10536 lines
289 KiB
C
10536 lines
289 KiB
C
// This is an open source non-commercial project. Dear PVS-Studio, please check
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// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
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/*
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* eval.c: Expression evaluation.
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*/
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#include <math.h>
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#ifdef HAVE_LOCALE_H
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# include <locale.h>
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#endif
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#include "nvim/ascii.h"
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#include "nvim/buffer.h"
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#include "nvim/change.h"
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#include "nvim/channel.h"
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#include "nvim/charset.h"
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#include "nvim/cursor.h"
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#include "nvim/edit.h"
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#include "nvim/eval/userfunc.h"
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#include "nvim/eval.h"
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#include "nvim/eval/encode.h"
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#include "nvim/eval/executor.h"
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#include "nvim/eval/gc.h"
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#include "nvim/eval/typval.h"
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#include "nvim/ex_cmds2.h"
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#include "nvim/ex_docmd.h"
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#include "nvim/ex_getln.h"
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#include "nvim/ex_session.h"
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#include "nvim/fileio.h"
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#include "nvim/getchar.h"
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#include "nvim/lua/executor.h"
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#include "nvim/mark.h"
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#include "nvim/memline.h"
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#include "nvim/misc1.h"
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#include "nvim/move.h"
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#include "nvim/ops.h"
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#include "nvim/option.h"
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#include "nvim/os/input.h"
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#include "nvim/os/os.h"
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#include "nvim/os/shell.h"
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#include "nvim/path.h"
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#include "nvim/quickfix.h"
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#include "nvim/regexp.h"
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#include "nvim/screen.h"
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#include "nvim/search.h"
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#include "nvim/sign.h"
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#include "nvim/syntax.h"
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#include "nvim/ui.h"
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#include "nvim/undo.h"
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#include "nvim/version.h"
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#include "nvim/window.h"
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// TODO(ZyX-I): Remove DICT_MAXNEST, make users be non-recursive instead
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#define DICT_MAXNEST 100 // maximum nesting of lists and dicts
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static char *e_letunexp = N_("E18: Unexpected characters in :let");
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static char *e_missbrac = N_("E111: Missing ']'");
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static char *e_dictrange = N_("E719: Cannot use [:] with a Dictionary");
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static char *e_illvar = N_("E461: Illegal variable name: %s");
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static char *e_cannot_mod = N_("E995: Cannot modify existing variable");
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static char *e_invalwindow = N_("E957: Invalid window number");
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// TODO(ZyX-I): move to eval/executor
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static char *e_letwrong = N_("E734: Wrong variable type for %s=");
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static char_u * const namespace_char = (char_u *)"abglstvw";
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/// Variable used for g:
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static ScopeDictDictItem globvars_var;
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/// g: value
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#define globvarht globvardict.dv_hashtab
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/*
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* Old Vim variables such as "v:version" are also available without the "v:".
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* Also in functions. We need a special hashtable for them.
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*/
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static hashtab_T compat_hashtab;
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/// Used for checking if local variables or arguments used in a lambda.
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bool *eval_lavars_used = NULL;
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/*
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* Array to hold the hashtab with variables local to each sourced script.
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* Each item holds a variable (nameless) that points to the dict_T.
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*/
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typedef struct {
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ScopeDictDictItem sv_var;
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dict_T sv_dict;
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} scriptvar_T;
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static garray_T ga_scripts = {0, 0, sizeof(scriptvar_T *), 4, NULL};
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#define SCRIPT_SV(id) (((scriptvar_T **)ga_scripts.ga_data)[(id) - 1])
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#define SCRIPT_VARS(id) (SCRIPT_SV(id)->sv_dict.dv_hashtab)
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static int echo_attr = 0; // attributes used for ":echo"
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// The names of packages that once were loaded are remembered.
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static garray_T ga_loaded = { 0, 0, sizeof(char_u *), 4, NULL };
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/*
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* Info used by a ":for" loop.
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*/
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typedef struct {
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int fi_semicolon; // TRUE if ending in '; var]'
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int fi_varcount; // nr of variables in the list
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listwatch_T fi_lw; // keep an eye on the item used.
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list_T *fi_list; // list being used
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} forinfo_T;
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// values for vv_flags:
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#define VV_COMPAT 1 // compatible, also used without "v:"
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#define VV_RO 2 // read-only
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#define VV_RO_SBX 4 // read-only in the sandbox
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#define VV(idx, name, type, flags) \
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[idx] = { \
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.vv_name = name, \
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.vv_di = { \
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.di_tv = { .v_type = type }, \
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.di_flags = 0, \
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.di_key = { 0 }, \
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}, \
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.vv_flags = flags, \
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}
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// Array to hold the value of v: variables.
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// The value is in a dictitem, so that it can also be used in the v: scope.
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// The reason to use this table anyway is for very quick access to the
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// variables with the VV_ defines.
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static struct vimvar {
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char *vv_name; ///< Name of the variable, without v:.
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TV_DICTITEM_STRUCT(17) vv_di; ///< Value and name for key (max 16 chars).
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char vv_flags; ///< Flags: #VV_COMPAT, #VV_RO, #VV_RO_SBX.
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} vimvars[] =
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{
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// VV_ tails differing from upcased string literals:
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// VV_CC_FROM "charconvert_from"
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// VV_CC_TO "charconvert_to"
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// VV_SEND_SERVER "servername"
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// VV_REG "register"
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// VV_OP "operator"
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VV(VV_COUNT, "count", VAR_NUMBER, VV_RO),
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VV(VV_COUNT1, "count1", VAR_NUMBER, VV_RO),
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VV(VV_PREVCOUNT, "prevcount", VAR_NUMBER, VV_RO),
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VV(VV_ERRMSG, "errmsg", VAR_STRING, 0),
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VV(VV_WARNINGMSG, "warningmsg", VAR_STRING, 0),
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VV(VV_STATUSMSG, "statusmsg", VAR_STRING, 0),
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VV(VV_SHELL_ERROR, "shell_error", VAR_NUMBER, VV_RO),
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VV(VV_THIS_SESSION, "this_session", VAR_STRING, 0),
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VV(VV_VERSION, "version", VAR_NUMBER, VV_COMPAT+VV_RO),
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VV(VV_LNUM, "lnum", VAR_NUMBER, VV_RO_SBX),
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VV(VV_TERMRESPONSE, "termresponse", VAR_STRING, VV_RO),
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VV(VV_FNAME, "fname", VAR_STRING, VV_RO),
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VV(VV_LANG, "lang", VAR_STRING, VV_RO),
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VV(VV_LC_TIME, "lc_time", VAR_STRING, VV_RO),
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VV(VV_CTYPE, "ctype", VAR_STRING, VV_RO),
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VV(VV_CC_FROM, "charconvert_from", VAR_STRING, VV_RO),
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VV(VV_CC_TO, "charconvert_to", VAR_STRING, VV_RO),
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VV(VV_FNAME_IN, "fname_in", VAR_STRING, VV_RO),
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VV(VV_FNAME_OUT, "fname_out", VAR_STRING, VV_RO),
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VV(VV_FNAME_NEW, "fname_new", VAR_STRING, VV_RO),
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VV(VV_FNAME_DIFF, "fname_diff", VAR_STRING, VV_RO),
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VV(VV_CMDARG, "cmdarg", VAR_STRING, VV_RO),
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VV(VV_FOLDSTART, "foldstart", VAR_NUMBER, VV_RO_SBX),
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VV(VV_FOLDEND, "foldend", VAR_NUMBER, VV_RO_SBX),
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VV(VV_FOLDDASHES, "folddashes", VAR_STRING, VV_RO_SBX),
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VV(VV_FOLDLEVEL, "foldlevel", VAR_NUMBER, VV_RO_SBX),
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VV(VV_PROGNAME, "progname", VAR_STRING, VV_RO),
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VV(VV_SEND_SERVER, "servername", VAR_STRING, VV_RO),
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VV(VV_DYING, "dying", VAR_NUMBER, VV_RO),
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VV(VV_EXCEPTION, "exception", VAR_STRING, VV_RO),
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VV(VV_THROWPOINT, "throwpoint", VAR_STRING, VV_RO),
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VV(VV_STDERR, "stderr", VAR_NUMBER, VV_RO),
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VV(VV_REG, "register", VAR_STRING, VV_RO),
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VV(VV_CMDBANG, "cmdbang", VAR_NUMBER, VV_RO),
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VV(VV_INSERTMODE, "insertmode", VAR_STRING, VV_RO),
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VV(VV_VAL, "val", VAR_UNKNOWN, VV_RO),
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VV(VV_KEY, "key", VAR_UNKNOWN, VV_RO),
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VV(VV_PROFILING, "profiling", VAR_NUMBER, VV_RO),
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VV(VV_FCS_REASON, "fcs_reason", VAR_STRING, VV_RO),
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VV(VV_FCS_CHOICE, "fcs_choice", VAR_STRING, 0),
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VV(VV_BEVAL_BUFNR, "beval_bufnr", VAR_NUMBER, VV_RO),
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VV(VV_BEVAL_WINNR, "beval_winnr", VAR_NUMBER, VV_RO),
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VV(VV_BEVAL_WINID, "beval_winid", VAR_NUMBER, VV_RO),
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VV(VV_BEVAL_LNUM, "beval_lnum", VAR_NUMBER, VV_RO),
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VV(VV_BEVAL_COL, "beval_col", VAR_NUMBER, VV_RO),
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VV(VV_BEVAL_TEXT, "beval_text", VAR_STRING, VV_RO),
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VV(VV_SCROLLSTART, "scrollstart", VAR_STRING, 0),
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VV(VV_SWAPNAME, "swapname", VAR_STRING, VV_RO),
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VV(VV_SWAPCHOICE, "swapchoice", VAR_STRING, 0),
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VV(VV_SWAPCOMMAND, "swapcommand", VAR_STRING, VV_RO),
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VV(VV_CHAR, "char", VAR_STRING, 0),
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VV(VV_MOUSE_WIN, "mouse_win", VAR_NUMBER, 0),
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VV(VV_MOUSE_WINID, "mouse_winid", VAR_NUMBER, 0),
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VV(VV_MOUSE_LNUM, "mouse_lnum", VAR_NUMBER, 0),
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VV(VV_MOUSE_COL, "mouse_col", VAR_NUMBER, 0),
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VV(VV_OP, "operator", VAR_STRING, VV_RO),
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VV(VV_SEARCHFORWARD, "searchforward", VAR_NUMBER, 0),
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VV(VV_HLSEARCH, "hlsearch", VAR_NUMBER, 0),
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VV(VV_OLDFILES, "oldfiles", VAR_LIST, 0),
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VV(VV_WINDOWID, "windowid", VAR_NUMBER, VV_RO_SBX),
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VV(VV_PROGPATH, "progpath", VAR_STRING, VV_RO),
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VV(VV_COMPLETED_ITEM, "completed_item", VAR_DICT, VV_RO),
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VV(VV_OPTION_NEW, "option_new", VAR_STRING, VV_RO),
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VV(VV_OPTION_OLD, "option_old", VAR_STRING, VV_RO),
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VV(VV_OPTION_TYPE, "option_type", VAR_STRING, VV_RO),
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VV(VV_ERRORS, "errors", VAR_LIST, 0),
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VV(VV_MSGPACK_TYPES, "msgpack_types", VAR_DICT, VV_RO),
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VV(VV_EVENT, "event", VAR_DICT, VV_RO),
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VV(VV_FALSE, "false", VAR_BOOL, VV_RO),
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VV(VV_TRUE, "true", VAR_BOOL, VV_RO),
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VV(VV_NULL, "null", VAR_SPECIAL, VV_RO),
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VV(VV__NULL_LIST, "_null_list", VAR_LIST, VV_RO),
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VV(VV__NULL_DICT, "_null_dict", VAR_DICT, VV_RO),
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VV(VV_VIM_DID_ENTER, "vim_did_enter", VAR_NUMBER, VV_RO),
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VV(VV_TESTING, "testing", VAR_NUMBER, 0),
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VV(VV_TYPE_NUMBER, "t_number", VAR_NUMBER, VV_RO),
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VV(VV_TYPE_STRING, "t_string", VAR_NUMBER, VV_RO),
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VV(VV_TYPE_FUNC, "t_func", VAR_NUMBER, VV_RO),
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VV(VV_TYPE_LIST, "t_list", VAR_NUMBER, VV_RO),
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VV(VV_TYPE_DICT, "t_dict", VAR_NUMBER, VV_RO),
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VV(VV_TYPE_FLOAT, "t_float", VAR_NUMBER, VV_RO),
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VV(VV_TYPE_BOOL, "t_bool", VAR_NUMBER, VV_RO),
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VV(VV_ECHOSPACE, "echospace", VAR_NUMBER, VV_RO),
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VV(VV_EXITING, "exiting", VAR_NUMBER, VV_RO),
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VV(VV_LUA, "lua", VAR_PARTIAL, VV_RO),
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VV(VV_ARGV, "argv", VAR_LIST, VV_RO),
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};
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#undef VV
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// shorthand
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#define vv_type vv_di.di_tv.v_type
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#define vv_nr vv_di.di_tv.vval.v_number
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#define vv_bool vv_di.di_tv.vval.v_bool
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#define vv_special vv_di.di_tv.vval.v_special
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#define vv_float vv_di.di_tv.vval.v_float
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#define vv_str vv_di.di_tv.vval.v_string
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#define vv_list vv_di.di_tv.vval.v_list
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#define vv_dict vv_di.di_tv.vval.v_dict
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#define vv_partial vv_di.di_tv.vval.v_partial
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#define vv_tv vv_di.di_tv
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/// Variable used for v:
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static ScopeDictDictItem vimvars_var;
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static partial_T *vvlua_partial;
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/// v: hashtab
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#define vimvarht vimvardict.dv_hashtab
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#ifdef INCLUDE_GENERATED_DECLARATIONS
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# include "eval.c.generated.h"
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#endif
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static uint64_t last_timer_id = 1;
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static PMap(uint64_t) *timers = NULL;
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static const char *const msgpack_type_names[] = {
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[kMPNil] = "nil",
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[kMPBoolean] = "boolean",
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[kMPInteger] = "integer",
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[kMPFloat] = "float",
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[kMPString] = "string",
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[kMPBinary] = "binary",
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[kMPArray] = "array",
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[kMPMap] = "map",
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[kMPExt] = "ext",
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};
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const list_T *eval_msgpack_type_lists[] = {
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[kMPNil] = NULL,
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[kMPBoolean] = NULL,
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[kMPInteger] = NULL,
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[kMPFloat] = NULL,
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[kMPString] = NULL,
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[kMPBinary] = NULL,
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[kMPArray] = NULL,
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[kMPMap] = NULL,
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[kMPExt] = NULL,
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};
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// Return "n1" divided by "n2", taking care of dividing by zero.
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varnumber_T num_divide(varnumber_T n1, varnumber_T n2)
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FUNC_ATTR_CONST FUNC_ATTR_WARN_UNUSED_RESULT
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{
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varnumber_T result;
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if (n2 == 0) { // give an error message?
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if (n1 == 0) {
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result = VARNUMBER_MIN; // similar to NaN
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} else if (n1 < 0) {
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result = -VARNUMBER_MAX;
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} else {
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result = VARNUMBER_MAX;
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}
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} else {
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result = n1 / n2;
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}
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return result;
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}
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// Return "n1" modulus "n2", taking care of dividing by zero.
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varnumber_T num_modulus(varnumber_T n1, varnumber_T n2)
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FUNC_ATTR_CONST FUNC_ATTR_WARN_UNUSED_RESULT
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{
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// Give an error when n2 is 0?
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return (n2 == 0) ? 0 : (n1 % n2);
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}
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/*
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* Initialize the global and v: variables.
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*/
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void eval_init(void)
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{
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vimvars[VV_VERSION].vv_nr = VIM_VERSION_100;
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timers = pmap_new(uint64_t)();
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struct vimvar *p;
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init_var_dict(&globvardict, &globvars_var, VAR_DEF_SCOPE);
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init_var_dict(&vimvardict, &vimvars_var, VAR_SCOPE);
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vimvardict.dv_lock = VAR_FIXED;
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hash_init(&compat_hashtab);
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func_init();
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for (size_t i = 0; i < ARRAY_SIZE(vimvars); i++) {
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p = &vimvars[i];
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assert(STRLEN(p->vv_name) <= 16);
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STRCPY(p->vv_di.di_key, p->vv_name);
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if (p->vv_flags & VV_RO)
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p->vv_di.di_flags = DI_FLAGS_RO | DI_FLAGS_FIX;
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else if (p->vv_flags & VV_RO_SBX)
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p->vv_di.di_flags = DI_FLAGS_RO_SBX | DI_FLAGS_FIX;
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else
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p->vv_di.di_flags = DI_FLAGS_FIX;
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|
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// add to v: scope dict, unless the value is not always available
|
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if (p->vv_type != VAR_UNKNOWN) {
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hash_add(&vimvarht, p->vv_di.di_key);
|
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}
|
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if (p->vv_flags & VV_COMPAT) {
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// add to compat scope dict
|
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hash_add(&compat_hashtab, p->vv_di.di_key);
|
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}
|
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}
|
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vimvars[VV_VERSION].vv_nr = VIM_VERSION_100;
|
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|
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dict_T *const msgpack_types_dict = tv_dict_alloc();
|
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for (size_t i = 0; i < ARRAY_SIZE(msgpack_type_names); i++) {
|
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list_T *const type_list = tv_list_alloc(0);
|
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tv_list_set_lock(type_list, VAR_FIXED);
|
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tv_list_ref(type_list);
|
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dictitem_T *const di = tv_dict_item_alloc(msgpack_type_names[i]);
|
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di->di_flags |= DI_FLAGS_RO|DI_FLAGS_FIX;
|
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di->di_tv = (typval_T) {
|
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.v_type = VAR_LIST,
|
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.vval = { .v_list = type_list, },
|
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};
|
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eval_msgpack_type_lists[i] = type_list;
|
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if (tv_dict_add(msgpack_types_dict, di) == FAIL) {
|
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// There must not be duplicate items in this dictionary by definition.
|
||
assert(false);
|
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}
|
||
}
|
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msgpack_types_dict->dv_lock = VAR_FIXED;
|
||
|
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set_vim_var_dict(VV_MSGPACK_TYPES, msgpack_types_dict);
|
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set_vim_var_dict(VV_COMPLETED_ITEM, tv_dict_alloc());
|
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|
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dict_T *v_event = tv_dict_alloc();
|
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v_event->dv_lock = VAR_FIXED;
|
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set_vim_var_dict(VV_EVENT, v_event);
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set_vim_var_list(VV_ERRORS, tv_list_alloc(kListLenUnknown));
|
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set_vim_var_nr(VV_STDERR, CHAN_STDERR);
|
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set_vim_var_nr(VV_SEARCHFORWARD, 1L);
|
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set_vim_var_nr(VV_HLSEARCH, 1L);
|
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set_vim_var_nr(VV_COUNT1, 1);
|
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set_vim_var_nr(VV_TYPE_NUMBER, VAR_TYPE_NUMBER);
|
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set_vim_var_nr(VV_TYPE_STRING, VAR_TYPE_STRING);
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set_vim_var_nr(VV_TYPE_FUNC, VAR_TYPE_FUNC);
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set_vim_var_nr(VV_TYPE_LIST, VAR_TYPE_LIST);
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set_vim_var_nr(VV_TYPE_DICT, VAR_TYPE_DICT);
|
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set_vim_var_nr(VV_TYPE_FLOAT, VAR_TYPE_FLOAT);
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set_vim_var_nr(VV_TYPE_BOOL, VAR_TYPE_BOOL);
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set_vim_var_bool(VV_FALSE, kBoolVarFalse);
|
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set_vim_var_bool(VV_TRUE, kBoolVarTrue);
|
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set_vim_var_special(VV_NULL, kSpecialVarNull);
|
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set_vim_var_special(VV_EXITING, kSpecialVarNull);
|
||
|
||
set_vim_var_nr(VV_ECHOSPACE, sc_col - 1);
|
||
|
||
vimvars[VV_LUA].vv_type = VAR_PARTIAL;
|
||
vvlua_partial = xcalloc(1, sizeof(partial_T));
|
||
vimvars[VV_LUA].vv_partial = vvlua_partial;
|
||
// this value shouldn't be printed, but if it is, do not crash
|
||
vvlua_partial->pt_name = xmallocz(0);
|
||
vvlua_partial->pt_refcount++;
|
||
|
||
set_reg_var(0); // default for v:register is not 0 but '"'
|
||
}
|
||
|
||
#if defined(EXITFREE)
|
||
void eval_clear(void)
|
||
{
|
||
struct vimvar *p;
|
||
|
||
for (size_t i = 0; i < ARRAY_SIZE(vimvars); i++) {
|
||
p = &vimvars[i];
|
||
if (p->vv_di.di_tv.v_type == VAR_STRING) {
|
||
XFREE_CLEAR(p->vv_str);
|
||
} else if (p->vv_di.di_tv.v_type == VAR_LIST) {
|
||
tv_list_unref(p->vv_list);
|
||
p->vv_list = NULL;
|
||
}
|
||
}
|
||
hash_clear(&vimvarht);
|
||
hash_init(&vimvarht); // garbage_collect() will access it
|
||
hash_clear(&compat_hashtab);
|
||
|
||
free_scriptnames();
|
||
free_locales();
|
||
|
||
// global variables
|
||
vars_clear(&globvarht);
|
||
|
||
// autoloaded script names
|
||
ga_clear_strings(&ga_loaded);
|
||
|
||
/* Script-local variables. First clear all the variables and in a second
|
||
* loop free the scriptvar_T, because a variable in one script might hold
|
||
* a reference to the whole scope of another script. */
|
||
for (int i = 1; i <= ga_scripts.ga_len; ++i)
|
||
vars_clear(&SCRIPT_VARS(i));
|
||
for (int i = 1; i <= ga_scripts.ga_len; ++i)
|
||
xfree(SCRIPT_SV(i));
|
||
ga_clear(&ga_scripts);
|
||
|
||
// unreferenced lists and dicts
|
||
(void)garbage_collect(false);
|
||
|
||
// functions not garbage collected
|
||
free_all_functions();
|
||
}
|
||
|
||
#endif
|
||
|
||
/*
|
||
* Set an internal variable to a string value. Creates the variable if it does
|
||
* not already exist.
|
||
*/
|
||
void set_internal_string_var(char_u *name, char_u *value)
|
||
{
|
||
const typval_T tv = {
|
||
.v_type = VAR_STRING,
|
||
.vval.v_string = value,
|
||
};
|
||
|
||
set_var((const char *)name, STRLEN(name), (typval_T *)&tv, true);
|
||
}
|
||
|
||
static lval_T *redir_lval = NULL;
|
||
static garray_T redir_ga; // Only valid when redir_lval is not NULL.
|
||
static char_u *redir_endp = NULL;
|
||
static char_u *redir_varname = NULL;
|
||
|
||
/*
|
||
* Start recording command output to a variable
|
||
* Returns OK if successfully completed the setup. FAIL otherwise.
|
||
*/
|
||
int
|
||
var_redir_start(
|
||
char_u *name,
|
||
int append // append to an existing variable
|
||
)
|
||
{
|
||
int save_emsg;
|
||
int err;
|
||
typval_T tv;
|
||
|
||
// Catch a bad name early.
|
||
if (!eval_isnamec1(*name)) {
|
||
EMSG(_(e_invarg));
|
||
return FAIL;
|
||
}
|
||
|
||
// Make a copy of the name, it is used in redir_lval until redir ends.
|
||
redir_varname = vim_strsave(name);
|
||
|
||
redir_lval = xcalloc(1, sizeof(lval_T));
|
||
|
||
// The output is stored in growarray "redir_ga" until redirection ends.
|
||
ga_init(&redir_ga, (int)sizeof(char), 500);
|
||
|
||
// Parse the variable name (can be a dict or list entry).
|
||
redir_endp = (char_u *)get_lval(redir_varname, NULL, redir_lval, false, false,
|
||
0, FNE_CHECK_START);
|
||
if (redir_endp == NULL || redir_lval->ll_name == NULL
|
||
|| *redir_endp != NUL) {
|
||
clear_lval(redir_lval);
|
||
if (redir_endp != NULL && *redir_endp != NUL) {
|
||
// Trailing characters are present after the variable name
|
||
EMSG(_(e_trailing));
|
||
} else {
|
||
EMSG(_(e_invarg));
|
||
}
|
||
redir_endp = NULL; // don't store a value, only cleanup
|
||
var_redir_stop();
|
||
return FAIL;
|
||
}
|
||
|
||
/* check if we can write to the variable: set it to or append an empty
|
||
* string */
|
||
save_emsg = did_emsg;
|
||
did_emsg = FALSE;
|
||
tv.v_type = VAR_STRING;
|
||
tv.vval.v_string = (char_u *)"";
|
||
if (append) {
|
||
set_var_lval(redir_lval, redir_endp, &tv, true, false, (char_u *)".");
|
||
} else {
|
||
set_var_lval(redir_lval, redir_endp, &tv, true, false, (char_u *)"=");
|
||
}
|
||
clear_lval(redir_lval);
|
||
err = did_emsg;
|
||
did_emsg |= save_emsg;
|
||
if (err) {
|
||
redir_endp = NULL; // don't store a value, only cleanup
|
||
var_redir_stop();
|
||
return FAIL;
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
/*
|
||
* Append "value[value_len]" to the variable set by var_redir_start().
|
||
* The actual appending is postponed until redirection ends, because the value
|
||
* appended may in fact be the string we write to, changing it may cause freed
|
||
* memory to be used:
|
||
* :redir => foo
|
||
* :let foo
|
||
* :redir END
|
||
*/
|
||
void var_redir_str(char_u *value, int value_len)
|
||
{
|
||
int len;
|
||
|
||
if (redir_lval == NULL)
|
||
return;
|
||
|
||
if (value_len == -1) {
|
||
len = (int)STRLEN(value); // Append the entire string
|
||
} else {
|
||
len = value_len; // Append only "value_len" characters
|
||
}
|
||
|
||
ga_grow(&redir_ga, len);
|
||
memmove((char *)redir_ga.ga_data + redir_ga.ga_len, value, len);
|
||
redir_ga.ga_len += len;
|
||
}
|
||
|
||
/*
|
||
* Stop redirecting command output to a variable.
|
||
* Frees the allocated memory.
|
||
*/
|
||
void var_redir_stop(void)
|
||
{
|
||
typval_T tv;
|
||
|
||
if (redir_lval != NULL) {
|
||
// If there was no error: assign the text to the variable.
|
||
if (redir_endp != NULL) {
|
||
ga_append(&redir_ga, NUL); // Append the trailing NUL.
|
||
tv.v_type = VAR_STRING;
|
||
tv.vval.v_string = redir_ga.ga_data;
|
||
// Call get_lval() again, if it's inside a Dict or List it may
|
||
// have changed.
|
||
redir_endp = (char_u *)get_lval(redir_varname, NULL, redir_lval,
|
||
false, false, 0, FNE_CHECK_START);
|
||
if (redir_endp != NULL && redir_lval->ll_name != NULL) {
|
||
set_var_lval(redir_lval, redir_endp, &tv, false, false, (char_u *)".");
|
||
}
|
||
clear_lval(redir_lval);
|
||
}
|
||
|
||
// free the collected output
|
||
XFREE_CLEAR(redir_ga.ga_data);
|
||
|
||
XFREE_CLEAR(redir_lval);
|
||
}
|
||
XFREE_CLEAR(redir_varname);
|
||
}
|
||
|
||
int eval_charconvert(const char *const enc_from, const char *const enc_to,
|
||
const char *const fname_from, const char *const fname_to)
|
||
{
|
||
bool err = false;
|
||
|
||
set_vim_var_string(VV_CC_FROM, enc_from, -1);
|
||
set_vim_var_string(VV_CC_TO, enc_to, -1);
|
||
set_vim_var_string(VV_FNAME_IN, fname_from, -1);
|
||
set_vim_var_string(VV_FNAME_OUT, fname_to, -1);
|
||
if (eval_to_bool(p_ccv, &err, NULL, false)) {
|
||
err = true;
|
||
}
|
||
set_vim_var_string(VV_CC_FROM, NULL, -1);
|
||
set_vim_var_string(VV_CC_TO, NULL, -1);
|
||
set_vim_var_string(VV_FNAME_IN, NULL, -1);
|
||
set_vim_var_string(VV_FNAME_OUT, NULL, -1);
|
||
|
||
if (err) {
|
||
return FAIL;
|
||
}
|
||
return OK;
|
||
}
|
||
|
||
int eval_printexpr(const char *const fname, const char *const args)
|
||
{
|
||
bool err = false;
|
||
|
||
set_vim_var_string(VV_FNAME_IN, fname, -1);
|
||
set_vim_var_string(VV_CMDARG, args, -1);
|
||
if (eval_to_bool(p_pexpr, &err, NULL, false)) {
|
||
err = true;
|
||
}
|
||
set_vim_var_string(VV_FNAME_IN, NULL, -1);
|
||
set_vim_var_string(VV_CMDARG, NULL, -1);
|
||
|
||
if (err) {
|
||
os_remove(fname);
|
||
return FAIL;
|
||
}
|
||
return OK;
|
||
}
|
||
|
||
void eval_diff(const char *const origfile, const char *const newfile,
|
||
const char *const outfile)
|
||
{
|
||
bool err = false;
|
||
|
||
set_vim_var_string(VV_FNAME_IN, origfile, -1);
|
||
set_vim_var_string(VV_FNAME_NEW, newfile, -1);
|
||
set_vim_var_string(VV_FNAME_OUT, outfile, -1);
|
||
(void)eval_to_bool(p_dex, &err, NULL, FALSE);
|
||
set_vim_var_string(VV_FNAME_IN, NULL, -1);
|
||
set_vim_var_string(VV_FNAME_NEW, NULL, -1);
|
||
set_vim_var_string(VV_FNAME_OUT, NULL, -1);
|
||
}
|
||
|
||
void eval_patch(const char *const origfile, const char *const difffile,
|
||
const char *const outfile)
|
||
{
|
||
bool err = false;
|
||
|
||
set_vim_var_string(VV_FNAME_IN, origfile, -1);
|
||
set_vim_var_string(VV_FNAME_DIFF, difffile, -1);
|
||
set_vim_var_string(VV_FNAME_OUT, outfile, -1);
|
||
(void)eval_to_bool(p_pex, &err, NULL, FALSE);
|
||
set_vim_var_string(VV_FNAME_IN, NULL, -1);
|
||
set_vim_var_string(VV_FNAME_DIFF, NULL, -1);
|
||
set_vim_var_string(VV_FNAME_OUT, NULL, -1);
|
||
}
|
||
|
||
/*
|
||
* Top level evaluation function, returning a boolean.
|
||
* Sets "error" to TRUE if there was an error.
|
||
* Return TRUE or FALSE.
|
||
*/
|
||
int
|
||
eval_to_bool(
|
||
char_u *arg,
|
||
bool *error,
|
||
char_u **nextcmd,
|
||
int skip // only parse, don't execute
|
||
)
|
||
{
|
||
typval_T tv;
|
||
bool retval = false;
|
||
|
||
if (skip) {
|
||
emsg_skip++;
|
||
}
|
||
if (eval0(arg, &tv, nextcmd, !skip) == FAIL) {
|
||
*error = true;
|
||
} else {
|
||
*error = false;
|
||
if (!skip) {
|
||
retval = (tv_get_number_chk(&tv, error) != 0);
|
||
tv_clear(&tv);
|
||
}
|
||
}
|
||
if (skip) {
|
||
emsg_skip--;
|
||
}
|
||
|
||
return retval;
|
||
}
|
||
|
||
// Call eval1() and give an error message if not done at a lower level.
|
||
static int eval1_emsg(char_u **arg, typval_T *rettv, bool evaluate)
|
||
FUNC_ATTR_NONNULL_ARG(1, 2)
|
||
{
|
||
const char_u *const start = *arg;
|
||
const int did_emsg_before = did_emsg;
|
||
const int called_emsg_before = called_emsg;
|
||
|
||
const int ret = eval1(arg, rettv, evaluate);
|
||
if (ret == FAIL) {
|
||
// Report the invalid expression unless the expression evaluation has
|
||
// been cancelled due to an aborting error, an interrupt, or an
|
||
// exception, or we already gave a more specific error.
|
||
// Also check called_emsg for when using assert_fails().
|
||
if (!aborting()
|
||
&& did_emsg == did_emsg_before
|
||
&& called_emsg == called_emsg_before) {
|
||
emsgf(_(e_invexpr2), start);
|
||
}
|
||
}
|
||
return ret;
|
||
}
|
||
|
||
int eval_expr_typval(const typval_T *expr, typval_T *argv,
|
||
int argc, typval_T *rettv)
|
||
FUNC_ATTR_NONNULL_ARG(1, 2, 4)
|
||
{
|
||
int dummy;
|
||
|
||
if (expr->v_type == VAR_FUNC) {
|
||
const char_u *const s = expr->vval.v_string;
|
||
if (s == NULL || *s == NUL) {
|
||
return FAIL;
|
||
}
|
||
if (call_func(s, (int)STRLEN(s), rettv, argc, argv, NULL,
|
||
0L, 0L, &dummy, true, NULL, NULL) == FAIL) {
|
||
return FAIL;
|
||
}
|
||
} else if (expr->v_type == VAR_PARTIAL) {
|
||
partial_T *const partial = expr->vval.v_partial;
|
||
const char_u *const s = partial_name(partial);
|
||
if (s == NULL || *s == NUL) {
|
||
return FAIL;
|
||
}
|
||
if (call_func(s, (int)STRLEN(s), rettv, argc, argv, NULL,
|
||
0L, 0L, &dummy, true, partial, NULL) == FAIL) {
|
||
return FAIL;
|
||
}
|
||
} else {
|
||
char buf[NUMBUFLEN];
|
||
char_u *s = (char_u *)tv_get_string_buf_chk(expr, buf);
|
||
if (s == NULL) {
|
||
return FAIL;
|
||
}
|
||
s = skipwhite(s);
|
||
if (eval1_emsg(&s, rettv, true) == FAIL) {
|
||
return FAIL;
|
||
}
|
||
if (*s != NUL) { // check for trailing chars after expr
|
||
tv_clear(rettv);
|
||
emsgf(_(e_invexpr2), s);
|
||
return FAIL;
|
||
}
|
||
}
|
||
return OK;
|
||
}
|
||
|
||
/// Like eval_to_bool() but using a typval_T instead of a string.
|
||
/// Works for string, funcref and partial.
|
||
bool eval_expr_to_bool(const typval_T *expr, bool *error)
|
||
FUNC_ATTR_NONNULL_ARG(1, 2)
|
||
{
|
||
typval_T argv, rettv;
|
||
|
||
if (eval_expr_typval(expr, &argv, 0, &rettv) == FAIL) {
|
||
*error = true;
|
||
return false;
|
||
}
|
||
const bool res = (tv_get_number_chk(&rettv, error) != 0);
|
||
tv_clear(&rettv);
|
||
return res;
|
||
}
|
||
|
||
/// Top level evaluation function, returning a string
|
||
///
|
||
/// @param[in] arg String to evaluate.
|
||
/// @param nextcmd Pointer to the start of the next Ex command.
|
||
/// @param[in] skip If true, only do parsing to nextcmd without reporting
|
||
/// errors or actually evaluating anything.
|
||
///
|
||
/// @return [allocated] string result of evaluation or NULL in case of error or
|
||
/// when skipping.
|
||
char *eval_to_string_skip(const char *arg, const char **nextcmd,
|
||
const bool skip)
|
||
FUNC_ATTR_MALLOC FUNC_ATTR_NONNULL_ARG(1) FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
typval_T tv;
|
||
char *retval;
|
||
|
||
if (skip) {
|
||
emsg_skip++;
|
||
}
|
||
if (eval0((char_u *)arg, &tv, (char_u **)nextcmd, !skip) == FAIL || skip) {
|
||
retval = NULL;
|
||
} else {
|
||
retval = xstrdup(tv_get_string(&tv));
|
||
tv_clear(&tv);
|
||
}
|
||
if (skip) {
|
||
emsg_skip--;
|
||
}
|
||
|
||
return retval;
|
||
}
|
||
|
||
/*
|
||
* Skip over an expression at "*pp".
|
||
* Return FAIL for an error, OK otherwise.
|
||
*/
|
||
int skip_expr(char_u **pp)
|
||
{
|
||
typval_T rettv;
|
||
|
||
*pp = skipwhite(*pp);
|
||
return eval1(pp, &rettv, FALSE);
|
||
}
|
||
|
||
/*
|
||
* Top level evaluation function, returning a string.
|
||
* When "convert" is TRUE convert a List into a sequence of lines and convert
|
||
* a Float to a String.
|
||
* Return pointer to allocated memory, or NULL for failure.
|
||
*/
|
||
char_u *eval_to_string(char_u *arg, char_u **nextcmd, int convert)
|
||
{
|
||
typval_T tv;
|
||
char *retval;
|
||
garray_T ga;
|
||
|
||
if (eval0(arg, &tv, nextcmd, true) == FAIL) {
|
||
retval = NULL;
|
||
} else {
|
||
if (convert && tv.v_type == VAR_LIST) {
|
||
ga_init(&ga, (int)sizeof(char), 80);
|
||
if (tv.vval.v_list != NULL) {
|
||
tv_list_join(&ga, tv.vval.v_list, "\n");
|
||
if (tv_list_len(tv.vval.v_list) > 0) {
|
||
ga_append(&ga, NL);
|
||
}
|
||
}
|
||
ga_append(&ga, NUL);
|
||
retval = (char *)ga.ga_data;
|
||
} else if (convert && tv.v_type == VAR_FLOAT) {
|
||
char numbuf[NUMBUFLEN];
|
||
vim_snprintf(numbuf, NUMBUFLEN, "%g", tv.vval.v_float);
|
||
retval = xstrdup(numbuf);
|
||
} else {
|
||
retval = xstrdup(tv_get_string(&tv));
|
||
}
|
||
tv_clear(&tv);
|
||
}
|
||
|
||
return (char_u *)retval;
|
||
}
|
||
|
||
/*
|
||
* Call eval_to_string() without using current local variables and using
|
||
* textlock. When "use_sandbox" is TRUE use the sandbox.
|
||
*/
|
||
char_u *eval_to_string_safe(char_u *arg, char_u **nextcmd, int use_sandbox)
|
||
{
|
||
char_u *retval;
|
||
funccal_entry_T funccal_entry;
|
||
|
||
save_funccal(&funccal_entry);
|
||
if (use_sandbox) {
|
||
sandbox++;
|
||
}
|
||
textlock++;
|
||
retval = eval_to_string(arg, nextcmd, false);
|
||
if (use_sandbox) {
|
||
sandbox--;
|
||
}
|
||
textlock--;
|
||
restore_funccal();
|
||
return retval;
|
||
}
|
||
|
||
/*
|
||
* Top level evaluation function, returning a number.
|
||
* Evaluates "expr" silently.
|
||
* Returns -1 for an error.
|
||
*/
|
||
varnumber_T eval_to_number(char_u *expr)
|
||
{
|
||
typval_T rettv;
|
||
varnumber_T retval;
|
||
char_u *p = skipwhite(expr);
|
||
|
||
++emsg_off;
|
||
|
||
if (eval1(&p, &rettv, true) == FAIL) {
|
||
retval = -1;
|
||
} else {
|
||
retval = tv_get_number_chk(&rettv, NULL);
|
||
tv_clear(&rettv);
|
||
}
|
||
--emsg_off;
|
||
|
||
return retval;
|
||
}
|
||
|
||
|
||
/*
|
||
* Prepare v: variable "idx" to be used.
|
||
* Save the current typeval in "save_tv".
|
||
* When not used yet add the variable to the v: hashtable.
|
||
*/
|
||
void prepare_vimvar(int idx, typval_T *save_tv)
|
||
{
|
||
*save_tv = vimvars[idx].vv_tv;
|
||
if (vimvars[idx].vv_type == VAR_UNKNOWN)
|
||
hash_add(&vimvarht, vimvars[idx].vv_di.di_key);
|
||
}
|
||
|
||
/*
|
||
* Restore v: variable "idx" to typeval "save_tv".
|
||
* When no longer defined, remove the variable from the v: hashtable.
|
||
*/
|
||
void restore_vimvar(int idx, typval_T *save_tv)
|
||
{
|
||
hashitem_T *hi;
|
||
|
||
vimvars[idx].vv_tv = *save_tv;
|
||
if (vimvars[idx].vv_type == VAR_UNKNOWN) {
|
||
hi = hash_find(&vimvarht, vimvars[idx].vv_di.di_key);
|
||
if (HASHITEM_EMPTY(hi)) {
|
||
internal_error("restore_vimvar()");
|
||
} else {
|
||
hash_remove(&vimvarht, hi);
|
||
}
|
||
}
|
||
}
|
||
|
||
/// If there is a window for "curbuf", make it the current window.
|
||
void find_win_for_curbuf(void)
|
||
{
|
||
for (wininfo_T *wip = curbuf->b_wininfo; wip != NULL; wip = wip->wi_next) {
|
||
if (wip->wi_win != NULL) {
|
||
curwin = wip->wi_win;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Evaluate an expression to a list with suggestions.
|
||
* For the "expr:" part of 'spellsuggest'.
|
||
* Returns NULL when there is an error.
|
||
*/
|
||
list_T *eval_spell_expr(char_u *badword, char_u *expr)
|
||
{
|
||
typval_T save_val;
|
||
typval_T rettv;
|
||
list_T *list = NULL;
|
||
char_u *p = skipwhite(expr);
|
||
|
||
// Set "v:val" to the bad word.
|
||
prepare_vimvar(VV_VAL, &save_val);
|
||
vimvars[VV_VAL].vv_type = VAR_STRING;
|
||
vimvars[VV_VAL].vv_str = badword;
|
||
if (p_verbose == 0)
|
||
++emsg_off;
|
||
|
||
if (eval1(&p, &rettv, true) == OK) {
|
||
if (rettv.v_type != VAR_LIST) {
|
||
tv_clear(&rettv);
|
||
} else {
|
||
list = rettv.vval.v_list;
|
||
}
|
||
}
|
||
|
||
if (p_verbose == 0)
|
||
--emsg_off;
|
||
restore_vimvar(VV_VAL, &save_val);
|
||
|
||
return list;
|
||
}
|
||
|
||
/// Get spell word from an entry from spellsuggest=expr:
|
||
///
|
||
/// Entry in question is supposed to be a list (to be checked by the caller)
|
||
/// with two items: a word and a score represented as an unsigned number
|
||
/// (whether it actually is unsigned is not checked).
|
||
///
|
||
/// Used to get the good word and score from the eval_spell_expr() result.
|
||
///
|
||
/// @param[in] list List to get values from.
|
||
/// @param[out] ret_word Suggested word. Not initialized if return value is
|
||
/// -1.
|
||
///
|
||
/// @return -1 in case of error, score otherwise.
|
||
int get_spellword(list_T *const list, const char **ret_word)
|
||
{
|
||
if (tv_list_len(list) != 2) {
|
||
EMSG(_("E5700: Expression from 'spellsuggest' must yield lists with "
|
||
"exactly two values"));
|
||
return -1;
|
||
}
|
||
*ret_word = tv_list_find_str(list, 0);
|
||
if (*ret_word == NULL) {
|
||
return -1;
|
||
}
|
||
return tv_list_find_nr(list, -1, NULL);
|
||
}
|
||
|
||
|
||
// Call some vim script function and return the result in "*rettv".
|
||
// Uses argv[0] to argv[argc-1] for the function arguments. argv[argc]
|
||
// should have type VAR_UNKNOWN.
|
||
//
|
||
// Return OK or FAIL.
|
||
int call_vim_function(
|
||
const char_u *func,
|
||
int argc,
|
||
typval_T *argv,
|
||
typval_T *rettv
|
||
)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
int doesrange;
|
||
int ret;
|
||
int len = (int)STRLEN(func);
|
||
partial_T *pt = NULL;
|
||
|
||
if (len >= 6 && !memcmp(func, "v:lua.", 6)) {
|
||
func += 6;
|
||
len = check_luafunc_name((const char *)func, false);
|
||
if (len == 0) {
|
||
ret = FAIL;
|
||
goto fail;
|
||
}
|
||
pt = vvlua_partial;
|
||
}
|
||
|
||
rettv->v_type = VAR_UNKNOWN; // tv_clear() uses this.
|
||
ret = call_func(func, len, rettv, argc, argv, NULL,
|
||
curwin->w_cursor.lnum, curwin->w_cursor.lnum,
|
||
&doesrange, true, pt, NULL);
|
||
|
||
fail:
|
||
if (ret == FAIL) {
|
||
tv_clear(rettv);
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
/// Call Vim script function and return the result as a number
|
||
///
|
||
/// @param[in] func Function name.
|
||
/// @param[in] argc Number of arguments.
|
||
/// @param[in] argv Array with typval_T arguments.
|
||
///
|
||
/// @return -1 when calling function fails, result of function otherwise.
|
||
varnumber_T call_func_retnr(const char_u *func, int argc,
|
||
typval_T *argv)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
typval_T rettv;
|
||
varnumber_T retval;
|
||
|
||
if (call_vim_function(func, argc, argv, &rettv) == FAIL) {
|
||
return -1;
|
||
}
|
||
retval = tv_get_number_chk(&rettv, NULL);
|
||
tv_clear(&rettv);
|
||
return retval;
|
||
}
|
||
/// Call Vim script function and return the result as a string
|
||
///
|
||
/// @param[in] func Function name.
|
||
/// @param[in] argc Number of arguments.
|
||
/// @param[in] argv Array with typval_T arguments.
|
||
///
|
||
/// @return [allocated] NULL when calling function fails, allocated string
|
||
/// otherwise.
|
||
char *call_func_retstr(const char *const func, int argc,
|
||
typval_T *argv)
|
||
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_MALLOC
|
||
{
|
||
typval_T rettv;
|
||
// All arguments are passed as strings, no conversion to number.
|
||
if (call_vim_function((const char_u *)func, argc, argv, &rettv)
|
||
== FAIL) {
|
||
return NULL;
|
||
}
|
||
|
||
char *const retval = xstrdup(tv_get_string(&rettv));
|
||
tv_clear(&rettv);
|
||
return retval;
|
||
}
|
||
/// Call Vim script function and return the result as a List
|
||
///
|
||
/// @param[in] func Function name.
|
||
/// @param[in] argc Number of arguments.
|
||
/// @param[in] argv Array with typval_T arguments.
|
||
///
|
||
/// @return [allocated] NULL when calling function fails or return tv is not a
|
||
/// List, allocated List otherwise.
|
||
void *call_func_retlist(const char_u *func, int argc, typval_T *argv)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
typval_T rettv;
|
||
|
||
// All arguments are passed as strings, no conversion to number.
|
||
if (call_vim_function(func, argc, argv, &rettv) == FAIL) {
|
||
return NULL;
|
||
}
|
||
|
||
if (rettv.v_type != VAR_LIST) {
|
||
tv_clear(&rettv);
|
||
return NULL;
|
||
}
|
||
|
||
return rettv.vval.v_list;
|
||
}
|
||
|
||
/*
|
||
* Prepare profiling for entering a child or something else that is not
|
||
* counted for the script/function itself.
|
||
* Should always be called in pair with prof_child_exit().
|
||
*/
|
||
void prof_child_enter(
|
||
proftime_T *tm // place to store waittime
|
||
)
|
||
{
|
||
funccall_T *fc = get_current_funccal();
|
||
|
||
if (fc != NULL && fc->func->uf_profiling) {
|
||
fc->prof_child = profile_start();
|
||
}
|
||
|
||
script_prof_save(tm);
|
||
}
|
||
|
||
/*
|
||
* Take care of time spent in a child.
|
||
* Should always be called after prof_child_enter().
|
||
*/
|
||
void prof_child_exit(
|
||
proftime_T *tm // where waittime was stored
|
||
)
|
||
{
|
||
funccall_T *fc = get_current_funccal();
|
||
|
||
if (fc != NULL && fc->func->uf_profiling) {
|
||
fc->prof_child = profile_end(fc->prof_child);
|
||
// don't count waiting time
|
||
fc->prof_child = profile_sub_wait(*tm, fc->prof_child);
|
||
fc->func->uf_tm_children =
|
||
profile_add(fc->func->uf_tm_children, fc->prof_child);
|
||
fc->func->uf_tml_children =
|
||
profile_add(fc->func->uf_tml_children, fc->prof_child);
|
||
}
|
||
script_prof_restore(tm);
|
||
}
|
||
|
||
|
||
/*
|
||
* Evaluate 'foldexpr'. Returns the foldlevel, and any character preceding
|
||
* it in "*cp". Doesn't give error messages.
|
||
*/
|
||
int eval_foldexpr(char_u *arg, int *cp)
|
||
{
|
||
typval_T tv;
|
||
varnumber_T retval;
|
||
int use_sandbox = was_set_insecurely((char_u *)"foldexpr",
|
||
OPT_LOCAL);
|
||
|
||
++emsg_off;
|
||
if (use_sandbox)
|
||
++sandbox;
|
||
++textlock;
|
||
*cp = NUL;
|
||
if (eval0(arg, &tv, NULL, true) == FAIL) {
|
||
retval = 0;
|
||
} else {
|
||
// If the result is a number, just return the number.
|
||
if (tv.v_type == VAR_NUMBER) {
|
||
retval = tv.vval.v_number;
|
||
} else if (tv.v_type != VAR_STRING || tv.vval.v_string == NULL) {
|
||
retval = 0;
|
||
} else {
|
||
// If the result is a string, check if there is a non-digit before
|
||
// the number.
|
||
char_u *s = tv.vval.v_string;
|
||
if (!ascii_isdigit(*s) && *s != '-') {
|
||
*cp = *s++;
|
||
}
|
||
retval = atol((char *)s);
|
||
}
|
||
tv_clear(&tv);
|
||
}
|
||
--emsg_off;
|
||
if (use_sandbox)
|
||
--sandbox;
|
||
--textlock;
|
||
|
||
return (int)retval;
|
||
}
|
||
|
||
// ":cons[t] var = expr1" define constant
|
||
// ":cons[t] [name1, name2, ...] = expr1" define constants unpacking list
|
||
// ":cons[t] [name, ..., ; lastname] = expr" define constants unpacking list
|
||
void ex_const(exarg_T *eap)
|
||
{
|
||
ex_let_const(eap, true);
|
||
}
|
||
|
||
// Get a list of lines from a HERE document. The here document is a list of
|
||
// lines surrounded by a marker.
|
||
// cmd << {marker}
|
||
// {line1}
|
||
// {line2}
|
||
// ....
|
||
// {marker}
|
||
//
|
||
// The {marker} is a string. If the optional 'trim' word is supplied before the
|
||
// marker, then the leading indentation before the lines (matching the
|
||
// indentation in the 'cmd' line) is stripped.
|
||
// Returns a List with {lines} or NULL.
|
||
static list_T *
|
||
heredoc_get(exarg_T *eap, char_u *cmd)
|
||
{
|
||
char_u *marker;
|
||
char_u *p;
|
||
int marker_indent_len = 0;
|
||
int text_indent_len = 0;
|
||
char_u *text_indent = NULL;
|
||
|
||
if (eap->getline == NULL) {
|
||
EMSG(_("E991: cannot use =<< here"));
|
||
return NULL;
|
||
}
|
||
|
||
// Check for the optional 'trim' word before the marker
|
||
cmd = skipwhite(cmd);
|
||
if (STRNCMP(cmd, "trim", 4) == 0
|
||
&& (cmd[4] == NUL || ascii_iswhite(cmd[4]))) {
|
||
cmd = skipwhite(cmd + 4);
|
||
|
||
// Trim the indentation from all the lines in the here document.
|
||
// The amount of indentation trimmed is the same as the indentation of
|
||
// the first line after the :let command line. To find the end marker
|
||
// the indent of the :let command line is trimmed.
|
||
p = *eap->cmdlinep;
|
||
while (ascii_iswhite(*p)) {
|
||
p++;
|
||
marker_indent_len++;
|
||
}
|
||
text_indent_len = -1;
|
||
}
|
||
|
||
// The marker is the next word.
|
||
if (*cmd != NUL && *cmd != '"') {
|
||
marker = skipwhite(cmd);
|
||
p = skiptowhite(marker);
|
||
if (*skipwhite(p) != NUL && *skipwhite(p) != '"') {
|
||
EMSG(_(e_trailing));
|
||
return NULL;
|
||
}
|
||
*p = NUL;
|
||
if (islower(*marker)) {
|
||
EMSG(_("E221: Marker cannot start with lower case letter"));
|
||
return NULL;
|
||
}
|
||
} else {
|
||
EMSG(_("E172: Missing marker"));
|
||
return NULL;
|
||
}
|
||
|
||
list_T *l = tv_list_alloc(0);
|
||
for (;;) {
|
||
int mi = 0;
|
||
int ti = 0;
|
||
|
||
char_u *theline = eap->getline(NUL, eap->cookie, 0, false);
|
||
if (theline == NULL) {
|
||
EMSG2(_("E990: Missing end marker '%s'"), marker);
|
||
break;
|
||
}
|
||
|
||
// with "trim": skip the indent matching the :let line to find the
|
||
// marker
|
||
if (marker_indent_len > 0
|
||
&& STRNCMP(theline, *eap->cmdlinep, marker_indent_len) == 0) {
|
||
mi = marker_indent_len;
|
||
}
|
||
if (STRCMP(marker, theline + mi) == 0) {
|
||
xfree(theline);
|
||
break;
|
||
}
|
||
if (text_indent_len == -1 && *theline != NUL) {
|
||
// set the text indent from the first line.
|
||
p = theline;
|
||
text_indent_len = 0;
|
||
while (ascii_iswhite(*p)) {
|
||
p++;
|
||
text_indent_len++;
|
||
}
|
||
text_indent = vim_strnsave(theline, text_indent_len);
|
||
}
|
||
// with "trim": skip the indent matching the first line
|
||
if (text_indent != NULL) {
|
||
for (ti = 0; ti < text_indent_len; ti++) {
|
||
if (theline[ti] != text_indent[ti]) {
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
tv_list_append_string(l, (char *)(theline + ti), -1);
|
||
xfree(theline);
|
||
}
|
||
xfree(text_indent);
|
||
|
||
return l;
|
||
}
|
||
|
||
// ":let" list all variable values
|
||
// ":let var1 var2" list variable values
|
||
// ":let var = expr" assignment command.
|
||
// ":let var += expr" assignment command.
|
||
// ":let var -= expr" assignment command.
|
||
// ":let var *= expr" assignment command.
|
||
// ":let var /= expr" assignment command.
|
||
// ":let var %= expr" assignment command.
|
||
// ":let var .= expr" assignment command.
|
||
// ":let var ..= expr" assignment command.
|
||
// ":let [var1, var2] = expr" unpack list.
|
||
// ":let [name, ..., ; lastname] = expr" unpack list.
|
||
void ex_let(exarg_T *eap)
|
||
{
|
||
ex_let_const(eap, false);
|
||
}
|
||
|
||
static void ex_let_const(exarg_T *eap, const bool is_const)
|
||
{
|
||
char_u *arg = eap->arg;
|
||
char_u *expr = NULL;
|
||
typval_T rettv;
|
||
int i;
|
||
int var_count = 0;
|
||
int semicolon = 0;
|
||
char_u op[2];
|
||
char_u *argend;
|
||
int first = TRUE;
|
||
|
||
argend = (char_u *)skip_var_list(arg, &var_count, &semicolon);
|
||
if (argend == NULL) {
|
||
return;
|
||
}
|
||
if (argend > arg && argend[-1] == '.') { // For var.='str'.
|
||
argend--;
|
||
}
|
||
expr = skipwhite(argend);
|
||
if (*expr != '=' && !((vim_strchr((char_u *)"+-*/%.", *expr) != NULL
|
||
&& expr[1] == '=') || STRNCMP(expr, "..=", 3) == 0)) {
|
||
// ":let" without "=": list variables
|
||
if (*arg == '[') {
|
||
EMSG(_(e_invarg));
|
||
} else if (!ends_excmd(*arg)) {
|
||
// ":let var1 var2"
|
||
arg = (char_u *)list_arg_vars(eap, (const char *)arg, &first);
|
||
} else if (!eap->skip) {
|
||
// ":let"
|
||
list_glob_vars(&first);
|
||
list_buf_vars(&first);
|
||
list_win_vars(&first);
|
||
list_tab_vars(&first);
|
||
list_script_vars(&first);
|
||
list_func_vars(&first);
|
||
list_vim_vars(&first);
|
||
}
|
||
eap->nextcmd = check_nextcmd(arg);
|
||
} else if (expr[0] == '=' && expr[1] == '<' && expr[2] == '<') {
|
||
// HERE document
|
||
list_T *l = heredoc_get(eap, expr + 3);
|
||
if (l != NULL) {
|
||
tv_list_set_ret(&rettv, l);
|
||
if (!eap->skip) {
|
||
op[0] = '=';
|
||
op[1] = NUL;
|
||
(void)ex_let_vars(eap->arg, &rettv, false, semicolon, var_count,
|
||
is_const, op);
|
||
}
|
||
tv_clear(&rettv);
|
||
}
|
||
} else {
|
||
op[0] = '=';
|
||
op[1] = NUL;
|
||
if (*expr != '=') {
|
||
if (vim_strchr((char_u *)"+-*/%.", *expr) != NULL) {
|
||
op[0] = *expr; // +=, -=, *=, /=, %= or .=
|
||
if (expr[0] == '.' && expr[1] == '.') { // ..=
|
||
expr++;
|
||
}
|
||
}
|
||
expr = skipwhite(expr + 2);
|
||
} else {
|
||
expr = skipwhite(expr + 1);
|
||
}
|
||
|
||
if (eap->skip)
|
||
++emsg_skip;
|
||
i = eval0(expr, &rettv, &eap->nextcmd, !eap->skip);
|
||
if (eap->skip) {
|
||
if (i != FAIL) {
|
||
tv_clear(&rettv);
|
||
}
|
||
emsg_skip--;
|
||
} else if (i != FAIL) {
|
||
(void)ex_let_vars(eap->arg, &rettv, false, semicolon, var_count,
|
||
is_const, op);
|
||
tv_clear(&rettv);
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Assign the typevalue "tv" to the variable or variables at "arg_start".
|
||
* Handles both "var" with any type and "[var, var; var]" with a list type.
|
||
* When "nextchars" is not NULL it points to a string with characters that
|
||
* must appear after the variable(s). Use "+", "-" or "." for add, subtract
|
||
* or concatenate.
|
||
* Returns OK or FAIL;
|
||
*/
|
||
static int
|
||
ex_let_vars(
|
||
char_u *arg_start,
|
||
typval_T *tv,
|
||
int copy, // copy values from "tv", don't move
|
||
int semicolon, // from skip_var_list()
|
||
int var_count, // from skip_var_list()
|
||
int is_const, // lock variables for :const
|
||
char_u *nextchars
|
||
)
|
||
{
|
||
char_u *arg = arg_start;
|
||
typval_T ltv;
|
||
|
||
if (*arg != '[') {
|
||
/*
|
||
* ":let var = expr" or ":for var in list"
|
||
*/
|
||
if (ex_let_one(arg, tv, copy, is_const, nextchars, nextchars) == NULL) {
|
||
return FAIL;
|
||
}
|
||
return OK;
|
||
}
|
||
|
||
// ":let [v1, v2] = list" or ":for [v1, v2] in listlist"
|
||
if (tv->v_type != VAR_LIST) {
|
||
EMSG(_(e_listreq));
|
||
return FAIL;
|
||
}
|
||
list_T *const l = tv->vval.v_list;
|
||
|
||
const int len = tv_list_len(l);
|
||
if (semicolon == 0 && var_count < len) {
|
||
EMSG(_("E687: Less targets than List items"));
|
||
return FAIL;
|
||
}
|
||
if (var_count - semicolon > len) {
|
||
EMSG(_("E688: More targets than List items"));
|
||
return FAIL;
|
||
}
|
||
// List l may actually be NULL, but it should fail with E688 or even earlier
|
||
// if you try to do ":let [] = v:_null_list".
|
||
assert(l != NULL);
|
||
|
||
listitem_T *item = tv_list_first(l);
|
||
size_t rest_len = tv_list_len(l);
|
||
while (*arg != ']') {
|
||
arg = skipwhite(arg + 1);
|
||
arg = ex_let_one(arg, TV_LIST_ITEM_TV(item), true, is_const,
|
||
(const char_u *)",;]", nextchars);
|
||
if (arg == NULL) {
|
||
return FAIL;
|
||
}
|
||
rest_len--;
|
||
|
||
item = TV_LIST_ITEM_NEXT(l, item);
|
||
arg = skipwhite(arg);
|
||
if (*arg == ';') {
|
||
/* Put the rest of the list (may be empty) in the var after ';'.
|
||
* Create a new list for this. */
|
||
list_T *const rest_list = tv_list_alloc(rest_len);
|
||
while (item != NULL) {
|
||
tv_list_append_tv(rest_list, TV_LIST_ITEM_TV(item));
|
||
item = TV_LIST_ITEM_NEXT(l, item);
|
||
}
|
||
|
||
ltv.v_type = VAR_LIST;
|
||
ltv.v_lock = VAR_UNLOCKED;
|
||
ltv.vval.v_list = rest_list;
|
||
tv_list_ref(rest_list);
|
||
|
||
arg = ex_let_one(skipwhite(arg + 1), <v, false, is_const,
|
||
(char_u *)"]", nextchars);
|
||
tv_clear(<v);
|
||
if (arg == NULL) {
|
||
return FAIL;
|
||
}
|
||
break;
|
||
} else if (*arg != ',' && *arg != ']') {
|
||
internal_error("ex_let_vars()");
|
||
return FAIL;
|
||
}
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
/*
|
||
* Skip over assignable variable "var" or list of variables "[var, var]".
|
||
* Used for ":let varvar = expr" and ":for varvar in expr".
|
||
* For "[var, var]" increment "*var_count" for each variable.
|
||
* for "[var, var; var]" set "semicolon".
|
||
* Return NULL for an error.
|
||
*/
|
||
static const char_u *skip_var_list(const char_u *arg, int *var_count,
|
||
int *semicolon)
|
||
{
|
||
const char_u *p;
|
||
const char_u *s;
|
||
|
||
if (*arg == '[') {
|
||
// "[var, var]": find the matching ']'.
|
||
p = arg;
|
||
for (;; ) {
|
||
p = skipwhite(p + 1); // skip whites after '[', ';' or ','
|
||
s = skip_var_one(p);
|
||
if (s == p) {
|
||
EMSG2(_(e_invarg2), p);
|
||
return NULL;
|
||
}
|
||
++*var_count;
|
||
|
||
p = skipwhite(s);
|
||
if (*p == ']')
|
||
break;
|
||
else if (*p == ';') {
|
||
if (*semicolon == 1) {
|
||
EMSG(_("Double ; in list of variables"));
|
||
return NULL;
|
||
}
|
||
*semicolon = 1;
|
||
} else if (*p != ',') {
|
||
EMSG2(_(e_invarg2), p);
|
||
return NULL;
|
||
}
|
||
}
|
||
return p + 1;
|
||
} else
|
||
return skip_var_one(arg);
|
||
}
|
||
|
||
/*
|
||
* Skip one (assignable) variable name, including @r, $VAR, &option, d.key,
|
||
* l[idx].
|
||
*/
|
||
static const char_u *skip_var_one(const char_u *arg)
|
||
{
|
||
if (*arg == '@' && arg[1] != NUL)
|
||
return arg + 2;
|
||
return find_name_end(*arg == '$' || *arg == '&' ? arg + 1 : arg,
|
||
NULL, NULL, FNE_INCL_BR | FNE_CHECK_START);
|
||
}
|
||
|
||
/*
|
||
* List variables for hashtab "ht" with prefix "prefix".
|
||
* If "empty" is TRUE also list NULL strings as empty strings.
|
||
*/
|
||
void list_hashtable_vars(hashtab_T *ht, const char *prefix, int empty,
|
||
int *first)
|
||
{
|
||
hashitem_T *hi;
|
||
dictitem_T *di;
|
||
int todo;
|
||
|
||
todo = (int)ht->ht_used;
|
||
for (hi = ht->ht_array; todo > 0 && !got_int; ++hi) {
|
||
if (!HASHITEM_EMPTY(hi)) {
|
||
todo--;
|
||
di = TV_DICT_HI2DI(hi);
|
||
char buf[IOSIZE];
|
||
|
||
// apply :filter /pat/ to variable name
|
||
xstrlcpy(buf, prefix, IOSIZE - 1);
|
||
xstrlcat(buf, (char *)di->di_key, IOSIZE);
|
||
if (message_filtered((char_u *)buf)) {
|
||
continue;
|
||
}
|
||
|
||
if (empty || di->di_tv.v_type != VAR_STRING
|
||
|| di->di_tv.vval.v_string != NULL) {
|
||
list_one_var(di, prefix, first);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
* List global variables.
|
||
*/
|
||
static void list_glob_vars(int *first)
|
||
{
|
||
list_hashtable_vars(&globvarht, "", true, first);
|
||
}
|
||
|
||
/*
|
||
* List buffer variables.
|
||
*/
|
||
static void list_buf_vars(int *first)
|
||
{
|
||
list_hashtable_vars(&curbuf->b_vars->dv_hashtab, "b:", true, first);
|
||
}
|
||
|
||
/*
|
||
* List window variables.
|
||
*/
|
||
static void list_win_vars(int *first)
|
||
{
|
||
list_hashtable_vars(&curwin->w_vars->dv_hashtab, "w:", true, first);
|
||
}
|
||
|
||
/*
|
||
* List tab page variables.
|
||
*/
|
||
static void list_tab_vars(int *first)
|
||
{
|
||
list_hashtable_vars(&curtab->tp_vars->dv_hashtab, "t:", true, first);
|
||
}
|
||
|
||
/*
|
||
* List Vim variables.
|
||
*/
|
||
static void list_vim_vars(int *first)
|
||
{
|
||
list_hashtable_vars(&vimvarht, "v:", false, first);
|
||
}
|
||
|
||
// List script-local variables, if there is a script.
|
||
static void list_script_vars(int *first)
|
||
{
|
||
if (current_sctx.sc_sid > 0 && current_sctx.sc_sid <= ga_scripts.ga_len) {
|
||
list_hashtable_vars(&SCRIPT_VARS(current_sctx.sc_sid), "s:", false, first);
|
||
}
|
||
}
|
||
|
||
/*
|
||
* List variables in "arg".
|
||
*/
|
||
static const char *list_arg_vars(exarg_T *eap, const char *arg, int *first)
|
||
{
|
||
int error = FALSE;
|
||
int len;
|
||
const char *name;
|
||
const char *name_start;
|
||
typval_T tv;
|
||
|
||
while (!ends_excmd(*arg) && !got_int) {
|
||
if (error || eap->skip) {
|
||
arg = (const char *)find_name_end((char_u *)arg, NULL, NULL,
|
||
FNE_INCL_BR | FNE_CHECK_START);
|
||
if (!ascii_iswhite(*arg) && !ends_excmd(*arg)) {
|
||
emsg_severe = TRUE;
|
||
EMSG(_(e_trailing));
|
||
break;
|
||
}
|
||
} else {
|
||
// get_name_len() takes care of expanding curly braces
|
||
name_start = name = arg;
|
||
char *tofree;
|
||
len = get_name_len(&arg, &tofree, true, true);
|
||
if (len <= 0) {
|
||
/* This is mainly to keep test 49 working: when expanding
|
||
* curly braces fails overrule the exception error message. */
|
||
if (len < 0 && !aborting()) {
|
||
emsg_severe = TRUE;
|
||
EMSG2(_(e_invarg2), arg);
|
||
break;
|
||
}
|
||
error = TRUE;
|
||
} else {
|
||
if (tofree != NULL) {
|
||
name = tofree;
|
||
}
|
||
if (get_var_tv((const char *)name, len, &tv, NULL, true, false)
|
||
== FAIL) {
|
||
error = true;
|
||
} else {
|
||
// handle d.key, l[idx], f(expr)
|
||
const char *const arg_subsc = arg;
|
||
if (handle_subscript(&arg, &tv, true, true) == FAIL) {
|
||
error = true;
|
||
} else {
|
||
if (arg == arg_subsc && len == 2 && name[1] == ':') {
|
||
switch (*name) {
|
||
case 'g': list_glob_vars(first); break;
|
||
case 'b': list_buf_vars(first); break;
|
||
case 'w': list_win_vars(first); break;
|
||
case 't': list_tab_vars(first); break;
|
||
case 'v': list_vim_vars(first); break;
|
||
case 's': list_script_vars(first); break;
|
||
case 'l': list_func_vars(first); break;
|
||
default:
|
||
EMSG2(_("E738: Can't list variables for %s"), name);
|
||
}
|
||
} else {
|
||
char *const s = encode_tv2echo(&tv, NULL);
|
||
const char *const used_name = (arg == arg_subsc
|
||
? name
|
||
: name_start);
|
||
const ptrdiff_t name_size = (used_name == tofree
|
||
? (ptrdiff_t)strlen(used_name)
|
||
: (arg - used_name));
|
||
list_one_var_a("", used_name, name_size,
|
||
tv.v_type, s == NULL ? "" : s, first);
|
||
xfree(s);
|
||
}
|
||
tv_clear(&tv);
|
||
}
|
||
}
|
||
}
|
||
|
||
xfree(tofree);
|
||
}
|
||
|
||
arg = (const char *)skipwhite((const char_u *)arg);
|
||
}
|
||
|
||
return arg;
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/ex_cmds
|
||
|
||
/// Set one item of `:let var = expr` or `:let [v1, v2] = list` to its value
|
||
///
|
||
/// @param[in] arg Start of the variable name.
|
||
/// @param[in] tv Value to assign to the variable.
|
||
/// @param[in] copy If true, copy value from `tv`.
|
||
/// @param[in] endchars Valid characters after variable name or NULL.
|
||
/// @param[in] op Operation performed: *op is `+`, `-`, `.` for `+=`, etc.
|
||
/// NULL for `=`.
|
||
///
|
||
/// @return a pointer to the char just after the var name or NULL in case of
|
||
/// error.
|
||
static char_u *ex_let_one(char_u *arg, typval_T *const tv,
|
||
const bool copy, const bool is_const,
|
||
const char_u *const endchars, const char_u *const op)
|
||
FUNC_ATTR_NONNULL_ARG(1, 2) FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
char_u *arg_end = NULL;
|
||
int len;
|
||
int opt_flags;
|
||
char_u *tofree = NULL;
|
||
|
||
/*
|
||
* ":let $VAR = expr": Set environment variable.
|
||
*/
|
||
if (*arg == '$') {
|
||
if (is_const) {
|
||
EMSG(_("E996: Cannot lock an environment variable"));
|
||
return NULL;
|
||
}
|
||
// Find the end of the name.
|
||
arg++;
|
||
char *name = (char *)arg;
|
||
len = get_env_len((const char_u **)&arg);
|
||
if (len == 0) {
|
||
EMSG2(_(e_invarg2), name - 1);
|
||
} else {
|
||
if (op != NULL && vim_strchr((char_u *)"+-*/%", *op) != NULL) {
|
||
EMSG2(_(e_letwrong), op);
|
||
} else if (endchars != NULL
|
||
&& vim_strchr(endchars, *skipwhite(arg)) == NULL) {
|
||
EMSG(_(e_letunexp));
|
||
} else if (!check_secure()) {
|
||
const char c1 = name[len];
|
||
name[len] = NUL;
|
||
const char *p = tv_get_string_chk(tv);
|
||
if (p != NULL && op != NULL && *op == '.') {
|
||
char *s = vim_getenv(name);
|
||
|
||
if (s != NULL) {
|
||
tofree = concat_str((const char_u *)s, (const char_u *)p);
|
||
p = (const char *)tofree;
|
||
xfree(s);
|
||
}
|
||
}
|
||
if (p != NULL) {
|
||
os_setenv(name, p, 1);
|
||
if (STRICMP(name, "HOME") == 0) {
|
||
init_homedir();
|
||
} else if (didset_vim && STRICMP(name, "VIM") == 0) {
|
||
didset_vim = false;
|
||
} else if (didset_vimruntime
|
||
&& STRICMP(name, "VIMRUNTIME") == 0) {
|
||
didset_vimruntime = false;
|
||
}
|
||
arg_end = arg;
|
||
}
|
||
name[len] = c1;
|
||
xfree(tofree);
|
||
}
|
||
}
|
||
// ":let &option = expr": Set option value.
|
||
// ":let &l:option = expr": Set local option value.
|
||
// ":let &g:option = expr": Set global option value.
|
||
} else if (*arg == '&') {
|
||
if (is_const) {
|
||
EMSG(_("E996: Cannot lock an option"));
|
||
return NULL;
|
||
}
|
||
// Find the end of the name.
|
||
char *const p = (char *)find_option_end((const char **)&arg, &opt_flags);
|
||
if (p == NULL
|
||
|| (endchars != NULL
|
||
&& vim_strchr(endchars, *skipwhite((const char_u *)p)) == NULL)) {
|
||
EMSG(_(e_letunexp));
|
||
} else {
|
||
int opt_type;
|
||
long numval;
|
||
char *stringval = NULL;
|
||
const char *s = NULL;
|
||
|
||
const char c1 = *p;
|
||
*p = NUL;
|
||
|
||
varnumber_T n = tv_get_number(tv);
|
||
if (tv->v_type != VAR_BOOL && tv->v_type != VAR_SPECIAL) {
|
||
s = tv_get_string_chk(tv); // != NULL if number or string.
|
||
}
|
||
if (s != NULL && op != NULL && *op != '=') {
|
||
opt_type = get_option_value(arg, &numval, (char_u **)&stringval,
|
||
opt_flags);
|
||
if ((opt_type == 1 && *op == '.')
|
||
|| (opt_type == 0 && *op != '.')) {
|
||
EMSG2(_(e_letwrong), op);
|
||
s = NULL; // don't set the value
|
||
} else {
|
||
if (opt_type == 1) { // number
|
||
switch (*op) {
|
||
case '+': n = numval + n; break;
|
||
case '-': n = numval - n; break;
|
||
case '*': n = numval * n; break;
|
||
case '/': n = num_divide(numval, n); break;
|
||
case '%': n = num_modulus(numval, n); break;
|
||
}
|
||
} else if (opt_type == 0 && stringval != NULL) { // string
|
||
char *const oldstringval = stringval;
|
||
stringval = (char *)concat_str((const char_u *)stringval,
|
||
(const char_u *)s);
|
||
xfree(oldstringval);
|
||
s = stringval;
|
||
}
|
||
}
|
||
}
|
||
if (s != NULL || tv->v_type == VAR_BOOL
|
||
|| tv->v_type == VAR_SPECIAL) {
|
||
set_option_value((const char *)arg, n, s, opt_flags);
|
||
arg_end = (char_u *)p;
|
||
}
|
||
*p = c1;
|
||
xfree(stringval);
|
||
}
|
||
// ":let @r = expr": Set register contents.
|
||
} else if (*arg == '@') {
|
||
if (is_const) {
|
||
EMSG(_("E996: Cannot lock a register"));
|
||
return NULL;
|
||
}
|
||
arg++;
|
||
if (op != NULL && vim_strchr((char_u *)"+-*/%", *op) != NULL) {
|
||
emsgf(_(e_letwrong), op);
|
||
} else if (endchars != NULL
|
||
&& vim_strchr(endchars, *skipwhite(arg + 1)) == NULL) {
|
||
EMSG(_(e_letunexp));
|
||
} else {
|
||
char_u *s;
|
||
|
||
char_u *ptofree = NULL;
|
||
const char *p = tv_get_string_chk(tv);
|
||
if (p != NULL && op != NULL && *op == '.') {
|
||
s = get_reg_contents(*arg == '@' ? '"' : *arg, kGRegExprSrc);
|
||
if (s != NULL) {
|
||
ptofree = concat_str(s, (const char_u *)p);
|
||
p = (const char *)ptofree;
|
||
xfree(s);
|
||
}
|
||
}
|
||
if (p != NULL) {
|
||
write_reg_contents(*arg == '@' ? '"' : *arg,
|
||
(const char_u *)p, STRLEN(p), false);
|
||
arg_end = arg + 1;
|
||
}
|
||
xfree(ptofree);
|
||
}
|
||
}
|
||
/*
|
||
* ":let var = expr": Set internal variable.
|
||
* ":let {expr} = expr": Idem, name made with curly braces
|
||
*/
|
||
else if (eval_isnamec1(*arg) || *arg == '{') {
|
||
lval_T lv;
|
||
|
||
char_u *const p = get_lval(arg, tv, &lv, false, false, 0, FNE_CHECK_START);
|
||
if (p != NULL && lv.ll_name != NULL) {
|
||
if (endchars != NULL && vim_strchr(endchars, *skipwhite(p)) == NULL) {
|
||
EMSG(_(e_letunexp));
|
||
} else {
|
||
set_var_lval(&lv, p, tv, copy, is_const, op);
|
||
arg_end = p;
|
||
}
|
||
}
|
||
clear_lval(&lv);
|
||
} else
|
||
EMSG2(_(e_invarg2), arg);
|
||
|
||
return arg_end;
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/executor
|
||
|
||
/// Get an lvalue
|
||
///
|
||
/// Lvalue may be
|
||
/// - variable: "name", "na{me}"
|
||
/// - dictionary item: "dict.key", "dict['key']"
|
||
/// - list item: "list[expr]"
|
||
/// - list slice: "list[expr:expr]"
|
||
///
|
||
/// Indexing only works if trying to use it with an existing List or Dictionary.
|
||
///
|
||
/// @param[in] name Name to parse.
|
||
/// @param rettv Pointer to the value to be assigned or NULL.
|
||
/// @param[out] lp Lvalue definition. When evaluation errors occur `->ll_name`
|
||
/// is NULL.
|
||
/// @param[in] unlet True if using `:unlet`. This results in slightly
|
||
/// different behaviour when something is wrong; must end in
|
||
/// space or cmd separator.
|
||
/// @param[in] skip True when skipping.
|
||
/// @param[in] flags @see GetLvalFlags.
|
||
/// @param[in] fne_flags Flags for find_name_end().
|
||
///
|
||
/// @return A pointer to just after the name, including indexes. Returns NULL
|
||
/// for a parsing error, but it is still needed to free items in lp.
|
||
char_u *get_lval(char_u *const name, typval_T *const rettv,
|
||
lval_T *const lp, const bool unlet, const bool skip,
|
||
const int flags, const int fne_flags)
|
||
FUNC_ATTR_NONNULL_ARG(1, 3)
|
||
{
|
||
dictitem_T *v;
|
||
typval_T var1;
|
||
typval_T var2;
|
||
int empty1 = FALSE;
|
||
listitem_T *ni;
|
||
hashtab_T *ht;
|
||
int quiet = flags & GLV_QUIET;
|
||
|
||
// Clear everything in "lp".
|
||
memset(lp, 0, sizeof(lval_T));
|
||
|
||
if (skip) {
|
||
// When skipping just find the end of the name.
|
||
lp->ll_name = (const char *)name;
|
||
return (char_u *)find_name_end((const char_u *)name, NULL, NULL,
|
||
FNE_INCL_BR | fne_flags);
|
||
}
|
||
|
||
// Find the end of the name.
|
||
char_u *expr_start;
|
||
char_u *expr_end;
|
||
char_u *p = (char_u *)find_name_end(name,
|
||
(const char_u **)&expr_start,
|
||
(const char_u **)&expr_end,
|
||
fne_flags);
|
||
if (expr_start != NULL) {
|
||
// Don't expand the name when we already know there is an error.
|
||
if (unlet && !ascii_iswhite(*p) && !ends_excmd(*p)
|
||
&& *p != '[' && *p != '.') {
|
||
EMSG(_(e_trailing));
|
||
return NULL;
|
||
}
|
||
|
||
lp->ll_exp_name = (char *)make_expanded_name(name, expr_start, expr_end,
|
||
(char_u *)p);
|
||
lp->ll_name = lp->ll_exp_name;
|
||
if (lp->ll_exp_name == NULL) {
|
||
/* Report an invalid expression in braces, unless the
|
||
* expression evaluation has been cancelled due to an
|
||
* aborting error, an interrupt, or an exception. */
|
||
if (!aborting() && !quiet) {
|
||
emsg_severe = TRUE;
|
||
EMSG2(_(e_invarg2), name);
|
||
return NULL;
|
||
}
|
||
lp->ll_name_len = 0;
|
||
} else {
|
||
lp->ll_name_len = strlen(lp->ll_name);
|
||
}
|
||
} else {
|
||
lp->ll_name = (const char *)name;
|
||
lp->ll_name_len = (size_t)((const char *)p - lp->ll_name);
|
||
}
|
||
|
||
// Without [idx] or .key we are done.
|
||
if ((*p != '[' && *p != '.') || lp->ll_name == NULL) {
|
||
return p;
|
||
}
|
||
|
||
// Only pass &ht when we would write to the variable, it prevents autoload
|
||
// as well.
|
||
v = find_var(lp->ll_name, lp->ll_name_len,
|
||
(flags & GLV_READ_ONLY) ? NULL : &ht,
|
||
flags & GLV_NO_AUTOLOAD);
|
||
if (v == NULL && !quiet) {
|
||
emsgf(_("E121: Undefined variable: %.*s"),
|
||
(int)lp->ll_name_len, lp->ll_name);
|
||
}
|
||
if (v == NULL) {
|
||
return NULL;
|
||
}
|
||
|
||
/*
|
||
* Loop until no more [idx] or .key is following.
|
||
*/
|
||
lp->ll_tv = &v->di_tv;
|
||
var1.v_type = VAR_UNKNOWN;
|
||
var2.v_type = VAR_UNKNOWN;
|
||
while (*p == '[' || (*p == '.' && lp->ll_tv->v_type == VAR_DICT)) {
|
||
if (!(lp->ll_tv->v_type == VAR_LIST && lp->ll_tv->vval.v_list != NULL)
|
||
&& !(lp->ll_tv->v_type == VAR_DICT
|
||
&& lp->ll_tv->vval.v_dict != NULL)) {
|
||
if (!quiet)
|
||
EMSG(_("E689: Can only index a List or Dictionary"));
|
||
return NULL;
|
||
}
|
||
if (lp->ll_range) {
|
||
if (!quiet)
|
||
EMSG(_("E708: [:] must come last"));
|
||
return NULL;
|
||
}
|
||
|
||
int len = -1;
|
||
char_u *key = NULL;
|
||
if (*p == '.') {
|
||
key = p + 1;
|
||
for (len = 0; ASCII_ISALNUM(key[len]) || key[len] == '_'; len++) {
|
||
}
|
||
if (len == 0) {
|
||
if (!quiet) {
|
||
EMSG(_("E713: Cannot use empty key after ."));
|
||
}
|
||
return NULL;
|
||
}
|
||
p = key + len;
|
||
} else {
|
||
// Get the index [expr] or the first index [expr: ].
|
||
p = skipwhite(p + 1);
|
||
if (*p == ':') {
|
||
empty1 = true;
|
||
} else {
|
||
empty1 = false;
|
||
if (eval1(&p, &var1, true) == FAIL) { // Recursive!
|
||
return NULL;
|
||
}
|
||
if (!tv_check_str(&var1)) {
|
||
// Not a number or string.
|
||
tv_clear(&var1);
|
||
return NULL;
|
||
}
|
||
}
|
||
|
||
// Optionally get the second index [ :expr].
|
||
if (*p == ':') {
|
||
if (lp->ll_tv->v_type == VAR_DICT) {
|
||
if (!quiet) {
|
||
EMSG(_(e_dictrange));
|
||
}
|
||
tv_clear(&var1);
|
||
return NULL;
|
||
}
|
||
if (rettv != NULL && (rettv->v_type != VAR_LIST
|
||
|| rettv->vval.v_list == NULL)) {
|
||
if (!quiet) {
|
||
EMSG(_("E709: [:] requires a List value"));
|
||
}
|
||
tv_clear(&var1);
|
||
return NULL;
|
||
}
|
||
p = skipwhite(p + 1);
|
||
if (*p == ']') {
|
||
lp->ll_empty2 = true;
|
||
} else {
|
||
lp->ll_empty2 = false;
|
||
if (eval1(&p, &var2, true) == FAIL) { // Recursive!
|
||
tv_clear(&var1);
|
||
return NULL;
|
||
}
|
||
if (!tv_check_str(&var2)) {
|
||
// Not a number or string.
|
||
tv_clear(&var1);
|
||
tv_clear(&var2);
|
||
return NULL;
|
||
}
|
||
}
|
||
lp->ll_range = TRUE;
|
||
} else
|
||
lp->ll_range = FALSE;
|
||
|
||
if (*p != ']') {
|
||
if (!quiet) {
|
||
EMSG(_(e_missbrac));
|
||
}
|
||
tv_clear(&var1);
|
||
tv_clear(&var2);
|
||
return NULL;
|
||
}
|
||
|
||
// Skip to past ']'.
|
||
p++;
|
||
}
|
||
|
||
if (lp->ll_tv->v_type == VAR_DICT) {
|
||
if (len == -1) {
|
||
// "[key]": get key from "var1"
|
||
key = (char_u *)tv_get_string(&var1); // is number or string
|
||
}
|
||
lp->ll_list = NULL;
|
||
lp->ll_dict = lp->ll_tv->vval.v_dict;
|
||
lp->ll_di = tv_dict_find(lp->ll_dict, (const char *)key, len);
|
||
|
||
/* When assigning to a scope dictionary check that a function and
|
||
* variable name is valid (only variable name unless it is l: or
|
||
* g: dictionary). Disallow overwriting a builtin function. */
|
||
if (rettv != NULL && lp->ll_dict->dv_scope != 0) {
|
||
int prevval;
|
||
int wrong;
|
||
|
||
if (len != -1) {
|
||
prevval = key[len];
|
||
key[len] = NUL;
|
||
} else {
|
||
prevval = 0; // Avoid compiler warning.
|
||
}
|
||
wrong = ((lp->ll_dict->dv_scope == VAR_DEF_SCOPE
|
||
&& tv_is_func(*rettv)
|
||
&& !var_check_func_name((const char *)key, lp->ll_di == NULL))
|
||
|| !valid_varname((const char *)key));
|
||
if (len != -1) {
|
||
key[len] = prevval;
|
||
}
|
||
if (wrong) {
|
||
return NULL;
|
||
}
|
||
}
|
||
|
||
if (lp->ll_di != NULL && tv_is_luafunc(&lp->ll_di->di_tv)
|
||
&& len == -1 && rettv == NULL) {
|
||
tv_clear(&var1);
|
||
EMSG2(e_illvar, "v:['lua']");
|
||
return NULL;
|
||
}
|
||
|
||
if (lp->ll_di == NULL) {
|
||
// Can't add "v:" or "a:" variable.
|
||
if (lp->ll_dict == &vimvardict
|
||
|| &lp->ll_dict->dv_hashtab == get_funccal_args_ht()) {
|
||
EMSG2(_(e_illvar), name);
|
||
tv_clear(&var1);
|
||
return NULL;
|
||
}
|
||
|
||
// Key does not exist in dict: may need to add it.
|
||
if (*p == '[' || *p == '.' || unlet) {
|
||
if (!quiet) {
|
||
emsgf(_(e_dictkey), key);
|
||
}
|
||
tv_clear(&var1);
|
||
return NULL;
|
||
}
|
||
if (len == -1) {
|
||
lp->ll_newkey = vim_strsave(key);
|
||
} else {
|
||
lp->ll_newkey = vim_strnsave(key, len);
|
||
}
|
||
tv_clear(&var1);
|
||
break;
|
||
// existing variable, need to check if it can be changed
|
||
} else if (!(flags & GLV_READ_ONLY) && var_check_ro(lp->ll_di->di_flags,
|
||
(const char *)name,
|
||
(size_t)(p - name))) {
|
||
tv_clear(&var1);
|
||
return NULL;
|
||
}
|
||
|
||
tv_clear(&var1);
|
||
lp->ll_tv = &lp->ll_di->di_tv;
|
||
} else {
|
||
// Get the number and item for the only or first index of the List.
|
||
if (empty1) {
|
||
lp->ll_n1 = 0;
|
||
} else {
|
||
// Is number or string.
|
||
lp->ll_n1 = (long)tv_get_number(&var1);
|
||
}
|
||
tv_clear(&var1);
|
||
|
||
lp->ll_dict = NULL;
|
||
lp->ll_list = lp->ll_tv->vval.v_list;
|
||
lp->ll_li = tv_list_find(lp->ll_list, lp->ll_n1);
|
||
if (lp->ll_li == NULL) {
|
||
if (lp->ll_n1 < 0) {
|
||
lp->ll_n1 = 0;
|
||
lp->ll_li = tv_list_find(lp->ll_list, lp->ll_n1);
|
||
}
|
||
}
|
||
if (lp->ll_li == NULL) {
|
||
tv_clear(&var2);
|
||
if (!quiet) {
|
||
EMSGN(_(e_listidx), lp->ll_n1);
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
/*
|
||
* May need to find the item or absolute index for the second
|
||
* index of a range.
|
||
* When no index given: "lp->ll_empty2" is TRUE.
|
||
* Otherwise "lp->ll_n2" is set to the second index.
|
||
*/
|
||
if (lp->ll_range && !lp->ll_empty2) {
|
||
lp->ll_n2 = (long)tv_get_number(&var2); // Is number or string.
|
||
tv_clear(&var2);
|
||
if (lp->ll_n2 < 0) {
|
||
ni = tv_list_find(lp->ll_list, lp->ll_n2);
|
||
if (ni == NULL) {
|
||
if (!quiet)
|
||
EMSGN(_(e_listidx), lp->ll_n2);
|
||
return NULL;
|
||
}
|
||
lp->ll_n2 = tv_list_idx_of_item(lp->ll_list, ni);
|
||
}
|
||
|
||
// Check that lp->ll_n2 isn't before lp->ll_n1.
|
||
if (lp->ll_n1 < 0) {
|
||
lp->ll_n1 = tv_list_idx_of_item(lp->ll_list, lp->ll_li);
|
||
}
|
||
if (lp->ll_n2 < lp->ll_n1) {
|
||
if (!quiet) {
|
||
EMSGN(_(e_listidx), lp->ll_n2);
|
||
}
|
||
return NULL;
|
||
}
|
||
}
|
||
|
||
lp->ll_tv = TV_LIST_ITEM_TV(lp->ll_li);
|
||
}
|
||
}
|
||
|
||
tv_clear(&var1);
|
||
return p;
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/executor
|
||
|
||
/*
|
||
* Clear lval "lp" that was filled by get_lval().
|
||
*/
|
||
void clear_lval(lval_T *lp)
|
||
{
|
||
xfree(lp->ll_exp_name);
|
||
xfree(lp->ll_newkey);
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/executor
|
||
|
||
/*
|
||
* Set a variable that was parsed by get_lval() to "rettv".
|
||
* "endp" points to just after the parsed name.
|
||
* "op" is NULL, "+" for "+=", "-" for "-=", "*" for "*=", "/" for "/=",
|
||
* "%" for "%=", "." for ".=" or "=" for "=".
|
||
*/
|
||
static void set_var_lval(lval_T *lp, char_u *endp, typval_T *rettv,
|
||
int copy, const bool is_const, const char_u *op)
|
||
{
|
||
int cc;
|
||
listitem_T *ri;
|
||
dictitem_T *di;
|
||
|
||
if (lp->ll_tv == NULL) {
|
||
cc = *endp;
|
||
*endp = NUL;
|
||
if (op != NULL && *op != '=') {
|
||
typval_T tv;
|
||
|
||
if (is_const) {
|
||
EMSG(_(e_cannot_mod));
|
||
*endp = cc;
|
||
return;
|
||
}
|
||
|
||
// handle +=, -=, *=, /=, %= and .=
|
||
di = NULL;
|
||
if (get_var_tv((const char *)lp->ll_name, (int)STRLEN(lp->ll_name),
|
||
&tv, &di, true, false) == OK) {
|
||
if ((di == NULL
|
||
|| (!var_check_ro(di->di_flags, (const char *)lp->ll_name,
|
||
TV_CSTRING)
|
||
&& !tv_check_lock(di->di_tv.v_lock, (const char *)lp->ll_name,
|
||
TV_CSTRING)))
|
||
&& eexe_mod_op(&tv, rettv, (const char *)op) == OK) {
|
||
set_var(lp->ll_name, lp->ll_name_len, &tv, false);
|
||
}
|
||
tv_clear(&tv);
|
||
}
|
||
} else {
|
||
set_var_const(lp->ll_name, lp->ll_name_len, rettv, copy, is_const);
|
||
}
|
||
*endp = cc;
|
||
} else if (tv_check_lock(lp->ll_newkey == NULL
|
||
? lp->ll_tv->v_lock
|
||
: lp->ll_tv->vval.v_dict->dv_lock,
|
||
(const char *)lp->ll_name, TV_CSTRING)) {
|
||
} else if (lp->ll_range) {
|
||
listitem_T *ll_li = lp->ll_li;
|
||
int ll_n1 = lp->ll_n1;
|
||
|
||
if (is_const) {
|
||
EMSG(_("E996: Cannot lock a range"));
|
||
return;
|
||
}
|
||
|
||
// Check whether any of the list items is locked
|
||
for (ri = tv_list_first(rettv->vval.v_list);
|
||
ri != NULL && ll_li != NULL; ) {
|
||
if (tv_check_lock(TV_LIST_ITEM_TV(ll_li)->v_lock,
|
||
(const char *)lp->ll_name,
|
||
TV_CSTRING)) {
|
||
return;
|
||
}
|
||
ri = TV_LIST_ITEM_NEXT(rettv->vval.v_list, ri);
|
||
if (ri == NULL || (!lp->ll_empty2 && lp->ll_n2 == ll_n1)) {
|
||
break;
|
||
}
|
||
ll_li = TV_LIST_ITEM_NEXT(lp->ll_list, ll_li);
|
||
ll_n1++;
|
||
}
|
||
|
||
/*
|
||
* Assign the List values to the list items.
|
||
*/
|
||
for (ri = tv_list_first(rettv->vval.v_list); ri != NULL; ) {
|
||
if (op != NULL && *op != '=') {
|
||
eexe_mod_op(TV_LIST_ITEM_TV(lp->ll_li), TV_LIST_ITEM_TV(ri),
|
||
(const char *)op);
|
||
} else {
|
||
tv_clear(TV_LIST_ITEM_TV(lp->ll_li));
|
||
tv_copy(TV_LIST_ITEM_TV(ri), TV_LIST_ITEM_TV(lp->ll_li));
|
||
}
|
||
ri = TV_LIST_ITEM_NEXT(rettv->vval.v_list, ri);
|
||
if (ri == NULL || (!lp->ll_empty2 && lp->ll_n2 == lp->ll_n1)) {
|
||
break;
|
||
}
|
||
assert(lp->ll_li != NULL);
|
||
if (TV_LIST_ITEM_NEXT(lp->ll_list, lp->ll_li) == NULL) {
|
||
// Need to add an empty item.
|
||
tv_list_append_number(lp->ll_list, 0);
|
||
// ll_li may have become invalid after append, don’t use it.
|
||
lp->ll_li = tv_list_last(lp->ll_list); // Valid again.
|
||
} else {
|
||
lp->ll_li = TV_LIST_ITEM_NEXT(lp->ll_list, lp->ll_li);
|
||
}
|
||
lp->ll_n1++;
|
||
}
|
||
if (ri != NULL) {
|
||
EMSG(_("E710: List value has more items than target"));
|
||
} else if (lp->ll_empty2
|
||
? (lp->ll_li != NULL
|
||
&& TV_LIST_ITEM_NEXT(lp->ll_list, lp->ll_li) != NULL)
|
||
: lp->ll_n1 != lp->ll_n2) {
|
||
EMSG(_("E711: List value has not enough items"));
|
||
}
|
||
} else {
|
||
typval_T oldtv = TV_INITIAL_VALUE;
|
||
dict_T *dict = lp->ll_dict;
|
||
bool watched = tv_dict_is_watched(dict);
|
||
|
||
if (is_const) {
|
||
EMSG(_("E996: Cannot lock a list or dict"));
|
||
return;
|
||
}
|
||
|
||
// Assign to a List or Dictionary item.
|
||
if (lp->ll_newkey != NULL) {
|
||
if (op != NULL && *op != '=') {
|
||
EMSG2(_(e_letwrong), op);
|
||
return;
|
||
}
|
||
|
||
// Need to add an item to the Dictionary.
|
||
di = tv_dict_item_alloc((const char *)lp->ll_newkey);
|
||
if (tv_dict_add(lp->ll_tv->vval.v_dict, di) == FAIL) {
|
||
xfree(di);
|
||
return;
|
||
}
|
||
lp->ll_tv = &di->di_tv;
|
||
} else {
|
||
if (watched) {
|
||
tv_copy(lp->ll_tv, &oldtv);
|
||
}
|
||
|
||
if (op != NULL && *op != '=') {
|
||
eexe_mod_op(lp->ll_tv, rettv, (const char *)op);
|
||
goto notify;
|
||
} else {
|
||
tv_clear(lp->ll_tv);
|
||
}
|
||
}
|
||
|
||
// Assign the value to the variable or list item.
|
||
if (copy) {
|
||
tv_copy(rettv, lp->ll_tv);
|
||
} else {
|
||
*lp->ll_tv = *rettv;
|
||
lp->ll_tv->v_lock = 0;
|
||
tv_init(rettv);
|
||
}
|
||
|
||
notify:
|
||
if (watched) {
|
||
if (oldtv.v_type == VAR_UNKNOWN) {
|
||
assert(lp->ll_newkey != NULL);
|
||
tv_dict_watcher_notify(dict, (char *)lp->ll_newkey, lp->ll_tv, NULL);
|
||
} else {
|
||
dictitem_T *di_ = lp->ll_di;
|
||
assert(di_->di_key != NULL);
|
||
tv_dict_watcher_notify(dict, (char *)di_->di_key, lp->ll_tv, &oldtv);
|
||
tv_clear(&oldtv);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/ex_cmds
|
||
|
||
/*
|
||
* Evaluate the expression used in a ":for var in expr" command.
|
||
* "arg" points to "var".
|
||
* Set "*errp" to TRUE for an error, FALSE otherwise;
|
||
* Return a pointer that holds the info. Null when there is an error.
|
||
*/
|
||
void *eval_for_line(const char_u *arg, bool *errp, char_u **nextcmdp, int skip)
|
||
{
|
||
forinfo_T *fi = xcalloc(1, sizeof(forinfo_T));
|
||
const char_u *expr;
|
||
typval_T tv;
|
||
list_T *l;
|
||
|
||
*errp = true; // Default: there is an error.
|
||
|
||
expr = skip_var_list(arg, &fi->fi_varcount, &fi->fi_semicolon);
|
||
if (expr == NULL)
|
||
return fi;
|
||
|
||
expr = skipwhite(expr);
|
||
if (expr[0] != 'i' || expr[1] != 'n' || !ascii_iswhite(expr[2])) {
|
||
EMSG(_("E690: Missing \"in\" after :for"));
|
||
return fi;
|
||
}
|
||
|
||
if (skip)
|
||
++emsg_skip;
|
||
if (eval0(skipwhite(expr + 2), &tv, nextcmdp, !skip) == OK) {
|
||
*errp = false;
|
||
if (!skip) {
|
||
l = tv.vval.v_list;
|
||
if (tv.v_type != VAR_LIST) {
|
||
EMSG(_(e_listreq));
|
||
tv_clear(&tv);
|
||
} else if (l == NULL) {
|
||
// a null list is like an empty list: do nothing
|
||
tv_clear(&tv);
|
||
} else {
|
||
/* No need to increment the refcount, it's already set for the
|
||
* list being used in "tv". */
|
||
fi->fi_list = l;
|
||
tv_list_watch_add(l, &fi->fi_lw);
|
||
fi->fi_lw.lw_item = tv_list_first(l);
|
||
}
|
||
}
|
||
}
|
||
if (skip)
|
||
--emsg_skip;
|
||
|
||
return fi;
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/ex_cmds
|
||
|
||
/*
|
||
* Use the first item in a ":for" list. Advance to the next.
|
||
* Assign the values to the variable (list). "arg" points to the first one.
|
||
* Return TRUE when a valid item was found, FALSE when at end of list or
|
||
* something wrong.
|
||
*/
|
||
bool next_for_item(void *fi_void, char_u *arg)
|
||
{
|
||
forinfo_T *fi = (forinfo_T *)fi_void;
|
||
|
||
listitem_T *item = fi->fi_lw.lw_item;
|
||
if (item == NULL) {
|
||
return false;
|
||
} else {
|
||
fi->fi_lw.lw_item = TV_LIST_ITEM_NEXT(fi->fi_list, item);
|
||
return (ex_let_vars(arg, TV_LIST_ITEM_TV(item), true,
|
||
fi->fi_semicolon, fi->fi_varcount, false, NULL) == OK);
|
||
}
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/ex_cmds
|
||
|
||
/*
|
||
* Free the structure used to store info used by ":for".
|
||
*/
|
||
void free_for_info(void *fi_void)
|
||
{
|
||
forinfo_T *fi = (forinfo_T *)fi_void;
|
||
|
||
if (fi != NULL && fi->fi_list != NULL) {
|
||
tv_list_watch_remove(fi->fi_list, &fi->fi_lw);
|
||
tv_list_unref(fi->fi_list);
|
||
}
|
||
xfree(fi);
|
||
}
|
||
|
||
|
||
void set_context_for_expression(expand_T *xp, char_u *arg, cmdidx_T cmdidx)
|
||
{
|
||
int got_eq = FALSE;
|
||
int c;
|
||
char_u *p;
|
||
|
||
if (cmdidx == CMD_let || cmdidx == CMD_const) {
|
||
xp->xp_context = EXPAND_USER_VARS;
|
||
if (vim_strpbrk(arg, (char_u *)"\"'+-*/%.=!?~|&$([<>,#") == NULL) {
|
||
// ":let var1 var2 ...": find last space.
|
||
for (p = arg + STRLEN(arg); p >= arg; ) {
|
||
xp->xp_pattern = p;
|
||
MB_PTR_BACK(arg, p);
|
||
if (ascii_iswhite(*p)) {
|
||
break;
|
||
}
|
||
}
|
||
return;
|
||
}
|
||
} else
|
||
xp->xp_context = cmdidx == CMD_call ? EXPAND_FUNCTIONS
|
||
: EXPAND_EXPRESSION;
|
||
while ((xp->xp_pattern = vim_strpbrk(arg,
|
||
(char_u *)"\"'+-*/%.=!?~|&$([<>,#")) != NULL) {
|
||
c = *xp->xp_pattern;
|
||
if (c == '&') {
|
||
c = xp->xp_pattern[1];
|
||
if (c == '&') {
|
||
++xp->xp_pattern;
|
||
xp->xp_context = cmdidx != CMD_let || got_eq
|
||
? EXPAND_EXPRESSION : EXPAND_NOTHING;
|
||
} else if (c != ' ') {
|
||
xp->xp_context = EXPAND_SETTINGS;
|
||
if ((c == 'l' || c == 'g') && xp->xp_pattern[2] == ':')
|
||
xp->xp_pattern += 2;
|
||
|
||
}
|
||
} else if (c == '$') {
|
||
// environment variable
|
||
xp->xp_context = EXPAND_ENV_VARS;
|
||
} else if (c == '=') {
|
||
got_eq = TRUE;
|
||
xp->xp_context = EXPAND_EXPRESSION;
|
||
} else if (c == '#'
|
||
&& xp->xp_context == EXPAND_EXPRESSION) {
|
||
// Autoload function/variable contains '#'
|
||
break;
|
||
} else if ((c == '<' || c == '#')
|
||
&& xp->xp_context == EXPAND_FUNCTIONS
|
||
&& vim_strchr(xp->xp_pattern, '(') == NULL) {
|
||
// Function name can start with "<SNR>" and contain '#'.
|
||
break;
|
||
} else if (cmdidx != CMD_let || got_eq) {
|
||
if (c == '"') { // string
|
||
while ((c = *++xp->xp_pattern) != NUL && c != '"') {
|
||
if (c == '\\' && xp->xp_pattern[1] != NUL) {
|
||
xp->xp_pattern++;
|
||
}
|
||
}
|
||
xp->xp_context = EXPAND_NOTHING;
|
||
} else if (c == '\'') { // literal string
|
||
// Trick: '' is like stopping and starting a literal string.
|
||
while ((c = *++xp->xp_pattern) != NUL && c != '\'') {
|
||
}
|
||
xp->xp_context = EXPAND_NOTHING;
|
||
} else if (c == '|') {
|
||
if (xp->xp_pattern[1] == '|') {
|
||
++xp->xp_pattern;
|
||
xp->xp_context = EXPAND_EXPRESSION;
|
||
} else
|
||
xp->xp_context = EXPAND_COMMANDS;
|
||
} else
|
||
xp->xp_context = EXPAND_EXPRESSION;
|
||
} else
|
||
/* Doesn't look like something valid, expand as an expression
|
||
* anyway. */
|
||
xp->xp_context = EXPAND_EXPRESSION;
|
||
arg = xp->xp_pattern;
|
||
if (*arg != NUL) {
|
||
while ((c = *++arg) != NUL && (c == ' ' || c == '\t')) {
|
||
}
|
||
}
|
||
}
|
||
xp->xp_pattern = arg;
|
||
}
|
||
|
||
/*
|
||
* ":unlet[!] var1 ... " command.
|
||
*/
|
||
void ex_unlet(exarg_T *eap)
|
||
{
|
||
ex_unletlock(eap, eap->arg, 0);
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/ex_cmds
|
||
|
||
/*
|
||
* ":lockvar" and ":unlockvar" commands
|
||
*/
|
||
void ex_lockvar(exarg_T *eap)
|
||
{
|
||
char_u *arg = eap->arg;
|
||
int deep = 2;
|
||
|
||
if (eap->forceit) {
|
||
deep = -1;
|
||
} else if (ascii_isdigit(*arg)) {
|
||
deep = getdigits_int(&arg, false, -1);
|
||
arg = skipwhite(arg);
|
||
}
|
||
|
||
ex_unletlock(eap, arg, deep);
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/ex_cmds
|
||
|
||
/*
|
||
* ":unlet", ":lockvar" and ":unlockvar" are quite similar.
|
||
*/
|
||
static void ex_unletlock(exarg_T *eap, char_u *argstart, int deep)
|
||
{
|
||
char_u *arg = argstart;
|
||
bool error = false;
|
||
lval_T lv;
|
||
|
||
do {
|
||
if (*arg == '$') {
|
||
const char *name = (char *)++arg;
|
||
|
||
if (get_env_len((const char_u **)&arg) == 0) {
|
||
EMSG2(_(e_invarg2), name - 1);
|
||
return;
|
||
}
|
||
os_unsetenv(name);
|
||
arg = skipwhite(arg);
|
||
continue;
|
||
}
|
||
|
||
// Parse the name and find the end.
|
||
char_u *const name_end = (char_u *)get_lval(arg, NULL, &lv, true,
|
||
eap->skip || error,
|
||
0, FNE_CHECK_START);
|
||
if (lv.ll_name == NULL) {
|
||
error = true; // error, but continue parsing.
|
||
}
|
||
if (name_end == NULL || (!ascii_iswhite(*name_end)
|
||
&& !ends_excmd(*name_end))) {
|
||
if (name_end != NULL) {
|
||
emsg_severe = TRUE;
|
||
EMSG(_(e_trailing));
|
||
}
|
||
if (!(eap->skip || error))
|
||
clear_lval(&lv);
|
||
break;
|
||
}
|
||
|
||
if (!error && !eap->skip) {
|
||
if (eap->cmdidx == CMD_unlet) {
|
||
if (do_unlet_var(&lv, name_end, eap->forceit) == FAIL)
|
||
error = TRUE;
|
||
} else {
|
||
if (do_lock_var(&lv, name_end, deep,
|
||
eap->cmdidx == CMD_lockvar) == FAIL) {
|
||
error = true;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (!eap->skip)
|
||
clear_lval(&lv);
|
||
|
||
arg = skipwhite(name_end);
|
||
} while (!ends_excmd(*arg));
|
||
|
||
eap->nextcmd = check_nextcmd(arg);
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/ex_cmds
|
||
|
||
static int do_unlet_var(lval_T *const lp, char_u *const name_end, int forceit)
|
||
{
|
||
int ret = OK;
|
||
int cc;
|
||
|
||
if (lp->ll_tv == NULL) {
|
||
cc = *name_end;
|
||
*name_end = NUL;
|
||
|
||
// Normal name or expanded name.
|
||
if (do_unlet(lp->ll_name, lp->ll_name_len, forceit) == FAIL) {
|
||
ret = FAIL;
|
||
}
|
||
*name_end = cc;
|
||
} else if ((lp->ll_list != NULL
|
||
// ll_list is not NULL when lvalue is not in a list, NULL lists
|
||
// yield E689.
|
||
&& tv_check_lock(tv_list_locked(lp->ll_list),
|
||
(const char *)lp->ll_name,
|
||
lp->ll_name_len))
|
||
|| (lp->ll_dict != NULL
|
||
&& tv_check_lock(lp->ll_dict->dv_lock,
|
||
(const char *)lp->ll_name,
|
||
lp->ll_name_len))) {
|
||
return FAIL;
|
||
} else if (lp->ll_range) {
|
||
assert(lp->ll_list != NULL);
|
||
// Delete a range of List items.
|
||
listitem_T *const first_li = lp->ll_li;
|
||
listitem_T *last_li = first_li;
|
||
for (;;) {
|
||
listitem_T *const li = TV_LIST_ITEM_NEXT(lp->ll_list, lp->ll_li);
|
||
if (tv_check_lock(TV_LIST_ITEM_TV(lp->ll_li)->v_lock,
|
||
(const char *)lp->ll_name,
|
||
lp->ll_name_len)) {
|
||
return false;
|
||
}
|
||
lp->ll_li = li;
|
||
lp->ll_n1++;
|
||
if (lp->ll_li == NULL || (!lp->ll_empty2 && lp->ll_n2 < lp->ll_n1)) {
|
||
break;
|
||
} else {
|
||
last_li = lp->ll_li;
|
||
}
|
||
}
|
||
tv_list_remove_items(lp->ll_list, first_li, last_li);
|
||
} else {
|
||
if (lp->ll_list != NULL) {
|
||
// unlet a List item.
|
||
tv_list_item_remove(lp->ll_list, lp->ll_li);
|
||
} else {
|
||
// unlet a Dictionary item.
|
||
dict_T *d = lp->ll_dict;
|
||
assert(d != NULL);
|
||
dictitem_T *di = lp->ll_di;
|
||
bool watched = tv_dict_is_watched(d);
|
||
char *key = NULL;
|
||
typval_T oldtv;
|
||
|
||
if (watched) {
|
||
tv_copy(&di->di_tv, &oldtv);
|
||
// need to save key because dictitem_remove will free it
|
||
key = xstrdup((char *)di->di_key);
|
||
}
|
||
|
||
tv_dict_item_remove(d, di);
|
||
|
||
if (watched) {
|
||
tv_dict_watcher_notify(d, key, NULL, &oldtv);
|
||
tv_clear(&oldtv);
|
||
xfree(key);
|
||
}
|
||
}
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/ex_cmds
|
||
|
||
/// unlet a variable
|
||
///
|
||
/// @param[in] name Variable name to unlet.
|
||
/// @param[in] name_len Variable name length.
|
||
/// @param[in] fonceit If true, do not complain if variable doesn’t exist.
|
||
///
|
||
/// @return OK if it existed, FAIL otherwise.
|
||
int do_unlet(const char *const name, const size_t name_len, const int forceit)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
const char *varname;
|
||
dict_T *dict;
|
||
hashtab_T *ht = find_var_ht_dict(name, name_len, &varname, &dict);
|
||
|
||
if (ht != NULL && *varname != NUL) {
|
||
dict_T *d = get_current_funccal_dict(ht);
|
||
if (d == NULL) {
|
||
if (ht == &globvarht) {
|
||
d = &globvardict;
|
||
} else if (ht == &compat_hashtab) {
|
||
d = &vimvardict;
|
||
} else {
|
||
dictitem_T *const di = find_var_in_ht(ht, *name, "", 0, false);
|
||
d = di->di_tv.vval.v_dict;
|
||
}
|
||
if (d == NULL) {
|
||
internal_error("do_unlet()");
|
||
return FAIL;
|
||
}
|
||
}
|
||
|
||
hashitem_T *hi = hash_find(ht, (const char_u *)varname);
|
||
if (HASHITEM_EMPTY(hi)) {
|
||
hi = find_hi_in_scoped_ht((const char *)name, &ht);
|
||
}
|
||
if (hi != NULL && !HASHITEM_EMPTY(hi)) {
|
||
dictitem_T *const di = TV_DICT_HI2DI(hi);
|
||
if (var_check_fixed(di->di_flags, (const char *)name, TV_CSTRING)
|
||
|| var_check_ro(di->di_flags, (const char *)name, TV_CSTRING)
|
||
|| tv_check_lock(d->dv_lock, (const char *)name, TV_CSTRING)) {
|
||
return FAIL;
|
||
}
|
||
|
||
if (tv_check_lock(d->dv_lock, (const char *)name, TV_CSTRING)) {
|
||
return FAIL;
|
||
}
|
||
|
||
typval_T oldtv;
|
||
bool watched = tv_dict_is_watched(dict);
|
||
|
||
if (watched) {
|
||
tv_copy(&di->di_tv, &oldtv);
|
||
}
|
||
|
||
delete_var(ht, hi);
|
||
|
||
if (watched) {
|
||
tv_dict_watcher_notify(dict, varname, NULL, &oldtv);
|
||
tv_clear(&oldtv);
|
||
}
|
||
return OK;
|
||
}
|
||
}
|
||
if (forceit)
|
||
return OK;
|
||
EMSG2(_("E108: No such variable: \"%s\""), name);
|
||
return FAIL;
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/ex_cmds
|
||
|
||
/*
|
||
* Lock or unlock variable indicated by "lp".
|
||
* "deep" is the levels to go (-1 for unlimited);
|
||
* "lock" is TRUE for ":lockvar", FALSE for ":unlockvar".
|
||
*/
|
||
static int do_lock_var(lval_T *lp, char_u *const name_end, const int deep,
|
||
const bool lock)
|
||
{
|
||
int ret = OK;
|
||
|
||
if (deep == 0) { // Nothing to do.
|
||
return OK;
|
||
}
|
||
|
||
if (lp->ll_tv == NULL) {
|
||
// Normal name or expanded name.
|
||
dictitem_T *const di = find_var(
|
||
(const char *)lp->ll_name, lp->ll_name_len, NULL,
|
||
true);
|
||
if (di == NULL) {
|
||
ret = FAIL;
|
||
} else if ((di->di_flags & DI_FLAGS_FIX)
|
||
&& di->di_tv.v_type != VAR_DICT
|
||
&& di->di_tv.v_type != VAR_LIST) {
|
||
// For historical reasons this error is not given for Lists and
|
||
// Dictionaries. E.g. b: dictionary may be locked/unlocked.
|
||
emsgf(_("E940: Cannot lock or unlock variable %s"), lp->ll_name);
|
||
} else {
|
||
if (lock) {
|
||
di->di_flags |= DI_FLAGS_LOCK;
|
||
} else {
|
||
di->di_flags &= ~DI_FLAGS_LOCK;
|
||
}
|
||
tv_item_lock(&di->di_tv, deep, lock);
|
||
}
|
||
} else if (lp->ll_range) {
|
||
listitem_T *li = lp->ll_li;
|
||
|
||
// (un)lock a range of List items.
|
||
while (li != NULL && (lp->ll_empty2 || lp->ll_n2 >= lp->ll_n1)) {
|
||
tv_item_lock(TV_LIST_ITEM_TV(li), deep, lock);
|
||
li = TV_LIST_ITEM_NEXT(lp->ll_list, li);
|
||
lp->ll_n1++;
|
||
}
|
||
} else if (lp->ll_list != NULL) {
|
||
// (un)lock a List item.
|
||
tv_item_lock(TV_LIST_ITEM_TV(lp->ll_li), deep, lock);
|
||
} else {
|
||
// (un)lock a Dictionary item.
|
||
tv_item_lock(&lp->ll_di->di_tv, deep, lock);
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
/*
|
||
* Delete all "menutrans_" variables.
|
||
*/
|
||
void del_menutrans_vars(void)
|
||
{
|
||
hash_lock(&globvarht);
|
||
HASHTAB_ITER(&globvarht, hi, {
|
||
if (STRNCMP(hi->hi_key, "menutrans_", 10) == 0) {
|
||
delete_var(&globvarht, hi);
|
||
}
|
||
});
|
||
hash_unlock(&globvarht);
|
||
}
|
||
|
||
/*
|
||
* Local string buffer for the next two functions to store a variable name
|
||
* with its prefix. Allocated in cat_prefix_varname(), freed later in
|
||
* get_user_var_name().
|
||
*/
|
||
|
||
|
||
static char_u *varnamebuf = NULL;
|
||
static size_t varnamebuflen = 0;
|
||
|
||
/*
|
||
* Function to concatenate a prefix and a variable name.
|
||
*/
|
||
static char_u *cat_prefix_varname(int prefix, char_u *name)
|
||
{
|
||
size_t len = STRLEN(name) + 3;
|
||
|
||
if (len > varnamebuflen) {
|
||
xfree(varnamebuf);
|
||
len += 10; // some additional space
|
||
varnamebuf = xmalloc(len);
|
||
varnamebuflen = len;
|
||
}
|
||
*varnamebuf = prefix;
|
||
varnamebuf[1] = ':';
|
||
STRCPY(varnamebuf + 2, name);
|
||
return varnamebuf;
|
||
}
|
||
|
||
/*
|
||
* Function given to ExpandGeneric() to obtain the list of user defined
|
||
* (global/buffer/window/built-in) variable names.
|
||
*/
|
||
char_u *get_user_var_name(expand_T *xp, int idx)
|
||
{
|
||
static size_t gdone;
|
||
static size_t bdone;
|
||
static size_t wdone;
|
||
static size_t tdone;
|
||
static size_t vidx;
|
||
static hashitem_T *hi;
|
||
hashtab_T *ht;
|
||
|
||
if (idx == 0) {
|
||
gdone = bdone = wdone = vidx = 0;
|
||
tdone = 0;
|
||
}
|
||
|
||
// Global variables
|
||
if (gdone < globvarht.ht_used) {
|
||
if (gdone++ == 0)
|
||
hi = globvarht.ht_array;
|
||
else
|
||
++hi;
|
||
while (HASHITEM_EMPTY(hi))
|
||
++hi;
|
||
if (STRNCMP("g:", xp->xp_pattern, 2) == 0)
|
||
return cat_prefix_varname('g', hi->hi_key);
|
||
return hi->hi_key;
|
||
}
|
||
|
||
// b: variables
|
||
ht = &curbuf->b_vars->dv_hashtab;
|
||
if (bdone < ht->ht_used) {
|
||
if (bdone++ == 0)
|
||
hi = ht->ht_array;
|
||
else
|
||
++hi;
|
||
while (HASHITEM_EMPTY(hi))
|
||
++hi;
|
||
return cat_prefix_varname('b', hi->hi_key);
|
||
}
|
||
|
||
// w: variables
|
||
ht = &curwin->w_vars->dv_hashtab;
|
||
if (wdone < ht->ht_used) {
|
||
if (wdone++ == 0)
|
||
hi = ht->ht_array;
|
||
else
|
||
++hi;
|
||
while (HASHITEM_EMPTY(hi))
|
||
++hi;
|
||
return cat_prefix_varname('w', hi->hi_key);
|
||
}
|
||
|
||
// t: variables
|
||
ht = &curtab->tp_vars->dv_hashtab;
|
||
if (tdone < ht->ht_used) {
|
||
if (tdone++ == 0)
|
||
hi = ht->ht_array;
|
||
else
|
||
++hi;
|
||
while (HASHITEM_EMPTY(hi))
|
||
++hi;
|
||
return cat_prefix_varname('t', hi->hi_key);
|
||
}
|
||
|
||
// v: variables
|
||
if (vidx < ARRAY_SIZE(vimvars)) {
|
||
return cat_prefix_varname('v', (char_u *)vimvars[vidx++].vv_name);
|
||
}
|
||
|
||
XFREE_CLEAR(varnamebuf);
|
||
varnamebuflen = 0;
|
||
return NULL;
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/expressions
|
||
|
||
/// Return TRUE if "pat" matches "text".
|
||
/// Does not use 'cpo' and always uses 'magic'.
|
||
static int pattern_match(char_u *pat, char_u *text, bool ic)
|
||
{
|
||
int matches = 0;
|
||
regmatch_T regmatch;
|
||
|
||
// avoid 'l' flag in 'cpoptions'
|
||
char_u *save_cpo = p_cpo;
|
||
p_cpo = (char_u *)"";
|
||
regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING);
|
||
if (regmatch.regprog != NULL) {
|
||
regmatch.rm_ic = ic;
|
||
matches = vim_regexec_nl(®match, text, (colnr_T)0);
|
||
vim_regfree(regmatch.regprog);
|
||
}
|
||
p_cpo = save_cpo;
|
||
return matches;
|
||
}
|
||
|
||
/*
|
||
* types for expressions.
|
||
*/
|
||
typedef enum {
|
||
TYPE_UNKNOWN = 0,
|
||
TYPE_EQUAL, // ==
|
||
TYPE_NEQUAL, // !=
|
||
TYPE_GREATER, // >
|
||
TYPE_GEQUAL, // >=
|
||
TYPE_SMALLER, // <
|
||
TYPE_SEQUAL, // <=
|
||
TYPE_MATCH, // =~
|
||
TYPE_NOMATCH, // !~
|
||
} exptype_T;
|
||
|
||
// TODO(ZyX-I): move to eval/expressions
|
||
|
||
/*
|
||
* The "evaluate" argument: When FALSE, the argument is only parsed but not
|
||
* executed. The function may return OK, but the rettv will be of type
|
||
* VAR_UNKNOWN. The function still returns FAIL for a syntax error.
|
||
*/
|
||
|
||
/*
|
||
* Handle zero level expression.
|
||
* This calls eval1() and handles error message and nextcmd.
|
||
* Put the result in "rettv" when returning OK and "evaluate" is TRUE.
|
||
* Note: "rettv.v_lock" is not set.
|
||
* Return OK or FAIL.
|
||
*/
|
||
int eval0(char_u *arg, typval_T *rettv, char_u **nextcmd, int evaluate)
|
||
{
|
||
int ret;
|
||
char_u *p;
|
||
|
||
p = skipwhite(arg);
|
||
ret = eval1(&p, rettv, evaluate);
|
||
if (ret == FAIL || !ends_excmd(*p)) {
|
||
if (ret != FAIL) {
|
||
tv_clear(rettv);
|
||
}
|
||
// Report the invalid expression unless the expression evaluation has
|
||
// been cancelled due to an aborting error, an interrupt, or an
|
||
// exception.
|
||
if (!aborting()) {
|
||
emsgf(_(e_invexpr2), arg);
|
||
}
|
||
ret = FAIL;
|
||
}
|
||
if (nextcmd != NULL)
|
||
*nextcmd = check_nextcmd(p);
|
||
|
||
return ret;
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/expressions
|
||
|
||
/*
|
||
* Handle top level expression:
|
||
* expr2 ? expr1 : expr1
|
||
*
|
||
* "arg" must point to the first non-white of the expression.
|
||
* "arg" is advanced to the next non-white after the recognized expression.
|
||
*
|
||
* Note: "rettv.v_lock" is not set.
|
||
*
|
||
* Return OK or FAIL.
|
||
*/
|
||
int eval1(char_u **arg, typval_T *rettv, int evaluate)
|
||
{
|
||
int result;
|
||
typval_T var2;
|
||
|
||
/*
|
||
* Get the first variable.
|
||
*/
|
||
if (eval2(arg, rettv, evaluate) == FAIL)
|
||
return FAIL;
|
||
|
||
if ((*arg)[0] == '?') {
|
||
result = FALSE;
|
||
if (evaluate) {
|
||
bool error = false;
|
||
|
||
if (tv_get_number_chk(rettv, &error) != 0) {
|
||
result = true;
|
||
}
|
||
tv_clear(rettv);
|
||
if (error) {
|
||
return FAIL;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Get the second variable.
|
||
*/
|
||
*arg = skipwhite(*arg + 1);
|
||
if (eval1(arg, rettv, evaluate && result) == FAIL) { // recursive!
|
||
return FAIL;
|
||
}
|
||
|
||
/*
|
||
* Check for the ":".
|
||
*/
|
||
if ((*arg)[0] != ':') {
|
||
EMSG(_("E109: Missing ':' after '?'"));
|
||
if (evaluate && result) {
|
||
tv_clear(rettv);
|
||
}
|
||
return FAIL;
|
||
}
|
||
|
||
/*
|
||
* Get the third variable.
|
||
*/
|
||
*arg = skipwhite(*arg + 1);
|
||
if (eval1(arg, &var2, evaluate && !result) == FAIL) { // Recursive!
|
||
if (evaluate && result) {
|
||
tv_clear(rettv);
|
||
}
|
||
return FAIL;
|
||
}
|
||
if (evaluate && !result)
|
||
*rettv = var2;
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/expressions
|
||
|
||
/*
|
||
* Handle first level expression:
|
||
* expr2 || expr2 || expr2 logical OR
|
||
*
|
||
* "arg" must point to the first non-white of the expression.
|
||
* "arg" is advanced to the next non-white after the recognized expression.
|
||
*
|
||
* Return OK or FAIL.
|
||
*/
|
||
static int eval2(char_u **arg, typval_T *rettv, int evaluate)
|
||
{
|
||
typval_T var2;
|
||
long result;
|
||
int first;
|
||
bool error = false;
|
||
|
||
/*
|
||
* Get the first variable.
|
||
*/
|
||
if (eval3(arg, rettv, evaluate) == FAIL)
|
||
return FAIL;
|
||
|
||
/*
|
||
* Repeat until there is no following "||".
|
||
*/
|
||
first = TRUE;
|
||
result = FALSE;
|
||
while ((*arg)[0] == '|' && (*arg)[1] == '|') {
|
||
if (evaluate && first) {
|
||
if (tv_get_number_chk(rettv, &error) != 0) {
|
||
result = true;
|
||
}
|
||
tv_clear(rettv);
|
||
if (error) {
|
||
return FAIL;
|
||
}
|
||
first = false;
|
||
}
|
||
|
||
/*
|
||
* Get the second variable.
|
||
*/
|
||
*arg = skipwhite(*arg + 2);
|
||
if (eval3(arg, &var2, evaluate && !result) == FAIL)
|
||
return FAIL;
|
||
|
||
/*
|
||
* Compute the result.
|
||
*/
|
||
if (evaluate && !result) {
|
||
if (tv_get_number_chk(&var2, &error) != 0) {
|
||
result = true;
|
||
}
|
||
tv_clear(&var2);
|
||
if (error) {
|
||
return FAIL;
|
||
}
|
||
}
|
||
if (evaluate) {
|
||
rettv->v_type = VAR_NUMBER;
|
||
rettv->vval.v_number = result;
|
||
}
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/expressions
|
||
|
||
/*
|
||
* Handle second level expression:
|
||
* expr3 && expr3 && expr3 logical AND
|
||
*
|
||
* "arg" must point to the first non-white of the expression.
|
||
* "arg" is advanced to the next non-white after the recognized expression.
|
||
*
|
||
* Return OK or FAIL.
|
||
*/
|
||
static int eval3(char_u **arg, typval_T *rettv, int evaluate)
|
||
{
|
||
typval_T var2;
|
||
long result;
|
||
int first;
|
||
bool error = false;
|
||
|
||
/*
|
||
* Get the first variable.
|
||
*/
|
||
if (eval4(arg, rettv, evaluate) == FAIL)
|
||
return FAIL;
|
||
|
||
/*
|
||
* Repeat until there is no following "&&".
|
||
*/
|
||
first = TRUE;
|
||
result = TRUE;
|
||
while ((*arg)[0] == '&' && (*arg)[1] == '&') {
|
||
if (evaluate && first) {
|
||
if (tv_get_number_chk(rettv, &error) == 0) {
|
||
result = false;
|
||
}
|
||
tv_clear(rettv);
|
||
if (error) {
|
||
return FAIL;
|
||
}
|
||
first = false;
|
||
}
|
||
|
||
/*
|
||
* Get the second variable.
|
||
*/
|
||
*arg = skipwhite(*arg + 2);
|
||
if (eval4(arg, &var2, evaluate && result) == FAIL)
|
||
return FAIL;
|
||
|
||
/*
|
||
* Compute the result.
|
||
*/
|
||
if (evaluate && result) {
|
||
if (tv_get_number_chk(&var2, &error) == 0) {
|
||
result = false;
|
||
}
|
||
tv_clear(&var2);
|
||
if (error) {
|
||
return FAIL;
|
||
}
|
||
}
|
||
if (evaluate) {
|
||
rettv->v_type = VAR_NUMBER;
|
||
rettv->vval.v_number = result;
|
||
}
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/expressions
|
||
|
||
/*
|
||
* Handle third level expression:
|
||
* var1 == var2
|
||
* var1 =~ var2
|
||
* var1 != var2
|
||
* var1 !~ var2
|
||
* var1 > var2
|
||
* var1 >= var2
|
||
* var1 < var2
|
||
* var1 <= var2
|
||
* var1 is var2
|
||
* var1 isnot var2
|
||
*
|
||
* "arg" must point to the first non-white of the expression.
|
||
* "arg" is advanced to the next non-white after the recognized expression.
|
||
*
|
||
* Return OK or FAIL.
|
||
*/
|
||
static int eval4(char_u **arg, typval_T *rettv, int evaluate)
|
||
{
|
||
typval_T var2;
|
||
char_u *p;
|
||
int i;
|
||
exptype_T type = TYPE_UNKNOWN;
|
||
bool type_is = false; // true for "is" and "isnot"
|
||
int len = 2;
|
||
varnumber_T n1, n2;
|
||
bool ic;
|
||
|
||
/*
|
||
* Get the first variable.
|
||
*/
|
||
if (eval5(arg, rettv, evaluate) == FAIL)
|
||
return FAIL;
|
||
|
||
p = *arg;
|
||
switch (p[0]) {
|
||
case '=': if (p[1] == '=')
|
||
type = TYPE_EQUAL;
|
||
else if (p[1] == '~')
|
||
type = TYPE_MATCH;
|
||
break;
|
||
case '!': if (p[1] == '=')
|
||
type = TYPE_NEQUAL;
|
||
else if (p[1] == '~')
|
||
type = TYPE_NOMATCH;
|
||
break;
|
||
case '>': if (p[1] != '=') {
|
||
type = TYPE_GREATER;
|
||
len = 1;
|
||
} else
|
||
type = TYPE_GEQUAL;
|
||
break;
|
||
case '<': if (p[1] != '=') {
|
||
type = TYPE_SMALLER;
|
||
len = 1;
|
||
} else
|
||
type = TYPE_SEQUAL;
|
||
break;
|
||
case 'i': if (p[1] == 's') {
|
||
if (p[2] == 'n' && p[3] == 'o' && p[4] == 't') {
|
||
len = 5;
|
||
}
|
||
if (!isalnum(p[len]) && p[len] != '_') {
|
||
type = len == 2 ? TYPE_EQUAL : TYPE_NEQUAL;
|
||
type_is = true;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
|
||
/*
|
||
* If there is a comparative operator, use it.
|
||
*/
|
||
if (type != TYPE_UNKNOWN) {
|
||
// extra question mark appended: ignore case
|
||
if (p[len] == '?') {
|
||
ic = true;
|
||
len++;
|
||
} else if (p[len] == '#') { // extra '#' appended: match case
|
||
ic = false;
|
||
len++;
|
||
} else { // nothing appended: use 'ignorecase'
|
||
ic = p_ic;
|
||
}
|
||
|
||
// Get the second variable.
|
||
*arg = skipwhite(p + len);
|
||
if (eval5(arg, &var2, evaluate) == FAIL) {
|
||
tv_clear(rettv);
|
||
return FAIL;
|
||
}
|
||
|
||
if (evaluate) {
|
||
if (type_is && rettv->v_type != var2.v_type) {
|
||
/* For "is" a different type always means FALSE, for "notis"
|
||
* it means TRUE. */
|
||
n1 = (type == TYPE_NEQUAL);
|
||
} else if (rettv->v_type == VAR_LIST || var2.v_type == VAR_LIST) {
|
||
if (type_is) {
|
||
n1 = (rettv->v_type == var2.v_type
|
||
&& rettv->vval.v_list == var2.vval.v_list);
|
||
if (type == TYPE_NEQUAL)
|
||
n1 = !n1;
|
||
} else if (rettv->v_type != var2.v_type
|
||
|| (type != TYPE_EQUAL && type != TYPE_NEQUAL)) {
|
||
if (rettv->v_type != var2.v_type) {
|
||
EMSG(_("E691: Can only compare List with List"));
|
||
} else {
|
||
EMSG(_("E692: Invalid operation for List"));
|
||
}
|
||
tv_clear(rettv);
|
||
tv_clear(&var2);
|
||
return FAIL;
|
||
} else {
|
||
// Compare two Lists for being equal or unequal.
|
||
n1 = tv_list_equal(rettv->vval.v_list, var2.vval.v_list, ic, false);
|
||
if (type == TYPE_NEQUAL) {
|
||
n1 = !n1;
|
||
}
|
||
}
|
||
} else if (rettv->v_type == VAR_DICT || var2.v_type == VAR_DICT) {
|
||
if (type_is) {
|
||
n1 = (rettv->v_type == var2.v_type
|
||
&& rettv->vval.v_dict == var2.vval.v_dict);
|
||
if (type == TYPE_NEQUAL)
|
||
n1 = !n1;
|
||
} else if (rettv->v_type != var2.v_type
|
||
|| (type != TYPE_EQUAL && type != TYPE_NEQUAL)) {
|
||
if (rettv->v_type != var2.v_type)
|
||
EMSG(_("E735: Can only compare Dictionary with Dictionary"));
|
||
else
|
||
EMSG(_("E736: Invalid operation for Dictionary"));
|
||
tv_clear(rettv);
|
||
tv_clear(&var2);
|
||
return FAIL;
|
||
} else {
|
||
// Compare two Dictionaries for being equal or unequal.
|
||
n1 = tv_dict_equal(rettv->vval.v_dict, var2.vval.v_dict,
|
||
ic, false);
|
||
if (type == TYPE_NEQUAL) {
|
||
n1 = !n1;
|
||
}
|
||
}
|
||
} else if (tv_is_func(*rettv) || tv_is_func(var2)) {
|
||
if (type != TYPE_EQUAL && type != TYPE_NEQUAL) {
|
||
EMSG(_("E694: Invalid operation for Funcrefs"));
|
||
tv_clear(rettv);
|
||
tv_clear(&var2);
|
||
return FAIL;
|
||
}
|
||
if ((rettv->v_type == VAR_PARTIAL
|
||
&& rettv->vval.v_partial == NULL)
|
||
|| (var2.v_type == VAR_PARTIAL
|
||
&& var2.vval.v_partial == NULL)) {
|
||
// when a partial is NULL assume not equal
|
||
n1 = false;
|
||
} else if (type_is) {
|
||
if (rettv->v_type == VAR_FUNC && var2.v_type == VAR_FUNC) {
|
||
// strings are considered the same if their value is
|
||
// the same
|
||
n1 = tv_equal(rettv, &var2, ic, false);
|
||
} else if (rettv->v_type == VAR_PARTIAL
|
||
&& var2.v_type == VAR_PARTIAL) {
|
||
n1 = (rettv->vval.v_partial == var2.vval.v_partial);
|
||
} else {
|
||
n1 = false;
|
||
}
|
||
} else {
|
||
n1 = tv_equal(rettv, &var2, ic, false);
|
||
}
|
||
if (type == TYPE_NEQUAL) {
|
||
n1 = !n1;
|
||
}
|
||
}
|
||
/*
|
||
* If one of the two variables is a float, compare as a float.
|
||
* When using "=~" or "!~", always compare as string.
|
||
*/
|
||
else if ((rettv->v_type == VAR_FLOAT || var2.v_type == VAR_FLOAT)
|
||
&& type != TYPE_MATCH && type != TYPE_NOMATCH) {
|
||
float_T f1, f2;
|
||
|
||
if (rettv->v_type == VAR_FLOAT) {
|
||
f1 = rettv->vval.v_float;
|
||
} else {
|
||
f1 = tv_get_number(rettv);
|
||
}
|
||
if (var2.v_type == VAR_FLOAT) {
|
||
f2 = var2.vval.v_float;
|
||
} else {
|
||
f2 = tv_get_number(&var2);
|
||
}
|
||
n1 = false;
|
||
switch (type) {
|
||
case TYPE_EQUAL: n1 = (f1 == f2); break;
|
||
case TYPE_NEQUAL: n1 = (f1 != f2); break;
|
||
case TYPE_GREATER: n1 = (f1 > f2); break;
|
||
case TYPE_GEQUAL: n1 = (f1 >= f2); break;
|
||
case TYPE_SMALLER: n1 = (f1 < f2); break;
|
||
case TYPE_SEQUAL: n1 = (f1 <= f2); break;
|
||
case TYPE_UNKNOWN:
|
||
case TYPE_MATCH:
|
||
case TYPE_NOMATCH: break;
|
||
}
|
||
}
|
||
/*
|
||
* If one of the two variables is a number, compare as a number.
|
||
* When using "=~" or "!~", always compare as string.
|
||
*/
|
||
else if ((rettv->v_type == VAR_NUMBER || var2.v_type == VAR_NUMBER)
|
||
&& type != TYPE_MATCH && type != TYPE_NOMATCH) {
|
||
n1 = tv_get_number(rettv);
|
||
n2 = tv_get_number(&var2);
|
||
switch (type) {
|
||
case TYPE_EQUAL: n1 = (n1 == n2); break;
|
||
case TYPE_NEQUAL: n1 = (n1 != n2); break;
|
||
case TYPE_GREATER: n1 = (n1 > n2); break;
|
||
case TYPE_GEQUAL: n1 = (n1 >= n2); break;
|
||
case TYPE_SMALLER: n1 = (n1 < n2); break;
|
||
case TYPE_SEQUAL: n1 = (n1 <= n2); break;
|
||
case TYPE_UNKNOWN:
|
||
case TYPE_MATCH:
|
||
case TYPE_NOMATCH: break;
|
||
}
|
||
} else {
|
||
char buf1[NUMBUFLEN];
|
||
char buf2[NUMBUFLEN];
|
||
const char *const s1 = tv_get_string_buf(rettv, buf1);
|
||
const char *const s2 = tv_get_string_buf(&var2, buf2);
|
||
if (type != TYPE_MATCH && type != TYPE_NOMATCH) {
|
||
i = mb_strcmp_ic(ic, s1, s2);
|
||
} else {
|
||
i = 0;
|
||
}
|
||
n1 = false;
|
||
switch (type) {
|
||
case TYPE_EQUAL: n1 = (i == 0); break;
|
||
case TYPE_NEQUAL: n1 = (i != 0); break;
|
||
case TYPE_GREATER: n1 = (i > 0); break;
|
||
case TYPE_GEQUAL: n1 = (i >= 0); break;
|
||
case TYPE_SMALLER: n1 = (i < 0); break;
|
||
case TYPE_SEQUAL: n1 = (i <= 0); break;
|
||
|
||
case TYPE_MATCH:
|
||
case TYPE_NOMATCH: {
|
||
n1 = pattern_match((char_u *)s2, (char_u *)s1, ic);
|
||
if (type == TYPE_NOMATCH) {
|
||
n1 = !n1;
|
||
}
|
||
break;
|
||
}
|
||
case TYPE_UNKNOWN: break; // Avoid gcc warning.
|
||
}
|
||
}
|
||
tv_clear(rettv);
|
||
tv_clear(&var2);
|
||
rettv->v_type = VAR_NUMBER;
|
||
rettv->vval.v_number = n1;
|
||
}
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/expressions
|
||
|
||
/*
|
||
* Handle fourth level expression:
|
||
* + number addition
|
||
* - number subtraction
|
||
* . string concatenation
|
||
* .. string concatenation
|
||
*
|
||
* "arg" must point to the first non-white of the expression.
|
||
* "arg" is advanced to the next non-white after the recognized expression.
|
||
*
|
||
* Return OK or FAIL.
|
||
*/
|
||
static int eval5(char_u **arg, typval_T *rettv, int evaluate)
|
||
{
|
||
typval_T var2;
|
||
typval_T var3;
|
||
int op;
|
||
varnumber_T n1, n2;
|
||
float_T f1 = 0, f2 = 0;
|
||
char_u *p;
|
||
|
||
/*
|
||
* Get the first variable.
|
||
*/
|
||
if (eval6(arg, rettv, evaluate, FALSE) == FAIL)
|
||
return FAIL;
|
||
|
||
/*
|
||
* Repeat computing, until no '+', '-' or '.' is following.
|
||
*/
|
||
for (;; ) {
|
||
op = **arg;
|
||
if (op != '+' && op != '-' && op != '.')
|
||
break;
|
||
|
||
if ((op != '+' || rettv->v_type != VAR_LIST)
|
||
&& (op == '.' || rettv->v_type != VAR_FLOAT)) {
|
||
// For "list + ...", an illegal use of the first operand as
|
||
// a number cannot be determined before evaluating the 2nd
|
||
// operand: if this is also a list, all is ok.
|
||
// For "something . ...", "something - ..." or "non-list + ...",
|
||
// we know that the first operand needs to be a string or number
|
||
// without evaluating the 2nd operand. So check before to avoid
|
||
// side effects after an error.
|
||
if (evaluate && !tv_check_str(rettv)) {
|
||
tv_clear(rettv);
|
||
return FAIL;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Get the second variable.
|
||
*/
|
||
if (op == '.' && *(*arg + 1) == '.') { // ..string concatenation
|
||
(*arg)++;
|
||
}
|
||
*arg = skipwhite(*arg + 1);
|
||
if (eval6(arg, &var2, evaluate, op == '.') == FAIL) {
|
||
tv_clear(rettv);
|
||
return FAIL;
|
||
}
|
||
|
||
if (evaluate) {
|
||
/*
|
||
* Compute the result.
|
||
*/
|
||
if (op == '.') {
|
||
char buf1[NUMBUFLEN];
|
||
char buf2[NUMBUFLEN];
|
||
// s1 already checked
|
||
const char *const s1 = tv_get_string_buf(rettv, buf1);
|
||
const char *const s2 = tv_get_string_buf_chk(&var2, buf2);
|
||
if (s2 == NULL) { // Type error?
|
||
tv_clear(rettv);
|
||
tv_clear(&var2);
|
||
return FAIL;
|
||
}
|
||
p = concat_str((const char_u *)s1, (const char_u *)s2);
|
||
tv_clear(rettv);
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = p;
|
||
} else if (op == '+' && rettv->v_type == VAR_LIST
|
||
&& var2.v_type == VAR_LIST) {
|
||
// Concatenate Lists.
|
||
if (tv_list_concat(rettv->vval.v_list, var2.vval.v_list, &var3)
|
||
== FAIL) {
|
||
tv_clear(rettv);
|
||
tv_clear(&var2);
|
||
return FAIL;
|
||
}
|
||
tv_clear(rettv);
|
||
*rettv = var3;
|
||
} else {
|
||
bool error = false;
|
||
|
||
if (rettv->v_type == VAR_FLOAT) {
|
||
f1 = rettv->vval.v_float;
|
||
n1 = 0;
|
||
} else {
|
||
n1 = tv_get_number_chk(rettv, &error);
|
||
if (error) {
|
||
/* This can only happen for "list + non-list". For
|
||
* "non-list + ..." or "something - ...", we returned
|
||
* before evaluating the 2nd operand. */
|
||
tv_clear(rettv);
|
||
return FAIL;
|
||
}
|
||
if (var2.v_type == VAR_FLOAT)
|
||
f1 = n1;
|
||
}
|
||
if (var2.v_type == VAR_FLOAT) {
|
||
f2 = var2.vval.v_float;
|
||
n2 = 0;
|
||
} else {
|
||
n2 = tv_get_number_chk(&var2, &error);
|
||
if (error) {
|
||
tv_clear(rettv);
|
||
tv_clear(&var2);
|
||
return FAIL;
|
||
}
|
||
if (rettv->v_type == VAR_FLOAT)
|
||
f2 = n2;
|
||
}
|
||
tv_clear(rettv);
|
||
|
||
// If there is a float on either side the result is a float.
|
||
if (rettv->v_type == VAR_FLOAT || var2.v_type == VAR_FLOAT) {
|
||
if (op == '+')
|
||
f1 = f1 + f2;
|
||
else
|
||
f1 = f1 - f2;
|
||
rettv->v_type = VAR_FLOAT;
|
||
rettv->vval.v_float = f1;
|
||
} else {
|
||
if (op == '+')
|
||
n1 = n1 + n2;
|
||
else
|
||
n1 = n1 - n2;
|
||
rettv->v_type = VAR_NUMBER;
|
||
rettv->vval.v_number = n1;
|
||
}
|
||
}
|
||
tv_clear(&var2);
|
||
}
|
||
}
|
||
return OK;
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/expressions
|
||
|
||
/// Handle fifth level expression:
|
||
/// - * number multiplication
|
||
/// - / number division
|
||
/// - % number modulo
|
||
///
|
||
/// @param[in,out] arg Points to the first non-whitespace character of the
|
||
/// expression. Is advanced to the next non-whitespace
|
||
/// character after the recognized expression.
|
||
/// @param[out] rettv Location where result is saved.
|
||
/// @param[in] evaluate If not true, rettv is not populated.
|
||
/// @param[in] want_string True if "." is string_concatenation, otherwise
|
||
/// float
|
||
/// @return OK or FAIL.
|
||
static int eval6(char_u **arg, typval_T *rettv, int evaluate, int want_string)
|
||
FUNC_ATTR_NO_SANITIZE_UNDEFINED
|
||
{
|
||
typval_T var2;
|
||
int op;
|
||
varnumber_T n1, n2;
|
||
bool use_float = false;
|
||
float_T f1 = 0, f2 = 0;
|
||
bool error = false;
|
||
|
||
/*
|
||
* Get the first variable.
|
||
*/
|
||
if (eval7(arg, rettv, evaluate, want_string) == FAIL)
|
||
return FAIL;
|
||
|
||
/*
|
||
* Repeat computing, until no '*', '/' or '%' is following.
|
||
*/
|
||
for (;; ) {
|
||
op = **arg;
|
||
if (op != '*' && op != '/' && op != '%')
|
||
break;
|
||
|
||
if (evaluate) {
|
||
if (rettv->v_type == VAR_FLOAT) {
|
||
f1 = rettv->vval.v_float;
|
||
use_float = true;
|
||
n1 = 0;
|
||
} else {
|
||
n1 = tv_get_number_chk(rettv, &error);
|
||
}
|
||
tv_clear(rettv);
|
||
if (error) {
|
||
return FAIL;
|
||
}
|
||
} else {
|
||
n1 = 0;
|
||
}
|
||
|
||
/*
|
||
* Get the second variable.
|
||
*/
|
||
*arg = skipwhite(*arg + 1);
|
||
if (eval7(arg, &var2, evaluate, FALSE) == FAIL)
|
||
return FAIL;
|
||
|
||
if (evaluate) {
|
||
if (var2.v_type == VAR_FLOAT) {
|
||
if (!use_float) {
|
||
f1 = n1;
|
||
use_float = true;
|
||
}
|
||
f2 = var2.vval.v_float;
|
||
n2 = 0;
|
||
} else {
|
||
n2 = tv_get_number_chk(&var2, &error);
|
||
tv_clear(&var2);
|
||
if (error) {
|
||
return FAIL;
|
||
}
|
||
if (use_float) {
|
||
f2 = n2;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Compute the result.
|
||
* When either side is a float the result is a float.
|
||
*/
|
||
if (use_float) {
|
||
if (op == '*') {
|
||
f1 = f1 * f2;
|
||
} else if (op == '/') {
|
||
// Division by zero triggers error from AddressSanitizer
|
||
f1 = (f2 == 0
|
||
? (
|
||
#ifdef NAN
|
||
f1 == 0
|
||
? NAN
|
||
:
|
||
#endif
|
||
(f1 > 0
|
||
? INFINITY
|
||
: -INFINITY)
|
||
)
|
||
: f1 / f2);
|
||
} else {
|
||
EMSG(_("E804: Cannot use '%' with Float"));
|
||
return FAIL;
|
||
}
|
||
rettv->v_type = VAR_FLOAT;
|
||
rettv->vval.v_float = f1;
|
||
} else {
|
||
if (op == '*') {
|
||
n1 = n1 * n2;
|
||
} else if (op == '/') {
|
||
n1 = num_divide(n1, n2);
|
||
} else {
|
||
n1 = num_modulus(n1, n2);
|
||
}
|
||
rettv->v_type = VAR_NUMBER;
|
||
rettv->vval.v_number = n1;
|
||
}
|
||
}
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/expressions
|
||
|
||
// Handle sixth level expression:
|
||
// number number constant
|
||
// "string" string constant
|
||
// 'string' literal string constant
|
||
// &option-name option value
|
||
// @r register contents
|
||
// identifier variable value
|
||
// function() function call
|
||
// $VAR environment variable
|
||
// (expression) nested expression
|
||
// [expr, expr] List
|
||
// {key: val, key: val} Dictionary
|
||
//
|
||
// Also handle:
|
||
// ! in front logical NOT
|
||
// - in front unary minus
|
||
// + in front unary plus (ignored)
|
||
// trailing [] subscript in String or List
|
||
// trailing .name entry in Dictionary
|
||
//
|
||
// "arg" must point to the first non-white of the expression.
|
||
// "arg" is advanced to the next non-white after the recognized expression.
|
||
//
|
||
// Return OK or FAIL.
|
||
static int eval7(
|
||
char_u **arg,
|
||
typval_T *rettv,
|
||
int evaluate,
|
||
int want_string // after "." operator
|
||
)
|
||
{
|
||
varnumber_T n;
|
||
int len;
|
||
char_u *s;
|
||
char_u *start_leader, *end_leader;
|
||
int ret = OK;
|
||
char_u *alias;
|
||
|
||
// Initialise variable so that tv_clear() can't mistake this for a
|
||
// string and free a string that isn't there.
|
||
rettv->v_type = VAR_UNKNOWN;
|
||
|
||
// Skip '!', '-' and '+' characters. They are handled later.
|
||
start_leader = *arg;
|
||
while (**arg == '!' || **arg == '-' || **arg == '+') {
|
||
*arg = skipwhite(*arg + 1);
|
||
}
|
||
end_leader = *arg;
|
||
|
||
switch (**arg) {
|
||
// Number constant.
|
||
case '0':
|
||
case '1':
|
||
case '2':
|
||
case '3':
|
||
case '4':
|
||
case '5':
|
||
case '6':
|
||
case '7':
|
||
case '8':
|
||
case '9':
|
||
{
|
||
char_u *p = skipdigits(*arg + 1);
|
||
int get_float = false;
|
||
|
||
// We accept a float when the format matches
|
||
// "[0-9]\+\.[0-9]\+\([eE][+-]\?[0-9]\+\)\?". This is very
|
||
// strict to avoid backwards compatibility problems.
|
||
// Don't look for a float after the "." operator, so that
|
||
// ":let vers = 1.2.3" doesn't fail.
|
||
if (!want_string && p[0] == '.' && ascii_isdigit(p[1])) {
|
||
get_float = true;
|
||
p = skipdigits(p + 2);
|
||
if (*p == 'e' || *p == 'E') {
|
||
++p;
|
||
if (*p == '-' || *p == '+') {
|
||
++p;
|
||
}
|
||
if (!ascii_isdigit(*p)) {
|
||
get_float = false;
|
||
} else {
|
||
p = skipdigits(p + 1);
|
||
}
|
||
}
|
||
if (ASCII_ISALPHA(*p) || *p == '.') {
|
||
get_float = false;
|
||
}
|
||
}
|
||
if (get_float) {
|
||
float_T f;
|
||
|
||
*arg += string2float((char *) *arg, &f);
|
||
if (evaluate) {
|
||
rettv->v_type = VAR_FLOAT;
|
||
rettv->vval.v_float = f;
|
||
}
|
||
} else {
|
||
vim_str2nr(*arg, NULL, &len, STR2NR_ALL, &n, NULL, 0);
|
||
*arg += len;
|
||
if (evaluate) {
|
||
rettv->v_type = VAR_NUMBER;
|
||
rettv->vval.v_number = n;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
|
||
// String constant: "string".
|
||
case '"': ret = get_string_tv(arg, rettv, evaluate);
|
||
break;
|
||
|
||
// Literal string constant: 'str''ing'.
|
||
case '\'': ret = get_lit_string_tv(arg, rettv, evaluate);
|
||
break;
|
||
|
||
// List: [expr, expr]
|
||
case '[': ret = get_list_tv(arg, rettv, evaluate);
|
||
break;
|
||
|
||
// Lambda: {arg, arg -> expr}
|
||
// Dictionary: {key: val, key: val}
|
||
case '{': ret = get_lambda_tv(arg, rettv, evaluate);
|
||
if (ret == NOTDONE) {
|
||
ret = dict_get_tv(arg, rettv, evaluate);
|
||
}
|
||
break;
|
||
|
||
// Option value: &name
|
||
case '&': {
|
||
ret = get_option_tv((const char **)arg, rettv, evaluate);
|
||
break;
|
||
}
|
||
// Environment variable: $VAR.
|
||
case '$': ret = get_env_tv(arg, rettv, evaluate);
|
||
break;
|
||
|
||
// Register contents: @r.
|
||
case '@': ++*arg;
|
||
if (evaluate) {
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = get_reg_contents(**arg, kGRegExprSrc);
|
||
}
|
||
if (**arg != NUL) {
|
||
++*arg;
|
||
}
|
||
break;
|
||
|
||
// nested expression: (expression).
|
||
case '(': *arg = skipwhite(*arg + 1);
|
||
ret = eval1(arg, rettv, evaluate); // recursive!
|
||
if (**arg == ')') {
|
||
++*arg;
|
||
} else if (ret == OK) {
|
||
EMSG(_("E110: Missing ')'"));
|
||
tv_clear(rettv);
|
||
ret = FAIL;
|
||
}
|
||
break;
|
||
|
||
default: ret = NOTDONE;
|
||
break;
|
||
}
|
||
|
||
if (ret == NOTDONE) {
|
||
// Must be a variable or function name.
|
||
// Can also be a curly-braces kind of name: {expr}.
|
||
s = *arg;
|
||
len = get_name_len((const char **)arg, (char **)&alias, evaluate, true);
|
||
if (alias != NULL) {
|
||
s = alias;
|
||
}
|
||
|
||
if (len <= 0) {
|
||
ret = FAIL;
|
||
} else {
|
||
if (**arg == '(') { // recursive!
|
||
partial_T *partial;
|
||
|
||
if (!evaluate) {
|
||
check_vars((const char *)s, len);
|
||
}
|
||
|
||
// If "s" is the name of a variable of type VAR_FUNC
|
||
// use its contents.
|
||
s = deref_func_name((const char *)s, &len, &partial, !evaluate);
|
||
|
||
// Need to make a copy, in case evaluating the arguments makes
|
||
// the name invalid.
|
||
s = xmemdupz(s, len);
|
||
|
||
// Invoke the function.
|
||
ret = get_func_tv(s, len, rettv, arg,
|
||
curwin->w_cursor.lnum, curwin->w_cursor.lnum,
|
||
&len, evaluate, partial, NULL);
|
||
|
||
xfree(s);
|
||
|
||
// If evaluate is false rettv->v_type was not set in
|
||
// get_func_tv, but it's needed in handle_subscript() to parse
|
||
// what follows. So set it here.
|
||
if (rettv->v_type == VAR_UNKNOWN && !evaluate && **arg == '(') {
|
||
rettv->vval.v_string = (char_u *)tv_empty_string;
|
||
rettv->v_type = VAR_FUNC;
|
||
}
|
||
|
||
// Stop the expression evaluation when immediately
|
||
// aborting on error, or when an interrupt occurred or
|
||
// an exception was thrown but not caught.
|
||
if (evaluate && aborting()) {
|
||
if (ret == OK) {
|
||
tv_clear(rettv);
|
||
}
|
||
ret = FAIL;
|
||
}
|
||
} else if (evaluate) {
|
||
ret = get_var_tv((const char *)s, len, rettv, NULL, true, false);
|
||
} else {
|
||
check_vars((const char *)s, len);
|
||
ret = OK;
|
||
}
|
||
}
|
||
xfree(alias);
|
||
}
|
||
|
||
*arg = skipwhite(*arg);
|
||
|
||
// Handle following '[', '(' and '.' for expr[expr], expr.name,
|
||
// expr(expr).
|
||
if (ret == OK) {
|
||
ret = handle_subscript((const char **)arg, rettv, evaluate, true);
|
||
}
|
||
|
||
// Apply logical NOT and unary '-', from right to left, ignore '+'.
|
||
if (ret == OK && evaluate && end_leader > start_leader) {
|
||
bool error = false;
|
||
varnumber_T val = 0;
|
||
float_T f = 0.0;
|
||
|
||
if (rettv->v_type == VAR_FLOAT) {
|
||
f = rettv->vval.v_float;
|
||
} else {
|
||
val = tv_get_number_chk(rettv, &error);
|
||
}
|
||
if (error) {
|
||
tv_clear(rettv);
|
||
ret = FAIL;
|
||
} else {
|
||
while (end_leader > start_leader) {
|
||
--end_leader;
|
||
if (*end_leader == '!') {
|
||
if (rettv->v_type == VAR_FLOAT) {
|
||
f = !f;
|
||
} else {
|
||
val = !val;
|
||
}
|
||
} else if (*end_leader == '-') {
|
||
if (rettv->v_type == VAR_FLOAT) {
|
||
f = -f;
|
||
} else {
|
||
val = -val;
|
||
}
|
||
}
|
||
}
|
||
if (rettv->v_type == VAR_FLOAT) {
|
||
tv_clear(rettv);
|
||
rettv->vval.v_float = f;
|
||
} else {
|
||
tv_clear(rettv);
|
||
rettv->v_type = VAR_NUMBER;
|
||
rettv->vval.v_number = val;
|
||
}
|
||
}
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/expressions
|
||
|
||
/*
|
||
* Evaluate an "[expr]" or "[expr:expr]" index. Also "dict.key".
|
||
* "*arg" points to the '[' or '.'.
|
||
* Returns FAIL or OK. "*arg" is advanced to after the ']'.
|
||
*/
|
||
static int
|
||
eval_index(
|
||
char_u **arg,
|
||
typval_T *rettv,
|
||
int evaluate,
|
||
int verbose // give error messages
|
||
)
|
||
{
|
||
bool empty1 = false;
|
||
bool empty2 = false;
|
||
long n1, n2 = 0;
|
||
ptrdiff_t len = -1;
|
||
int range = false;
|
||
char_u *key = NULL;
|
||
|
||
switch (rettv->v_type) {
|
||
case VAR_FUNC:
|
||
case VAR_PARTIAL: {
|
||
if (verbose) {
|
||
EMSG(_("E695: Cannot index a Funcref"));
|
||
}
|
||
return FAIL;
|
||
}
|
||
case VAR_FLOAT: {
|
||
if (verbose) {
|
||
EMSG(_(e_float_as_string));
|
||
}
|
||
return FAIL;
|
||
}
|
||
case VAR_BOOL:
|
||
case VAR_SPECIAL: {
|
||
if (verbose) {
|
||
EMSG(_("E909: Cannot index a special variable"));
|
||
}
|
||
return FAIL;
|
||
}
|
||
case VAR_UNKNOWN: {
|
||
if (evaluate) {
|
||
return FAIL;
|
||
}
|
||
FALLTHROUGH;
|
||
}
|
||
case VAR_STRING:
|
||
case VAR_NUMBER:
|
||
case VAR_LIST:
|
||
case VAR_DICT: {
|
||
break;
|
||
}
|
||
}
|
||
|
||
typval_T var1 = TV_INITIAL_VALUE;
|
||
typval_T var2 = TV_INITIAL_VALUE;
|
||
if (**arg == '.') {
|
||
/*
|
||
* dict.name
|
||
*/
|
||
key = *arg + 1;
|
||
for (len = 0; ASCII_ISALNUM(key[len]) || key[len] == '_'; ++len)
|
||
;
|
||
if (len == 0)
|
||
return FAIL;
|
||
*arg = skipwhite(key + len);
|
||
} else {
|
||
/*
|
||
* something[idx]
|
||
*
|
||
* Get the (first) variable from inside the [].
|
||
*/
|
||
*arg = skipwhite(*arg + 1);
|
||
if (**arg == ':') {
|
||
empty1 = true;
|
||
} else if (eval1(arg, &var1, evaluate) == FAIL) { // Recursive!
|
||
return FAIL;
|
||
} else if (evaluate && !tv_check_str(&var1)) {
|
||
// Not a number or string.
|
||
tv_clear(&var1);
|
||
return FAIL;
|
||
}
|
||
|
||
/*
|
||
* Get the second variable from inside the [:].
|
||
*/
|
||
if (**arg == ':') {
|
||
range = TRUE;
|
||
*arg = skipwhite(*arg + 1);
|
||
if (**arg == ']') {
|
||
empty2 = true;
|
||
} else if (eval1(arg, &var2, evaluate) == FAIL) { // Recursive!
|
||
if (!empty1) {
|
||
tv_clear(&var1);
|
||
}
|
||
return FAIL;
|
||
} else if (evaluate && !tv_check_str(&var2)) {
|
||
// Not a number or string.
|
||
if (!empty1) {
|
||
tv_clear(&var1);
|
||
}
|
||
tv_clear(&var2);
|
||
return FAIL;
|
||
}
|
||
}
|
||
|
||
// Check for the ']'.
|
||
if (**arg != ']') {
|
||
if (verbose) {
|
||
EMSG(_(e_missbrac));
|
||
}
|
||
tv_clear(&var1);
|
||
if (range) {
|
||
tv_clear(&var2);
|
||
}
|
||
return FAIL;
|
||
}
|
||
*arg = skipwhite(*arg + 1); // skip the ']'
|
||
}
|
||
|
||
if (evaluate) {
|
||
n1 = 0;
|
||
if (!empty1 && rettv->v_type != VAR_DICT && !tv_is_luafunc(rettv)) {
|
||
n1 = tv_get_number(&var1);
|
||
tv_clear(&var1);
|
||
}
|
||
if (range) {
|
||
if (empty2) {
|
||
n2 = -1;
|
||
} else {
|
||
n2 = tv_get_number(&var2);
|
||
tv_clear(&var2);
|
||
}
|
||
}
|
||
|
||
switch (rettv->v_type) {
|
||
case VAR_NUMBER:
|
||
case VAR_STRING: {
|
||
const char *const s = tv_get_string(rettv);
|
||
char *v;
|
||
len = (ptrdiff_t)strlen(s);
|
||
if (range) {
|
||
// The resulting variable is a substring. If the indexes
|
||
// are out of range the result is empty.
|
||
if (n1 < 0) {
|
||
n1 = len + n1;
|
||
if (n1 < 0) {
|
||
n1 = 0;
|
||
}
|
||
}
|
||
if (n2 < 0) {
|
||
n2 = len + n2;
|
||
} else if (n2 >= len) {
|
||
n2 = len;
|
||
}
|
||
if (n1 >= len || n2 < 0 || n1 > n2) {
|
||
v = NULL;
|
||
} else {
|
||
v = xmemdupz(s + n1, (size_t)(n2 - n1 + 1));
|
||
}
|
||
} else {
|
||
// The resulting variable is a string of a single
|
||
// character. If the index is too big or negative the
|
||
// result is empty.
|
||
if (n1 >= len || n1 < 0) {
|
||
v = NULL;
|
||
} else {
|
||
v = xmemdupz(s + n1, 1);
|
||
}
|
||
}
|
||
tv_clear(rettv);
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = (char_u *)v;
|
||
break;
|
||
}
|
||
case VAR_LIST: {
|
||
len = tv_list_len(rettv->vval.v_list);
|
||
if (n1 < 0) {
|
||
n1 = len + n1;
|
||
}
|
||
if (!empty1 && (n1 < 0 || n1 >= len)) {
|
||
// For a range we allow invalid values and return an empty
|
||
// list. A list index out of range is an error.
|
||
if (!range) {
|
||
if (verbose) {
|
||
EMSGN(_(e_listidx), n1);
|
||
}
|
||
return FAIL;
|
||
}
|
||
n1 = len;
|
||
}
|
||
if (range) {
|
||
list_T *l;
|
||
listitem_T *item;
|
||
|
||
if (n2 < 0) {
|
||
n2 = len + n2;
|
||
} else if (n2 >= len) {
|
||
n2 = len - 1;
|
||
}
|
||
if (!empty2 && (n2 < 0 || n2 + 1 < n1)) {
|
||
n2 = -1;
|
||
}
|
||
l = tv_list_alloc(n2 - n1 + 1);
|
||
item = tv_list_find(rettv->vval.v_list, n1);
|
||
while (n1++ <= n2) {
|
||
tv_list_append_tv(l, TV_LIST_ITEM_TV(item));
|
||
item = TV_LIST_ITEM_NEXT(rettv->vval.v_list, item);
|
||
}
|
||
tv_clear(rettv);
|
||
tv_list_set_ret(rettv, l);
|
||
} else {
|
||
tv_copy(TV_LIST_ITEM_TV(tv_list_find(rettv->vval.v_list, n1)), &var1);
|
||
tv_clear(rettv);
|
||
*rettv = var1;
|
||
}
|
||
break;
|
||
}
|
||
case VAR_DICT: {
|
||
if (range) {
|
||
if (verbose) {
|
||
EMSG(_(e_dictrange));
|
||
}
|
||
if (len == -1) {
|
||
tv_clear(&var1);
|
||
}
|
||
return FAIL;
|
||
}
|
||
|
||
if (len == -1) {
|
||
key = (char_u *)tv_get_string_chk(&var1);
|
||
if (key == NULL) {
|
||
tv_clear(&var1);
|
||
return FAIL;
|
||
}
|
||
}
|
||
|
||
dictitem_T *const item = tv_dict_find(rettv->vval.v_dict,
|
||
(const char *)key, len);
|
||
|
||
if (item == NULL && verbose) {
|
||
emsgf(_(e_dictkey), key);
|
||
}
|
||
if (len == -1) {
|
||
tv_clear(&var1);
|
||
}
|
||
if (item == NULL || tv_is_luafunc(&item->di_tv)) {
|
||
return FAIL;
|
||
}
|
||
|
||
tv_copy(&item->di_tv, &var1);
|
||
tv_clear(rettv);
|
||
*rettv = var1;
|
||
break;
|
||
}
|
||
case VAR_BOOL:
|
||
case VAR_SPECIAL:
|
||
case VAR_FUNC:
|
||
case VAR_FLOAT:
|
||
case VAR_PARTIAL:
|
||
case VAR_UNKNOWN: {
|
||
break; // Not evaluating, skipping over subscript
|
||
}
|
||
}
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/executor
|
||
|
||
/// Get an option value
|
||
///
|
||
/// @param[in,out] arg Points to the '&' or '+' before the option name. Is
|
||
/// advanced to the character after the option name.
|
||
/// @param[out] rettv Location where result is saved.
|
||
/// @param[in] evaluate If not true, rettv is not populated.
|
||
///
|
||
/// @return OK or FAIL.
|
||
int get_option_tv(const char **const arg, typval_T *const rettv,
|
||
const bool evaluate)
|
||
FUNC_ATTR_NONNULL_ARG(1)
|
||
{
|
||
long numval;
|
||
char_u *stringval;
|
||
int opt_type;
|
||
int c;
|
||
bool working = (**arg == '+'); // has("+option")
|
||
int ret = OK;
|
||
int opt_flags;
|
||
|
||
// Isolate the option name and find its value.
|
||
char *option_end = (char *)find_option_end(arg, &opt_flags);
|
||
if (option_end == NULL) {
|
||
if (rettv != NULL) {
|
||
EMSG2(_("E112: Option name missing: %s"), *arg);
|
||
}
|
||
return FAIL;
|
||
}
|
||
|
||
if (!evaluate) {
|
||
*arg = option_end;
|
||
return OK;
|
||
}
|
||
|
||
c = *option_end;
|
||
*option_end = NUL;
|
||
opt_type = get_option_value((char_u *)(*arg), &numval,
|
||
rettv == NULL ? NULL : &stringval, opt_flags);
|
||
|
||
if (opt_type == -3) { // invalid name
|
||
if (rettv != NULL) {
|
||
EMSG2(_("E113: Unknown option: %s"), *arg);
|
||
}
|
||
ret = FAIL;
|
||
} else if (rettv != NULL) {
|
||
if (opt_type == -2) { // hidden string option
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = NULL;
|
||
} else if (opt_type == -1) { // hidden number option
|
||
rettv->v_type = VAR_NUMBER;
|
||
rettv->vval.v_number = 0;
|
||
} else if (opt_type == 1) { // number option
|
||
rettv->v_type = VAR_NUMBER;
|
||
rettv->vval.v_number = numval;
|
||
} else { // string option
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = stringval;
|
||
}
|
||
} else if (working && (opt_type == -2 || opt_type == -1))
|
||
ret = FAIL;
|
||
|
||
*option_end = c; // put back for error messages
|
||
*arg = option_end;
|
||
|
||
return ret;
|
||
}
|
||
|
||
/*
|
||
* Allocate a variable for a string constant.
|
||
* Return OK or FAIL.
|
||
*/
|
||
static int get_string_tv(char_u **arg, typval_T *rettv, int evaluate)
|
||
{
|
||
char_u *p;
|
||
char_u *name;
|
||
unsigned int extra = 0;
|
||
|
||
/*
|
||
* Find the end of the string, skipping backslashed characters.
|
||
*/
|
||
for (p = *arg + 1; *p != NUL && *p != '"'; MB_PTR_ADV(p)) {
|
||
if (*p == '\\' && p[1] != NUL) {
|
||
++p;
|
||
/* A "\<x>" form occupies at least 4 characters, and produces up
|
||
* to 6 characters: reserve space for 2 extra */
|
||
if (*p == '<')
|
||
extra += 2;
|
||
}
|
||
}
|
||
|
||
if (*p != '"') {
|
||
EMSG2(_("E114: Missing quote: %s"), *arg);
|
||
return FAIL;
|
||
}
|
||
|
||
// If only parsing, set *arg and return here
|
||
if (!evaluate) {
|
||
*arg = p + 1;
|
||
return OK;
|
||
}
|
||
|
||
/*
|
||
* Copy the string into allocated memory, handling backslashed
|
||
* characters.
|
||
*/
|
||
name = xmalloc(p - *arg + extra);
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = name;
|
||
|
||
for (p = *arg + 1; *p != NUL && *p != '"'; ) {
|
||
if (*p == '\\') {
|
||
switch (*++p) {
|
||
case 'b': *name++ = BS; ++p; break;
|
||
case 'e': *name++ = ESC; ++p; break;
|
||
case 'f': *name++ = FF; ++p; break;
|
||
case 'n': *name++ = NL; ++p; break;
|
||
case 'r': *name++ = CAR; ++p; break;
|
||
case 't': *name++ = TAB; ++p; break;
|
||
|
||
case 'X': // hex: "\x1", "\x12"
|
||
case 'x':
|
||
case 'u': // Unicode: "\u0023"
|
||
case 'U':
|
||
if (ascii_isxdigit(p[1])) {
|
||
int n, nr;
|
||
int c = toupper(*p);
|
||
|
||
if (c == 'X') {
|
||
n = 2;
|
||
} else if (*p == 'u') {
|
||
n = 4;
|
||
} else {
|
||
n = 8;
|
||
}
|
||
nr = 0;
|
||
while (--n >= 0 && ascii_isxdigit(p[1])) {
|
||
++p;
|
||
nr = (nr << 4) + hex2nr(*p);
|
||
}
|
||
++p;
|
||
/* For "\u" store the number according to
|
||
* 'encoding'. */
|
||
if (c != 'X') {
|
||
name += utf_char2bytes(nr, name);
|
||
} else {
|
||
*name++ = nr;
|
||
}
|
||
}
|
||
break;
|
||
|
||
// octal: "\1", "\12", "\123"
|
||
case '0':
|
||
case '1':
|
||
case '2':
|
||
case '3':
|
||
case '4':
|
||
case '5':
|
||
case '6':
|
||
case '7': *name = *p++ - '0';
|
||
if (*p >= '0' && *p <= '7') {
|
||
*name = (*name << 3) + *p++ - '0';
|
||
if (*p >= '0' && *p <= '7')
|
||
*name = (*name << 3) + *p++ - '0';
|
||
}
|
||
++name;
|
||
break;
|
||
|
||
// Special key, e.g.: "\<C-W>"
|
||
case '<':
|
||
extra = trans_special((const char_u **)&p, STRLEN(p), name, true, true);
|
||
if (extra != 0) {
|
||
name += extra;
|
||
break;
|
||
}
|
||
FALLTHROUGH;
|
||
|
||
default: MB_COPY_CHAR(p, name);
|
||
break;
|
||
}
|
||
} else
|
||
MB_COPY_CHAR(p, name);
|
||
|
||
}
|
||
*name = NUL;
|
||
if (*p != NUL) { // just in case
|
||
p++;
|
||
}
|
||
*arg = p;
|
||
|
||
return OK;
|
||
}
|
||
|
||
/*
|
||
* Allocate a variable for a 'str''ing' constant.
|
||
* Return OK or FAIL.
|
||
*/
|
||
static int get_lit_string_tv(char_u **arg, typval_T *rettv, int evaluate)
|
||
{
|
||
char_u *p;
|
||
char_u *str;
|
||
int reduce = 0;
|
||
|
||
/*
|
||
* Find the end of the string, skipping ''.
|
||
*/
|
||
for (p = *arg + 1; *p != NUL; MB_PTR_ADV(p)) {
|
||
if (*p == '\'') {
|
||
if (p[1] != '\'')
|
||
break;
|
||
++reduce;
|
||
++p;
|
||
}
|
||
}
|
||
|
||
if (*p != '\'') {
|
||
EMSG2(_("E115: Missing quote: %s"), *arg);
|
||
return FAIL;
|
||
}
|
||
|
||
// If only parsing return after setting "*arg"
|
||
if (!evaluate) {
|
||
*arg = p + 1;
|
||
return OK;
|
||
}
|
||
|
||
/*
|
||
* Copy the string into allocated memory, handling '' to ' reduction.
|
||
*/
|
||
str = xmalloc((p - *arg) - reduce);
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = str;
|
||
|
||
for (p = *arg + 1; *p != NUL; ) {
|
||
if (*p == '\'') {
|
||
if (p[1] != '\'')
|
||
break;
|
||
++p;
|
||
}
|
||
MB_COPY_CHAR(p, str);
|
||
}
|
||
*str = NUL;
|
||
*arg = p + 1;
|
||
|
||
return OK;
|
||
}
|
||
|
||
/// @return the function name of the partial.
|
||
char_u *partial_name(partial_T *pt)
|
||
{
|
||
if (pt->pt_name != NULL) {
|
||
return pt->pt_name;
|
||
}
|
||
return pt->pt_func->uf_name;
|
||
}
|
||
|
||
// TODO(ZyX-I): Move to eval/typval.h
|
||
|
||
static void partial_free(partial_T *pt)
|
||
{
|
||
for (int i = 0; i < pt->pt_argc; i++) {
|
||
tv_clear(&pt->pt_argv[i]);
|
||
}
|
||
xfree(pt->pt_argv);
|
||
tv_dict_unref(pt->pt_dict);
|
||
if (pt->pt_name != NULL) {
|
||
func_unref(pt->pt_name);
|
||
xfree(pt->pt_name);
|
||
} else {
|
||
func_ptr_unref(pt->pt_func);
|
||
}
|
||
xfree(pt);
|
||
}
|
||
|
||
// TODO(ZyX-I): Move to eval/typval.h
|
||
|
||
/// Unreference a closure: decrement the reference count and free it when it
|
||
/// becomes zero.
|
||
void partial_unref(partial_T *pt)
|
||
{
|
||
if (pt != NULL && --pt->pt_refcount <= 0) {
|
||
partial_free(pt);
|
||
}
|
||
}
|
||
|
||
/// Allocate a variable for a List and fill it from "*arg".
|
||
/// Return OK or FAIL.
|
||
static int get_list_tv(char_u **arg, typval_T *rettv, int evaluate)
|
||
{
|
||
list_T *l = NULL;
|
||
|
||
if (evaluate) {
|
||
l = tv_list_alloc(kListLenShouldKnow);
|
||
}
|
||
|
||
*arg = skipwhite(*arg + 1);
|
||
while (**arg != ']' && **arg != NUL) {
|
||
typval_T tv;
|
||
if (eval1(arg, &tv, evaluate) == FAIL) { // Recursive!
|
||
goto failret;
|
||
}
|
||
if (evaluate) {
|
||
tv.v_lock = VAR_UNLOCKED;
|
||
tv_list_append_owned_tv(l, tv);
|
||
}
|
||
|
||
if (**arg == ']') {
|
||
break;
|
||
}
|
||
if (**arg != ',') {
|
||
emsgf(_("E696: Missing comma in List: %s"), *arg);
|
||
goto failret;
|
||
}
|
||
*arg = skipwhite(*arg + 1);
|
||
}
|
||
|
||
if (**arg != ']') {
|
||
emsgf(_("E697: Missing end of List ']': %s"), *arg);
|
||
failret:
|
||
if (evaluate) {
|
||
tv_list_free(l);
|
||
}
|
||
return FAIL;
|
||
}
|
||
|
||
*arg = skipwhite(*arg + 1);
|
||
if (evaluate) {
|
||
tv_list_set_ret(rettv, l);
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
bool func_equal(
|
||
typval_T *tv1,
|
||
typval_T *tv2,
|
||
bool ic // ignore case
|
||
) {
|
||
char_u *s1, *s2;
|
||
dict_T *d1, *d2;
|
||
int a1, a2;
|
||
|
||
// empty and NULL function name considered the same
|
||
s1 = tv1->v_type == VAR_FUNC ? tv1->vval.v_string
|
||
: partial_name(tv1->vval.v_partial);
|
||
if (s1 != NULL && *s1 == NUL) {
|
||
s1 = NULL;
|
||
}
|
||
s2 = tv2->v_type == VAR_FUNC ? tv2->vval.v_string
|
||
: partial_name(tv2->vval.v_partial);
|
||
if (s2 != NULL && *s2 == NUL) {
|
||
s2 = NULL;
|
||
}
|
||
if (s1 == NULL || s2 == NULL) {
|
||
if (s1 != s2) {
|
||
return false;
|
||
}
|
||
} else if (STRCMP(s1, s2) != 0) {
|
||
return false;
|
||
}
|
||
|
||
// empty dict and NULL dict is different
|
||
d1 = tv1->v_type == VAR_FUNC ? NULL : tv1->vval.v_partial->pt_dict;
|
||
d2 = tv2->v_type == VAR_FUNC ? NULL : tv2->vval.v_partial->pt_dict;
|
||
if (d1 == NULL || d2 == NULL) {
|
||
if (d1 != d2) {
|
||
return false;
|
||
}
|
||
} else if (!tv_dict_equal(d1, d2, ic, true)) {
|
||
return false;
|
||
}
|
||
|
||
// empty list and no list considered the same
|
||
a1 = tv1->v_type == VAR_FUNC ? 0 : tv1->vval.v_partial->pt_argc;
|
||
a2 = tv2->v_type == VAR_FUNC ? 0 : tv2->vval.v_partial->pt_argc;
|
||
if (a1 != a2) {
|
||
return false;
|
||
}
|
||
for (int i = 0; i < a1; i++) {
|
||
if (!tv_equal(tv1->vval.v_partial->pt_argv + i,
|
||
tv2->vval.v_partial->pt_argv + i, ic, true)) {
|
||
return false;
|
||
}
|
||
}
|
||
return true;
|
||
}
|
||
|
||
/// Get next (unique) copy ID
|
||
///
|
||
/// Used for traversing nested structures e.g. when serializing them or garbage
|
||
/// collecting.
|
||
int get_copyID(void)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
// CopyID for recursively traversing lists and dicts
|
||
//
|
||
// This value is needed to avoid endless recursiveness. Last bit is used for
|
||
// previous_funccal and normally ignored when comparing.
|
||
static int current_copyID = 0;
|
||
current_copyID += COPYID_INC;
|
||
return current_copyID;
|
||
}
|
||
|
||
/*
|
||
* Garbage collection for lists and dictionaries.
|
||
*
|
||
* We use reference counts to be able to free most items right away when they
|
||
* are no longer used. But for composite items it's possible that it becomes
|
||
* unused while the reference count is > 0: When there is a recursive
|
||
* reference. Example:
|
||
* :let l = [1, 2, 3]
|
||
* :let d = {9: l}
|
||
* :let l[1] = d
|
||
*
|
||
* Since this is quite unusual we handle this with garbage collection: every
|
||
* once in a while find out which lists and dicts are not referenced from any
|
||
* variable.
|
||
*
|
||
* Here is a good reference text about garbage collection (refers to Python
|
||
* but it applies to all reference-counting mechanisms):
|
||
* http://python.ca/nas/python/gc/
|
||
*/
|
||
|
||
/// Do garbage collection for lists and dicts.
|
||
///
|
||
/// @param testing true if called from test_garbagecollect_now().
|
||
/// @returns true if some memory was freed.
|
||
bool garbage_collect(bool testing)
|
||
{
|
||
bool abort = false;
|
||
#define ABORTING(func) abort = abort || func
|
||
|
||
if (!testing) {
|
||
// Only do this once.
|
||
want_garbage_collect = false;
|
||
may_garbage_collect = false;
|
||
garbage_collect_at_exit = false;
|
||
}
|
||
|
||
// We advance by two (COPYID_INC) because we add one for items referenced
|
||
// through previous_funccal.
|
||
const int copyID = get_copyID();
|
||
|
||
// 1. Go through all accessible variables and mark all lists and dicts
|
||
// with copyID.
|
||
|
||
// Don't free variables in the previous_funccal list unless they are only
|
||
// referenced through previous_funccal. This must be first, because if
|
||
// the item is referenced elsewhere the funccal must not be freed.
|
||
ABORTING(set_ref_in_previous_funccal)(copyID);
|
||
|
||
// script-local variables
|
||
for (int i = 1; i <= ga_scripts.ga_len; ++i) {
|
||
ABORTING(set_ref_in_ht)(&SCRIPT_VARS(i), copyID, NULL);
|
||
}
|
||
|
||
FOR_ALL_BUFFERS(buf) {
|
||
// buffer-local variables
|
||
ABORTING(set_ref_in_item)(&buf->b_bufvar.di_tv, copyID, NULL, NULL);
|
||
// buffer marks (ShaDa additional data)
|
||
ABORTING(set_ref_in_fmark)(buf->b_last_cursor, copyID);
|
||
ABORTING(set_ref_in_fmark)(buf->b_last_insert, copyID);
|
||
ABORTING(set_ref_in_fmark)(buf->b_last_change, copyID);
|
||
for (size_t i = 0; i < NMARKS; i++) {
|
||
ABORTING(set_ref_in_fmark)(buf->b_namedm[i], copyID);
|
||
}
|
||
// buffer change list (ShaDa additional data)
|
||
for (int i = 0; i < buf->b_changelistlen; i++) {
|
||
ABORTING(set_ref_in_fmark)(buf->b_changelist[i], copyID);
|
||
}
|
||
// buffer ShaDa additional data
|
||
ABORTING(set_ref_dict)(buf->additional_data, copyID);
|
||
|
||
// buffer callback functions
|
||
set_ref_in_callback(&buf->b_prompt_callback, copyID, NULL, NULL);
|
||
set_ref_in_callback(&buf->b_prompt_interrupt, copyID, NULL, NULL);
|
||
}
|
||
|
||
FOR_ALL_TAB_WINDOWS(tp, wp) {
|
||
// window-local variables
|
||
ABORTING(set_ref_in_item)(&wp->w_winvar.di_tv, copyID, NULL, NULL);
|
||
// window jump list (ShaDa additional data)
|
||
for (int i = 0; i < wp->w_jumplistlen; i++) {
|
||
ABORTING(set_ref_in_fmark)(wp->w_jumplist[i].fmark, copyID);
|
||
}
|
||
}
|
||
if (aucmd_win != NULL) {
|
||
ABORTING(set_ref_in_item)(&aucmd_win->w_winvar.di_tv, copyID, NULL, NULL);
|
||
}
|
||
|
||
// registers (ShaDa additional data)
|
||
{
|
||
const void *reg_iter = NULL;
|
||
do {
|
||
yankreg_T reg;
|
||
char name = NUL;
|
||
bool is_unnamed = false;
|
||
reg_iter = op_global_reg_iter(reg_iter, &name, ®, &is_unnamed);
|
||
if (name != NUL) {
|
||
ABORTING(set_ref_dict)(reg.additional_data, copyID);
|
||
}
|
||
} while (reg_iter != NULL);
|
||
}
|
||
|
||
// global marks (ShaDa additional data)
|
||
{
|
||
const void *mark_iter = NULL;
|
||
do {
|
||
xfmark_T fm;
|
||
char name = NUL;
|
||
mark_iter = mark_global_iter(mark_iter, &name, &fm);
|
||
if (name != NUL) {
|
||
ABORTING(set_ref_dict)(fm.fmark.additional_data, copyID);
|
||
}
|
||
} while (mark_iter != NULL);
|
||
}
|
||
|
||
// tabpage-local variables
|
||
FOR_ALL_TABS(tp) {
|
||
ABORTING(set_ref_in_item)(&tp->tp_winvar.di_tv, copyID, NULL, NULL);
|
||
}
|
||
|
||
// global variables
|
||
ABORTING(set_ref_in_ht)(&globvarht, copyID, NULL);
|
||
|
||
// function-local variables
|
||
ABORTING(set_ref_in_call_stack)(copyID);
|
||
|
||
// named functions (matters for closures)
|
||
ABORTING(set_ref_in_functions)(copyID);
|
||
|
||
// Channels
|
||
{
|
||
Channel *data;
|
||
map_foreach_value(channels, data, {
|
||
set_ref_in_callback_reader(&data->on_data, copyID, NULL, NULL);
|
||
set_ref_in_callback_reader(&data->on_stderr, copyID, NULL, NULL);
|
||
set_ref_in_callback(&data->on_exit, copyID, NULL, NULL);
|
||
})
|
||
}
|
||
|
||
// Timers
|
||
{
|
||
timer_T *timer;
|
||
map_foreach_value(timers, timer, {
|
||
set_ref_in_callback(&timer->callback, copyID, NULL, NULL);
|
||
})
|
||
}
|
||
|
||
// function call arguments, if v:testing is set.
|
||
ABORTING(set_ref_in_func_args)(copyID);
|
||
|
||
// v: vars
|
||
ABORTING(set_ref_in_ht)(&vimvarht, copyID, NULL);
|
||
|
||
// history items (ShaDa additional elements)
|
||
if (p_hi) {
|
||
for (uint8_t i = 0; i < HIST_COUNT; i++) {
|
||
const void *iter = NULL;
|
||
do {
|
||
histentry_T hist;
|
||
iter = hist_iter(iter, i, false, &hist);
|
||
if (hist.hisstr != NULL) {
|
||
ABORTING(set_ref_list)(hist.additional_elements, copyID);
|
||
}
|
||
} while (iter != NULL);
|
||
}
|
||
}
|
||
|
||
// previously used search/substitute patterns (ShaDa additional data)
|
||
{
|
||
SearchPattern pat;
|
||
get_search_pattern(&pat);
|
||
ABORTING(set_ref_dict)(pat.additional_data, copyID);
|
||
get_substitute_pattern(&pat);
|
||
ABORTING(set_ref_dict)(pat.additional_data, copyID);
|
||
}
|
||
|
||
// previously used replacement string
|
||
{
|
||
SubReplacementString sub;
|
||
sub_get_replacement(&sub);
|
||
ABORTING(set_ref_list)(sub.additional_elements, copyID);
|
||
}
|
||
|
||
ABORTING(set_ref_in_quickfix)(copyID);
|
||
|
||
bool did_free = false;
|
||
if (!abort) {
|
||
// 2. Free lists and dictionaries that are not referenced.
|
||
did_free = free_unref_items(copyID);
|
||
|
||
// 3. Check if any funccal can be freed now.
|
||
// This may call us back recursively.
|
||
did_free = free_unref_funccal(copyID, testing) || did_free;
|
||
} else if (p_verbose > 0) {
|
||
verb_msg(_(
|
||
"Not enough memory to set references, garbage collection aborted!"));
|
||
}
|
||
#undef ABORTING
|
||
return did_free;
|
||
}
|
||
|
||
/// Free lists and dictionaries that are no longer referenced.
|
||
///
|
||
/// @note This function may only be called from garbage_collect().
|
||
///
|
||
/// @param copyID Free lists/dictionaries that don't have this ID.
|
||
/// @return true, if something was freed.
|
||
static int free_unref_items(int copyID)
|
||
{
|
||
bool did_free = false;
|
||
|
||
// Let all "free" functions know that we are here. This means no
|
||
// dictionaries, lists, or jobs are to be freed, because we will
|
||
// do that here.
|
||
tv_in_free_unref_items = true;
|
||
|
||
// PASS 1: free the contents of the items. We don't free the items
|
||
// themselves yet, so that it is possible to decrement refcount counters.
|
||
|
||
// Go through the list of dicts and free items without the copyID.
|
||
// Don't free dicts that are referenced internally.
|
||
for (dict_T *dd = gc_first_dict; dd != NULL; dd = dd->dv_used_next) {
|
||
if ((dd->dv_copyID & COPYID_MASK) != (copyID & COPYID_MASK)) {
|
||
// Free the Dictionary and ordinary items it contains, but don't
|
||
// recurse into Lists and Dictionaries, they will be in the list
|
||
// of dicts or list of lists.
|
||
tv_dict_free_contents(dd);
|
||
did_free = true;
|
||
}
|
||
}
|
||
|
||
// Go through the list of lists and free items without the copyID.
|
||
// But don't free a list that has a watcher (used in a for loop), these
|
||
// are not referenced anywhere.
|
||
for (list_T *ll = gc_first_list; ll != NULL; ll = ll->lv_used_next) {
|
||
if ((tv_list_copyid(ll) & COPYID_MASK) != (copyID & COPYID_MASK)
|
||
&& !tv_list_has_watchers(ll)) {
|
||
// Free the List and ordinary items it contains, but don't recurse
|
||
// into Lists and Dictionaries, they will be in the list of dicts
|
||
// or list of lists.
|
||
tv_list_free_contents(ll);
|
||
did_free = true;
|
||
}
|
||
}
|
||
|
||
// PASS 2: free the items themselves.
|
||
dict_T *dd_next;
|
||
for (dict_T *dd = gc_first_dict; dd != NULL; dd = dd_next) {
|
||
dd_next = dd->dv_used_next;
|
||
if ((dd->dv_copyID & COPYID_MASK) != (copyID & COPYID_MASK)) {
|
||
tv_dict_free_dict(dd);
|
||
}
|
||
}
|
||
|
||
list_T *ll_next;
|
||
for (list_T *ll = gc_first_list; ll != NULL; ll = ll_next) {
|
||
ll_next = ll->lv_used_next;
|
||
if ((ll->lv_copyID & COPYID_MASK) != (copyID & COPYID_MASK)
|
||
&& !tv_list_has_watchers(ll)) {
|
||
// Free the List and ordinary items it contains, but don't recurse
|
||
// into Lists and Dictionaries, they will be in the list of dicts
|
||
// or list of lists.
|
||
tv_list_free_list(ll);
|
||
}
|
||
}
|
||
tv_in_free_unref_items = false;
|
||
return did_free;
|
||
}
|
||
|
||
/// Mark all lists and dicts referenced through hashtab "ht" with "copyID".
|
||
///
|
||
/// @param ht Hashtab content will be marked.
|
||
/// @param copyID New mark for lists and dicts.
|
||
/// @param list_stack Used to add lists to be marked. Can be NULL.
|
||
///
|
||
/// @returns true if setting references failed somehow.
|
||
bool set_ref_in_ht(hashtab_T *ht, int copyID, list_stack_T **list_stack)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
bool abort = false;
|
||
ht_stack_T *ht_stack = NULL;
|
||
|
||
hashtab_T *cur_ht = ht;
|
||
for (;;) {
|
||
if (!abort) {
|
||
// Mark each item in the hashtab. If the item contains a hashtab
|
||
// it is added to ht_stack, if it contains a list it is added to
|
||
// list_stack.
|
||
HASHTAB_ITER(cur_ht, hi, {
|
||
abort = abort || set_ref_in_item(
|
||
&TV_DICT_HI2DI(hi)->di_tv, copyID, &ht_stack, list_stack);
|
||
});
|
||
}
|
||
|
||
if (ht_stack == NULL) {
|
||
break;
|
||
}
|
||
|
||
// take an item from the stack
|
||
cur_ht = ht_stack->ht;
|
||
ht_stack_T *tempitem = ht_stack;
|
||
ht_stack = ht_stack->prev;
|
||
xfree(tempitem);
|
||
}
|
||
|
||
return abort;
|
||
}
|
||
|
||
/// Mark all lists and dicts referenced through list "l" with "copyID".
|
||
///
|
||
/// @param l List content will be marked.
|
||
/// @param copyID New mark for lists and dicts.
|
||
/// @param ht_stack Used to add hashtabs to be marked. Can be NULL.
|
||
///
|
||
/// @returns true if setting references failed somehow.
|
||
bool set_ref_in_list(list_T *l, int copyID, ht_stack_T **ht_stack)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
bool abort = false;
|
||
list_stack_T *list_stack = NULL;
|
||
|
||
list_T *cur_l = l;
|
||
for (;;) {
|
||
// Mark each item in the list. If the item contains a hashtab
|
||
// it is added to ht_stack, if it contains a list it is added to
|
||
// list_stack.
|
||
TV_LIST_ITER(cur_l, li, {
|
||
if (abort) {
|
||
break;
|
||
}
|
||
abort = set_ref_in_item(TV_LIST_ITEM_TV(li), copyID, ht_stack,
|
||
&list_stack);
|
||
});
|
||
|
||
if (list_stack == NULL) {
|
||
break;
|
||
}
|
||
|
||
// take an item from the stack
|
||
cur_l = list_stack->list;
|
||
list_stack_T *tempitem = list_stack;
|
||
list_stack = list_stack->prev;
|
||
xfree(tempitem);
|
||
}
|
||
|
||
return abort;
|
||
}
|
||
|
||
/// Mark all lists and dicts referenced through typval "tv" with "copyID".
|
||
///
|
||
/// @param tv Typval content will be marked.
|
||
/// @param copyID New mark for lists and dicts.
|
||
/// @param ht_stack Used to add hashtabs to be marked. Can be NULL.
|
||
/// @param list_stack Used to add lists to be marked. Can be NULL.
|
||
///
|
||
/// @returns true if setting references failed somehow.
|
||
bool set_ref_in_item(typval_T *tv, int copyID, ht_stack_T **ht_stack,
|
||
list_stack_T **list_stack)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
bool abort = false;
|
||
|
||
switch (tv->v_type) {
|
||
case VAR_DICT: {
|
||
dict_T *dd = tv->vval.v_dict;
|
||
if (dd != NULL && dd->dv_copyID != copyID) {
|
||
// Didn't see this dict yet.
|
||
dd->dv_copyID = copyID;
|
||
if (ht_stack == NULL) {
|
||
abort = set_ref_in_ht(&dd->dv_hashtab, copyID, list_stack);
|
||
} else {
|
||
ht_stack_T *newitem = try_malloc(sizeof(ht_stack_T));
|
||
if (newitem == NULL) {
|
||
abort = true;
|
||
} else {
|
||
newitem->ht = &dd->dv_hashtab;
|
||
newitem->prev = *ht_stack;
|
||
*ht_stack = newitem;
|
||
}
|
||
}
|
||
|
||
QUEUE *w = NULL;
|
||
DictWatcher *watcher = NULL;
|
||
QUEUE_FOREACH(w, &dd->watchers) {
|
||
watcher = tv_dict_watcher_node_data(w);
|
||
set_ref_in_callback(&watcher->callback, copyID, ht_stack, list_stack);
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
|
||
case VAR_LIST: {
|
||
list_T *ll = tv->vval.v_list;
|
||
if (ll != NULL && ll->lv_copyID != copyID) {
|
||
// Didn't see this list yet.
|
||
ll->lv_copyID = copyID;
|
||
if (list_stack == NULL) {
|
||
abort = set_ref_in_list(ll, copyID, ht_stack);
|
||
} else {
|
||
list_stack_T *newitem = try_malloc(sizeof(list_stack_T));
|
||
if (newitem == NULL) {
|
||
abort = true;
|
||
} else {
|
||
newitem->list = ll;
|
||
newitem->prev = *list_stack;
|
||
*list_stack = newitem;
|
||
}
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
|
||
case VAR_PARTIAL: {
|
||
partial_T *pt = tv->vval.v_partial;
|
||
|
||
// A partial does not have a copyID, because it cannot contain itself.
|
||
if (pt != NULL) {
|
||
abort = set_ref_in_func(pt->pt_name, pt->pt_func, copyID);
|
||
if (pt->pt_dict != NULL) {
|
||
typval_T dtv;
|
||
|
||
dtv.v_type = VAR_DICT;
|
||
dtv.vval.v_dict = pt->pt_dict;
|
||
abort = abort || set_ref_in_item(&dtv, copyID, ht_stack, list_stack);
|
||
}
|
||
|
||
for (int i = 0; i < pt->pt_argc; i++) {
|
||
abort = abort || set_ref_in_item(&pt->pt_argv[i], copyID,
|
||
ht_stack, list_stack);
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
case VAR_FUNC:
|
||
abort = set_ref_in_func(tv->vval.v_string, NULL, copyID);
|
||
break;
|
||
case VAR_UNKNOWN:
|
||
case VAR_BOOL:
|
||
case VAR_SPECIAL:
|
||
case VAR_FLOAT:
|
||
case VAR_NUMBER:
|
||
case VAR_STRING: {
|
||
break;
|
||
}
|
||
}
|
||
return abort;
|
||
}
|
||
|
||
|
||
|
||
/// Mark all lists and dicts referenced in given mark
|
||
///
|
||
/// @returns true if setting references failed somehow.
|
||
static inline bool set_ref_in_fmark(fmark_T fm, int copyID)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
if (fm.additional_data != NULL
|
||
&& fm.additional_data->dv_copyID != copyID) {
|
||
fm.additional_data->dv_copyID = copyID;
|
||
return set_ref_in_ht(&fm.additional_data->dv_hashtab, copyID, NULL);
|
||
}
|
||
return false;
|
||
}
|
||
|
||
/// Mark all lists and dicts referenced in given list and the list itself
|
||
///
|
||
/// @returns true if setting references failed somehow.
|
||
static inline bool set_ref_list(list_T *list, int copyID)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
if (list != NULL) {
|
||
typval_T tv = (typval_T) {
|
||
.v_type = VAR_LIST,
|
||
.vval = { .v_list = list }
|
||
};
|
||
return set_ref_in_item(&tv, copyID, NULL, NULL);
|
||
}
|
||
return false;
|
||
}
|
||
|
||
/// Mark all lists and dicts referenced in given dict and the dict itself
|
||
///
|
||
/// @returns true if setting references failed somehow.
|
||
static inline bool set_ref_dict(dict_T *dict, int copyID)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
if (dict != NULL) {
|
||
typval_T tv = (typval_T) {
|
||
.v_type = VAR_DICT,
|
||
.vval = { .v_dict = dict }
|
||
};
|
||
return set_ref_in_item(&tv, copyID, NULL, NULL);
|
||
}
|
||
return false;
|
||
}
|
||
|
||
/*
|
||
* Allocate a variable for a Dictionary and fill it from "*arg".
|
||
* Return OK or FAIL. Returns NOTDONE for {expr}.
|
||
*/
|
||
static int dict_get_tv(char_u **arg, typval_T *rettv, int evaluate)
|
||
{
|
||
dict_T *d = NULL;
|
||
typval_T tvkey;
|
||
typval_T tv;
|
||
char_u *key = NULL;
|
||
dictitem_T *item;
|
||
char_u *start = skipwhite(*arg + 1);
|
||
char buf[NUMBUFLEN];
|
||
|
||
/*
|
||
* First check if it's not a curly-braces thing: {expr}.
|
||
* Must do this without evaluating, otherwise a function may be called
|
||
* twice. Unfortunately this means we need to call eval1() twice for the
|
||
* first item.
|
||
* But {} is an empty Dictionary.
|
||
*/
|
||
if (*start != '}') {
|
||
if (eval1(&start, &tv, false) == FAIL) { // recursive!
|
||
return FAIL;
|
||
}
|
||
if (*start == '}') {
|
||
return NOTDONE;
|
||
}
|
||
}
|
||
|
||
if (evaluate) {
|
||
d = tv_dict_alloc();
|
||
}
|
||
tvkey.v_type = VAR_UNKNOWN;
|
||
tv.v_type = VAR_UNKNOWN;
|
||
|
||
*arg = skipwhite(*arg + 1);
|
||
while (**arg != '}' && **arg != NUL) {
|
||
if (eval1(arg, &tvkey, evaluate) == FAIL) { // recursive!
|
||
goto failret;
|
||
}
|
||
if (**arg != ':') {
|
||
EMSG2(_("E720: Missing colon in Dictionary: %s"), *arg);
|
||
tv_clear(&tvkey);
|
||
goto failret;
|
||
}
|
||
if (evaluate) {
|
||
key = (char_u *)tv_get_string_buf_chk(&tvkey, buf);
|
||
if (key == NULL) {
|
||
// "key" is NULL when tv_get_string_buf_chk() gave an errmsg
|
||
tv_clear(&tvkey);
|
||
goto failret;
|
||
}
|
||
}
|
||
|
||
*arg = skipwhite(*arg + 1);
|
||
if (eval1(arg, &tv, evaluate) == FAIL) { // Recursive!
|
||
if (evaluate) {
|
||
tv_clear(&tvkey);
|
||
}
|
||
goto failret;
|
||
}
|
||
if (evaluate) {
|
||
item = tv_dict_find(d, (const char *)key, -1);
|
||
if (item != NULL) {
|
||
EMSG2(_("E721: Duplicate key in Dictionary: \"%s\""), key);
|
||
tv_clear(&tvkey);
|
||
tv_clear(&tv);
|
||
goto failret;
|
||
}
|
||
item = tv_dict_item_alloc((const char *)key);
|
||
item->di_tv = tv;
|
||
item->di_tv.v_lock = 0;
|
||
if (tv_dict_add(d, item) == FAIL) {
|
||
tv_dict_item_free(item);
|
||
}
|
||
}
|
||
tv_clear(&tvkey);
|
||
|
||
if (**arg == '}')
|
||
break;
|
||
if (**arg != ',') {
|
||
EMSG2(_("E722: Missing comma in Dictionary: %s"), *arg);
|
||
goto failret;
|
||
}
|
||
*arg = skipwhite(*arg + 1);
|
||
}
|
||
|
||
if (**arg != '}') {
|
||
EMSG2(_("E723: Missing end of Dictionary '}': %s"), *arg);
|
||
failret:
|
||
if (d != NULL) {
|
||
tv_dict_free(d);
|
||
}
|
||
return FAIL;
|
||
}
|
||
|
||
*arg = skipwhite(*arg + 1);
|
||
if (evaluate) {
|
||
tv_dict_set_ret(rettv, d);
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
/// Convert the string to a floating point number
|
||
///
|
||
/// This uses strtod(). setlocale(LC_NUMERIC, "C") has been used earlier to
|
||
/// make sure this always uses a decimal point.
|
||
///
|
||
/// @param[in] text String to convert.
|
||
/// @param[out] ret_value Location where conversion result is saved.
|
||
///
|
||
/// @return Length of the text that was consumed.
|
||
size_t string2float(const char *const text, float_T *const ret_value)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
char *s = NULL;
|
||
|
||
// MS-Windows does not deal with "inf" and "nan" properly
|
||
if (STRNICMP(text, "inf", 3) == 0) {
|
||
*ret_value = INFINITY;
|
||
return 3;
|
||
}
|
||
if (STRNICMP(text, "-inf", 3) == 0) {
|
||
*ret_value = -INFINITY;
|
||
return 4;
|
||
}
|
||
if (STRNICMP(text, "nan", 3) == 0) {
|
||
*ret_value = NAN;
|
||
return 3;
|
||
}
|
||
*ret_value = strtod(text, &s);
|
||
return (size_t) (s - text);
|
||
}
|
||
|
||
/// Get the value of an environment variable.
|
||
///
|
||
/// If the environment variable was not set, silently assume it is empty.
|
||
///
|
||
/// @param arg Points to the '$'. It is advanced to after the name.
|
||
/// @return FAIL if the name is invalid.
|
||
///
|
||
static int get_env_tv(char_u **arg, typval_T *rettv, int evaluate)
|
||
{
|
||
char_u *name;
|
||
char_u *string = NULL;
|
||
int len;
|
||
int cc;
|
||
|
||
++*arg;
|
||
name = *arg;
|
||
len = get_env_len((const char_u **)arg);
|
||
|
||
if (evaluate) {
|
||
if (len == 0) {
|
||
return FAIL; // Invalid empty name.
|
||
}
|
||
cc = name[len];
|
||
name[len] = NUL;
|
||
// First try vim_getenv(), fast for normal environment vars.
|
||
string = (char_u *)vim_getenv((char *)name);
|
||
if (string == NULL || *string == NUL) {
|
||
xfree(string);
|
||
|
||
// Next try expanding things like $VIM and ${HOME}.
|
||
string = expand_env_save(name - 1);
|
||
if (string != NULL && *string == '$') {
|
||
XFREE_CLEAR(string);
|
||
}
|
||
}
|
||
name[len] = cc;
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = string;
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
/// Get the argument list for a given window
|
||
void get_arglist_as_rettv(aentry_T *arglist, int argcount,
|
||
typval_T *rettv)
|
||
{
|
||
tv_list_alloc_ret(rettv, argcount);
|
||
if (arglist != NULL) {
|
||
for (int idx = 0; idx < argcount; idx++) {
|
||
tv_list_append_string(rettv->vval.v_list,
|
||
(const char *)alist_name(&arglist[idx]), -1);
|
||
}
|
||
}
|
||
}
|
||
|
||
// Prepare "gap" for an assert error and add the sourcing position.
|
||
void prepare_assert_error(garray_T *gap)
|
||
{
|
||
char buf[NUMBUFLEN];
|
||
|
||
ga_init(gap, 1, 100);
|
||
if (sourcing_name != NULL) {
|
||
ga_concat(gap, sourcing_name);
|
||
if (sourcing_lnum > 0) {
|
||
ga_concat(gap, (char_u *)" ");
|
||
}
|
||
}
|
||
if (sourcing_lnum > 0) {
|
||
vim_snprintf(buf, ARRAY_SIZE(buf), "line %" PRId64, (int64_t)sourcing_lnum);
|
||
ga_concat(gap, (char_u *)buf);
|
||
}
|
||
if (sourcing_name != NULL || sourcing_lnum > 0) {
|
||
ga_concat(gap, (char_u *)": ");
|
||
}
|
||
}
|
||
|
||
// Append "str" to "gap", escaping unprintable characters.
|
||
// Changes NL to \n, CR to \r, etc.
|
||
static void ga_concat_esc(garray_T *gap, char_u *str)
|
||
{
|
||
char_u *p;
|
||
char_u buf[NUMBUFLEN];
|
||
|
||
if (str == NULL) {
|
||
ga_concat(gap, (char_u *)"NULL");
|
||
return;
|
||
}
|
||
|
||
for (p = str; *p != NUL; p++) {
|
||
switch (*p) {
|
||
case BS: ga_concat(gap, (char_u *)"\\b"); break;
|
||
case ESC: ga_concat(gap, (char_u *)"\\e"); break;
|
||
case FF: ga_concat(gap, (char_u *)"\\f"); break;
|
||
case NL: ga_concat(gap, (char_u *)"\\n"); break;
|
||
case TAB: ga_concat(gap, (char_u *)"\\t"); break;
|
||
case CAR: ga_concat(gap, (char_u *)"\\r"); break;
|
||
case '\\': ga_concat(gap, (char_u *)"\\\\"); break;
|
||
default:
|
||
if (*p < ' ') {
|
||
vim_snprintf((char *)buf, NUMBUFLEN, "\\x%02x", *p);
|
||
ga_concat(gap, buf);
|
||
} else {
|
||
ga_append(gap, *p);
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
// Fill "gap" with information about an assert error.
|
||
void fill_assert_error(garray_T *gap, typval_T *opt_msg_tv,
|
||
char_u *exp_str, typval_T *exp_tv,
|
||
typval_T *got_tv, assert_type_T atype)
|
||
{
|
||
char_u *tofree;
|
||
|
||
if (opt_msg_tv->v_type != VAR_UNKNOWN) {
|
||
tofree = (char_u *)encode_tv2echo(opt_msg_tv, NULL);
|
||
ga_concat(gap, tofree);
|
||
xfree(tofree);
|
||
ga_concat(gap, (char_u *)": ");
|
||
}
|
||
|
||
if (atype == ASSERT_MATCH || atype == ASSERT_NOTMATCH) {
|
||
ga_concat(gap, (char_u *)"Pattern ");
|
||
} else if (atype == ASSERT_NOTEQUAL) {
|
||
ga_concat(gap, (char_u *)"Expected not equal to ");
|
||
} else {
|
||
ga_concat(gap, (char_u *)"Expected ");
|
||
}
|
||
|
||
if (exp_str == NULL) {
|
||
tofree = (char_u *)encode_tv2string(exp_tv, NULL);
|
||
ga_concat_esc(gap, tofree);
|
||
xfree(tofree);
|
||
} else {
|
||
ga_concat_esc(gap, exp_str);
|
||
}
|
||
|
||
if (atype != ASSERT_NOTEQUAL) {
|
||
if (atype == ASSERT_MATCH) {
|
||
ga_concat(gap, (char_u *)" does not match ");
|
||
} else if (atype == ASSERT_NOTMATCH) {
|
||
ga_concat(gap, (char_u *)" does match ");
|
||
} else {
|
||
ga_concat(gap, (char_u *)" but got ");
|
||
}
|
||
tofree = (char_u *)encode_tv2string(got_tv, NULL);
|
||
ga_concat_esc(gap, tofree);
|
||
xfree(tofree);
|
||
}
|
||
}
|
||
|
||
// Add an assert error to v:errors.
|
||
void assert_error(garray_T *gap)
|
||
{
|
||
struct vimvar *vp = &vimvars[VV_ERRORS];
|
||
|
||
if (vp->vv_type != VAR_LIST || vimvars[VV_ERRORS].vv_list == NULL) {
|
||
// Make sure v:errors is a list.
|
||
set_vim_var_list(VV_ERRORS, tv_list_alloc(1));
|
||
}
|
||
tv_list_append_string(vimvars[VV_ERRORS].vv_list,
|
||
(const char *)gap->ga_data, (ptrdiff_t)gap->ga_len);
|
||
}
|
||
|
||
int assert_equal_common(typval_T *argvars, assert_type_T atype)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
garray_T ga;
|
||
|
||
if (tv_equal(&argvars[0], &argvars[1], false, false)
|
||
!= (atype == ASSERT_EQUAL)) {
|
||
prepare_assert_error(&ga);
|
||
fill_assert_error(&ga, &argvars[2], NULL,
|
||
&argvars[0], &argvars[1], atype);
|
||
assert_error(&ga);
|
||
ga_clear(&ga);
|
||
return 1;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
int assert_equalfile(typval_T *argvars)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
char buf1[NUMBUFLEN];
|
||
char buf2[NUMBUFLEN];
|
||
const char *const fname1 = tv_get_string_buf_chk(&argvars[0], buf1);
|
||
const char *const fname2 = tv_get_string_buf_chk(&argvars[1], buf2);
|
||
garray_T ga;
|
||
|
||
if (fname1 == NULL || fname2 == NULL) {
|
||
return 0;
|
||
}
|
||
|
||
IObuff[0] = NUL;
|
||
FILE *const fd1 = os_fopen(fname1, READBIN);
|
||
if (fd1 == NULL) {
|
||
snprintf((char *)IObuff, IOSIZE, (char *)e_notread, fname1);
|
||
} else {
|
||
FILE *const fd2 = os_fopen(fname2, READBIN);
|
||
if (fd2 == NULL) {
|
||
fclose(fd1);
|
||
snprintf((char *)IObuff, IOSIZE, (char *)e_notread, fname2);
|
||
} else {
|
||
for (int64_t count = 0; ; count++) {
|
||
const int c1 = fgetc(fd1);
|
||
const int c2 = fgetc(fd2);
|
||
if (c1 == EOF) {
|
||
if (c2 != EOF) {
|
||
STRCPY(IObuff, "first file is shorter");
|
||
}
|
||
break;
|
||
} else if (c2 == EOF) {
|
||
STRCPY(IObuff, "second file is shorter");
|
||
break;
|
||
} else if (c1 != c2) {
|
||
snprintf((char *)IObuff, IOSIZE,
|
||
"difference at byte %" PRId64, count);
|
||
break;
|
||
}
|
||
}
|
||
fclose(fd1);
|
||
fclose(fd2);
|
||
}
|
||
}
|
||
if (IObuff[0] != NUL) {
|
||
prepare_assert_error(&ga);
|
||
ga_concat(&ga, IObuff);
|
||
assert_error(&ga);
|
||
ga_clear(&ga);
|
||
return 1;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
int assert_inrange(typval_T *argvars)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
bool error = false;
|
||
const varnumber_T lower = tv_get_number_chk(&argvars[0], &error);
|
||
const varnumber_T upper = tv_get_number_chk(&argvars[1], &error);
|
||
const varnumber_T actual = tv_get_number_chk(&argvars[2], &error);
|
||
|
||
if (error) {
|
||
return 0;
|
||
}
|
||
if (actual < lower || actual > upper) {
|
||
garray_T ga;
|
||
prepare_assert_error(&ga);
|
||
|
||
char msg[55];
|
||
vim_snprintf(msg, sizeof(msg),
|
||
"range %" PRIdVARNUMBER " - %" PRIdVARNUMBER ",",
|
||
lower, upper);
|
||
fill_assert_error(&ga, &argvars[3], (char_u *)msg, NULL, &argvars[2],
|
||
ASSERT_INRANGE);
|
||
assert_error(&ga);
|
||
ga_clear(&ga);
|
||
return 1;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
// Common for assert_true() and assert_false().
|
||
int assert_bool(typval_T *argvars, bool is_true)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
bool error = false;
|
||
garray_T ga;
|
||
|
||
if ((argvars[0].v_type != VAR_NUMBER
|
||
|| (tv_get_number_chk(&argvars[0], &error) == 0) == is_true
|
||
|| error)
|
||
&& (argvars[0].v_type != VAR_BOOL
|
||
|| (argvars[0].vval.v_bool
|
||
!= (BoolVarValue)(is_true
|
||
? kBoolVarTrue
|
||
: kBoolVarFalse)))) {
|
||
prepare_assert_error(&ga);
|
||
fill_assert_error(&ga, &argvars[1],
|
||
(char_u *)(is_true ? "True" : "False"),
|
||
NULL, &argvars[0], ASSERT_OTHER);
|
||
assert_error(&ga);
|
||
ga_clear(&ga);
|
||
return 1;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
int assert_exception(typval_T *argvars)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
garray_T ga;
|
||
|
||
const char *const error = tv_get_string_chk(&argvars[0]);
|
||
if (vimvars[VV_EXCEPTION].vv_str == NULL) {
|
||
prepare_assert_error(&ga);
|
||
ga_concat(&ga, (char_u *)"v:exception is not set");
|
||
assert_error(&ga);
|
||
ga_clear(&ga);
|
||
return 1;
|
||
} else if (error != NULL
|
||
&& strstr((char *)vimvars[VV_EXCEPTION].vv_str, error) == NULL) {
|
||
prepare_assert_error(&ga);
|
||
fill_assert_error(&ga, &argvars[1], NULL, &argvars[0],
|
||
&vimvars[VV_EXCEPTION].vv_tv, ASSERT_OTHER);
|
||
assert_error(&ga);
|
||
ga_clear(&ga);
|
||
return 1;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
int assert_fails(typval_T *argvars)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
const char *const cmd = tv_get_string_chk(&argvars[0]);
|
||
garray_T ga;
|
||
int ret = 0;
|
||
int save_trylevel = trylevel;
|
||
|
||
// trylevel must be zero for a ":throw" command to be considered failed
|
||
trylevel = 0;
|
||
called_emsg = false;
|
||
suppress_errthrow = true;
|
||
emsg_silent = true;
|
||
|
||
do_cmdline_cmd(cmd);
|
||
if (!called_emsg) {
|
||
prepare_assert_error(&ga);
|
||
ga_concat(&ga, (const char_u *)"command did not fail: ");
|
||
if (argvars[1].v_type != VAR_UNKNOWN
|
||
&& argvars[2].v_type != VAR_UNKNOWN) {
|
||
char *const tofree = encode_tv2echo(&argvars[2], NULL);
|
||
ga_concat(&ga, (char_u *)tofree);
|
||
xfree(tofree);
|
||
} else {
|
||
ga_concat(&ga, (const char_u *)cmd);
|
||
}
|
||
assert_error(&ga);
|
||
ga_clear(&ga);
|
||
ret = 1;
|
||
} else if (argvars[1].v_type != VAR_UNKNOWN) {
|
||
char buf[NUMBUFLEN];
|
||
const char *const error = tv_get_string_buf_chk(&argvars[1], buf);
|
||
|
||
if (error == NULL
|
||
|| strstr((char *)vimvars[VV_ERRMSG].vv_str, error) == NULL) {
|
||
prepare_assert_error(&ga);
|
||
fill_assert_error(&ga, &argvars[2], NULL, &argvars[1],
|
||
&vimvars[VV_ERRMSG].vv_tv, ASSERT_OTHER);
|
||
assert_error(&ga);
|
||
ga_clear(&ga);
|
||
ret = 1;
|
||
}
|
||
}
|
||
|
||
trylevel = save_trylevel;
|
||
called_emsg = false;
|
||
suppress_errthrow = false;
|
||
emsg_silent = false;
|
||
emsg_on_display = false;
|
||
set_vim_var_string(VV_ERRMSG, NULL, 0);
|
||
return ret;
|
||
}
|
||
|
||
int assert_match_common(typval_T *argvars, assert_type_T atype)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
char buf1[NUMBUFLEN];
|
||
char buf2[NUMBUFLEN];
|
||
const char *const pat = tv_get_string_buf_chk(&argvars[0], buf1);
|
||
const char *const text = tv_get_string_buf_chk(&argvars[1], buf2);
|
||
|
||
if (pat == NULL || text == NULL) {
|
||
EMSG(_(e_invarg));
|
||
} else if (pattern_match((char_u *)pat, (char_u *)text, false)
|
||
!= (atype == ASSERT_MATCH)) {
|
||
garray_T ga;
|
||
prepare_assert_error(&ga);
|
||
fill_assert_error(&ga, &argvars[2], NULL, &argvars[0], &argvars[1], atype);
|
||
assert_error(&ga);
|
||
ga_clear(&ga);
|
||
return 1;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
/// Find a window: When using a Window ID in any tab page, when using a number
|
||
/// in the current tab page.
|
||
win_T * find_win_by_nr_or_id(typval_T *vp)
|
||
{
|
||
int nr = (int)tv_get_number_chk(vp, NULL);
|
||
|
||
if (nr >= LOWEST_WIN_ID) {
|
||
return win_id2wp(vp);
|
||
}
|
||
|
||
return find_win_by_nr(vp, NULL);
|
||
}
|
||
|
||
/*
|
||
* Implementation of map() and filter().
|
||
*/
|
||
void filter_map(typval_T *argvars, typval_T *rettv, int map)
|
||
{
|
||
typval_T *expr;
|
||
list_T *l = NULL;
|
||
dictitem_T *di;
|
||
hashtab_T *ht;
|
||
hashitem_T *hi;
|
||
dict_T *d = NULL;
|
||
typval_T save_val;
|
||
typval_T save_key;
|
||
int rem = false;
|
||
int todo;
|
||
char_u *ermsg = (char_u *)(map ? "map()" : "filter()");
|
||
const char *const arg_errmsg = (map
|
||
? N_("map() argument")
|
||
: N_("filter() argument"));
|
||
int save_did_emsg;
|
||
int idx = 0;
|
||
|
||
if (argvars[0].v_type == VAR_LIST) {
|
||
tv_copy(&argvars[0], rettv);
|
||
if ((l = argvars[0].vval.v_list) == NULL
|
||
|| (!map && tv_check_lock(tv_list_locked(l), arg_errmsg,
|
||
TV_TRANSLATE))) {
|
||
return;
|
||
}
|
||
} else if (argvars[0].v_type == VAR_DICT) {
|
||
tv_copy(&argvars[0], rettv);
|
||
if ((d = argvars[0].vval.v_dict) == NULL
|
||
|| (!map && tv_check_lock(d->dv_lock, arg_errmsg, TV_TRANSLATE))) {
|
||
return;
|
||
}
|
||
} else {
|
||
EMSG2(_(e_listdictarg), ermsg);
|
||
return;
|
||
}
|
||
|
||
expr = &argvars[1];
|
||
// On type errors, the preceding call has already displayed an error
|
||
// message. Avoid a misleading error message for an empty string that
|
||
// was not passed as argument.
|
||
if (expr->v_type != VAR_UNKNOWN) {
|
||
prepare_vimvar(VV_VAL, &save_val);
|
||
|
||
// We reset "did_emsg" to be able to detect whether an error
|
||
// occurred during evaluation of the expression.
|
||
save_did_emsg = did_emsg;
|
||
did_emsg = FALSE;
|
||
|
||
prepare_vimvar(VV_KEY, &save_key);
|
||
if (argvars[0].v_type == VAR_DICT) {
|
||
vimvars[VV_KEY].vv_type = VAR_STRING;
|
||
|
||
ht = &d->dv_hashtab;
|
||
hash_lock(ht);
|
||
todo = (int)ht->ht_used;
|
||
for (hi = ht->ht_array; todo > 0; ++hi) {
|
||
if (!HASHITEM_EMPTY(hi)) {
|
||
--todo;
|
||
|
||
di = TV_DICT_HI2DI(hi);
|
||
if (map
|
||
&& (tv_check_lock(di->di_tv.v_lock, arg_errmsg, TV_TRANSLATE)
|
||
|| var_check_ro(di->di_flags, arg_errmsg, TV_TRANSLATE))) {
|
||
break;
|
||
}
|
||
|
||
vimvars[VV_KEY].vv_str = vim_strsave(di->di_key);
|
||
int r = filter_map_one(&di->di_tv, expr, map, &rem);
|
||
tv_clear(&vimvars[VV_KEY].vv_tv);
|
||
if (r == FAIL || did_emsg) {
|
||
break;
|
||
}
|
||
if (!map && rem) {
|
||
if (var_check_fixed(di->di_flags, arg_errmsg, TV_TRANSLATE)
|
||
|| var_check_ro(di->di_flags, arg_errmsg, TV_TRANSLATE)) {
|
||
break;
|
||
}
|
||
tv_dict_item_remove(d, di);
|
||
}
|
||
}
|
||
}
|
||
hash_unlock(ht);
|
||
} else {
|
||
assert(argvars[0].v_type == VAR_LIST);
|
||
vimvars[VV_KEY].vv_type = VAR_NUMBER;
|
||
|
||
for (listitem_T *li = tv_list_first(l); li != NULL;) {
|
||
if (map
|
||
&& tv_check_lock(TV_LIST_ITEM_TV(li)->v_lock, arg_errmsg,
|
||
TV_TRANSLATE)) {
|
||
break;
|
||
}
|
||
vimvars[VV_KEY].vv_nr = idx;
|
||
if (filter_map_one(TV_LIST_ITEM_TV(li), expr, map, &rem) == FAIL
|
||
|| did_emsg) {
|
||
break;
|
||
}
|
||
if (!map && rem) {
|
||
li = tv_list_item_remove(l, li);
|
||
} else {
|
||
li = TV_LIST_ITEM_NEXT(l, li);
|
||
}
|
||
idx++;
|
||
}
|
||
}
|
||
|
||
restore_vimvar(VV_KEY, &save_key);
|
||
restore_vimvar(VV_VAL, &save_val);
|
||
|
||
did_emsg |= save_did_emsg;
|
||
}
|
||
}
|
||
|
||
static int filter_map_one(typval_T *tv, typval_T *expr, int map, int *remp)
|
||
FUNC_ATTR_NONNULL_ARG(1, 2)
|
||
{
|
||
typval_T rettv;
|
||
typval_T argv[3];
|
||
int retval = FAIL;
|
||
|
||
tv_copy(tv, &vimvars[VV_VAL].vv_tv);
|
||
argv[0] = vimvars[VV_KEY].vv_tv;
|
||
argv[1] = vimvars[VV_VAL].vv_tv;
|
||
if (eval_expr_typval(expr, argv, 2, &rettv) == FAIL) {
|
||
goto theend;
|
||
}
|
||
if (map) {
|
||
// map(): replace the list item value.
|
||
tv_clear(tv);
|
||
rettv.v_lock = 0;
|
||
*tv = rettv;
|
||
} else {
|
||
bool error = false;
|
||
|
||
// filter(): when expr is zero remove the item
|
||
*remp = (tv_get_number_chk(&rettv, &error) == 0);
|
||
tv_clear(&rettv);
|
||
// On type error, nothing has been removed; return FAIL to stop the
|
||
// loop. The error message was given by tv_get_number_chk().
|
||
if (error) {
|
||
goto theend;
|
||
}
|
||
}
|
||
retval = OK;
|
||
theend:
|
||
tv_clear(&vimvars[VV_VAL].vv_tv);
|
||
return retval;
|
||
}
|
||
|
||
void common_function(typval_T *argvars, typval_T *rettv,
|
||
bool is_funcref, FunPtr fptr)
|
||
{
|
||
char_u *s;
|
||
char_u *name;
|
||
bool use_string = false;
|
||
partial_T *arg_pt = NULL;
|
||
char_u *trans_name = NULL;
|
||
|
||
if (argvars[0].v_type == VAR_FUNC) {
|
||
// function(MyFunc, [arg], dict)
|
||
s = argvars[0].vval.v_string;
|
||
} else if (argvars[0].v_type == VAR_PARTIAL
|
||
&& argvars[0].vval.v_partial != NULL) {
|
||
// function(dict.MyFunc, [arg])
|
||
arg_pt = argvars[0].vval.v_partial;
|
||
s = partial_name(arg_pt);
|
||
} else {
|
||
// function('MyFunc', [arg], dict)
|
||
s = (char_u *)tv_get_string(&argvars[0]);
|
||
use_string = true;
|
||
}
|
||
|
||
if ((use_string && vim_strchr(s, AUTOLOAD_CHAR) == NULL) || is_funcref) {
|
||
name = s;
|
||
trans_name = trans_function_name(&name, false,
|
||
TFN_INT | TFN_QUIET | TFN_NO_AUTOLOAD
|
||
| TFN_NO_DEREF, NULL, NULL);
|
||
if (*name != NUL) {
|
||
s = NULL;
|
||
}
|
||
}
|
||
if (s == NULL || *s == NUL || (use_string && ascii_isdigit(*s))
|
||
|| (is_funcref && trans_name == NULL)) {
|
||
emsgf(_(e_invarg2), (use_string
|
||
? tv_get_string(&argvars[0])
|
||
: (const char *)s));
|
||
// Don't check an autoload name for existence here.
|
||
} else if (trans_name != NULL
|
||
&& (is_funcref ? find_func(trans_name) == NULL
|
||
: !translated_function_exists((const char *)trans_name))) {
|
||
emsgf(_("E700: Unknown function: %s"), s);
|
||
} else {
|
||
int dict_idx = 0;
|
||
int arg_idx = 0;
|
||
list_T *list = NULL;
|
||
if (STRNCMP(s, "s:", 2) == 0 || STRNCMP(s, "<SID>", 5) == 0) {
|
||
char sid_buf[25];
|
||
int off = *s == 's' ? 2 : 5;
|
||
|
||
// Expand s: and <SID> into <SNR>nr_, so that the function can
|
||
// also be called from another script. Using trans_function_name()
|
||
// would also work, but some plugins depend on the name being
|
||
// printable text.
|
||
snprintf(sid_buf, sizeof(sid_buf), "<SNR>%" PRId64 "_",
|
||
(int64_t)current_sctx.sc_sid);
|
||
name = xmalloc(STRLEN(sid_buf) + STRLEN(s + off) + 1);
|
||
STRCPY(name, sid_buf);
|
||
STRCAT(name, s + off);
|
||
} else {
|
||
name = vim_strsave(s);
|
||
}
|
||
|
||
if (argvars[1].v_type != VAR_UNKNOWN) {
|
||
if (argvars[2].v_type != VAR_UNKNOWN) {
|
||
// function(name, [args], dict)
|
||
arg_idx = 1;
|
||
dict_idx = 2;
|
||
} else if (argvars[1].v_type == VAR_DICT) {
|
||
// function(name, dict)
|
||
dict_idx = 1;
|
||
} else {
|
||
// function(name, [args])
|
||
arg_idx = 1;
|
||
}
|
||
if (dict_idx > 0) {
|
||
if (argvars[dict_idx].v_type != VAR_DICT) {
|
||
EMSG(_("E922: expected a dict"));
|
||
xfree(name);
|
||
goto theend;
|
||
}
|
||
if (argvars[dict_idx].vval.v_dict == NULL) {
|
||
dict_idx = 0;
|
||
}
|
||
}
|
||
if (arg_idx > 0) {
|
||
if (argvars[arg_idx].v_type != VAR_LIST) {
|
||
EMSG(_("E923: Second argument of function() must be "
|
||
"a list or a dict"));
|
||
xfree(name);
|
||
goto theend;
|
||
}
|
||
list = argvars[arg_idx].vval.v_list;
|
||
if (tv_list_len(list) == 0) {
|
||
arg_idx = 0;
|
||
} else if (tv_list_len(list) > MAX_FUNC_ARGS) {
|
||
emsg_funcname((char *)e_toomanyarg, s);
|
||
xfree(name);
|
||
goto theend;
|
||
}
|
||
}
|
||
}
|
||
if (dict_idx > 0 || arg_idx > 0 || arg_pt != NULL || is_funcref) {
|
||
partial_T *const pt = xcalloc(1, sizeof(*pt));
|
||
|
||
// result is a VAR_PARTIAL
|
||
if (arg_idx > 0 || (arg_pt != NULL && arg_pt->pt_argc > 0)) {
|
||
const int arg_len = (arg_pt == NULL ? 0 : arg_pt->pt_argc);
|
||
const int lv_len = tv_list_len(list);
|
||
|
||
pt->pt_argc = arg_len + lv_len;
|
||
pt->pt_argv = xmalloc(sizeof(pt->pt_argv[0]) * pt->pt_argc);
|
||
int i = 0;
|
||
for (; i < arg_len; i++) {
|
||
tv_copy(&arg_pt->pt_argv[i], &pt->pt_argv[i]);
|
||
}
|
||
if (lv_len > 0) {
|
||
TV_LIST_ITER(list, li, {
|
||
tv_copy(TV_LIST_ITEM_TV(li), &pt->pt_argv[i++]);
|
||
});
|
||
}
|
||
}
|
||
|
||
// For "function(dict.func, [], dict)" and "func" is a partial
|
||
// use "dict". That is backwards compatible.
|
||
if (dict_idx > 0) {
|
||
// The dict is bound explicitly, pt_auto is false
|
||
pt->pt_dict = argvars[dict_idx].vval.v_dict;
|
||
(pt->pt_dict->dv_refcount)++;
|
||
} else if (arg_pt != NULL) {
|
||
// If the dict was bound automatically the result is also
|
||
// bound automatically.
|
||
pt->pt_dict = arg_pt->pt_dict;
|
||
pt->pt_auto = arg_pt->pt_auto;
|
||
if (pt->pt_dict != NULL) {
|
||
(pt->pt_dict->dv_refcount)++;
|
||
}
|
||
}
|
||
|
||
pt->pt_refcount = 1;
|
||
if (arg_pt != NULL && arg_pt->pt_func != NULL) {
|
||
pt->pt_func = arg_pt->pt_func;
|
||
func_ptr_ref(pt->pt_func);
|
||
xfree(name);
|
||
} else if (is_funcref) {
|
||
pt->pt_func = find_func(trans_name);
|
||
func_ptr_ref(pt->pt_func);
|
||
xfree(name);
|
||
} else {
|
||
pt->pt_name = name;
|
||
func_ref(name);
|
||
}
|
||
|
||
rettv->v_type = VAR_PARTIAL;
|
||
rettv->vval.v_partial = pt;
|
||
} else {
|
||
// result is a VAR_FUNC
|
||
rettv->v_type = VAR_FUNC;
|
||
rettv->vval.v_string = name;
|
||
func_ref(name);
|
||
}
|
||
}
|
||
theend:
|
||
xfree(trans_name);
|
||
}
|
||
|
||
/// Returns buffer options, variables and other attributes in a dictionary.
|
||
dict_T *get_buffer_info(buf_T *buf)
|
||
{
|
||
dict_T *const dict = tv_dict_alloc();
|
||
|
||
tv_dict_add_nr(dict, S_LEN("bufnr"), buf->b_fnum);
|
||
tv_dict_add_str(dict, S_LEN("name"),
|
||
buf->b_ffname != NULL ? (const char *)buf->b_ffname : "");
|
||
tv_dict_add_nr(dict, S_LEN("lnum"),
|
||
buf == curbuf ? curwin->w_cursor.lnum : buflist_findlnum(buf));
|
||
tv_dict_add_nr(dict, S_LEN("linecount"), buf->b_ml.ml_line_count);
|
||
tv_dict_add_nr(dict, S_LEN("loaded"), buf->b_ml.ml_mfp != NULL);
|
||
tv_dict_add_nr(dict, S_LEN("listed"), buf->b_p_bl);
|
||
tv_dict_add_nr(dict, S_LEN("changed"), bufIsChanged(buf));
|
||
tv_dict_add_nr(dict, S_LEN("changedtick"), buf_get_changedtick(buf));
|
||
tv_dict_add_nr(dict, S_LEN("hidden"),
|
||
buf->b_ml.ml_mfp != NULL && buf->b_nwindows == 0);
|
||
|
||
// Get a reference to buffer variables
|
||
tv_dict_add_dict(dict, S_LEN("variables"), buf->b_vars);
|
||
|
||
// List of windows displaying this buffer
|
||
list_T *const windows = tv_list_alloc(kListLenMayKnow);
|
||
FOR_ALL_TAB_WINDOWS(tp, wp) {
|
||
if (wp->w_buffer == buf) {
|
||
tv_list_append_number(windows, (varnumber_T)wp->handle);
|
||
}
|
||
}
|
||
tv_dict_add_list(dict, S_LEN("windows"), windows);
|
||
|
||
if (buf->b_signlist != NULL) {
|
||
// List of signs placed in this buffer
|
||
tv_dict_add_list(dict, S_LEN("signs"), get_buffer_signs(buf));
|
||
}
|
||
|
||
tv_dict_add_nr(dict, S_LEN("lastused"), buf->b_last_used);
|
||
|
||
return dict;
|
||
}
|
||
|
||
/// Get the line number from VimL object
|
||
///
|
||
/// @note Unlike tv_get_lnum(), this one supports only "$" special string.
|
||
///
|
||
/// @param[in] tv Object to get value from. Is expected to be a number or
|
||
/// a special string "$".
|
||
/// @param[in] buf Buffer to take last line number from in case tv is "$". May
|
||
/// be NULL, in this case "$" results in zero return.
|
||
///
|
||
/// @return Line number or 0 in case of error.
|
||
linenr_T tv_get_lnum_buf(const typval_T *const tv,
|
||
const buf_T *const buf)
|
||
FUNC_ATTR_NONNULL_ARG(1) FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
if (tv->v_type == VAR_STRING
|
||
&& tv->vval.v_string != NULL
|
||
&& tv->vval.v_string[0] == '$'
|
||
&& buf != NULL) {
|
||
return buf->b_ml.ml_line_count;
|
||
}
|
||
return tv_get_number_chk(tv, NULL);
|
||
}
|
||
|
||
void get_qf_loc_list(int is_qf, win_T *wp, typval_T *what_arg,
|
||
typval_T *rettv)
|
||
{
|
||
if (what_arg->v_type == VAR_UNKNOWN) {
|
||
tv_list_alloc_ret(rettv, kListLenMayKnow);
|
||
if (is_qf || wp != NULL) {
|
||
(void)get_errorlist(NULL, wp, -1, rettv->vval.v_list);
|
||
}
|
||
} else {
|
||
tv_dict_alloc_ret(rettv);
|
||
if (is_qf || wp != NULL) {
|
||
if (what_arg->v_type == VAR_DICT) {
|
||
dict_T *d = what_arg->vval.v_dict;
|
||
|
||
if (d != NULL) {
|
||
qf_get_properties(wp, d, rettv->vval.v_dict);
|
||
}
|
||
} else {
|
||
EMSG(_(e_dictreq));
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/// Returns information (variables, options, etc.) about a tab page
|
||
/// as a dictionary.
|
||
dict_T *get_tabpage_info(tabpage_T *tp, int tp_idx)
|
||
{
|
||
dict_T *const dict = tv_dict_alloc();
|
||
|
||
tv_dict_add_nr(dict, S_LEN("tabnr"), tp_idx);
|
||
|
||
list_T *const l = tv_list_alloc(kListLenMayKnow);
|
||
FOR_ALL_WINDOWS_IN_TAB(wp, tp) {
|
||
tv_list_append_number(l, (varnumber_T)wp->handle);
|
||
}
|
||
tv_dict_add_list(dict, S_LEN("windows"), l);
|
||
|
||
// Make a reference to tabpage variables
|
||
tv_dict_add_dict(dict, S_LEN("variables"), tp->tp_vars);
|
||
|
||
return dict;
|
||
}
|
||
|
||
/// Returns information about a window as a dictionary.
|
||
dict_T *get_win_info(win_T *wp, int16_t tpnr, int16_t winnr)
|
||
{
|
||
dict_T *const dict = tv_dict_alloc();
|
||
|
||
tv_dict_add_nr(dict, S_LEN("tabnr"), tpnr);
|
||
tv_dict_add_nr(dict, S_LEN("winnr"), winnr);
|
||
tv_dict_add_nr(dict, S_LEN("winid"), wp->handle);
|
||
tv_dict_add_nr(dict, S_LEN("height"), wp->w_height);
|
||
tv_dict_add_nr(dict, S_LEN("winrow"), wp->w_winrow + 1);
|
||
tv_dict_add_nr(dict, S_LEN("topline"), wp->w_topline);
|
||
tv_dict_add_nr(dict, S_LEN("botline"), wp->w_botline - 1);
|
||
tv_dict_add_nr(dict, S_LEN("winbar"), wp->w_winbar_height);
|
||
tv_dict_add_nr(dict, S_LEN("width"), wp->w_width);
|
||
tv_dict_add_nr(dict, S_LEN("bufnr"), wp->w_buffer->b_fnum);
|
||
tv_dict_add_nr(dict, S_LEN("wincol"), wp->w_wincol + 1);
|
||
|
||
tv_dict_add_nr(dict, S_LEN("terminal"), bt_terminal(wp->w_buffer));
|
||
tv_dict_add_nr(dict, S_LEN("quickfix"), bt_quickfix(wp->w_buffer));
|
||
tv_dict_add_nr(dict, S_LEN("loclist"),
|
||
(bt_quickfix(wp->w_buffer) && wp->w_llist_ref != NULL));
|
||
|
||
// Add a reference to window variables
|
||
tv_dict_add_dict(dict, S_LEN("variables"), wp->w_vars);
|
||
|
||
return dict;
|
||
}
|
||
|
||
// Find window specified by "vp" in tabpage "tp".
|
||
win_T *
|
||
find_win_by_nr(
|
||
typval_T *vp,
|
||
tabpage_T *tp // NULL for current tab page
|
||
)
|
||
{
|
||
int nr = (int)tv_get_number_chk(vp, NULL);
|
||
|
||
if (nr < 0) {
|
||
return NULL;
|
||
}
|
||
|
||
if (nr == 0) {
|
||
return curwin;
|
||
}
|
||
|
||
// This method accepts NULL as an alias for curtab.
|
||
if (tp == NULL) {
|
||
tp = curtab;
|
||
}
|
||
|
||
FOR_ALL_WINDOWS_IN_TAB(wp, tp) {
|
||
if (nr >= LOWEST_WIN_ID) {
|
||
if (wp->handle == nr) {
|
||
return wp;
|
||
}
|
||
} else if (--nr <= 0) {
|
||
return wp;
|
||
}
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
/// Find window specified by "wvp" in tabpage "tvp".
|
||
win_T *find_tabwin(typval_T *wvp, typval_T *tvp)
|
||
{
|
||
win_T *wp = NULL;
|
||
tabpage_T *tp = NULL;
|
||
|
||
if (wvp->v_type != VAR_UNKNOWN) {
|
||
if (tvp->v_type != VAR_UNKNOWN) {
|
||
long n = tv_get_number(tvp);
|
||
if (n >= 0) {
|
||
tp = find_tabpage(n);
|
||
}
|
||
} else {
|
||
tp = curtab;
|
||
}
|
||
|
||
if (tp != NULL) {
|
||
wp = find_win_by_nr(wvp, tp);
|
||
}
|
||
} else {
|
||
wp = curwin;
|
||
}
|
||
|
||
return wp;
|
||
}
|
||
|
||
/*
|
||
* getwinvar() and gettabwinvar()
|
||
*/
|
||
void
|
||
getwinvar(
|
||
typval_T *argvars,
|
||
typval_T *rettv,
|
||
int off // 1 for gettabwinvar()
|
||
)
|
||
{
|
||
win_T *win, *oldcurwin;
|
||
dictitem_T *v;
|
||
tabpage_T *tp = NULL;
|
||
tabpage_T *oldtabpage = NULL;
|
||
bool done = false;
|
||
|
||
if (off == 1) {
|
||
tp = find_tabpage((int)tv_get_number_chk(&argvars[0], NULL));
|
||
} else {
|
||
tp = curtab;
|
||
}
|
||
win = find_win_by_nr(&argvars[off], tp);
|
||
const char *varname = tv_get_string_chk(&argvars[off + 1]);
|
||
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = NULL;
|
||
|
||
emsg_off++;
|
||
if (win != NULL && varname != NULL) {
|
||
// Set curwin to be our win, temporarily. Also set the tabpage,
|
||
// otherwise the window is not valid. Only do this when needed,
|
||
// autocommands get blocked.
|
||
bool need_switch_win = tp != curtab || win != curwin;
|
||
if (!need_switch_win
|
||
|| switch_win(&oldcurwin, &oldtabpage, win, tp, true) == OK) {
|
||
if (*varname == '&') {
|
||
if (varname[1] == NUL) {
|
||
// get all window-local options in a dict
|
||
dict_T *opts = get_winbuf_options(false);
|
||
|
||
if (opts != NULL) {
|
||
tv_dict_set_ret(rettv, opts);
|
||
done = true;
|
||
}
|
||
} else if (get_option_tv(&varname, rettv, 1) == OK) {
|
||
// window-local-option
|
||
done = true;
|
||
}
|
||
} else {
|
||
// Look up the variable.
|
||
// Let getwinvar({nr}, "") return the "w:" dictionary.
|
||
v = find_var_in_ht(&win->w_vars->dv_hashtab, 'w', varname,
|
||
strlen(varname), false);
|
||
if (v != NULL) {
|
||
tv_copy(&v->di_tv, rettv);
|
||
done = true;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (need_switch_win) {
|
||
// restore previous notion of curwin
|
||
restore_win(oldcurwin, oldtabpage, true);
|
||
}
|
||
}
|
||
emsg_off--;
|
||
|
||
if (!done && argvars[off + 2].v_type != VAR_UNKNOWN) {
|
||
// use the default return value
|
||
tv_copy(&argvars[off + 2], rettv);
|
||
}
|
||
}
|
||
|
||
/*
|
||
* This function is used by f_input() and f_inputdialog() functions. The third
|
||
* argument to f_input() specifies the type of completion to use at the
|
||
* prompt. The third argument to f_inputdialog() specifies the value to return
|
||
* when the user cancels the prompt.
|
||
*/
|
||
void get_user_input(const typval_T *const argvars,
|
||
typval_T *const rettv,
|
||
const bool inputdialog,
|
||
const bool secret)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = NULL;
|
||
|
||
const char *prompt = "";
|
||
const char *defstr = "";
|
||
const char *cancelreturn = NULL;
|
||
const char *xp_name = NULL;
|
||
Callback input_callback = { .type = kCallbackNone };
|
||
char prompt_buf[NUMBUFLEN];
|
||
char defstr_buf[NUMBUFLEN];
|
||
char cancelreturn_buf[NUMBUFLEN];
|
||
char xp_name_buf[NUMBUFLEN];
|
||
char def[1] = { 0 };
|
||
if (argvars[0].v_type == VAR_DICT) {
|
||
if (argvars[1].v_type != VAR_UNKNOWN) {
|
||
EMSG(_("E5050: {opts} must be the only argument"));
|
||
return;
|
||
}
|
||
dict_T *const dict = argvars[0].vval.v_dict;
|
||
prompt = tv_dict_get_string_buf_chk(dict, S_LEN("prompt"), prompt_buf, "");
|
||
if (prompt == NULL) {
|
||
return;
|
||
}
|
||
defstr = tv_dict_get_string_buf_chk(dict, S_LEN("default"), defstr_buf, "");
|
||
if (defstr == NULL) {
|
||
return;
|
||
}
|
||
cancelreturn = tv_dict_get_string_buf_chk(dict, S_LEN("cancelreturn"),
|
||
cancelreturn_buf, def);
|
||
if (cancelreturn == NULL) { // error
|
||
return;
|
||
}
|
||
if (*cancelreturn == NUL) {
|
||
cancelreturn = NULL;
|
||
}
|
||
xp_name = tv_dict_get_string_buf_chk(dict, S_LEN("completion"),
|
||
xp_name_buf, def);
|
||
if (xp_name == NULL) { // error
|
||
return;
|
||
}
|
||
if (xp_name == def) { // default to NULL
|
||
xp_name = NULL;
|
||
}
|
||
if (!tv_dict_get_callback(dict, S_LEN("highlight"), &input_callback)) {
|
||
return;
|
||
}
|
||
} else {
|
||
prompt = tv_get_string_buf_chk(&argvars[0], prompt_buf);
|
||
if (prompt == NULL) {
|
||
return;
|
||
}
|
||
if (argvars[1].v_type != VAR_UNKNOWN) {
|
||
defstr = tv_get_string_buf_chk(&argvars[1], defstr_buf);
|
||
if (defstr == NULL) {
|
||
return;
|
||
}
|
||
if (argvars[2].v_type != VAR_UNKNOWN) {
|
||
const char *const arg2 = tv_get_string_buf_chk(&argvars[2],
|
||
cancelreturn_buf);
|
||
if (arg2 == NULL) {
|
||
return;
|
||
}
|
||
if (inputdialog) {
|
||
cancelreturn = arg2;
|
||
} else {
|
||
xp_name = arg2;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
int xp_type = EXPAND_NOTHING;
|
||
char *xp_arg = NULL;
|
||
if (xp_name != NULL) {
|
||
// input() with a third argument: completion
|
||
const int xp_namelen = (int)strlen(xp_name);
|
||
|
||
uint32_t argt;
|
||
if (parse_compl_arg((char_u *)xp_name, xp_namelen, &xp_type,
|
||
&argt, (char_u **)&xp_arg) == FAIL) {
|
||
return;
|
||
}
|
||
}
|
||
|
||
const bool cmd_silent_save = cmd_silent;
|
||
|
||
cmd_silent = false; // Want to see the prompt.
|
||
// Only the part of the message after the last NL is considered as
|
||
// prompt for the command line, unlsess cmdline is externalized
|
||
const char *p = prompt;
|
||
if (!ui_has(kUICmdline)) {
|
||
const char *lastnl = strrchr(prompt, '\n');
|
||
if (lastnl != NULL) {
|
||
p = lastnl+1;
|
||
msg_start();
|
||
msg_clr_eos();
|
||
msg_puts_attr_len(prompt, p - prompt, echo_attr);
|
||
msg_didout = false;
|
||
msg_starthere();
|
||
}
|
||
}
|
||
cmdline_row = msg_row;
|
||
|
||
stuffReadbuffSpec(defstr);
|
||
|
||
const int save_ex_normal_busy = ex_normal_busy;
|
||
ex_normal_busy = 0;
|
||
rettv->vval.v_string =
|
||
(char_u *)getcmdline_prompt(secret ? NUL : '@', p, echo_attr,
|
||
xp_type, xp_arg, input_callback);
|
||
ex_normal_busy = save_ex_normal_busy;
|
||
callback_free(&input_callback);
|
||
|
||
if (rettv->vval.v_string == NULL && cancelreturn != NULL) {
|
||
rettv->vval.v_string = (char_u *)xstrdup(cancelreturn);
|
||
}
|
||
|
||
xfree(xp_arg);
|
||
|
||
// Since the user typed this, no need to wait for return.
|
||
need_wait_return = false;
|
||
msg_didout = false;
|
||
cmd_silent = cmd_silent_save;
|
||
}
|
||
|
||
/// Turn a dictionary into a list
|
||
///
|
||
/// @param[in] tv Dictionary to convert. Is checked for actually being
|
||
/// a dictionary, will give an error if not.
|
||
/// @param[out] rettv Location where result will be saved.
|
||
/// @param[in] what What to save in rettv.
|
||
void dict_list(typval_T *const tv, typval_T *const rettv,
|
||
const DictListType what)
|
||
{
|
||
if (tv->v_type != VAR_DICT) {
|
||
EMSG(_(e_dictreq));
|
||
return;
|
||
}
|
||
if (tv->vval.v_dict == NULL) {
|
||
return;
|
||
}
|
||
|
||
tv_list_alloc_ret(rettv, tv_dict_len(tv->vval.v_dict));
|
||
|
||
TV_DICT_ITER(tv->vval.v_dict, di, {
|
||
typval_T tv_item = { .v_lock = VAR_UNLOCKED };
|
||
|
||
switch (what) {
|
||
case kDictListKeys: {
|
||
tv_item.v_type = VAR_STRING;
|
||
tv_item.vval.v_string = vim_strsave(di->di_key);
|
||
break;
|
||
}
|
||
case kDictListValues: {
|
||
tv_copy(&di->di_tv, &tv_item);
|
||
break;
|
||
}
|
||
case kDictListItems: {
|
||
// items()
|
||
list_T *const sub_l = tv_list_alloc(2);
|
||
tv_item.v_type = VAR_LIST;
|
||
tv_item.vval.v_list = sub_l;
|
||
tv_list_ref(sub_l);
|
||
|
||
tv_list_append_owned_tv(sub_l, (typval_T) {
|
||
.v_type = VAR_STRING,
|
||
.v_lock = VAR_UNLOCKED,
|
||
.vval.v_string = (char_u *)xstrdup((const char *)di->di_key),
|
||
});
|
||
|
||
tv_list_append_tv(sub_l, &di->di_tv);
|
||
|
||
break;
|
||
}
|
||
}
|
||
|
||
tv_list_append_owned_tv(rettv->vval.v_list, tv_item);
|
||
});
|
||
}
|
||
|
||
/// Builds a process argument vector from a VimL object (typval_T).
|
||
///
|
||
/// @param[in] cmd_tv VimL object
|
||
/// @param[out] cmd Returns the command or executable name.
|
||
/// @param[out] executable Returns `false` if argv[0] is not executable.
|
||
///
|
||
/// @returns Result of `shell_build_argv()` if `cmd_tv` is a String.
|
||
/// Else, string values of `cmd_tv` copied to a (char **) list with
|
||
/// argv[0] resolved to full path ($PATHEXT-resolved on Windows).
|
||
char **tv_to_argv(typval_T *cmd_tv, const char **cmd, bool *executable)
|
||
{
|
||
if (cmd_tv->v_type == VAR_STRING) { // String => "shell semantics".
|
||
const char *cmd_str = tv_get_string(cmd_tv);
|
||
if (cmd) {
|
||
*cmd = cmd_str;
|
||
}
|
||
return shell_build_argv(cmd_str, NULL);
|
||
}
|
||
|
||
if (cmd_tv->v_type != VAR_LIST) {
|
||
EMSG2(_(e_invarg2), "expected String or List");
|
||
return NULL;
|
||
}
|
||
|
||
list_T *argl = cmd_tv->vval.v_list;
|
||
int argc = tv_list_len(argl);
|
||
if (!argc) {
|
||
EMSG(_(e_invarg)); // List must have at least one item.
|
||
return NULL;
|
||
}
|
||
|
||
const char *arg0 = tv_get_string_chk(TV_LIST_ITEM_TV(tv_list_first(argl)));
|
||
char *exe_resolved = NULL;
|
||
if (!arg0 || !os_can_exe(arg0, &exe_resolved, true)) {
|
||
if (arg0 && executable) {
|
||
char buf[IOSIZE];
|
||
snprintf(buf, sizeof(buf), "'%s' is not executable", arg0);
|
||
EMSG3(_(e_invargNval), "cmd", buf);
|
||
*executable = false;
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
if (cmd) {
|
||
*cmd = exe_resolved;
|
||
}
|
||
|
||
// Build the argument vector
|
||
int i = 0;
|
||
char **argv = xcalloc(argc + 1, sizeof(char *));
|
||
TV_LIST_ITER_CONST(argl, arg, {
|
||
const char *a = tv_get_string_chk(TV_LIST_ITEM_TV(arg));
|
||
if (!a) {
|
||
// Did emsg in tv_get_string_chk; just deallocate argv.
|
||
shell_free_argv(argv);
|
||
xfree(exe_resolved);
|
||
return NULL;
|
||
}
|
||
argv[i++] = xstrdup(a);
|
||
});
|
||
// Replace argv[0] with absolute path. The only reason for this is to make
|
||
// $PATHEXT work on Windows with jobstart([…]). #9569
|
||
xfree(argv[0]);
|
||
argv[0] = exe_resolved;
|
||
|
||
return argv;
|
||
}
|
||
|
||
/// Fill a dictionary with all applicable maparg() like dictionaries
|
||
///
|
||
/// @param dict The dictionary to be filled
|
||
/// @param mp The maphash that contains the mapping information
|
||
/// @param buffer_value The "buffer" value
|
||
/// @param compatible True for compatible with old maparg() dict
|
||
void mapblock_fill_dict(dict_T *const dict,
|
||
const mapblock_T *const mp,
|
||
long buffer_value,
|
||
bool compatible)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
char *const lhs = str2special_save((const char *)mp->m_keys,
|
||
compatible, !compatible);
|
||
char *const mapmode = map_mode_to_chars(mp->m_mode);
|
||
varnumber_T noremap_value;
|
||
|
||
if (compatible) {
|
||
// Keep old compatible behavior
|
||
// This is unable to determine whether a mapping is a <script> mapping
|
||
noremap_value = !!mp->m_noremap;
|
||
} else {
|
||
// Distinguish between <script> mapping
|
||
// If it's not a <script> mapping, check if it's a noremap
|
||
noremap_value = mp->m_noremap == REMAP_SCRIPT ? 2 : !!mp->m_noremap;
|
||
}
|
||
|
||
if (compatible) {
|
||
tv_dict_add_str(dict, S_LEN("rhs"), (const char *)mp->m_orig_str);
|
||
} else {
|
||
tv_dict_add_allocated_str(dict, S_LEN("rhs"),
|
||
str2special_save((const char *)mp->m_str, false,
|
||
true));
|
||
}
|
||
tv_dict_add_allocated_str(dict, S_LEN("lhs"), lhs);
|
||
tv_dict_add_nr(dict, S_LEN("noremap"), noremap_value);
|
||
tv_dict_add_nr(dict, S_LEN("script"), mp->m_noremap == REMAP_SCRIPT ? 1 : 0);
|
||
tv_dict_add_nr(dict, S_LEN("expr"), mp->m_expr ? 1 : 0);
|
||
tv_dict_add_nr(dict, S_LEN("silent"), mp->m_silent ? 1 : 0);
|
||
tv_dict_add_nr(dict, S_LEN("sid"), (varnumber_T)mp->m_script_ctx.sc_sid);
|
||
tv_dict_add_nr(dict, S_LEN("lnum"), (varnumber_T)mp->m_script_ctx.sc_lnum);
|
||
tv_dict_add_nr(dict, S_LEN("buffer"), (varnumber_T)buffer_value);
|
||
tv_dict_add_nr(dict, S_LEN("nowait"), mp->m_nowait ? 1 : 0);
|
||
tv_dict_add_allocated_str(dict, S_LEN("mode"), mapmode);
|
||
}
|
||
|
||
int matchadd_dict_arg(typval_T *tv, const char **conceal_char,
|
||
win_T **win)
|
||
{
|
||
dictitem_T *di;
|
||
|
||
if (tv->v_type != VAR_DICT) {
|
||
EMSG(_(e_dictreq));
|
||
return FAIL;
|
||
}
|
||
|
||
if ((di = tv_dict_find(tv->vval.v_dict, S_LEN("conceal"))) != NULL) {
|
||
*conceal_char = tv_get_string(&di->di_tv);
|
||
}
|
||
|
||
if ((di = tv_dict_find(tv->vval.v_dict, S_LEN("window"))) != NULL) {
|
||
*win = find_win_by_nr_or_id(&di->di_tv);
|
||
if (*win == NULL) {
|
||
EMSG(_(e_invalwindow));
|
||
return FAIL;
|
||
}
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
void return_register(int regname, typval_T *rettv)
|
||
{
|
||
char_u buf[2] = { regname, 0 };
|
||
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = vim_strsave(buf);
|
||
}
|
||
|
||
void screenchar_adjust_grid(ScreenGrid **grid, int *row, int *col)
|
||
{
|
||
// TODO(bfredl): this is a hack for legacy tests which use screenchar()
|
||
// to check printed messages on the screen (but not floats etc
|
||
// as these are not legacy features). If the compositor is refactored to
|
||
// have its own buffer, this should just read from it instead.
|
||
msg_scroll_flush();
|
||
if (msg_grid.chars && msg_grid.comp_index > 0 && *row >= msg_grid.comp_row
|
||
&& *row < (msg_grid.Rows + msg_grid.comp_row)
|
||
&& *col < msg_grid.Columns) {
|
||
*grid = &msg_grid;
|
||
*row -= msg_grid.comp_row;
|
||
}
|
||
}
|
||
|
||
/// Set line or list of lines in buffer "buf".
|
||
void set_buffer_lines(buf_T *buf, linenr_T lnum_arg, bool append,
|
||
const typval_T *lines, typval_T *rettv)
|
||
FUNC_ATTR_NONNULL_ARG(4, 5)
|
||
{
|
||
linenr_T lnum = lnum_arg + (append ? 1 : 0);
|
||
const char *line = NULL;
|
||
list_T *l = NULL;
|
||
listitem_T *li = NULL;
|
||
long added = 0;
|
||
linenr_T append_lnum;
|
||
buf_T *curbuf_save = NULL;
|
||
win_T *curwin_save = NULL;
|
||
const bool is_curbuf = buf == curbuf;
|
||
|
||
// When using the current buffer ml_mfp will be set if needed. Useful when
|
||
// setline() is used on startup. For other buffers the buffer must be
|
||
// loaded.
|
||
if (buf == NULL || (!is_curbuf && buf->b_ml.ml_mfp == NULL) || lnum < 1) {
|
||
rettv->vval.v_number = 1; // FAIL
|
||
return;
|
||
}
|
||
|
||
if (!is_curbuf) {
|
||
curbuf_save = curbuf;
|
||
curwin_save = curwin;
|
||
curbuf = buf;
|
||
find_win_for_curbuf();
|
||
}
|
||
|
||
if (append) {
|
||
// appendbufline() uses the line number below which we insert
|
||
append_lnum = lnum - 1;
|
||
} else {
|
||
// setbufline() uses the line number above which we insert, we only
|
||
// append if it's below the last line
|
||
append_lnum = curbuf->b_ml.ml_line_count;
|
||
}
|
||
|
||
if (lines->v_type == VAR_LIST) {
|
||
l = lines->vval.v_list;
|
||
li = tv_list_first(l);
|
||
} else {
|
||
line = tv_get_string_chk(lines);
|
||
}
|
||
|
||
// Default result is zero == OK.
|
||
for (;; ) {
|
||
if (lines->v_type == VAR_LIST) {
|
||
// List argument, get next string.
|
||
if (li == NULL) {
|
||
break;
|
||
}
|
||
line = tv_get_string_chk(TV_LIST_ITEM_TV(li));
|
||
li = TV_LIST_ITEM_NEXT(l, li);
|
||
}
|
||
|
||
rettv->vval.v_number = 1; // FAIL
|
||
if (line == NULL || lnum > curbuf->b_ml.ml_line_count + 1) {
|
||
break;
|
||
}
|
||
|
||
// When coming here from Insert mode, sync undo, so that this can be
|
||
// undone separately from what was previously inserted.
|
||
if (u_sync_once == 2) {
|
||
u_sync_once = 1; // notify that u_sync() was called
|
||
u_sync(true);
|
||
}
|
||
|
||
if (!append && lnum <= curbuf->b_ml.ml_line_count) {
|
||
// Existing line, replace it.
|
||
if (u_savesub(lnum) == OK
|
||
&& ml_replace(lnum, (char_u *)line, true) == OK) {
|
||
changed_bytes(lnum, 0);
|
||
if (is_curbuf && lnum == curwin->w_cursor.lnum) {
|
||
check_cursor_col();
|
||
}
|
||
rettv->vval.v_number = 0; // OK
|
||
}
|
||
} else if (added > 0 || u_save(lnum - 1, lnum) == OK) {
|
||
// append the line.
|
||
added++;
|
||
if (ml_append(lnum - 1, (char_u *)line, 0, false) == OK) {
|
||
rettv->vval.v_number = 0; // OK
|
||
}
|
||
}
|
||
|
||
if (l == NULL) { // only one string argument
|
||
break;
|
||
}
|
||
lnum++;
|
||
}
|
||
|
||
if (added > 0) {
|
||
appended_lines_mark(append_lnum, added);
|
||
|
||
// Only adjust the cursor for buffers other than the current, unless it
|
||
// is the current window. For curbuf and other windows it has been done
|
||
// in mark_adjust_internal().
|
||
FOR_ALL_TAB_WINDOWS(tp, wp) {
|
||
if (wp->w_buffer == buf
|
||
&& (wp->w_buffer != curbuf || wp == curwin)
|
||
&& wp->w_cursor.lnum > append_lnum) {
|
||
wp->w_cursor.lnum += added;
|
||
}
|
||
}
|
||
check_cursor_col();
|
||
update_topline();
|
||
}
|
||
|
||
if (!is_curbuf) {
|
||
curbuf = curbuf_save;
|
||
curwin = curwin_save;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* "setwinvar()" and "settabwinvar()" functions
|
||
*/
|
||
|
||
void setwinvar(typval_T *argvars, typval_T *rettv, int off)
|
||
{
|
||
if (check_secure()) {
|
||
return;
|
||
}
|
||
|
||
tabpage_T *tp = NULL;
|
||
if (off == 1) {
|
||
tp = find_tabpage((int)tv_get_number_chk(&argvars[0], NULL));
|
||
} else {
|
||
tp = curtab;
|
||
}
|
||
win_T *const win = find_win_by_nr(&argvars[off], tp);
|
||
const char *varname = tv_get_string_chk(&argvars[off + 1]);
|
||
typval_T *varp = &argvars[off + 2];
|
||
|
||
if (win != NULL && varname != NULL && varp != NULL) {
|
||
win_T *save_curwin;
|
||
tabpage_T *save_curtab;
|
||
bool need_switch_win = tp != curtab || win != curwin;
|
||
if (!need_switch_win
|
||
|| switch_win(&save_curwin, &save_curtab, win, tp, true) == OK) {
|
||
if (*varname == '&') {
|
||
long numval;
|
||
bool error = false;
|
||
|
||
varname++;
|
||
numval = tv_get_number_chk(varp, &error);
|
||
char nbuf[NUMBUFLEN];
|
||
const char *const strval = tv_get_string_buf_chk(varp, nbuf);
|
||
if (!error && strval != NULL) {
|
||
set_option_value(varname, numval, strval, OPT_LOCAL);
|
||
}
|
||
} else {
|
||
const size_t varname_len = strlen(varname);
|
||
char *const winvarname = xmalloc(varname_len + 3);
|
||
memcpy(winvarname, "w:", 2);
|
||
memcpy(winvarname + 2, varname, varname_len + 1);
|
||
set_var(winvarname, varname_len + 2, varp, true);
|
||
xfree(winvarname);
|
||
}
|
||
}
|
||
if (need_switch_win) {
|
||
restore_win(save_curwin, save_curtab, true);
|
||
}
|
||
}
|
||
}
|
||
|
||
/// "stdpath()" helper for list results
|
||
void get_xdg_var_list(const XDGVarType xdg, typval_T *rettv)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
const void *iter = NULL;
|
||
list_T *const list = tv_list_alloc(kListLenShouldKnow);
|
||
rettv->v_type = VAR_LIST;
|
||
rettv->vval.v_list = list;
|
||
tv_list_ref(list);
|
||
char *const dirs = stdpaths_get_xdg_var(xdg);
|
||
if (dirs == NULL) {
|
||
return;
|
||
}
|
||
do {
|
||
size_t dir_len;
|
||
const char *dir;
|
||
iter = vim_env_iter(':', dirs, iter, &dir, &dir_len);
|
||
if (dir != NULL && dir_len > 0) {
|
||
char *dir_with_nvim = xmemdupz(dir, dir_len);
|
||
dir_with_nvim = concat_fnames_realloc(dir_with_nvim, "nvim", true);
|
||
tv_list_append_string(list, dir_with_nvim, strlen(dir_with_nvim));
|
||
xfree(dir_with_nvim);
|
||
}
|
||
} while (iter != NULL);
|
||
xfree(dirs);
|
||
}
|
||
|
||
static list_T *string_to_list(const char *str, size_t len, const bool keepempty)
|
||
{
|
||
if (!keepempty && str[len - 1] == NL) {
|
||
len--;
|
||
}
|
||
list_T *const list = tv_list_alloc(kListLenMayKnow);
|
||
encode_list_write(list, str, len);
|
||
return list;
|
||
}
|
||
|
||
// os_system wrapper. Handles 'verbose', :profile, and v:shell_error.
|
||
void get_system_output_as_rettv(typval_T *argvars, typval_T *rettv,
|
||
bool retlist)
|
||
{
|
||
proftime_T wait_time;
|
||
bool profiling = do_profiling == PROF_YES;
|
||
|
||
rettv->v_type = VAR_STRING;
|
||
rettv->vval.v_string = NULL;
|
||
|
||
if (check_restricted() || check_secure()) {
|
||
return;
|
||
}
|
||
|
||
// get input to the shell command (if any), and its length
|
||
ptrdiff_t input_len;
|
||
char *input = save_tv_as_string(&argvars[1], &input_len, false);
|
||
if (input_len < 0) {
|
||
assert(input == NULL);
|
||
return;
|
||
}
|
||
|
||
// get shell command to execute
|
||
bool executable = true;
|
||
char **argv = tv_to_argv(&argvars[0], NULL, &executable);
|
||
if (!argv) {
|
||
if (!executable) {
|
||
set_vim_var_nr(VV_SHELL_ERROR, (long)-1);
|
||
}
|
||
xfree(input);
|
||
return; // Already did emsg.
|
||
}
|
||
|
||
if (p_verbose > 3) {
|
||
char *cmdstr = shell_argv_to_str(argv);
|
||
verbose_enter_scroll();
|
||
smsg(_("Executing command: \"%s\""), cmdstr);
|
||
msg_puts("\n\n");
|
||
verbose_leave_scroll();
|
||
xfree(cmdstr);
|
||
}
|
||
|
||
if (profiling) {
|
||
prof_child_enter(&wait_time);
|
||
}
|
||
|
||
// execute the command
|
||
size_t nread = 0;
|
||
char *res = NULL;
|
||
int status = os_system(argv, input, input_len, &res, &nread);
|
||
|
||
if (profiling) {
|
||
prof_child_exit(&wait_time);
|
||
}
|
||
|
||
xfree(input);
|
||
|
||
set_vim_var_nr(VV_SHELL_ERROR, (long) status);
|
||
|
||
if (res == NULL) {
|
||
if (retlist) {
|
||
// return an empty list when there's no output
|
||
tv_list_alloc_ret(rettv, 0);
|
||
} else {
|
||
rettv->vval.v_string = (char_u *) xstrdup("");
|
||
}
|
||
return;
|
||
}
|
||
|
||
if (retlist) {
|
||
int keepempty = 0;
|
||
if (argvars[1].v_type != VAR_UNKNOWN && argvars[2].v_type != VAR_UNKNOWN) {
|
||
keepempty = tv_get_number(&argvars[2]);
|
||
}
|
||
rettv->vval.v_list = string_to_list(res, nread, (bool)keepempty);
|
||
tv_list_ref(rettv->vval.v_list);
|
||
rettv->v_type = VAR_LIST;
|
||
|
||
xfree(res);
|
||
} else {
|
||
// res may contain several NULs before the final terminating one.
|
||
// Replace them with SOH (1) like in get_cmd_output() to avoid truncation.
|
||
memchrsub(res, NUL, 1, nread);
|
||
#ifdef USE_CRNL
|
||
// translate <CR><NL> into <NL>
|
||
char *d = res;
|
||
for (char *s = res; *s; ++s) {
|
||
if (s[0] == CAR && s[1] == NL) {
|
||
++s;
|
||
}
|
||
|
||
*d++ = *s;
|
||
}
|
||
|
||
*d = NUL;
|
||
#endif
|
||
rettv->vval.v_string = (char_u *) res;
|
||
}
|
||
}
|
||
|
||
bool callback_from_typval(Callback *const callback, typval_T *const arg)
|
||
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
int r = OK;
|
||
|
||
if (arg->v_type == VAR_PARTIAL && arg->vval.v_partial != NULL) {
|
||
callback->data.partial = arg->vval.v_partial;
|
||
callback->data.partial->pt_refcount++;
|
||
callback->type = kCallbackPartial;
|
||
} else if (arg->v_type == VAR_STRING
|
||
&& arg->vval.v_string != NULL
|
||
&& ascii_isdigit(*arg->vval.v_string)) {
|
||
r = FAIL;
|
||
} else if (arg->v_type == VAR_FUNC || arg->v_type == VAR_STRING) {
|
||
char_u *name = arg->vval.v_string;
|
||
func_ref(name);
|
||
callback->data.funcref = vim_strsave(name);
|
||
callback->type = kCallbackFuncref;
|
||
} else if (arg->v_type == VAR_NUMBER && arg->vval.v_number == 0) {
|
||
callback->type = kCallbackNone;
|
||
} else {
|
||
r = FAIL;
|
||
}
|
||
|
||
if (r == FAIL) {
|
||
EMSG(_("E921: Invalid callback argument"));
|
||
return false;
|
||
}
|
||
return true;
|
||
}
|
||
|
||
bool callback_call(Callback *const callback, const int argcount_in,
|
||
typval_T *const argvars_in, typval_T *const rettv)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
partial_T *partial;
|
||
char_u *name;
|
||
switch (callback->type) {
|
||
case kCallbackFuncref:
|
||
name = callback->data.funcref;
|
||
partial = NULL;
|
||
break;
|
||
|
||
case kCallbackPartial:
|
||
partial = callback->data.partial;
|
||
name = partial_name(partial);
|
||
break;
|
||
|
||
case kCallbackNone:
|
||
return false;
|
||
break;
|
||
|
||
default:
|
||
abort();
|
||
}
|
||
|
||
int dummy;
|
||
return call_func(name, (int)STRLEN(name), rettv, argcount_in, argvars_in,
|
||
NULL, curwin->w_cursor.lnum, curwin->w_cursor.lnum, &dummy,
|
||
true, partial, NULL);
|
||
}
|
||
|
||
static bool set_ref_in_callback(Callback *callback, int copyID,
|
||
ht_stack_T **ht_stack,
|
||
list_stack_T **list_stack)
|
||
{
|
||
typval_T tv;
|
||
switch (callback->type) {
|
||
case kCallbackFuncref:
|
||
case kCallbackNone:
|
||
break;
|
||
|
||
case kCallbackPartial:
|
||
tv.v_type = VAR_PARTIAL;
|
||
tv.vval.v_partial = callback->data.partial;
|
||
return set_ref_in_item(&tv, copyID, ht_stack, list_stack);
|
||
break;
|
||
|
||
|
||
default:
|
||
abort();
|
||
}
|
||
return false;
|
||
}
|
||
|
||
static bool set_ref_in_callback_reader(CallbackReader *reader, int copyID,
|
||
ht_stack_T **ht_stack,
|
||
list_stack_T **list_stack)
|
||
{
|
||
if (set_ref_in_callback(&reader->cb, copyID, ht_stack, list_stack)) {
|
||
return true;
|
||
}
|
||
|
||
if (reader->self) {
|
||
typval_T tv;
|
||
tv.v_type = VAR_DICT;
|
||
tv.vval.v_dict = reader->self;
|
||
return set_ref_in_item(&tv, copyID, ht_stack, list_stack);
|
||
}
|
||
return false;
|
||
}
|
||
|
||
timer_T *find_timer_by_nr(varnumber_T xx)
|
||
{
|
||
return pmap_get(uint64_t)(timers, xx);
|
||
}
|
||
|
||
void add_timer_info(typval_T *rettv, timer_T *timer)
|
||
{
|
||
list_T *list = rettv->vval.v_list;
|
||
dict_T *dict = tv_dict_alloc();
|
||
|
||
tv_list_append_dict(list, dict);
|
||
tv_dict_add_nr(dict, S_LEN("id"), timer->timer_id);
|
||
tv_dict_add_nr(dict, S_LEN("time"), timer->timeout);
|
||
tv_dict_add_nr(dict, S_LEN("paused"), timer->paused);
|
||
|
||
tv_dict_add_nr(dict, S_LEN("repeat"),
|
||
(timer->repeat_count < 0 ? -1 : timer->repeat_count));
|
||
|
||
dictitem_T *di = tv_dict_item_alloc("callback");
|
||
if (tv_dict_add(dict, di) == FAIL) {
|
||
xfree(di);
|
||
return;
|
||
}
|
||
|
||
if (timer->callback.type == kCallbackPartial) {
|
||
di->di_tv.v_type = VAR_PARTIAL;
|
||
di->di_tv.vval.v_partial = timer->callback.data.partial;
|
||
timer->callback.data.partial->pt_refcount++;
|
||
} else if (timer->callback.type == kCallbackFuncref) {
|
||
di->di_tv.v_type = VAR_FUNC;
|
||
di->di_tv.vval.v_string = vim_strsave(timer->callback.data.funcref);
|
||
}
|
||
}
|
||
|
||
void add_timer_info_all(typval_T *rettv)
|
||
{
|
||
tv_list_alloc_ret(rettv, timers->table->n_occupied);
|
||
timer_T *timer;
|
||
map_foreach_value(timers, timer, {
|
||
if (!timer->stopped) {
|
||
add_timer_info(rettv, timer);
|
||
}
|
||
})
|
||
}
|
||
|
||
// invoked on the main loop
|
||
void timer_due_cb(TimeWatcher *tw, void *data)
|
||
{
|
||
timer_T *timer = (timer_T *)data;
|
||
int save_did_emsg = did_emsg;
|
||
int save_called_emsg = called_emsg;
|
||
const bool save_ex_pressedreturn = get_pressedreturn();
|
||
|
||
if (timer->stopped || timer->paused) {
|
||
return;
|
||
}
|
||
|
||
timer->refcount++;
|
||
// if repeat was negative repeat forever
|
||
if (timer->repeat_count >= 0 && --timer->repeat_count == 0) {
|
||
timer_stop(timer);
|
||
}
|
||
|
||
typval_T argv[2] = { TV_INITIAL_VALUE, TV_INITIAL_VALUE };
|
||
argv[0].v_type = VAR_NUMBER;
|
||
argv[0].vval.v_number = timer->timer_id;
|
||
typval_T rettv = TV_INITIAL_VALUE;
|
||
called_emsg = false;
|
||
|
||
callback_call(&timer->callback, 1, argv, &rettv);
|
||
|
||
// Handle error message
|
||
if (called_emsg && did_emsg) {
|
||
timer->emsg_count++;
|
||
if (current_exception != NULL) {
|
||
discard_current_exception();
|
||
}
|
||
}
|
||
did_emsg = save_did_emsg;
|
||
called_emsg = save_called_emsg;
|
||
set_pressedreturn(save_ex_pressedreturn);
|
||
|
||
if (timer->emsg_count >= 3) {
|
||
timer_stop(timer);
|
||
}
|
||
|
||
tv_clear(&rettv);
|
||
|
||
if (!timer->stopped && timer->timeout == 0) {
|
||
// special case: timeout=0 means the callback will be
|
||
// invoked again on the next event loop tick.
|
||
// we don't use uv_idle_t to not spin the event loop
|
||
// when the main loop is blocked.
|
||
time_watcher_start(&timer->tw, timer_due_cb, 0, 0);
|
||
}
|
||
timer_decref(timer);
|
||
}
|
||
|
||
uint64_t timer_start(const long timeout,
|
||
const int repeat_count,
|
||
const Callback *const callback)
|
||
{
|
||
timer_T *timer = xmalloc(sizeof *timer);
|
||
timer->refcount = 1;
|
||
timer->stopped = false;
|
||
timer->paused = false;
|
||
timer->emsg_count = 0;
|
||
timer->repeat_count = repeat_count;
|
||
timer->timeout = timeout;
|
||
timer->timer_id = last_timer_id++;
|
||
timer->callback = *callback;
|
||
|
||
time_watcher_init(&main_loop, &timer->tw, timer);
|
||
timer->tw.events = multiqueue_new_child(main_loop.events);
|
||
// if main loop is blocked, don't queue up multiple events
|
||
timer->tw.blockable = true;
|
||
time_watcher_start(&timer->tw, timer_due_cb, timeout, timeout);
|
||
|
||
pmap_put(uint64_t)(timers, timer->timer_id, timer);
|
||
return timer->timer_id;
|
||
}
|
||
|
||
void timer_stop(timer_T *timer)
|
||
{
|
||
if (timer->stopped) {
|
||
// avoid double free
|
||
return;
|
||
}
|
||
timer->stopped = true;
|
||
time_watcher_stop(&timer->tw);
|
||
time_watcher_close(&timer->tw, timer_close_cb);
|
||
}
|
||
|
||
// This will be run on the main loop after the last timer_due_cb, so at this
|
||
// point it is safe to free the callback.
|
||
static void timer_close_cb(TimeWatcher *tw, void *data)
|
||
{
|
||
timer_T *timer = (timer_T *)data;
|
||
multiqueue_free(timer->tw.events);
|
||
callback_free(&timer->callback);
|
||
pmap_del(uint64_t)(timers, timer->timer_id);
|
||
timer_decref(timer);
|
||
}
|
||
|
||
static void timer_decref(timer_T *timer)
|
||
{
|
||
if (--timer->refcount == 0) {
|
||
xfree(timer);
|
||
}
|
||
}
|
||
|
||
void timer_stop_all(void)
|
||
{
|
||
timer_T *timer;
|
||
map_foreach_value(timers, timer, {
|
||
timer_stop(timer);
|
||
})
|
||
}
|
||
|
||
void timer_teardown(void)
|
||
{
|
||
timer_stop_all();
|
||
}
|
||
|
||
/// Write "list" of strings to file "fd".
|
||
///
|
||
/// @param fp File to write to.
|
||
/// @param[in] list List to write.
|
||
/// @param[in] binary Whether to write in binary mode.
|
||
///
|
||
/// @return true in case of success, false otherwise.
|
||
bool write_list(FileDescriptor *const fp, const list_T *const list,
|
||
const bool binary)
|
||
FUNC_ATTR_NONNULL_ARG(1)
|
||
{
|
||
int error = 0;
|
||
TV_LIST_ITER_CONST(list, li, {
|
||
const char *const s = tv_get_string_chk(TV_LIST_ITEM_TV(li));
|
||
if (s == NULL) {
|
||
return false;
|
||
}
|
||
const char *hunk_start = s;
|
||
for (const char *p = hunk_start;; p++) {
|
||
if (*p == NUL || *p == NL) {
|
||
if (p != hunk_start) {
|
||
const ptrdiff_t written = file_write(fp, hunk_start,
|
||
(size_t)(p - hunk_start));
|
||
if (written < 0) {
|
||
error = (int)written;
|
||
goto write_list_error;
|
||
}
|
||
}
|
||
if (*p == NUL) {
|
||
break;
|
||
} else {
|
||
hunk_start = p + 1;
|
||
const ptrdiff_t written = file_write(fp, (char[]){ NUL }, 1);
|
||
if (written < 0) {
|
||
error = (int)written;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
if (!binary || TV_LIST_ITEM_NEXT(list, li) != NULL) {
|
||
const ptrdiff_t written = file_write(fp, "\n", 1);
|
||
if (written < 0) {
|
||
error = (int)written;
|
||
goto write_list_error;
|
||
}
|
||
}
|
||
});
|
||
if ((error = file_flush(fp)) != 0) {
|
||
goto write_list_error;
|
||
}
|
||
return true;
|
||
write_list_error:
|
||
emsgf(_("E80: Error while writing: %s"), os_strerror(error));
|
||
return false;
|
||
}
|
||
|
||
/// Saves a typval_T as a string.
|
||
///
|
||
/// For lists or buffers, replaces NLs with NUL and separates items with NLs.
|
||
///
|
||
/// @param[in] tv Value to store as a string.
|
||
/// @param[out] len Length of the resulting string or -1 on error.
|
||
/// @param[in] endnl If true, the output will end in a newline (if a list).
|
||
/// @returns an allocated string if `tv` represents a VimL string, list, or
|
||
/// number; NULL otherwise.
|
||
char *save_tv_as_string(typval_T *tv, ptrdiff_t *const len, bool endnl)
|
||
FUNC_ATTR_MALLOC FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
*len = 0;
|
||
if (tv->v_type == VAR_UNKNOWN) {
|
||
return NULL;
|
||
}
|
||
|
||
// For other types, let tv_get_string_buf_chk() get the value or
|
||
// print an error.
|
||
if (tv->v_type != VAR_LIST && tv->v_type != VAR_NUMBER) {
|
||
const char *ret = tv_get_string_chk(tv);
|
||
if (ret) {
|
||
*len = strlen(ret);
|
||
return xmemdupz(ret, (size_t)(*len));
|
||
} else {
|
||
*len = -1;
|
||
return NULL;
|
||
}
|
||
}
|
||
|
||
if (tv->v_type == VAR_NUMBER) { // Treat number as a buffer-id.
|
||
buf_T *buf = buflist_findnr(tv->vval.v_number);
|
||
if (buf) {
|
||
for (linenr_T lnum = 1; lnum <= buf->b_ml.ml_line_count; lnum++) {
|
||
for (char_u *p = ml_get_buf(buf, lnum, false); *p != NUL; p++) {
|
||
*len += 1;
|
||
}
|
||
*len += 1;
|
||
}
|
||
} else {
|
||
EMSGN(_(e_nobufnr), tv->vval.v_number);
|
||
*len = -1;
|
||
return NULL;
|
||
}
|
||
|
||
if (*len == 0) {
|
||
return NULL;
|
||
}
|
||
|
||
char *ret = xmalloc(*len + 1);
|
||
char *end = ret;
|
||
for (linenr_T lnum = 1; lnum <= buf->b_ml.ml_line_count; lnum++) {
|
||
for (char_u *p = ml_get_buf(buf, lnum, false); *p != NUL; p++) {
|
||
*end++ = (*p == '\n') ? NUL : *p;
|
||
}
|
||
*end++ = '\n';
|
||
}
|
||
*end = NUL;
|
||
*len = end - ret;
|
||
return ret;
|
||
}
|
||
|
||
assert(tv->v_type == VAR_LIST);
|
||
// Pre-calculate the resulting length.
|
||
list_T *list = tv->vval.v_list;
|
||
TV_LIST_ITER_CONST(list, li, {
|
||
*len += strlen(tv_get_string(TV_LIST_ITEM_TV(li))) + 1;
|
||
});
|
||
|
||
if (*len == 0) {
|
||
return NULL;
|
||
}
|
||
|
||
char *ret = xmalloc(*len + endnl);
|
||
char *end = ret;
|
||
TV_LIST_ITER_CONST(list, li, {
|
||
for (const char *s = tv_get_string(TV_LIST_ITEM_TV(li)); *s != NUL; s++) {
|
||
*end++ = (*s == '\n') ? NUL : *s;
|
||
}
|
||
if (endnl || TV_LIST_ITEM_NEXT(list, li) != NULL) {
|
||
*end++ = '\n';
|
||
}
|
||
});
|
||
*end = NUL;
|
||
*len = end - ret;
|
||
return ret;
|
||
}
|
||
|
||
/// Translate a VimL object into a position
|
||
///
|
||
/// Accepts VAR_LIST and VAR_STRING objects. Does not give an error for invalid
|
||
/// type.
|
||
///
|
||
/// @param[in] tv Object to translate.
|
||
/// @param[in] dollar_lnum True when "$" is last line.
|
||
/// @param[out] ret_fnum Set to fnum for marks.
|
||
///
|
||
/// @return Pointer to position or NULL in case of error (e.g. invalid type).
|
||
pos_T *var2fpos(const typval_T *const tv, const int dollar_lnum,
|
||
int *const ret_fnum)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
static pos_T pos;
|
||
pos_T *pp;
|
||
|
||
// Argument can be [lnum, col, coladd].
|
||
if (tv->v_type == VAR_LIST) {
|
||
list_T *l;
|
||
int len;
|
||
bool error = false;
|
||
listitem_T *li;
|
||
|
||
l = tv->vval.v_list;
|
||
if (l == NULL) {
|
||
return NULL;
|
||
}
|
||
|
||
// Get the line number.
|
||
pos.lnum = tv_list_find_nr(l, 0L, &error);
|
||
if (error || pos.lnum <= 0 || pos.lnum > curbuf->b_ml.ml_line_count) {
|
||
// Invalid line number.
|
||
return NULL;
|
||
}
|
||
|
||
// Get the column number.
|
||
pos.col = tv_list_find_nr(l, 1L, &error);
|
||
if (error) {
|
||
return NULL;
|
||
}
|
||
len = (long)STRLEN(ml_get(pos.lnum));
|
||
|
||
// We accept "$" for the column number: last column.
|
||
li = tv_list_find(l, 1L);
|
||
if (li != NULL && TV_LIST_ITEM_TV(li)->v_type == VAR_STRING
|
||
&& TV_LIST_ITEM_TV(li)->vval.v_string != NULL
|
||
&& STRCMP(TV_LIST_ITEM_TV(li)->vval.v_string, "$") == 0) {
|
||
pos.col = len + 1;
|
||
}
|
||
|
||
// Accept a position up to the NUL after the line.
|
||
if (pos.col == 0 || (int)pos.col > len + 1) {
|
||
// Invalid column number.
|
||
return NULL;
|
||
}
|
||
pos.col--;
|
||
|
||
// Get the virtual offset. Defaults to zero.
|
||
pos.coladd = tv_list_find_nr(l, 2L, &error);
|
||
if (error) {
|
||
pos.coladd = 0;
|
||
}
|
||
|
||
return &pos;
|
||
}
|
||
|
||
const char *const name = tv_get_string_chk(tv);
|
||
if (name == NULL) {
|
||
return NULL;
|
||
}
|
||
if (name[0] == '.') { // Cursor.
|
||
return &curwin->w_cursor;
|
||
}
|
||
if (name[0] == 'v' && name[1] == NUL) { // Visual start.
|
||
if (VIsual_active) {
|
||
return &VIsual;
|
||
}
|
||
return &curwin->w_cursor;
|
||
}
|
||
if (name[0] == '\'') { // Mark.
|
||
pp = getmark_buf_fnum(curbuf, (uint8_t)name[1], false, ret_fnum);
|
||
if (pp == NULL || pp == (pos_T *)-1 || pp->lnum <= 0) {
|
||
return NULL;
|
||
}
|
||
return pp;
|
||
}
|
||
|
||
pos.coladd = 0;
|
||
|
||
if (name[0] == 'w' && dollar_lnum) {
|
||
pos.col = 0;
|
||
if (name[1] == '0') { // "w0": first visible line
|
||
update_topline();
|
||
// In silent Ex mode topline is zero, but that's not a valid line
|
||
// number; use one instead.
|
||
pos.lnum = curwin->w_topline > 0 ? curwin->w_topline : 1;
|
||
return &pos;
|
||
} else if (name[1] == '$') { // "w$": last visible line
|
||
validate_botline();
|
||
// In silent Ex mode botline is zero, return zero then.
|
||
pos.lnum = curwin->w_botline > 0 ? curwin->w_botline - 1 : 0;
|
||
return &pos;
|
||
}
|
||
} else if (name[0] == '$') { // last column or line
|
||
if (dollar_lnum) {
|
||
pos.lnum = curbuf->b_ml.ml_line_count;
|
||
pos.col = 0;
|
||
} else {
|
||
pos.lnum = curwin->w_cursor.lnum;
|
||
pos.col = (colnr_T)STRLEN(get_cursor_line_ptr());
|
||
}
|
||
return &pos;
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
/*
|
||
* Convert list in "arg" into a position and optional file number.
|
||
* When "fnump" is NULL there is no file number, only 3 items.
|
||
* Note that the column is passed on as-is, the caller may want to decrement
|
||
* it to use 1 for the first column.
|
||
* Return FAIL when conversion is not possible, doesn't check the position for
|
||
* validity.
|
||
*/
|
||
int list2fpos(typval_T *arg, pos_T *posp, int *fnump, colnr_T *curswantp)
|
||
{
|
||
list_T *l;
|
||
long i = 0;
|
||
long n;
|
||
|
||
// List must be: [fnum, lnum, col, coladd, curswant], where "fnum" is only
|
||
// there when "fnump" isn't NULL; "coladd" and "curswant" are optional.
|
||
if (arg->v_type != VAR_LIST
|
||
|| (l = arg->vval.v_list) == NULL
|
||
|| tv_list_len(l) < (fnump == NULL ? 2 : 3)
|
||
|| tv_list_len(l) > (fnump == NULL ? 4 : 5)) {
|
||
return FAIL;
|
||
}
|
||
|
||
if (fnump != NULL) {
|
||
n = tv_list_find_nr(l, i++, NULL); // fnum
|
||
if (n < 0) {
|
||
return FAIL;
|
||
}
|
||
if (n == 0) {
|
||
n = curbuf->b_fnum; // Current buffer.
|
||
}
|
||
*fnump = n;
|
||
}
|
||
|
||
n = tv_list_find_nr(l, i++, NULL); // lnum
|
||
if (n < 0) {
|
||
return FAIL;
|
||
}
|
||
posp->lnum = n;
|
||
|
||
n = tv_list_find_nr(l, i++, NULL); // col
|
||
if (n < 0) {
|
||
return FAIL;
|
||
}
|
||
posp->col = n;
|
||
|
||
n = tv_list_find_nr(l, i, NULL); // off
|
||
if (n < 0) {
|
||
posp->coladd = 0;
|
||
} else {
|
||
posp->coladd = n;
|
||
}
|
||
|
||
if (curswantp != NULL) {
|
||
*curswantp = tv_list_find_nr(l, i + 1, NULL); // curswant
|
||
}
|
||
|
||
return OK;
|
||
}
|
||
|
||
/*
|
||
* Get the length of an environment variable name.
|
||
* Advance "arg" to the first character after the name.
|
||
* Return 0 for error.
|
||
*/
|
||
static int get_env_len(const char_u **arg)
|
||
{
|
||
int len;
|
||
|
||
const char_u *p;
|
||
for (p = *arg; vim_isIDc(*p); p++) {
|
||
}
|
||
if (p == *arg) { // No name found.
|
||
return 0;
|
||
}
|
||
|
||
len = (int)(p - *arg);
|
||
*arg = p;
|
||
return len;
|
||
}
|
||
|
||
// Get the length of the name of a function or internal variable.
|
||
// "arg" is advanced to the first non-white character after the name.
|
||
// Return 0 if something is wrong.
|
||
int get_id_len(const char **const arg)
|
||
{
|
||
int len;
|
||
|
||
// Find the end of the name.
|
||
const char *p;
|
||
for (p = *arg; eval_isnamec(*p); p++) {
|
||
if (*p == ':') {
|
||
// "s:" is start of "s:var", but "n:" is not and can be used in
|
||
// slice "[n:]". Also "xx:" is not a namespace.
|
||
len = (int)(p - *arg);
|
||
if (len > 1
|
||
|| (len == 1 && vim_strchr(namespace_char, **arg) == NULL)) {
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
if (p == *arg) { // no name found
|
||
return 0;
|
||
}
|
||
|
||
len = (int)(p - *arg);
|
||
*arg = (const char *)skipwhite((const char_u *)p);
|
||
|
||
return len;
|
||
}
|
||
|
||
/*
|
||
* Get the length of the name of a variable or function.
|
||
* Only the name is recognized, does not handle ".key" or "[idx]".
|
||
* "arg" is advanced to the first non-white character after the name.
|
||
* Return -1 if curly braces expansion failed.
|
||
* Return 0 if something else is wrong.
|
||
* If the name contains 'magic' {}'s, expand them and return the
|
||
* expanded name in an allocated string via 'alias' - caller must free.
|
||
*/
|
||
int get_name_len(const char **const arg,
|
||
char **alias,
|
||
int evaluate,
|
||
int verbose)
|
||
{
|
||
int len;
|
||
|
||
*alias = NULL; // default to no alias
|
||
|
||
if ((*arg)[0] == (char)K_SPECIAL && (*arg)[1] == (char)KS_EXTRA
|
||
&& (*arg)[2] == (char)KE_SNR) {
|
||
// Hard coded <SNR>, already translated.
|
||
*arg += 3;
|
||
return get_id_len(arg) + 3;
|
||
}
|
||
len = eval_fname_script(*arg);
|
||
if (len > 0) {
|
||
// literal "<SID>", "s:" or "<SNR>"
|
||
*arg += len;
|
||
}
|
||
|
||
// Find the end of the name; check for {} construction.
|
||
char_u *expr_start;
|
||
char_u *expr_end;
|
||
const char *p = (const char *)find_name_end((char_u *)(*arg),
|
||
(const char_u **)&expr_start,
|
||
(const char_u **)&expr_end,
|
||
len > 0 ? 0 : FNE_CHECK_START);
|
||
if (expr_start != NULL) {
|
||
if (!evaluate) {
|
||
len += (int)(p - *arg);
|
||
*arg = (const char *)skipwhite((const char_u *)p);
|
||
return len;
|
||
}
|
||
|
||
/*
|
||
* Include any <SID> etc in the expanded string:
|
||
* Thus the -len here.
|
||
*/
|
||
char_u *temp_string = make_expanded_name((char_u *)(*arg) - len, expr_start,
|
||
expr_end, (char_u *)p);
|
||
if (temp_string == NULL) {
|
||
return -1;
|
||
}
|
||
*alias = (char *)temp_string;
|
||
*arg = (const char *)skipwhite((const char_u *)p);
|
||
return (int)STRLEN(temp_string);
|
||
}
|
||
|
||
len += get_id_len(arg);
|
||
// Only give an error when there is something, otherwise it will be
|
||
// reported at a higher level.
|
||
if (len == 0 && verbose && **arg != NUL) {
|
||
EMSG2(_(e_invexpr2), *arg);
|
||
}
|
||
|
||
return len;
|
||
}
|
||
|
||
// Find the end of a variable or function name, taking care of magic braces.
|
||
// If "expr_start" is not NULL then "expr_start" and "expr_end" are set to the
|
||
// start and end of the first magic braces item.
|
||
// "flags" can have FNE_INCL_BR and FNE_CHECK_START.
|
||
// Return a pointer to just after the name. Equal to "arg" if there is no
|
||
// valid name.
|
||
const char_u *find_name_end(const char_u *arg, const char_u **expr_start,
|
||
const char_u **expr_end, int flags)
|
||
{
|
||
int mb_nest = 0;
|
||
int br_nest = 0;
|
||
int len;
|
||
|
||
if (expr_start != NULL) {
|
||
*expr_start = NULL;
|
||
*expr_end = NULL;
|
||
}
|
||
|
||
// Quick check for valid starting character.
|
||
if ((flags & FNE_CHECK_START) && !eval_isnamec1(*arg) && *arg != '{') {
|
||
return arg;
|
||
}
|
||
|
||
const char_u *p;
|
||
for (p = arg; *p != NUL
|
||
&& (eval_isnamec(*p)
|
||
|| *p == '{'
|
||
|| ((flags & FNE_INCL_BR) && (*p == '[' || *p == '.'))
|
||
|| mb_nest != 0
|
||
|| br_nest != 0); MB_PTR_ADV(p)) {
|
||
if (*p == '\'') {
|
||
// skip over 'string' to avoid counting [ and ] inside it.
|
||
for (p = p + 1; *p != NUL && *p != '\''; MB_PTR_ADV(p)) {
|
||
}
|
||
if (*p == NUL) {
|
||
break;
|
||
}
|
||
} else if (*p == '"') {
|
||
// skip over "str\"ing" to avoid counting [ and ] inside it.
|
||
for (p = p + 1; *p != NUL && *p != '"'; MB_PTR_ADV(p)) {
|
||
if (*p == '\\' && p[1] != NUL) {
|
||
++p;
|
||
}
|
||
}
|
||
if (*p == NUL) {
|
||
break;
|
||
}
|
||
} else if (br_nest == 0 && mb_nest == 0 && *p == ':') {
|
||
// "s:" is start of "s:var", but "n:" is not and can be used in
|
||
// slice "[n:]". Also "xx:" is not a namespace. But {ns}: is. */
|
||
len = (int)(p - arg);
|
||
if ((len > 1 && p[-1] != '}')
|
||
|| (len == 1 && vim_strchr(namespace_char, *arg) == NULL)) {
|
||
break;
|
||
}
|
||
}
|
||
|
||
if (mb_nest == 0) {
|
||
if (*p == '[') {
|
||
++br_nest;
|
||
} else if (*p == ']') {
|
||
--br_nest;
|
||
}
|
||
}
|
||
|
||
if (br_nest == 0) {
|
||
if (*p == '{') {
|
||
mb_nest++;
|
||
if (expr_start != NULL && *expr_start == NULL) {
|
||
*expr_start = p;
|
||
}
|
||
} else if (*p == '}') {
|
||
mb_nest--;
|
||
if (expr_start != NULL && mb_nest == 0 && *expr_end == NULL) {
|
||
*expr_end = p;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
return p;
|
||
}
|
||
|
||
/*
|
||
* Expands out the 'magic' {}'s in a variable/function name.
|
||
* Note that this can call itself recursively, to deal with
|
||
* constructs like foo{bar}{baz}{bam}
|
||
* The four pointer arguments point to "foo{expre}ss{ion}bar"
|
||
* "in_start" ^
|
||
* "expr_start" ^
|
||
* "expr_end" ^
|
||
* "in_end" ^
|
||
*
|
||
* Returns a new allocated string, which the caller must free.
|
||
* Returns NULL for failure.
|
||
*/
|
||
static char_u *make_expanded_name(const char_u *in_start, char_u *expr_start,
|
||
char_u *expr_end, char_u *in_end)
|
||
{
|
||
char_u c1;
|
||
char_u *retval = NULL;
|
||
char_u *temp_result;
|
||
char_u *nextcmd = NULL;
|
||
|
||
if (expr_end == NULL || in_end == NULL)
|
||
return NULL;
|
||
*expr_start = NUL;
|
||
*expr_end = NUL;
|
||
c1 = *in_end;
|
||
*in_end = NUL;
|
||
|
||
temp_result = eval_to_string(expr_start + 1, &nextcmd, FALSE);
|
||
if (temp_result != NULL && nextcmd == NULL) {
|
||
retval = xmalloc(STRLEN(temp_result) + (expr_start - in_start)
|
||
+ (in_end - expr_end) + 1);
|
||
STRCPY(retval, in_start);
|
||
STRCAT(retval, temp_result);
|
||
STRCAT(retval, expr_end + 1);
|
||
}
|
||
xfree(temp_result);
|
||
|
||
*in_end = c1; // put char back for error messages
|
||
*expr_start = '{';
|
||
*expr_end = '}';
|
||
|
||
if (retval != NULL) {
|
||
temp_result = (char_u *)find_name_end(retval,
|
||
(const char_u **)&expr_start,
|
||
(const char_u **)&expr_end, 0);
|
||
if (expr_start != NULL) {
|
||
// Further expansion!
|
||
temp_result = make_expanded_name(retval, expr_start,
|
||
expr_end, temp_result);
|
||
xfree(retval);
|
||
retval = temp_result;
|
||
}
|
||
}
|
||
|
||
return retval;
|
||
}
|
||
|
||
/*
|
||
* Return TRUE if character "c" can be used in a variable or function name.
|
||
* Does not include '{' or '}' for magic braces.
|
||
*/
|
||
int eval_isnamec(int c)
|
||
{
|
||
return ASCII_ISALNUM(c) || c == '_' || c == ':' || c == AUTOLOAD_CHAR;
|
||
}
|
||
|
||
/*
|
||
* Return TRUE if character "c" can be used as the first character in a
|
||
* variable or function name (excluding '{' and '}').
|
||
*/
|
||
int eval_isnamec1(int c)
|
||
{
|
||
return ASCII_ISALPHA(c) || c == '_';
|
||
}
|
||
|
||
/*
|
||
* Get number v: variable value.
|
||
*/
|
||
varnumber_T get_vim_var_nr(int idx) FUNC_ATTR_PURE
|
||
{
|
||
return vimvars[idx].vv_nr;
|
||
}
|
||
|
||
// Get string v: variable value. Uses a static buffer, can only be used once.
|
||
// If the String variable has never been set, return an empty string.
|
||
// Never returns NULL;
|
||
char_u *get_vim_var_str(int idx) FUNC_ATTR_PURE FUNC_ATTR_NONNULL_RET
|
||
{
|
||
return (char_u *)tv_get_string(&vimvars[idx].vv_tv);
|
||
}
|
||
|
||
/*
|
||
* Get List v: variable value. Caller must take care of reference count when
|
||
* needed.
|
||
*/
|
||
list_T *get_vim_var_list(int idx) FUNC_ATTR_PURE
|
||
{
|
||
return vimvars[idx].vv_list;
|
||
}
|
||
|
||
/// Get Dictionary v: variable value. Caller must take care of reference count
|
||
/// when needed.
|
||
dict_T *get_vim_var_dict(int idx) FUNC_ATTR_PURE
|
||
{
|
||
return vimvars[idx].vv_dict;
|
||
}
|
||
|
||
/*
|
||
* Set v:char to character "c".
|
||
*/
|
||
void set_vim_var_char(int c)
|
||
{
|
||
char buf[MB_MAXBYTES + 1];
|
||
|
||
buf[utf_char2bytes(c, (char_u *)buf)] = NUL;
|
||
set_vim_var_string(VV_CHAR, buf, -1);
|
||
}
|
||
|
||
/*
|
||
* Set v:count to "count" and v:count1 to "count1".
|
||
* When "set_prevcount" is TRUE first set v:prevcount from v:count.
|
||
*/
|
||
void set_vcount(long count, long count1, int set_prevcount)
|
||
{
|
||
if (set_prevcount)
|
||
vimvars[VV_PREVCOUNT].vv_nr = vimvars[VV_COUNT].vv_nr;
|
||
vimvars[VV_COUNT].vv_nr = count;
|
||
vimvars[VV_COUNT1].vv_nr = count1;
|
||
}
|
||
|
||
/// Set number v: variable to the given value
|
||
///
|
||
/// @param[in] idx Index of variable to set.
|
||
/// @param[in] val Value to set to.
|
||
void set_vim_var_nr(const VimVarIndex idx, const varnumber_T val)
|
||
{
|
||
tv_clear(&vimvars[idx].vv_tv);
|
||
vimvars[idx].vv_type = VAR_NUMBER;
|
||
vimvars[idx].vv_nr = val;
|
||
}
|
||
|
||
/// Set boolean v: {true, false} to the given value
|
||
///
|
||
/// @param[in] idx Index of variable to set.
|
||
/// @param[in] val Value to set to.
|
||
void set_vim_var_bool(const VimVarIndex idx, const BoolVarValue val)
|
||
{
|
||
tv_clear(&vimvars[idx].vv_tv);
|
||
vimvars[idx].vv_type = VAR_BOOL;
|
||
vimvars[idx].vv_bool = val;
|
||
}
|
||
|
||
/// Set special v: variable to the given value
|
||
///
|
||
/// @param[in] idx Index of variable to set.
|
||
/// @param[in] val Value to set to.
|
||
void set_vim_var_special(const VimVarIndex idx, const SpecialVarValue val)
|
||
{
|
||
tv_clear(&vimvars[idx].vv_tv);
|
||
vimvars[idx].vv_type = VAR_SPECIAL;
|
||
vimvars[idx].vv_special = val;
|
||
}
|
||
|
||
/// Set string v: variable to the given string
|
||
///
|
||
/// @param[in] idx Index of variable to set.
|
||
/// @param[in] val Value to set to. Will be copied.
|
||
/// @param[in] len Legth of that value or -1 in which case strlen() will be
|
||
/// used.
|
||
void set_vim_var_string(const VimVarIndex idx, const char *const val,
|
||
const ptrdiff_t len)
|
||
{
|
||
tv_clear(&vimvars[idx].vv_di.di_tv);
|
||
vimvars[idx].vv_type = VAR_STRING;
|
||
if (val == NULL) {
|
||
vimvars[idx].vv_str = NULL;
|
||
} else if (len == -1) {
|
||
vimvars[idx].vv_str = (char_u *) xstrdup(val);
|
||
} else {
|
||
vimvars[idx].vv_str = (char_u *) xstrndup(val, (size_t) len);
|
||
}
|
||
}
|
||
|
||
/// Set list v: variable to the given list
|
||
///
|
||
/// @param[in] idx Index of variable to set.
|
||
/// @param[in,out] val Value to set to. Reference count will be incremented.
|
||
void set_vim_var_list(const VimVarIndex idx, list_T *const val)
|
||
{
|
||
tv_clear(&vimvars[idx].vv_di.di_tv);
|
||
vimvars[idx].vv_type = VAR_LIST;
|
||
vimvars[idx].vv_list = val;
|
||
if (val != NULL) {
|
||
tv_list_ref(val);
|
||
}
|
||
}
|
||
|
||
/// Set Dictionary v: variable to the given dictionary
|
||
///
|
||
/// @param[in] idx Index of variable to set.
|
||
/// @param[in,out] val Value to set to. Reference count will be incremented.
|
||
/// Also keys of the dictionary will be made read-only.
|
||
void set_vim_var_dict(const VimVarIndex idx, dict_T *const val)
|
||
{
|
||
tv_clear(&vimvars[idx].vv_di.di_tv);
|
||
vimvars[idx].vv_type = VAR_DICT;
|
||
vimvars[idx].vv_dict = val;
|
||
|
||
if (val != NULL) {
|
||
val->dv_refcount++;
|
||
// Set readonly
|
||
tv_dict_set_keys_readonly(val);
|
||
}
|
||
}
|
||
|
||
/// Set the v:argv list.
|
||
void set_argv_var(char **argv, int argc)
|
||
{
|
||
list_T *l = tv_list_alloc(argc);
|
||
int i;
|
||
|
||
tv_list_set_lock(l, VAR_FIXED);
|
||
for (i = 0; i < argc; i++) {
|
||
tv_list_append_string(l, (const char *const)argv[i], -1);
|
||
TV_LIST_ITEM_TV(tv_list_last(l))->v_lock = VAR_FIXED;
|
||
}
|
||
set_vim_var_list(VV_ARGV, l);
|
||
}
|
||
|
||
/*
|
||
* Set v:register if needed.
|
||
*/
|
||
void set_reg_var(int c)
|
||
{
|
||
char regname;
|
||
|
||
if (c == 0 || c == ' ') {
|
||
regname = '"';
|
||
} else {
|
||
regname = c;
|
||
}
|
||
// Avoid free/alloc when the value is already right.
|
||
if (vimvars[VV_REG].vv_str == NULL || vimvars[VV_REG].vv_str[0] != c) {
|
||
set_vim_var_string(VV_REG, ®name, 1);
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Get or set v:exception. If "oldval" == NULL, return the current value.
|
||
* Otherwise, restore the value to "oldval" and return NULL.
|
||
* Must always be called in pairs to save and restore v:exception! Does not
|
||
* take care of memory allocations.
|
||
*/
|
||
char_u *v_exception(char_u *oldval)
|
||
{
|
||
if (oldval == NULL)
|
||
return vimvars[VV_EXCEPTION].vv_str;
|
||
|
||
vimvars[VV_EXCEPTION].vv_str = oldval;
|
||
return NULL;
|
||
}
|
||
|
||
/*
|
||
* Get or set v:throwpoint. If "oldval" == NULL, return the current value.
|
||
* Otherwise, restore the value to "oldval" and return NULL.
|
||
* Must always be called in pairs to save and restore v:throwpoint! Does not
|
||
* take care of memory allocations.
|
||
*/
|
||
char_u *v_throwpoint(char_u *oldval)
|
||
{
|
||
if (oldval == NULL)
|
||
return vimvars[VV_THROWPOINT].vv_str;
|
||
|
||
vimvars[VV_THROWPOINT].vv_str = oldval;
|
||
return NULL;
|
||
}
|
||
|
||
/*
|
||
* Set v:cmdarg.
|
||
* If "eap" != NULL, use "eap" to generate the value and return the old value.
|
||
* If "oldarg" != NULL, restore the value to "oldarg" and return NULL.
|
||
* Must always be called in pairs!
|
||
*/
|
||
char_u *set_cmdarg(exarg_T *eap, char_u *oldarg)
|
||
{
|
||
char_u *oldval = vimvars[VV_CMDARG].vv_str;
|
||
if (eap == NULL) {
|
||
xfree(oldval);
|
||
vimvars[VV_CMDARG].vv_str = oldarg;
|
||
return NULL;
|
||
}
|
||
|
||
size_t len = 0;
|
||
if (eap->force_bin == FORCE_BIN)
|
||
len = 6;
|
||
else if (eap->force_bin == FORCE_NOBIN)
|
||
len = 8;
|
||
|
||
if (eap->read_edit)
|
||
len += 7;
|
||
|
||
if (eap->force_ff != 0) {
|
||
len += 10; // " ++ff=unix"
|
||
}
|
||
if (eap->force_enc != 0) {
|
||
len += STRLEN(eap->cmd + eap->force_enc) + 7;
|
||
}
|
||
if (eap->bad_char != 0) {
|
||
len += 7 + 4; // " ++bad=" + "keep" or "drop"
|
||
}
|
||
|
||
const size_t newval_len = len + 1;
|
||
char_u *newval = xmalloc(newval_len);
|
||
|
||
if (eap->force_bin == FORCE_BIN)
|
||
sprintf((char *)newval, " ++bin");
|
||
else if (eap->force_bin == FORCE_NOBIN)
|
||
sprintf((char *)newval, " ++nobin");
|
||
else
|
||
*newval = NUL;
|
||
|
||
if (eap->read_edit)
|
||
STRCAT(newval, " ++edit");
|
||
|
||
if (eap->force_ff != 0) {
|
||
snprintf((char *)newval + STRLEN(newval), newval_len, " ++ff=%s",
|
||
eap->force_ff == 'u' ? "unix" :
|
||
eap->force_ff == 'd' ? "dos" : "mac");
|
||
}
|
||
if (eap->force_enc != 0) {
|
||
snprintf((char *)newval + STRLEN(newval), newval_len, " ++enc=%s",
|
||
eap->cmd + eap->force_enc);
|
||
}
|
||
if (eap->bad_char == BAD_KEEP) {
|
||
STRCPY(newval + STRLEN(newval), " ++bad=keep");
|
||
} else if (eap->bad_char == BAD_DROP) {
|
||
STRCPY(newval + STRLEN(newval), " ++bad=drop");
|
||
} else if (eap->bad_char != 0) {
|
||
snprintf((char *)newval + STRLEN(newval), newval_len, " ++bad=%c",
|
||
eap->bad_char);
|
||
}
|
||
vimvars[VV_CMDARG].vv_str = newval;
|
||
return oldval;
|
||
}
|
||
|
||
/*
|
||
* Get the value of internal variable "name".
|
||
* Return OK or FAIL.
|
||
*/
|
||
int get_var_tv(
|
||
const char *name,
|
||
int len, // length of "name"
|
||
typval_T *rettv, // NULL when only checking existence
|
||
dictitem_T **dip, // non-NULL when typval's dict item is needed
|
||
int verbose, // may give error message
|
||
int no_autoload // do not use script autoloading
|
||
)
|
||
{
|
||
int ret = OK;
|
||
typval_T *tv = NULL;
|
||
dictitem_T *v;
|
||
|
||
v = find_var(name, (size_t)len, NULL, no_autoload);
|
||
if (v != NULL) {
|
||
tv = &v->di_tv;
|
||
if (dip != NULL) {
|
||
*dip = v;
|
||
}
|
||
}
|
||
|
||
if (tv == NULL) {
|
||
if (rettv != NULL && verbose) {
|
||
emsgf(_("E121: Undefined variable: %.*s"), len, name);
|
||
}
|
||
ret = FAIL;
|
||
} else if (rettv != NULL) {
|
||
tv_copy(tv, rettv);
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
/// Check if variable "name[len]" is a local variable or an argument.
|
||
/// If so, "*eval_lavars_used" is set to true.
|
||
static void check_vars(const char *name, size_t len)
|
||
{
|
||
if (eval_lavars_used == NULL) {
|
||
return;
|
||
}
|
||
|
||
const char *varname;
|
||
hashtab_T *ht = find_var_ht(name, len, &varname);
|
||
|
||
if (ht == get_funccal_local_ht() || ht == get_funccal_args_ht()) {
|
||
if (find_var(name, len, NULL, true) != NULL) {
|
||
*eval_lavars_used = true;
|
||
}
|
||
}
|
||
}
|
||
|
||
/// check if special v:lua value for calling lua functions
|
||
bool is_luafunc(partial_T *partial)
|
||
{
|
||
return partial == vvlua_partial;
|
||
}
|
||
|
||
/// check if special v:lua value for calling lua functions
|
||
static bool tv_is_luafunc(typval_T *tv)
|
||
{
|
||
return tv->v_type == VAR_PARTIAL && is_luafunc(tv->vval.v_partial);
|
||
}
|
||
|
||
/// check the function name after "v:lua."
|
||
int check_luafunc_name(const char *str, bool paren)
|
||
{
|
||
const char *p = str;
|
||
while (ASCII_ISALNUM(*p) || *p == '_' || *p == '.') {
|
||
p++;
|
||
}
|
||
if (*p != (paren ? '(' : NUL)) {
|
||
return 0;
|
||
} else {
|
||
return (int)(p-str);
|
||
}
|
||
}
|
||
|
||
/// Handle expr[expr], expr[expr:expr] subscript and .name lookup.
|
||
/// Also handle function call with Funcref variable: func(expr)
|
||
/// Can all be combined: dict.func(expr)[idx]['func'](expr)
|
||
int
|
||
handle_subscript(
|
||
const char **const arg,
|
||
typval_T *rettv,
|
||
int evaluate, // do more than finding the end
|
||
int verbose // give error messages
|
||
)
|
||
{
|
||
int ret = OK;
|
||
dict_T *selfdict = NULL;
|
||
const char_u *s;
|
||
int len;
|
||
typval_T functv;
|
||
int slen = 0;
|
||
bool lua = false;
|
||
|
||
if (tv_is_luafunc(rettv)) {
|
||
if (**arg != '.') {
|
||
tv_clear(rettv);
|
||
ret = FAIL;
|
||
} else {
|
||
(*arg)++;
|
||
|
||
lua = true;
|
||
s = (char_u *)(*arg);
|
||
slen = check_luafunc_name(*arg, true);
|
||
if (slen == 0) {
|
||
tv_clear(rettv);
|
||
ret = FAIL;
|
||
}
|
||
(*arg) += slen;
|
||
}
|
||
}
|
||
|
||
|
||
while (ret == OK
|
||
&& (**arg == '['
|
||
|| (**arg == '.' && rettv->v_type == VAR_DICT)
|
||
|| (**arg == '(' && (!evaluate || tv_is_func(*rettv))))
|
||
&& !ascii_iswhite(*(*arg - 1))) {
|
||
if (**arg == '(') {
|
||
partial_T *pt = NULL;
|
||
// need to copy the funcref so that we can clear rettv
|
||
if (evaluate) {
|
||
functv = *rettv;
|
||
rettv->v_type = VAR_UNKNOWN;
|
||
|
||
// Invoke the function. Recursive!
|
||
if (functv.v_type == VAR_PARTIAL) {
|
||
pt = functv.vval.v_partial;
|
||
if (!lua) {
|
||
s = partial_name(pt);
|
||
}
|
||
} else {
|
||
s = functv.vval.v_string;
|
||
}
|
||
} else {
|
||
s = (char_u *)"";
|
||
}
|
||
ret = get_func_tv(s, lua ? slen : (int)STRLEN(s), rettv, (char_u **)arg,
|
||
curwin->w_cursor.lnum, curwin->w_cursor.lnum,
|
||
&len, evaluate, pt, selfdict);
|
||
|
||
// Clear the funcref afterwards, so that deleting it while
|
||
// evaluating the arguments is possible (see test55).
|
||
if (evaluate) {
|
||
tv_clear(&functv);
|
||
}
|
||
|
||
/* Stop the expression evaluation when immediately aborting on
|
||
* error, or when an interrupt occurred or an exception was thrown
|
||
* but not caught. */
|
||
if (aborting()) {
|
||
if (ret == OK) {
|
||
tv_clear(rettv);
|
||
}
|
||
ret = FAIL;
|
||
}
|
||
tv_dict_unref(selfdict);
|
||
selfdict = NULL;
|
||
} else { // **arg == '[' || **arg == '.'
|
||
tv_dict_unref(selfdict);
|
||
if (rettv->v_type == VAR_DICT) {
|
||
selfdict = rettv->vval.v_dict;
|
||
if (selfdict != NULL)
|
||
++selfdict->dv_refcount;
|
||
} else
|
||
selfdict = NULL;
|
||
if (eval_index((char_u **)arg, rettv, evaluate, verbose) == FAIL) {
|
||
tv_clear(rettv);
|
||
ret = FAIL;
|
||
}
|
||
}
|
||
}
|
||
|
||
// Turn "dict.Func" into a partial for "Func" bound to "dict".
|
||
if (selfdict != NULL && tv_is_func(*rettv)) {
|
||
set_selfdict(rettv, selfdict);
|
||
}
|
||
|
||
tv_dict_unref(selfdict);
|
||
return ret;
|
||
}
|
||
|
||
void set_selfdict(typval_T *const rettv, dict_T *const selfdict)
|
||
{
|
||
// Don't do this when "dict.Func" is already a partial that was bound
|
||
// explicitly (pt_auto is false).
|
||
if (rettv->v_type == VAR_PARTIAL && !rettv->vval.v_partial->pt_auto
|
||
&& rettv->vval.v_partial->pt_dict != NULL) {
|
||
return;
|
||
}
|
||
make_partial(selfdict, rettv);
|
||
}
|
||
|
||
// Turn a typeval into a string. Similar to tv_get_string_buf() but uses
|
||
// string() on Dict, List, etc.
|
||
static const char *tv_stringify(typval_T *varp, char *buf)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
if (varp->v_type == VAR_LIST
|
||
|| varp->v_type == VAR_DICT
|
||
|| varp->v_type == VAR_FUNC
|
||
|| varp->v_type == VAR_PARTIAL
|
||
|| varp->v_type == VAR_FLOAT) {
|
||
typval_T tmp;
|
||
|
||
f_string(varp, &tmp, NULL);
|
||
const char *const res = tv_get_string_buf(&tmp, buf);
|
||
tv_clear(varp);
|
||
*varp = tmp;
|
||
return res;
|
||
}
|
||
return tv_get_string_buf(varp, buf);
|
||
}
|
||
|
||
// Find variable "name" in the list of variables.
|
||
// Return a pointer to it if found, NULL if not found.
|
||
// Careful: "a:0" variables don't have a name.
|
||
// When "htp" is not NULL we are writing to the variable, set "htp" to the
|
||
// hashtab_T used.
|
||
dictitem_T *find_var(const char *const name, const size_t name_len,
|
||
hashtab_T **htp, int no_autoload)
|
||
{
|
||
const char *varname;
|
||
hashtab_T *const ht = find_var_ht(name, name_len, &varname);
|
||
if (htp != NULL) {
|
||
*htp = ht;
|
||
}
|
||
if (ht == NULL) {
|
||
return NULL;
|
||
}
|
||
dictitem_T *const ret = find_var_in_ht(ht, *name,
|
||
varname,
|
||
name_len - (size_t)(varname - name),
|
||
no_autoload || htp != NULL);
|
||
if (ret != NULL) {
|
||
return ret;
|
||
}
|
||
|
||
// Search in parent scope for lambda
|
||
return find_var_in_scoped_ht(name, name_len, no_autoload || htp != NULL);
|
||
}
|
||
|
||
/// Find variable in hashtab.
|
||
/// When "varname" is empty returns curwin/curtab/etc vars dictionary.
|
||
///
|
||
/// @param[in] ht Hashtab to find variable in.
|
||
/// @param[in] htname Hashtab name (first character).
|
||
/// @param[in] varname Variable name.
|
||
/// @param[in] varname_len Variable name length.
|
||
/// @param[in] no_autoload If true then autoload scripts will not be sourced
|
||
/// if autoload variable was not found.
|
||
///
|
||
/// @return pointer to the dictionary item with the found variable or NULL if it
|
||
/// was not found.
|
||
dictitem_T *find_var_in_ht(hashtab_T *const ht,
|
||
int htname,
|
||
const char *const varname,
|
||
const size_t varname_len,
|
||
int no_autoload)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
hashitem_T *hi;
|
||
|
||
if (varname_len == 0) {
|
||
// Must be something like "s:", otherwise "ht" would be NULL.
|
||
switch (htname) {
|
||
case 's': return (dictitem_T *)&SCRIPT_SV(current_sctx.sc_sid)->sv_var;
|
||
case 'g': return (dictitem_T *)&globvars_var;
|
||
case 'v': return (dictitem_T *)&vimvars_var;
|
||
case 'b': return (dictitem_T *)&curbuf->b_bufvar;
|
||
case 'w': return (dictitem_T *)&curwin->w_winvar;
|
||
case 't': return (dictitem_T *)&curtab->tp_winvar;
|
||
case 'l': return get_funccal_local_var();
|
||
case 'a': return get_funccal_args_var();
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
hi = hash_find_len(ht, varname, varname_len);
|
||
if (HASHITEM_EMPTY(hi)) {
|
||
// For global variables we may try auto-loading the script. If it
|
||
// worked find the variable again. Don't auto-load a script if it was
|
||
// loaded already, otherwise it would be loaded every time when
|
||
// checking if a function name is a Funcref variable.
|
||
if (ht == &globvarht && !no_autoload) {
|
||
// Note: script_autoload() may make "hi" invalid. It must either
|
||
// be obtained again or not used.
|
||
if (!script_autoload(varname, varname_len, false) || aborting()) {
|
||
return NULL;
|
||
}
|
||
hi = hash_find_len(ht, varname, varname_len);
|
||
}
|
||
if (HASHITEM_EMPTY(hi)) {
|
||
return NULL;
|
||
}
|
||
}
|
||
return TV_DICT_HI2DI(hi);
|
||
}
|
||
|
||
/// Finds the dict (g:, l:, s:, …) and hashtable used for a variable.
|
||
///
|
||
/// @param[in] name Variable name, possibly with scope prefix.
|
||
/// @param[in] name_len Variable name length.
|
||
/// @param[out] varname Will be set to the start of the name without scope
|
||
/// prefix.
|
||
/// @param[out] d Scope dictionary.
|
||
///
|
||
/// @return Scope hashtab, NULL if name is not valid.
|
||
static hashtab_T *find_var_ht_dict(const char *name, const size_t name_len,
|
||
const char **varname, dict_T **d)
|
||
{
|
||
hashitem_T *hi;
|
||
funccall_T *funccal = get_funccal();
|
||
*d = NULL;
|
||
|
||
if (name_len == 0) {
|
||
return NULL;
|
||
}
|
||
if (name_len == 1 || name[1] != ':') {
|
||
// name has implicit scope
|
||
if (name[0] == ':' || name[0] == AUTOLOAD_CHAR) {
|
||
// The name must not start with a colon or #.
|
||
return NULL;
|
||
}
|
||
*varname = name;
|
||
|
||
// "version" is "v:version" in all scopes
|
||
hi = hash_find_len(&compat_hashtab, name, name_len);
|
||
if (!HASHITEM_EMPTY(hi)) {
|
||
return &compat_hashtab;
|
||
}
|
||
|
||
if (funccal == NULL) { // global variable
|
||
*d = &globvardict;
|
||
} else { // l: variable
|
||
*d = &funccal->l_vars;
|
||
}
|
||
goto end;
|
||
}
|
||
|
||
*varname = name + 2;
|
||
if (*name == 'g') { // global variable
|
||
*d = &globvardict;
|
||
} else if (name_len > 2
|
||
&& (memchr(name + 2, ':', name_len - 2) != NULL
|
||
|| memchr(name + 2, AUTOLOAD_CHAR, name_len - 2) != NULL)) {
|
||
// There must be no ':' or '#' in the rest of the name if g: was not used
|
||
return NULL;
|
||
}
|
||
|
||
if (*name == 'b') { // buffer variable
|
||
*d = curbuf->b_vars;
|
||
} else if (*name == 'w') { // window variable
|
||
*d = curwin->w_vars;
|
||
} else if (*name == 't') { // tab page variable
|
||
*d = curtab->tp_vars;
|
||
} else if (*name == 'v') { // v: variable
|
||
*d = &vimvardict;
|
||
} else if (*name == 'a' && funccal != NULL) { // function argument
|
||
*d = &funccal->l_avars;
|
||
} else if (*name == 'l' && funccal != NULL) { // local variable
|
||
*d = &funccal->l_vars;
|
||
} else if (*name == 's' // script variable
|
||
&& current_sctx.sc_sid > 0
|
||
&& current_sctx.sc_sid <= ga_scripts.ga_len) {
|
||
*d = &SCRIPT_SV(current_sctx.sc_sid)->sv_dict;
|
||
}
|
||
|
||
end:
|
||
return *d ? &(*d)->dv_hashtab : NULL;
|
||
}
|
||
|
||
/// Find the hashtable used for a variable
|
||
///
|
||
/// @param[in] name Variable name, possibly with scope prefix.
|
||
/// @param[in] name_len Variable name length.
|
||
/// @param[out] varname Will be set to the start of the name without scope
|
||
/// prefix.
|
||
///
|
||
/// @return Scope hashtab, NULL if name is not valid.
|
||
hashtab_T *find_var_ht(const char *name, const size_t name_len,
|
||
const char **varname)
|
||
{
|
||
dict_T *d;
|
||
return find_var_ht_dict(name, name_len, varname, &d);
|
||
}
|
||
|
||
/*
|
||
* Get the string value of a (global/local) variable.
|
||
* Note: see tv_get_string() for how long the pointer remains valid.
|
||
* Returns NULL when it doesn't exist.
|
||
*/
|
||
char_u *get_var_value(const char *const name)
|
||
{
|
||
dictitem_T *v;
|
||
|
||
v = find_var(name, strlen(name), NULL, false);
|
||
if (v == NULL) {
|
||
return NULL;
|
||
}
|
||
return (char_u *)tv_get_string(&v->di_tv);
|
||
}
|
||
|
||
/*
|
||
* Allocate a new hashtab for a sourced script. It will be used while
|
||
* sourcing this script and when executing functions defined in the script.
|
||
*/
|
||
void new_script_vars(scid_T id)
|
||
{
|
||
hashtab_T *ht;
|
||
scriptvar_T *sv;
|
||
|
||
ga_grow(&ga_scripts, (int)(id - ga_scripts.ga_len));
|
||
{
|
||
/* Re-allocating ga_data means that an ht_array pointing to
|
||
* ht_smallarray becomes invalid. We can recognize this: ht_mask is
|
||
* at its init value. Also reset "v_dict", it's always the same. */
|
||
for (int i = 1; i <= ga_scripts.ga_len; ++i) {
|
||
ht = &SCRIPT_VARS(i);
|
||
if (ht->ht_mask == HT_INIT_SIZE - 1)
|
||
ht->ht_array = ht->ht_smallarray;
|
||
sv = SCRIPT_SV(i);
|
||
sv->sv_var.di_tv.vval.v_dict = &sv->sv_dict;
|
||
}
|
||
|
||
while (ga_scripts.ga_len < id) {
|
||
sv = SCRIPT_SV(ga_scripts.ga_len + 1) = xcalloc(1, sizeof(scriptvar_T));
|
||
init_var_dict(&sv->sv_dict, &sv->sv_var, VAR_SCOPE);
|
||
++ga_scripts.ga_len;
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Initialize dictionary "dict" as a scope and set variable "dict_var" to
|
||
* point to it.
|
||
*/
|
||
void init_var_dict(dict_T *dict, ScopeDictDictItem *dict_var, int scope)
|
||
{
|
||
hash_init(&dict->dv_hashtab);
|
||
dict->dv_lock = VAR_UNLOCKED;
|
||
dict->dv_scope = scope;
|
||
dict->dv_refcount = DO_NOT_FREE_CNT;
|
||
dict->dv_copyID = 0;
|
||
dict_var->di_tv.vval.v_dict = dict;
|
||
dict_var->di_tv.v_type = VAR_DICT;
|
||
dict_var->di_tv.v_lock = VAR_FIXED;
|
||
dict_var->di_flags = DI_FLAGS_RO | DI_FLAGS_FIX;
|
||
dict_var->di_key[0] = NUL;
|
||
QUEUE_INIT(&dict->watchers);
|
||
}
|
||
|
||
/*
|
||
* Unreference a dictionary initialized by init_var_dict().
|
||
*/
|
||
void unref_var_dict(dict_T *dict)
|
||
{
|
||
/* Now the dict needs to be freed if no one else is using it, go back to
|
||
* normal reference counting. */
|
||
dict->dv_refcount -= DO_NOT_FREE_CNT - 1;
|
||
tv_dict_unref(dict);
|
||
}
|
||
|
||
/*
|
||
* Clean up a list of internal variables.
|
||
* Frees all allocated variables and the value they contain.
|
||
* Clears hashtab "ht", does not free it.
|
||
*/
|
||
void vars_clear(hashtab_T *ht)
|
||
{
|
||
vars_clear_ext(ht, TRUE);
|
||
}
|
||
|
||
/*
|
||
* Like vars_clear(), but only free the value if "free_val" is TRUE.
|
||
*/
|
||
void vars_clear_ext(hashtab_T *ht, int free_val)
|
||
{
|
||
int todo;
|
||
hashitem_T *hi;
|
||
dictitem_T *v;
|
||
|
||
hash_lock(ht);
|
||
todo = (int)ht->ht_used;
|
||
for (hi = ht->ht_array; todo > 0; ++hi) {
|
||
if (!HASHITEM_EMPTY(hi)) {
|
||
--todo;
|
||
|
||
// Free the variable. Don't remove it from the hashtab,
|
||
// ht_array might change then. hash_clear() takes care of it
|
||
// later.
|
||
v = TV_DICT_HI2DI(hi);
|
||
if (free_val) {
|
||
tv_clear(&v->di_tv);
|
||
}
|
||
if (v->di_flags & DI_FLAGS_ALLOC) {
|
||
xfree(v);
|
||
}
|
||
}
|
||
}
|
||
hash_clear(ht);
|
||
ht->ht_used = 0;
|
||
}
|
||
|
||
/*
|
||
* Delete a variable from hashtab "ht" at item "hi".
|
||
* Clear the variable value and free the dictitem.
|
||
*/
|
||
static void delete_var(hashtab_T *ht, hashitem_T *hi)
|
||
{
|
||
dictitem_T *di = TV_DICT_HI2DI(hi);
|
||
|
||
hash_remove(ht, hi);
|
||
tv_clear(&di->di_tv);
|
||
xfree(di);
|
||
}
|
||
|
||
/*
|
||
* List the value of one internal variable.
|
||
*/
|
||
static void list_one_var(dictitem_T *v, const char *prefix, int *first)
|
||
{
|
||
char *const s = encode_tv2echo(&v->di_tv, NULL);
|
||
list_one_var_a(prefix, (const char *)v->di_key, STRLEN(v->di_key),
|
||
v->di_tv.v_type, (s == NULL ? "" : s), first);
|
||
xfree(s);
|
||
}
|
||
|
||
/// @param[in] name_len Length of the name. May be -1, in this case strlen()
|
||
/// will be used.
|
||
/// @param[in,out] first When true clear rest of screen and set to false.
|
||
static void list_one_var_a(const char *prefix, const char *name,
|
||
const ptrdiff_t name_len, const int type,
|
||
const char *string, int *first)
|
||
{
|
||
// don't use msg() or msg_attr() to avoid overwriting "v:statusmsg"
|
||
msg_start();
|
||
msg_puts(prefix);
|
||
if (name != NULL) { // "a:" vars don't have a name stored
|
||
msg_puts_attr_len(name, name_len, 0);
|
||
}
|
||
msg_putchar(' ');
|
||
msg_advance(22);
|
||
if (type == VAR_NUMBER) {
|
||
msg_putchar('#');
|
||
} else if (type == VAR_FUNC || type == VAR_PARTIAL) {
|
||
msg_putchar('*');
|
||
} else if (type == VAR_LIST) {
|
||
msg_putchar('[');
|
||
if (*string == '[')
|
||
++string;
|
||
} else if (type == VAR_DICT) {
|
||
msg_putchar('{');
|
||
if (*string == '{')
|
||
++string;
|
||
} else
|
||
msg_putchar(' ');
|
||
|
||
msg_outtrans((char_u *)string);
|
||
|
||
if (type == VAR_FUNC || type == VAR_PARTIAL) {
|
||
msg_puts("()");
|
||
}
|
||
if (*first) {
|
||
msg_clr_eos();
|
||
*first = FALSE;
|
||
}
|
||
}
|
||
|
||
/// Set variable to the given value
|
||
///
|
||
/// If the variable already exists, the value is updated. Otherwise the variable
|
||
/// is created.
|
||
///
|
||
/// @param[in] name Variable name to set.
|
||
/// @param[in] name_len Length of the variable name.
|
||
/// @param tv Variable value.
|
||
/// @param[in] copy True if value in tv is to be copied.
|
||
void set_var(const char *name, const size_t name_len, typval_T *const tv,
|
||
const bool copy)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
set_var_const(name, name_len, tv, copy, false);
|
||
}
|
||
|
||
/// Set variable to the given value
|
||
///
|
||
/// If the variable already exists, the value is updated. Otherwise the variable
|
||
/// is created.
|
||
///
|
||
/// @param[in] name Variable name to set.
|
||
/// @param[in] name_len Length of the variable name.
|
||
/// @param tv Variable value.
|
||
/// @param[in] copy True if value in tv is to be copied.
|
||
/// @param[in] is_const True if value in tv is to be locked.
|
||
static void set_var_const(const char *name, const size_t name_len,
|
||
typval_T *const tv, const bool copy,
|
||
const bool is_const)
|
||
FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
dictitem_T *v;
|
||
hashtab_T *ht;
|
||
dict_T *dict;
|
||
|
||
const char *varname;
|
||
ht = find_var_ht_dict(name, name_len, &varname, &dict);
|
||
const bool watched = tv_dict_is_watched(dict);
|
||
|
||
if (ht == NULL || *varname == NUL) {
|
||
EMSG2(_(e_illvar), name);
|
||
return;
|
||
}
|
||
v = find_var_in_ht(ht, 0, varname, name_len - (size_t)(varname - name), true);
|
||
|
||
// Search in parent scope which is possible to reference from lambda
|
||
if (v == NULL) {
|
||
v = find_var_in_scoped_ht((const char *)name, name_len, true);
|
||
}
|
||
|
||
if (tv_is_func(*tv) && !var_check_func_name(name, v == NULL)) {
|
||
return;
|
||
}
|
||
|
||
typval_T oldtv = TV_INITIAL_VALUE;
|
||
if (v != NULL) {
|
||
if (is_const) {
|
||
EMSG(_(e_cannot_mod));
|
||
return;
|
||
}
|
||
|
||
// existing variable, need to clear the value
|
||
if (var_check_ro(v->di_flags, name, name_len)
|
||
|| tv_check_lock(v->di_tv.v_lock, name, name_len)) {
|
||
return;
|
||
}
|
||
|
||
// Handle setting internal v: variables separately where needed to
|
||
// prevent changing the type.
|
||
if (ht == &vimvarht) {
|
||
if (v->di_tv.v_type == VAR_STRING) {
|
||
XFREE_CLEAR(v->di_tv.vval.v_string);
|
||
if (copy || tv->v_type != VAR_STRING) {
|
||
const char *const val = tv_get_string(tv);
|
||
|
||
// Careful: when assigning to v:errmsg and tv_get_string()
|
||
// causes an error message the variable will alrady be set.
|
||
if (v->di_tv.vval.v_string == NULL) {
|
||
v->di_tv.vval.v_string = (char_u *)xstrdup(val);
|
||
}
|
||
} else {
|
||
// Take over the string to avoid an extra alloc/free.
|
||
v->di_tv.vval.v_string = tv->vval.v_string;
|
||
tv->vval.v_string = NULL;
|
||
}
|
||
return;
|
||
} else if (v->di_tv.v_type == VAR_NUMBER) {
|
||
v->di_tv.vval.v_number = tv_get_number(tv);
|
||
if (strcmp(varname, "searchforward") == 0) {
|
||
set_search_direction(v->di_tv.vval.v_number ? '/' : '?');
|
||
} else if (strcmp(varname, "hlsearch") == 0) {
|
||
no_hlsearch = !v->di_tv.vval.v_number;
|
||
redraw_all_later(SOME_VALID);
|
||
}
|
||
return;
|
||
} else if (v->di_tv.v_type != tv->v_type) {
|
||
EMSG2(_("E963: setting %s to value with wrong type"), name);
|
||
return;
|
||
}
|
||
}
|
||
|
||
if (watched) {
|
||
tv_copy(&v->di_tv, &oldtv);
|
||
}
|
||
tv_clear(&v->di_tv);
|
||
} else { // Add a new variable.
|
||
// Can't add "v:" or "a:" variable.
|
||
if (ht == &vimvarht || ht == get_funccal_args_ht()) {
|
||
emsgf(_(e_illvar), name);
|
||
return;
|
||
}
|
||
|
||
// Make sure the variable name is valid.
|
||
if (!valid_varname(varname)) {
|
||
return;
|
||
}
|
||
|
||
// Make sure dict is valid
|
||
assert(dict != NULL);
|
||
|
||
v = xmalloc(sizeof(dictitem_T) + strlen(varname));
|
||
STRCPY(v->di_key, varname);
|
||
if (tv_dict_add(dict, v) == FAIL) {
|
||
xfree(v);
|
||
return;
|
||
}
|
||
v->di_flags = DI_FLAGS_ALLOC;
|
||
if (is_const) {
|
||
v->di_flags |= DI_FLAGS_LOCK;
|
||
}
|
||
}
|
||
|
||
if (copy || tv->v_type == VAR_NUMBER || tv->v_type == VAR_FLOAT) {
|
||
tv_copy(tv, &v->di_tv);
|
||
} else {
|
||
v->di_tv = *tv;
|
||
v->di_tv.v_lock = 0;
|
||
tv_init(tv);
|
||
}
|
||
|
||
if (watched) {
|
||
if (oldtv.v_type == VAR_UNKNOWN) {
|
||
tv_dict_watcher_notify(dict, (char *)v->di_key, &v->di_tv, NULL);
|
||
} else {
|
||
tv_dict_watcher_notify(dict, (char *)v->di_key, &v->di_tv, &oldtv);
|
||
tv_clear(&oldtv);
|
||
}
|
||
}
|
||
|
||
if (is_const) {
|
||
v->di_tv.v_lock |= VAR_LOCKED;
|
||
}
|
||
}
|
||
|
||
/// Check whether variable is read-only (DI_FLAGS_RO, DI_FLAGS_RO_SBX)
|
||
///
|
||
/// Also gives an error message.
|
||
///
|
||
/// @param[in] flags di_flags attribute value.
|
||
/// @param[in] name Variable name, for use in error message.
|
||
/// @param[in] name_len Variable name length. Use #TV_TRANSLATE to translate
|
||
/// variable name and compute the length. Use #TV_CSTRING
|
||
/// to compute the length with strlen() without
|
||
/// translating.
|
||
///
|
||
/// Both #TV_… values are used for optimization purposes:
|
||
/// variable name with its length is needed only in case
|
||
/// of error, when no error occurs computing them is
|
||
/// a waste of CPU resources. This especially applies to
|
||
/// gettext.
|
||
///
|
||
/// @return True if variable is read-only: either always or in sandbox when
|
||
/// sandbox is enabled, false otherwise.
|
||
bool var_check_ro(const int flags, const char *name,
|
||
size_t name_len)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
const char *error_message = NULL;
|
||
if (flags & DI_FLAGS_RO) {
|
||
error_message = _(e_readonlyvar);
|
||
} else if ((flags & DI_FLAGS_RO_SBX) && sandbox) {
|
||
error_message = N_("E794: Cannot set variable in the sandbox: \"%.*s\"");
|
||
}
|
||
|
||
if (error_message == NULL) {
|
||
return false;
|
||
}
|
||
if (name_len == TV_TRANSLATE) {
|
||
name = _(name);
|
||
name_len = strlen(name);
|
||
} else if (name_len == TV_CSTRING) {
|
||
name_len = strlen(name);
|
||
}
|
||
|
||
emsgf(_(error_message), (int)name_len, name);
|
||
|
||
return true;
|
||
}
|
||
|
||
/// Check whether variable is fixed (DI_FLAGS_FIX)
|
||
///
|
||
/// Also gives an error message.
|
||
///
|
||
/// @param[in] flags di_flags attribute value.
|
||
/// @param[in] name Variable name, for use in error message.
|
||
/// @param[in] name_len Variable name length. Use #TV_TRANSLATE to translate
|
||
/// variable name and compute the length. Use #TV_CSTRING
|
||
/// to compute the length with strlen() without
|
||
/// translating.
|
||
///
|
||
/// Both #TV_… values are used for optimization purposes:
|
||
/// variable name with its length is needed only in case
|
||
/// of error, when no error occurs computing them is
|
||
/// a waste of CPU resources. This especially applies to
|
||
/// gettext.
|
||
///
|
||
/// @return True if variable is fixed, false otherwise.
|
||
bool var_check_fixed(const int flags, const char *name,
|
||
size_t name_len)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL
|
||
{
|
||
if (flags & DI_FLAGS_FIX) {
|
||
if (name_len == TV_TRANSLATE) {
|
||
name = _(name);
|
||
name_len = strlen(name);
|
||
} else if (name_len == TV_CSTRING) {
|
||
name_len = strlen(name);
|
||
}
|
||
EMSG3(_("E795: Cannot delete variable %.*s"), (int)name_len, name);
|
||
return true;
|
||
}
|
||
return false;
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/expressions
|
||
|
||
/// Check if name is a valid name to assign funcref to
|
||
///
|
||
/// @param[in] name Possible function/funcref name.
|
||
/// @param[in] new_var True if it is a name for a variable.
|
||
///
|
||
/// @return false in case of error, true in case of success. Also gives an
|
||
/// error message if appropriate.
|
||
bool var_check_func_name(const char *const name, const bool new_var)
|
||
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
// Allow for w: b: s: and t:.
|
||
if (!(vim_strchr((char_u *)"wbst", name[0]) != NULL && name[1] == ':')
|
||
&& !ASCII_ISUPPER((name[0] != NUL && name[1] == ':') ? name[2]
|
||
: name[0])) {
|
||
EMSG2(_("E704: Funcref variable name must start with a capital: %s"), name);
|
||
return false;
|
||
}
|
||
// Don't allow hiding a function. When "v" is not NULL we might be
|
||
// assigning another function to the same var, the type is checked
|
||
// below.
|
||
if (new_var && function_exists((const char *)name, false)) {
|
||
EMSG2(_("E705: Variable name conflicts with existing function: %s"),
|
||
name);
|
||
return false;
|
||
}
|
||
return true;
|
||
}
|
||
|
||
// TODO(ZyX-I): move to eval/expressions
|
||
|
||
/// Check if a variable name is valid
|
||
///
|
||
/// @param[in] varname Variable name to check.
|
||
///
|
||
/// @return false when variable name is not valid, true when it is. Also gives
|
||
/// an error message if appropriate.
|
||
bool valid_varname(const char *varname)
|
||
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
for (const char *p = varname; *p != NUL; p++) {
|
||
if (!eval_isnamec1((int)(uint8_t)(*p))
|
||
&& (p == varname || !ascii_isdigit(*p))
|
||
&& *p != AUTOLOAD_CHAR) {
|
||
emsgf(_(e_illvar), varname);
|
||
return false;
|
||
}
|
||
}
|
||
return true;
|
||
}
|
||
|
||
/// Make a copy of an item
|
||
///
|
||
/// Lists and Dictionaries are also copied.
|
||
///
|
||
/// @param[in] conv If not NULL, convert all copied strings.
|
||
/// @param[in] from Value to copy.
|
||
/// @param[out] to Location where to copy to.
|
||
/// @param[in] deep If true, use copy the container and all of the contained
|
||
/// containers (nested).
|
||
/// @param[in] copyID If non-zero then when container is referenced more then
|
||
/// once then copy of it that was already done is used. E.g.
|
||
/// when copying list `list = [list2, list2]` (`list[0] is
|
||
/// list[1]`) var_item_copy with zero copyID will emit
|
||
/// a copy with (`copy[0] isnot copy[1]`), with non-zero it
|
||
/// will emit a copy with (`copy[0] is copy[1]`) like in the
|
||
/// original list. Not used when deep is false.
|
||
int var_item_copy(const vimconv_T *const conv,
|
||
typval_T *const from,
|
||
typval_T *const to,
|
||
const bool deep,
|
||
const int copyID)
|
||
FUNC_ATTR_NONNULL_ARG(2, 3)
|
||
{
|
||
static int recurse = 0;
|
||
int ret = OK;
|
||
|
||
if (recurse >= DICT_MAXNEST) {
|
||
EMSG(_("E698: variable nested too deep for making a copy"));
|
||
return FAIL;
|
||
}
|
||
++recurse;
|
||
|
||
switch (from->v_type) {
|
||
case VAR_NUMBER:
|
||
case VAR_FLOAT:
|
||
case VAR_FUNC:
|
||
case VAR_PARTIAL:
|
||
case VAR_BOOL:
|
||
case VAR_SPECIAL:
|
||
tv_copy(from, to);
|
||
break;
|
||
case VAR_STRING:
|
||
if (conv == NULL || conv->vc_type == CONV_NONE
|
||
|| from->vval.v_string == NULL) {
|
||
tv_copy(from, to);
|
||
} else {
|
||
to->v_type = VAR_STRING;
|
||
to->v_lock = 0;
|
||
if ((to->vval.v_string = string_convert((vimconv_T *)conv,
|
||
from->vval.v_string,
|
||
NULL))
|
||
== NULL) {
|
||
to->vval.v_string = (char_u *) xstrdup((char *) from->vval.v_string);
|
||
}
|
||
}
|
||
break;
|
||
case VAR_LIST:
|
||
to->v_type = VAR_LIST;
|
||
to->v_lock = 0;
|
||
if (from->vval.v_list == NULL) {
|
||
to->vval.v_list = NULL;
|
||
} else if (copyID != 0 && tv_list_copyid(from->vval.v_list) == copyID) {
|
||
// Use the copy made earlier.
|
||
to->vval.v_list = tv_list_latest_copy(from->vval.v_list);
|
||
tv_list_ref(to->vval.v_list);
|
||
} else {
|
||
to->vval.v_list = tv_list_copy(conv, from->vval.v_list, deep, copyID);
|
||
}
|
||
if (to->vval.v_list == NULL && from->vval.v_list != NULL) {
|
||
ret = FAIL;
|
||
}
|
||
break;
|
||
case VAR_DICT:
|
||
to->v_type = VAR_DICT;
|
||
to->v_lock = 0;
|
||
if (from->vval.v_dict == NULL) {
|
||
to->vval.v_dict = NULL;
|
||
} else if (copyID != 0 && from->vval.v_dict->dv_copyID == copyID) {
|
||
// use the copy made earlier
|
||
to->vval.v_dict = from->vval.v_dict->dv_copydict;
|
||
++to->vval.v_dict->dv_refcount;
|
||
} else {
|
||
to->vval.v_dict = tv_dict_copy(conv, from->vval.v_dict, deep, copyID);
|
||
}
|
||
if (to->vval.v_dict == NULL && from->vval.v_dict != NULL) {
|
||
ret = FAIL;
|
||
}
|
||
break;
|
||
case VAR_UNKNOWN:
|
||
internal_error("var_item_copy(UNKNOWN)");
|
||
ret = FAIL;
|
||
}
|
||
--recurse;
|
||
return ret;
|
||
}
|
||
|
||
/*
|
||
* ":echo expr1 ..." print each argument separated with a space, add a
|
||
* newline at the end.
|
||
* ":echon expr1 ..." print each argument plain.
|
||
*/
|
||
void ex_echo(exarg_T *eap)
|
||
{
|
||
char_u *arg = eap->arg;
|
||
typval_T rettv;
|
||
bool atstart = true;
|
||
bool need_clear = true;
|
||
const int did_emsg_before = did_emsg;
|
||
|
||
if (eap->skip)
|
||
++emsg_skip;
|
||
while (*arg != NUL && *arg != '|' && *arg != '\n' && !got_int) {
|
||
// If eval1() causes an error message the text from the command may
|
||
// still need to be cleared. E.g., "echo 22,44".
|
||
need_clr_eos = true;
|
||
|
||
{
|
||
char_u *p = arg;
|
||
if (eval1(&arg, &rettv, !eap->skip) == FAIL) {
|
||
// Report the invalid expression unless the expression evaluation
|
||
// has been cancelled due to an aborting error, an interrupt, or an
|
||
// exception.
|
||
if (!aborting() && did_emsg == did_emsg_before) {
|
||
EMSG2(_(e_invexpr2), p);
|
||
}
|
||
need_clr_eos = false;
|
||
break;
|
||
}
|
||
need_clr_eos = false;
|
||
}
|
||
|
||
if (!eap->skip) {
|
||
if (atstart) {
|
||
atstart = false;
|
||
/* Call msg_start() after eval1(), evaluating the expression
|
||
* may cause a message to appear. */
|
||
if (eap->cmdidx == CMD_echo) {
|
||
/* Mark the saved text as finishing the line, so that what
|
||
* follows is displayed on a new line when scrolling back
|
||
* at the more prompt. */
|
||
msg_sb_eol();
|
||
msg_start();
|
||
}
|
||
} else if (eap->cmdidx == CMD_echo) {
|
||
msg_puts_attr(" ", echo_attr);
|
||
}
|
||
char *tofree = encode_tv2echo(&rettv, NULL);
|
||
if (*tofree != NUL) {
|
||
msg_ext_set_kind("echo");
|
||
msg_multiline_attr(tofree, echo_attr, true, &need_clear);
|
||
}
|
||
xfree(tofree);
|
||
}
|
||
tv_clear(&rettv);
|
||
arg = skipwhite(arg);
|
||
}
|
||
eap->nextcmd = check_nextcmd(arg);
|
||
|
||
if (eap->skip) {
|
||
emsg_skip--;
|
||
} else {
|
||
// remove text that may still be there from the command
|
||
if (need_clear) {
|
||
msg_clr_eos();
|
||
}
|
||
if (eap->cmdidx == CMD_echo) {
|
||
msg_end();
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
* ":echohl {name}".
|
||
*/
|
||
void ex_echohl(exarg_T *eap)
|
||
{
|
||
echo_attr = syn_name2attr(eap->arg);
|
||
}
|
||
|
||
/*
|
||
* ":execute expr1 ..." execute the result of an expression.
|
||
* ":echomsg expr1 ..." Print a message
|
||
* ":echoerr expr1 ..." Print an error
|
||
* Each gets spaces around each argument and a newline at the end for
|
||
* echo commands
|
||
*/
|
||
void ex_execute(exarg_T *eap)
|
||
{
|
||
char_u *arg = eap->arg;
|
||
typval_T rettv;
|
||
int ret = OK;
|
||
garray_T ga;
|
||
int save_did_emsg;
|
||
|
||
ga_init(&ga, 1, 80);
|
||
|
||
if (eap->skip)
|
||
++emsg_skip;
|
||
while (*arg != NUL && *arg != '|' && *arg != '\n') {
|
||
ret = eval1_emsg(&arg, &rettv, !eap->skip);
|
||
if (ret == FAIL) {
|
||
break;
|
||
}
|
||
|
||
if (!eap->skip) {
|
||
char buf[NUMBUFLEN];
|
||
const char *const argstr = eap->cmdidx == CMD_execute
|
||
? tv_get_string_buf(&rettv, buf)
|
||
: tv_stringify(&rettv, buf);
|
||
const size_t len = strlen(argstr);
|
||
ga_grow(&ga, len + 2);
|
||
if (!GA_EMPTY(&ga)) {
|
||
((char_u *)(ga.ga_data))[ga.ga_len++] = ' ';
|
||
}
|
||
memcpy((char_u *)(ga.ga_data) + ga.ga_len, argstr, len + 1);
|
||
ga.ga_len += len;
|
||
}
|
||
|
||
tv_clear(&rettv);
|
||
arg = skipwhite(arg);
|
||
}
|
||
|
||
if (ret != FAIL && ga.ga_data != NULL) {
|
||
if (eap->cmdidx == CMD_echomsg || eap->cmdidx == CMD_echoerr) {
|
||
// Mark the already saved text as finishing the line, so that what
|
||
// follows is displayed on a new line when scrolling back at the
|
||
// more prompt.
|
||
msg_sb_eol();
|
||
}
|
||
|
||
if (eap->cmdidx == CMD_echomsg) {
|
||
msg_ext_set_kind("echomsg");
|
||
MSG_ATTR(ga.ga_data, echo_attr);
|
||
ui_flush();
|
||
} else if (eap->cmdidx == CMD_echoerr) {
|
||
// We don't want to abort following commands, restore did_emsg.
|
||
save_did_emsg = did_emsg;
|
||
msg_ext_set_kind("echoerr");
|
||
EMSG((char_u *)ga.ga_data);
|
||
if (!force_abort)
|
||
did_emsg = save_did_emsg;
|
||
} else if (eap->cmdidx == CMD_execute)
|
||
do_cmdline((char_u *)ga.ga_data,
|
||
eap->getline, eap->cookie, DOCMD_NOWAIT|DOCMD_VERBOSE);
|
||
}
|
||
|
||
ga_clear(&ga);
|
||
|
||
if (eap->skip)
|
||
--emsg_skip;
|
||
|
||
eap->nextcmd = check_nextcmd(arg);
|
||
}
|
||
|
||
/*
|
||
* Skip over the name of an option: "&option", "&g:option" or "&l:option".
|
||
* "arg" points to the "&" or '+' when called, to "option" when returning.
|
||
* Returns NULL when no option name found. Otherwise pointer to the char
|
||
* after the option name.
|
||
*/
|
||
static const char *find_option_end(const char **const arg, int *const opt_flags)
|
||
{
|
||
const char *p = *arg;
|
||
|
||
++p;
|
||
if (*p == 'g' && p[1] == ':') {
|
||
*opt_flags = OPT_GLOBAL;
|
||
p += 2;
|
||
} else if (*p == 'l' && p[1] == ':') {
|
||
*opt_flags = OPT_LOCAL;
|
||
p += 2;
|
||
} else {
|
||
*opt_flags = 0;
|
||
}
|
||
|
||
if (!ASCII_ISALPHA(*p)) {
|
||
return NULL;
|
||
}
|
||
*arg = p;
|
||
|
||
if (p[0] == 't' && p[1] == '_' && p[2] != NUL && p[3] != NUL) {
|
||
p += 4; // t_xx/termcap option
|
||
} else {
|
||
while (ASCII_ISALPHA(*p)) {
|
||
p++;
|
||
}
|
||
}
|
||
return p;
|
||
}
|
||
|
||
/// Start profiling function "fp".
|
||
void func_do_profile(ufunc_T *fp)
|
||
{
|
||
int len = fp->uf_lines.ga_len;
|
||
|
||
if (!fp->uf_prof_initialized) {
|
||
if (len == 0) {
|
||
len = 1; // avoid getting error for allocating zero bytes
|
||
}
|
||
fp->uf_tm_count = 0;
|
||
fp->uf_tm_self = profile_zero();
|
||
fp->uf_tm_total = profile_zero();
|
||
|
||
if (fp->uf_tml_count == NULL) {
|
||
fp->uf_tml_count = xcalloc(len, sizeof(int));
|
||
}
|
||
|
||
if (fp->uf_tml_total == NULL) {
|
||
fp->uf_tml_total = xcalloc(len, sizeof(proftime_T));
|
||
}
|
||
|
||
if (fp->uf_tml_self == NULL) {
|
||
fp->uf_tml_self = xcalloc(len, sizeof(proftime_T));
|
||
}
|
||
|
||
fp->uf_tml_idx = -1;
|
||
fp->uf_prof_initialized = true;
|
||
}
|
||
|
||
fp->uf_profiling = TRUE;
|
||
}
|
||
|
||
/*
|
||
* Dump the profiling results for all functions in file "fd".
|
||
*/
|
||
void func_dump_profile(FILE *fd)
|
||
{
|
||
hashitem_T *hi;
|
||
int todo;
|
||
ufunc_T *fp;
|
||
ufunc_T **sorttab;
|
||
int st_len = 0;
|
||
|
||
todo = (int)func_hashtab.ht_used;
|
||
if (todo == 0) {
|
||
return; // nothing to dump
|
||
}
|
||
|
||
sorttab = xmalloc(sizeof(ufunc_T *) * todo);
|
||
|
||
for (hi = func_hashtab.ht_array; todo > 0; ++hi) {
|
||
if (!HASHITEM_EMPTY(hi)) {
|
||
--todo;
|
||
fp = HI2UF(hi);
|
||
if (fp->uf_prof_initialized) {
|
||
sorttab[st_len++] = fp;
|
||
|
||
if (fp->uf_name[0] == K_SPECIAL) {
|
||
fprintf(fd, "FUNCTION <SNR>%s()\n", fp->uf_name + 3);
|
||
} else {
|
||
fprintf(fd, "FUNCTION %s()\n", fp->uf_name);
|
||
}
|
||
if (fp->uf_script_ctx.sc_sid != 0) {
|
||
bool should_free;
|
||
const LastSet last_set = (LastSet){
|
||
.script_ctx = fp->uf_script_ctx,
|
||
.channel_id = 0,
|
||
};
|
||
char_u *p = get_scriptname(last_set, &should_free);
|
||
fprintf(fd, " Defined: %s:%" PRIdLINENR "\n",
|
||
p, fp->uf_script_ctx.sc_lnum);
|
||
if (should_free) {
|
||
xfree(p);
|
||
}
|
||
}
|
||
if (fp->uf_tm_count == 1) {
|
||
fprintf(fd, "Called 1 time\n");
|
||
} else {
|
||
fprintf(fd, "Called %d times\n", fp->uf_tm_count);
|
||
}
|
||
fprintf(fd, "Total time: %s\n", profile_msg(fp->uf_tm_total));
|
||
fprintf(fd, " Self time: %s\n", profile_msg(fp->uf_tm_self));
|
||
fprintf(fd, "\n");
|
||
fprintf(fd, "count total (s) self (s)\n");
|
||
|
||
for (int i = 0; i < fp->uf_lines.ga_len; ++i) {
|
||
if (FUNCLINE(fp, i) == NULL)
|
||
continue;
|
||
prof_func_line(fd, fp->uf_tml_count[i],
|
||
&fp->uf_tml_total[i], &fp->uf_tml_self[i], TRUE);
|
||
fprintf(fd, "%s\n", FUNCLINE(fp, i));
|
||
}
|
||
fprintf(fd, "\n");
|
||
}
|
||
}
|
||
}
|
||
|
||
if (st_len > 0) {
|
||
qsort((void *)sorttab, (size_t)st_len, sizeof(ufunc_T *),
|
||
prof_total_cmp);
|
||
prof_sort_list(fd, sorttab, st_len, "TOTAL", FALSE);
|
||
qsort((void *)sorttab, (size_t)st_len, sizeof(ufunc_T *),
|
||
prof_self_cmp);
|
||
prof_sort_list(fd, sorttab, st_len, "SELF", TRUE);
|
||
}
|
||
|
||
xfree(sorttab);
|
||
}
|
||
|
||
static void
|
||
prof_sort_list(
|
||
FILE *fd,
|
||
ufunc_T **sorttab,
|
||
int st_len,
|
||
char *title,
|
||
int prefer_self // when equal print only self time
|
||
)
|
||
{
|
||
int i;
|
||
ufunc_T *fp;
|
||
|
||
fprintf(fd, "FUNCTIONS SORTED ON %s TIME\n", title);
|
||
fprintf(fd, "count total (s) self (s) function\n");
|
||
for (i = 0; i < 20 && i < st_len; ++i) {
|
||
fp = sorttab[i];
|
||
prof_func_line(fd, fp->uf_tm_count, &fp->uf_tm_total, &fp->uf_tm_self,
|
||
prefer_self);
|
||
if (fp->uf_name[0] == K_SPECIAL)
|
||
fprintf(fd, " <SNR>%s()\n", fp->uf_name + 3);
|
||
else
|
||
fprintf(fd, " %s()\n", fp->uf_name);
|
||
}
|
||
fprintf(fd, "\n");
|
||
}
|
||
|
||
/*
|
||
* Print the count and times for one function or function line.
|
||
*/
|
||
static void prof_func_line(
|
||
FILE *fd,
|
||
int count,
|
||
proftime_T *total,
|
||
proftime_T *self,
|
||
int prefer_self // when equal print only self time
|
||
)
|
||
{
|
||
if (count > 0) {
|
||
fprintf(fd, "%5d ", count);
|
||
if (prefer_self && profile_equal(*total, *self))
|
||
fprintf(fd, " ");
|
||
else
|
||
fprintf(fd, "%s ", profile_msg(*total));
|
||
if (!prefer_self && profile_equal(*total, *self))
|
||
fprintf(fd, " ");
|
||
else
|
||
fprintf(fd, "%s ", profile_msg(*self));
|
||
} else
|
||
fprintf(fd, " ");
|
||
}
|
||
|
||
/*
|
||
* Compare function for total time sorting.
|
||
*/
|
||
static int prof_total_cmp(const void *s1, const void *s2)
|
||
{
|
||
ufunc_T *p1 = *(ufunc_T **)s1;
|
||
ufunc_T *p2 = *(ufunc_T **)s2;
|
||
return profile_cmp(p1->uf_tm_total, p2->uf_tm_total);
|
||
}
|
||
|
||
/*
|
||
* Compare function for self time sorting.
|
||
*/
|
||
static int prof_self_cmp(const void *s1, const void *s2)
|
||
{
|
||
ufunc_T *p1 = *(ufunc_T **)s1;
|
||
ufunc_T *p2 = *(ufunc_T **)s2;
|
||
return profile_cmp(p1->uf_tm_self, p2->uf_tm_self);
|
||
}
|
||
|
||
/// Return the autoload script name for a function or variable name
|
||
/// Caller must make sure that "name" contains AUTOLOAD_CHAR.
|
||
///
|
||
/// @param[in] name Variable/function name.
|
||
/// @param[in] name_len Name length.
|
||
///
|
||
/// @return [allocated] autoload script name.
|
||
char *autoload_name(const char *const name, const size_t name_len)
|
||
FUNC_ATTR_MALLOC FUNC_ATTR_WARN_UNUSED_RESULT
|
||
{
|
||
// Get the script file name: replace '#' with '/', append ".vim".
|
||
char *const scriptname = xmalloc(name_len + sizeof("autoload/.vim"));
|
||
memcpy(scriptname, "autoload/", sizeof("autoload/") - 1);
|
||
memcpy(scriptname + sizeof("autoload/") - 1, name, name_len);
|
||
size_t auchar_idx = 0;
|
||
for (size_t i = sizeof("autoload/") - 1;
|
||
i - sizeof("autoload/") + 1 < name_len;
|
||
i++) {
|
||
if (scriptname[i] == AUTOLOAD_CHAR) {
|
||
scriptname[i] = '/';
|
||
auchar_idx = i;
|
||
}
|
||
}
|
||
memcpy(scriptname + auchar_idx, ".vim", sizeof(".vim"));
|
||
|
||
return scriptname;
|
||
}
|
||
|
||
/// If name has a package name try autoloading the script for it
|
||
///
|
||
/// @param[in] name Variable/function name.
|
||
/// @param[in] name_len Name length.
|
||
/// @param[in] reload If true, load script again when already loaded.
|
||
///
|
||
/// @return true if a package was loaded.
|
||
bool script_autoload(const char *const name, const size_t name_len,
|
||
const bool reload)
|
||
{
|
||
// If there is no '#' after name[0] there is no package name.
|
||
const char *p = memchr(name, AUTOLOAD_CHAR, name_len);
|
||
if (p == NULL || p == name) {
|
||
return false;
|
||
}
|
||
|
||
bool ret = false;
|
||
char *tofree = autoload_name(name, name_len);
|
||
char *scriptname = tofree;
|
||
|
||
// Find the name in the list of previously loaded package names. Skip
|
||
// "autoload/", it's always the same.
|
||
int i = 0;
|
||
for (; i < ga_loaded.ga_len; i++) {
|
||
if (STRCMP(((char **)ga_loaded.ga_data)[i] + 9, scriptname + 9) == 0) {
|
||
break;
|
||
}
|
||
}
|
||
if (!reload && i < ga_loaded.ga_len) {
|
||
ret = false; // Was loaded already.
|
||
} else {
|
||
// Remember the name if it wasn't loaded already.
|
||
if (i == ga_loaded.ga_len) {
|
||
GA_APPEND(char *, &ga_loaded, scriptname);
|
||
tofree = NULL;
|
||
}
|
||
|
||
// Try loading the package from $VIMRUNTIME/autoload/<name>.vim
|
||
if (source_runtime((char_u *)scriptname, 0) == OK) {
|
||
ret = true;
|
||
}
|
||
}
|
||
|
||
xfree(tofree);
|
||
return ret;
|
||
}
|
||
|
||
/*
|
||
* Called when starting to read a function line.
|
||
* "sourcing_lnum" must be correct!
|
||
* When skipping lines it may not actually be executed, but we won't find out
|
||
* until later and we need to store the time now.
|
||
*/
|
||
void func_line_start(void *cookie)
|
||
{
|
||
funccall_T *fcp = (funccall_T *)cookie;
|
||
ufunc_T *fp = fcp->func;
|
||
|
||
if (fp->uf_profiling && sourcing_lnum >= 1
|
||
&& sourcing_lnum <= fp->uf_lines.ga_len) {
|
||
fp->uf_tml_idx = sourcing_lnum - 1;
|
||
// Skip continuation lines.
|
||
while (fp->uf_tml_idx > 0 && FUNCLINE(fp, fp->uf_tml_idx) == NULL) {
|
||
fp->uf_tml_idx--;
|
||
}
|
||
fp->uf_tml_execed = false;
|
||
fp->uf_tml_start = profile_start();
|
||
fp->uf_tml_children = profile_zero();
|
||
fp->uf_tml_wait = profile_get_wait();
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Called when actually executing a function line.
|
||
*/
|
||
void func_line_exec(void *cookie)
|
||
{
|
||
funccall_T *fcp = (funccall_T *)cookie;
|
||
ufunc_T *fp = fcp->func;
|
||
|
||
if (fp->uf_profiling && fp->uf_tml_idx >= 0)
|
||
fp->uf_tml_execed = TRUE;
|
||
}
|
||
|
||
/*
|
||
* Called when done with a function line.
|
||
*/
|
||
void func_line_end(void *cookie)
|
||
{
|
||
funccall_T *fcp = (funccall_T *)cookie;
|
||
ufunc_T *fp = fcp->func;
|
||
|
||
if (fp->uf_profiling && fp->uf_tml_idx >= 0) {
|
||
if (fp->uf_tml_execed) {
|
||
++fp->uf_tml_count[fp->uf_tml_idx];
|
||
fp->uf_tml_start = profile_end(fp->uf_tml_start);
|
||
fp->uf_tml_start = profile_sub_wait(fp->uf_tml_wait, fp->uf_tml_start);
|
||
fp->uf_tml_total[fp->uf_tml_idx] =
|
||
profile_add(fp->uf_tml_total[fp->uf_tml_idx], fp->uf_tml_start);
|
||
fp->uf_tml_self[fp->uf_tml_idx] =
|
||
profile_self(fp->uf_tml_self[fp->uf_tml_idx], fp->uf_tml_start,
|
||
fp->uf_tml_children);
|
||
}
|
||
fp->uf_tml_idx = -1;
|
||
}
|
||
}
|
||
|
||
static var_flavour_T var_flavour(char_u *varname)
|
||
{
|
||
char_u *p = varname;
|
||
|
||
if (ASCII_ISUPPER(*p)) {
|
||
while (*(++p))
|
||
if (ASCII_ISLOWER(*p)) {
|
||
return VAR_FLAVOUR_SESSION;
|
||
}
|
||
return VAR_FLAVOUR_SHADA;
|
||
} else {
|
||
return VAR_FLAVOUR_DEFAULT;
|
||
}
|
||
}
|
||
|
||
/// Iterate over global variables
|
||
///
|
||
/// @warning No modifications to global variable dictionary must be performed
|
||
/// while iteration is in progress.
|
||
///
|
||
/// @param[in] iter Iterator. Pass NULL to start iteration.
|
||
/// @param[out] name Variable name.
|
||
/// @param[out] rettv Variable value.
|
||
///
|
||
/// @return Pointer that needs to be passed to next `var_shada_iter` invocation
|
||
/// or NULL to indicate that iteration is over.
|
||
const void *var_shada_iter(const void *const iter, const char **const name,
|
||
typval_T *rettv, var_flavour_T flavour)
|
||
FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ARG(2, 3)
|
||
{
|
||
const hashitem_T *hi;
|
||
const hashitem_T *hifirst = globvarht.ht_array;
|
||
const size_t hinum = (size_t) globvarht.ht_mask + 1;
|
||
*name = NULL;
|
||
if (iter == NULL) {
|
||
hi = globvarht.ht_array;
|
||
while ((size_t) (hi - hifirst) < hinum
|
||
&& (HASHITEM_EMPTY(hi)
|
||
|| !(var_flavour(hi->hi_key) & flavour))) {
|
||
hi++;
|
||
}
|
||
if ((size_t) (hi - hifirst) == hinum) {
|
||
return NULL;
|
||
}
|
||
} else {
|
||
hi = (const hashitem_T *) iter;
|
||
}
|
||
*name = (char *)TV_DICT_HI2DI(hi)->di_key;
|
||
tv_copy(&TV_DICT_HI2DI(hi)->di_tv, rettv);
|
||
while ((size_t)(++hi - hifirst) < hinum) {
|
||
if (!HASHITEM_EMPTY(hi) && (var_flavour(hi->hi_key) & flavour)) {
|
||
return hi;
|
||
}
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
void var_set_global(const char *const name, typval_T vartv)
|
||
{
|
||
funccal_entry_T funccall_entry;
|
||
|
||
save_funccal(&funccall_entry);
|
||
set_var(name, strlen(name), &vartv, false);
|
||
restore_funccal();
|
||
}
|
||
|
||
int store_session_globals(FILE *fd)
|
||
{
|
||
TV_DICT_ITER(&globvardict, this_var, {
|
||
if ((this_var->di_tv.v_type == VAR_NUMBER
|
||
|| this_var->di_tv.v_type == VAR_STRING)
|
||
&& var_flavour(this_var->di_key) == VAR_FLAVOUR_SESSION) {
|
||
// Escape special characters with a backslash. Turn a LF and
|
||
// CR into \n and \r.
|
||
char_u *const p = vim_strsave_escaped(
|
||
(const char_u *)tv_get_string(&this_var->di_tv),
|
||
(const char_u *)"\\\"\n\r");
|
||
for (char_u *t = p; *t != NUL; t++) {
|
||
if (*t == '\n') {
|
||
*t = 'n';
|
||
} else if (*t == '\r') {
|
||
*t = 'r';
|
||
}
|
||
}
|
||
if ((fprintf(fd, "let %s = %c%s%c",
|
||
this_var->di_key,
|
||
((this_var->di_tv.v_type == VAR_STRING) ? '"'
|
||
: ' '),
|
||
p,
|
||
((this_var->di_tv.v_type == VAR_STRING) ? '"'
|
||
: ' ')) < 0)
|
||
|| put_eol(fd) == FAIL) {
|
||
xfree(p);
|
||
return FAIL;
|
||
}
|
||
xfree(p);
|
||
} else if (this_var->di_tv.v_type == VAR_FLOAT
|
||
&& var_flavour(this_var->di_key) == VAR_FLAVOUR_SESSION) {
|
||
float_T f = this_var->di_tv.vval.v_float;
|
||
int sign = ' ';
|
||
|
||
if (f < 0) {
|
||
f = -f;
|
||
sign = '-';
|
||
}
|
||
if ((fprintf(fd, "let %s = %c%f", this_var->di_key, sign, f) < 0)
|
||
|| put_eol(fd) == FAIL) {
|
||
return FAIL;
|
||
}
|
||
}
|
||
});
|
||
return OK;
|
||
}
|
||
|
||
/*
|
||
* Display script name where an item was last set.
|
||
* Should only be invoked when 'verbose' is non-zero.
|
||
*/
|
||
void last_set_msg(sctx_T script_ctx)
|
||
{
|
||
const LastSet last_set = (LastSet){
|
||
.script_ctx = script_ctx,
|
||
.channel_id = 0,
|
||
};
|
||
option_last_set_msg(last_set);
|
||
}
|
||
|
||
/// Displays where an option was last set.
|
||
///
|
||
/// Should only be invoked when 'verbose' is non-zero.
|
||
void option_last_set_msg(LastSet last_set)
|
||
{
|
||
if (last_set.script_ctx.sc_sid != 0) {
|
||
bool should_free;
|
||
char_u *p = get_scriptname(last_set, &should_free);
|
||
verbose_enter();
|
||
MSG_PUTS(_("\n\tLast set from "));
|
||
MSG_PUTS(p);
|
||
if (last_set.script_ctx.sc_lnum > 0) {
|
||
MSG_PUTS(_(line_msg));
|
||
msg_outnum((long)last_set.script_ctx.sc_lnum);
|
||
}
|
||
if (should_free) {
|
||
xfree(p);
|
||
}
|
||
verbose_leave();
|
||
}
|
||
}
|
||
|
||
// reset v:option_new, v:option_old and v:option_type
|
||
void reset_v_option_vars(void)
|
||
{
|
||
set_vim_var_string(VV_OPTION_NEW, NULL, -1);
|
||
set_vim_var_string(VV_OPTION_OLD, NULL, -1);
|
||
set_vim_var_string(VV_OPTION_TYPE, NULL, -1);
|
||
}
|
||
|
||
/*
|
||
* Adjust a filename, according to a string of modifiers.
|
||
* *fnamep must be NUL terminated when called. When returning, the length is
|
||
* determined by *fnamelen.
|
||
* Returns VALID_ flags or -1 for failure.
|
||
* When there is an error, *fnamep is set to NULL.
|
||
*/
|
||
int
|
||
modify_fname(
|
||
char_u *src, // string with modifiers
|
||
bool tilde_file, // "~" is a file name, not $HOME
|
||
size_t *usedlen, // characters after src that are used
|
||
char_u **fnamep, // file name so far
|
||
char_u **bufp, // buffer for allocated file name or NULL
|
||
size_t *fnamelen // length of fnamep
|
||
)
|
||
{
|
||
int valid = 0;
|
||
char_u *tail;
|
||
char_u *s, *p, *pbuf;
|
||
char_u dirname[MAXPATHL];
|
||
int c;
|
||
int has_fullname = 0;
|
||
|
||
repeat:
|
||
// ":p" - full path/file_name
|
||
if (src[*usedlen] == ':' && src[*usedlen + 1] == 'p') {
|
||
has_fullname = 1;
|
||
|
||
valid |= VALID_PATH;
|
||
*usedlen += 2;
|
||
|
||
// Expand "~/path" for all systems and "~user/path" for Unix
|
||
if ((*fnamep)[0] == '~'
|
||
#if !defined(UNIX)
|
||
&& ((*fnamep)[1] == '/'
|
||
# ifdef BACKSLASH_IN_FILENAME
|
||
|| (*fnamep)[1] == '\\'
|
||
# endif
|
||
|| (*fnamep)[1] == NUL)
|
||
#endif
|
||
&& !(tilde_file && (*fnamep)[1] == NUL)
|
||
) {
|
||
*fnamep = expand_env_save(*fnamep);
|
||
xfree(*bufp); // free any allocated file name
|
||
*bufp = *fnamep;
|
||
if (*fnamep == NULL)
|
||
return -1;
|
||
}
|
||
|
||
// When "/." or "/.." is used: force expansion to get rid of it.
|
||
for (p = *fnamep; *p != NUL; MB_PTR_ADV(p)) {
|
||
if (vim_ispathsep(*p)
|
||
&& p[1] == '.'
|
||
&& (p[2] == NUL
|
||
|| vim_ispathsep(p[2])
|
||
|| (p[2] == '.'
|
||
&& (p[3] == NUL || vim_ispathsep(p[3]))))) {
|
||
break;
|
||
}
|
||
}
|
||
|
||
// FullName_save() is slow, don't use it when not needed.
|
||
if (*p != NUL || !vim_isAbsName(*fnamep)) {
|
||
*fnamep = (char_u *)FullName_save((char *)(*fnamep), *p != NUL);
|
||
xfree(*bufp); // free any allocated file name
|
||
*bufp = *fnamep;
|
||
if (*fnamep == NULL)
|
||
return -1;
|
||
}
|
||
|
||
// Append a path separator to a directory.
|
||
if (os_isdir(*fnamep)) {
|
||
// Make room for one or two extra characters.
|
||
*fnamep = vim_strnsave(*fnamep, STRLEN(*fnamep) + 2);
|
||
xfree(*bufp); // free any allocated file name
|
||
*bufp = *fnamep;
|
||
if (*fnamep == NULL)
|
||
return -1;
|
||
add_pathsep((char *)*fnamep);
|
||
}
|
||
}
|
||
|
||
// ":." - path relative to the current directory
|
||
// ":~" - path relative to the home directory
|
||
// ":8" - shortname path - postponed till after
|
||
while (src[*usedlen] == ':'
|
||
&& ((c = src[*usedlen + 1]) == '.' || c == '~' || c == '8')) {
|
||
*usedlen += 2;
|
||
if (c == '8') {
|
||
continue;
|
||
}
|
||
pbuf = NULL;
|
||
// Need full path first (use expand_env() to remove a "~/")
|
||
if (!has_fullname) {
|
||
if (c == '.' && **fnamep == '~')
|
||
p = pbuf = expand_env_save(*fnamep);
|
||
else
|
||
p = pbuf = (char_u *)FullName_save((char *)*fnamep, FALSE);
|
||
} else
|
||
p = *fnamep;
|
||
|
||
has_fullname = 0;
|
||
|
||
if (p != NULL) {
|
||
if (c == '.') {
|
||
os_dirname(dirname, MAXPATHL);
|
||
s = path_shorten_fname(p, dirname);
|
||
if (s != NULL) {
|
||
*fnamep = s;
|
||
if (pbuf != NULL) {
|
||
xfree(*bufp); // free any allocated file name
|
||
*bufp = pbuf;
|
||
pbuf = NULL;
|
||
}
|
||
}
|
||
} else {
|
||
home_replace(NULL, p, dirname, MAXPATHL, true);
|
||
// Only replace it when it starts with '~'
|
||
if (*dirname == '~') {
|
||
s = vim_strsave(dirname);
|
||
*fnamep = s;
|
||
xfree(*bufp);
|
||
*bufp = s;
|
||
}
|
||
}
|
||
xfree(pbuf);
|
||
}
|
||
}
|
||
|
||
tail = path_tail(*fnamep);
|
||
*fnamelen = STRLEN(*fnamep);
|
||
|
||
// ":h" - head, remove "/file_name", can be repeated
|
||
// Don't remove the first "/" or "c:\"
|
||
while (src[*usedlen] == ':' && src[*usedlen + 1] == 'h') {
|
||
valid |= VALID_HEAD;
|
||
*usedlen += 2;
|
||
s = get_past_head(*fnamep);
|
||
while (tail > s && after_pathsep((char *)s, (char *)tail)) {
|
||
MB_PTR_BACK(*fnamep, tail);
|
||
}
|
||
*fnamelen = (size_t)(tail - *fnamep);
|
||
if (*fnamelen == 0) {
|
||
// Result is empty. Turn it into "." to make ":cd %:h" work.
|
||
xfree(*bufp);
|
||
*bufp = *fnamep = tail = vim_strsave((char_u *)".");
|
||
*fnamelen = 1;
|
||
} else {
|
||
while (tail > s && !after_pathsep((char *)s, (char *)tail)) {
|
||
MB_PTR_BACK(*fnamep, tail);
|
||
}
|
||
}
|
||
}
|
||
|
||
// ":8" - shortname
|
||
if (src[*usedlen] == ':' && src[*usedlen + 1] == '8') {
|
||
*usedlen += 2;
|
||
}
|
||
|
||
|
||
// ":t" - tail, just the basename
|
||
if (src[*usedlen] == ':' && src[*usedlen + 1] == 't') {
|
||
*usedlen += 2;
|
||
*fnamelen -= (size_t)(tail - *fnamep);
|
||
*fnamep = tail;
|
||
}
|
||
|
||
// ":e" - extension, can be repeated
|
||
// ":r" - root, without extension, can be repeated
|
||
while (src[*usedlen] == ':'
|
||
&& (src[*usedlen + 1] == 'e' || src[*usedlen + 1] == 'r')) {
|
||
/* find a '.' in the tail:
|
||
* - for second :e: before the current fname
|
||
* - otherwise: The last '.'
|
||
*/
|
||
const bool is_second_e = *fnamep > tail;
|
||
if (src[*usedlen + 1] == 'e' && is_second_e) {
|
||
s = *fnamep - 2;
|
||
} else {
|
||
s = *fnamep + *fnamelen - 1;
|
||
}
|
||
|
||
for (; s > tail; s--) {
|
||
if (s[0] == '.') {
|
||
break;
|
||
}
|
||
}
|
||
if (src[*usedlen + 1] == 'e') {
|
||
if (s > tail || (0 && is_second_e && s == tail)) {
|
||
// we stopped at a '.' (so anchor to &'.' + 1)
|
||
char_u *newstart = s + 1;
|
||
size_t distance_stepped_back = *fnamep - newstart;
|
||
*fnamelen += distance_stepped_back;
|
||
*fnamep = newstart;
|
||
} else if (*fnamep <= tail) {
|
||
*fnamelen = 0;
|
||
}
|
||
} else {
|
||
// :r - Remove one extension
|
||
//
|
||
// Ensure that `s` doesn't go before `*fnamep`,
|
||
// since then we're taking too many roots:
|
||
//
|
||
// "path/to/this.file.ext" :e:e:r:r
|
||
// ^ ^-------- *fnamep
|
||
// +------------- tail
|
||
//
|
||
// Also ensure `s` doesn't go before `tail`,
|
||
// since then we're taking too many roots again:
|
||
//
|
||
// "path/to/this.file.ext" :r:r:r
|
||
// ^ ^------------- tail
|
||
// +--------------------- *fnamep
|
||
if (s > MAX(tail, *fnamep)) {
|
||
*fnamelen = (size_t)(s - *fnamep);
|
||
}
|
||
}
|
||
*usedlen += 2;
|
||
}
|
||
|
||
// ":s?pat?foo?" - substitute
|
||
// ":gs?pat?foo?" - global substitute
|
||
if (src[*usedlen] == ':'
|
||
&& (src[*usedlen + 1] == 's'
|
||
|| (src[*usedlen + 1] == 'g' && src[*usedlen + 2] == 's'))) {
|
||
char_u *str;
|
||
char_u *pat;
|
||
char_u *sub;
|
||
int sep;
|
||
char_u *flags;
|
||
int didit = FALSE;
|
||
|
||
flags = (char_u *)"";
|
||
s = src + *usedlen + 2;
|
||
if (src[*usedlen + 1] == 'g') {
|
||
flags = (char_u *)"g";
|
||
++s;
|
||
}
|
||
|
||
sep = *s++;
|
||
if (sep) {
|
||
// find end of pattern
|
||
p = vim_strchr(s, sep);
|
||
if (p != NULL) {
|
||
pat = vim_strnsave(s, (int)(p - s));
|
||
s = p + 1;
|
||
// find end of substitution
|
||
p = vim_strchr(s, sep);
|
||
if (p != NULL) {
|
||
sub = vim_strnsave(s, (int)(p - s));
|
||
str = vim_strnsave(*fnamep, *fnamelen);
|
||
*usedlen = (size_t)(p + 1 - src);
|
||
s = do_string_sub(str, pat, sub, NULL, flags);
|
||
*fnamep = s;
|
||
*fnamelen = STRLEN(s);
|
||
xfree(*bufp);
|
||
*bufp = s;
|
||
didit = TRUE;
|
||
xfree(sub);
|
||
xfree(str);
|
||
}
|
||
xfree(pat);
|
||
}
|
||
// after using ":s", repeat all the modifiers
|
||
if (didit) {
|
||
goto repeat;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (src[*usedlen] == ':' && src[*usedlen + 1] == 'S') {
|
||
// vim_strsave_shellescape() needs a NUL terminated string.
|
||
c = (*fnamep)[*fnamelen];
|
||
if (c != NUL) {
|
||
(*fnamep)[*fnamelen] = NUL;
|
||
}
|
||
p = vim_strsave_shellescape(*fnamep, false, false);
|
||
if (c != NUL) {
|
||
(*fnamep)[*fnamelen] = c;
|
||
}
|
||
xfree(*bufp);
|
||
*bufp = *fnamep = p;
|
||
*fnamelen = STRLEN(p);
|
||
*usedlen += 2;
|
||
}
|
||
|
||
return valid;
|
||
}
|
||
|
||
/// Perform a substitution on "str" with pattern "pat" and substitute "sub".
|
||
/// When "sub" is NULL "expr" is used, must be a VAR_FUNC or VAR_PARTIAL.
|
||
/// "flags" can be "g" to do a global substitute.
|
||
/// Returns an allocated string, NULL for error.
|
||
char_u *do_string_sub(char_u *str, char_u *pat, char_u *sub,
|
||
typval_T *expr, char_u *flags)
|
||
{
|
||
int sublen;
|
||
regmatch_T regmatch;
|
||
int do_all;
|
||
char_u *tail;
|
||
char_u *end;
|
||
garray_T ga;
|
||
char_u *save_cpo;
|
||
char_u *zero_width = NULL;
|
||
|
||
// Make 'cpoptions' empty, so that the 'l' flag doesn't work here
|
||
save_cpo = p_cpo;
|
||
p_cpo = empty_option;
|
||
|
||
ga_init(&ga, 1, 200);
|
||
|
||
do_all = (flags[0] == 'g');
|
||
|
||
regmatch.rm_ic = p_ic;
|
||
regmatch.regprog = vim_regcomp(pat, RE_MAGIC + RE_STRING);
|
||
if (regmatch.regprog != NULL) {
|
||
tail = str;
|
||
end = str + STRLEN(str);
|
||
while (vim_regexec_nl(®match, str, (colnr_T)(tail - str))) {
|
||
// Skip empty match except for first match.
|
||
if (regmatch.startp[0] == regmatch.endp[0]) {
|
||
if (zero_width == regmatch.startp[0]) {
|
||
// avoid getting stuck on a match with an empty string
|
||
int i = utfc_ptr2len(tail);
|
||
memmove((char_u *)ga.ga_data + ga.ga_len, tail, (size_t)i);
|
||
ga.ga_len += i;
|
||
tail += i;
|
||
continue;
|
||
}
|
||
zero_width = regmatch.startp[0];
|
||
}
|
||
|
||
// Get some space for a temporary buffer to do the substitution
|
||
// into. It will contain:
|
||
// - The text up to where the match is.
|
||
// - The substituted text.
|
||
// - The text after the match.
|
||
sublen = vim_regsub(®match, sub, expr, tail, false, true, false);
|
||
ga_grow(&ga, (int)((end - tail) + sublen -
|
||
(regmatch.endp[0] - regmatch.startp[0])));
|
||
|
||
// copy the text up to where the match is
|
||
int i = (int)(regmatch.startp[0] - tail);
|
||
memmove((char_u *)ga.ga_data + ga.ga_len, tail, (size_t)i);
|
||
// add the substituted text
|
||
(void)vim_regsub(®match, sub, expr, (char_u *)ga.ga_data
|
||
+ ga.ga_len + i, true, true, false);
|
||
ga.ga_len += i + sublen - 1;
|
||
tail = regmatch.endp[0];
|
||
if (*tail == NUL)
|
||
break;
|
||
if (!do_all)
|
||
break;
|
||
}
|
||
|
||
if (ga.ga_data != NULL)
|
||
STRCPY((char *)ga.ga_data + ga.ga_len, tail);
|
||
|
||
vim_regfree(regmatch.regprog);
|
||
}
|
||
|
||
char_u *ret = vim_strsave(ga.ga_data == NULL ? str : (char_u *)ga.ga_data);
|
||
ga_clear(&ga);
|
||
if (p_cpo == empty_option) {
|
||
p_cpo = save_cpo;
|
||
} else {
|
||
// Darn, evaluating {sub} expression or {expr} changed the value.
|
||
free_string_option(save_cpo);
|
||
}
|
||
|
||
return ret;
|
||
}
|
||
|
||
/// common code for getting job callbacks for jobstart, termopen and rpcstart
|
||
///
|
||
/// @return true/false on success/failure.
|
||
bool common_job_callbacks(dict_T *vopts,
|
||
CallbackReader *on_stdout,
|
||
CallbackReader *on_stderr,
|
||
Callback *on_exit)
|
||
{
|
||
if (tv_dict_get_callback(vopts, S_LEN("on_stdout"), &on_stdout->cb)
|
||
&&tv_dict_get_callback(vopts, S_LEN("on_stderr"), &on_stderr->cb)
|
||
&& tv_dict_get_callback(vopts, S_LEN("on_exit"), on_exit)) {
|
||
on_stdout->buffered = tv_dict_get_number(vopts, "stdout_buffered");
|
||
on_stderr->buffered = tv_dict_get_number(vopts, "stderr_buffered");
|
||
if (on_stdout->buffered && on_stdout->cb.type == kCallbackNone) {
|
||
on_stdout->self = vopts;
|
||
}
|
||
if (on_stderr->buffered && on_stderr->cb.type == kCallbackNone) {
|
||
on_stderr->self = vopts;
|
||
}
|
||
vopts->dv_refcount++;
|
||
return true;
|
||
}
|
||
|
||
callback_reader_free(on_stdout);
|
||
callback_reader_free(on_stderr);
|
||
callback_free(on_exit);
|
||
return false;
|
||
}
|
||
|
||
|
||
Channel *find_job(uint64_t id, bool show_error)
|
||
{
|
||
Channel *data = find_channel(id);
|
||
if (!data || data->streamtype != kChannelStreamProc
|
||
|| process_is_stopped(&data->stream.proc)) {
|
||
if (show_error) {
|
||
if (data && data->streamtype != kChannelStreamProc) {
|
||
EMSG(_(e_invchanjob));
|
||
} else {
|
||
EMSG(_(e_invchan));
|
||
}
|
||
}
|
||
return NULL;
|
||
}
|
||
return data;
|
||
}
|
||
|
||
|
||
void script_host_eval(char *name, typval_T *argvars, typval_T *rettv)
|
||
{
|
||
if (check_restricted() || check_secure()) {
|
||
return;
|
||
}
|
||
|
||
if (argvars[0].v_type != VAR_STRING) {
|
||
EMSG(_(e_invarg));
|
||
return;
|
||
}
|
||
|
||
list_T *args = tv_list_alloc(1);
|
||
tv_list_append_string(args, (const char *)argvars[0].vval.v_string, -1);
|
||
*rettv = eval_call_provider(name, "eval", args);
|
||
}
|
||
|
||
typval_T eval_call_provider(char *provider, char *method, list_T *arguments)
|
||
{
|
||
if (!eval_has_provider(provider)) {
|
||
emsgf("E319: No \"%s\" provider found. Run \":checkhealth provider\"",
|
||
provider);
|
||
return (typval_T){
|
||
.v_type = VAR_NUMBER,
|
||
.v_lock = VAR_UNLOCKED,
|
||
.vval.v_number = (varnumber_T)0
|
||
};
|
||
}
|
||
|
||
char func[256];
|
||
int name_len = snprintf(func, sizeof(func), "provider#%s#Call", provider);
|
||
|
||
// Save caller scope information
|
||
struct caller_scope saved_provider_caller_scope = provider_caller_scope;
|
||
provider_caller_scope = (struct caller_scope) {
|
||
.script_ctx = current_sctx,
|
||
.sourcing_name = sourcing_name,
|
||
.sourcing_lnum = sourcing_lnum,
|
||
.autocmd_fname = autocmd_fname,
|
||
.autocmd_match = autocmd_match,
|
||
.autocmd_bufnr = autocmd_bufnr,
|
||
.funccalp = (void *)get_current_funccal()
|
||
};
|
||
funccal_entry_T funccal_entry;
|
||
save_funccal(&funccal_entry);
|
||
provider_call_nesting++;
|
||
|
||
typval_T argvars[3] = {
|
||
{.v_type = VAR_STRING, .vval.v_string = (uint8_t *)method, .v_lock = 0},
|
||
{.v_type = VAR_LIST, .vval.v_list = arguments, .v_lock = 0},
|
||
{.v_type = VAR_UNKNOWN}
|
||
};
|
||
typval_T rettv = { .v_type = VAR_UNKNOWN, .v_lock = VAR_UNLOCKED };
|
||
tv_list_ref(arguments);
|
||
|
||
int dummy;
|
||
(void)call_func((const char_u *)func,
|
||
name_len,
|
||
&rettv,
|
||
2,
|
||
argvars,
|
||
NULL,
|
||
curwin->w_cursor.lnum,
|
||
curwin->w_cursor.lnum,
|
||
&dummy,
|
||
true,
|
||
NULL,
|
||
NULL);
|
||
|
||
tv_list_unref(arguments);
|
||
// Restore caller scope information
|
||
restore_funccal();
|
||
provider_caller_scope = saved_provider_caller_scope;
|
||
provider_call_nesting--;
|
||
assert(provider_call_nesting >= 0);
|
||
|
||
return rettv;
|
||
}
|
||
|
||
/// Checks if provider for feature `feat` is enabled.
|
||
bool eval_has_provider(const char *feat)
|
||
{
|
||
if (!strequal(feat, "clipboard")
|
||
&& !strequal(feat, "python")
|
||
&& !strequal(feat, "python3")
|
||
&& !strequal(feat, "python_compiled")
|
||
&& !strequal(feat, "python_dynamic")
|
||
&& !strequal(feat, "python3_compiled")
|
||
&& !strequal(feat, "python3_dynamic")
|
||
&& !strequal(feat, "perl")
|
||
&& !strequal(feat, "ruby")
|
||
&& !strequal(feat, "node")) {
|
||
// Avoid autoload for non-provider has() features.
|
||
return false;
|
||
}
|
||
|
||
char name[32]; // Normalized: "python_compiled" => "python".
|
||
snprintf(name, sizeof(name), "%s", feat);
|
||
strchrsub(name, '_', '\0'); // Chop any "_xx" suffix.
|
||
|
||
char buf[256];
|
||
typval_T tv;
|
||
// Get the g:loaded_xx_provider variable.
|
||
int len = snprintf(buf, sizeof(buf), "g:loaded_%s_provider", name);
|
||
if (get_var_tv(buf, len, &tv, NULL, false, true) == FAIL) {
|
||
// Trigger autoload once.
|
||
len = snprintf(buf, sizeof(buf), "provider#%s#bogus", name);
|
||
script_autoload(buf, len, false);
|
||
|
||
// Retry the (non-autoload-style) variable.
|
||
len = snprintf(buf, sizeof(buf), "g:loaded_%s_provider", name);
|
||
if (get_var_tv(buf, len, &tv, NULL, false, true) == FAIL) {
|
||
// Show a hint if Call() is defined but g:loaded_xx_provider is missing.
|
||
snprintf(buf, sizeof(buf), "provider#%s#Call", name);
|
||
if (!!find_func((char_u *)buf) && p_lpl) {
|
||
emsgf("provider: %s: missing required variable g:loaded_%s_provider",
|
||
name, name);
|
||
}
|
||
return false;
|
||
}
|
||
}
|
||
|
||
bool ok = (tv.v_type == VAR_NUMBER)
|
||
? 2 == tv.vval.v_number // Value of 2 means "loaded and working".
|
||
: false;
|
||
|
||
if (ok) {
|
||
// Call() must be defined if provider claims to be working.
|
||
snprintf(buf, sizeof(buf), "provider#%s#Call", name);
|
||
if (!find_func((char_u *)buf)) {
|
||
emsgf("provider: %s: g:loaded_%s_provider=2 but %s is not defined",
|
||
name, name, buf);
|
||
ok = false;
|
||
}
|
||
}
|
||
|
||
return ok;
|
||
}
|
||
|
||
/// Writes "<sourcing_name>:<sourcing_lnum>" to `buf[bufsize]`.
|
||
void eval_fmt_source_name_line(char *buf, size_t bufsize)
|
||
{
|
||
if (sourcing_name) {
|
||
snprintf(buf, bufsize, "%s:%" PRIdLINENR, sourcing_name, sourcing_lnum);
|
||
} else {
|
||
snprintf(buf, bufsize, "?");
|
||
}
|
||
}
|
||
|
||
/// ":checkhealth [plugins]"
|
||
void ex_checkhealth(exarg_T *eap)
|
||
{
|
||
bool found = !!find_func((char_u *)"health#check");
|
||
if (!found
|
||
&& script_autoload("health#check", sizeof("health#check") - 1, false)) {
|
||
found = !!find_func((char_u *)"health#check");
|
||
}
|
||
if (!found) {
|
||
const char *vimruntime_env = os_getenv("VIMRUNTIME");
|
||
if (vimruntime_env == NULL) {
|
||
EMSG(_("E5009: $VIMRUNTIME is empty or unset"));
|
||
} else {
|
||
bool rtp_ok = NULL != strstr((char *)p_rtp, vimruntime_env);
|
||
if (rtp_ok) {
|
||
EMSG2(_("E5009: Invalid $VIMRUNTIME: %s"), vimruntime_env);
|
||
} else {
|
||
EMSG(_("E5009: Invalid 'runtimepath'"));
|
||
}
|
||
}
|
||
return;
|
||
}
|
||
|
||
size_t bufsize = STRLEN(eap->arg) + sizeof("call health#check('')");
|
||
char *buf = xmalloc(bufsize);
|
||
snprintf(buf, bufsize, "call health#check('%s')", eap->arg);
|
||
|
||
do_cmdline_cmd(buf);
|
||
|
||
xfree(buf);
|
||
}
|
||
|
||
void invoke_prompt_callback(void)
|
||
{
|
||
typval_T rettv;
|
||
typval_T argv[2];
|
||
char_u *text;
|
||
char_u *prompt;
|
||
linenr_T lnum = curbuf->b_ml.ml_line_count;
|
||
|
||
// Add a new line for the prompt before invoking the callback, so that
|
||
// text can always be inserted above the last line.
|
||
ml_append(lnum, (char_u *)"", 0, false);
|
||
curwin->w_cursor.lnum = lnum + 1;
|
||
curwin->w_cursor.col = 0;
|
||
|
||
if (curbuf->b_prompt_callback.type == kCallbackNone) {
|
||
return;
|
||
}
|
||
text = ml_get(lnum);
|
||
prompt = prompt_text();
|
||
if (STRLEN(text) >= STRLEN(prompt)) {
|
||
text += STRLEN(prompt);
|
||
}
|
||
argv[0].v_type = VAR_STRING;
|
||
argv[0].vval.v_string = vim_strsave(text);
|
||
argv[1].v_type = VAR_UNKNOWN;
|
||
|
||
callback_call(&curbuf->b_prompt_callback, 1, argv, &rettv);
|
||
tv_clear(&argv[0]);
|
||
tv_clear(&rettv);
|
||
}
|
||
|
||
// Return true When the interrupt callback was invoked.
|
||
bool invoke_prompt_interrupt(void)
|
||
{
|
||
typval_T rettv;
|
||
typval_T argv[1];
|
||
|
||
if (curbuf->b_prompt_interrupt.type == kCallbackNone) {
|
||
return false;
|
||
}
|
||
argv[0].v_type = VAR_UNKNOWN;
|
||
|
||
got_int = false; // don't skip executing commands
|
||
callback_call(&curbuf->b_prompt_interrupt, 0, argv, &rettv);
|
||
tv_clear(&rettv);
|
||
return true;
|
||
}
|