neovim/src/nvim/edit.c

9007 lines
262 KiB
C

// This is an open source non-commercial project. Dear PVS-Studio, please check
// it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
/*
* edit.c: functions for Insert mode
*/
#include <assert.h>
#include <string.h>
#include <inttypes.h>
#include <stdbool.h>
#include "nvim/vim.h"
#include "nvim/ascii.h"
#include "nvim/edit.h"
#include "nvim/buffer.h"
#include "nvim/change.h"
#include "nvim/charset.h"
#include "nvim/cursor.h"
#include "nvim/digraph.h"
#include "nvim/eval.h"
#include "nvim/eval/typval.h"
#include "nvim/ex_docmd.h"
#include "nvim/ex_getln.h"
#include "nvim/fileio.h"
#include "nvim/fold.h"
#include "nvim/getchar.h"
#include "nvim/indent.h"
#include "nvim/indent_c.h"
#include "nvim/main.h"
#include "nvim/mark_extended.h"
#include "nvim/mbyte.h"
#include "nvim/memline.h"
#include "nvim/memory.h"
#include "nvim/message.h"
#include "nvim/misc1.h"
#include "nvim/keymap.h"
#include "nvim/move.h"
#include "nvim/normal.h"
#include "nvim/ops.h"
#include "nvim/option.h"
#include "nvim/path.h"
#include "nvim/popupmnu.h"
#include "nvim/quickfix.h"
#include "nvim/regexp.h"
#include "nvim/screen.h"
#include "nvim/search.h"
#include "nvim/spell.h"
#include "nvim/strings.h"
#include "nvim/state.h"
#include "nvim/syntax.h"
#include "nvim/tag.h"
#include "nvim/ui.h"
#include "nvim/mouse.h"
#include "nvim/terminal.h"
#include "nvim/undo.h"
#include "nvim/window.h"
#include "nvim/event/loop.h"
#include "nvim/mark.h"
#include "nvim/os/input.h"
#include "nvim/os/time.h"
// Definitions used for CTRL-X submode.
// Note: If you change CTRL-X submode, you must also maintain ctrl_x_msgs[]
// and ctrl_x_mode_names[].
#define CTRL_X_WANT_IDENT 0x100
#define CTRL_X_NORMAL 0 ///< CTRL-N CTRL-P completion, default
#define CTRL_X_NOT_DEFINED_YET 1
#define CTRL_X_SCROLL 2
#define CTRL_X_WHOLE_LINE 3
#define CTRL_X_FILES 4
#define CTRL_X_TAGS (5 + CTRL_X_WANT_IDENT)
#define CTRL_X_PATH_PATTERNS (6 + CTRL_X_WANT_IDENT)
#define CTRL_X_PATH_DEFINES (7 + CTRL_X_WANT_IDENT)
#define CTRL_X_FINISHED 8
#define CTRL_X_DICTIONARY (9 + CTRL_X_WANT_IDENT)
#define CTRL_X_THESAURUS (10 + CTRL_X_WANT_IDENT)
#define CTRL_X_CMDLINE 11
#define CTRL_X_FUNCTION 12
#define CTRL_X_OMNI 13
#define CTRL_X_SPELL 14
#define CTRL_X_LOCAL_MSG 15 ///< only used in "ctrl_x_msgs"
#define CTRL_X_EVAL 16 ///< for builtin function complete()
#define CTRL_X_MSG(i) ctrl_x_msgs[(i) & ~CTRL_X_WANT_IDENT]
#define CTRL_X_MODE_LINE_OR_EVAL(m) \
((m) == CTRL_X_WHOLE_LINE || (m) == CTRL_X_EVAL)
// Message for CTRL-X mode, index is ctrl_x_mode.
static char *ctrl_x_msgs[] =
{
N_(" Keyword completion (^N^P)"), // CTRL_X_NORMAL, ^P/^N compl.
N_(" ^X mode (^]^D^E^F^I^K^L^N^O^Ps^U^V^Y)"),
NULL, // CTRL_X_SCROLL: depends on state
N_(" Whole line completion (^L^N^P)"),
N_(" File name completion (^F^N^P)"),
N_(" Tag completion (^]^N^P)"),
N_(" Path pattern completion (^N^P)"),
N_(" Definition completion (^D^N^P)"),
NULL, // CTRL_X_FINISHED
N_(" Dictionary completion (^K^N^P)"),
N_(" Thesaurus completion (^T^N^P)"),
N_(" Command-line completion (^V^N^P)"),
N_(" User defined completion (^U^N^P)"),
N_(" Omni completion (^O^N^P)"),
N_(" Spelling suggestion (s^N^P)"),
N_(" Keyword Local completion (^N^P)"),
NULL, // CTRL_X_EVAL doesn't use msg.
};
static char *ctrl_x_mode_names[] = {
"keyword",
"ctrl_x",
"unknown", // CTRL_X_SCROLL
"whole_line",
"files",
"tags",
"path_patterns",
"path_defines",
"unknown", // CTRL_X_FINISHED
"dictionary",
"thesaurus",
"cmdline",
"function",
"omni",
"spell",
NULL, // CTRL_X_LOCAL_MSG only used in "ctrl_x_msgs"
"eval"
};
static char e_hitend[] = N_("Hit end of paragraph");
static char e_complwin[] = N_("E839: Completion function changed window");
static char e_compldel[] = N_("E840: Completion function deleted text");
/*
* Structure used to store one match for insert completion.
*/
typedef struct compl_S compl_T;
struct compl_S {
compl_T *cp_next;
compl_T *cp_prev;
char_u *cp_str; // matched text
char_u *(cp_text[CPT_COUNT]); // text for the menu
char_u *cp_fname; // file containing the match, allocated when
// cp_flags has CP_FREE_FNAME
int cp_flags; // CP_ values
int cp_number; // sequence number
};
/*
* All the current matches are stored in a list.
* "compl_first_match" points to the start of the list.
* "compl_curr_match" points to the currently selected entry.
* "compl_shown_match" is different from compl_curr_match during
* ins_compl_get_exp().
*/
static compl_T *compl_first_match = NULL;
static compl_T *compl_curr_match = NULL;
static compl_T *compl_shown_match = NULL;
static compl_T *compl_old_match = NULL;
/* After using a cursor key <Enter> selects a match in the popup menu,
* otherwise it inserts a line break. */
static int compl_enter_selects = FALSE;
/* When "compl_leader" is not NULL only matches that start with this string
* are used. */
static char_u *compl_leader = NULL;
static int compl_get_longest = FALSE; /* put longest common string
in compl_leader */
static int compl_no_insert = FALSE; /* FALSE: select & insert
TRUE: noinsert */
static int compl_no_select = FALSE; /* FALSE: select & insert
TRUE: noselect */
static bool compl_used_match; // Selected one of the matches.
// When false the match was edited or using
// the longest common string.
static int compl_was_interrupted = FALSE; /* didn't finish finding
completions. */
static int compl_restarting = FALSE; /* don't insert match */
// When the first completion is done "compl_started" is set. When it's
// false the word to be completed must be located.
static bool compl_started = false;
// Which Ctrl-X mode are we in?
static int ctrl_x_mode = CTRL_X_NORMAL;
static int compl_matches = 0;
static char_u *compl_pattern = NULL;
static int compl_direction = FORWARD;
static int compl_shows_dir = FORWARD;
static int compl_pending = 0; /* > 1 for postponed CTRL-N */
static pos_T compl_startpos;
static colnr_T compl_col = 0; /* column where the text starts
* that is being completed */
static char_u *compl_orig_text = NULL; /* text as it was before
* completion started */
static int compl_cont_mode = 0;
static expand_T compl_xp;
static int compl_opt_refresh_always = FALSE;
static int pum_selected_item = -1;
/// state for pum_ext_select_item.
struct {
bool active;
int item;
bool insert;
bool finish;
} pum_want;
typedef struct insert_state {
VimState state;
cmdarg_T *ca;
int mincol;
int cmdchar;
int startln;
long count;
int c;
int lastc;
int i;
bool did_backspace; // previous char was backspace
bool line_is_white; // line is empty before insert
linenr_T old_topline; // topline before insertion
int old_topfill;
int inserted_space; // just inserted a space
int replaceState;
int did_restart_edit; // remember if insert mode was restarted
// after a ctrl+o
bool nomove;
char_u *ptr;
} InsertState;
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "edit.c.generated.h"
#endif
#define BACKSPACE_CHAR 1
#define BACKSPACE_WORD 2
#define BACKSPACE_WORD_NOT_SPACE 3
#define BACKSPACE_LINE 4
static size_t spell_bad_len = 0; /* length of located bad word */
static colnr_T Insstart_textlen; /* length of line when insert started */
static colnr_T Insstart_blank_vcol; /* vcol for first inserted blank */
static bool update_Insstart_orig = true; /* set Insstart_orig to Insstart */
static char_u *last_insert = NULL; /* the text of the previous insert,
K_SPECIAL and CSI are escaped */
static int last_insert_skip; /* nr of chars in front of previous insert */
static int new_insert_skip; /* nr of chars in front of current insert */
static int did_restart_edit; /* "restart_edit" when calling edit() */
static bool can_cindent; // may do cindenting on this line
static int old_indent = 0; /* for ^^D command in insert mode */
static int revins_on; /* reverse insert mode on */
static int revins_chars; /* how much to skip after edit */
static int revins_legal; /* was the last char 'legal'? */
static int revins_scol; /* start column of revins session */
static int ins_need_undo; /* call u_save() before inserting a
char. Set when edit() is called.
after that arrow_used is used. */
static bool did_add_space = false; // auto_format() added an extra space
// under the cursor
static TriState dont_sync_undo = kFalse; // CTRL-G U prevents syncing undo
// for the next left/right cursor key
static linenr_T o_lnum = 0;
static void insert_enter(InsertState *s)
{
s->did_backspace = true;
s->old_topfill = -1;
s->replaceState = REPLACE;
// Remember whether editing was restarted after CTRL-O
did_restart_edit = restart_edit;
// sleep before redrawing, needed for "CTRL-O :" that results in an
// error message
check_for_delay(true);
// set Insstart_orig to Insstart
update_Insstart_orig = true;
ins_compl_clear(); // clear stuff for CTRL-X mode
// Trigger InsertEnter autocommands. Do not do this for "r<CR>" or "grx".
if (s->cmdchar != 'r' && s->cmdchar != 'v') {
pos_T save_cursor = curwin->w_cursor;
if (s->cmdchar == 'R') {
s->ptr = (char_u *)"r";
} else if (s->cmdchar == 'V') {
s->ptr = (char_u *)"v";
} else {
s->ptr = (char_u *)"i";
}
set_vim_var_string(VV_INSERTMODE, (char *) s->ptr, 1);
set_vim_var_string(VV_CHAR, NULL, -1);
ins_apply_autocmds(EVENT_INSERTENTER);
// Make sure the cursor didn't move. Do call check_cursor_col() in
// case the text was modified. Since Insert mode was not started yet
// a call to check_cursor_col() may move the cursor, especially with
// the "A" command, thus set State to avoid that. Also check that the
// line number is still valid (lines may have been deleted).
// Do not restore if v:char was set to a non-empty string.
if (!equalpos(curwin->w_cursor, save_cursor)
&& *get_vim_var_str(VV_CHAR) == NUL
&& save_cursor.lnum <= curbuf->b_ml.ml_line_count) {
int save_state = State;
curwin->w_cursor = save_cursor;
State = INSERT;
check_cursor_col();
State = save_state;
}
}
// When doing a paste with the middle mouse button, Insstart is set to
// where the paste started.
if (where_paste_started.lnum != 0) {
Insstart = where_paste_started;
} else {
Insstart = curwin->w_cursor;
if (s->startln) {
Insstart.col = 0;
}
}
Insstart_textlen = (colnr_T)linetabsize(get_cursor_line_ptr());
Insstart_blank_vcol = MAXCOL;
if (!did_ai) {
ai_col = 0;
}
if (s->cmdchar != NUL && restart_edit == 0) {
ResetRedobuff();
AppendNumberToRedobuff(s->count);
if (s->cmdchar == 'V' || s->cmdchar == 'v') {
// "gR" or "gr" command
AppendCharToRedobuff('g');
AppendCharToRedobuff((s->cmdchar == 'v') ? 'r' : 'R');
} else {
AppendCharToRedobuff(s->cmdchar);
if (s->cmdchar == 'g') { // "gI" command
AppendCharToRedobuff('I');
} else if (s->cmdchar == 'r') { // "r<CR>" command
s->count = 1; // insert only one <CR>
}
}
}
if (s->cmdchar == 'R') {
State = REPLACE;
} else if (s->cmdchar == 'V' || s->cmdchar == 'v') {
State = VREPLACE;
s->replaceState = VREPLACE;
orig_line_count = curbuf->b_ml.ml_line_count;
vr_lines_changed = 1;
} else {
State = INSERT;
}
stop_insert_mode = false;
// Need to recompute the cursor position, it might move when the cursor is
// on a TAB or special character.
curs_columns(true);
// Enable langmap or IME, indicated by 'iminsert'.
// Note that IME may enabled/disabled without us noticing here, thus the
// 'iminsert' value may not reflect what is actually used. It is updated
// when hitting <Esc>.
if (curbuf->b_p_iminsert == B_IMODE_LMAP) {
State |= LANGMAP;
}
setmouse();
clear_showcmd();
// there is no reverse replace mode
revins_on = (State == INSERT && p_ri);
if (revins_on) {
undisplay_dollar();
}
revins_chars = 0;
revins_legal = 0;
revins_scol = -1;
// Handle restarting Insert mode.
// Don't do this for "CTRL-O ." (repeat an insert): we get here with
// restart_edit non-zero, and something in the stuff buffer.
if (restart_edit != 0 && stuff_empty()) {
// After a paste we consider text typed to be part of the insert for
// the pasted text. You can backspace over the pasted text too.
if (where_paste_started.lnum) {
arrow_used = false;
} else {
arrow_used = true;
}
restart_edit = 0;
// If the cursor was after the end-of-line before the CTRL-O and it is
// now at the end-of-line, put it after the end-of-line (this is not
// correct in very rare cases).
// Also do this if curswant is greater than the current virtual
// column. Eg after "^O$" or "^O80|".
validate_virtcol();
update_curswant();
if (((ins_at_eol && curwin->w_cursor.lnum == o_lnum)
|| curwin->w_curswant > curwin->w_virtcol)
&& *(s->ptr = get_cursor_line_ptr() + curwin->w_cursor.col) != NUL) {
if (s->ptr[1] == NUL) {
++curwin->w_cursor.col;
} else if (has_mbyte) {
s->i = (*mb_ptr2len)(s->ptr);
if (s->ptr[s->i] == NUL) {
curwin->w_cursor.col += s->i;
}
}
}
ins_at_eol = false;
} else {
arrow_used = false;
}
// we are in insert mode now, don't need to start it anymore
need_start_insertmode = false;
// Need to save the line for undo before inserting the first char.
ins_need_undo = true;
where_paste_started.lnum = 0;
can_cindent = true;
// The cursor line is not in a closed fold, unless 'insertmode' is set or
// restarting.
if (!p_im && did_restart_edit == 0) {
foldOpenCursor();
}
// If 'showmode' is set, show the current (insert/replace/..) mode.
// A warning message for changing a readonly file is given here, before
// actually changing anything. It's put after the mode, if any.
s->i = 0;
if (p_smd && msg_silent == 0) {
s->i = showmode();
}
if (!p_im && did_restart_edit == 0) {
change_warning(s->i == 0 ? 0 : s->i + 1);
}
ui_cursor_shape(); /* may show different cursor shape */
do_digraph(-1); /* clear digraphs */
// Get the current length of the redo buffer, those characters have to be
// skipped if we want to get to the inserted characters.
s->ptr = get_inserted();
if (s->ptr == NULL) {
new_insert_skip = 0;
} else {
new_insert_skip = (int)STRLEN(s->ptr);
xfree(s->ptr);
}
old_indent = 0;
do {
state_enter(&s->state);
// If s->count != 0, `ins_esc` will prepare the redo buffer for reprocessing
// and return false, causing `state_enter` to be called again.
} while (!ins_esc(&s->count, s->cmdchar, s->nomove));
// Always update o_lnum, so that a "CTRL-O ." that adds a line
// still puts the cursor back after the inserted text.
if (ins_at_eol) {
o_lnum = curwin->w_cursor.lnum;
}
pum_check_clear();
foldUpdateAfterInsert();
// When CTRL-C was typed got_int will be set, with the result
// that the autocommands won't be executed. When mapped got_int
// is not set, but let's keep the behavior the same.
if (s->cmdchar != 'r' && s->cmdchar != 'v' && s->c != Ctrl_C) {
ins_apply_autocmds(EVENT_INSERTLEAVE);
}
did_cursorhold = false;
}
static int insert_check(VimState *state)
{
InsertState *s = (InsertState *)state;
// If typed something may trigger CursorHoldI again.
if (s->c != K_EVENT
// but not in CTRL-X mode, a script can't restore the state
&& ctrl_x_mode == CTRL_X_NORMAL) {
did_cursorhold = false;
}
// If the cursor was moved we didn't just insert a space */
if (arrow_used) {
s->inserted_space = false;
}
if (can_cindent
&& cindent_on()
&& ctrl_x_mode == CTRL_X_NORMAL
&& !compl_started) {
insert_do_cindent(s);
}
if (!revins_legal) {
revins_scol = -1; // reset on illegal motions
} else {
revins_legal = 0;
}
if (arrow_used) { // don't repeat insert when arrow key used
s->count = 0;
}
if (update_Insstart_orig) {
Insstart_orig = Insstart;
}
if (stop_insert_mode && !pum_visible()) {
// ":stopinsert" used or 'insertmode' reset
s->count = 0;
return 0; // exit insert mode
}
// set curwin->w_curswant for next K_DOWN or K_UP
if (!arrow_used) {
curwin->w_set_curswant = true;
}
// If there is no typeahead may check for timestamps (e.g., for when a
// menu invoked a shell command).
if (stuff_empty()) {
did_check_timestamps = false;
if (need_check_timestamps) {
check_timestamps(false);
}
}
// When emsg() was called msg_scroll will have been set.
msg_scroll = false;
// Open fold at the cursor line, according to 'foldopen'.
if (fdo_flags & FDO_INSERT) {
foldOpenCursor();
}
// Close folds where the cursor isn't, according to 'foldclose'
if (!char_avail()) {
foldCheckClose();
}
// If we inserted a character at the last position of the last line in the
// window, scroll the window one line up. This avoids an extra redraw. This
// is detected when the cursor column is smaller after inserting something.
// Don't do this when the topline changed already, it has already been
// adjusted (by insertchar() calling open_line())).
if (curbuf->b_mod_set
&& curwin->w_p_wrap
&& !s->did_backspace
&& curwin->w_topline == s->old_topline
&& curwin->w_topfill == s->old_topfill) {
s->mincol = curwin->w_wcol;
validate_cursor_col();
if (curwin->w_wcol < s->mincol - curbuf->b_p_ts
&& curwin->w_wrow == curwin->w_winrow
+ curwin->w_height_inner - 1 - p_so
&& (curwin->w_cursor.lnum != curwin->w_topline
|| curwin->w_topfill > 0)) {
if (curwin->w_topfill > 0) {
--curwin->w_topfill;
} else if (hasFolding(curwin->w_topline, NULL, &s->old_topline)) {
set_topline(curwin, s->old_topline + 1);
} else {
set_topline(curwin, curwin->w_topline + 1);
}
}
}
// May need to adjust w_topline to show the cursor.
update_topline();
s->did_backspace = false;
validate_cursor(); // may set must_redraw
// Redraw the display when no characters are waiting.
// Also shows mode, ruler and positions cursor.
ins_redraw(true);
if (curwin->w_p_scb) {
do_check_scrollbind(true);
}
if (curwin->w_p_crb) {
do_check_cursorbind();
}
update_curswant();
s->old_topline = curwin->w_topline;
s->old_topfill = curwin->w_topfill;
s->lastc = s->c; // remember previous char for CTRL-D
// After using CTRL-G U the next cursor key will not break undo.
if (dont_sync_undo == kNone) {
dont_sync_undo = kTrue;
} else {
dont_sync_undo = kFalse;
}
return 1;
}
static int insert_execute(VimState *state, int key)
{
if (key == K_IGNORE || key == K_NOP) {
return -1; // get another key
}
InsertState *s = (InsertState *)state;
s->c = key;
// Don't want K_EVENT with cursorhold for the second key, e.g., after CTRL-V.
if (key != K_EVENT) {
did_cursorhold = true;
}
if (p_hkmap && KeyTyped) {
s->c = hkmap(s->c); // Hebrew mode mapping
}
// Special handling of keys while the popup menu is visible or wanted
// and the cursor is still in the completed word. Only when there is
// a match, skip this when no matches were found.
if (compl_started
&& pum_wanted()
&& curwin->w_cursor.col >= compl_col
&& (compl_shown_match == NULL
|| compl_shown_match != compl_shown_match->cp_next)) {
// BS: Delete one character from "compl_leader".
if ((s->c == K_BS || s->c == Ctrl_H)
&& curwin->w_cursor.col > compl_col
&& (s->c = ins_compl_bs()) == NUL) {
return 1; // continue
}
// When no match was selected or it was edited.
if (!compl_used_match) {
// CTRL-L: Add one character from the current match to
// "compl_leader". Except when at the original match and
// there is nothing to add, CTRL-L works like CTRL-P then.
if (s->c == Ctrl_L
&& (!CTRL_X_MODE_LINE_OR_EVAL(ctrl_x_mode)
|| (compl_shown_match != NULL
&& compl_shown_match->cp_str != NULL
&& (int)STRLEN(compl_shown_match->cp_str)
> curwin->w_cursor.col - compl_col))) {
ins_compl_addfrommatch();
return 1; // continue
}
// A non-white character that fits in with the current
// completion: Add to "compl_leader".
if (ins_compl_accept_char(s->c)) {
// Trigger InsertCharPre.
char_u *str = do_insert_char_pre(s->c);
char_u *p;
if (str != NULL) {
for (p = str; *p != NUL; MB_PTR_ADV(p)) {
ins_compl_addleader(PTR2CHAR(p));
}
xfree(str);
} else {
ins_compl_addleader(s->c);
}
return 1; // continue
}
// Pressing CTRL-Y selects the current match. When
// compl_enter_selects is set the Enter key does the same.
if ((s->c == Ctrl_Y
|| (compl_enter_selects
&& (s->c == CAR || s->c == K_KENTER || s->c == NL)))
&& stop_arrow() == OK) {
ins_compl_delete();
ins_compl_insert(false);
}
}
}
// Prepare for or stop CTRL-X mode. This doesn't do completion, but it does
// fix up the text when finishing completion.
compl_get_longest = false;
if (ins_compl_prep(s->c)) {
return 1; // continue
}
// CTRL-\ CTRL-N goes to Normal mode,
// CTRL-\ CTRL-G goes to mode selected with 'insertmode',
// CTRL-\ CTRL-O is like CTRL-O but without moving the cursor
if (s->c == Ctrl_BSL) {
// may need to redraw when no more chars available now
ins_redraw(false);
no_mapping++;
s->c = plain_vgetc();
no_mapping--;
if (s->c != Ctrl_N && s->c != Ctrl_G && s->c != Ctrl_O) {
// it's something else
vungetc(s->c);
s->c = Ctrl_BSL;
} else if (s->c == Ctrl_G && p_im) {
return 1; // continue
} else {
if (s->c == Ctrl_O) {
ins_ctrl_o();
ins_at_eol = false; // cursor keeps its column
s->nomove = true;
}
s->count = 0;
return 0;
}
}
s->c = do_digraph(s->c);
if ((s->c == Ctrl_V || s->c == Ctrl_Q) && ctrl_x_mode == CTRL_X_CMDLINE) {
insert_do_complete(s);
return 1;
}
if (s->c == Ctrl_V || s->c == Ctrl_Q) {
ins_ctrl_v();
s->c = Ctrl_V; // pretend CTRL-V is last typed character
return 1; // continue
}
if (cindent_on()
&& ctrl_x_mode == 0) {
// A key name preceded by a bang means this key is not to be
// inserted. Skip ahead to the re-indenting below.
// A key name preceded by a star means that indenting has to be
// done before inserting the key.
s->line_is_white = inindent(0);
if (in_cinkeys(s->c, '!', s->line_is_white)) {
insert_do_cindent(s);
return 1; // continue
}
if (can_cindent && in_cinkeys(s->c, '*', s->line_is_white)
&& stop_arrow() == OK) {
do_c_expr_indent();
}
}
if (curwin->w_p_rl)
switch (s->c) {
case K_LEFT: s->c = K_RIGHT; break;
case K_S_LEFT: s->c = K_S_RIGHT; break;
case K_C_LEFT: s->c = K_C_RIGHT; break;
case K_RIGHT: s->c = K_LEFT; break;
case K_S_RIGHT: s->c = K_S_LEFT; break;
case K_C_RIGHT: s->c = K_C_LEFT; break;
}
// If 'keymodel' contains "startsel", may start selection. If it
// does, a CTRL-O and c will be stuffed, we need to get these
// characters.
if (ins_start_select(s->c)) {
return 1; // continue
}
return insert_handle_key(s);
}
static int insert_handle_key(InsertState *s)
{
// The big switch to handle a character in insert mode.
// TODO(tarruda): This could look better if a lookup table is used.
// (similar to normal mode `nv_cmds[]`)
switch (s->c) {
case ESC: // End input mode
if (echeck_abbr(ESC + ABBR_OFF)) {
break;
}
FALLTHROUGH;
case Ctrl_C: // End input mode
if (s->c == Ctrl_C && cmdwin_type != 0) {
// Close the cmdline window. */
cmdwin_result = K_IGNORE;
got_int = false; // don't stop executing autocommands et al
s->nomove = true;
return 0; // exit insert mode
}
// when 'insertmode' set, and not halfway through a mapping, don't leave
// Insert mode
if (goto_im()) {
if (got_int) {
(void)vgetc(); // flush all buffers
got_int = false;
} else {
vim_beep(BO_IM);
}
break;
}
return 0; // exit insert mode
case Ctrl_Z: // suspend when 'insertmode' set
if (!p_im) {
goto normalchar; // insert CTRL-Z as normal char
}
do_cmdline_cmd("stop");
ui_cursor_shape(); // may need to update cursor shape
break;
case Ctrl_O: // execute one command
if (ctrl_x_mode == CTRL_X_OMNI) {
insert_do_complete(s);
break;
}
if (echeck_abbr(Ctrl_O + ABBR_OFF)) {
break;
}
ins_ctrl_o();
// don't move the cursor left when 'virtualedit' has "onemore".
if (ve_flags & VE_ONEMORE) {
ins_at_eol = false;
s->nomove = true;
}
s->count = 0;
return 0; // exit insert mode
case K_INS: // toggle insert/replace mode
case K_KINS:
ins_insert(s->replaceState);
break;
case K_SELECT: // end of Select mode mapping - ignore
break;
case K_HELP: // Help key works like <ESC> <Help>
case K_F1:
case K_XF1:
stuffcharReadbuff(K_HELP);
if (p_im) {
need_start_insertmode = true;
}
return 0; // exit insert mode
case ' ':
if (mod_mask != MOD_MASK_CTRL) {
goto normalchar;
}
FALLTHROUGH;
case K_ZERO: // Insert the previously inserted text.
case NUL:
case Ctrl_A:
// For ^@ the trailing ESC will end the insert, unless there is an
// error.
if (stuff_inserted(NUL, 1L, (s->c == Ctrl_A)) == FAIL
&& s->c != Ctrl_A && !p_im) {
return 0; // exit insert mode
}
s->inserted_space = false;
break;
case Ctrl_R: // insert the contents of a register
ins_reg();
auto_format(false, true);
s->inserted_space = false;
break;
case Ctrl_G: // commands starting with CTRL-G
ins_ctrl_g();
break;
case Ctrl_HAT: // switch input mode and/or langmap
ins_ctrl_hat();
break;
case Ctrl__: // switch between languages
if (!p_ari) {
goto normalchar;
}
ins_ctrl_();
break;
case Ctrl_D: // Make indent one shiftwidth smaller.
if (ctrl_x_mode == CTRL_X_PATH_DEFINES) {
insert_do_complete(s);
break;
}
FALLTHROUGH;
case Ctrl_T: // Make indent one shiftwidth greater.
if (s->c == Ctrl_T && ctrl_x_mode == CTRL_X_THESAURUS) {
if (check_compl_option(false)) {
insert_do_complete(s);
}
break;
}
ins_shift(s->c, s->lastc);
auto_format(false, true);
s->inserted_space = false;
break;
case K_DEL: // delete character under the cursor
case K_KDEL:
ins_del();
auto_format(false, true);
break;
case K_BS: // delete character before the cursor
case Ctrl_H:
s->did_backspace = ins_bs(s->c, BACKSPACE_CHAR, &s->inserted_space);
auto_format(false, true);
break;
case Ctrl_W: // delete word before the cursor
s->did_backspace = ins_bs(s->c, BACKSPACE_WORD, &s->inserted_space);
auto_format(false, true);
break;
case Ctrl_U: // delete all inserted text in current line
// CTRL-X CTRL-U completes with 'completefunc'.
if (ctrl_x_mode == CTRL_X_FUNCTION) {
insert_do_complete(s);
} else {
s->did_backspace = ins_bs(s->c, BACKSPACE_LINE, &s->inserted_space);
auto_format(false, true);
s->inserted_space = false;
}
break;
case K_LEFTMOUSE: // mouse keys
case K_LEFTMOUSE_NM:
case K_LEFTDRAG:
case K_LEFTRELEASE:
case K_LEFTRELEASE_NM:
case K_MIDDLEMOUSE:
case K_MIDDLEDRAG:
case K_MIDDLERELEASE:
case K_RIGHTMOUSE:
case K_RIGHTDRAG:
case K_RIGHTRELEASE:
case K_X1MOUSE:
case K_X1DRAG:
case K_X1RELEASE:
case K_X2MOUSE:
case K_X2DRAG:
case K_X2RELEASE:
ins_mouse(s->c);
break;
case K_MOUSEDOWN: // Default action for scroll wheel up: scroll up
ins_mousescroll(MSCR_DOWN);
break;
case K_MOUSEUP: // Default action for scroll wheel down: scroll down
ins_mousescroll(MSCR_UP);
break;
case K_MOUSELEFT: // Scroll wheel left
ins_mousescroll(MSCR_LEFT);
break;
case K_MOUSERIGHT: // Scroll wheel right
ins_mousescroll(MSCR_RIGHT);
break;
case K_IGNORE: // Something mapped to nothing
break;
case K_EVENT: // some event
multiqueue_process_events(main_loop.events);
goto check_pum;
case K_COMMAND: // some command
do_cmdline(NULL, getcmdkeycmd, NULL, 0);
check_pum:
// TODO(bfredl): Not entirely sure this indirection is necessary
// but doing like this ensures using nvim_select_popupmenu_item is
// equivalent to selecting the item with a typed key.
if (pum_want.active) {
if (pum_visible()) {
insert_do_complete(s);
if (pum_want.finish) {
// accept the item and stop completion
ins_compl_prep(Ctrl_Y);
}
}
pum_want.active = false;
}
break;
case K_HOME: // <Home>
case K_KHOME:
case K_S_HOME:
case K_C_HOME:
ins_home(s->c);
break;
case K_END: // <End>
case K_KEND:
case K_S_END:
case K_C_END:
ins_end(s->c);
break;
case K_LEFT: // <Left>
if (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_CTRL)) {
ins_s_left();
} else {
ins_left();
}
break;
case K_S_LEFT: // <S-Left>
case K_C_LEFT:
ins_s_left();
break;
case K_RIGHT: // <Right>
if (mod_mask & (MOD_MASK_SHIFT|MOD_MASK_CTRL)) {
ins_s_right();
} else {
ins_right();
}
break;
case K_S_RIGHT: // <S-Right>
case K_C_RIGHT:
ins_s_right();
break;
case K_UP: // <Up>
if (pum_visible()) {
insert_do_complete(s);
} else if (mod_mask & MOD_MASK_SHIFT) {
ins_pageup();
} else {
ins_up(false);
}
break;
case K_S_UP: // <S-Up>
case K_PAGEUP:
case K_KPAGEUP:
if (pum_visible()) {
insert_do_complete(s);
} else {
ins_pageup();
}
break;
case K_DOWN: // <Down>
if (pum_visible()) {
insert_do_complete(s);
} else if (mod_mask & MOD_MASK_SHIFT) {
ins_pagedown();
} else {
ins_down(false);
}
break;
case K_S_DOWN: // <S-Down>
case K_PAGEDOWN:
case K_KPAGEDOWN:
if (pum_visible()) {
insert_do_complete(s);
} else {
ins_pagedown();
}
break;
case K_S_TAB: // When not mapped, use like a normal TAB
s->c = TAB;
FALLTHROUGH;
case TAB: // TAB or Complete patterns along path
if (ctrl_x_mode == CTRL_X_PATH_PATTERNS) {
insert_do_complete(s);
break;
}
s->inserted_space = false;
if (ins_tab()) {
goto normalchar; // insert TAB as a normal char
}
auto_format(false, true);
break;
case K_KENTER: // <Enter>
s->c = CAR;
FALLTHROUGH;
case CAR:
case NL:
// In a quickfix window a <CR> jumps to the error under the
// cursor.
if (bt_quickfix(curbuf) && s->c == CAR) {
if (curwin->w_llist_ref == NULL) { // quickfix window
do_cmdline_cmd(".cc");
} else { // location list window
do_cmdline_cmd(".ll");
}
break;
}
if (cmdwin_type != 0) {
// Execute the command in the cmdline window.
cmdwin_result = CAR;
return 0;
}
if (!ins_eol(s->c) && !p_im) {
return 0; // out of memory
}
auto_format(false, false);
s->inserted_space = false;
break;
case Ctrl_K: // digraph or keyword completion
if (ctrl_x_mode == CTRL_X_DICTIONARY) {
if (check_compl_option(true)) {
insert_do_complete(s);
}
break;
}
s->c = ins_digraph();
if (s->c == NUL) {
break;
}
goto normalchar;
case Ctrl_X: // Enter CTRL-X mode
ins_ctrl_x();
break;
case Ctrl_RSB: // Tag name completion after ^X
if (ctrl_x_mode != CTRL_X_TAGS) {
goto normalchar;
} else {
insert_do_complete(s);
}
break;
case Ctrl_F: // File name completion after ^X
if (ctrl_x_mode != CTRL_X_FILES) {
goto normalchar;
} else {
insert_do_complete(s);
}
break;
case 's': // Spelling completion after ^X
case Ctrl_S:
if (ctrl_x_mode != CTRL_X_SPELL) {
goto normalchar;
} else {
insert_do_complete(s);
}
break;
case Ctrl_L: // Whole line completion after ^X
if (ctrl_x_mode != CTRL_X_WHOLE_LINE) {
// CTRL-L with 'insertmode' set: Leave Insert mode
if (p_im) {
if (echeck_abbr(Ctrl_L + ABBR_OFF)) {
break;
}
return 0; // exit insert mode
}
goto normalchar;
}
FALLTHROUGH;
case Ctrl_P: // Do previous/next pattern completion
case Ctrl_N:
// if 'complete' is empty then plain ^P is no longer special,
// but it is under other ^X modes
if (*curbuf->b_p_cpt == NUL
&& (ctrl_x_mode == CTRL_X_NORMAL
|| ctrl_x_mode == CTRL_X_WHOLE_LINE)
&& !(compl_cont_status & CONT_LOCAL)) {
goto normalchar;
}
insert_do_complete(s);
break;
case Ctrl_Y: // copy from previous line or scroll down
case Ctrl_E: // copy from next line or scroll up
s->c = ins_ctrl_ey(s->c);
break;
default:
normalchar:
// Insert a normal character.
if (mod_mask == MOD_MASK_ALT || mod_mask == MOD_MASK_META) {
// Unmapped ALT/META chord behaves like ESC+c. #8213
stuffcharReadbuff(ESC);
stuffcharReadbuff(s->c);
u_sync(false);
break;
}
if (!p_paste) {
// Trigger InsertCharPre.
char_u *str = do_insert_char_pre(s->c);
char_u *p;
if (str != NULL) {
if (*str != NUL && stop_arrow() != FAIL) {
// Insert the new value of v:char literally.
for (p = str; *p != NUL; MB_PTR_ADV(p)) {
s->c = PTR2CHAR(p);
if (s->c == CAR || s->c == K_KENTER || s->c == NL) {
ins_eol(s->c);
} else {
ins_char(s->c);
}
}
AppendToRedobuffLit(str, -1);
}
xfree(str);
s->c = NUL;
}
// If the new value is already inserted or an empty string
// then don't insert any character.
if (s->c == NUL)
break;
}
// Try to perform smart-indenting.
ins_try_si(s->c);
if (s->c == ' ') {
s->inserted_space = true;
if (inindent(0)) {
can_cindent = false;
}
if (Insstart_blank_vcol == MAXCOL
&& curwin->w_cursor.lnum == Insstart.lnum) {
Insstart_blank_vcol = get_nolist_virtcol();
}
}
// Insert a normal character and check for abbreviations on a
// special character. Let CTRL-] expand abbreviations without
// inserting it.
if (vim_iswordc(s->c)
|| (!echeck_abbr(
// Add ABBR_OFF for characters above 0x100, this is
// what check_abbr() expects.
(has_mbyte && s->c >= 0x100) ? (s->c + ABBR_OFF) : s->c)
&& s->c != Ctrl_RSB)) {
insert_special(s->c, false, false);
revins_legal++;
revins_chars++;
}
auto_format(false, true);
// When inserting a character the cursor line must never be in a
// closed fold.
foldOpenCursor();
break;
} // end of switch (s->c)
return 1; // continue
}
static void insert_do_complete(InsertState *s)
{
compl_busy = true;
if (ins_complete(s->c, true) == FAIL) {
compl_cont_status = 0;
}
compl_busy = false;
}
static void insert_do_cindent(InsertState *s)
{
// Indent now if a key was typed that is in 'cinkeys'.
if (in_cinkeys(s->c, ' ', s->line_is_white)) {
if (stop_arrow() == OK) {
// re-indent the current line
do_c_expr_indent();
}
}
}
/// edit(): Start inserting text.
///
/// "cmdchar" can be:
/// 'i' normal insert command
/// 'a' normal append command
/// 'R' replace command
/// 'r' "r<CR>" command: insert one <CR>.
/// Note: count can be > 1, for redo, but still only one <CR> is inserted.
/// <Esc> is not used for redo.
/// 'g' "gI" command.
/// 'V' "gR" command for Virtual Replace mode.
/// 'v' "gr" command for single character Virtual Replace mode.
///
/// This function is not called recursively. For CTRL-O commands, it returns
/// and lets the caller handle the Normal-mode command.
///
/// @param cmdchar command that started the insert
/// @param startln if true, insert at start of line
/// @param count repeat count for the command
///
/// @return true if a CTRL-O command caused the return (insert mode pending).
bool edit(int cmdchar, bool startln, long count)
{
if (curbuf->terminal) {
if (ex_normal_busy) {
// Do not enter terminal mode from ex_normal(), which would cause havoc
// (such as terminal-mode recursiveness). Instead set a flag to force-set
// the value of `restart_edit` before `ex_normal` returns.
restart_edit = 'i';
force_restart_edit = true;
} else {
terminal_enter();
}
return false;
}
// Don't allow inserting in the sandbox.
if (sandbox != 0) {
EMSG(_(e_sandbox));
return false;
}
// Don't allow changes in the buffer while editing the cmdline. The
// caller of getcmdline() may get confused.
if (textlock != 0) {
EMSG(_(e_secure));
return false;
}
// Don't allow recursive insert mode when busy with completion.
if (compl_started || compl_busy || pum_visible()) {
EMSG(_(e_secure));
return false;
}
InsertState state, *s = &state;
memset(s, 0, sizeof(InsertState));
s->state.execute = insert_execute;
s->state.check = insert_check;
s->cmdchar = cmdchar;
s->startln = startln;
s->count = count;
insert_enter(s);
return s->c == Ctrl_O;
}
/*
* Redraw for Insert mode.
* This is postponed until getting the next character to make '$' in the 'cpo'
* option work correctly.
* Only redraw when there are no characters available. This speeds up
* inserting sequences of characters (e.g., for CTRL-R).
*/
static void
ins_redraw (
int ready /* not busy with something */
)
{
bool conceal_cursor_moved = false;
if (char_avail())
return;
// Trigger CursorMoved if the cursor moved. Not when the popup menu is
// visible, the command might delete it.
if (ready && (has_event(EVENT_CURSORMOVEDI) || curwin->w_p_cole > 0)
&& !equalpos(curwin->w_last_cursormoved, curwin->w_cursor)
&& !pum_visible()) {
// Need to update the screen first, to make sure syntax
// highlighting is correct after making a change (e.g., inserting
// a "(". The autocommand may also require a redraw, so it's done
// again below, unfortunately.
if (syntax_present(curwin) && must_redraw) {
update_screen(0);
}
if (has_event(EVENT_CURSORMOVEDI)) {
// Make sure curswant is correct, an autocommand may call
// getcurpos()
update_curswant();
ins_apply_autocmds(EVENT_CURSORMOVEDI);
}
conceal_cursor_moved = true;
curwin->w_last_cursormoved = curwin->w_cursor;
}
// Trigger TextChangedI if changedtick differs.
if (ready && has_event(EVENT_TEXTCHANGEDI)
&& curbuf->b_last_changedtick != buf_get_changedtick(curbuf)
&& !pum_visible()) {
aco_save_T aco;
varnumber_T tick = buf_get_changedtick(curbuf);
// save and restore curwin and curbuf, in case the autocmd changes them
aucmd_prepbuf(&aco, curbuf);
apply_autocmds(EVENT_TEXTCHANGEDI, NULL, NULL, false, curbuf);
aucmd_restbuf(&aco);
curbuf->b_last_changedtick = buf_get_changedtick(curbuf);
if (tick != buf_get_changedtick(curbuf)) { // see ins_apply_autocmds()
u_save(curwin->w_cursor.lnum,
(linenr_T)(curwin->w_cursor.lnum + 1));
}
}
// Trigger TextChangedP if changedtick differs. When the popupmenu closes
// TextChangedI will need to trigger for backwards compatibility, thus use
// different b_last_changedtick* variables.
if (ready && has_event(EVENT_TEXTCHANGEDP)
&& curbuf->b_last_changedtick_pum != buf_get_changedtick(curbuf)
&& pum_visible()) {
aco_save_T aco;
varnumber_T tick = buf_get_changedtick(curbuf);
// save and restore curwin and curbuf, in case the autocmd changes them
aucmd_prepbuf(&aco, curbuf);
apply_autocmds(EVENT_TEXTCHANGEDP, NULL, NULL, false, curbuf);
aucmd_restbuf(&aco);
curbuf->b_last_changedtick_pum = buf_get_changedtick(curbuf);
if (tick != buf_get_changedtick(curbuf)) { // see ins_apply_autocmds()
u_save(curwin->w_cursor.lnum,
(linenr_T)(curwin->w_cursor.lnum + 1));
}
}
if (curwin->w_p_cole > 0 && conceal_cursor_line(curwin)
&& conceal_cursor_moved) {
redrawWinline(curwin, curwin->w_cursor.lnum);
}
pum_check_clear();
if (must_redraw) {
update_screen(0);
} else if (clear_cmdline || redraw_cmdline) {
showmode(); // clear cmdline and show mode
}
showruler(false);
setcursor();
emsg_on_display = FALSE; /* may remove error message now */
}
/*
* Handle a CTRL-V or CTRL-Q typed in Insert mode.
*/
static void ins_ctrl_v(void)
{
int c;
int did_putchar = FALSE;
/* may need to redraw when no more chars available now */
ins_redraw(FALSE);
if (redrawing() && !char_avail()) {
edit_putchar('^', TRUE);
did_putchar = TRUE;
}
AppendToRedobuff(CTRL_V_STR);
add_to_showcmd_c(Ctrl_V);
c = get_literal();
if (did_putchar)
/* when the line fits in 'columns' the '^' is at the start of the next
* line and will not removed by the redraw */
edit_unputchar();
clear_showcmd();
insert_special(c, true, true);
revins_chars++;
revins_legal++;
}
/*
* Put a character directly onto the screen. It's not stored in a buffer.
* Used while handling CTRL-K, CTRL-V, etc. in Insert mode.
*/
static int pc_status;
#define PC_STATUS_UNSET 0 /* pc_bytes was not set */
#define PC_STATUS_RIGHT 1 /* right halve of double-wide char */
#define PC_STATUS_LEFT 2 /* left halve of double-wide char */
#define PC_STATUS_SET 3 /* pc_bytes was filled */
static char_u pc_bytes[MB_MAXBYTES + 1]; /* saved bytes */
static int pc_attr;
static int pc_row;
static int pc_col;
void edit_putchar(int c, int highlight)
{
int attr;
if (curwin->w_grid.chars != NULL || default_grid.chars != NULL) {
update_topline(); // just in case w_topline isn't valid
validate_cursor();
if (highlight) {
attr = HL_ATTR(HLF_8);
} else {
attr = 0;
}
pc_row = curwin->w_wrow;
pc_col = 0;
pc_status = PC_STATUS_UNSET;
if (curwin->w_p_rl) {
pc_col += curwin->w_grid.Columns - 1 - curwin->w_wcol;
if (has_mbyte) {
int fix_col = grid_fix_col(&curwin->w_grid, pc_col, pc_row);
if (fix_col != pc_col) {
grid_putchar(&curwin->w_grid, ' ', pc_row, fix_col, attr);
curwin->w_wcol--;
pc_status = PC_STATUS_RIGHT;
}
}
} else {
pc_col += curwin->w_wcol;
if (grid_lefthalve(&curwin->w_grid, pc_row, pc_col)) {
pc_status = PC_STATUS_LEFT;
}
}
/* save the character to be able to put it back */
if (pc_status == PC_STATUS_UNSET) {
grid_getbytes(&curwin->w_grid, pc_row, pc_col, pc_bytes, &pc_attr);
pc_status = PC_STATUS_SET;
}
grid_putchar(&curwin->w_grid, c, pc_row, pc_col, attr);
}
}
/*
* Undo the previous edit_putchar().
*/
void edit_unputchar(void)
{
if (pc_status != PC_STATUS_UNSET && pc_row >= msg_scrolled) {
if (pc_status == PC_STATUS_RIGHT) {
curwin->w_wcol++;
}
if (pc_status == PC_STATUS_RIGHT || pc_status == PC_STATUS_LEFT) {
redrawWinline(curwin, curwin->w_cursor.lnum);
} else {
grid_puts(&curwin->w_grid, pc_bytes, pc_row - msg_scrolled, pc_col,
pc_attr);
}
}
}
/*
* Called when p_dollar is set: display a '$' at the end of the changed text
* Only works when cursor is in the line that changes.
*/
void display_dollar(colnr_T col)
{
colnr_T save_col;
if (!redrawing())
return;
save_col = curwin->w_cursor.col;
curwin->w_cursor.col = col;
// If on the last byte of a multi-byte move to the first byte.
char_u *p = get_cursor_line_ptr();
curwin->w_cursor.col -= utf_head_off(p, p + col);
curs_columns(false); // Recompute w_wrow and w_wcol
if (curwin->w_wcol < curwin->w_grid.Columns) {
edit_putchar('$', false);
dollar_vcol = curwin->w_virtcol;
}
curwin->w_cursor.col = save_col;
}
/*
* Call this function before moving the cursor from the normal insert position
* in insert mode.
*/
static void undisplay_dollar(void)
{
if (dollar_vcol >= 0) {
dollar_vcol = -1;
redrawWinline(curwin, curwin->w_cursor.lnum);
}
}
/*
* Insert an indent (for <Tab> or CTRL-T) or delete an indent (for CTRL-D).
* Keep the cursor on the same character.
* type == INDENT_INC increase indent (for CTRL-T or <Tab>)
* type == INDENT_DEC decrease indent (for CTRL-D)
* type == INDENT_SET set indent to "amount"
* if round is TRUE, round the indent to 'shiftwidth' (only with _INC and _Dec).
*/
void
change_indent (
int type,
int amount,
int round,
int replaced, /* replaced character, put on replace stack */
int call_changed_bytes /* call changed_bytes() */
)
{
int vcol;
int last_vcol;
int insstart_less; /* reduction for Insstart.col */
int new_cursor_col;
int i;
char_u *ptr;
int save_p_list;
int start_col;
colnr_T vc;
colnr_T orig_col = 0; /* init for GCC */
char_u *new_line, *orig_line = NULL; /* init for GCC */
/* VREPLACE mode needs to know what the line was like before changing */
if (State & VREPLACE_FLAG) {
orig_line = vim_strsave(get_cursor_line_ptr()); /* Deal with NULL below */
orig_col = curwin->w_cursor.col;
}
/* for the following tricks we don't want list mode */
save_p_list = curwin->w_p_list;
curwin->w_p_list = FALSE;
vc = getvcol_nolist(&curwin->w_cursor);
vcol = vc;
/*
* For Replace mode we need to fix the replace stack later, which is only
* possible when the cursor is in the indent. Remember the number of
* characters before the cursor if it's possible.
*/
start_col = curwin->w_cursor.col;
/* determine offset from first non-blank */
new_cursor_col = curwin->w_cursor.col;
beginline(BL_WHITE);
new_cursor_col -= curwin->w_cursor.col;
insstart_less = curwin->w_cursor.col;
/*
* If the cursor is in the indent, compute how many screen columns the
* cursor is to the left of the first non-blank.
*/
if (new_cursor_col < 0)
vcol = get_indent() - vcol;
if (new_cursor_col > 0) /* can't fix replace stack */
start_col = -1;
/*
* Set the new indent. The cursor will be put on the first non-blank.
*/
if (type == INDENT_SET)
(void)set_indent(amount, call_changed_bytes ? SIN_CHANGED : 0);
else {
int save_State = State;
/* Avoid being called recursively. */
if (State & VREPLACE_FLAG)
State = INSERT;
shift_line(type == INDENT_DEC, round, 1, call_changed_bytes);
State = save_State;
}
insstart_less -= curwin->w_cursor.col;
/*
* Try to put cursor on same character.
* If the cursor is at or after the first non-blank in the line,
* compute the cursor column relative to the column of the first
* non-blank character.
* If we are not in insert mode, leave the cursor on the first non-blank.
* If the cursor is before the first non-blank, position it relative
* to the first non-blank, counted in screen columns.
*/
if (new_cursor_col >= 0) {
/*
* When changing the indent while the cursor is touching it, reset
* Insstart_col to 0.
*/
if (new_cursor_col == 0)
insstart_less = MAXCOL;
new_cursor_col += curwin->w_cursor.col;
} else if (!(State & INSERT))
new_cursor_col = curwin->w_cursor.col;
else {
/*
* Compute the screen column where the cursor should be.
*/
vcol = get_indent() - vcol;
curwin->w_virtcol = (colnr_T)((vcol < 0) ? 0 : vcol);
/*
* Advance the cursor until we reach the right screen column.
*/
vcol = last_vcol = 0;
new_cursor_col = -1;
ptr = get_cursor_line_ptr();
while (vcol <= (int)curwin->w_virtcol) {
last_vcol = vcol;
if (has_mbyte && new_cursor_col >= 0)
new_cursor_col += (*mb_ptr2len)(ptr + new_cursor_col);
else
++new_cursor_col;
vcol += lbr_chartabsize(ptr, ptr + new_cursor_col, (colnr_T)vcol);
}
vcol = last_vcol;
/*
* May need to insert spaces to be able to position the cursor on
* the right screen column.
*/
if (vcol != (int)curwin->w_virtcol) {
curwin->w_cursor.col = (colnr_T)new_cursor_col;
i = (int)curwin->w_virtcol - vcol;
ptr = xmallocz(i);
memset(ptr, ' ', i);
new_cursor_col += i;
ins_str(ptr);
xfree(ptr);
}
/*
* When changing the indent while the cursor is in it, reset
* Insstart_col to 0.
*/
insstart_less = MAXCOL;
}
curwin->w_p_list = save_p_list;
if (new_cursor_col <= 0)
curwin->w_cursor.col = 0;
else
curwin->w_cursor.col = (colnr_T)new_cursor_col;
curwin->w_set_curswant = TRUE;
changed_cline_bef_curs();
/*
* May have to adjust the start of the insert.
*/
if (State & INSERT) {
if (curwin->w_cursor.lnum == Insstart.lnum && Insstart.col != 0) {
if ((int)Insstart.col <= insstart_less)
Insstart.col = 0;
else
Insstart.col -= insstart_less;
}
if ((int)ai_col <= insstart_less)
ai_col = 0;
else
ai_col -= insstart_less;
}
/*
* For REPLACE mode, may have to fix the replace stack, if it's possible.
* If the number of characters before the cursor decreased, need to pop a
* few characters from the replace stack.
* If the number of characters before the cursor increased, need to push a
* few NULs onto the replace stack.
*/
if (REPLACE_NORMAL(State) && start_col >= 0) {
while (start_col > (int)curwin->w_cursor.col) {
replace_join(0); /* remove a NUL from the replace stack */
--start_col;
}
while (start_col < (int)curwin->w_cursor.col || replaced) {
replace_push(NUL);
if (replaced) {
replace_push(replaced);
replaced = NUL;
}
++start_col;
}
}
/*
* For VREPLACE mode, we also have to fix the replace stack. In this case
* it is always possible because we backspace over the whole line and then
* put it back again the way we wanted it.
*/
if (State & VREPLACE_FLAG) {
/* Save new line */
new_line = vim_strsave(get_cursor_line_ptr());
/* We only put back the new line up to the cursor */
new_line[curwin->w_cursor.col] = NUL;
// Put back original line
ml_replace(curwin->w_cursor.lnum, orig_line, false);
curwin->w_cursor.col = orig_col;
/* Backspace from cursor to start of line */
backspace_until_column(0);
/* Insert new stuff into line again */
ins_bytes(new_line);
xfree(new_line);
}
// change_indent seems to bec called twice, this combination only triggers
// once for both calls
if (new_cursor_col - vcol != 0) {
extmark_col_adjust(curbuf, curwin->w_cursor.lnum, 0, 0, amount,
kExtmarkUndo);
}
}
/*
* Truncate the space at the end of a line. This is to be used only in an
* insert mode. It handles fixing the replace stack for REPLACE and VREPLACE
* modes.
*/
void truncate_spaces(char_u *line)
{
int i;
/* find start of trailing white space */
for (i = (int)STRLEN(line) - 1; i >= 0 && ascii_iswhite(line[i]); i--) {
if (State & REPLACE_FLAG)
replace_join(0); /* remove a NUL from the replace stack */
}
line[i + 1] = NUL;
}
/*
* Backspace the cursor until the given column. Handles REPLACE and VREPLACE
* modes correctly. May also be used when not in insert mode at all.
* Will attempt not to go before "col" even when there is a composing
* character.
*/
void backspace_until_column(int col)
{
while ((int)curwin->w_cursor.col > col) {
curwin->w_cursor.col--;
if (State & REPLACE_FLAG)
replace_do_bs(col);
else if (!del_char_after_col(col))
break;
}
}
/// Like del_char(), but make sure not to go before column "limit_col".
/// Only matters when there are composing characters.
///
/// @param limit_col only delete the character if it is after this column
//
/// @return true when something was deleted.
static bool del_char_after_col(int limit_col)
{
if (enc_utf8 && limit_col >= 0) {
colnr_T ecol = curwin->w_cursor.col + 1;
// Make sure the cursor is at the start of a character, but
// skip forward again when going too far back because of a
// composing character.
mb_adjust_cursor();
while (curwin->w_cursor.col < (colnr_T)limit_col) {
int l = utf_ptr2len(get_cursor_pos_ptr());
if (l == 0) { // end of line
break;
}
curwin->w_cursor.col += l;
}
if (*get_cursor_pos_ptr() == NUL || curwin->w_cursor.col == ecol) {
return false;
}
del_bytes(ecol - curwin->w_cursor.col, false, true);
} else {
del_char(false);
}
return true;
}
/*
* CTRL-X pressed in Insert mode.
*/
static void ins_ctrl_x(void)
{
/* CTRL-X after CTRL-X CTRL-V doesn't do anything, so that CTRL-X
* CTRL-V works like CTRL-N */
if (ctrl_x_mode != CTRL_X_CMDLINE) {
/* if the next ^X<> won't ADD nothing, then reset
* compl_cont_status */
if (compl_cont_status & CONT_N_ADDS)
compl_cont_status |= CONT_INTRPT;
else
compl_cont_status = 0;
/* We're not sure which CTRL-X mode it will be yet */
ctrl_x_mode = CTRL_X_NOT_DEFINED_YET;
edit_submode = (char_u *)_(CTRL_X_MSG(ctrl_x_mode));
edit_submode_pre = NULL;
showmode();
}
}
// Whether other than default completion has been selected.
bool ctrl_x_mode_not_default(void)
{
return ctrl_x_mode != CTRL_X_NORMAL;
}
// Whether CTRL-X was typed without a following character.
bool ctrl_x_mode_not_defined_yet(void)
{
return ctrl_x_mode == CTRL_X_NOT_DEFINED_YET;
}
/// Check that the "dict" or "tsr" option can be used.
///
/// @param dict_opt check "dict" when true, "tsr" when false.
static bool check_compl_option(bool dict_opt)
{
if (dict_opt
? (*curbuf->b_p_dict == NUL && *p_dict == NUL && !curwin->w_p_spell)
: (*curbuf->b_p_tsr == NUL && *p_tsr == NUL)) {
ctrl_x_mode = CTRL_X_NORMAL;
edit_submode = NULL;
msg_attr((dict_opt
? _("'dictionary' option is empty")
: _("'thesaurus' option is empty")), HL_ATTR(HLF_E));
if (emsg_silent == 0) {
vim_beep(BO_COMPL);
setcursor();
ui_flush();
os_delay(2000L, false);
}
return false;
}
return true;
}
/// Check that the character "c" a valid key to go to or keep us in CTRL-X mode?
/// This depends on the current mode.
///
/// @param c character to check
bool vim_is_ctrl_x_key(int c)
FUNC_ATTR_WARN_UNUSED_RESULT
{
// Always allow ^R - let its results then be checked
if (c == Ctrl_R) {
return true;
}
// Accept <PageUp> and <PageDown> if the popup menu is visible.
if (ins_compl_pum_key(c)) {
return true;
}
switch (ctrl_x_mode) {
case 0: // Not in any CTRL-X mode
return c == Ctrl_N || c == Ctrl_P || c == Ctrl_X;
case CTRL_X_NOT_DEFINED_YET:
return c == Ctrl_X || c == Ctrl_Y || c == Ctrl_E
|| c == Ctrl_L || c == Ctrl_F || c == Ctrl_RSB
|| c == Ctrl_I || c == Ctrl_D || c == Ctrl_P
|| c == Ctrl_N || c == Ctrl_T || c == Ctrl_V
|| c == Ctrl_Q || c == Ctrl_U || c == Ctrl_O
|| c == Ctrl_S || c == Ctrl_K || c == 's';
case CTRL_X_SCROLL:
return c == Ctrl_Y || c == Ctrl_E;
case CTRL_X_WHOLE_LINE:
return c == Ctrl_L || c == Ctrl_P || c == Ctrl_N;
case CTRL_X_FILES:
return c == Ctrl_F || c == Ctrl_P || c == Ctrl_N;
case CTRL_X_DICTIONARY:
return c == Ctrl_K || c == Ctrl_P || c == Ctrl_N;
case CTRL_X_THESAURUS:
return c == Ctrl_T || c == Ctrl_P || c == Ctrl_N;
case CTRL_X_TAGS:
return c == Ctrl_RSB || c == Ctrl_P || c == Ctrl_N;
case CTRL_X_PATH_PATTERNS:
return c == Ctrl_P || c == Ctrl_N;
case CTRL_X_PATH_DEFINES:
return c == Ctrl_D || c == Ctrl_P || c == Ctrl_N;
case CTRL_X_CMDLINE:
return c == Ctrl_V || c == Ctrl_Q || c == Ctrl_P || c == Ctrl_N
|| c == Ctrl_X;
case CTRL_X_FUNCTION:
return c == Ctrl_U || c == Ctrl_P || c == Ctrl_N;
case CTRL_X_OMNI:
return c == Ctrl_O || c == Ctrl_P || c == Ctrl_N;
case CTRL_X_SPELL:
return c == Ctrl_S || c == Ctrl_P || c == Ctrl_N;
case CTRL_X_EVAL:
return (c == Ctrl_P || c == Ctrl_N);
}
internal_error("vim_is_ctrl_x_key()");
return false;
}
/// Check that character "c" is part of the item currently being
/// completed. Used to decide whether to abandon complete mode when the menu
/// is visible.
///
/// @param c character to check
static bool ins_compl_accept_char(int c)
FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
if (ctrl_x_mode & CTRL_X_WANT_IDENT) {
// When expanding an identifier only accept identifier chars.
return vim_isIDc(c);
}
switch (ctrl_x_mode) {
case CTRL_X_FILES:
// When expanding file name only accept file name chars. But not
// path separators, so that "proto/<Tab>" expands files in
// "proto", not "proto/" as a whole
return vim_isfilec(c) && !vim_ispathsep(c);
case CTRL_X_CMDLINE:
case CTRL_X_OMNI:
// Command line and Omni completion can work with just about any
// printable character, but do stop at white space.
return vim_isprintc(c) && !ascii_iswhite(c);
case CTRL_X_WHOLE_LINE:
// For while line completion a space can be part of the line.
return vim_isprintc(c);
}
return vim_iswordc(c);
}
/// This is like ins_compl_add(), but if 'ic' and 'inf' are set, then the
/// case of the originally typed text is used, and the case of the completed
/// text is inferred, ie this tries to work out what case you probably wanted
/// the rest of the word to be in -- webb
///
/// @param[in] cont_s_ipos next ^X<> will set initial_pos
int ins_compl_add_infercase(char_u *str_arg, int len, bool icase, char_u *fname,
int dir, bool cont_s_ipos)
FUNC_ATTR_NONNULL_ARG(1)
{
char_u *str = str_arg;
int i, c;
int actual_len; /* Take multi-byte characters */
int actual_compl_length; /* into account. */
int min_len;
bool has_lower = false;
bool was_letter = false;
int flags = 0;
if (p_ic && curbuf->b_p_inf && len > 0) {
// Infer case of completed part.
// Find actual length of completion.
if (has_mbyte) {
const char_u *p = str;
actual_len = 0;
while (*p != NUL) {
MB_PTR_ADV(p);
actual_len++;
}
} else
actual_len = len;
/* Find actual length of original text. */
if (has_mbyte) {
const char_u *p = compl_orig_text;
actual_compl_length = 0;
while (*p != NUL) {
MB_PTR_ADV(p);
actual_compl_length++;
}
} else
actual_compl_length = compl_length;
/* "actual_len" may be smaller than "actual_compl_length" when using
* thesaurus, only use the minimum when comparing. */
min_len = actual_len < actual_compl_length
? actual_len : actual_compl_length;
// Allocate wide character array for the completion and fill it.
int *const wca = xmalloc(actual_len * sizeof(*wca));
{
const char_u *p = str;
for (i = 0; i < actual_len; i++) {
if (has_mbyte) {
wca[i] = mb_ptr2char_adv(&p);
} else {
wca[i] = *(p++);
}
}
}
// Rule 1: Were any chars converted to lower?
{
const char_u *p = compl_orig_text;
for (i = 0; i < min_len; i++) {
if (has_mbyte) {
c = mb_ptr2char_adv(&p);
} else {
c = *(p++);
}
if (mb_islower(c)) {
has_lower = true;
if (mb_isupper(wca[i])) {
// Rule 1 is satisfied.
for (i = actual_compl_length; i < actual_len; i++) {
wca[i] = mb_tolower(wca[i]);
}
break;
}
}
}
}
/*
* Rule 2: No lower case, 2nd consecutive letter converted to
* upper case.
*/
if (!has_lower) {
const char_u *p = compl_orig_text;
for (i = 0; i < min_len; i++) {
if (has_mbyte) {
c = mb_ptr2char_adv(&p);
} else {
c = *(p++);
}
if (was_letter && mb_isupper(c) && mb_islower(wca[i])) {
// Rule 2 is satisfied.
for (i = actual_compl_length; i < actual_len; i++) {
wca[i] = mb_toupper(wca[i]);
}
break;
}
was_letter = mb_islower(c) || mb_isupper(c);
}
}
// Copy the original case of the part we typed.
{
const char_u *p = compl_orig_text;
for (i = 0; i < min_len; i++) {
if (has_mbyte) {
c = mb_ptr2char_adv(&p);
} else {
c = *(p++);
}
if (mb_islower(c)) {
wca[i] = mb_tolower(wca[i]);
} else if (mb_isupper(c)) {
wca[i] = mb_toupper(wca[i]);
}
}
}
// Generate encoding specific output from wide character array.
// Multi-byte characters can occupy up to five bytes more than
// ASCII characters, and we also need one byte for NUL, so stay
// six bytes away from the edge of IObuff.
{
char_u *p = IObuff;
i = 0;
while (i < actual_len && (p - IObuff + 6) < IOSIZE) {
p += utf_char2bytes(wca[i++], p);
}
*p = NUL;
}
xfree(wca);
str = IObuff;
}
if (cont_s_ipos) {
flags |= CP_CONT_S_IPOS;
}
if (icase) {
flags |= CP_ICASE;
}
return ins_compl_add(str, len, fname, NULL, false, dir, flags, false);
}
/// Add a match to the list of matches
///
/// @param[in] str Match to add.
/// @param[in] len Match length, -1 to use #STRLEN.
/// @param[in] fname File name match comes from. May be NULL.
/// @param[in] cptext Extra text for popup menu. May be NULL. If not NULL,
/// must have exactly #CPT_COUNT items.
/// @param[in] cptext_allocated If true, will not copy cptext strings.
///
/// @note Will free strings in case of error.
/// cptext itself will not be freed.
/// @param[in] cdir Completion direction.
/// @param[in] adup True if duplicate matches are to be accepted.
///
/// @return NOTDONE if the given string is already in the list of completions,
/// otherwise it is added to the list and OK is returned. FAIL will be
/// returned in case of error.
static int ins_compl_add(char_u *const str, int len,
char_u *const fname,
char_u *const *const cptext,
const bool cptext_allocated,
const Direction cdir, int flags_arg, const bool adup)
FUNC_ATTR_NONNULL_ARG(1)
{
compl_T *match;
int dir = (cdir == kDirectionNotSet ? compl_direction : cdir);
int flags = flags_arg;
os_breakcheck();
#define FREE_CPTEXT(cptext, cptext_allocated) \
do { \
if (cptext != NULL && cptext_allocated) { \
for (size_t i = 0; i < CPT_COUNT; i++) { \
xfree(cptext[i]); \
} \
} \
} while (0)
if (got_int) {
FREE_CPTEXT(cptext, cptext_allocated);
return FAIL;
}
if (len < 0) {
len = (int)STRLEN(str);
}
/*
* If the same match is already present, don't add it.
*/
if (compl_first_match != NULL && !adup) {
match = compl_first_match;
do {
if (!(match->cp_flags & CP_ORIGINAL_TEXT)
&& STRNCMP(match->cp_str, str, len) == 0
&& match->cp_str[len] == NUL) {
FREE_CPTEXT(cptext, cptext_allocated);
return NOTDONE;
}
match = match->cp_next;
} while (match != NULL && match != compl_first_match);
}
/* Remove any popup menu before changing the list of matches. */
ins_compl_del_pum();
/*
* Allocate a new match structure.
* Copy the values to the new match structure.
*/
match = xcalloc(1, sizeof(compl_T));
match->cp_number = -1;
if (flags & CP_ORIGINAL_TEXT) {
match->cp_number = 0;
}
match->cp_str = vim_strnsave(str, len);
// match-fname is:
// - compl_curr_match->cp_fname if it is a string equal to fname.
// - a copy of fname, CP_FREE_FNAME is set to free later THE allocated mem.
// - NULL otherwise. --Acevedo
if (fname != NULL
&& compl_curr_match != NULL
&& compl_curr_match->cp_fname != NULL
&& STRCMP(fname, compl_curr_match->cp_fname) == 0) {
match->cp_fname = compl_curr_match->cp_fname;
} else if (fname != NULL) {
match->cp_fname = vim_strsave(fname);
flags |= CP_FREE_FNAME;
} else {
match->cp_fname = NULL;
}
match->cp_flags = flags;
if (cptext != NULL) {
int i;
for (i = 0; i < CPT_COUNT; i++) {
if (cptext[i] == NULL) {
continue;
}
if (*cptext[i] != NUL) {
match->cp_text[i] = (cptext_allocated
? cptext[i]
: (char_u *)xstrdup((char *)cptext[i]));
} else if (cptext_allocated) {
xfree(cptext[i]);
}
}
}
/*
* Link the new match structure in the list of matches.
*/
if (compl_first_match == NULL)
match->cp_next = match->cp_prev = NULL;
else if (dir == FORWARD) {
match->cp_next = compl_curr_match->cp_next;
match->cp_prev = compl_curr_match;
} else { /* BACKWARD */
match->cp_next = compl_curr_match;
match->cp_prev = compl_curr_match->cp_prev;
}
if (match->cp_next)
match->cp_next->cp_prev = match;
if (match->cp_prev)
match->cp_prev->cp_next = match;
else /* if there's nothing before, it is the first match */
compl_first_match = match;
compl_curr_match = match;
/*
* Find the longest common string if still doing that.
*/
if (compl_get_longest && (flags & CP_ORIGINAL_TEXT) == 0) {
ins_compl_longest_match(match);
}
return OK;
}
/// Check that "str[len]" matches with "match->cp_str", considering
/// "match->cp_flags".
///
/// @param match completion match
/// @param str character string to check
/// @param len lenth of "str"
static bool ins_compl_equal(compl_T *match, char_u *str, size_t len)
FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT FUNC_ATTR_NONNULL_ALL
{
if (match->cp_flags & CP_EQUAL) {
return true;
}
if (match->cp_flags & CP_ICASE) {
return STRNICMP(match->cp_str, str, len) == 0;
}
return STRNCMP(match->cp_str, str, len) == 0;
}
/*
* Reduce the longest common string for match "match".
*/
static void ins_compl_longest_match(compl_T *match)
{
char_u *p, *s;
int c1, c2;
int had_match;
if (compl_leader == NULL) {
/* First match, use it as a whole. */
compl_leader = vim_strsave(match->cp_str);
had_match = (curwin->w_cursor.col > compl_col);
ins_compl_delete();
ins_bytes(compl_leader + ins_compl_len());
ins_redraw(FALSE);
/* When the match isn't there (to avoid matching itself) remove it
* again after redrawing. */
if (!had_match)
ins_compl_delete();
compl_used_match = false;
} else {
/* Reduce the text if this match differs from compl_leader. */
p = compl_leader;
s = match->cp_str;
while (*p != NUL) {
c1 = utf_ptr2char(p);
c2 = utf_ptr2char(s);
if ((match->cp_flags & CP_ICASE)
? (mb_tolower(c1) != mb_tolower(c2))
: (c1 != c2)) {
break;
}
MB_PTR_ADV(p);
MB_PTR_ADV(s);
}
if (*p != NUL) {
/* Leader was shortened, need to change the inserted text. */
*p = NUL;
had_match = (curwin->w_cursor.col > compl_col);
ins_compl_delete();
ins_bytes(compl_leader + ins_compl_len());
ins_redraw(FALSE);
/* When the match isn't there (to avoid matching itself) remove it
* again after redrawing. */
if (!had_match)
ins_compl_delete();
}
compl_used_match = false;
}
}
/*
* Add an array of matches to the list of matches.
* Frees matches[].
*/
static void ins_compl_add_matches(int num_matches, char_u **matches, int icase)
FUNC_ATTR_NONNULL_ALL
{
int add_r = OK;
int dir = compl_direction;
for (int i = 0; i < num_matches && add_r != FAIL; i++) {
if ((add_r = ins_compl_add(matches[i], -1, NULL, NULL, false, dir,
icase ? CP_ICASE : 0, false)) == OK) {
// If dir was BACKWARD then honor it just once.
dir = FORWARD;
}
}
FreeWild(num_matches, matches);
}
/* Make the completion list cyclic.
* Return the number of matches (excluding the original).
*/
static int ins_compl_make_cyclic(void)
{
compl_T *match;
int count = 0;
if (compl_first_match != NULL) {
/*
* Find the end of the list.
*/
match = compl_first_match;
/* there's always an entry for the compl_orig_text, it doesn't count. */
while (match->cp_next != NULL && match->cp_next != compl_first_match) {
match = match->cp_next;
++count;
}
match->cp_next = compl_first_match;
compl_first_match->cp_prev = match;
}
return count;
}
// Set variables that store noselect and noinsert behavior from the
// 'completeopt' value.
void completeopt_was_set(void)
{
compl_no_insert = false;
compl_no_select = false;
if (strstr((char *)p_cot, "noselect") != NULL) {
compl_no_select = true;
}
if (strstr((char *)p_cot, "noinsert") != NULL) {
compl_no_insert = true;
}
}
/*
* Start completion for the complete() function.
* "startcol" is where the matched text starts (1 is first column).
* "list" is the list of matches.
*/
void set_completion(colnr_T startcol, list_T *list)
{
int flags = CP_ORIGINAL_TEXT;
// If already doing completions stop it.
if (ctrl_x_mode != CTRL_X_NORMAL) {
ins_compl_prep(' ');
}
ins_compl_clear();
ins_compl_free();
compl_direction = FORWARD;
if (startcol > curwin->w_cursor.col)
startcol = curwin->w_cursor.col;
compl_col = startcol;
compl_length = (int)curwin->w_cursor.col - (int)startcol;
/* compl_pattern doesn't need to be set */
compl_orig_text = vim_strnsave(get_cursor_line_ptr() + compl_col,
compl_length);
if (p_ic) {
flags |= CP_ICASE;
}
if (ins_compl_add(compl_orig_text, -1, NULL, NULL, false, 0,
flags, false) != OK) {
return;
}
ctrl_x_mode = CTRL_X_EVAL;
ins_compl_add_list(list);
compl_matches = ins_compl_make_cyclic();
compl_started = true;
compl_used_match = true;
compl_cont_status = 0;
int save_w_wrow = curwin->w_wrow;
int save_w_leftcol = curwin->w_leftcol;
compl_curr_match = compl_first_match;
if (compl_no_insert || compl_no_select) {
ins_complete(K_DOWN, false);
if (compl_no_select) {
ins_complete(K_UP, false);
}
} else {
ins_complete(Ctrl_N, false);
}
compl_enter_selects = compl_no_insert;
// Lazily show the popup menu, unless we got interrupted.
if (!compl_interrupted) {
show_pum(save_w_wrow, save_w_leftcol);
}
ui_flush();
}
/* "compl_match_array" points the currently displayed list of entries in the
* popup menu. It is NULL when there is no popup menu. */
static pumitem_T *compl_match_array = NULL;
static int compl_match_arraysize;
/*
* Remove any popup menu.
*/
static void ins_compl_del_pum(void)
{
if (compl_match_array != NULL) {
pum_undisplay(false);
XFREE_CLEAR(compl_match_array);
}
}
/// Check if the popup menu should be displayed.
static bool pum_wanted(void)
FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
// "completeopt" must contain "menu" or "menuone"
return vim_strchr(p_cot, 'm') != NULL;
}
/// Check that there are two or more matches to be shown in the popup menu.
/// One if "completopt" contains "menuone".
static bool pum_enough_matches(void)
FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
// Don't display the popup menu if there are no matches or there is only
// one (ignoring the original text).
compl_T *comp = compl_first_match;
int i = 0;
do {
if (comp == NULL
|| ((comp->cp_flags & CP_ORIGINAL_TEXT) == 0 && ++i == 2)) {
break;
}
comp = comp->cp_next;
} while (comp != compl_first_match);
if (strstr((char *)p_cot, "menuone") != NULL) {
return i >= 1;
}
return i >= 2;
}
static void trigger_complete_changed_event(int cur)
{
static bool recursive = false;
if (recursive) {
return;
}
dict_T *v_event = get_vim_var_dict(VV_EVENT);
if (cur < 0) {
tv_dict_add_dict(v_event, S_LEN("completed_item"), tv_dict_alloc());
} else {
dict_T *item = ins_compl_dict_alloc(compl_curr_match);
tv_dict_add_dict(v_event, S_LEN("completed_item"), item);
}
pum_set_event_info(v_event);
tv_dict_set_keys_readonly(v_event);
recursive = true;
textlock++;
apply_autocmds(EVENT_COMPLETECHANGED, NULL, NULL, false, curbuf);
textlock--;
recursive = false;
tv_dict_clear(v_event);
}
/// Show the popup menu for the list of matches.
/// Also adjusts "compl_shown_match" to an entry that is actually displayed.
void ins_compl_show_pum(void)
{
compl_T *compl;
compl_T *shown_compl = NULL;
bool did_find_shown_match = false;
bool shown_match_ok = false;
int i;
int cur = -1;
colnr_T col;
int lead_len = 0;
bool array_changed = false;
if (!pum_wanted() || !pum_enough_matches())
return;
/* Dirty hard-coded hack: remove any matchparen highlighting. */
do_cmdline_cmd("if exists('g:loaded_matchparen')|3match none|endif");
/* Update the screen before drawing the popup menu over it. */
update_screen(0);
if (compl_match_array == NULL) {
array_changed = true;
// Need to build the popup menu list.
compl_match_arraysize = 0;
compl = compl_first_match;
//
// If it's user complete function and refresh_always,
// do not use "compl_leader" as prefix filter.
//
if (ins_compl_need_restart()) {
XFREE_CLEAR(compl_leader);
}
if (compl_leader != NULL) {
lead_len = (int)STRLEN(compl_leader);
}
do {
if ((compl->cp_flags & CP_ORIGINAL_TEXT) == 0
&& (compl_leader == NULL
|| ins_compl_equal(compl, compl_leader, lead_len))) {
compl_match_arraysize++;
}
compl = compl->cp_next;
} while (compl != NULL && compl != compl_first_match);
if (compl_match_arraysize == 0)
return;
assert(compl_match_arraysize >= 0);
compl_match_array = xcalloc(compl_match_arraysize, sizeof(pumitem_T));
/* If the current match is the original text don't find the first
* match after it, don't highlight anything. */
if (compl_shown_match->cp_flags & CP_ORIGINAL_TEXT) {
shown_match_ok = true;
}
i = 0;
compl = compl_first_match;
do {
if ((compl->cp_flags & CP_ORIGINAL_TEXT) == 0
&& (compl_leader == NULL
|| ins_compl_equal(compl, compl_leader, lead_len))) {
if (!shown_match_ok) {
if (compl == compl_shown_match || did_find_shown_match) {
/* This item is the shown match or this is the
* first displayed item after the shown match. */
compl_shown_match = compl;
did_find_shown_match = true;
shown_match_ok = true;
} else {
// Remember this displayed match for when the
// shown match is just below it.
shown_compl = compl;
}
cur = i;
}
if (compl->cp_text[CPT_ABBR] != NULL)
compl_match_array[i].pum_text =
compl->cp_text[CPT_ABBR];
else
compl_match_array[i].pum_text = compl->cp_str;
compl_match_array[i].pum_kind = compl->cp_text[CPT_KIND];
compl_match_array[i].pum_info = compl->cp_text[CPT_INFO];
if (compl->cp_text[CPT_MENU] != NULL)
compl_match_array[i++].pum_extra =
compl->cp_text[CPT_MENU];
else
compl_match_array[i++].pum_extra = compl->cp_fname;
}
if (compl == compl_shown_match) {
did_find_shown_match = true;
/* When the original text is the shown match don't set
* compl_shown_match. */
if (compl->cp_flags & CP_ORIGINAL_TEXT) {
shown_match_ok = true;
}
if (!shown_match_ok && shown_compl != NULL) {
/* The shown match isn't displayed, set it to the
* previously displayed match. */
compl_shown_match = shown_compl;
shown_match_ok = true;
}
}
compl = compl->cp_next;
} while (compl != NULL && compl != compl_first_match);
if (!shown_match_ok) /* no displayed match at all */
cur = -1;
} else {
/* popup menu already exists, only need to find the current item.*/
for (i = 0; i < compl_match_arraysize; ++i)
if (compl_match_array[i].pum_text == compl_shown_match->cp_str
|| compl_match_array[i].pum_text
== compl_shown_match->cp_text[CPT_ABBR]) {
cur = i;
break;
}
}
// In Replace mode when a $ is displayed at the end of the line only
// part of the screen would be updated. We do need to redraw here.
dollar_vcol = -1;
// Compute the screen column of the start of the completed text.
// Use the cursor to get all wrapping and other settings right.
col = curwin->w_cursor.col;
curwin->w_cursor.col = compl_col;
pum_selected_item = cur;
pum_display(compl_match_array, compl_match_arraysize, cur, array_changed, 0);
curwin->w_cursor.col = col;
if (has_event(EVENT_COMPLETECHANGED)) {
trigger_complete_changed_event(cur);
}
}
#define DICT_FIRST (1) /* use just first element in "dict" */
#define DICT_EXACT (2) /* "dict" is the exact name of a file */
/*
* Add any identifiers that match the given pattern in the list of dictionary
* files "dict_start" to the list of completions.
*/
static void
ins_compl_dictionaries (
char_u *dict_start,
char_u *pat,
int flags, /* DICT_FIRST and/or DICT_EXACT */
int thesaurus /* Thesaurus completion */
)
{
char_u *dict = dict_start;
char_u *ptr;
char_u *buf;
regmatch_T regmatch;
char_u **files;
int count;
int save_p_scs;
int dir = compl_direction;
if (*dict == NUL) {
/* When 'dictionary' is empty and spell checking is enabled use
* "spell". */
if (!thesaurus && curwin->w_p_spell)
dict = (char_u *)"spell";
else
return;
}
buf = xmalloc(LSIZE);
regmatch.regprog = NULL; /* so that we can goto theend */
/* If 'infercase' is set, don't use 'smartcase' here */
save_p_scs = p_scs;
if (curbuf->b_p_inf)
p_scs = FALSE;
/* When invoked to match whole lines for CTRL-X CTRL-L adjust the pattern
* to only match at the start of a line. Otherwise just match the
* pattern. Also need to double backslashes. */
if (CTRL_X_MODE_LINE_OR_EVAL(ctrl_x_mode)) {
char_u *pat_esc = vim_strsave_escaped(pat, (char_u *)"\\");
size_t len = STRLEN(pat_esc) + 10;
ptr = xmalloc(len);
vim_snprintf((char *)ptr, len, "^\\s*\\zs\\V%s", pat_esc);
regmatch.regprog = vim_regcomp(ptr, RE_MAGIC);
xfree(pat_esc);
xfree(ptr);
} else {
regmatch.regprog = vim_regcomp(pat, p_magic ? RE_MAGIC : 0);
if (regmatch.regprog == NULL)
goto theend;
}
/* ignore case depends on 'ignorecase', 'smartcase' and "pat" */
regmatch.rm_ic = ignorecase(pat);
while (*dict != NUL && !got_int && !compl_interrupted) {
/* copy one dictionary file name into buf */
if (flags == DICT_EXACT) {
count = 1;
files = &dict;
} else {
/* Expand wildcards in the dictionary name, but do not allow
* backticks (for security, the 'dict' option may have been set in
* a modeline). */
copy_option_part(&dict, buf, LSIZE, ",");
if (!thesaurus && STRCMP(buf, "spell") == 0)
count = -1;
else if (vim_strchr(buf, '`') != NULL
|| expand_wildcards(1, &buf, &count, &files,
EW_FILE|EW_SILENT) != OK)
count = 0;
}
if (count == -1) {
/* Complete from active spelling. Skip "\<" in the pattern, we
* don't use it as a RE. */
if (pat[0] == '\\' && pat[1] == '<')
ptr = pat + 2;
else
ptr = pat;
spell_dump_compl(ptr, regmatch.rm_ic, &dir, 0);
} else if (count > 0) { /* avoid warning for using "files" uninit */
ins_compl_files(count, files, thesaurus, flags,
&regmatch, buf, &dir);
if (flags != DICT_EXACT)
FreeWild(count, files);
}
if (flags != 0)
break;
}
theend:
p_scs = save_p_scs;
vim_regfree(regmatch.regprog);
xfree(buf);
}
static void ins_compl_files(int count, char_u **files, int thesaurus, int flags, regmatch_T *regmatch, char_u *buf, int *dir)
{
char_u *ptr;
int i;
FILE *fp;
int add_r;
for (i = 0; i < count && !got_int && !compl_interrupted; i++) {
fp = os_fopen((char *)files[i], "r"); // open dictionary file
if (flags != DICT_EXACT) {
vim_snprintf((char *)IObuff, IOSIZE,
_("Scanning dictionary: %s"), (char *)files[i]);
(void)msg_trunc_attr(IObuff, true, HL_ATTR(HLF_R));
}
if (fp == NULL) {
continue;
}
/*
* Read dictionary file line by line.
* Check each line for a match.
*/
while (!got_int && !compl_interrupted
&& !vim_fgets(buf, LSIZE, fp)) {
ptr = buf;
while (vim_regexec(regmatch, buf, (colnr_T)(ptr - buf))) {
ptr = regmatch->startp[0];
if (CTRL_X_MODE_LINE_OR_EVAL(ctrl_x_mode)) {
ptr = find_line_end(ptr);
} else {
ptr = find_word_end(ptr);
}
add_r = ins_compl_add_infercase(regmatch->startp[0],
(int)(ptr - regmatch->startp[0]),
p_ic, files[i], *dir, false);
if (thesaurus) {
char_u *wstart;
/*
* Add the other matches on the line
*/
ptr = buf;
while (!got_int) {
/* Find start of the next word. Skip white
* space and punctuation. */
ptr = find_word_start(ptr);
if (*ptr == NUL || *ptr == NL)
break;
wstart = ptr;
/* Find end of the word. */
if (has_mbyte)
/* Japanese words may have characters in
* different classes, only separate words
* with single-byte non-word characters. */
while (*ptr != NUL) {
int l = (*mb_ptr2len)(ptr);
if (l < 2 && !vim_iswordc(*ptr))
break;
ptr += l;
}
else
ptr = find_word_end(ptr);
// Add the word. Skip the regexp match.
if (wstart != regmatch->startp[0]) {
add_r = ins_compl_add_infercase(wstart, (int)(ptr - wstart),
p_ic, files[i], *dir, false);
}
}
}
if (add_r == OK)
/* if dir was BACKWARD then honor it just once */
*dir = FORWARD;
else if (add_r == FAIL)
break;
/* avoid expensive call to vim_regexec() when at end
* of line */
if (*ptr == '\n' || got_int)
break;
}
line_breakcheck();
ins_compl_check_keys(50, false);
}
fclose(fp);
}
}
/*
* Find the start of the next word.
* Returns a pointer to the first char of the word. Also stops at a NUL.
*/
char_u *find_word_start(char_u *ptr)
{
if (has_mbyte)
while (*ptr != NUL && *ptr != '\n' && mb_get_class(ptr) <= 1)
ptr += (*mb_ptr2len)(ptr);
else
while (*ptr != NUL && *ptr != '\n' && !vim_iswordc(*ptr))
++ptr;
return ptr;
}
/*
* Find the end of the word. Assumes it starts inside a word.
* Returns a pointer to just after the word.
*/
char_u *find_word_end(char_u *ptr)
{
int start_class;
if (has_mbyte) {
start_class = mb_get_class(ptr);
if (start_class > 1)
while (*ptr != NUL) {
ptr += (*mb_ptr2len)(ptr);
if (mb_get_class(ptr) != start_class)
break;
}
} else
while (vim_iswordc(*ptr))
++ptr;
return ptr;
}
/*
* Find the end of the line, omitting CR and NL at the end.
* Returns a pointer to just after the line.
*/
static char_u *find_line_end(char_u *ptr)
{
char_u *s;
s = ptr + STRLEN(ptr);
while (s > ptr && (s[-1] == CAR || s[-1] == NL))
--s;
return s;
}
/*
* Free the list of completions
*/
static void ins_compl_free(void)
{
compl_T *match;
XFREE_CLEAR(compl_pattern);
XFREE_CLEAR(compl_leader);
if (compl_first_match == NULL)
return;
ins_compl_del_pum();
pum_clear();
compl_curr_match = compl_first_match;
do {
match = compl_curr_match;
compl_curr_match = compl_curr_match->cp_next;
xfree(match->cp_str);
// several entries may use the same fname, free it just once.
if (match->cp_flags & CP_FREE_FNAME) {
xfree(match->cp_fname);
}
for (int i = 0; i < CPT_COUNT; i++) {
xfree(match->cp_text[i]);
}
xfree(match);
} while (compl_curr_match != NULL && compl_curr_match != compl_first_match);
compl_first_match = compl_curr_match = NULL;
compl_shown_match = NULL;
compl_old_match = NULL;
}
static void ins_compl_clear(void)
{
compl_cont_status = 0;
compl_started = false;
compl_matches = 0;
XFREE_CLEAR(compl_pattern);
XFREE_CLEAR(compl_leader);
edit_submode_extra = NULL;
XFREE_CLEAR(compl_orig_text);
compl_enter_selects = false;
// clear v:completed_item
dict_T *const d = tv_dict_alloc();
d->dv_lock = VAR_FIXED;
set_vim_var_dict(VV_COMPLETED_ITEM, d);
}
/// Check that Insert completion is active.
bool ins_compl_active(void)
FUNC_ATTR_PURE
{
return compl_started;
}
// Get complete information
void get_complete_info(list_T *what_list, dict_T *retdict)
{
#define CI_WHAT_MODE 0x01
#define CI_WHAT_PUM_VISIBLE 0x02
#define CI_WHAT_ITEMS 0x04
#define CI_WHAT_SELECTED 0x08
#define CI_WHAT_INSERTED 0x10
#define CI_WHAT_ALL 0xff
int what_flag;
if (what_list == NULL) {
what_flag = CI_WHAT_ALL;
} else {
what_flag = 0;
for (listitem_T *item = tv_list_first(what_list)
; item != NULL
; item = TV_LIST_ITEM_NEXT(what_list, item)) {
const char *what = tv_get_string(TV_LIST_ITEM_TV(item));
if (STRCMP(what, "mode") == 0) {
what_flag |= CI_WHAT_MODE;
} else if (STRCMP(what, "pum_visible") == 0) {
what_flag |= CI_WHAT_PUM_VISIBLE;
} else if (STRCMP(what, "items") == 0) {
what_flag |= CI_WHAT_ITEMS;
} else if (STRCMP(what, "selected") == 0) {
what_flag |= CI_WHAT_SELECTED;
} else if (STRCMP(what, "inserted") == 0) {
what_flag |= CI_WHAT_INSERTED;
}
}
}
int ret = OK;
if (what_flag & CI_WHAT_MODE) {
ret = tv_dict_add_str(retdict, S_LEN("mode"),
(char *)ins_compl_mode());
}
if (ret == OK && (what_flag & CI_WHAT_PUM_VISIBLE)) {
ret = tv_dict_add_nr(retdict, S_LEN("pum_visible"), pum_visible());
}
if (ret == OK && (what_flag & CI_WHAT_ITEMS)) {
list_T *li = tv_list_alloc(ins_compl_len());
ret = tv_dict_add_list(retdict, S_LEN("items"), li);
if (ret == OK && compl_first_match != NULL) {
compl_T *match = compl_first_match;
do {
if (!(match->cp_flags & CP_ORIGINAL_TEXT)) {
dict_T *di = tv_dict_alloc();
tv_list_append_dict(li, di);
tv_dict_add_str(di, S_LEN("word"),
(char *)EMPTY_IF_NULL(match->cp_str));
tv_dict_add_str(di, S_LEN("abbr"),
(char *)EMPTY_IF_NULL(match->cp_text[CPT_ABBR]));
tv_dict_add_str(di, S_LEN("menu"),
(char *)EMPTY_IF_NULL(match->cp_text[CPT_MENU]));
tv_dict_add_str(di, S_LEN("kind"),
(char *)EMPTY_IF_NULL(match->cp_text[CPT_KIND]));
tv_dict_add_str(di, S_LEN("info"),
(char *)EMPTY_IF_NULL(match->cp_text[CPT_INFO]));
tv_dict_add_str(di, S_LEN("user_data"),
(char *)EMPTY_IF_NULL(match->cp_text[CPT_USER_DATA]));
}
match = match->cp_next;
} while (match != NULL && match != compl_first_match);
}
}
if (ret == OK && (what_flag & CI_WHAT_SELECTED)) {
ret = tv_dict_add_nr(retdict, S_LEN("selected"),
(compl_curr_match != NULL)
? compl_curr_match->cp_number - 1 : -1);
}
(void)ret;
// TODO(vim):
// if (ret == OK && (what_flag & CI_WHAT_INSERTED))
}
// Return Insert completion mode name string
static char_u * ins_compl_mode(void)
{
if (ctrl_x_mode == CTRL_X_NOT_DEFINED_YET || compl_started) {
return (char_u *)ctrl_x_mode_names[ctrl_x_mode & ~CTRL_X_WANT_IDENT];
}
return (char_u *)"";
}
/*
* Delete one character before the cursor and show the subset of the matches
* that match the word that is now before the cursor.
* Returns the character to be used, NUL if the work is done and another char
* to be got from the user.
*/
static int ins_compl_bs(void)
{
char_u *line;
char_u *p;
line = get_cursor_line_ptr();
p = line + curwin->w_cursor.col;
MB_PTR_BACK(line, p);
// Stop completion when the whole word was deleted. For Omni completion
// allow the word to be deleted, we won't match everything.
// Respect the 'backspace' option.
if ((int)(p - line) - (int)compl_col < 0
|| ((int)(p - line) - (int)compl_col == 0
&& ctrl_x_mode != CTRL_X_OMNI) || ctrl_x_mode == CTRL_X_EVAL
|| (!can_bs(BS_START) && (int)(p - line) - (int)compl_col
- compl_length < 0)) {
return K_BS;
}
/* Deleted more than what was used to find matches or didn't finish
* finding all matches: need to look for matches all over again. */
if (curwin->w_cursor.col <= compl_col + compl_length
|| ins_compl_need_restart())
ins_compl_restart();
xfree(compl_leader);
compl_leader = vim_strnsave(line + compl_col, (int)(p - line) - compl_col);
ins_compl_new_leader();
if (compl_shown_match != NULL)
/* Make sure current match is not a hidden item. */
compl_curr_match = compl_shown_match;
return NUL;
}
/// Check that we need to find matches again, ins_compl_restart() is to
/// be called.
static bool ins_compl_need_restart(void)
FUNC_ATTR_PURE
{
// Return true if we didn't complete finding matches or when the
// "completefunc" returned "always" in the "refresh" dictionary item.
return compl_was_interrupted
|| ((ctrl_x_mode == CTRL_X_FUNCTION || ctrl_x_mode == CTRL_X_OMNI)
&& compl_opt_refresh_always);
}
/*
* Called after changing "compl_leader".
* Show the popup menu with a different set of matches.
* May also search for matches again if the previous search was interrupted.
*/
static void ins_compl_new_leader(void)
{
ins_compl_del_pum();
ins_compl_delete();
ins_bytes(compl_leader + ins_compl_len());
compl_used_match = false;
if (compl_started) {
ins_compl_set_original_text(compl_leader);
} else {
spell_bad_len = 0; // need to redetect bad word
// Matches were cleared, need to search for them now.
// Set "compl_restarting" to avoid that the first match is inserted.
compl_restarting = true;
if (ins_complete(Ctrl_N, true) == FAIL) {
compl_cont_status = 0;
}
compl_restarting = false;
}
compl_enter_selects = !compl_used_match;
/* Show the popup menu with a different set of matches. */
ins_compl_show_pum();
/* Don't let Enter select the original text when there is no popup menu.
* Don't let Enter select when use user function and refresh_always is set */
if (compl_match_array == NULL || ins_compl_need_restart())
compl_enter_selects = FALSE;
}
/*
* Return the length of the completion, from the completion start column to
* the cursor column. Making sure it never goes below zero.
*/
static int ins_compl_len(void)
{
int off = (int)curwin->w_cursor.col - (int)compl_col;
if (off < 0)
return 0;
return off;
}
/*
* Append one character to the match leader. May reduce the number of
* matches.
*/
static void ins_compl_addleader(int c)
{
int cc;
if (stop_arrow() == FAIL) {
return;
}
if ((cc = utf_char2len(c)) > 1) {
char_u buf[MB_MAXBYTES + 1];
utf_char2bytes(c, buf);
buf[cc] = NUL;
ins_char_bytes(buf, cc);
} else {
ins_char(c);
}
/* If we didn't complete finding matches we must search again. */
if (ins_compl_need_restart())
ins_compl_restart();
xfree(compl_leader);
compl_leader = vim_strnsave(get_cursor_line_ptr() + compl_col,
(int)(curwin->w_cursor.col - compl_col));
ins_compl_new_leader();
}
/*
* Setup for finding completions again without leaving CTRL-X mode. Used when
* BS or a key was typed while still searching for matches.
*/
static void ins_compl_restart(void)
{
/* update screen before restart.
* so if complete is blocked,
* will stay to the last popup menu and reduce flicker */
update_screen(0);
ins_compl_free();
compl_started = false;
compl_matches = 0;
compl_cont_status = 0;
compl_cont_mode = 0;
}
/*
* Set the first match, the original text.
*/
static void ins_compl_set_original_text(char_u *str)
FUNC_ATTR_NONNULL_ALL
{
// Replace the original text entry.
// The CP_ORIGINAL_TEXT flag is either at the first item or might possibly be
// at the last item for backward completion
if (compl_first_match->cp_flags & CP_ORIGINAL_TEXT) { // safety check
xfree(compl_first_match->cp_str);
compl_first_match->cp_str = vim_strsave(str);
} else if (compl_first_match->cp_prev != NULL
&& (compl_first_match->cp_prev->cp_flags & CP_ORIGINAL_TEXT)) {
xfree(compl_first_match->cp_prev->cp_str);
compl_first_match->cp_prev->cp_str = vim_strsave(str);
}
}
/*
* Append one character to the match leader. May reduce the number of
* matches.
*/
static void ins_compl_addfrommatch(void)
{
char_u *p;
int len = (int)curwin->w_cursor.col - (int)compl_col;
int c;
compl_T *cp;
assert(compl_shown_match != NULL);
p = compl_shown_match->cp_str;
if ((int)STRLEN(p) <= len) { /* the match is too short */
/* When still at the original match use the first entry that matches
* the leader. */
if (compl_shown_match->cp_flags & CP_ORIGINAL_TEXT) {
p = NULL;
for (cp = compl_shown_match->cp_next; cp != NULL
&& cp != compl_first_match; cp = cp->cp_next) {
if (compl_leader == NULL
|| ins_compl_equal(cp, compl_leader,
(int)STRLEN(compl_leader))) {
p = cp->cp_str;
break;
}
}
if (p == NULL || (int)STRLEN(p) <= len)
return;
} else
return;
}
p += len;
c = PTR2CHAR(p);
ins_compl_addleader(c);
}
/// Prepare for Insert mode completion, or stop it.
/// Called just after typing a character in Insert mode.
///
/// @param c character that was typed
///
/// @return true when the character is not to be inserted;
static bool ins_compl_prep(int c)
{
char_u *ptr;
bool retval = false;
/* Forget any previous 'special' messages if this is actually
* a ^X mode key - bar ^R, in which case we wait to see what it gives us.
*/
if (c != Ctrl_R && vim_is_ctrl_x_key(c))
edit_submode_extra = NULL;
/* Ignore end of Select mode mapping and mouse scroll buttons. */
if (c == K_SELECT || c == K_MOUSEDOWN || c == K_MOUSEUP
|| c == K_MOUSELEFT || c == K_MOUSERIGHT || c == K_EVENT
|| c == K_COMMAND) {
return retval;
}
/* Set "compl_get_longest" when finding the first matches. */
if (ctrl_x_mode == CTRL_X_NOT_DEFINED_YET
|| (ctrl_x_mode == CTRL_X_NORMAL && !compl_started)) {
compl_get_longest = (strstr((char *)p_cot, "longest") != NULL);
compl_used_match = true;
}
if (ctrl_x_mode == CTRL_X_NOT_DEFINED_YET) {
/*
* We have just typed CTRL-X and aren't quite sure which CTRL-X mode
* it will be yet. Now we decide.
*/
switch (c) {
case Ctrl_E:
case Ctrl_Y:
ctrl_x_mode = CTRL_X_SCROLL;
if (!(State & REPLACE_FLAG))
edit_submode = (char_u *)_(" (insert) Scroll (^E/^Y)");
else
edit_submode = (char_u *)_(" (replace) Scroll (^E/^Y)");
edit_submode_pre = NULL;
showmode();
break;
case Ctrl_L:
ctrl_x_mode = CTRL_X_WHOLE_LINE;
break;
case Ctrl_F:
ctrl_x_mode = CTRL_X_FILES;
break;
case Ctrl_K:
ctrl_x_mode = CTRL_X_DICTIONARY;
break;
case Ctrl_R:
/* Simply allow ^R to happen without affecting ^X mode */
break;
case Ctrl_T:
ctrl_x_mode = CTRL_X_THESAURUS;
break;
case Ctrl_U:
ctrl_x_mode = CTRL_X_FUNCTION;
break;
case Ctrl_O:
ctrl_x_mode = CTRL_X_OMNI;
break;
case 's':
case Ctrl_S:
ctrl_x_mode = CTRL_X_SPELL;
++emsg_off; /* Avoid getting the E756 error twice. */
spell_back_to_badword();
--emsg_off;
break;
case Ctrl_RSB:
ctrl_x_mode = CTRL_X_TAGS;
break;
case Ctrl_I:
case K_S_TAB:
ctrl_x_mode = CTRL_X_PATH_PATTERNS;
break;
case Ctrl_D:
ctrl_x_mode = CTRL_X_PATH_DEFINES;
break;
case Ctrl_V:
case Ctrl_Q:
ctrl_x_mode = CTRL_X_CMDLINE;
break;
case Ctrl_P:
case Ctrl_N:
/* ^X^P means LOCAL expansion if nothing interrupted (eg we
* just started ^X mode, or there were enough ^X's to cancel
* the previous mode, say ^X^F^X^X^P or ^P^X^X^X^P, see below)
* do normal expansion when interrupting a different mode (say
* ^X^F^X^P or ^P^X^X^P, see below)
* nothing changes if interrupting mode 0, (eg, the flag
* doesn't change when going to ADDING mode -- Acevedo */
if (!(compl_cont_status & CONT_INTRPT))
compl_cont_status |= CONT_LOCAL;
else if (compl_cont_mode != 0)
compl_cont_status &= ~CONT_LOCAL;
FALLTHROUGH;
default:
/* If we have typed at least 2 ^X's... for modes != 0, we set
* compl_cont_status = 0 (eg, as if we had just started ^X
* mode).
* For mode 0, we set "compl_cont_mode" to an impossible
* value, in both cases ^X^X can be used to restart the same
* mode (avoiding ADDING mode).
* Undocumented feature: In a mode != 0 ^X^P and ^X^X^P start
* 'complete' and local ^P expansions respectively.
* In mode 0 an extra ^X is needed since ^X^P goes to ADDING
* mode -- Acevedo */
if (c == Ctrl_X) {
if (compl_cont_mode != 0)
compl_cont_status = 0;
else
compl_cont_mode = CTRL_X_NOT_DEFINED_YET;
}
ctrl_x_mode = CTRL_X_NORMAL;
edit_submode = NULL;
showmode();
break;
}
} else if (ctrl_x_mode != CTRL_X_NORMAL) {
// We're already in CTRL-X mode, do we stay in it?
if (!vim_is_ctrl_x_key(c)) {
if (ctrl_x_mode == CTRL_X_SCROLL) {
ctrl_x_mode = CTRL_X_NORMAL;
} else {
ctrl_x_mode = CTRL_X_FINISHED;
}
edit_submode = NULL;
}
showmode();
}
if (compl_started || ctrl_x_mode == CTRL_X_FINISHED) {
/* Show error message from attempted keyword completion (probably
* 'Pattern not found') until another key is hit, then go back to
* showing what mode we are in. */
showmode();
if ((ctrl_x_mode == CTRL_X_NORMAL
&& c != Ctrl_N
&& c != Ctrl_P
&& c != Ctrl_R
&& !ins_compl_pum_key(c))
|| ctrl_x_mode == CTRL_X_FINISHED) {
/* Get here when we have finished typing a sequence of ^N and
* ^P or other completion characters in CTRL-X mode. Free up
* memory that was used, and make sure we can redo the insert. */
if (compl_curr_match != NULL || compl_leader != NULL || c == Ctrl_E) {
/*
* If any of the original typed text has been changed, eg when
* ignorecase is set, we must add back-spaces to the redo
* buffer. We add as few as necessary to delete just the part
* of the original text that has changed.
* When using the longest match, edited the match or used
* CTRL-E then don't use the current match.
*/
if (compl_curr_match != NULL && compl_used_match && c != Ctrl_E)
ptr = compl_curr_match->cp_str;
else
ptr = NULL;
ins_compl_fixRedoBufForLeader(ptr);
}
bool want_cindent = (can_cindent && cindent_on());
// When completing whole lines: fix indent for 'cindent'.
// Otherwise, break line if it's too long.
if (compl_cont_mode == CTRL_X_WHOLE_LINE) {
/* re-indent the current line */
if (want_cindent) {
do_c_expr_indent();
want_cindent = FALSE; /* don't do it again */
}
} else {
int prev_col = curwin->w_cursor.col;
// put the cursor on the last char, for 'tw' formatting
if (prev_col > 0) {
dec_cursor();
}
if (!arrow_used && !ins_need_undo && c != Ctrl_E) {
insertchar(NUL, 0, -1);
}
if (prev_col > 0
&& get_cursor_line_ptr()[curwin->w_cursor.col] != NUL) {
inc_cursor();
}
}
// If the popup menu is displayed pressing CTRL-Y means accepting
// the selection without inserting anything. When
// compl_enter_selects is set the Enter key does the same.
if ((c == Ctrl_Y || (compl_enter_selects
&& (c == CAR || c == K_KENTER || c == NL)))
&& pum_visible()) {
retval = true;
}
// CTRL-E means completion is Ended, go back to the typed text.
// but only do this, if the Popup is still visible
if (c == Ctrl_E) {
ins_compl_delete();
if (compl_leader != NULL) {
ins_bytes(compl_leader + ins_compl_len());
} else if (compl_first_match != NULL) {
ins_bytes(compl_orig_text + ins_compl_len());
}
retval = true;
}
auto_format(FALSE, TRUE);
ins_compl_free();
compl_started = false;
compl_matches = 0;
if (!shortmess(SHM_COMPLETIONMENU)) {
msg_clr_cmdline(); // necessary for "noshowmode"
}
ctrl_x_mode = CTRL_X_NORMAL;
compl_enter_selects = false;
if (edit_submode != NULL) {
edit_submode = NULL;
showmode();
}
// Avoid the popup menu remains displayed when leaving the
// command line window.
if (c == Ctrl_C && cmdwin_type != 0) {
update_screen(0);
}
/*
* Indent now if a key was typed that is in 'cinkeys'.
*/
if (want_cindent && in_cinkeys(KEY_COMPLETE, ' ', inindent(0)))
do_c_expr_indent();
/* Trigger the CompleteDone event to give scripts a chance to act
* upon the completion. */
ins_apply_autocmds(EVENT_COMPLETEDONE);
}
} else if (ctrl_x_mode == CTRL_X_LOCAL_MSG)
/* Trigger the CompleteDone event to give scripts a chance to act
* upon the (possibly failed) completion. */
ins_apply_autocmds(EVENT_COMPLETEDONE);
/* reset continue_* if we left expansion-mode, if we stay they'll be
* (re)set properly in ins_complete() */
if (!vim_is_ctrl_x_key(c)) {
compl_cont_status = 0;
compl_cont_mode = 0;
}
return retval;
}
/*
* Fix the redo buffer for the completion leader replacing some of the typed
* text. This inserts backspaces and appends the changed text.
* "ptr" is the known leader text or NUL.
*/
static void ins_compl_fixRedoBufForLeader(char_u *ptr_arg)
{
int len;
char_u *p;
char_u *ptr = ptr_arg;
if (ptr == NULL) {
if (compl_leader != NULL)
ptr = compl_leader;
else
return; /* nothing to do */
}
if (compl_orig_text != NULL) {
p = compl_orig_text;
for (len = 0; p[len] != NUL && p[len] == ptr[len]; len++) {}
if (len > 0) {
len -= utf_head_off(p, p + len);
}
for (p += len; *p != NUL; MB_PTR_ADV(p)) {
AppendCharToRedobuff(K_BS);
}
} else {
len = 0;
}
AppendToRedobuffLit(ptr + len, -1);
}
/*
* Loops through the list of windows, loaded-buffers or non-loaded-buffers
* (depending on flag) starting from buf and looking for a non-scanned
* buffer (other than curbuf). curbuf is special, if it is called with
* buf=curbuf then it has to be the first call for a given flag/expansion.
*
* Returns the buffer to scan, if any, otherwise returns curbuf -- Acevedo
*/
static buf_T *ins_compl_next_buf(buf_T *buf, int flag)
{
static win_T *wp;
if (flag == 'w') { /* just windows */
if (buf == curbuf) /* first call for this flag/expansion */
wp = curwin;
assert(wp);
while ((wp = (wp->w_next != NULL ? wp->w_next : firstwin)) != curwin
&& wp->w_buffer->b_scanned)
;
buf = wp->w_buffer;
} else
/* 'b' (just loaded buffers), 'u' (just non-loaded buffers) or 'U'
* (unlisted buffers)
* When completing whole lines skip unloaded buffers. */
while ((buf = (buf->b_next != NULL ? buf->b_next : firstbuf)) != curbuf
&& ((flag == 'U'
? buf->b_p_bl
: (!buf->b_p_bl
|| (buf->b_ml.ml_mfp == NULL) != (flag == 'u')))
|| buf->b_scanned))
;
return buf;
}
// Execute user defined complete function 'completefunc' or 'omnifunc', and
// get matches in "matches".
static void
expand_by_function(
int type, // CTRL_X_OMNI or CTRL_X_FUNCTION
char_u *base
)
{
list_T *matchlist = NULL;
dict_T *matchdict = NULL;
char_u *funcname;
pos_T pos;
win_T *curwin_save;
buf_T *curbuf_save;
typval_T rettv;
const int save_State = State;
assert(curbuf != NULL);
funcname = (type == CTRL_X_FUNCTION) ? curbuf->b_p_cfu : curbuf->b_p_ofu;
if (*funcname == NUL) {
return;
}
// Call 'completefunc' to obtain the list of matches.
typval_T args[3];
args[0].v_type = VAR_NUMBER;
args[1].v_type = VAR_STRING;
args[2].v_type = VAR_UNKNOWN;
args[0].vval.v_number = 0;
args[1].vval.v_string = base != NULL ? base : (char_u *)"";
pos = curwin->w_cursor;
curwin_save = curwin;
curbuf_save = curbuf;
// Call a function, which returns a list or dict.
if (call_vim_function(funcname, 2, args, &rettv) == OK) {
switch (rettv.v_type) {
case VAR_LIST:
matchlist = rettv.vval.v_list;
break;
case VAR_DICT:
matchdict = rettv.vval.v_dict;
break;
default:
// TODO(brammool): Give error message?
tv_clear(&rettv);
break;
}
}
if (curwin_save != curwin || curbuf_save != curbuf) {
EMSG(_(e_complwin));
goto theend;
}
curwin->w_cursor = pos; /* restore the cursor position */
validate_cursor();
if (!equalpos(curwin->w_cursor, pos)) {
EMSG(_(e_compldel));
goto theend;
}
if (matchlist != NULL)
ins_compl_add_list(matchlist);
else if (matchdict != NULL)
ins_compl_add_dict(matchdict);
theend:
// Restore State, it might have been changed.
State = save_State;
if (matchdict != NULL) {
tv_dict_unref(matchdict);
}
if (matchlist != NULL) {
tv_list_unref(matchlist);
}
}
/*
* Add completions from a list.
*/
static void ins_compl_add_list(list_T *const list)
{
int dir = compl_direction;
// Go through the List with matches and add each of them.
TV_LIST_ITER(list, li, {
if (ins_compl_add_tv(TV_LIST_ITEM_TV(li), dir) == OK) {
// If dir was BACKWARD then honor it just once.
dir = FORWARD;
} else if (did_emsg) {
break;
}
});
}
/*
* Add completions from a dict.
*/
static void ins_compl_add_dict(dict_T *dict)
{
dictitem_T *di_refresh;
dictitem_T *di_words;
// Check for optional "refresh" item.
compl_opt_refresh_always = false;
di_refresh = tv_dict_find(dict, S_LEN("refresh"));
if (di_refresh != NULL && di_refresh->di_tv.v_type == VAR_STRING) {
const char *v = (const char *)di_refresh->di_tv.vval.v_string;
if (v != NULL && strcmp(v, "always") == 0) {
compl_opt_refresh_always = true;
}
}
// Add completions from a "words" list.
di_words = tv_dict_find(dict, S_LEN("words"));
if (di_words != NULL && di_words->di_tv.v_type == VAR_LIST) {
ins_compl_add_list(di_words->di_tv.vval.v_list);
}
}
/// Add a match to the list of matches from VimL object
///
/// @param[in] tv Object to get matches from.
/// @param[in] dir Completion direction.
///
/// @return NOTDONE if the given string is already in the list of completions,
/// otherwise it is added to the list and OK is returned. FAIL will be
/// returned in case of error.
int ins_compl_add_tv(typval_T *const tv, const Direction dir)
FUNC_ATTR_NONNULL_ALL
{
const char *word;
bool dup = false;
bool empty = false;
int flags = 0;
char *(cptext[CPT_COUNT]);
if (tv->v_type == VAR_DICT && tv->vval.v_dict != NULL) {
word = tv_dict_get_string(tv->vval.v_dict, "word", false);
cptext[CPT_ABBR] = tv_dict_get_string(tv->vval.v_dict, "abbr", true);
cptext[CPT_MENU] = tv_dict_get_string(tv->vval.v_dict, "menu", true);
cptext[CPT_KIND] = tv_dict_get_string(tv->vval.v_dict, "kind", true);
cptext[CPT_INFO] = tv_dict_get_string(tv->vval.v_dict, "info", true);
cptext[CPT_USER_DATA] = tv_dict_get_string(tv->vval.v_dict,
"user_data", true);
if (tv_dict_get_number(tv->vval.v_dict, "icase")) {
flags |= CP_ICASE;
}
dup = (bool)tv_dict_get_number(tv->vval.v_dict, "dup");
empty = (bool)tv_dict_get_number(tv->vval.v_dict, "empty");
if (tv_dict_get_string(tv->vval.v_dict, "equal", false) != NULL
&& tv_dict_get_number(tv->vval.v_dict, "equal")) {
flags |= CP_EQUAL;
}
} else {
word = (const char *)tv_get_string_chk(tv);
memset(cptext, 0, sizeof(cptext));
}
if (word == NULL || (!empty && *word == NUL)) {
for (size_t i = 0; i < CPT_COUNT; i++) {
xfree(cptext[i]);
}
return FAIL;
}
return ins_compl_add((char_u *)word, -1, NULL,
(char_u **)cptext, true, dir, flags, dup);
}
// Get the next expansion(s), using "compl_pattern".
// The search starts at position "ini" in curbuf and in the direction
// compl_direction.
// When "compl_started" is false start at that position, otherwise continue
// where we stopped searching before.
// This may return before finding all the matches.
// Return the total number of matches or -1 if still unknown -- Acevedo
static int ins_compl_get_exp(pos_T *ini)
{
static pos_T first_match_pos;
static pos_T last_match_pos;
static char_u *e_cpt = (char_u *)""; // curr. entry in 'complete'
static int found_all = false; // Found all matches of a
// certain type.
static buf_T *ins_buf = NULL; // buffer being scanned
pos_T *pos;
char_u **matches;
int save_p_scs;
bool save_p_ws;
int save_p_ic;
int i;
int num_matches;
int len;
int found_new_match;
int type = ctrl_x_mode;
char_u *ptr;
char_u *dict = NULL;
int dict_f = 0;
int set_match_pos;
int l_ctrl_x_mode = ctrl_x_mode;
assert(curbuf != NULL);
if (!compl_started) {
FOR_ALL_BUFFERS(buf) {
buf->b_scanned = false;
}
found_all = FALSE;
ins_buf = curbuf;
e_cpt = (compl_cont_status & CONT_LOCAL)
? (char_u *)"." : curbuf->b_p_cpt;
last_match_pos = first_match_pos = *ini;
} else if (ins_buf != curbuf && !buf_valid(ins_buf)) {
ins_buf = curbuf; // In case the buffer was wiped out.
}
compl_old_match = compl_curr_match; // remember the last current match
pos = (compl_direction == FORWARD) ? &last_match_pos : &first_match_pos;
// For ^N/^P loop over all the flags/windows/buffers in 'complete'
for (;; ) {
found_new_match = FAIL;
set_match_pos = FALSE;
assert(l_ctrl_x_mode == ctrl_x_mode);
// For ^N/^P pick a new entry from e_cpt if compl_started is off,
// or if found_all says this entry is done. For ^X^L only use the
// entries from 'complete' that look in loaded buffers.
if ((l_ctrl_x_mode == CTRL_X_NORMAL
|| CTRL_X_MODE_LINE_OR_EVAL(l_ctrl_x_mode))
&& (!compl_started || found_all)) {
found_all = FALSE;
while (*e_cpt == ',' || *e_cpt == ' ')
e_cpt++;
if (*e_cpt == '.' && !curbuf->b_scanned) {
ins_buf = curbuf;
first_match_pos = *ini;
// Move the cursor back one character so that ^N can match the
// word immediately after the cursor.
if (ctrl_x_mode == CTRL_X_NORMAL && dec(&first_match_pos) < 0) {
// Move the cursor to after the last character in the
// buffer, so that word at start of buffer is found
// correctly.
first_match_pos.lnum = ins_buf->b_ml.ml_line_count;
first_match_pos.col = (colnr_T)STRLEN(ml_get(first_match_pos.lnum));
}
last_match_pos = first_match_pos;
type = 0;
// Remember the first match so that the loop stops when we
// wrap and come back there a second time.
set_match_pos = true;
} else if (vim_strchr((char_u *)"buwU", *e_cpt) != NULL
&& (ins_buf =
ins_compl_next_buf(ins_buf, *e_cpt)) != curbuf) {
// Scan a buffer, but not the current one.
if (ins_buf->b_ml.ml_mfp != NULL) { // loaded buffer
compl_started = true;
first_match_pos.col = last_match_pos.col = 0;
first_match_pos.lnum = ins_buf->b_ml.ml_line_count + 1;
last_match_pos.lnum = 0;
type = 0;
} else { // unloaded buffer, scan like dictionary
found_all = true;
if (ins_buf->b_fname == NULL) {
continue;
}
type = CTRL_X_DICTIONARY;
dict = ins_buf->b_fname;
dict_f = DICT_EXACT;
}
vim_snprintf((char *)IObuff, IOSIZE, _("Scanning: %s"),
ins_buf->b_fname == NULL
? buf_spname(ins_buf)
: ins_buf->b_sfname == NULL
? ins_buf->b_fname
: ins_buf->b_sfname);
(void)msg_trunc_attr(IObuff, true, HL_ATTR(HLF_R));
} else if (*e_cpt == NUL) {
break;
} else {
if (CTRL_X_MODE_LINE_OR_EVAL(l_ctrl_x_mode)) {
type = -1;
} else if (*e_cpt == 'k' || *e_cpt == 's') {
if (*e_cpt == 'k')
type = CTRL_X_DICTIONARY;
else
type = CTRL_X_THESAURUS;
if (*++e_cpt != ',' && *e_cpt != NUL) {
dict = e_cpt;
dict_f = DICT_FIRST;
}
} else if (*e_cpt == 'i')
type = CTRL_X_PATH_PATTERNS;
else if (*e_cpt == 'd')
type = CTRL_X_PATH_DEFINES;
else if (*e_cpt == ']' || *e_cpt == 't') {
type = CTRL_X_TAGS;
vim_snprintf((char *)IObuff, IOSIZE, _("Scanning tags."));
(void)msg_trunc_attr(IObuff, true, HL_ATTR(HLF_R));
} else {
type = -1;
}
// in any case e_cpt is advanced to the next entry
(void)copy_option_part(&e_cpt, IObuff, IOSIZE, ",");
found_all = TRUE;
if (type == -1)
continue;
}
}
// If complete() was called then compl_pattern has been reset.
// The following won't work then, bail out.
if (compl_pattern == NULL) {
break;
}
switch (type) {
case -1:
break;
case CTRL_X_PATH_PATTERNS:
case CTRL_X_PATH_DEFINES:
find_pattern_in_path(compl_pattern, compl_direction,
STRLEN(compl_pattern), FALSE, FALSE,
((type == CTRL_X_PATH_DEFINES
&& !(compl_cont_status & CONT_SOL))
? FIND_DEFINE
: FIND_ANY),
1L, ACTION_EXPAND, 1, MAXLNUM);
break;
case CTRL_X_DICTIONARY:
case CTRL_X_THESAURUS:
ins_compl_dictionaries(
dict != NULL ? dict
: (type == CTRL_X_THESAURUS
? (*curbuf->b_p_tsr == NUL
? p_tsr
: curbuf->b_p_tsr)
: (*curbuf->b_p_dict == NUL
? p_dict
: curbuf->b_p_dict)),
compl_pattern,
dict != NULL ? dict_f
: 0, type == CTRL_X_THESAURUS);
dict = NULL;
break;
case CTRL_X_TAGS:
// set p_ic according to p_ic, p_scs and pat for find_tags().
save_p_ic = p_ic;
p_ic = ignorecase(compl_pattern);
// Find up to TAG_MANY matches. Avoids that an enormous number
// of matches is found when compl_pattern is empty
g_tag_at_cursor = true;
if (find_tags(compl_pattern, &num_matches, &matches,
TAG_REGEXP | TAG_NAMES | TAG_NOIC | TAG_INS_COMP
| (l_ctrl_x_mode != CTRL_X_NORMAL ? TAG_VERBOSE : 0),
TAG_MANY, curbuf->b_ffname) == OK && num_matches > 0) {
ins_compl_add_matches(num_matches, matches, p_ic);
}
g_tag_at_cursor = false;
p_ic = save_p_ic;
break;
case CTRL_X_FILES:
if (expand_wildcards(1, &compl_pattern, &num_matches, &matches,
EW_FILE|EW_DIR|EW_ADDSLASH|EW_SILENT) == OK) {
// May change home directory back to "~".
tilde_replace(compl_pattern, num_matches, matches);
ins_compl_add_matches(num_matches, matches, p_fic || p_wic);
}
break;
case CTRL_X_CMDLINE:
if (expand_cmdline(&compl_xp, compl_pattern,
(int)STRLEN(compl_pattern),
&num_matches, &matches) == EXPAND_OK)
ins_compl_add_matches(num_matches, matches, FALSE);
break;
case CTRL_X_FUNCTION:
case CTRL_X_OMNI:
expand_by_function(type, compl_pattern);
break;
case CTRL_X_SPELL:
num_matches = expand_spelling(first_match_pos.lnum,
compl_pattern, &matches);
if (num_matches > 0)
ins_compl_add_matches(num_matches, matches, p_ic);
break;
default: // normal ^P/^N and ^X^L
// If 'infercase' is set, don't use 'smartcase' here
save_p_scs = p_scs;
assert(ins_buf);
if (ins_buf->b_p_inf)
p_scs = FALSE;
// Buffers other than curbuf are scanned from the beginning or the
// end but never from the middle, thus setting nowrapscan in this
// buffers is a good idea, on the other hand, we always set
// wrapscan for curbuf to avoid missing matches -- Acevedo,Webb
save_p_ws = p_ws;
if (ins_buf != curbuf)
p_ws = false;
else if (*e_cpt == '.')
p_ws = true;
for (;; ) {
bool cont_s_ipos = false;
msg_silent++; // Don't want messages for wrapscan.
// CTRL_X_MODE_LINE_OR_EVAL(l_ctrl_x_mode) || word-wise search that
// has added a word that was at the beginning of the line.
if (CTRL_X_MODE_LINE_OR_EVAL(l_ctrl_x_mode)
|| (compl_cont_status & CONT_SOL)) {
found_new_match = search_for_exact_line(ins_buf, pos,
compl_direction,
compl_pattern);
} else {
found_new_match = searchit(NULL, ins_buf, pos, NULL,
compl_direction,
compl_pattern, 1L,
SEARCH_KEEP + SEARCH_NFMSG,
RE_LAST, NULL);
}
msg_silent--;
if (!compl_started || set_match_pos) {
// set "compl_started" even on fail
compl_started = true;
first_match_pos = *pos;
last_match_pos = *pos;
set_match_pos = false;
} else if (first_match_pos.lnum == last_match_pos.lnum
&& first_match_pos.col == last_match_pos.col) {
found_new_match = FAIL;
}
if (found_new_match == FAIL) {
if (ins_buf == curbuf)
found_all = TRUE;
break;
}
// when ADDING, the text before the cursor matches, skip it
if ((compl_cont_status & CONT_ADDING) && ins_buf == curbuf
&& ini->lnum == pos->lnum
&& ini->col == pos->col) {
continue;
}
ptr = ml_get_buf(ins_buf, pos->lnum, false) + pos->col;
if (CTRL_X_MODE_LINE_OR_EVAL(l_ctrl_x_mode)) {
if (compl_cont_status & CONT_ADDING) {
if (pos->lnum >= ins_buf->b_ml.ml_line_count) {
continue;
}
ptr = ml_get_buf(ins_buf, pos->lnum + 1, false);
if (!p_paste) {
ptr = skipwhite(ptr);
}
}
len = (int)STRLEN(ptr);
} else {
char_u *tmp_ptr = ptr;
if (compl_cont_status & CONT_ADDING) {
tmp_ptr += compl_length;
// Skip if already inside a word.
if (vim_iswordp(tmp_ptr)) {
continue;
}
// Find start of next word.
tmp_ptr = find_word_start(tmp_ptr);
}
// Find end of this word.
tmp_ptr = find_word_end(tmp_ptr);
len = (int)(tmp_ptr - ptr);
if ((compl_cont_status & CONT_ADDING)
&& len == compl_length) {
if (pos->lnum < ins_buf->b_ml.ml_line_count) {
// Try next line, if any. the new word will be "join" as if the
// normal command "J" was used. IOSIZE is always greater than
// compl_length, so the next STRNCPY always works -- Acevedo
STRNCPY(IObuff, ptr, len);
ptr = ml_get_buf(ins_buf, pos->lnum + 1, false);
tmp_ptr = ptr = skipwhite(ptr);
// Find start of next word.
tmp_ptr = find_word_start(tmp_ptr);
// Find end of next word.
tmp_ptr = find_word_end(tmp_ptr);
if (tmp_ptr > ptr) {
if (*ptr != ')' && IObuff[len - 1] != TAB) {
if (IObuff[len - 1] != ' ') {
IObuff[len++] = ' ';
}
// IObuf =~ "\k.* ", thus len >= 2
if (p_js
&& (IObuff[len - 2] == '.'
|| IObuff[len - 2] == '?'
|| IObuff[len - 2] == '!')) {
IObuff[len++] = ' ';
}
}
// copy as much as possible of the new word
if (tmp_ptr - ptr >= IOSIZE - len) {
tmp_ptr = ptr + IOSIZE - len - 1;
}
STRLCPY(IObuff + len, ptr, IOSIZE - len);
len += (int)(tmp_ptr - ptr);
cont_s_ipos = true;
}
IObuff[len] = NUL;
ptr = IObuff;
}
if (len == compl_length)
continue;
}
}
if (ins_compl_add_infercase(
ptr, len, p_ic, ins_buf == curbuf ? NULL : ins_buf->b_sfname,
0, cont_s_ipos) != NOTDONE) {
found_new_match = OK;
break;
}
}
p_scs = save_p_scs;
p_ws = save_p_ws;
}
// check if compl_curr_match has changed, (e.g. other type of
// expansion added something)
if (type != 0 && compl_curr_match != compl_old_match) {
found_new_match = OK;
}
// break the loop for specialized modes (use 'complete' just for the
// generic l_ctrl_x_mode == CTRL_X_NORMAL) or when we've found a new match
if ((l_ctrl_x_mode != CTRL_X_NORMAL
&& !CTRL_X_MODE_LINE_OR_EVAL(l_ctrl_x_mode))
|| found_new_match != FAIL) {
if (got_int)
break;
// Fill the popup menu as soon as possible.
if (type != -1) {
ins_compl_check_keys(0, false);
}
if ((l_ctrl_x_mode != CTRL_X_NORMAL
&& !CTRL_X_MODE_LINE_OR_EVAL(l_ctrl_x_mode))
|| compl_interrupted) {
break;
}
compl_started = true;
} else {
// Mark a buffer scanned when it has been scanned completely
if (type == 0 || type == CTRL_X_PATH_PATTERNS) {
assert(ins_buf);
ins_buf->b_scanned = true;
}
compl_started = false;
}
}
compl_started = true;
if ((l_ctrl_x_mode == CTRL_X_NORMAL
|| CTRL_X_MODE_LINE_OR_EVAL(l_ctrl_x_mode))
&& *e_cpt == NUL) { // Got to end of 'complete'
found_new_match = FAIL;
}
i = -1; // total of matches, unknown
if (found_new_match == FAIL
|| (l_ctrl_x_mode != CTRL_X_NORMAL
&& !CTRL_X_MODE_LINE_OR_EVAL(l_ctrl_x_mode))) {
i = ins_compl_make_cyclic();
}
if (compl_old_match != NULL) {
// If several matches were added (FORWARD) or the search failed and has
// just been made cyclic then we have to move compl_curr_match to the
// next or previous entry (if any) -- Acevedo
compl_curr_match = compl_direction == FORWARD
? compl_old_match->cp_next
: compl_old_match->cp_prev;
if (compl_curr_match == NULL) {
compl_curr_match = compl_old_match;
}
}
return i;
}
// Delete the old text being completed.
static void ins_compl_delete(void)
{
int col;
// In insert mode: Delete the typed part.
// In replace mode: Put the old characters back, if any.
col = compl_col + (compl_cont_status & CONT_ADDING ? compl_length : 0);
if ((int)curwin->w_cursor.col > col) {
if (stop_arrow() == FAIL) {
return;
}
backspace_until_column(col);
}
// TODO(vim): is this sufficient for redrawing? Redrawing everything
// causes flicker, thus we can't do that.
changed_cline_bef_curs();
// clear v:completed_item
dict_T *const d = tv_dict_alloc();
d->dv_lock = VAR_FIXED;
set_vim_var_dict(VV_COMPLETED_ITEM, d);
}
// Insert the new text being completed.
// "in_compl_func" is TRUE when called from complete_check().
static void ins_compl_insert(int in_compl_func)
{
ins_bytes(compl_shown_match->cp_str + ins_compl_len());
compl_used_match = !(compl_shown_match->cp_flags & CP_ORIGINAL_TEXT);
dict_T *dict = ins_compl_dict_alloc(compl_shown_match);
set_vim_var_dict(VV_COMPLETED_ITEM, dict);
if (!in_compl_func) {
compl_curr_match = compl_shown_match;
}
}
// Convert to complete item dict
static dict_T *ins_compl_dict_alloc(compl_T *match)
{
// { word, abbr, menu, kind, info }
dict_T *dict = tv_dict_alloc();
dict->dv_lock = VAR_FIXED;
tv_dict_add_str(
dict, S_LEN("word"),
(const char *)EMPTY_IF_NULL(match->cp_str));
tv_dict_add_str(
dict, S_LEN("abbr"),
(const char *)EMPTY_IF_NULL(match->cp_text[CPT_ABBR]));
tv_dict_add_str(
dict, S_LEN("menu"),
(const char *)EMPTY_IF_NULL(match->cp_text[CPT_MENU]));
tv_dict_add_str(
dict, S_LEN("kind"),
(const char *)EMPTY_IF_NULL(match->cp_text[CPT_KIND]));
tv_dict_add_str(
dict, S_LEN("info"),
(const char *)EMPTY_IF_NULL(match->cp_text[CPT_INFO]));
tv_dict_add_str(
dict, S_LEN("user_data"),
(const char *)EMPTY_IF_NULL(match->cp_text[CPT_USER_DATA]));
return dict;
}
/*
* Fill in the next completion in the current direction.
* If "allow_get_expansion" is TRUE, then we may call ins_compl_get_exp() to
* get more completions. If it is FALSE, then we just do nothing when there
* are no more completions in a given direction. The latter case is used when
* we are still in the middle of finding completions, to allow browsing
* through the ones found so far.
* Return the total number of matches, or -1 if still unknown -- webb.
*
* compl_curr_match is currently being used by ins_compl_get_exp(), so we use
* compl_shown_match here.
*
* Note that this function may be called recursively once only. First with
* "allow_get_expansion" TRUE, which calls ins_compl_get_exp(), which in turn
* calls this function with "allow_get_expansion" FALSE.
*/
static int
ins_compl_next (
int allow_get_expansion,
int count, // Repeat completion this many times; should
// be at least 1
int insert_match, // Insert the newly selected match
int in_compl_func // Called from complete_check()
)
{
int num_matches = -1;
int todo = count;
compl_T *found_compl = NULL;
int found_end = FALSE;
int advance;
const bool started = compl_started;
/* When user complete function return -1 for findstart which is next
* time of 'always', compl_shown_match become NULL. */
if (compl_shown_match == NULL)
return -1;
if (compl_leader != NULL
&& (compl_shown_match->cp_flags & CP_ORIGINAL_TEXT) == 0) {
// Set "compl_shown_match" to the actually shown match, it may differ
// when "compl_leader" is used to omit some of the matches.
while (!ins_compl_equal(compl_shown_match,
compl_leader, STRLEN(compl_leader))
&& compl_shown_match->cp_next != NULL
&& compl_shown_match->cp_next != compl_first_match) {
compl_shown_match = compl_shown_match->cp_next;
}
/* If we didn't find it searching forward, and compl_shows_dir is
* backward, find the last match. */
if (compl_shows_dir == BACKWARD
&& !ins_compl_equal(compl_shown_match,
compl_leader, (int)STRLEN(compl_leader))
&& (compl_shown_match->cp_next == NULL
|| compl_shown_match->cp_next == compl_first_match)) {
while (!ins_compl_equal(compl_shown_match,
compl_leader, (int)STRLEN(compl_leader))
&& compl_shown_match->cp_prev != NULL
&& compl_shown_match->cp_prev != compl_first_match)
compl_shown_match = compl_shown_match->cp_prev;
}
}
if (allow_get_expansion && insert_match
&& (!(compl_get_longest || compl_restarting) || compl_used_match))
/* Delete old text to be replaced */
ins_compl_delete();
/* When finding the longest common text we stick at the original text,
* don't let CTRL-N or CTRL-P move to the first match. */
advance = count != 1 || !allow_get_expansion || !compl_get_longest;
/* When restarting the search don't insert the first match either. */
if (compl_restarting) {
advance = FALSE;
compl_restarting = FALSE;
}
/* Repeat this for when <PageUp> or <PageDown> is typed. But don't wrap
* around. */
while (--todo >= 0) {
if (compl_shows_dir == FORWARD && compl_shown_match->cp_next != NULL) {
compl_shown_match = compl_shown_match->cp_next;
found_end = (compl_first_match != NULL
&& (compl_shown_match->cp_next == compl_first_match
|| compl_shown_match == compl_first_match));
} else if (compl_shows_dir == BACKWARD
&& compl_shown_match->cp_prev != NULL) {
found_end = (compl_shown_match == compl_first_match);
compl_shown_match = compl_shown_match->cp_prev;
found_end |= (compl_shown_match == compl_first_match);
} else {
if (!allow_get_expansion) {
if (advance) {
if (compl_shows_dir == BACKWARD)
compl_pending -= todo + 1;
else
compl_pending += todo + 1;
}
return -1;
}
if (!compl_no_select && advance) {
if (compl_shows_dir == BACKWARD)
--compl_pending;
else
++compl_pending;
}
/* Find matches. */
num_matches = ins_compl_get_exp(&compl_startpos);
/* handle any pending completions */
while (compl_pending != 0 && compl_direction == compl_shows_dir
&& advance) {
if (compl_pending > 0 && compl_shown_match->cp_next != NULL) {
compl_shown_match = compl_shown_match->cp_next;
--compl_pending;
}
if (compl_pending < 0 && compl_shown_match->cp_prev != NULL) {
compl_shown_match = compl_shown_match->cp_prev;
++compl_pending;
} else
break;
}
found_end = FALSE;
}
if ((compl_shown_match->cp_flags & CP_ORIGINAL_TEXT) == 0
&& compl_leader != NULL
&& !ins_compl_equal(compl_shown_match,
compl_leader, STRLEN(compl_leader))) {
todo++;
} else {
// Remember a matching item.
found_compl = compl_shown_match;
}
/* Stop at the end of the list when we found a usable match. */
if (found_end) {
if (found_compl != NULL) {
compl_shown_match = found_compl;
break;
}
todo = 1; /* use first usable match after wrapping around */
}
}
/* Insert the text of the new completion, or the compl_leader. */
if (compl_no_insert && !started) {
ins_bytes(compl_orig_text + ins_compl_len());
compl_used_match = false;
} else if (insert_match) {
if (!compl_get_longest || compl_used_match) {
ins_compl_insert(in_compl_func);
} else {
ins_bytes(compl_leader + ins_compl_len());
}
} else {
compl_used_match = false;
}
if (!allow_get_expansion) {
// redraw to show the user what was inserted
update_screen(0);
// display the updated popup menu
ins_compl_show_pum();
// Delete old text to be replaced, since we're still searching and
// don't want to match ourselves!
ins_compl_delete();
}
/* Enter will select a match when the match wasn't inserted and the popup
* menu is visible. */
if (compl_no_insert && !started) {
compl_enter_selects = TRUE;
} else {
compl_enter_selects = !insert_match && compl_match_array != NULL;
}
/*
* Show the file name for the match (if any)
* Truncate the file name to avoid a wait for return.
*/
if (compl_shown_match->cp_fname != NULL) {
char *lead = _("match in file");
int space = sc_col - vim_strsize((char_u *)lead) - 2;
char_u *s;
char_u *e;
if (space > 0) {
// We need the tail that fits. With double-byte encoding going
// back from the end is very slow, thus go from the start and keep
// the text that fits in "space" between "s" and "e".
for (s = e = compl_shown_match->cp_fname; *e != NUL; MB_PTR_ADV(e)) {
space -= ptr2cells(e);
while (space < 0) {
space += ptr2cells(s);
MB_PTR_ADV(s);
}
}
vim_snprintf((char *)IObuff, IOSIZE, "%s %s%s", lead,
s > compl_shown_match->cp_fname ? "<" : "", s);
msg(IObuff);
redraw_cmdline = false; // don't overwrite!
}
}
return num_matches;
}
void pum_ext_select_item(int item, bool insert, bool finish)
{
if (!pum_visible() || item < -1 || item >= compl_match_arraysize) {
return;
}
pum_want.active = true;
pum_want.item = item;
pum_want.insert = insert;
pum_want.finish = finish;
}
// Call this while finding completions, to check whether the user has hit a key
// that should change the currently displayed completion, or exit completion
// mode. Also, when compl_pending is not zero, show a completion as soon as
// possible. -- webb
// "frequency" specifies out of how many calls we actually check.
// "in_compl_func" is TRUE when called from complete_check(), don't set
// compl_curr_match.
void ins_compl_check_keys(int frequency, int in_compl_func)
{
static int count = 0;
// Don't check when reading keys from a script, :normal or feedkeys().
// That would break the test scripts. But do check for keys when called
// from complete_check().
if (!in_compl_func && (using_script() || ex_normal_busy)) {
return;
}
/* Only do this at regular intervals */
if (++count < frequency)
return;
count = 0;
/* Check for a typed key. Do use mappings, otherwise vim_is_ctrl_x_key()
* can't do its work correctly. */
int c = vpeekc_any();
if (c != NUL) {
if (vim_is_ctrl_x_key(c) && c != Ctrl_X && c != Ctrl_R) {
c = safe_vgetc(); /* Eat the character */
compl_shows_dir = ins_compl_key2dir(c);
(void)ins_compl_next(false, ins_compl_key2count(c),
c != K_UP && c != K_DOWN, in_compl_func);
} else {
/* Need to get the character to have KeyTyped set. We'll put it
* back with vungetc() below. But skip K_IGNORE. */
c = safe_vgetc();
if (c != K_IGNORE) {
/* Don't interrupt completion when the character wasn't typed,
* e.g., when doing @q to replay keys. */
if (c != Ctrl_R && KeyTyped)
compl_interrupted = TRUE;
vungetc(c);
}
}
}
if (compl_pending != 0 && !got_int && !compl_no_insert) {
int todo = compl_pending > 0 ? compl_pending : -compl_pending;
compl_pending = 0;
(void)ins_compl_next(false, todo, true, in_compl_func);
}
}
/*
* Decide the direction of Insert mode complete from the key typed.
* Returns BACKWARD or FORWARD.
*/
static int ins_compl_key2dir(int c)
{
if (c == K_EVENT || c == K_COMMAND) {
return pum_want.item < pum_selected_item ? BACKWARD : FORWARD;
}
if (c == Ctrl_P || c == Ctrl_L
|| c == K_PAGEUP || c == K_KPAGEUP
|| c == K_S_UP || c == K_UP) {
return BACKWARD;
}
return FORWARD;
}
/// Check that "c" is a valid completion key only while the popup menu is shown
///
/// @param c character to check
static bool ins_compl_pum_key(int c)
FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
return pum_visible() && (c == K_PAGEUP || c == K_KPAGEUP || c == K_S_UP
|| c == K_PAGEDOWN || c == K_KPAGEDOWN
|| c == K_S_DOWN || c == K_UP || c == K_DOWN);
}
/*
* Decide the number of completions to move forward.
* Returns 1 for most keys, height of the popup menu for page-up/down keys.
*/
static int ins_compl_key2count(int c)
{
int h;
if (c == K_EVENT || c == K_COMMAND) {
int offset = pum_want.item - pum_selected_item;
return abs(offset);
}
if (ins_compl_pum_key(c) && c != K_UP && c != K_DOWN) {
h = pum_get_height();
if (h > 3)
h -= 2; /* keep some context */
return h;
}
return 1;
}
/// Check that completion with "c" should insert the match, false if only
/// to change the currently selected completion.
///
/// @param c character to check
static bool ins_compl_use_match(int c)
FUNC_ATTR_CONST FUNC_ATTR_WARN_UNUSED_RESULT
{
switch (c) {
case K_UP:
case K_DOWN:
case K_PAGEDOWN:
case K_KPAGEDOWN:
case K_S_DOWN:
case K_PAGEUP:
case K_KPAGEUP:
case K_S_UP:
return false;
case K_EVENT:
case K_COMMAND:
return pum_want.active && pum_want.insert;
}
return true;
}
/*
* Do Insert mode completion.
* Called when character "c" was typed, which has a meaning for completion.
* Returns OK if completion was done, FAIL if something failed.
*/
static int ins_complete(int c, bool enable_pum)
{
char_u *line;
int startcol = 0; /* column where searched text starts */
colnr_T curs_col; /* cursor column */
int n;
int save_w_wrow;
int save_w_leftcol;
int insert_match;
const bool save_did_ai = did_ai;
int flags = CP_ORIGINAL_TEXT;
compl_direction = ins_compl_key2dir(c);
insert_match = ins_compl_use_match(c);
if (!compl_started) {
/* First time we hit ^N or ^P (in a row, I mean) */
did_ai = false;
did_si = false;
can_si = false;
can_si_back = false;
if (stop_arrow() == FAIL) {
return FAIL;
}
line = ml_get(curwin->w_cursor.lnum);
curs_col = curwin->w_cursor.col;
compl_pending = 0;
/* If this same ctrl_x_mode has been interrupted use the text from
* "compl_startpos" to the cursor as a pattern to add a new word
* instead of expand the one before the cursor, in word-wise if
* "compl_startpos" is not in the same line as the cursor then fix it
* (the line has been split because it was longer than 'tw'). if SOL
* is set then skip the previous pattern, a word at the beginning of
* the line has been inserted, we'll look for that -- Acevedo. */
if ((compl_cont_status & CONT_INTRPT) == CONT_INTRPT
&& compl_cont_mode == ctrl_x_mode) {
/*
* it is a continued search
*/
compl_cont_status &= ~CONT_INTRPT; // remove INTRPT
if (ctrl_x_mode == CTRL_X_NORMAL
|| ctrl_x_mode == CTRL_X_PATH_PATTERNS
|| ctrl_x_mode == CTRL_X_PATH_DEFINES) {
if (compl_startpos.lnum != curwin->w_cursor.lnum) {
/* line (probably) wrapped, set compl_startpos to the
* first non_blank in the line, if it is not a wordchar
* include it to get a better pattern, but then we don't
* want the "\\<" prefix, check it bellow */
compl_col = (colnr_T)getwhitecols(line);
compl_startpos.col = compl_col;
compl_startpos.lnum = curwin->w_cursor.lnum;
compl_cont_status &= ~CONT_SOL; /* clear SOL if present */
} else {
/* S_IPOS was set when we inserted a word that was at the
* beginning of the line, which means that we'll go to SOL
* mode but first we need to redefine compl_startpos */
if (compl_cont_status & CONT_S_IPOS) {
compl_cont_status |= CONT_SOL;
compl_startpos.col = (colnr_T)(skipwhite(
line + compl_length
+ compl_startpos.col) - line);
}
compl_col = compl_startpos.col;
}
compl_length = curwin->w_cursor.col - (int)compl_col;
/* IObuff is used to add a "word from the next line" would we
* have enough space? just being paranoid */
#define MIN_SPACE 75
if (compl_length > (IOSIZE - MIN_SPACE)) {
compl_cont_status &= ~CONT_SOL;
compl_length = (IOSIZE - MIN_SPACE);
compl_col = curwin->w_cursor.col - compl_length;
}
compl_cont_status |= CONT_ADDING | CONT_N_ADDS;
if (compl_length < 1)
compl_cont_status &= CONT_LOCAL;
} else if (CTRL_X_MODE_LINE_OR_EVAL(ctrl_x_mode)) {
compl_cont_status = CONT_ADDING | CONT_N_ADDS;
} else
compl_cont_status = 0;
} else
compl_cont_status &= CONT_LOCAL;
if (!(compl_cont_status & CONT_ADDING)) { /* normal expansion */
compl_cont_mode = ctrl_x_mode;
if (ctrl_x_mode != CTRL_X_NORMAL) {
// Remove LOCAL if ctrl_x_mode != CTRL_X_NORMAL
compl_cont_status = 0;
}
compl_cont_status |= CONT_N_ADDS;
compl_startpos = curwin->w_cursor;
startcol = (int)curs_col;
compl_col = 0;
}
// Work out completion pattern and original text -- webb
if (ctrl_x_mode == CTRL_X_NORMAL || (ctrl_x_mode & CTRL_X_WANT_IDENT)) {
if ((compl_cont_status & CONT_SOL)
|| ctrl_x_mode == CTRL_X_PATH_DEFINES) {
if (!(compl_cont_status & CONT_ADDING)) {
while (--startcol >= 0 && vim_isIDc(line[startcol]))
;
compl_col += ++startcol;
compl_length = curs_col - startcol;
}
if (p_ic)
compl_pattern = str_foldcase(line + compl_col, compl_length, NULL, 0);
else
compl_pattern = vim_strnsave(line + compl_col, compl_length);
} else if (compl_cont_status & CONT_ADDING) {
char_u *prefix = (char_u *)"\\<";
/* we need up to 2 extra chars for the prefix */
compl_pattern = xmalloc(quote_meta(NULL, line + compl_col,
compl_length) + 2);
if (!vim_iswordp(line + compl_col)
|| (compl_col > 0
&& (
vim_iswordp(mb_prevptr(line, line + compl_col))
)))
prefix = (char_u *)"";
STRCPY((char *)compl_pattern, prefix);
(void)quote_meta(compl_pattern + STRLEN(prefix),
line + compl_col, compl_length);
} else if (--startcol < 0
|| !vim_iswordp(mb_prevptr(line, line + startcol + 1))) {
// Match any word of at least two chars
compl_pattern = vim_strsave((char_u *)"\\<\\k\\k");
compl_col += curs_col;
compl_length = 0;
} else {
// Search the point of change class of multibyte character
// or not a word single byte character backward.
startcol -= utf_head_off(line, line + startcol);
int base_class = mb_get_class(line + startcol);
while (--startcol >= 0) {
int head_off = utf_head_off(line, line + startcol);
if (base_class != mb_get_class(line + startcol - head_off)) {
break;
}
startcol -= head_off;
}
compl_col += ++startcol;
compl_length = (int)curs_col - startcol;
if (compl_length == 1) {
/* Only match word with at least two chars -- webb
* there's no need to call quote_meta,
* xmalloc(7) is enough -- Acevedo
*/
compl_pattern = xmalloc(7);
STRCPY((char *)compl_pattern, "\\<");
(void)quote_meta(compl_pattern + 2, line + compl_col, 1);
STRCAT((char *)compl_pattern, "\\k");
} else {
compl_pattern = xmalloc(quote_meta(NULL, line + compl_col,
compl_length) + 2);
STRCPY((char *)compl_pattern, "\\<");
(void)quote_meta(compl_pattern + 2, line + compl_col,
compl_length);
}
}
} else if (CTRL_X_MODE_LINE_OR_EVAL(ctrl_x_mode)) {
compl_col = (colnr_T)getwhitecols(line);
compl_length = (int)curs_col - (int)compl_col;
if (compl_length < 0) /* cursor in indent: empty pattern */
compl_length = 0;
if (p_ic)
compl_pattern = str_foldcase(line + compl_col, compl_length, NULL, 0);
else
compl_pattern = vim_strnsave(line + compl_col, compl_length);
} else if (ctrl_x_mode == CTRL_X_FILES) {
/* Go back to just before the first filename character. */
if (startcol > 0) {
char_u *p = line + startcol;
MB_PTR_BACK(line, p);
while (p > line && vim_isfilec(PTR2CHAR(p))) {
MB_PTR_BACK(line, p);
}
if (p == line && vim_isfilec(PTR2CHAR(p))) {
startcol = 0;
} else {
startcol = (int)(p - line) + 1;
}
}
compl_col += startcol;
compl_length = (int)curs_col - startcol;
compl_pattern = addstar(line + compl_col, compl_length, EXPAND_FILES);
} else if (ctrl_x_mode == CTRL_X_CMDLINE) {
compl_pattern = vim_strnsave(line, curs_col);
set_cmd_context(&compl_xp, compl_pattern,
(int)STRLEN(compl_pattern), curs_col, false);
if (compl_xp.xp_context == EXPAND_UNSUCCESSFUL
|| compl_xp.xp_context == EXPAND_NOTHING) {
// No completion possible, use an empty pattern to get a
// "pattern not found" message.
compl_col = curs_col;
} else {
compl_col = (int)(compl_xp.xp_pattern - compl_pattern);
}
compl_length = curs_col - compl_col;
} else if (ctrl_x_mode == CTRL_X_FUNCTION || ctrl_x_mode ==
CTRL_X_OMNI) {
/*
* Call user defined function 'completefunc' with "a:findstart"
* set to 1 to obtain the length of text to use for completion.
*/
char_u *funcname;
pos_T pos;
win_T *curwin_save;
buf_T *curbuf_save;
const int save_State = State;
/* Call 'completefunc' or 'omnifunc' and get pattern length as a
* string */
funcname = ctrl_x_mode == CTRL_X_FUNCTION
? curbuf->b_p_cfu : curbuf->b_p_ofu;
if (*funcname == NUL) {
EMSG2(_(e_notset), ctrl_x_mode == CTRL_X_FUNCTION
? "completefunc" : "omnifunc");
// restore did_ai, so that adding comment leader works
did_ai = save_did_ai;
return FAIL;
}
typval_T args[3];
args[0].v_type = VAR_NUMBER;
args[1].v_type = VAR_STRING;
args[2].v_type = VAR_UNKNOWN;
args[0].vval.v_number = 1;
args[1].vval.v_string = (char_u *)"";
pos = curwin->w_cursor;
curwin_save = curwin;
curbuf_save = curbuf;
int col = call_func_retnr(funcname, 2, args);
State = save_State;
if (curwin_save != curwin || curbuf_save != curbuf) {
EMSG(_(e_complwin));
return FAIL;
}
curwin->w_cursor = pos; /* restore the cursor position */
validate_cursor();
if (!equalpos(curwin->w_cursor, pos)) {
EMSG(_(e_compldel));
return FAIL;
}
/* Return value -2 means the user complete function wants to
* cancel the complete without an error.
* Return value -3 does the same as -2 and leaves CTRL-X mode.*/
if (col == -2)
return FAIL;
if (col == -3) {
ctrl_x_mode = CTRL_X_NORMAL;
edit_submode = NULL;
if (!shortmess(SHM_COMPLETIONMENU)) {
msg_clr_cmdline();
}
return FAIL;
}
/*
* Reset extended parameters of completion, when start new
* completion.
*/
compl_opt_refresh_always = FALSE;
if (col < 0)
col = curs_col;
compl_col = col;
if (compl_col > curs_col)
compl_col = curs_col;
/* Setup variables for completion. Need to obtain "line" again,
* it may have become invalid. */
line = ml_get(curwin->w_cursor.lnum);
compl_length = curs_col - compl_col;
compl_pattern = vim_strnsave(line + compl_col, compl_length);
} else if (ctrl_x_mode == CTRL_X_SPELL) {
if (spell_bad_len > 0) {
assert(spell_bad_len <= INT_MAX);
compl_col = curs_col - (int)spell_bad_len;
}
else
compl_col = spell_word_start(startcol);
if (compl_col >= (colnr_T)startcol) {
compl_length = 0;
compl_col = curs_col;
} else {
spell_expand_check_cap(compl_col);
compl_length = (int)curs_col - compl_col;
}
/* Need to obtain "line" again, it may have become invalid. */
line = ml_get(curwin->w_cursor.lnum);
compl_pattern = vim_strnsave(line + compl_col, compl_length);
} else {
internal_error("ins_complete()");
return FAIL;
}
if (compl_cont_status & CONT_ADDING) {
edit_submode_pre = (char_u *)_(" Adding");
if (CTRL_X_MODE_LINE_OR_EVAL(ctrl_x_mode)) {
/* Insert a new line, keep indentation but ignore 'comments' */
char_u *old = curbuf->b_p_com;
curbuf->b_p_com = (char_u *)"";
compl_startpos.lnum = curwin->w_cursor.lnum;
compl_startpos.col = compl_col;
ins_eol('\r');
curbuf->b_p_com = old;
compl_length = 0;
compl_col = curwin->w_cursor.col;
}
} else {
edit_submode_pre = NULL;
compl_startpos.col = compl_col;
}
if (compl_cont_status & CONT_LOCAL)
edit_submode = (char_u *)_(ctrl_x_msgs[CTRL_X_LOCAL_MSG]);
else
edit_submode = (char_u *)_(CTRL_X_MSG(ctrl_x_mode));
/* If any of the original typed text has been changed we need to fix
* the redo buffer. */
ins_compl_fixRedoBufForLeader(NULL);
/* Always add completion for the original text. */
xfree(compl_orig_text);
compl_orig_text = vim_strnsave(line + compl_col, compl_length);
if (p_ic) {
flags |= CP_ICASE;
}
if (ins_compl_add(compl_orig_text, -1, NULL, NULL, false, 0,
flags, false) != OK) {
XFREE_CLEAR(compl_pattern);
XFREE_CLEAR(compl_orig_text);
return FAIL;
}
/* showmode might reset the internal line pointers, so it must
* be called before line = ml_get(), or when this address is no
* longer needed. -- Acevedo.
*/
edit_submode_extra = (char_u *)_("-- Searching...");
edit_submode_highl = HLF_COUNT;
showmode();
edit_submode_extra = NULL;
ui_flush();
} else if (insert_match && stop_arrow() == FAIL) {
return FAIL;
}
compl_shown_match = compl_curr_match;
compl_shows_dir = compl_direction;
/*
* Find next match (and following matches).
*/
save_w_wrow = curwin->w_wrow;
save_w_leftcol = curwin->w_leftcol;
n = ins_compl_next(true, ins_compl_key2count(c), insert_match, false);
if (n > 1) /* all matches have been found */
compl_matches = n;
compl_curr_match = compl_shown_match;
compl_direction = compl_shows_dir;
/* Eat the ESC that vgetc() returns after a CTRL-C to avoid leaving Insert
* mode. */
if (got_int && !global_busy) {
(void)vgetc();
got_int = FALSE;
}
/* we found no match if the list has only the "compl_orig_text"-entry */
if (compl_first_match == compl_first_match->cp_next) {
edit_submode_extra = (compl_cont_status & CONT_ADDING)
&& compl_length > 1
? (char_u *)_(e_hitend) : (char_u *)_(e_patnotf);
edit_submode_highl = HLF_E;
/* remove N_ADDS flag, so next ^X<> won't try to go to ADDING mode,
* because we couldn't expand anything at first place, but if we used
* ^P, ^N, ^X^I or ^X^D we might want to add-expand a single-char-word
* (such as M in M'exico) if not tried already. -- Acevedo */
if (compl_length > 1
|| (compl_cont_status & CONT_ADDING)
|| (ctrl_x_mode != CTRL_X_NORMAL
&& ctrl_x_mode != CTRL_X_PATH_PATTERNS
&& ctrl_x_mode != CTRL_X_PATH_DEFINES)) {
compl_cont_status &= ~CONT_N_ADDS;
}
}
if (compl_curr_match->cp_flags & CP_CONT_S_IPOS) {
compl_cont_status |= CONT_S_IPOS;
} else {
compl_cont_status &= ~CONT_S_IPOS;
}
if (edit_submode_extra == NULL) {
if (compl_curr_match->cp_flags & CP_ORIGINAL_TEXT) {
edit_submode_extra = (char_u *)_("Back at original");
edit_submode_highl = HLF_W;
} else if (compl_cont_status & CONT_S_IPOS) {
edit_submode_extra = (char_u *)_("Word from other line");
edit_submode_highl = HLF_COUNT;
} else if (compl_curr_match->cp_next == compl_curr_match->cp_prev) {
edit_submode_extra = (char_u *)_("The only match");
edit_submode_highl = HLF_COUNT;
} else {
/* Update completion sequence number when needed. */
if (compl_curr_match->cp_number == -1) {
int number = 0;
compl_T *match;
if (compl_direction == FORWARD) {
/* search backwards for the first valid (!= -1) number.
* This should normally succeed already at the first loop
* cycle, so it's fast! */
for (match = compl_curr_match->cp_prev; match != NULL
&& match != compl_first_match;
match = match->cp_prev)
if (match->cp_number != -1) {
number = match->cp_number;
break;
}
if (match != NULL)
/* go up and assign all numbers which are not assigned
* yet */
for (match = match->cp_next;
match != NULL && match->cp_number == -1;
match = match->cp_next)
match->cp_number = ++number;
} else { /* BACKWARD */
/* search forwards (upwards) for the first valid (!= -1)
* number. This should normally succeed already at the
* first loop cycle, so it's fast! */
for (match = compl_curr_match->cp_next; match != NULL
&& match != compl_first_match;
match = match->cp_next)
if (match->cp_number != -1) {
number = match->cp_number;
break;
}
if (match != NULL)
/* go down and assign all numbers which are not
* assigned yet */
for (match = match->cp_prev; match
&& match->cp_number == -1;
match = match->cp_prev)
match->cp_number = ++number;
}
}
/* The match should always have a sequence number now, this is
* just a safety check. */
if (compl_curr_match->cp_number != -1) {
/* Space for 10 text chars. + 2x10-digit no.s = 31.
* Translations may need more than twice that. */
static char_u match_ref[81];
if (compl_matches > 0)
vim_snprintf((char *)match_ref, sizeof(match_ref),
_("match %d of %d"),
compl_curr_match->cp_number, compl_matches);
else
vim_snprintf((char *)match_ref, sizeof(match_ref),
_("match %d"),
compl_curr_match->cp_number);
edit_submode_extra = match_ref;
edit_submode_highl = HLF_R;
if (dollar_vcol >= 0)
curs_columns(FALSE);
}
}
}
/* Show a message about what (completion) mode we're in. */
showmode();
if (!shortmess(SHM_COMPLETIONMENU)) {
if (edit_submode_extra != NULL) {
if (!p_smd) {
msg_attr((const char *)edit_submode_extra,
(edit_submode_highl < HLF_COUNT
? HL_ATTR(edit_submode_highl) : 0));
}
} else {
msg_clr_cmdline(); // necessary for "noshowmode"
}
}
// Show the popup menu, unless we got interrupted.
if (enable_pum && !compl_interrupted) {
show_pum(save_w_wrow, save_w_leftcol);
}
compl_was_interrupted = compl_interrupted;
compl_interrupted = FALSE;
return OK;
}
/*
* Looks in the first "len" chars. of "src" for search-metachars.
* If dest is not NULL the chars. are copied there quoting (with
* a backslash) the metachars, and dest would be NUL terminated.
* Returns the length (needed) of dest
*/
static unsigned quote_meta(char_u *dest, char_u *src, int len)
{
unsigned m = (unsigned)len + 1; /* one extra for the NUL */
for (; --len >= 0; src++) {
switch (*src) {
case '.':
case '*':
case '[':
if (ctrl_x_mode == CTRL_X_DICTIONARY
|| ctrl_x_mode == CTRL_X_THESAURUS)
break;
FALLTHROUGH;
case '~':
if (!p_magic) /* quote these only if magic is set */
break;
FALLTHROUGH;
case '\\':
if (ctrl_x_mode == CTRL_X_DICTIONARY
|| ctrl_x_mode == CTRL_X_THESAURUS)
break;
FALLTHROUGH;
case '^': // currently it's not needed.
case '$':
m++;
if (dest != NULL)
*dest++ = '\\';
break;
}
if (dest != NULL)
*dest++ = *src;
/* Copy remaining bytes of a multibyte character. */
if (has_mbyte) {
int i, mb_len;
mb_len = (*mb_ptr2len)(src) - 1;
if (mb_len > 0 && len >= mb_len)
for (i = 0; i < mb_len; ++i) {
--len;
++src;
if (dest != NULL)
*dest++ = *src;
}
}
}
if (dest != NULL)
*dest = NUL;
return m;
}
/*
* Next character is interpreted literally.
* A one, two or three digit decimal number is interpreted as its byte value.
* If one or two digits are entered, the next character is given to vungetc().
* For Unicode a character > 255 may be returned.
*/
int get_literal(void)
{
int cc;
int nc;
int i;
int hex = FALSE;
int octal = FALSE;
int unicode = 0;
if (got_int)
return Ctrl_C;
++no_mapping; /* don't map the next key hits */
cc = 0;
i = 0;
for (;; ) {
nc = plain_vgetc();
if (!(State & CMDLINE)
&& MB_BYTE2LEN_CHECK(nc) == 1
)
add_to_showcmd(nc);
if (nc == 'x' || nc == 'X')
hex = TRUE;
else if (nc == 'o' || nc == 'O')
octal = TRUE;
else if (nc == 'u' || nc == 'U')
unicode = nc;
else {
if (hex
|| unicode != 0
) {
if (!ascii_isxdigit(nc))
break;
cc = cc * 16 + hex2nr(nc);
} else if (octal) {
if (nc < '0' || nc > '7')
break;
cc = cc * 8 + nc - '0';
} else {
if (!ascii_isdigit(nc))
break;
cc = cc * 10 + nc - '0';
}
++i;
}
if (cc > 255
&& unicode == 0
)
cc = 255; /* limit range to 0-255 */
nc = 0;
if (hex) { /* hex: up to two chars */
if (i >= 2)
break;
} else if (unicode) { /* Unicode: up to four or eight chars */
if ((unicode == 'u' && i >= 4) || (unicode == 'U' && i >= 8))
break;
} else if (i >= 3) /* decimal or octal: up to three chars */
break;
}
if (i == 0) { /* no number entered */
if (nc == K_ZERO) { /* NUL is stored as NL */
cc = '\n';
nc = 0;
} else {
cc = nc;
nc = 0;
}
}
if (cc == 0) { // NUL is stored as NL
cc = '\n';
}
--no_mapping;
if (nc)
vungetc(nc);
got_int = FALSE; /* CTRL-C typed after CTRL-V is not an interrupt */
return cc;
}
/// Insert character, taking care of special keys and mod_mask
///
/// @param ctrlv `c` was typed after CTRL-V
static void insert_special(int c, int allow_modmask, int ctrlv)
{
char_u *p;
int len;
// Special function key, translate into "<Key>". Up to the last '>' is
// inserted with ins_str(), so as not to replace characters in replace
// mode.
// Only use mod_mask for special keys, to avoid things like <S-Space>,
// unless 'allow_modmask' is TRUE.
if (mod_mask & MOD_MASK_CMD) { // Command-key never produces a normal key.
allow_modmask = true;
}
if (IS_SPECIAL(c) || (mod_mask && allow_modmask)) {
p = get_special_key_name(c, mod_mask);
len = (int)STRLEN(p);
c = p[len - 1];
if (len > 2) {
if (stop_arrow() == FAIL)
return;
p[len - 1] = NUL;
ins_str(p);
AppendToRedobuffLit(p, -1);
ctrlv = FALSE;
}
}
if (stop_arrow() == OK)
insertchar(c, ctrlv ? INSCHAR_CTRLV : 0, -1);
}
/*
* Special characters in this context are those that need processing other
* than the simple insertion that can be performed here. This includes ESC
* which terminates the insert, and CR/NL which need special processing to
* open up a new line. This routine tries to optimize insertions performed by
* the "redo", "undo" or "put" commands, so it needs to know when it should
* stop and defer processing to the "normal" mechanism.
* '0' and '^' are special, because they can be followed by CTRL-D.
*/
# define ISSPECIAL(c) ((c) < ' ' || (c) >= DEL || (c) == '0' || (c) == '^')
# define WHITECHAR(cc) (ascii_iswhite(cc) && \
(!enc_utf8 || \
!utf_iscomposing( \
utf_ptr2char(get_cursor_pos_ptr() + 1))))
/*
* "flags": INSCHAR_FORMAT - force formatting
* INSCHAR_CTRLV - char typed just after CTRL-V
* INSCHAR_NO_FEX - don't use 'formatexpr'
*
* NOTE: passes the flags value straight through to internal_format() which,
* beside INSCHAR_FORMAT (above), is also looking for these:
* INSCHAR_DO_COM - format comments
* INSCHAR_COM_LIST - format comments with num list or 2nd line indent
*/
void
insertchar (
int c, /* character to insert or NUL */
int flags, /* INSCHAR_FORMAT, etc. */
int second_indent /* indent for second line if >= 0 */
)
{
int textwidth;
char_u *p;
int fo_ins_blank;
int force_format = flags & INSCHAR_FORMAT;
textwidth = comp_textwidth(force_format);
fo_ins_blank = has_format_option(FO_INS_BLANK);
/*
* Try to break the line in two or more pieces when:
* - Always do this if we have been called to do formatting only.
* - Always do this when 'formatoptions' has the 'a' flag and the line
* ends in white space.
* - Otherwise:
* - Don't do this if inserting a blank
* - Don't do this if an existing character is being replaced, unless
* we're in VREPLACE mode.
* - Do this if the cursor is not on the line where insert started
* or - 'formatoptions' doesn't have 'l' or the line was not too long
* before the insert.
* - 'formatoptions' doesn't have 'b' or a blank was inserted at or
* before 'textwidth'
*/
if (textwidth > 0
&& (force_format
|| (!ascii_iswhite(c)
&& !((State & REPLACE_FLAG)
&& !(State & VREPLACE_FLAG)
&& *get_cursor_pos_ptr() != NUL)
&& (curwin->w_cursor.lnum != Insstart.lnum
|| ((!has_format_option(FO_INS_LONG)
|| Insstart_textlen <= (colnr_T)textwidth)
&& (!fo_ins_blank
|| Insstart_blank_vcol <= (colnr_T)textwidth
)))))) {
/* Format with 'formatexpr' when it's set. Use internal formatting
* when 'formatexpr' isn't set or it returns non-zero. */
int do_internal = TRUE;
colnr_T virtcol = get_nolist_virtcol()
+ char2cells(c != NUL ? c : gchar_cursor());
if (*curbuf->b_p_fex != NUL && (flags & INSCHAR_NO_FEX) == 0
&& (force_format || virtcol > (colnr_T)textwidth)) {
do_internal = (fex_format(curwin->w_cursor.lnum, 1L, c) != 0);
/* It may be required to save for undo again, e.g. when setline()
* was called. */
ins_need_undo = TRUE;
}
if (do_internal)
internal_format(textwidth, second_indent, flags, c == NUL, c);
}
if (c == NUL) /* only formatting was wanted */
return;
// Check whether this character should end a comment.
if (did_ai && c == end_comment_pending) {
char_u *line;
char_u lead_end[COM_MAX_LEN]; // end-comment string
int middle_len, end_len;
int i;
/*
* Need to remove existing (middle) comment leader and insert end
* comment leader. First, check what comment leader we can find.
*/
i = get_leader_len(line = get_cursor_line_ptr(), &p, false, true);
if (i > 0 && vim_strchr(p, COM_MIDDLE) != NULL) { // Just checking
// Skip middle-comment string
while (*p && p[-1] != ':') { // find end of middle flags
p++;
}
middle_len = copy_option_part(&p, lead_end, COM_MAX_LEN, ",");
// Don't count trailing white space for middle_len
while (middle_len > 0 && ascii_iswhite(lead_end[middle_len - 1])) {
middle_len--;
}
// Find the end-comment string
while (*p && p[-1] != ':') { // find end of end flags
p++;
}
end_len = copy_option_part(&p, lead_end, COM_MAX_LEN, ",");
// Skip white space before the cursor
i = curwin->w_cursor.col;
while (--i >= 0 && ascii_iswhite(line[i]))
;
i++;
// Skip to before the middle leader
i -= middle_len;
// Check some expected things before we go on
if (i >= 0 && lead_end[end_len - 1] == end_comment_pending) {
// Backspace over all the stuff we want to replace
backspace_until_column(i);
// Insert the end-comment string, except for the last
// character, which will get inserted as normal later.
ins_bytes_len(lead_end, end_len - 1);
}
}
}
end_comment_pending = NUL;
did_ai = false;
did_si = false;
can_si = false;
can_si_back = false;
// If there's any pending input, grab up to INPUT_BUFLEN at once.
// This speeds up normal text input considerably.
// Don't do this when 'cindent' or 'indentexpr' is set, because we might
// need to re-indent at a ':', or any other character (but not what
// 'paste' is set)..
// Don't do this when there an InsertCharPre autocommand is defined,
// because we need to fire the event for every character.
// Do the check for InsertCharPre before the call to vpeekc() because the
// InsertCharPre autocommand could change the input buffer.
if (!ISSPECIAL(c)
&& (!has_mbyte || (*mb_char2len)(c) == 1)
&& !has_event(EVENT_INSERTCHARPRE)
&& vpeekc() != NUL
&& !(State & REPLACE_FLAG)
&& !cindent_on()
&& !p_ri) {
#define INPUT_BUFLEN 100
char_u buf[INPUT_BUFLEN + 1];
int i;
colnr_T virtcol = 0;
buf[0] = c;
i = 1;
if (textwidth > 0) {
virtcol = get_nolist_virtcol();
}
// Stop the string when:
// - no more chars available
// - finding a special character (command key)
// - buffer is full
// - running into the 'textwidth' boundary
// - need to check for abbreviation: A non-word char after a word-char
while ((c = vpeekc()) != NUL
&& !ISSPECIAL(c)
&& MB_BYTE2LEN(c) == 1
&& i < INPUT_BUFLEN
&& (textwidth == 0
|| (virtcol += byte2cells(buf[i - 1])) < (colnr_T)textwidth)
&& !(!no_abbr && !vim_iswordc(c) && vim_iswordc(buf[i - 1]))) {
c = vgetc();
if (p_hkmap && KeyTyped) {
c = hkmap(c); // Hebrew mode mapping
}
buf[i++] = c;
}
do_digraph(-1); /* clear digraphs */
do_digraph(buf[i-1]); /* may be the start of a digraph */
buf[i] = NUL;
ins_str(buf);
if (flags & INSCHAR_CTRLV) {
redo_literal(*buf);
i = 1;
} else
i = 0;
if (buf[i] != NUL)
AppendToRedobuffLit(buf + i, -1);
} else {
int cc;
if ((cc = utf_char2len(c)) > 1) {
char_u buf[MB_MAXBYTES + 1];
utf_char2bytes(c, buf);
buf[cc] = NUL;
ins_char_bytes(buf, cc);
AppendCharToRedobuff(c);
} else {
ins_char(c);
if (flags & INSCHAR_CTRLV) {
redo_literal(c);
} else {
AppendCharToRedobuff(c);
}
}
}
}
/*
* Format text at the current insert position.
*
* If the INSCHAR_COM_LIST flag is present, then the value of second_indent
* will be the comment leader length sent to open_line().
*/
static void
internal_format (
int textwidth,
int second_indent,
int flags,
int format_only,
int c /* character to be inserted (can be NUL) */
)
{
int cc;
int save_char = NUL;
bool haveto_redraw = false;
int fo_ins_blank = has_format_option(FO_INS_BLANK);
int fo_multibyte = has_format_option(FO_MBYTE_BREAK);
int fo_white_par = has_format_option(FO_WHITE_PAR);
int first_line = TRUE;
colnr_T leader_len;
int no_leader = FALSE;
int do_comments = (flags & INSCHAR_DO_COM);
int has_lbr = curwin->w_p_lbr;
// make sure win_lbr_chartabsize() counts correctly
curwin->w_p_lbr = false;
/*
* When 'ai' is off we don't want a space under the cursor to be
* deleted. Replace it with an 'x' temporarily.
*/
if (!curbuf->b_p_ai
&& !(State & VREPLACE_FLAG)
) {
cc = gchar_cursor();
if (ascii_iswhite(cc)) {
save_char = cc;
pchar_cursor('x');
}
}
/*
* Repeat breaking lines, until the current line is not too long.
*/
while (!got_int) {
int startcol; /* Cursor column at entry */
int wantcol; /* column at textwidth border */
int foundcol; /* column for start of spaces */
int end_foundcol = 0; /* column for start of word */
colnr_T len;
colnr_T virtcol;
int orig_col = 0;
char_u *saved_text = NULL;
colnr_T col;
colnr_T end_col;
virtcol = get_nolist_virtcol()
+ char2cells(c != NUL ? c : gchar_cursor());
if (virtcol <= (colnr_T)textwidth)
break;
if (no_leader)
do_comments = FALSE;
else if (!(flags & INSCHAR_FORMAT)
&& has_format_option(FO_WRAP_COMS))
do_comments = TRUE;
/* Don't break until after the comment leader */
if (do_comments)
leader_len = get_leader_len(get_cursor_line_ptr(), NULL, FALSE, TRUE);
else
leader_len = 0;
/* If the line doesn't start with a comment leader, then don't
* start one in a following broken line. Avoids that a %word
* moved to the start of the next line causes all following lines
* to start with %. */
if (leader_len == 0)
no_leader = TRUE;
if (!(flags & INSCHAR_FORMAT)
&& leader_len == 0
&& !has_format_option(FO_WRAP))
break;
if ((startcol = curwin->w_cursor.col) == 0)
break;
/* find column of textwidth border */
coladvance((colnr_T)textwidth);
wantcol = curwin->w_cursor.col;
curwin->w_cursor.col = startcol;
foundcol = 0;
/*
* Find position to break at.
* Stop at first entered white when 'formatoptions' has 'v'
*/
while ((!fo_ins_blank && !has_format_option(FO_INS_VI))
|| (flags & INSCHAR_FORMAT)
|| curwin->w_cursor.lnum != Insstart.lnum
|| curwin->w_cursor.col >= Insstart.col) {
if (curwin->w_cursor.col == startcol && c != NUL)
cc = c;
else
cc = gchar_cursor();
if (WHITECHAR(cc)) {
/* remember position of blank just before text */
end_col = curwin->w_cursor.col;
// find start of sequence of blanks
int wcc = 0; // counter for whitespace chars
while (curwin->w_cursor.col > 0 && WHITECHAR(cc)) {
dec_cursor();
cc = gchar_cursor();
// Increment count of how many whitespace chars in this
// group; we only need to know if it's more than one.
if (wcc < 2) {
wcc++;
}
}
if (curwin->w_cursor.col == 0 && WHITECHAR(cc)) {
break; // only spaces in front of text
}
// Don't break after a period when 'formatoptions' has 'p' and
// there are less than two spaces.
if (has_format_option(FO_PERIOD_ABBR) && cc == '.' && wcc < 2) {
continue;
}
// Don't break until after the comment leader
if (curwin->w_cursor.col < leader_len) {
break;
}
if (has_format_option(FO_ONE_LETTER)) {
/* do not break after one-letter words */
if (curwin->w_cursor.col == 0)
break; /* one-letter word at begin */
/* do not break "#a b" when 'tw' is 2 */
if (curwin->w_cursor.col <= leader_len)
break;
col = curwin->w_cursor.col;
dec_cursor();
cc = gchar_cursor();
if (WHITECHAR(cc))
continue; /* one-letter, continue */
curwin->w_cursor.col = col;
}
inc_cursor();
end_foundcol = end_col + 1;
foundcol = curwin->w_cursor.col;
if (curwin->w_cursor.col <= (colnr_T)wantcol)
break;
} else if (cc >= 0x100 && fo_multibyte) {
/* Break after or before a multi-byte character. */
if (curwin->w_cursor.col != startcol) {
/* Don't break until after the comment leader */
if (curwin->w_cursor.col < leader_len)
break;
col = curwin->w_cursor.col;
inc_cursor();
/* Don't change end_foundcol if already set. */
if (foundcol != curwin->w_cursor.col) {
foundcol = curwin->w_cursor.col;
end_foundcol = foundcol;
if (curwin->w_cursor.col <= (colnr_T)wantcol)
break;
}
curwin->w_cursor.col = col;
}
if (curwin->w_cursor.col == 0)
break;
col = curwin->w_cursor.col;
dec_cursor();
cc = gchar_cursor();
if (WHITECHAR(cc))
continue; /* break with space */
/* Don't break until after the comment leader */
if (curwin->w_cursor.col < leader_len)
break;
curwin->w_cursor.col = col;
foundcol = curwin->w_cursor.col;
end_foundcol = foundcol;
if (curwin->w_cursor.col <= (colnr_T)wantcol)
break;
}
if (curwin->w_cursor.col == 0)
break;
dec_cursor();
}
if (foundcol == 0) { /* no spaces, cannot break line */
curwin->w_cursor.col = startcol;
break;
}
/* Going to break the line, remove any "$" now. */
undisplay_dollar();
/*
* Offset between cursor position and line break is used by replace
* stack functions. VREPLACE does not use this, and backspaces
* over the text instead.
*/
if (State & VREPLACE_FLAG)
orig_col = startcol; /* Will start backspacing from here */
else
replace_offset = startcol - end_foundcol;
/*
* adjust startcol for spaces that will be deleted and
* characters that will remain on top line
*/
curwin->w_cursor.col = foundcol;
while ((cc = gchar_cursor(), WHITECHAR(cc))
&& (!fo_white_par || curwin->w_cursor.col < startcol))
inc_cursor();
startcol -= curwin->w_cursor.col;
if (startcol < 0)
startcol = 0;
if (State & VREPLACE_FLAG) {
/*
* In VREPLACE mode, we will backspace over the text to be
* wrapped, so save a copy now to put on the next line.
*/
saved_text = vim_strsave(get_cursor_pos_ptr());
curwin->w_cursor.col = orig_col;
saved_text[startcol] = NUL;
/* Backspace over characters that will move to the next line */
if (!fo_white_par)
backspace_until_column(foundcol);
} else {
/* put cursor after pos. to break line */
if (!fo_white_par)
curwin->w_cursor.col = foundcol;
}
/*
* Split the line just before the margin.
* Only insert/delete lines, but don't really redraw the window.
*/
open_line(FORWARD, OPENLINE_DELSPACES + OPENLINE_MARKFIX
+ (fo_white_par ? OPENLINE_KEEPTRAIL : 0)
+ (do_comments ? OPENLINE_DO_COM : 0)
+ ((flags & INSCHAR_COM_LIST) ? OPENLINE_COM_LIST : 0)
, ((flags & INSCHAR_COM_LIST) ? second_indent : old_indent));
if (!(flags & INSCHAR_COM_LIST))
old_indent = 0;
replace_offset = 0;
if (first_line) {
if (!(flags & INSCHAR_COM_LIST)) {
/*
* This section is for auto-wrap of numeric lists. When not
* in insert mode (i.e. format_lines()), the INSCHAR_COM_LIST
* flag will be set and open_line() will handle it (as seen
* above). The code here (and in get_number_indent()) will
* recognize comments if needed...
*/
if (second_indent < 0 && has_format_option(FO_Q_NUMBER))
second_indent =
get_number_indent(curwin->w_cursor.lnum - 1);
if (second_indent >= 0) {
if (State & VREPLACE_FLAG)
change_indent(INDENT_SET, second_indent,
FALSE, NUL, TRUE);
else if (leader_len > 0 && second_indent - leader_len > 0) {
int i;
int padding = second_indent - leader_len;
/* We started at the first_line of a numbered list
* that has a comment. the open_line() function has
* inserted the proper comment leader and positioned
* the cursor at the end of the split line. Now we
* add the additional whitespace needed after the
* comment leader for the numbered list. */
for (i = 0; i < padding; i++)
ins_str((char_u *)" ");
changed_bytes(curwin->w_cursor.lnum, leader_len);
} else {
(void)set_indent(second_indent, SIN_CHANGED);
}
}
}
first_line = FALSE;
}
if (State & VREPLACE_FLAG) {
/*
* In VREPLACE mode we have backspaced over the text to be
* moved, now we re-insert it into the new line.
*/
ins_bytes(saved_text);
xfree(saved_text);
} else {
/*
* Check if cursor is not past the NUL off the line, cindent
* may have added or removed indent.
*/
curwin->w_cursor.col += startcol;
len = (colnr_T)STRLEN(get_cursor_line_ptr());
if (curwin->w_cursor.col > len)
curwin->w_cursor.col = len;
}
haveto_redraw = true;
can_cindent = true;
// moved the cursor, don't autoindent or cindent now
did_ai = false;
did_si = false;
can_si = false;
can_si_back = false;
line_breakcheck();
}
if (save_char != NUL) /* put back space after cursor */
pchar_cursor(save_char);
curwin->w_p_lbr = has_lbr;
if (!format_only && haveto_redraw) {
update_topline();
redraw_curbuf_later(VALID);
}
}
/*
* Called after inserting or deleting text: When 'formatoptions' includes the
* 'a' flag format from the current line until the end of the paragraph.
* Keep the cursor at the same position relative to the text.
* The caller must have saved the cursor line for undo, following ones will be
* saved here.
*/
void
auto_format (
int trailblank, /* when TRUE also format with trailing blank */
int prev_line /* may start in previous line */
)
{
pos_T pos;
colnr_T len;
char_u *old;
char_u *new, *pnew;
int wasatend;
int cc;
if (!has_format_option(FO_AUTO))
return;
pos = curwin->w_cursor;
old = get_cursor_line_ptr();
// may remove added space
check_auto_format(false);
/* Don't format in Insert mode when the cursor is on a trailing blank, the
* user might insert normal text next. Also skip formatting when "1" is
* in 'formatoptions' and there is a single character before the cursor.
* Otherwise the line would be broken and when typing another non-white
* next they are not joined back together. */
wasatend = (pos.col == (colnr_T)STRLEN(old));
if (*old != NUL && !trailblank && wasatend) {
dec_cursor();
cc = gchar_cursor();
if (!WHITECHAR(cc) && curwin->w_cursor.col > 0
&& has_format_option(FO_ONE_LETTER))
dec_cursor();
cc = gchar_cursor();
if (WHITECHAR(cc)) {
curwin->w_cursor = pos;
return;
}
curwin->w_cursor = pos;
}
/* With the 'c' flag in 'formatoptions' and 't' missing: only format
* comments. */
if (has_format_option(FO_WRAP_COMS) && !has_format_option(FO_WRAP)
&& get_leader_len(old, NULL, FALSE, TRUE) == 0)
return;
/*
* May start formatting in a previous line, so that after "x" a word is
* moved to the previous line if it fits there now. Only when this is not
* the start of a paragraph.
*/
if (prev_line && !paragraph_start(curwin->w_cursor.lnum)) {
--curwin->w_cursor.lnum;
if (u_save_cursor() == FAIL)
return;
}
/*
* Do the formatting and restore the cursor position. "saved_cursor" will
* be adjusted for the text formatting.
*/
saved_cursor = pos;
format_lines((linenr_T)-1, FALSE);
curwin->w_cursor = saved_cursor;
saved_cursor.lnum = 0;
if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count) {
/* "cannot happen" */
curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
coladvance((colnr_T)MAXCOL);
} else
check_cursor_col();
/* Insert mode: If the cursor is now after the end of the line while it
* previously wasn't, the line was broken. Because of the rule above we
* need to add a space when 'w' is in 'formatoptions' to keep a paragraph
* formatted. */
if (!wasatend && has_format_option(FO_WHITE_PAR)) {
new = get_cursor_line_ptr();
len = (colnr_T)STRLEN(new);
if (curwin->w_cursor.col == len) {
pnew = vim_strnsave(new, len + 2);
pnew[len] = ' ';
pnew[len + 1] = NUL;
ml_replace(curwin->w_cursor.lnum, pnew, false);
// remove the space later
did_add_space = true;
} else {
// may remove added space
check_auto_format(false);
}
}
check_cursor();
}
/*
* When an extra space was added to continue a paragraph for auto-formatting,
* delete it now. The space must be under the cursor, just after the insert
* position.
*/
static void check_auto_format(
bool end_insert // true when ending Insert mode
)
{
int c = ' ';
int cc;
if (did_add_space) {
cc = gchar_cursor();
if (!WHITECHAR(cc)) {
// Somehow the space was removed already.
did_add_space = false;
} else {
if (!end_insert) {
inc_cursor();
c = gchar_cursor();
dec_cursor();
}
if (c != NUL) {
// The space is no longer at the end of the line, delete it.
del_char(false);
did_add_space = false;
}
}
}
}
/*
* Find out textwidth to be used for formatting:
* if 'textwidth' option is set, use it
* else if 'wrapmargin' option is set, use curwin->w_width_inner-'wrapmargin'
* if invalid value, use 0.
* Set default to window width (maximum 79) for "gq" operator.
*/
int
comp_textwidth (
int ff /* force formatting (for "gq" command) */
)
{
int textwidth;
textwidth = curbuf->b_p_tw;
if (textwidth == 0 && curbuf->b_p_wm) {
/* The width is the window width minus 'wrapmargin' minus all the
* things that add to the margin. */
textwidth = curwin->w_width_inner - curbuf->b_p_wm;
if (cmdwin_type != 0) {
textwidth -= 1;
}
textwidth -= curwin->w_p_fdc;
textwidth -= win_signcol_count(curwin);
if (curwin->w_p_nu || curwin->w_p_rnu)
textwidth -= 8;
}
if (textwidth < 0)
textwidth = 0;
if (ff && textwidth == 0) {
textwidth = curwin->w_width_inner - 1;
if (textwidth > 79) {
textwidth = 79;
}
}
return textwidth;
}
/*
* Put a character in the redo buffer, for when just after a CTRL-V.
*/
static void redo_literal(int c)
{
char buf[10];
// Only digits need special treatment. Translate them into a string of
// three digits.
if (ascii_isdigit(c)) {
vim_snprintf(buf, sizeof(buf), "%03d", c);
AppendToRedobuff(buf);
} else {
AppendCharToRedobuff(c);
}
}
// start_arrow() is called when an arrow key is used in insert mode.
// For undo/redo it resembles hitting the <ESC> key.
static void start_arrow(pos_T *end_insert_pos /* can be NULL */)
{
start_arrow_common(end_insert_pos, true);
}
/// Like start_arrow() but with end_change argument.
/// Will prepare for redo of CTRL-G U if "end_change" is FALSE.
/// @param end_insert_pos can be NULL
/// @param end_change end undoable change
static void start_arrow_with_change(pos_T *end_insert_pos, bool end_change)
{
start_arrow_common(end_insert_pos, end_change);
if (!end_change) {
AppendCharToRedobuff(Ctrl_G);
AppendCharToRedobuff('U');
}
}
/// @param end_insert_pos can be NULL
/// @param end_change end undoable change
static void start_arrow_common(pos_T *end_insert_pos, bool end_change)
{
if (!arrow_used && end_change) { // something has been inserted
AppendToRedobuff(ESC_STR);
stop_insert(end_insert_pos, false, false);
arrow_used = true; // This means we stopped the current insert.
}
check_spell_redraw();
}
/*
* If we skipped highlighting word at cursor, do it now.
* It may be skipped again, thus reset spell_redraw_lnum first.
*/
static void check_spell_redraw(void)
{
if (spell_redraw_lnum != 0) {
linenr_T lnum = spell_redraw_lnum;
spell_redraw_lnum = 0;
redrawWinline(curwin, lnum);
}
}
/*
* Called when starting CTRL_X_SPELL mode: Move backwards to a previous badly
* spelled word, if there is one.
*/
static void spell_back_to_badword(void)
{
pos_T tpos = curwin->w_cursor;
spell_bad_len = spell_move_to(curwin, BACKWARD, TRUE, TRUE, NULL);
if (curwin->w_cursor.col != tpos.col)
start_arrow(&tpos);
}
/*
* stop_arrow() is called before a change is made in insert mode.
* If an arrow key has been used, start a new insertion.
* Returns FAIL if undo is impossible, shouldn't insert then.
*/
int stop_arrow(void)
{
if (arrow_used) {
Insstart = curwin->w_cursor; //new insertion starts here
if (Insstart.col > Insstart_orig.col && !ins_need_undo) {
// Don't update the original insert position when moved to the
// right, except when nothing was inserted yet.
update_Insstart_orig = FALSE;
}
Insstart_textlen = (colnr_T)linetabsize(get_cursor_line_ptr());
if (u_save_cursor() == OK) {
arrow_used = FALSE;
ins_need_undo = FALSE;
}
ai_col = 0;
if (State & VREPLACE_FLAG) {
orig_line_count = curbuf->b_ml.ml_line_count;
vr_lines_changed = 1;
}
ResetRedobuff();
AppendToRedobuff("1i"); // Pretend we start an insertion.
new_insert_skip = 2;
} else if (ins_need_undo) {
if (u_save_cursor() == OK)
ins_need_undo = FALSE;
}
/* Always open fold at the cursor line when inserting something. */
foldOpenCursor();
return arrow_used || ins_need_undo ? FAIL : OK;
}
/*
* Do a few things to stop inserting.
* "end_insert_pos" is where insert ended. It is NULL when we already jumped
* to another window/buffer.
*/
static void
stop_insert (
pos_T *end_insert_pos,
int esc, /* called by ins_esc() */
int nomove /* <c-\><c-o>, don't move cursor */
)
{
int cc;
char_u *ptr;
stop_redo_ins();
replace_flush(); /* abandon replace stack */
/*
* Save the inserted text for later redo with ^@ and CTRL-A.
* Don't do it when "restart_edit" was set and nothing was inserted,
* otherwise CTRL-O w and then <Left> will clear "last_insert".
*/
ptr = get_inserted();
if (did_restart_edit == 0 || (ptr != NULL
&& (int)STRLEN(ptr) > new_insert_skip)) {
xfree(last_insert);
last_insert = ptr;
last_insert_skip = new_insert_skip;
} else
xfree(ptr);
if (!arrow_used && end_insert_pos != NULL) {
/* Auto-format now. It may seem strange to do this when stopping an
* insertion (or moving the cursor), but it's required when appending
* a line and having it end in a space. But only do it when something
* was actually inserted, otherwise undo won't work. */
if (!ins_need_undo && has_format_option(FO_AUTO)) {
pos_T tpos = curwin->w_cursor;
/* When the cursor is at the end of the line after a space the
* formatting will move it to the following word. Avoid that by
* moving the cursor onto the space. */
cc = 'x';
if (curwin->w_cursor.col > 0 && gchar_cursor() == NUL) {
dec_cursor();
cc = gchar_cursor();
if (!ascii_iswhite(cc))
curwin->w_cursor = tpos;
}
auto_format(TRUE, FALSE);
if (ascii_iswhite(cc)) {
if (gchar_cursor() != NUL)
inc_cursor();
/* If the cursor is still at the same character, also keep
* the "coladd". */
if (gchar_cursor() == NUL
&& curwin->w_cursor.lnum == tpos.lnum
&& curwin->w_cursor.col == tpos.col)
curwin->w_cursor.coladd = tpos.coladd;
}
}
// If a space was inserted for auto-formatting, remove it now.
check_auto_format(true);
/* If we just did an auto-indent, remove the white space from the end
* of the line, and put the cursor back.
* Do this when ESC was used or moving the cursor up/down.
* Check for the old position still being valid, just in case the text
* got changed unexpectedly. */
if (!nomove && did_ai && (esc || (vim_strchr(p_cpo, CPO_INDENT) == NULL
&& curwin->w_cursor.lnum !=
end_insert_pos->lnum))
&& end_insert_pos->lnum <= curbuf->b_ml.ml_line_count) {
pos_T tpos = curwin->w_cursor;
curwin->w_cursor = *end_insert_pos;
check_cursor_col(); /* make sure it is not past the line */
for (;; ) {
if (gchar_cursor() == NUL && curwin->w_cursor.col > 0)
--curwin->w_cursor.col;
cc = gchar_cursor();
if (!ascii_iswhite(cc)) {
break;
}
if (del_char(true) == FAIL) {
break; // should not happen
}
}
if (curwin->w_cursor.lnum != tpos.lnum)
curwin->w_cursor = tpos;
else {
/* reset tpos, could have been invalidated in the loop above */
tpos = curwin->w_cursor;
tpos.col++;
if (cc != NUL && gchar_pos(&tpos) == NUL) {
++curwin->w_cursor.col; // put cursor back on the NUL
}
}
/* <C-S-Right> may have started Visual mode, adjust the position for
* deleted characters. */
if (VIsual_active && VIsual.lnum == curwin->w_cursor.lnum) {
int len = (int)STRLEN(get_cursor_line_ptr());
if (VIsual.col > len) {
VIsual.col = len;
VIsual.coladd = 0;
}
}
}
}
did_ai = false;
did_si = false;
can_si = false;
can_si_back = false;
/* Set '[ and '] to the inserted text. When end_insert_pos is NULL we are
* now in a different buffer. */
if (end_insert_pos != NULL) {
curbuf->b_op_start = Insstart;
curbuf->b_op_start_orig = Insstart_orig;
curbuf->b_op_end = *end_insert_pos;
}
}
/*
* Set the last inserted text to a single character.
* Used for the replace command.
*/
void set_last_insert(int c)
{
char_u *s;
xfree(last_insert);
last_insert = xmalloc(MB_MAXBYTES * 3 + 5);
s = last_insert;
/* Use the CTRL-V only when entering a special char */
if (c < ' ' || c == DEL)
*s++ = Ctrl_V;
s = add_char2buf(c, s);
*s++ = ESC;
*s++ = NUL;
last_insert_skip = 0;
}
#if defined(EXITFREE)
void free_last_insert(void)
{
XFREE_CLEAR(last_insert);
XFREE_CLEAR(compl_orig_text);
}
#endif
/// Add character "c" to buffer "s"
///
/// Escapes the special meaning of K_SPECIAL and CSI, handles multi-byte
/// characters.
///
/// @param[in] c Character to add.
/// @param[out] s Buffer to add to. Must have at least MB_MAXBYTES + 1 bytes.
///
/// @return Pointer to after the added bytes.
char_u *add_char2buf(int c, char_u *s)
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_WARN_UNUSED_RESULT
{
char_u temp[MB_MAXBYTES + 1];
const int len = utf_char2bytes(c, temp);
for (int i = 0; i < len; i++) {
c = temp[i];
// Need to escape K_SPECIAL and CSI like in the typeahead buffer.
if (c == K_SPECIAL) {
*s++ = K_SPECIAL;
*s++ = KS_SPECIAL;
*s++ = KE_FILLER;
} else {
*s++ = c;
}
}
return s;
}
/*
* move cursor to start of line
* if flags & BL_WHITE move to first non-white
* if flags & BL_SOL move to first non-white if startofline is set,
* otherwise keep "curswant" column
* if flags & BL_FIX don't leave the cursor on a NUL.
*/
void beginline(int flags)
{
if ((flags & BL_SOL) && !p_sol)
coladvance(curwin->w_curswant);
else {
curwin->w_cursor.col = 0;
curwin->w_cursor.coladd = 0;
if (flags & (BL_WHITE | BL_SOL)) {
char_u *ptr;
for (ptr = get_cursor_line_ptr(); ascii_iswhite(*ptr)
&& !((flags & BL_FIX) && ptr[1] == NUL); ++ptr)
++curwin->w_cursor.col;
}
curwin->w_set_curswant = TRUE;
}
}
/*
* oneright oneleft cursor_down cursor_up
*
* Move one char {right,left,down,up}.
* Doesn't move onto the NUL past the end of the line, unless it is allowed.
* Return OK when successful, FAIL when we hit a line of file boundary.
*/
int oneright(void)
{
char_u *ptr;
int l;
if (virtual_active()) {
pos_T prevpos = curwin->w_cursor;
/* Adjust for multi-wide char (excluding TAB) */
ptr = get_cursor_pos_ptr();
coladvance(getviscol() + ((*ptr != TAB && vim_isprintc(utf_ptr2char(ptr))) ?
ptr2cells(ptr) : 1));
curwin->w_set_curswant = true;
// Return OK if the cursor moved, FAIL otherwise (at window edge).
return (prevpos.col != curwin->w_cursor.col
|| prevpos.coladd != curwin->w_cursor.coladd) ? OK : FAIL;
}
ptr = get_cursor_pos_ptr();
if (*ptr == NUL)
return FAIL; /* already at the very end */
if (has_mbyte)
l = (*mb_ptr2len)(ptr);
else
l = 1;
/* move "l" bytes right, but don't end up on the NUL, unless 'virtualedit'
* contains "onemore". */
if (ptr[l] == NUL
&& (ve_flags & VE_ONEMORE) == 0
)
return FAIL;
curwin->w_cursor.col += l;
curwin->w_set_curswant = TRUE;
return OK;
}
int oneleft(void)
{
if (virtual_active()) {
int width;
int v = getviscol();
if (v == 0)
return FAIL;
/* We might get stuck on 'showbreak', skip over it. */
width = 1;
for (;; ) {
coladvance(v - width);
/* getviscol() is slow, skip it when 'showbreak' is empty,
'breakindent' is not set and there are no multi-byte
characters */
if ((*p_sbr == NUL
&& !curwin->w_p_bri
&& !has_mbyte
) || getviscol() < v)
break;
++width;
}
if (curwin->w_cursor.coladd == 1) {
char_u *ptr;
/* Adjust for multi-wide char (not a TAB) */
ptr = get_cursor_pos_ptr();
if (*ptr != TAB && vim_isprintc(utf_ptr2char(ptr))
&& ptr2cells(ptr) > 1) {
curwin->w_cursor.coladd = 0;
}
}
curwin->w_set_curswant = TRUE;
return OK;
}
if (curwin->w_cursor.col == 0)
return FAIL;
curwin->w_set_curswant = TRUE;
--curwin->w_cursor.col;
/* if the character on the left of the current cursor is a multi-byte
* character, move to its first byte */
if (has_mbyte)
mb_adjust_cursor();
return OK;
}
int
cursor_up (
long n,
int upd_topline /* When TRUE: update topline */
)
{
linenr_T lnum;
if (n > 0) {
lnum = curwin->w_cursor.lnum;
// This fails if the cursor is already in the first line.
if (lnum <= 1) {
return FAIL;
}
if (n >= lnum)
lnum = 1;
else if (hasAnyFolding(curwin)) {
/*
* Count each sequence of folded lines as one logical line.
*/
/* go to the start of the current fold */
(void)hasFolding(lnum, &lnum, NULL);
while (n--) {
/* move up one line */
--lnum;
if (lnum <= 1)
break;
/* If we entered a fold, move to the beginning, unless in
* Insert mode or when 'foldopen' contains "all": it will open
* in a moment. */
if (n > 0 || !((State & INSERT) || (fdo_flags & FDO_ALL)))
(void)hasFolding(lnum, &lnum, NULL);
}
if (lnum < 1)
lnum = 1;
} else
lnum -= n;
curwin->w_cursor.lnum = lnum;
}
/* try to advance to the column we want to be at */
coladvance(curwin->w_curswant);
if (upd_topline)
update_topline(); /* make sure curwin->w_topline is valid */
return OK;
}
/*
* Cursor down a number of logical lines.
*/
int
cursor_down (
long n,
int upd_topline /* When TRUE: update topline */
)
{
linenr_T lnum;
if (n > 0) {
lnum = curwin->w_cursor.lnum;
/* Move to last line of fold, will fail if it's the end-of-file. */
(void)hasFolding(lnum, NULL, &lnum);
// This fails if the cursor is already in the last line.
if (lnum >= curbuf->b_ml.ml_line_count) {
return FAIL;
}
if (lnum + n >= curbuf->b_ml.ml_line_count)
lnum = curbuf->b_ml.ml_line_count;
else if (hasAnyFolding(curwin)) {
linenr_T last;
/* count each sequence of folded lines as one logical line */
while (n--) {
if (hasFolding(lnum, NULL, &last))
lnum = last + 1;
else
++lnum;
if (lnum >= curbuf->b_ml.ml_line_count)
break;
}
if (lnum > curbuf->b_ml.ml_line_count)
lnum = curbuf->b_ml.ml_line_count;
} else
lnum += n;
curwin->w_cursor.lnum = lnum;
}
/* try to advance to the column we want to be at */
coladvance(curwin->w_curswant);
if (upd_topline)
update_topline(); /* make sure curwin->w_topline is valid */
return OK;
}
/*
* Stuff the last inserted text in the read buffer.
* Last_insert actually is a copy of the redo buffer, so we
* first have to remove the command.
*/
int
stuff_inserted (
int c, /* Command character to be inserted */
long count, /* Repeat this many times */
int no_esc /* Don't add an ESC at the end */
)
{
char_u *esc_ptr;
char_u *ptr;
char_u *last_ptr;
char_u last = NUL;
ptr = get_last_insert();
if (ptr == NULL) {
EMSG(_(e_noinstext));
return FAIL;
}
/* may want to stuff the command character, to start Insert mode */
if (c != NUL)
stuffcharReadbuff(c);
if ((esc_ptr = STRRCHR(ptr, ESC)) != NULL) {
// remove the ESC.
*esc_ptr = NUL;
}
/* when the last char is either "0" or "^" it will be quoted if no ESC
* comes after it OR if it will inserted more than once and "ptr"
* starts with ^D. -- Acevedo
*/
last_ptr = (esc_ptr ? esc_ptr : ptr + STRLEN(ptr)) - 1;
if (last_ptr >= ptr && (*last_ptr == '0' || *last_ptr == '^')
&& (no_esc || (*ptr == Ctrl_D && count > 1))) {
last = *last_ptr;
*last_ptr = NUL;
}
do {
stuffReadbuff((const char *)ptr);
// A trailing "0" is inserted as "<C-V>048", "^" as "<C-V>^".
if (last) {
stuffReadbuff((last == '0'
? "\026\060\064\070"
: "\026^"));
}
} while (--count > 0);
if (last)
*last_ptr = last;
if (esc_ptr != NULL)
*esc_ptr = ESC; /* put the ESC back */
/* may want to stuff a trailing ESC, to get out of Insert mode */
if (!no_esc)
stuffcharReadbuff(ESC);
return OK;
}
char_u *get_last_insert(void)
{
if (last_insert == NULL)
return NULL;
return last_insert + last_insert_skip;
}
/*
* Get last inserted string, and remove trailing <Esc>.
* Returns pointer to allocated memory (must be freed) or NULL.
*/
char_u *get_last_insert_save(void)
{
char_u *s;
int len;
if (last_insert == NULL)
return NULL;
s = vim_strsave(last_insert + last_insert_skip);
len = (int)STRLEN(s);
if (len > 0 && s[len - 1] == ESC) /* remove trailing ESC */
s[len - 1] = NUL;
return s;
}
/// Check the word in front of the cursor for an abbreviation.
/// Called when the non-id character "c" has been entered.
/// When an abbreviation is recognized it is removed from the text and
/// the replacement string is inserted in typebuf.tb_buf[], followed by "c".
///
/// @param c character
///
/// @return true if the word is a known abbreviation.
static bool echeck_abbr(int c)
FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
// Don't check for abbreviation in paste mode, when disabled and just
// after moving around with cursor keys.
if (p_paste || no_abbr || arrow_used) {
return false;
}
return check_abbr(c, get_cursor_line_ptr(), curwin->w_cursor.col,
curwin->w_cursor.lnum == Insstart.lnum ? Insstart.col : 0);
}
/*
* replace-stack functions
*
* When replacing characters, the replaced characters are remembered for each
* new character. This is used to re-insert the old text when backspacing.
*
* There is a NUL headed list of characters for each character that is
* currently in the file after the insertion point. When BS is used, one NUL
* headed list is put back for the deleted character.
*
* For a newline, there are two NUL headed lists. One contains the characters
* that the NL replaced. The extra one stores the characters after the cursor
* that were deleted (always white space).
*/
static char_u *replace_stack = NULL;
static ssize_t replace_stack_nr = 0; /* next entry in replace stack */
static ssize_t replace_stack_len = 0; /* max. number of entries */
/// Push character that is replaced onto the the replace stack.
///
/// replace_offset is normally 0, in which case replace_push will add a new
/// character at the end of the stack. If replace_offset is not 0, that many
/// characters will be left on the stack above the newly inserted character.
///
/// @param c character that is replaced (NUL is none)
void replace_push(int c)
{
if (replace_stack_nr < replace_offset) { // nothing to do
return;
}
if (replace_stack_len <= replace_stack_nr) {
replace_stack_len += 50;
replace_stack = xrealloc(replace_stack, replace_stack_len);
}
char_u *p = replace_stack + replace_stack_nr - replace_offset;
if (replace_offset) {
memmove(p + 1, p, replace_offset);
}
*p = (char_u)c;
++replace_stack_nr;
}
/*
* Push a character onto the replace stack. Handles a multi-byte character in
* reverse byte order, so that the first byte is popped off first.
* Return the number of bytes done (includes composing characters).
*/
int replace_push_mb(char_u *p)
{
int l = (*mb_ptr2len)(p);
int j;
for (j = l - 1; j >= 0; --j)
replace_push(p[j]);
return l;
}
/// Pop one item from the replace stack.
///
/// @return -1 if stack is empty, replaced character or NUL otherwise
static int replace_pop(void)
{
return (replace_stack_nr == 0) ? -1 : (int)replace_stack[--replace_stack_nr];
}
/*
* Join the top two items on the replace stack. This removes to "off"'th NUL
* encountered.
*/
static void
replace_join (
int off /* offset for which NUL to remove */
)
{
int i;
for (i = replace_stack_nr; --i >= 0; )
if (replace_stack[i] == NUL && off-- <= 0) {
--replace_stack_nr;
memmove(replace_stack + i, replace_stack + i + 1,
(size_t)(replace_stack_nr - i));
return;
}
}
/*
* Pop bytes from the replace stack until a NUL is found, and insert them
* before the cursor. Can only be used in REPLACE or VREPLACE mode.
*/
static void replace_pop_ins(void)
{
int cc;
int oldState = State;
State = NORMAL; /* don't want REPLACE here */
while ((cc = replace_pop()) > 0) {
mb_replace_pop_ins(cc);
dec_cursor();
}
State = oldState;
}
/*
* Insert bytes popped from the replace stack. "cc" is the first byte. If it
* indicates a multi-byte char, pop the other bytes too.
*/
static void mb_replace_pop_ins(int cc)
{
int n;
char_u buf[MB_MAXBYTES + 1];
int i;
int c;
if (has_mbyte && (n = MB_BYTE2LEN(cc)) > 1) {
buf[0] = cc;
for (i = 1; i < n; ++i)
buf[i] = replace_pop();
ins_bytes_len(buf, n);
} else {
ins_char(cc);
}
if (enc_utf8)
/* Handle composing chars. */
for (;; ) {
c = replace_pop();
if (c == -1) /* stack empty */
break;
if ((n = MB_BYTE2LEN(c)) == 1) {
/* Not a multi-byte char, put it back. */
replace_push(c);
break;
} else {
buf[0] = c;
assert(n > 1);
for (i = 1; i < n; ++i)
buf[i] = replace_pop();
if (utf_iscomposing(utf_ptr2char(buf)))
ins_bytes_len(buf, n);
else {
/* Not a composing char, put it back. */
for (i = n - 1; i >= 0; --i)
replace_push(buf[i]);
break;
}
}
}
}
/*
* make the replace stack empty
* (called when exiting replace mode)
*/
static void replace_flush(void)
{
XFREE_CLEAR(replace_stack);
replace_stack_len = 0;
replace_stack_nr = 0;
}
/*
* Handle doing a BS for one character.
* cc < 0: replace stack empty, just move cursor
* cc == 0: character was inserted, delete it
* cc > 0: character was replaced, put cc (first byte of original char) back
* and check for more characters to be put back
* When "limit_col" is >= 0, don't delete before this column. Matters when
* using composing characters, use del_char_after_col() instead of del_char().
*/
static void replace_do_bs(int limit_col)
{
int cc;
int orig_len = 0;
int ins_len;
int orig_vcols = 0;
colnr_T start_vcol;
char_u *p;
int i;
int vcol;
const int l_State = State;
cc = replace_pop();
if (cc > 0) {
if (l_State & VREPLACE_FLAG) {
/* Get the number of screen cells used by the character we are
* going to delete. */
getvcol(curwin, &curwin->w_cursor, NULL, &start_vcol, NULL);
orig_vcols = chartabsize(get_cursor_pos_ptr(), start_vcol);
}
if (has_mbyte) {
(void)del_char_after_col(limit_col);
if (l_State & VREPLACE_FLAG)
orig_len = (int)STRLEN(get_cursor_pos_ptr());
replace_push(cc);
} else {
pchar_cursor(cc);
if (l_State & VREPLACE_FLAG)
orig_len = (int)STRLEN(get_cursor_pos_ptr()) - 1;
}
replace_pop_ins();
if (l_State & VREPLACE_FLAG) {
/* Get the number of screen cells used by the inserted characters */
p = get_cursor_pos_ptr();
ins_len = (int)STRLEN(p) - orig_len;
vcol = start_vcol;
for (i = 0; i < ins_len; ++i) {
vcol += chartabsize(p + i, vcol);
i += (*mb_ptr2len)(p) - 1;
}
vcol -= start_vcol;
/* Delete spaces that were inserted after the cursor to keep the
* text aligned. */
curwin->w_cursor.col += ins_len;
while (vcol > orig_vcols && gchar_cursor() == ' ') {
del_char(false);
orig_vcols++;
}
curwin->w_cursor.col -= ins_len;
}
/* mark the buffer as changed and prepare for displaying */
changed_bytes(curwin->w_cursor.lnum, curwin->w_cursor.col);
} else if (cc == 0)
(void)del_char_after_col(limit_col);
}
/// Check that C-indenting is on.
static bool cindent_on(void)
FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT
{
return !p_paste && (curbuf->b_p_cin || *curbuf->b_p_inde != NUL);
}
/*
* Re-indent the current line, based on the current contents of it and the
* surrounding lines. Fixing the cursor position seems really easy -- I'm very
* confused what all the part that handles Control-T is doing that I'm not.
* "get_the_indent" should be get_c_indent, get_expr_indent or get_lisp_indent.
*/
void fixthisline(IndentGetter get_the_indent)
{
int amount = get_the_indent();
if (amount >= 0) {
change_indent(INDENT_SET, amount, false, 0, true);
if (linewhite(curwin->w_cursor.lnum)) {
did_ai = true; // delete the indent if the line stays empty
}
}
}
void fix_indent(void) {
if (p_paste)
return;
if (curbuf->b_p_lisp && curbuf->b_p_ai)
fixthisline(get_lisp_indent);
else if (cindent_on())
do_c_expr_indent();
}
/// Check that "cinkeys" contains the key "keytyped",
/// when == '*': Only if key is preceded with '*' (indent before insert)
/// when == '!': Only if key is preceded with '!' (don't insert)
/// when == ' ': Only if key is not preceded with '*' (indent afterwards)
///
/// "keytyped" can have a few special values:
/// KEY_OPEN_FORW :
/// KEY_OPEN_BACK :
/// KEY_COMPLETE : Just finished completion.
///
/// @param keytyped key that was typed
/// @param when condition on when to perform the check
/// @param line_is_empty when true, accept keys with '0' before them.
bool in_cinkeys(int keytyped, int when, bool line_is_empty)
{
char_u *look;
int try_match;
int try_match_word;
char_u *p;
char_u *line;
int icase;
int i;
if (keytyped == NUL) {
// Can happen with CTRL-Y and CTRL-E on a short line.
return false;
}
if (*curbuf->b_p_inde != NUL)
look = curbuf->b_p_indk; /* 'indentexpr' set: use 'indentkeys' */
else
look = curbuf->b_p_cink; /* 'indentexpr' empty: use 'cinkeys' */
while (*look) {
/*
* Find out if we want to try a match with this key, depending on
* 'when' and a '*' or '!' before the key.
*/
switch (when) {
case '*': try_match = (*look == '*'); break;
case '!': try_match = (*look == '!'); break;
default: try_match = (*look != '*'); break;
}
if (*look == '*' || *look == '!') {
look++;
}
// If there is a '0', only accept a match if the line is empty.
// But may still match when typing last char of a word.
if (*look == '0') {
try_match_word = try_match;
if (!line_is_empty) {
try_match = false;
}
look++;
} else {
try_match_word = false;
}
// Does it look like a control character?
if (*look == '^' && look[1] >= '?' && look[1] <= '_') {
if (try_match && keytyped == Ctrl_chr(look[1])) {
return true;
}
look += 2;
// 'o' means "o" command, open forward.
// 'O' means "O" command, open backward.
} else if (*look == 'o') {
if (try_match && keytyped == KEY_OPEN_FORW) {
return true;
}
look++;
} else if (*look == 'O') {
if (try_match && keytyped == KEY_OPEN_BACK) {
return true;
}
look++;
// 'e' means to check for "else" at start of line and just before the
// cursor.
} else if (*look == 'e') {
if (try_match && keytyped == 'e' && curwin->w_cursor.col >= 4) {
p = get_cursor_line_ptr();
if (skipwhite(p) == p + curwin->w_cursor.col - 4
&& STRNCMP(p + curwin->w_cursor.col - 4, "else", 4) == 0) {
return true;
}
}
look++;
// ':' only causes an indent if it is at the end of a label or case
// statement, or when it was before typing the ':' (to fix
// class::method for C++).
} else if (*look == ':') {
if (try_match && keytyped == ':') {
p = get_cursor_line_ptr();
if (cin_iscase(p, false) || cin_isscopedecl(p) || cin_islabel()) {
return true;
}
// Need to get the line again after cin_islabel().
p = get_cursor_line_ptr();
if (curwin->w_cursor.col > 2
&& p[curwin->w_cursor.col - 1] == ':'
&& p[curwin->w_cursor.col - 2] == ':') {
p[curwin->w_cursor.col - 1] = ' ';
i = (cin_iscase(p, FALSE) || cin_isscopedecl(p)
|| cin_islabel());
p = get_cursor_line_ptr();
p[curwin->w_cursor.col - 1] = ':';
if (i) {
return true;
}
}
}
look++;
// Is it a key in <>, maybe?
} else if (*look == '<') {
if (try_match) {
// make up some named keys <o>, <O>, <e>, <0>, <>>, <<>, <*>,
// <:> and <!> so that people can re-indent on o, O, e, 0, <,
// >, *, : and ! keys if they really really want to.
if (vim_strchr((char_u *)"<>!*oOe0:", look[1]) != NULL
&& keytyped == look[1]) {
return true;
}
if (keytyped == get_special_key_code(look + 1)) {
return true;
}
}
while (*look && *look != '>')
look++;
while (*look == '>')
look++;
}
/*
* Is it a word: "=word"?
*/
else if (*look == '=' && look[1] != ',' && look[1] != NUL) {
++look;
if (*look == '~') {
icase = TRUE;
++look;
} else
icase = FALSE;
p = vim_strchr(look, ',');
if (p == NULL)
p = look + STRLEN(look);
if ((try_match || try_match_word)
&& curwin->w_cursor.col >= (colnr_T)(p - look)) {
bool match = false;
if (keytyped == KEY_COMPLETE) {
char_u *s;
/* Just completed a word, check if it starts with "look".
* search back for the start of a word. */
line = get_cursor_line_ptr();
if (has_mbyte) {
char_u *n;
for (s = line + curwin->w_cursor.col; s > line; s = n) {
n = mb_prevptr(line, s);
if (!vim_iswordp(n))
break;
}
} else
for (s = line + curwin->w_cursor.col; s > line; --s)
if (!vim_iswordc(s[-1]))
break;
assert(p >= look && (uintmax_t)(p - look) <= SIZE_MAX);
if (s + (p - look) <= line + curwin->w_cursor.col
&& (icase
? mb_strnicmp(s, look, (size_t)(p - look))
: STRNCMP(s, look, p - look)) == 0)
match = true;
} else {
// TODO(@brammool): multi-byte
if (keytyped == (int)p[-1]
|| (icase && keytyped < 256
&& TOLOWER_LOC(keytyped) == TOLOWER_LOC((int)p[-1]))) {
line = get_cursor_pos_ptr();
assert(p >= look && (uintmax_t)(p - look) <= SIZE_MAX);
if ((curwin->w_cursor.col == (colnr_T)(p - look)
|| !vim_iswordc(line[-(p - look) - 1]))
&& (icase
? mb_strnicmp(line - (p - look), look, (size_t)(p - look))
: STRNCMP(line - (p - look), look, p - look)) == 0) {
match = true;
}
}
}
if (match && try_match_word && !try_match) {
/* "0=word": Check if there are only blanks before the
* word. */
if (getwhitecols_curline() !=
(int)(curwin->w_cursor.col - (p - look))) {
match = false;
}
}
if (match) {
return true;
}
}
look = p;
// Ok, it's a boring generic character.
} else {
if (try_match && *look == keytyped) {
return true;
}
if (*look != NUL) {
look++;
}
}
/*
* Skip over ", ".
*/
look = skip_to_option_part(look);
}
return false;
}
/*
* Map Hebrew keyboard when in hkmap mode.
*/
int hkmap(int c)
{
if (p_hkmapp) { /* phonetic mapping, by Ilya Dogolazky */
enum {hALEF=0, BET, GIMEL, DALET, HEI, VAV, ZAIN, HET, TET, IUD,
KAFsofit, hKAF, LAMED, MEMsofit, MEM, NUNsofit, NUN, SAMEH, AIN,
PEIsofit, PEI, ZADIsofit, ZADI, KOF, RESH, hSHIN, TAV};
static char_u map[26] =
{(char_u)hALEF /*a*/, (char_u)BET /*b*/, (char_u)hKAF /*c*/,
(char_u)DALET /*d*/, (char_u)-1 /*e*/, (char_u)PEIsofit /*f*/,
(char_u)GIMEL /*g*/, (char_u)HEI /*h*/, (char_u)IUD /*i*/,
(char_u)HET /*j*/, (char_u)KOF /*k*/, (char_u)LAMED /*l*/,
(char_u)MEM /*m*/, (char_u)NUN /*n*/, (char_u)SAMEH /*o*/,
(char_u)PEI /*p*/, (char_u)-1 /*q*/, (char_u)RESH /*r*/,
(char_u)ZAIN /*s*/, (char_u)TAV /*t*/, (char_u)TET /*u*/,
(char_u)VAV /*v*/, (char_u)hSHIN /*w*/, (char_u)-1 /*x*/,
(char_u)AIN /*y*/, (char_u)ZADI /*z*/};
if (c == 'N' || c == 'M' || c == 'P' || c == 'C' || c == 'Z')
return (int)(map[CharOrd(c)] - 1 + p_aleph);
/* '-1'='sofit' */
else if (c == 'x')
return 'X';
else if (c == 'q')
return '\''; /* {geresh}={'} */
else if (c == 246)
return ' '; /* \"o --> ' ' for a german keyboard */
else if (c == 228)
return ' '; /* \"a --> ' ' -- / -- */
else if (c == 252)
return ' '; /* \"u --> ' ' -- / -- */
/* NOTE: islower() does not do the right thing for us on Linux so we
* do this the same was as 5.7 and previous, so it works correctly on
* all systems. Specifically, the e.g. Delete and Arrow keys are
* munged and won't work if e.g. searching for Hebrew text.
*/
else if (c >= 'a' && c <= 'z')
return (int)(map[CharOrdLow(c)] + p_aleph);
else
return c;
} else {
switch (c) {
case '`': return ';';
case '/': return '.';
case '\'': return ',';
case 'q': return '/';
case 'w': return '\'';
/* Hebrew letters - set offset from 'a' */
case ',': c = '{'; break;
case '.': c = 'v'; break;
case ';': c = 't'; break;
default: {
static char str[] = "zqbcxlsjphmkwonu ydafe rig";
if (c < 'a' || c > 'z')
return c;
c = str[CharOrdLow(c)];
break;
}
}
return (int)(CharOrdLow(c) + p_aleph);
}
}
static void ins_reg(void)
{
int need_redraw = FALSE;
int regname;
int literally = 0;
int vis_active = VIsual_active;
/*
* If we are going to wait for a character, show a '"'.
*/
pc_status = PC_STATUS_UNSET;
if (redrawing() && !char_avail()) {
/* may need to redraw when no more chars available now */
ins_redraw(FALSE);
edit_putchar('"', TRUE);
add_to_showcmd_c(Ctrl_R);
}
/*
* Don't map the register name. This also prevents the mode message to be
* deleted when ESC is hit.
*/
++no_mapping;
regname = plain_vgetc();
LANGMAP_ADJUST(regname, TRUE);
if (regname == Ctrl_R || regname == Ctrl_O || regname == Ctrl_P) {
/* Get a third key for literal register insertion */
literally = regname;
add_to_showcmd_c(literally);
regname = plain_vgetc();
LANGMAP_ADJUST(regname, TRUE);
}
--no_mapping;
/* Don't call u_sync() while typing the expression or giving an error
* message for it. Only call it explicitly. */
++no_u_sync;
if (regname == '=') {
pos_T curpos = curwin->w_cursor;
// Sync undo when evaluating the expression calls setline() or
// append(), so that it can be undone separately.
u_sync_once = 2;
regname = get_expr_register();
// Cursor may be moved back a column.
curwin->w_cursor = curpos;
check_cursor();
}
if (regname == NUL || !valid_yank_reg(regname, false)) {
vim_beep(BO_REG);
need_redraw = true; // remove the '"'
} else {
if (literally == Ctrl_O || literally == Ctrl_P) {
/* Append the command to the redo buffer. */
AppendCharToRedobuff(Ctrl_R);
AppendCharToRedobuff(literally);
AppendCharToRedobuff(regname);
do_put(regname, NULL, BACKWARD, 1,
(literally == Ctrl_P ? PUT_FIXINDENT : 0) | PUT_CURSEND);
} else if (insert_reg(regname, literally) == FAIL) {
vim_beep(BO_REG);
need_redraw = true; // remove the '"'
} else if (stop_insert_mode) {
// When the '=' register was used and a function was invoked that
// did ":stopinsert" then stuff_empty() returns FALSE but we won't
// insert anything, need to remove the '"'
need_redraw = true;
}
}
--no_u_sync;
if (u_sync_once == 1)
ins_need_undo = TRUE;
u_sync_once = 0;
clear_showcmd();
/* If the inserted register is empty, we need to remove the '"' */
if (need_redraw || stuff_empty())
edit_unputchar();
/* Disallow starting Visual mode here, would get a weird mode. */
if (!vis_active && VIsual_active)
end_visual_mode();
}
/*
* CTRL-G commands in Insert mode.
*/
static void ins_ctrl_g(void)
{
int c;
/* Right after CTRL-X the cursor will be after the ruler. */
setcursor();
/*
* Don't map the second key. This also prevents the mode message to be
* deleted when ESC is hit.
*/
++no_mapping;
c = plain_vgetc();
--no_mapping;
switch (c) {
/* CTRL-G k and CTRL-G <Up>: cursor up to Insstart.col */
case K_UP:
case Ctrl_K:
case 'k': ins_up(TRUE);
break;
/* CTRL-G j and CTRL-G <Down>: cursor down to Insstart.col */
case K_DOWN:
case Ctrl_J:
case 'j': ins_down(TRUE);
break;
/* CTRL-G u: start new undoable edit */
case 'u': u_sync(TRUE);
ins_need_undo = TRUE;
/* Need to reset Insstart, esp. because a BS that joins
* a line to the previous one must save for undo. */
update_Insstart_orig = false;
Insstart = curwin->w_cursor;
break;
// CTRL-G U: do not break undo with the next char.
case 'U':
// Allow one left/right cursor movement with the next char,
// without breaking undo.
dont_sync_undo = kNone;
break;
/* Unknown CTRL-G command, reserved for future expansion. */
default: vim_beep(BO_CTRLG);
}
}
/*
* CTRL-^ in Insert mode.
*/
static void ins_ctrl_hat(void)
{
if (map_to_exists_mode("", LANGMAP, false)) {
// ":lmap" mappings exists, Toggle use of ":lmap" mappings.
if (State & LANGMAP) {
curbuf->b_p_iminsert = B_IMODE_NONE;
State &= ~LANGMAP;
} else {
curbuf->b_p_iminsert = B_IMODE_LMAP;
State |= LANGMAP;
}
}
set_iminsert_global();
showmode();
/* Show/unshow value of 'keymap' in status lines. */
status_redraw_curbuf();
}
/// Handle ESC in insert mode.
///
/// @param[in,out] count repeat count of the insert command
/// @param cmdchar command that started the insert
/// @param nomove when true, don't move the cursor
///
/// @return true when leaving insert mode, false when repeating the insert.
static bool ins_esc(long *count, int cmdchar, bool nomove)
FUNC_ATTR_NONNULL_ARG(1)
{
static bool disabled_redraw = false;
check_spell_redraw();
int temp = curwin->w_cursor.col;
if (disabled_redraw) {
RedrawingDisabled--;
disabled_redraw = false;
}
if (!arrow_used) {
// Don't append the ESC for "r<CR>" and "grx".
// When 'insertmode' is set only CTRL-L stops Insert mode. Needed for
// when "count" is non-zero.
if (cmdchar != 'r' && cmdchar != 'v') {
AppendToRedobuff(p_im ? "\014" : ESC_STR);
}
/*
* Repeating insert may take a long time. Check for
* interrupt now and then.
*/
if (*count > 0) {
line_breakcheck();
if (got_int)
*count = 0;
}
if (--*count > 0) { /* repeat what was typed */
/* Vi repeats the insert without replacing characters. */
if (vim_strchr(p_cpo, CPO_REPLCNT) != NULL)
State &= ~REPLACE_FLAG;
(void)start_redo_ins();
if (cmdchar == 'r' || cmdchar == 'v') {
stuffRedoReadbuff(ESC_STR); // No ESC in redo buffer
}
RedrawingDisabled++;
disabled_redraw = true;
// Repeat the insert
return false;
}
stop_insert(&curwin->w_cursor, TRUE, nomove);
undisplay_dollar();
}
/* When an autoindent was removed, curswant stays after the
* indent */
if (restart_edit == NUL && (colnr_T)temp == curwin->w_cursor.col)
curwin->w_set_curswant = TRUE;
/* Remember the last Insert position in the '^ mark. */
if (!cmdmod.keepjumps) {
RESET_FMARK(&curbuf->b_last_insert, curwin->w_cursor, curbuf->b_fnum);
}
/*
* The cursor should end up on the last inserted character.
* Don't do it for CTRL-O, unless past the end of the line.
*/
if (!nomove
&& (curwin->w_cursor.col != 0
|| curwin->w_cursor.coladd > 0
)
&& (restart_edit == NUL
|| (gchar_cursor() == NUL
&& !VIsual_active
))
&& !revins_on
) {
if (curwin->w_cursor.coladd > 0 || ve_flags == VE_ALL) {
oneleft();
if (restart_edit != NUL)
++curwin->w_cursor.coladd;
} else {
--curwin->w_cursor.col;
/* Correct cursor for multi-byte character. */
if (has_mbyte)
mb_adjust_cursor();
}
}
State = NORMAL;
/* need to position cursor again (e.g. when on a TAB ) */
changed_cline_bef_curs();
setmouse();
ui_cursor_shape(); /* may show different cursor shape */
// When recording or for CTRL-O, need to display the new mode.
// Otherwise remove the mode message.
if (reg_recording != 0 || restart_edit != NUL) {
showmode();
} else if (p_smd) {
MSG("");
}
// Exit Insert mode
return true;
}
/*
* Toggle language: hkmap and revins_on.
* Move to end of reverse inserted text.
*/
static void ins_ctrl_(void)
{
if (revins_on && revins_chars && revins_scol >= 0) {
while (gchar_cursor() != NUL && revins_chars--)
++curwin->w_cursor.col;
}
p_ri = !p_ri;
revins_on = (State == INSERT && p_ri);
if (revins_on) {
revins_scol = curwin->w_cursor.col;
revins_legal++;
revins_chars = 0;
undisplay_dollar();
} else
revins_scol = -1;
p_hkmap = curwin->w_p_rl ^ p_ri; // be consistent!
showmode();
}
/// If 'keymodel' contains "startsel", may start selection.
///
/// @param c character to check
//
/// @return true when a CTRL-O and other keys stuffed.
static bool ins_start_select(int c)
FUNC_ATTR_WARN_UNUSED_RESULT
{
if (!km_startsel) {
return false;
}
switch (c) {
case K_KHOME:
case K_KEND:
case K_PAGEUP:
case K_KPAGEUP:
case K_PAGEDOWN:
case K_KPAGEDOWN:
if (!(mod_mask & MOD_MASK_SHIFT))
break;
FALLTHROUGH;
case K_S_LEFT:
case K_S_RIGHT:
case K_S_UP:
case K_S_DOWN:
case K_S_END:
case K_S_HOME:
// Start selection right away, the cursor can move with
// CTRL-O when beyond the end of the line.
start_selection();
// Execute the key in (insert) Select mode.
stuffcharReadbuff(Ctrl_O);
if (mod_mask) {
const char buf[] = { (char)K_SPECIAL, (char)KS_MODIFIER,
(char)(uint8_t)mod_mask, NUL };
stuffReadbuff(buf);
}
stuffcharReadbuff(c);
return true;
}
return false;
}
/*
* <Insert> key in Insert mode: toggle insert/replace mode.
*/
static void ins_insert(int replaceState)
{
set_vim_var_string(VV_INSERTMODE, ((State & REPLACE_FLAG) ? "i" :
replaceState == VREPLACE ? "v" :
"r"), 1);
ins_apply_autocmds(EVENT_INSERTCHANGE);
if (State & REPLACE_FLAG) {
State = INSERT | (State & LANGMAP);
} else {
State = replaceState | (State & LANGMAP);
}
AppendCharToRedobuff(K_INS);
showmode();
ui_cursor_shape(); /* may show different cursor shape */
}
/*
* Pressed CTRL-O in Insert mode.
*/
static void ins_ctrl_o(void)
{
if (State & VREPLACE_FLAG)
restart_edit = 'V';
else if (State & REPLACE_FLAG)
restart_edit = 'R';
else
restart_edit = 'I';
if (virtual_active())
ins_at_eol = FALSE; /* cursor always keeps its column */
else
ins_at_eol = (gchar_cursor() == NUL);
}
/*
* If the cursor is on an indent, ^T/^D insert/delete one
* shiftwidth. Otherwise ^T/^D behave like a "<<" or ">>".
* Always round the indent to 'shiftwidth', this is compatible
* with vi. But vi only supports ^T and ^D after an
* autoindent, we support it everywhere.
*/
static void ins_shift(int c, int lastc)
{
if (stop_arrow() == FAIL)
return;
AppendCharToRedobuff(c);
/*
* 0^D and ^^D: remove all indent.
*/
if (c == Ctrl_D && (lastc == '0' || lastc == '^')
&& curwin->w_cursor.col > 0) {
curwin->w_cursor.col--;
(void)del_char(false); // delete the '^' or '0'
// In Replace mode, restore the characters that '^' or '0' replaced.
if (State & REPLACE_FLAG) {
replace_pop_ins();
}
if (lastc == '^') {
old_indent = get_indent(); // remember curr. indent
}
change_indent(INDENT_SET, 0, TRUE, 0, TRUE);
} else
change_indent(c == Ctrl_D ? INDENT_DEC : INDENT_INC, 0, TRUE, 0, TRUE);
if (did_ai && *skipwhite(get_cursor_line_ptr()) != NUL) {
did_ai = false;
}
did_si = false;
can_si = false;
can_si_back = false;
can_cindent = false; // no cindenting after ^D or ^T
}
static void ins_del(void)
{
if (stop_arrow() == FAIL) {
return;
}
if (gchar_cursor() == NUL) { // delete newline
const int temp = curwin->w_cursor.col;
if (!can_bs(BS_EOL) // only if "eol" included
|| do_join(2, false, true, false, false) == FAIL) {
vim_beep(BO_BS);
} else {
curwin->w_cursor.col = temp;
// Adjust orig_line_count in case more lines have been deleted than
// have been added. That makes sure, that open_line() later
// can access all buffer lines correctly
if (State & VREPLACE_FLAG
&& orig_line_count > curbuf->b_ml.ml_line_count) {
orig_line_count = curbuf->b_ml.ml_line_count;
}
}
} else if (del_char(false) == FAIL) { // delete char under cursor
vim_beep(BO_BS);
}
did_ai = false;
did_si = false;
can_si = false;
can_si_back = false;
AppendCharToRedobuff(K_DEL);
}
/*
* Delete one character for ins_bs().
*/
static void ins_bs_one(colnr_T *vcolp)
{
dec_cursor();
getvcol(curwin, &curwin->w_cursor, vcolp, NULL, NULL);
if (State & REPLACE_FLAG) {
/* Don't delete characters before the insert point when in
* Replace mode */
if (curwin->w_cursor.lnum != Insstart.lnum
|| curwin->w_cursor.col >= Insstart.col)
replace_do_bs(-1);
} else {
(void)del_char(false);
}
}
/// Handle Backspace, delete-word and delete-line in Insert mode.
///
/// @param c charcter that was typed
/// @param mode backspace mode to use
/// @param[in,out] inserted_space_p whether a space was the last
// character inserted
///
/// @return true when backspace was actually used.
static bool ins_bs(int c, int mode, int *inserted_space_p)
FUNC_ATTR_NONNULL_ARG(3)
{
linenr_T lnum;
int cc;
int temp = 0; /* init for GCC */
colnr_T save_col;
colnr_T mincol;
bool did_backspace = false;
int in_indent;
int oldState;
int cpc[MAX_MCO]; /* composing characters */
// can't delete anything in an empty file
// can't backup past first character in buffer
// can't backup past starting point unless 'backspace' > 1
// can backup to a previous line if 'backspace' == 0
if (BUFEMPTY()
|| (!revins_on
&& ((curwin->w_cursor.lnum == 1 && curwin->w_cursor.col == 0)
|| (!can_bs(BS_START)
&& (arrow_used
|| (curwin->w_cursor.lnum == Insstart_orig.lnum
&& curwin->w_cursor.col <= Insstart_orig.col)))
|| (!can_bs(BS_INDENT) && !arrow_used && ai_col > 0
&& curwin->w_cursor.col <= ai_col)
|| (!can_bs(BS_EOL) && curwin->w_cursor.col == 0)))) {
vim_beep(BO_BS);
return false;
}
if (stop_arrow() == FAIL) {
return false;
}
in_indent = inindent(0);
if (in_indent) {
can_cindent = false;
}
end_comment_pending = NUL; // After BS, don't auto-end comment
if (revins_on) { // put cursor after last inserted char
inc_cursor();
}
// Virtualedit:
// BACKSPACE_CHAR eats a virtual space
// BACKSPACE_WORD eats all coladd
// BACKSPACE_LINE eats all coladd and keeps going
if (curwin->w_cursor.coladd > 0) {
if (mode == BACKSPACE_CHAR) {
curwin->w_cursor.coladd--;
return true;
}
if (mode == BACKSPACE_WORD) {
curwin->w_cursor.coladd = 0;
return true;
}
curwin->w_cursor.coladd = 0;
}
// Delete newline!
if (curwin->w_cursor.col == 0) {
lnum = Insstart.lnum;
if (curwin->w_cursor.lnum == lnum || revins_on) {
if (u_save((linenr_T)(curwin->w_cursor.lnum - 2),
(linenr_T)(curwin->w_cursor.lnum + 1)) == FAIL) {
return false;
}
Insstart.lnum--;
Insstart.col = (colnr_T)STRLEN(ml_get(Insstart.lnum));
}
/*
* In replace mode:
* cc < 0: NL was inserted, delete it
* cc >= 0: NL was replaced, put original characters back
*/
cc = -1;
if (State & REPLACE_FLAG)
cc = replace_pop(); /* returns -1 if NL was inserted */
/*
* In replace mode, in the line we started replacing, we only move the
* cursor.
*/
if ((State & REPLACE_FLAG) && curwin->w_cursor.lnum <= lnum) {
dec_cursor();
} else {
if (!(State & VREPLACE_FLAG)
|| curwin->w_cursor.lnum > orig_line_count) {
temp = gchar_cursor(); /* remember current char */
--curwin->w_cursor.lnum;
/* When "aw" is in 'formatoptions' we must delete the space at
* the end of the line, otherwise the line will be broken
* again when auto-formatting. */
if (has_format_option(FO_AUTO)
&& has_format_option(FO_WHITE_PAR)) {
char_u *ptr = ml_get_buf(curbuf, curwin->w_cursor.lnum,
TRUE);
int len;
len = (int)STRLEN(ptr);
if (len > 0 && ptr[len - 1] == ' ')
ptr[len - 1] = NUL;
}
do_join(2, FALSE, FALSE, FALSE, false);
if (temp == NUL && gchar_cursor() != NUL)
inc_cursor();
} else
dec_cursor();
/*
* In REPLACE mode we have to put back the text that was replaced
* by the NL. On the replace stack is first a NUL-terminated
* sequence of characters that were deleted and then the
* characters that NL replaced.
*/
if (State & REPLACE_FLAG) {
/*
* Do the next ins_char() in NORMAL state, to
* prevent ins_char() from replacing characters and
* avoiding showmatch().
*/
oldState = State;
State = NORMAL;
/*
* restore characters (blanks) deleted after cursor
*/
while (cc > 0) {
save_col = curwin->w_cursor.col;
mb_replace_pop_ins(cc);
curwin->w_cursor.col = save_col;
cc = replace_pop();
}
/* restore the characters that NL replaced */
replace_pop_ins();
State = oldState;
}
}
did_ai = false;
} else {
/*
* Delete character(s) before the cursor.
*/
if (revins_on) /* put cursor on last inserted char */
dec_cursor();
mincol = 0;
/* keep indent */
if (mode == BACKSPACE_LINE
&& (curbuf->b_p_ai
|| cindent_on()
)
&& !revins_on
) {
save_col = curwin->w_cursor.col;
beginline(BL_WHITE);
if (curwin->w_cursor.col < save_col)
mincol = curwin->w_cursor.col;
curwin->w_cursor.col = save_col;
}
/*
* Handle deleting one 'shiftwidth' or 'softtabstop'.
*/
if ( mode == BACKSPACE_CHAR
&& ((p_sta && in_indent)
|| (get_sts_value() != 0
&& curwin->w_cursor.col > 0
&& (*(get_cursor_pos_ptr() - 1) == TAB
|| (*(get_cursor_pos_ptr() - 1) == ' '
&& (!*inserted_space_p
|| arrow_used)))))) {
int ts;
colnr_T vcol;
colnr_T want_vcol;
colnr_T start_vcol;
*inserted_space_p = FALSE;
if (p_sta && in_indent)
ts = get_sw_value(curbuf);
else
ts = get_sts_value();
/* Compute the virtual column where we want to be. Since
* 'showbreak' may get in the way, need to get the last column of
* the previous character. */
getvcol(curwin, &curwin->w_cursor, &vcol, NULL, NULL);
start_vcol = vcol;
dec_cursor();
getvcol(curwin, &curwin->w_cursor, NULL, NULL, &want_vcol);
inc_cursor();
want_vcol = (want_vcol / ts) * ts;
/* delete characters until we are at or before want_vcol */
while (vcol > want_vcol
&& (cc = *(get_cursor_pos_ptr() - 1), ascii_iswhite(cc)))
ins_bs_one(&vcol);
/* insert extra spaces until we are at want_vcol */
while (vcol < want_vcol) {
/* Remember the first char we inserted */
if (curwin->w_cursor.lnum == Insstart_orig.lnum
&& curwin->w_cursor.col < Insstart_orig.col) {
Insstart_orig.col = curwin->w_cursor.col;
}
if (State & VREPLACE_FLAG) {
ins_char(' ');
} else {
ins_str((char_u *)" ");
if ((State & REPLACE_FLAG))
replace_push(NUL);
}
getvcol(curwin, &curwin->w_cursor, &vcol, NULL, NULL);
}
/* If we are now back where we started delete one character. Can
* happen when using 'sts' and 'linebreak'. */
if (vcol >= start_vcol)
ins_bs_one(&vcol);
// Delete upto starting point, start of line or previous word.
} else {
int cclass = 0, prev_cclass = 0;
if (has_mbyte) {
cclass = mb_get_class(get_cursor_pos_ptr());
}
do {
if (!revins_on) { // put cursor on char to be deleted
dec_cursor();
}
cc = gchar_cursor();
// look multi-byte character class
if (has_mbyte) {
prev_cclass = cclass;
cclass = mb_get_class(get_cursor_pos_ptr());
}
if (mode == BACKSPACE_WORD && !ascii_isspace(cc)) { // start of word?
mode = BACKSPACE_WORD_NOT_SPACE;
temp = vim_iswordc(cc);
} else if (mode == BACKSPACE_WORD_NOT_SPACE
&& ((ascii_isspace(cc) || vim_iswordc(cc) != temp)
|| prev_cclass != cclass)) { // end of word?
if (!revins_on) {
inc_cursor();
} else if (State & REPLACE_FLAG) {
dec_cursor();
}
break;
}
if (State & REPLACE_FLAG)
replace_do_bs(-1);
else {
const bool l_enc_utf8 = enc_utf8;
const int l_p_deco = p_deco;
if (l_enc_utf8 && l_p_deco) {
(void)utfc_ptr2char(get_cursor_pos_ptr(), cpc);
}
(void)del_char(false);
// If there are combining characters and 'delcombine' is set
// move the cursor back. Don't back up before the base
// character.
if (l_enc_utf8 && l_p_deco && cpc[0] != NUL) {
inc_cursor();
}
if (revins_chars) {
revins_chars--;
revins_legal++;
}
if (revins_on && gchar_cursor() == NUL)
break;
}
// Just a single backspace?:
if (mode == BACKSPACE_CHAR) {
break;
}
} while (revins_on
|| (curwin->w_cursor.col > mincol
&& (curwin->w_cursor.lnum != Insstart_orig.lnum
|| curwin->w_cursor.col != Insstart_orig.col)));
}
did_backspace = true;
}
did_si = false;
can_si = false;
can_si_back = false;
if (curwin->w_cursor.col <= 1) {
did_ai = false;
}
// It's a little strange to put backspaces into the redo
// buffer, but it makes auto-indent a lot easier to deal
// with.
AppendCharToRedobuff(c);
/* If deleted before the insertion point, adjust it */
if (curwin->w_cursor.lnum == Insstart_orig.lnum
&& curwin->w_cursor.col < Insstart_orig.col) {
Insstart_orig.col = curwin->w_cursor.col;
}
/* vi behaviour: the cursor moves backward but the character that
* was there remains visible
* Vim behaviour: the cursor moves backward and the character that
* was there is erased from the screen.
* We can emulate the vi behaviour by pretending there is a dollar
* displayed even when there isn't.
* --pkv Sun Jan 19 01:56:40 EST 2003 */
if (vim_strchr(p_cpo, CPO_BACKSPACE) != NULL && dollar_vcol == -1)
dollar_vcol = curwin->w_virtcol;
// When deleting a char the cursor line must never be in a closed fold.
// E.g., when 'foldmethod' is indent and deleting the first non-white
// char before a Tab.
if (did_backspace) {
foldOpenCursor();
}
return did_backspace;
}
static void ins_mouse(int c)
{
pos_T tpos;
win_T *old_curwin = curwin;
if (!mouse_has(MOUSE_INSERT))
return;
undisplay_dollar();
tpos = curwin->w_cursor;
if (do_mouse(NULL, c, BACKWARD, 1, 0)) {
win_T *new_curwin = curwin;
if (curwin != old_curwin && win_valid(old_curwin)) {
/* Mouse took us to another window. We need to go back to the
* previous one to stop insert there properly. */
curwin = old_curwin;
curbuf = curwin->w_buffer;
}
start_arrow(curwin == old_curwin ? &tpos : NULL);
if (curwin != new_curwin && win_valid(new_curwin)) {
curwin = new_curwin;
curbuf = curwin->w_buffer;
}
can_cindent = true;
}
/* redraw status lines (in case another window became active) */
redraw_statuslines();
}
static void ins_mousescroll(int dir)
{
win_T *const old_curwin = curwin;
pos_T tpos = curwin->w_cursor;
if (mouse_row >= 0 && mouse_col >= 0) {
int row = mouse_row, col = mouse_col, grid = mouse_grid;
// find the window at the pointer coordinates
win_T *wp = mouse_find_win(&grid, &row, &col);
if (wp == NULL) {
return;
}
curwin = wp;
curbuf = curwin->w_buffer;
}
if (curwin == old_curwin)
undisplay_dollar();
/* Don't scroll the window in which completion is being done. */
if (!pum_visible()
|| curwin != old_curwin
) {
if (dir == MSCR_DOWN || dir == MSCR_UP) {
if (mod_mask & (MOD_MASK_SHIFT | MOD_MASK_CTRL))
scroll_redraw(dir,
(long)(curwin->w_botline - curwin->w_topline));
else
scroll_redraw(dir, 3L);
} else {
mouse_scroll_horiz(dir);
}
}
curwin->w_redr_status = TRUE;
curwin = old_curwin;
curbuf = curwin->w_buffer;
if (!equalpos(curwin->w_cursor, tpos)) {
start_arrow(&tpos);
can_cindent = true;
}
}
static void ins_left(void)
{
pos_T tpos;
const bool end_change = dont_sync_undo == kFalse; // end undoable change
if ((fdo_flags & FDO_HOR) && KeyTyped)
foldOpenCursor();
undisplay_dollar();
tpos = curwin->w_cursor;
if (oneleft() == OK) {
start_arrow_with_change(&tpos, end_change);
if (!end_change) {
AppendCharToRedobuff(K_LEFT);
}
/* If exit reversed string, position is fixed */
if (revins_scol != -1 && (int)curwin->w_cursor.col >= revins_scol)
revins_legal++;
revins_chars++;
} else if (vim_strchr(p_ww, '[') != NULL && curwin->w_cursor.lnum > 1) {
// if 'whichwrap' set for cursor in insert mode may go to previous line.
// always break undo when moving upwards/downwards, else undo may break
start_arrow(&tpos);
--(curwin->w_cursor.lnum);
coladvance((colnr_T)MAXCOL);
curwin->w_set_curswant = true; // so we stay at the end
} else {
vim_beep(BO_CRSR);
}
dont_sync_undo = kFalse;
}
static void ins_home(int c)
{
pos_T tpos;
if ((fdo_flags & FDO_HOR) && KeyTyped)
foldOpenCursor();
undisplay_dollar();
tpos = curwin->w_cursor;
if (c == K_C_HOME)
curwin->w_cursor.lnum = 1;
curwin->w_cursor.col = 0;
curwin->w_cursor.coladd = 0;
curwin->w_curswant = 0;
start_arrow(&tpos);
}
static void ins_end(int c)
{
pos_T tpos;
if ((fdo_flags & FDO_HOR) && KeyTyped)
foldOpenCursor();
undisplay_dollar();
tpos = curwin->w_cursor;
if (c == K_C_END)
curwin->w_cursor.lnum = curbuf->b_ml.ml_line_count;
coladvance((colnr_T)MAXCOL);
curwin->w_curswant = MAXCOL;
start_arrow(&tpos);
}
static void ins_s_left(void)
{
const bool end_change = dont_sync_undo == kFalse; // end undoable change
if ((fdo_flags & FDO_HOR) && KeyTyped) {
foldOpenCursor();
}
undisplay_dollar();
if (curwin->w_cursor.lnum > 1 || curwin->w_cursor.col > 0) {
start_arrow_with_change(&curwin->w_cursor, end_change);
if (!end_change) {
AppendCharToRedobuff(K_S_LEFT);
}
(void)bck_word(1L, false, false);
curwin->w_set_curswant = true;
} else {
vim_beep(BO_CRSR);
}
dont_sync_undo = kFalse;
}
/// @param end_change end undoable change
static void ins_right(void)
{
const bool end_change = dont_sync_undo == kFalse; // end undoable change
if ((fdo_flags & FDO_HOR) && KeyTyped) {
foldOpenCursor();
}
undisplay_dollar();
if (gchar_cursor() != NUL || virtual_active()) {
start_arrow_with_change(&curwin->w_cursor, end_change);
if (!end_change) {
AppendCharToRedobuff(K_RIGHT);
}
curwin->w_set_curswant = true;
if (virtual_active())
oneright();
else {
if (has_mbyte)
curwin->w_cursor.col += (*mb_ptr2len)(get_cursor_pos_ptr());
else
++curwin->w_cursor.col;
}
revins_legal++;
if (revins_chars)
revins_chars--;
}
/* if 'whichwrap' set for cursor in insert mode, may move the
* cursor to the next line */
else if (vim_strchr(p_ww, ']') != NULL
&& curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count) {
start_arrow(&curwin->w_cursor);
curwin->w_set_curswant = TRUE;
++curwin->w_cursor.lnum;
curwin->w_cursor.col = 0;
} else {
vim_beep(BO_CRSR);
}
dont_sync_undo = kFalse;
}
static void ins_s_right(void)
{
const bool end_change = dont_sync_undo == kFalse; // end undoable change
if ((fdo_flags & FDO_HOR) && KeyTyped) {
foldOpenCursor();
}
undisplay_dollar();
if (curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count
|| gchar_cursor() != NUL) {
start_arrow_with_change(&curwin->w_cursor, end_change);
if (!end_change) {
AppendCharToRedobuff(K_S_RIGHT);
}
(void)fwd_word(1L, false, 0);
curwin->w_set_curswant = true;
} else {
vim_beep(BO_CRSR);
}
dont_sync_undo = kFalse;
}
static void
ins_up (
int startcol /* when TRUE move to Insstart.col */
)
{
pos_T tpos;
linenr_T old_topline = curwin->w_topline;
int old_topfill = curwin->w_topfill;
undisplay_dollar();
tpos = curwin->w_cursor;
if (cursor_up(1L, TRUE) == OK) {
if (startcol)
coladvance(getvcol_nolist(&Insstart));
if (old_topline != curwin->w_topline
|| old_topfill != curwin->w_topfill
)
redraw_later(VALID);
start_arrow(&tpos);
can_cindent = true;
} else {
vim_beep(BO_CRSR);
}
}
static void ins_pageup(void)
{
pos_T tpos;
undisplay_dollar();
if (mod_mask & MOD_MASK_CTRL) {
/* <C-PageUp>: tab page back */
if (first_tabpage->tp_next != NULL) {
start_arrow(&curwin->w_cursor);
goto_tabpage(-1);
}
return;
}
tpos = curwin->w_cursor;
if (onepage(BACKWARD, 1L) == OK) {
start_arrow(&tpos);
can_cindent = true;
} else {
vim_beep(BO_CRSR);
}
}
static void
ins_down (
int startcol /* when TRUE move to Insstart.col */
)
{
pos_T tpos;
linenr_T old_topline = curwin->w_topline;
int old_topfill = curwin->w_topfill;
undisplay_dollar();
tpos = curwin->w_cursor;
if (cursor_down(1L, TRUE) == OK) {
if (startcol)
coladvance(getvcol_nolist(&Insstart));
if (old_topline != curwin->w_topline
|| old_topfill != curwin->w_topfill
)
redraw_later(VALID);
start_arrow(&tpos);
can_cindent = true;
} else {
vim_beep(BO_CRSR);
}
}
static void ins_pagedown(void)
{
pos_T tpos;
undisplay_dollar();
if (mod_mask & MOD_MASK_CTRL) {
/* <C-PageDown>: tab page forward */
if (first_tabpage->tp_next != NULL) {
start_arrow(&curwin->w_cursor);
goto_tabpage(0);
}
return;
}
tpos = curwin->w_cursor;
if (onepage(FORWARD, 1L) == OK) {
start_arrow(&tpos);
can_cindent = true;
} else {
vim_beep(BO_CRSR);
}
}
/// Handle TAB in Insert or Replace mode.
///
/// @return true when the TAB needs to be inserted like a normal character.
static bool ins_tab(void)
FUNC_ATTR_WARN_UNUSED_RESULT
{
int i;
int temp;
if (Insstart_blank_vcol == MAXCOL && curwin->w_cursor.lnum == Insstart.lnum) {
Insstart_blank_vcol = get_nolist_virtcol();
}
if (echeck_abbr(TAB + ABBR_OFF)) {
return false;
}
int ind = inindent(0);
if (ind) {
can_cindent = false;
}
// When nothing special, insert TAB like a normal character
if (!curbuf->b_p_et
&& !(p_sta && ind && curbuf->b_p_ts != get_sw_value(curbuf))
&& get_sts_value() == 0) {
return true;
}
if (stop_arrow() == FAIL) {
return true;
}
did_ai = false;
did_si = false;
can_si = false;
can_si_back = false;
AppendToRedobuff("\t");
if (p_sta && ind) { // insert tab in indent, use "shiftwidth"
temp = get_sw_value(curbuf);
} else if (curbuf->b_p_sts != 0) { // use "softtabstop" when set
temp = get_sts_value();
} else { // otherwise use "tabstop"
temp = (int)curbuf->b_p_ts;
}
temp -= get_nolist_virtcol() % temp;
/*
* Insert the first space with ins_char(). It will delete one char in
* replace mode. Insert the rest with ins_str(); it will not delete any
* chars. For VREPLACE mode, we use ins_char() for all characters.
*/
ins_char(' ');
while (--temp > 0) {
if (State & VREPLACE_FLAG) {
ins_char(' ');
} else {
ins_str((char_u *)" ");
if (State & REPLACE_FLAG) { // no char replaced
replace_push(NUL);
}
}
}
/*
* When 'expandtab' not set: Replace spaces by TABs where possible.
*/
if (!curbuf->b_p_et && (get_sts_value() || (p_sta && ind))) {
char_u *ptr;
char_u *saved_line = NULL; /* init for GCC */
pos_T pos;
pos_T fpos;
pos_T *cursor;
colnr_T want_vcol, vcol;
int change_col = -1;
int save_list = curwin->w_p_list;
/*
* Get the current line. For VREPLACE mode, don't make real changes
* yet, just work on a copy of the line.
*/
if (State & VREPLACE_FLAG) {
pos = curwin->w_cursor;
cursor = &pos;
saved_line = vim_strsave(get_cursor_line_ptr());
ptr = saved_line + pos.col;
} else {
ptr = get_cursor_pos_ptr();
cursor = &curwin->w_cursor;
}
/* When 'L' is not in 'cpoptions' a tab always takes up 'ts' spaces. */
if (vim_strchr(p_cpo, CPO_LISTWM) == NULL)
curwin->w_p_list = FALSE;
/* Find first white before the cursor */
fpos = curwin->w_cursor;
while (fpos.col > 0 && ascii_iswhite(ptr[-1])) {
--fpos.col;
--ptr;
}
/* In Replace mode, don't change characters before the insert point. */
if ((State & REPLACE_FLAG)
&& fpos.lnum == Insstart.lnum
&& fpos.col < Insstart.col) {
ptr += Insstart.col - fpos.col;
fpos.col = Insstart.col;
}
/* compute virtual column numbers of first white and cursor */
getvcol(curwin, &fpos, &vcol, NULL, NULL);
getvcol(curwin, cursor, &want_vcol, NULL, NULL);
/* Use as many TABs as possible. Beware of 'breakindent', 'showbreak'
and 'linebreak' adding extra virtual columns. */
while (ascii_iswhite(*ptr)) {
i = lbr_chartabsize(NULL, (char_u *)"\t", vcol);
if (vcol + i > want_vcol)
break;
if (*ptr != TAB) {
*ptr = TAB;
if (change_col < 0) {
change_col = fpos.col; /* Column of first change */
/* May have to adjust Insstart */
if (fpos.lnum == Insstart.lnum && fpos.col < Insstart.col)
Insstart.col = fpos.col;
}
}
++fpos.col;
++ptr;
vcol += i;
}
if (change_col >= 0) {
int repl_off = 0;
char_u *line = ptr;
/* Skip over the spaces we need. */
while (vcol < want_vcol && *ptr == ' ') {
vcol += lbr_chartabsize(line, ptr, vcol);
++ptr;
++repl_off;
}
if (vcol > want_vcol) {
/* Must have a char with 'showbreak' just before it. */
--ptr;
--repl_off;
}
fpos.col += repl_off;
/* Delete following spaces. */
i = cursor->col - fpos.col;
if (i > 0) {
STRMOVE(ptr, ptr + i);
/* correct replace stack. */
if ((State & REPLACE_FLAG)
&& !(State & VREPLACE_FLAG)
)
for (temp = i; --temp >= 0; )
replace_join(repl_off);
}
cursor->col -= i;
/*
* In VREPLACE mode, we haven't changed anything yet. Do it now by
* backspacing over the changed spacing and then inserting the new
* spacing.
*/
if (State & VREPLACE_FLAG) {
/* Backspace from real cursor to change_col */
backspace_until_column(change_col);
/* Insert each char in saved_line from changed_col to
* ptr-cursor */
ins_bytes_len(saved_line + change_col,
cursor->col - change_col);
}
}
if (State & VREPLACE_FLAG)
xfree(saved_line);
curwin->w_p_list = save_list;
}
return false;
}
/// Handle CR or NL in insert mode.
///
/// @return false when it can't undo.
static bool ins_eol(int c)
{
if (echeck_abbr(c + ABBR_OFF)) {
return true;
}
if (stop_arrow() == FAIL) {
return false;
}
undisplay_dollar();
/*
* Strange Vi behaviour: In Replace mode, typing a NL will not delete the
* character under the cursor. Only push a NUL on the replace stack,
* nothing to put back when the NL is deleted.
*/
if ((State & REPLACE_FLAG)
&& !(State & VREPLACE_FLAG)
)
replace_push(NUL);
/*
* In VREPLACE mode, a NL replaces the rest of the line, and starts
* replacing the next line, so we push all of the characters left on the
* line onto the replace stack. This is not done here though, it is done
* in open_line().
*/
/* Put cursor on NUL if on the last char and coladd is 1 (happens after
* CTRL-O). */
if (virtual_active() && curwin->w_cursor.coladd > 0)
coladvance(getviscol());
// NL in reverse insert will always start in the end of current line.
if (revins_on) {
curwin->w_cursor.col += (colnr_T)STRLEN(get_cursor_pos_ptr());
}
AppendToRedobuff(NL_STR);
bool i = open_line(FORWARD,
has_format_option(FO_RET_COMS) ? OPENLINE_DO_COM : 0,
old_indent);
old_indent = 0;
can_cindent = true;
// When inserting a line the cursor line must never be in a closed fold.
foldOpenCursor();
return i;
}
/*
* Handle digraph in insert mode.
* Returns character still to be inserted, or NUL when nothing remaining to be
* done.
*/
static int ins_digraph(void)
{
int c;
int cc;
int did_putchar = FALSE;
pc_status = PC_STATUS_UNSET;
if (redrawing() && !char_avail()) {
/* may need to redraw when no more chars available now */
ins_redraw(FALSE);
edit_putchar('?', TRUE);
did_putchar = TRUE;
add_to_showcmd_c(Ctrl_K);
}
// don't map the digraph chars. This also prevents the
// mode message to be deleted when ESC is hit
no_mapping++;
c = plain_vgetc();
no_mapping--;
if (did_putchar) {
// when the line fits in 'columns' the '?' is at the start of the next
// line and will not be removed by the redraw
edit_unputchar();
}
if (IS_SPECIAL(c) || mod_mask) { /* special key */
clear_showcmd();
insert_special(c, TRUE, FALSE);
return NUL;
}
if (c != ESC) {
did_putchar = FALSE;
if (redrawing() && !char_avail()) {
/* may need to redraw when no more chars available now */
ins_redraw(FALSE);
if (char2cells(c) == 1) {
ins_redraw(FALSE);
edit_putchar(c, TRUE);
did_putchar = TRUE;
}
add_to_showcmd_c(c);
}
no_mapping++;
cc = plain_vgetc();
no_mapping--;
if (did_putchar) {
// when the line fits in 'columns' the '?' is at the start of the
// next line and will not be removed by a redraw
edit_unputchar();
}
if (cc != ESC) {
AppendToRedobuff(CTRL_V_STR);
c = getdigraph(c, cc, true);
clear_showcmd();
return c;
}
}
clear_showcmd();
return NUL;
}
/*
* Handle CTRL-E and CTRL-Y in Insert mode: copy char from other line.
* Returns the char to be inserted, or NUL if none found.
*/
int ins_copychar(linenr_T lnum)
{
int c;
int temp;
char_u *ptr, *prev_ptr;
char_u *line;
if (lnum < 1 || lnum > curbuf->b_ml.ml_line_count) {
vim_beep(BO_COPY);
return NUL;
}
/* try to advance to the cursor column */
temp = 0;
line = ptr = ml_get(lnum);
prev_ptr = ptr;
validate_virtcol();
while ((colnr_T)temp < curwin->w_virtcol && *ptr != NUL) {
prev_ptr = ptr;
temp += lbr_chartabsize_adv(line, &ptr, (colnr_T)temp);
}
if ((colnr_T)temp > curwin->w_virtcol)
ptr = prev_ptr;
c = utf_ptr2char(ptr);
if (c == NUL) {
vim_beep(BO_COPY);
}
return c;
}
/*
* CTRL-Y or CTRL-E typed in Insert mode.
*/
static int ins_ctrl_ey(int tc)
{
int c = tc;
if (ctrl_x_mode == CTRL_X_SCROLL) {
if (c == Ctrl_Y)
scrolldown_clamp();
else
scrollup_clamp();
redraw_later(VALID);
} else {
c = ins_copychar(curwin->w_cursor.lnum + (c == Ctrl_Y ? -1 : 1));
if (c != NUL) {
long tw_save;
// The character must be taken literally, insert like it
// was typed after a CTRL-V, and pretend 'textwidth'
// wasn't set. Digits, 'o' and 'x' are special after a
// CTRL-V, don't use it for these.
if (c < 256 && !isalnum(c)) {
AppendToRedobuff(CTRL_V_STR);
}
tw_save = curbuf->b_p_tw;
curbuf->b_p_tw = -1;
insert_special(c, TRUE, FALSE);
curbuf->b_p_tw = tw_save;
revins_chars++;
revins_legal++;
c = Ctrl_V; /* pretend CTRL-V is last character */
auto_format(FALSE, TRUE);
}
}
return c;
}
/*
* Try to do some very smart auto-indenting.
* Used when inserting a "normal" character.
*/
static void ins_try_si(int c)
{
pos_T *pos, old_pos;
char_u *ptr;
int i;
int temp;
/*
* do some very smart indenting when entering '{' or '}'
*/
if (((did_si || can_si_back) && c == '{') || (can_si && c == '}')) {
/*
* for '}' set indent equal to indent of line containing matching '{'
*/
if (c == '}' && (pos = findmatch(NULL, '{')) != NULL) {
old_pos = curwin->w_cursor;
/*
* If the matching '{' has a ')' immediately before it (ignoring
* white-space), then line up with the start of the line
* containing the matching '(' if there is one. This handles the
* case where an "if (..\n..) {" statement continues over multiple
* lines -- webb
*/
ptr = ml_get(pos->lnum);
i = pos->col;
if (i > 0) /* skip blanks before '{' */
while (--i > 0 && ascii_iswhite(ptr[i]))
;
curwin->w_cursor.lnum = pos->lnum;
curwin->w_cursor.col = i;
if (ptr[i] == ')' && (pos = findmatch(NULL, '(')) != NULL)
curwin->w_cursor = *pos;
i = get_indent();
curwin->w_cursor = old_pos;
if (State & VREPLACE_FLAG)
change_indent(INDENT_SET, i, FALSE, NUL, TRUE);
else
(void)set_indent(i, SIN_CHANGED);
} else if (curwin->w_cursor.col > 0) {
/*
* when inserting '{' after "O" reduce indent, but not
* more than indent of previous line
*/
temp = TRUE;
if (c == '{' && can_si_back && curwin->w_cursor.lnum > 1) {
old_pos = curwin->w_cursor;
i = get_indent();
while (curwin->w_cursor.lnum > 1) {
ptr = skipwhite(ml_get(--(curwin->w_cursor.lnum)));
/* ignore empty lines and lines starting with '#'. */
if (*ptr != '#' && *ptr != NUL)
break;
}
if (get_indent() >= i)
temp = FALSE;
curwin->w_cursor = old_pos;
}
if (temp)
shift_line(TRUE, FALSE, 1, TRUE);
}
}
/*
* set indent of '#' always to 0
*/
if (curwin->w_cursor.col > 0 && can_si && c == '#') {
/* remember current indent for next line */
old_indent = get_indent();
(void)set_indent(0, SIN_CHANGED);
}
/* Adjust ai_col, the char at this position can be deleted. */
if (ai_col > curwin->w_cursor.col)
ai_col = curwin->w_cursor.col;
}
/*
* Get the value that w_virtcol would have when 'list' is off.
* Unless 'cpo' contains the 'L' flag.
*/
static colnr_T get_nolist_virtcol(void)
{
if (curwin->w_p_list && vim_strchr(p_cpo, CPO_LISTWM) == NULL)
return getvcol_nolist(&curwin->w_cursor);
validate_virtcol();
return curwin->w_virtcol;
}
/*
* Handle the InsertCharPre autocommand.
* "c" is the character that was typed.
* Return a pointer to allocated memory with the replacement string.
* Return NULL to continue inserting "c".
*/
static char_u *do_insert_char_pre(int c)
{
char buf[MB_MAXBYTES + 1];
const int save_State = State;
// Return quickly when there is nothing to do.
if (!has_event(EVENT_INSERTCHARPRE)) {
return NULL;
}
buf[utf_char2bytes(c, (char_u *)buf)] = NUL;
// Lock the text to avoid weird things from happening.
textlock++;
set_vim_var_string(VV_CHAR, buf, -1);
char_u *res = NULL;
if (ins_apply_autocmds(EVENT_INSERTCHARPRE)) {
// Get the value of v:char. It may be empty or more than one
// character. Only use it when changed, otherwise continue with the
// original character to avoid breaking autoindent.
if (STRCMP(buf, get_vim_var_str(VV_CHAR)) != 0) {
res = vim_strsave(get_vim_var_str(VV_CHAR));
}
}
set_vim_var_string(VV_CHAR, NULL, -1);
textlock--;
// Restore the State, it may have been changed.
State = save_State;
return res;
}
/// Trigger "event" and take care of fixing undo.
static int ins_apply_autocmds(event_T event)
{
varnumber_T tick = buf_get_changedtick(curbuf);
int r;
r = apply_autocmds(event, NULL, NULL, false, curbuf);
// If u_savesub() was called then we are not prepared to start
// a new line. Call u_save() with no contents to fix that.
if (tick != buf_get_changedtick(curbuf)) {
u_save(curwin->w_cursor.lnum, (linenr_T)(curwin->w_cursor.lnum + 1));
}
return r;
}
static void show_pum(int prev_w_wrow, int prev_w_leftcol)
{
// RedrawingDisabled may be set when invoked through complete().
int n = RedrawingDisabled;
RedrawingDisabled = 0;
// If the cursor moved or the display scrolled we need to remove the pum
// first.
setcursor();
if (prev_w_wrow != curwin->w_wrow || prev_w_leftcol != curwin->w_leftcol) {
ins_compl_del_pum();
}
ins_compl_show_pum();
setcursor();
RedrawingDisabled = n;
}