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Vim/src/insexpand.c

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/* vi:set ts=8 sts=4 sw=4 noet:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* insexpand.c: functions for Insert mode completion
*/
#include "vim.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[] below.
*/
# 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]
// 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.
};
#if defined(FEAT_COMPL_FUNC) || defined(FEAT_EVAL)
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"
};
#endif
/*
* Array indexes used for cp_text[].
*/
#define CPT_ABBR 0 // "abbr"
#define CPT_MENU 1 // "menu"
#define CPT_KIND 2 // "kind"
#define CPT_INFO 3 // "info"
#define CPT_COUNT 4 // Number of entries
/*
* 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
#ifdef FEAT_EVAL
typval_T cp_user_data;
#endif
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
};
// values for cp_flags
# define CP_ORIGINAL_TEXT 1 // the original text when the expansion begun
# define CP_FREE_FNAME 2 // cp_fname is allocated
# define CP_CONT_S_IPOS 4 // use CONT_S_IPOS for compl_cont_status
# define CP_EQUAL 8 // ins_compl_equal() always returns TRUE
# define CP_ICASE 16 // ins_compl_equal() ignores case
static char e_hitend[] = N_("Hit end of paragraph");
# ifdef FEAT_COMPL_FUNC
static char e_complwin[] = N_("E839: Completion function changed window");
static char e_compldel[] = N_("E840: Completion function deleted text");
# endif
/*
* 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
// Selected one of the matches. When FALSE the match was edited or using the
// longest common string.
static int compl_used_match;
// didn't finish finding completions.
static int compl_was_interrupted = FALSE;
// Set when character typed while looking for matches and it means we should
// stop looking for matches.
static int compl_interrupted = FALSE;
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 int 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 compl_opt_suppress_empty = FALSE;
static int ins_compl_add(char_u *str, int len, char_u *fname, char_u **cptext, typval_T *user_data, int cdir, int flags, int adup);
static void ins_compl_longest_match(compl_T *match);
static void ins_compl_del_pum(void);
static void ins_compl_files(int count, char_u **files, int thesaurus, int flags, regmatch_T *regmatch, char_u *buf, int *dir);
static char_u *find_line_end(char_u *ptr);
static void ins_compl_free(void);
static int ins_compl_need_restart(void);
static void ins_compl_new_leader(void);
static int ins_compl_len(void);
static void ins_compl_restart(void);
static void ins_compl_set_original_text(char_u *str);
static void ins_compl_fixRedoBufForLeader(char_u *ptr_arg);
# if defined(FEAT_COMPL_FUNC) || defined(FEAT_EVAL)
static void ins_compl_add_list(list_T *list);
static void ins_compl_add_dict(dict_T *dict);
# endif
static int ins_compl_key2dir(int c);
static int ins_compl_pum_key(int c);
static int ins_compl_key2count(int c);
static void show_pum(int prev_w_wrow, int prev_w_leftcol);
static unsigned quote_meta(char_u *dest, char_u *str, int len);
#ifdef FEAT_SPELL
static void spell_back_to_badword(void);
static int spell_bad_len = 0; // length of located bad word
#endif
/*
* CTRL-X pressed in Insert mode.
*/
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();
}
}
/*
* Functions to check the current CTRL-X mode.
*/
int ctrl_x_mode_none(void) { return ctrl_x_mode == 0; }
int ctrl_x_mode_normal(void) { return ctrl_x_mode == CTRL_X_NORMAL; }
int ctrl_x_mode_scroll(void) { return ctrl_x_mode == CTRL_X_SCROLL; }
int ctrl_x_mode_whole_line(void) { return ctrl_x_mode == CTRL_X_WHOLE_LINE; }
int ctrl_x_mode_files(void) { return ctrl_x_mode == CTRL_X_FILES; }
int ctrl_x_mode_tags(void) { return ctrl_x_mode == CTRL_X_TAGS; }
int ctrl_x_mode_path_patterns(void) {
return ctrl_x_mode == CTRL_X_PATH_PATTERNS; }
int ctrl_x_mode_path_defines(void) {
return ctrl_x_mode == CTRL_X_PATH_DEFINES; }
int ctrl_x_mode_dictionary(void) { return ctrl_x_mode == CTRL_X_DICTIONARY; }
int ctrl_x_mode_thesaurus(void) { return ctrl_x_mode == CTRL_X_THESAURUS; }
int ctrl_x_mode_cmdline(void) { return ctrl_x_mode == CTRL_X_CMDLINE; }
int ctrl_x_mode_function(void) { return ctrl_x_mode == CTRL_X_FUNCTION; }
int ctrl_x_mode_omni(void) { return ctrl_x_mode == CTRL_X_OMNI; }
int ctrl_x_mode_spell(void) { return ctrl_x_mode == CTRL_X_SPELL; }
int ctrl_x_mode_line_or_eval(void) {
return ctrl_x_mode == CTRL_X_WHOLE_LINE || ctrl_x_mode == CTRL_X_EVAL; }
/*
* Whether other than default completion has been selected.
*/
int
ctrl_x_mode_not_default(void)
{
return ctrl_x_mode != CTRL_X_NORMAL;
}
/*
* Whether CTRL-X was typed without a following character.
*/
int
ctrl_x_mode_not_defined_yet(void)
{
return ctrl_x_mode == CTRL_X_NOT_DEFINED_YET;
}
/*
* Return TRUE if the 'dict' or 'tsr' option can be used.
*/
int
has_compl_option(int dict_opt)
{
if (dict_opt ? (*curbuf->b_p_dict == NUL && *p_dict == NUL
#ifdef FEAT_SPELL
&& !curwin->w_p_spell
#endif
)
: (*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();
out_flush();
#ifdef FEAT_EVAL
if (!get_vim_var_nr(VV_TESTING))
#endif
ui_delay(2004L, FALSE);
}
return FALSE;
}
return TRUE;
}
/*
* Is the character 'c' a valid key to go to or keep us in CTRL-X mode?
* This depends on the current mode.
*/
int
vim_is_ctrl_x_key(int c)
{
// 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);
#ifdef FEAT_FIND_ID
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);
#endif
case CTRL_X_CMDLINE:
return (c == Ctrl_V || c == Ctrl_Q || c == Ctrl_P || c == Ctrl_N
|| c == Ctrl_X);
#ifdef FEAT_COMPL_FUNC
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);
#endif
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;
}
/*
* Return TRUE when character "c" is part of the item currently being
* completed. Used to decide whether to abandon complete mode when the menu
* is visible.
*/
int
ins_compl_accept_char(int c)
{
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) && !VIM_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
*/
int
ins_compl_add_infercase(
char_u *str_arg,
int len,
int icase,
char_u *fname,
int dir,
int cont_s_ipos) // next ^X<> will set initial_pos
{
char_u *str = str_arg;
char_u *p;
int i, c;
int actual_len; // Take multi-byte characters
int actual_compl_length; // into account.
int min_len;
int *wca; // Wide character array.
int has_lower = FALSE;
int 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)
{
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)
{
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.
wca = ALLOC_MULT(int, actual_len);
if (wca != NULL)
{
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?
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)
{
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.
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.
p = IObuff;
i = 0;
while (i < actual_len && (p - IObuff + 6) < IOSIZE)
if (has_mbyte)
p += (*mb_char2bytes)(wca[i++], p);
else
*(p++) = wca[i++];
*p = NUL;
vim_free(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, NULL, dir, flags, FALSE);
}
/*
* Add a match to the list of matches.
* If the given string is already in the list of completions, then return
* NOTDONE, otherwise add it to the list and return OK. If there is an error,
* maybe because alloc() returns NULL, then FAIL is returned.
*/
static int
ins_compl_add(
char_u *str,
int len,
char_u *fname,
char_u **cptext, // extra text for popup menu or NULL
typval_T *user_data UNUSED, // "user_data" entry or NULL
int cdir,
int flags_arg,
int adup) // accept duplicate match
{
compl_T *match;
int dir = (cdir == 0 ? compl_direction : cdir);
int flags = flags_arg;
ui_breakcheck();
if (got_int)
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)
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 = ALLOC_CLEAR_ONE(compl_T);
if (match == NULL)
return FAIL;
match->cp_number = -1;
if (flags & CP_ORIGINAL_TEXT)
match->cp_number = 0;
if ((match->cp_str = vim_strnsave(str, len)) == NULL)
{
vim_free(match);
return FAIL;
}
// 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 && *cptext[i] != NUL)
match->cp_text[i] = vim_strsave(cptext[i]);
}
#ifdef FEAT_EVAL
if (user_data != NULL)
match->cp_user_data = *user_data;
#endif
// 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;
}
/*
* Return TRUE if "str[len]" matches with match->cp_str, considering
* match->cp_flags.
*/
static int
ins_compl_equal(compl_T *match, char_u *str, int len)
{
if (match->cp_flags & CP_EQUAL)
return TRUE;
if (match->cp_flags & CP_ICASE)
return STRNICMP(match->cp_str, str, (size_t)len) == 0;
return STRNCMP(match->cp_str, str, (size_t)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);
if (compl_leader != NULL)
{
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)
{
if (has_mbyte)
{
c1 = mb_ptr2char(p);
c2 = mb_ptr2char(s);
}
else
{
c1 = *p;
c2 = *s;
}
if ((match->cp_flags & CP_ICASE)
? (MB_TOLOWER(c1) != MB_TOLOWER(c2)) : (c1 != c2))
break;
if (has_mbyte)
{
MB_PTR_ADV(p);
MB_PTR_ADV(s);
}
else
{
++p;
++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)
{
int i;
int add_r = OK;
int dir = compl_direction;
for (i = 0; i < num_matches && add_r != FAIL; i++)
if ((add_r = ins_compl_add(matches[i], -1, NULL, NULL, NULL, 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;
}
/*
* Return whether there currently is a shown match.
*/
int
ins_compl_has_shown_match(void)
{
return compl_shown_match == NULL
|| compl_shown_match != compl_shown_match->cp_next;
}
/*
* Return whether the shown match is long enough.
*/
int
ins_compl_long_shown_match(void)
{
return (int)STRLEN(compl_shown_match->cp_str)
> curwin->w_cursor.col - compl_col;
}
/*
* 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;
}
// "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;
/*
* Update the screen and when there is any scrolling remove the popup menu.
*/
static void
ins_compl_upd_pum(void)
{
int h;
if (compl_match_array != NULL)
{
h = curwin->w_cline_height;
// Update the screen later, before drawing the popup menu over it.
pum_call_update_screen();
if (h != curwin->w_cline_height)
ins_compl_del_pum();
}
}
/*
* Remove any popup menu.
*/
static void
ins_compl_del_pum(void)
{
if (compl_match_array != NULL)
{
pum_undisplay();
VIM_CLEAR(compl_match_array);
}
}
/*
* Return TRUE if the popup menu should be displayed.
*/
int
pum_wanted(void)
{
// 'completeopt' must contain "menu" or "menuone"
if (vim_strchr(p_cot, 'm') == NULL)
return FALSE;
// The display looks bad on a B&W display.
if (t_colors < 8
#ifdef FEAT_GUI
&& !gui.in_use
#endif
)
return FALSE;
return TRUE;
}
/*
* Return TRUE if there are two or more matches to be shown in the popup menu.
* One if 'completopt' contains "menuone".
*/
static int
pum_enough_matches(void)
{
compl_T *compl;
int i;
// Don't display the popup menu if there are no matches or there is only
// one (ignoring the original text).
compl = compl_first_match;
i = 0;
do
{
if (compl == NULL
|| ((compl->cp_flags & CP_ORIGINAL_TEXT) == 0 && ++i == 2))
break;
compl = compl->cp_next;
} while (compl != compl_first_match);
if (strstr((char *)p_cot, "menuone") != NULL)
return (i >= 1);
return (i >= 2);
}
#ifdef FEAT_EVAL
/*
* Allocate Dict for the completed item.
* { word, abbr, menu, kind, info }
*/
static dict_T *
ins_compl_dict_alloc(compl_T *match)
{
dict_T *dict = dict_alloc_lock(VAR_FIXED);
if (dict != NULL)
{
dict_add_string(dict, "word", match->cp_str);
dict_add_string(dict, "abbr", match->cp_text[CPT_ABBR]);
dict_add_string(dict, "menu", match->cp_text[CPT_MENU]);
dict_add_string(dict, "kind", match->cp_text[CPT_KIND]);
dict_add_string(dict, "info", match->cp_text[CPT_INFO]);
if (match->cp_user_data.v_type == VAR_UNKNOWN)
dict_add_string(dict, "user_data", (char_u *)"");
else
dict_add_tv(dict, "user_data", &match->cp_user_data);
}
return dict;
}
static void
trigger_complete_changed_event(int cur)
{
dict_T *v_event;
dict_T *item;
static int recursive = FALSE;
if (recursive)
return;
v_event = get_vim_var_dict(VV_EVENT);
if (cur < 0)
item = dict_alloc();
else
item = ins_compl_dict_alloc(compl_curr_match);
if (item == NULL)
return;
dict_add_dict(v_event, "completed_item", item);
pum_set_event_info(v_event);
dict_set_items_ro(v_event);
recursive = TRUE;
textlock++;
apply_autocmds(EVENT_COMPLETECHANGED, NULL, NULL, FALSE, curbuf);
textlock--;
recursive = FALSE;
dict_free_contents(v_event);
hash_init(&v_event->dv_hashtab);
}
#endif
/*
* 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;
int did_find_shown_match = FALSE;
int shown_match_ok = FALSE;
int i;
int cur = -1;
colnr_T col;
int lead_len = 0;
if (!pum_wanted() || !pum_enough_matches())
return;
#if defined(FEAT_EVAL)
// Dirty hard-coded hack: remove any matchparen highlighting.
do_cmdline_cmd((char_u *)"if exists('g:loaded_matchparen')|3match none|endif");
#endif
// Update the screen later, before drawing the popup menu over it.
pum_call_update_screen();
if (compl_match_array == NULL)
{
// Need to build the popup menu list.
compl_match_arraysize = 0;
compl = compl_first_match;
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;
compl_match_array = ALLOC_CLEAR_MULT(pumitem_T, compl_match_arraysize);
if (compl_match_array != NULL)
{
// 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;
}
}
if (compl_match_array != NULL)
{
// 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_display(compl_match_array, compl_match_arraysize, cur);
curwin->w_cursor.col = col;
#ifdef FEAT_EVAL
if (has_completechanged())
trigger_complete_changed_event(cur);
#endif
}
}
#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)
{
#ifdef FEAT_SPELL
// When 'dictionary' is empty and spell checking is enabled use
// "spell".
if (!thesaurus && curwin->w_p_spell)
dict = (char_u *)"spell";
else
#endif
return;
}
buf = alloc(LSIZE);
if (buf == NULL)
return;
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())
{
char_u *pat_esc = vim_strsave_escaped(pat, (char_u *)"\\");
size_t len;
if (pat_esc == NULL)
goto theend;
len = STRLEN(pat_esc) + 10;
ptr = alloc(len);
if (ptr == NULL)
{
vim_free(pat_esc);
goto theend;
}
vim_snprintf((char *)ptr, len, "^\\s*\\zs\\V%s", pat_esc);
regmatch.regprog = vim_regcomp(ptr, RE_MAGIC);
vim_free(pat_esc);
vim_free(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, ",");
# ifdef FEAT_SPELL
if (!thesaurus && STRCMP(buf, "spell") == 0)
count = -1;
else
# endif
if (vim_strchr(buf, '`') != NULL
|| expand_wildcards(1, &buf, &count, &files,
EW_FILE|EW_SILENT) != OK)
count = 0;
}
# ifdef FEAT_SPELL
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
# endif
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);
vim_free(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 = mch_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((char *)IObuff, TRUE, HL_ATTR(HLF_R));
}
if (fp != NULL)
{
// 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())
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;
int i;
VIM_CLEAR(compl_pattern);
VIM_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;
vim_free(match->cp_str);
// several entries may use the same fname, free it just once.
if (match->cp_flags & CP_FREE_FNAME)
vim_free(match->cp_fname);
for (i = 0; i < CPT_COUNT; ++i)
vim_free(match->cp_text[i]);
#ifdef FEAT_EVAL
clear_tv(&match->cp_user_data);
#endif
vim_free(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;
}
void
ins_compl_clear(void)
{
compl_cont_status = 0;
compl_started = FALSE;
compl_matches = 0;
VIM_CLEAR(compl_pattern);
VIM_CLEAR(compl_leader);
edit_submode_extra = NULL;
VIM_CLEAR(compl_orig_text);
compl_enter_selects = FALSE;
#ifdef FEAT_EVAL
// clear v:completed_item
set_vim_var_dict(VV_COMPLETED_ITEM, dict_alloc_lock(VAR_FIXED));
#endif
}
/*
* Return TRUE when Insert completion is active.
*/
int
ins_compl_active(void)
{
return compl_started;
}
/*
* Selected one of the matches. When FALSE the match was edited or using the
* longest common string.
*/
int
ins_compl_used_match(void)
{
return compl_used_match;
}
/*
* Initialize get longest common string.
*/
void
ins_compl_init_get_longest(void)
{
compl_get_longest = FALSE;
}
/*
* Returns TRUE when insert completion is interrupted.
*/
int
ins_compl_interrupted(void)
{
return compl_interrupted;
}
/*
* Returns TRUE if the <Enter> key selects a match in the completion popup
* menu.
*/
int
ins_compl_enter_selects(void)
{
return compl_enter_selects;
}
/*
* Return the column where the text starts that is being completed
*/
colnr_T
ins_compl_col(void)
{
return compl_col;
}
/*
* 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.
*/
int
ins_compl_bs(void)
{
char_u *line;
char_u *p;
line = ml_get_curline();
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();
vim_free(compl_leader);
compl_leader = vim_strnsave(line + compl_col, (int)(p - line) - compl_col);
if (compl_leader != NULL)
{
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;
}
return K_BS;
}
/*
* Return TRUE when we need to find matches again, ins_compl_restart() is to
* be called.
*/
static int
ins_compl_need_restart(void)
{
// 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
{
#ifdef FEAT_SPELL
spell_bad_len = 0; // need to redetect bad word
#endif
// Matches were cleared, need to search for them now. Before drawing
// the popup menu display the changed text before the cursor. Set
// "compl_restarting" to avoid that the first match is inserted.
pum_call_update_screen();
#ifdef FEAT_GUI
if (gui.in_use)
{
// Show the cursor after the match, not after the redrawn text.
setcursor();
out_flush_cursor(FALSE, FALSE);
}
#endif
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.
if (compl_match_array == NULL)
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.
*/
void
ins_compl_addleader(int c)
{
int cc;
if (stop_arrow() == FAIL)
return;
if (has_mbyte && (cc = (*mb_char2len)(c)) > 1)
{
char_u buf[MB_MAXBYTES + 1];
(*mb_char2bytes)(c, buf);
buf[cc] = NUL;
ins_char_bytes(buf, cc);
if (compl_opt_refresh_always)
AppendToRedobuff(buf);
}
else
{
ins_char(c);
if (compl_opt_refresh_always)
AppendCharToRedobuff(c);
}
// If we didn't complete finding matches we must search again.
if (ins_compl_need_restart())
ins_compl_restart();
// When 'always' is set, don't reset compl_leader. While completing,
// cursor doesn't point original position, changing compl_leader would
// break redo.
if (!compl_opt_refresh_always)
{
vim_free(compl_leader);
compl_leader = vim_strnsave(ml_get_curline() + compl_col,
(int)(curwin->w_cursor.col - compl_col));
if (compl_leader != NULL)
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)
{
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)
{
char_u *p;
// 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
{
p = vim_strsave(str);
if (p != NULL)
{
vim_free(compl_first_match->cp_str);
compl_first_match->cp_str = p;
}
}
else if (compl_first_match->cp_prev != NULL
&& (compl_first_match->cp_prev->cp_flags & CP_ORIGINAL_TEXT))
{
p = vim_strsave(str);
if (p != NULL)
{
vim_free(compl_first_match->cp_prev->cp_str);
compl_first_match->cp_prev->cp_str = p;
}
}
}
/*
* Append one character to the match leader. May reduce the number of
* matches.
*/
void
ins_compl_addfrommatch(void)
{
char_u *p;
int len = (int)curwin->w_cursor.col - (int)compl_col;
int c;
compl_T *cp;
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.
* Returns TRUE when the character is not to be inserted;
*/
int
ins_compl_prep(int c)
{
char_u *ptr;
#ifdef FEAT_CINDENT
int want_cindent;
#endif
int retval = FALSE;
int prev_mode = ctrl_x_mode;
// 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)
return retval;
#ifdef FEAT_PROP_POPUP
// Ignore mouse events in a popup window
if (is_mouse_key(c))
{
// Ignore drag and release events, the position does not need to be in
// the popup and it may have just closed.
if (c == K_LEFTRELEASE
|| c == K_LEFTRELEASE_NM
|| c == K_MIDDLERELEASE
|| c == K_RIGHTRELEASE
|| c == K_X1RELEASE
|| c == K_X2RELEASE
|| c == K_LEFTDRAG
|| c == K_MIDDLEDRAG
|| c == K_RIGHTDRAG
|| c == K_X1DRAG
|| c == K_X2DRAG)
return retval;
if (popup_visible)
{
int row = mouse_row;
int col = mouse_col;
win_T *wp = mouse_find_win(&row, &col, FIND_POPUP);
if (wp != NULL && WIN_IS_POPUP(wp))
return retval;
}
}
#endif
// 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;
#ifdef FEAT_COMPL_FUNC
case Ctrl_U:
ctrl_x_mode = CTRL_X_FUNCTION;
break;
case Ctrl_O:
ctrl_x_mode = CTRL_X_OMNI;
break;
#endif
case 's':
case Ctrl_S:
ctrl_x_mode = CTRL_X_SPELL;
#ifdef FEAT_SPELL
++emsg_off; // Avoid getting the E756 error twice.
spell_back_to_badword();
--emsg_off;
#endif
break;
case Ctrl_RSB:
ctrl_x_mode = CTRL_X_TAGS;
break;
#ifdef FEAT_FIND_ID
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;
#endif
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);
}
#ifdef FEAT_CINDENT
want_cindent = (get_can_cindent() && cindent_on());
#endif
// When completing whole lines: fix indent for 'cindent'.
// Otherwise, break line if it's too long.
if (compl_cont_mode == CTRL_X_WHOLE_LINE)
{
#ifdef FEAT_CINDENT
// re-indent the current line
if (want_cindent)
{
do_c_expr_indent();
want_cindent = FALSE; // don't do it again
}
#endif
}
else
{
int prev_col = curwin->w_cursor.col;
// put the cursor on the last char, for 'tw' formatting
if (prev_col > 0)
dec_cursor();
// only format when something was inserted
if (!arrow_used && !ins_need_undo_get() && c != Ctrl_E)
insertchar(NUL, 0, -1);
if (prev_col > 0
&& ml_get_curline()[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);
{
int new_mode = ctrl_x_mode;
// Trigger the CompleteDone event to give scripts a chance to
// act upon the completion. Do this before clearing the info,
// and restore ctrl_x_mode, so that complete_info() can be
// used.
ctrl_x_mode = prev_mode;
ins_apply_autocmds(EVENT_COMPLETEDONE);
ctrl_x_mode = new_mode;
}
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();
}
#ifdef FEAT_CMDWIN
if (c == Ctrl_C && cmdwin_type != 0)
// Avoid the popup menu remains displayed when leaving the
// command line window.
update_screen(0);
#endif
#ifdef FEAT_CINDENT
// Indent now if a key was typed that is in 'cinkeys'.
if (want_cindent && in_cinkeys(KEY_COMPLETE, ' ', inindent(0)))
do_c_expr_indent();
#endif
}
}
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 -= (*mb_head_off)(p, p + len);
for (p += len; *p != NUL; MB_PTR_ADV(p))
AppendCharToRedobuff(K_BS);
}
else
len = 0;
if (ptr != NULL)
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 = NULL;
if (flag == 'w') // just windows
{
if (buf == curbuf || wp == NULL) // first call for this flag/expansion
wp = curwin;
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;
}
#ifdef FEAT_COMPL_FUNC
/*
* 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;
typval_T args[3];
char_u *funcname;
pos_T pos;
win_T *curwin_save;
buf_T *curbuf_save;
typval_T rettv;
int save_State = State;
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.
args[0].v_type = VAR_NUMBER;
args[0].vval.v_number = 0;
args[1].v_type = VAR_STRING;
args[1].vval.v_string = base != NULL ? base : (char_u *)"";
args[2].v_type = VAR_UNKNOWN;
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;
case VAR_SPECIAL:
if (rettv.vval.v_number == VVAL_NONE)
compl_opt_suppress_empty = TRUE;
// FALLTHROUGH
default:
// TODO: Give error message?
clear_tv(&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 (!EQUAL_POS(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)
dict_unref(matchdict);
if (matchlist != NULL)
list_unref(matchlist);
}
#endif // FEAT_COMPL_FUNC
#if defined(FEAT_COMPL_FUNC) || defined(FEAT_EVAL) || defined(PROTO)
/*
* Add a match to the list of matches from a typeval_T.
* If the given string is already in the list of completions, then return
* NOTDONE, otherwise add it to the list and return OK. If there is an error,
* maybe because alloc() returns NULL, then FAIL is returned.
*/
static int
ins_compl_add_tv(typval_T *tv, int dir)
{
char_u *word;
int dup = FALSE;
int empty = FALSE;
int flags = 0;
char_u *(cptext[CPT_COUNT]);
typval_T user_data;
user_data.v_type = VAR_UNKNOWN;
if (tv->v_type == VAR_DICT && tv->vval.v_dict != NULL)
{
word = dict_get_string(tv->vval.v_dict, (char_u *)"word", FALSE);
cptext[CPT_ABBR] = dict_get_string(tv->vval.v_dict,
(char_u *)"abbr", FALSE);
cptext[CPT_MENU] = dict_get_string(tv->vval.v_dict,
(char_u *)"menu", FALSE);
cptext[CPT_KIND] = dict_get_string(tv->vval.v_dict,
(char_u *)"kind", FALSE);
cptext[CPT_INFO] = dict_get_string(tv->vval.v_dict,
(char_u *)"info", FALSE);
dict_get_tv(tv->vval.v_dict, (char_u *)"user_data", &user_data);
if (dict_get_string(tv->vval.v_dict, (char_u *)"icase", FALSE) != NULL
&& dict_get_number(tv->vval.v_dict, (char_u *)"icase"))
flags |= CP_ICASE;
if (dict_get_string(tv->vval.v_dict, (char_u *)"dup", FALSE) != NULL)
dup = dict_get_number(tv->vval.v_dict, (char_u *)"dup");
if (dict_get_string(tv->vval.v_dict, (char_u *)"empty", FALSE) != NULL)
empty = dict_get_number(tv->vval.v_dict, (char_u *)"empty");
if (dict_get_string(tv->vval.v_dict, (char_u *)"equal", FALSE) != NULL
&& dict_get_number(tv->vval.v_dict, (char_u *)"equal"))
flags |= CP_EQUAL;
}
else
{
word = tv_get_string_chk(tv);
vim_memset(cptext, 0, sizeof(cptext));
}
if (word == NULL || (!empty && *word == NUL))
return FAIL;
return ins_compl_add(word, -1, NULL, cptext, &user_data, dir, flags, dup);
}
/*
* Add completions from a list.
*/
static void
ins_compl_add_list(list_T *list)
{
listitem_T *li;
int dir = compl_direction;
// Go through the List with matches and add each of them.
for (li = list->lv_first; li != NULL; li = li->li_next)
{
if (ins_compl_add_tv(&li->li_tv, 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 = dict_find(dict, (char_u *)"refresh", 7);
if (di_refresh != NULL && di_refresh->di_tv.v_type == VAR_STRING)
{
char_u *v = di_refresh->di_tv.vval.v_string;
if (v != NULL && STRCMP(v, (char_u *)"always") == 0)
compl_opt_refresh_always = TRUE;
}
// Add completions from a "words" list.
di_words = dict_find(dict, (char_u *)"words", 5);
if (di_words != NULL && di_words->di_tv.v_type == VAR_LIST)
ins_compl_add_list(di_words->di_tv.vval.v_list);
}
/*
* Start completion for the complete() function.
* "startcol" is where the matched text starts (1 is first column).
* "list" is the list of matches.
*/
static void
set_completion(colnr_T startcol, list_T *list)
{
int save_w_wrow = curwin->w_wrow;
int save_w_leftcol = curwin->w_leftcol;
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(ml_get_curline() + compl_col, compl_length);
if (p_ic)
flags |= CP_ICASE;
if (compl_orig_text == NULL || ins_compl_add(compl_orig_text,
-1, NULL, NULL, NULL, 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;
compl_curr_match = compl_first_match;
if (compl_no_insert || compl_no_select)
{
ins_complete(K_DOWN, FALSE);
if (compl_no_select)
// Down/Up has no real effect.
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);
out_flush();
}
/*
* "complete()" function
*/
void
f_complete(typval_T *argvars, typval_T *rettv UNUSED)
{
int startcol;
if ((State & INSERT) == 0)
{
emsg(_("E785: complete() can only be used in Insert mode"));
return;
}
// Check for undo allowed here, because if something was already inserted
// the line was already saved for undo and this check isn't done.
if (!undo_allowed())
return;
if (argvars[1].v_type != VAR_LIST || argvars[1].vval.v_list == NULL)
{
emsg(_(e_invarg));
return;
}
startcol = (int)tv_get_number_chk(&argvars[0], NULL);
if (startcol <= 0)
return;
set_completion(startcol - 1, argvars[1].vval.v_list);
}
/*
* "complete_add()" function
*/
void
f_complete_add(typval_T *argvars, typval_T *rettv)
{
rettv->vval.v_number = ins_compl_add_tv(&argvars[0], 0);
}
/*
* "complete_check()" function
*/
void
f_complete_check(typval_T *argvars UNUSED, typval_T *rettv)
{
int saved = RedrawingDisabled;
RedrawingDisabled = 0;
ins_compl_check_keys(0, TRUE);
rettv->vval.v_number = ins_compl_interrupted();
RedrawingDisabled = saved;
}
/*
* 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 *)"";
}
/*
* Get complete information
*/
static void
get_complete_info(list_T *what_list, dict_T *retdict)
{
int ret = OK;
listitem_T *item;
#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 (item = what_list->lv_first; item != NULL; item = item->li_next)
{
char_u *what = tv_get_string(&item->li_tv);
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;
}
}
if (ret == OK && (what_flag & CI_WHAT_MODE))
ret = dict_add_string(retdict, "mode", ins_compl_mode());
if (ret == OK && (what_flag & CI_WHAT_PUM_VISIBLE))
ret = dict_add_number(retdict, "pum_visible", pum_visible());
if (ret == OK && (what_flag & CI_WHAT_ITEMS))
{
list_T *li;
dict_T *di;
compl_T *match;
li = list_alloc();
if (li == NULL)
return;
ret = dict_add_list(retdict, "items", li);
if (ret == OK && compl_first_match != NULL)
{
match = compl_first_match;
do
{
if (!(match->cp_flags & CP_ORIGINAL_TEXT))
{
di = dict_alloc();
if (di == NULL)
return;
ret = list_append_dict(li, di);
if (ret != OK)
return;
dict_add_string(di, "word", match->cp_str);
dict_add_string(di, "abbr", match->cp_text[CPT_ABBR]);
dict_add_string(di, "menu", match->cp_text[CPT_MENU]);
dict_add_string(di, "kind", match->cp_text[CPT_KIND]);
dict_add_string(di, "info", match->cp_text[CPT_INFO]);
if (match->cp_user_data.v_type == VAR_UNKNOWN)
// Add an empty string for backwards compatibility
dict_add_string(di, "user_data", (char_u *)"");
else
dict_add_tv(di, "user_data", &match->cp_user_data);
}
match = match->cp_next;
}
while (match != NULL && match != compl_first_match);
}
}
if (ret == OK && (what_flag & CI_WHAT_SELECTED))
ret = dict_add_number(retdict, "selected", (compl_curr_match != NULL) ?
compl_curr_match->cp_number - 1 : -1);
// TODO
// if (ret == OK && (what_flag & CI_WHAT_INSERTED))
}
/*
* "complete_info()" function
*/
void
f_complete_info(typval_T *argvars, typval_T *rettv)
{
list_T *what_list = NULL;
if (rettv_dict_alloc(rettv) != OK)
return;
if (argvars[0].v_type != VAR_UNKNOWN)
{
if (argvars[0].v_type != VAR_LIST)
{
emsg(_(e_listreq));
return;
}
what_list = argvars[0].vval.v_list;
}
get_complete_info(what_list, rettv->vval.v_dict);
}
#endif
/*
* 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;
int 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;
if (!compl_started)
{
FOR_ALL_BUFFERS(ins_buf)
ins_buf->b_scanned = 0;
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;
// 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 ((ctrl_x_mode == CTRL_X_NORMAL
|| ctrl_x_mode_line_or_eval())
&& (!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((char *)IObuff, TRUE, HL_ATTR(HLF_R));
}
else if (*e_cpt == NUL)
break;
else
{
if (ctrl_x_mode_line_or_eval())
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;
}
}
#ifdef FEAT_FIND_ID
else if (*e_cpt == 'i')
type = CTRL_X_PATH_PATTERNS;
else if (*e_cpt == 'd')
type = CTRL_X_PATH_DEFINES;
#endif
else if (*e_cpt == ']' || *e_cpt == 't')
{
type = CTRL_X_TAGS;
vim_snprintf((char *)IObuff, IOSIZE, _("Scanning tags."));
(void)msg_trunc_attr((char *)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;
#ifdef FEAT_FIND_ID
case CTRL_X_PATH_PATTERNS:
case CTRL_X_PATH_DEFINES:
find_pattern_in_path(compl_pattern, compl_direction,
(int)STRLEN(compl_pattern), FALSE, FALSE,
(type == CTRL_X_PATH_DEFINES
&& !(compl_cont_status & CONT_SOL))
? FIND_DEFINE : FIND_ANY, 1L, ACTION_EXPAND,
(linenr_T)1, (linenr_T)MAXLNUM);
break;
#endif
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
| (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);
#ifdef BACKSLASH_IN_FILENAME
if (curbuf->b_p_csl[0] != NUL)
{
int i;
for (i = 0; i < num_matches; ++i)
{
char_u *ptr = matches[i];
while (*ptr != NUL)
{
if (curbuf->b_p_csl[0] == 's' && *ptr == '\\')
*ptr = '/';
else if (curbuf->b_p_csl[0] == 'b' && *ptr == '/')
*ptr = '\\';
ptr += (*mb_ptr2len)(ptr);
}
}
}
#endif
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;
#ifdef FEAT_COMPL_FUNC
case CTRL_X_FUNCTION:
case CTRL_X_OMNI:
expand_by_function(type, compl_pattern);
break;
#endif
case CTRL_X_SPELL:
#ifdef FEAT_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);
#endif
break;
default: // normal ^P/^N and ^X^L
// If 'infercase' is set, don't use 'smartcase' here
save_p_scs = p_scs;
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
// buffer 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 (;;)
{
int cont_s_ipos = FALSE;
++msg_silent; // Don't want messages for wrapscan.
// ctrl_x_mode_line_or_eval() || word-wise search that
// has added a word that was at the beginning of the line
if (ctrl_x_mode_line_or_eval()
|| (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())
{
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] == '.'
|| (vim_strchr(p_cpo, CPO_JOINSP)
== NULL
&& (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;
STRNCPY(IObuff + len, ptr, tmp_ptr - ptr);
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 ctrl_x_mode == CTRL_X_NORMAL) or when we've found a new
// match
if ((ctrl_x_mode != CTRL_X_NORMAL
&& !ctrl_x_mode_line_or_eval()) || 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 ((ctrl_x_mode != CTRL_X_NORMAL
&& !ctrl_x_mode_line_or_eval()) || 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)
ins_buf->b_scanned = TRUE;
compl_started = FALSE;
}
}
compl_started = TRUE;
if ((ctrl_x_mode == CTRL_X_NORMAL || ctrl_x_mode_line_or_eval())
&& *e_cpt == NUL) // Got to end of 'complete'
found_new_match = FAIL;
i = -1; // total of matches, unknown
if (found_new_match == FAIL || (ctrl_x_mode != CTRL_X_NORMAL
&& !ctrl_x_mode_line_or_eval()))
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.
*/
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: is this sufficient for redrawing? Redrawing everything causes
// flicker, thus we can't do that.
changed_cline_bef_curs();
#ifdef FEAT_EVAL
// clear v:completed_item
set_vim_var_dict(VV_COMPLETED_ITEM, dict_alloc_lock(VAR_FIXED));
#endif
}
/*
* Insert the new text being completed.
* "in_compl_func" is TRUE when called from complete_check().
*/
void
ins_compl_insert(int in_compl_func)
{
ins_bytes(compl_shown_match->cp_str + ins_compl_len());
if (compl_shown_match->cp_flags & CP_ORIGINAL_TEXT)
compl_used_match = FALSE;
else
compl_used_match = TRUE;
#ifdef FEAT_EVAL
{
dict_T *dict = ins_compl_dict_alloc(compl_shown_match);
set_vim_var_dict(VV_COMPLETED_ITEM, dict);
}
#endif
if (!in_compl_func)
compl_curr_match = compl_shown_match;
}
/*
* 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;
int 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, (int)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, (int)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)
{
// may undisplay the popup menu first
ins_compl_upd_pum();
if (pum_enough_matches())
// Will display the popup menu, don't redraw yet to avoid flicker.
pum_call_update_screen();
else
// Not showing the popup menu yet, redraw to show the user what was
// inserted.
update_screen(0);
// display the updated popup menu
ins_compl_show_pum();
#ifdef FEAT_GUI
if (gui.in_use)
{
// Show the cursor after the match, not after the redrawn text.
setcursor();
out_flush_cursor(FALSE, FALSE);
}
#endif
// 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((char *)IObuff);
redraw_cmdline = FALSE; // don't overwrite!
}
}
return num_matches;
}
/*
* 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;
int c;
// 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.
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 == Ctrl_P || c == Ctrl_L
|| c == K_PAGEUP || c == K_KPAGEUP || c == K_S_UP || c == K_UP)
return BACKWARD;
return FORWARD;
}
/*
* Return TRUE for keys that are used for completion only when the popup menu
* is visible.
*/
static int
ins_compl_pum_key(int c)
{
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 (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;
}
/*
* Return TRUE if completion with "c" should insert the match, FALSE if only
* to change the currently selected completion.
*/
static int
ins_compl_use_match(int c)
{
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;
}
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 (out of mem).
*/
int
ins_complete(int c, int 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;
#ifdef FEAT_COMPL_FUNC
int save_did_ai = did_ai;
#endif
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;
#ifdef FEAT_SMARTINDENT
did_si = FALSE;
can_si = FALSE;
can_si_back = FALSE;
#endif
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())
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);
if (compl_pattern == NULL)
return FAIL;
}
else if (compl_cont_status & CONT_ADDING)
{
char_u *prefix = (char_u *)"\\<";
// we need up to 2 extra chars for the prefix
compl_pattern = alloc(quote_meta(NULL, line + compl_col,
compl_length) + 2);
if (compl_pattern == NULL)
return FAIL;
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");
if (compl_pattern == NULL)
return FAIL;
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.
if (has_mbyte)
{
int base_class;
int head_off;
startcol -= (*mb_head_off)(line, line + startcol);
base_class = mb_get_class(line + startcol);
while (--startcol >= 0)
{
head_off = (*mb_head_off)(line, line + startcol);
if (base_class != mb_get_class(line + startcol
- head_off))
break;
startcol -= head_off;
}
}
else
while (--startcol >= 0 && vim_iswordc(line[startcol]))
;
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,
// alloc(7) is enough -- Acevedo
compl_pattern = alloc(7);
if (compl_pattern == NULL)
return FAIL;
STRCPY((char *)compl_pattern, "\\<");
(void)quote_meta(compl_pattern + 2, line + compl_col, 1);
STRCAT((char *)compl_pattern, "\\k");
}
else
{
compl_pattern = alloc(quote_meta(NULL, line + compl_col,
compl_length) + 2);
if (compl_pattern == NULL)
return FAIL;
STRCPY((char *)compl_pattern, "\\<");
(void)quote_meta(compl_pattern + 2, line + compl_col,
compl_length);
}
}
}
else if (ctrl_x_mode_line_or_eval())
{
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);
if (compl_pattern == NULL)
return FAIL;
}
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);
if (compl_pattern == NULL)
return FAIL;
}
else if (ctrl_x_mode == CTRL_X_CMDLINE)
{
compl_pattern = vim_strnsave(line, curs_col);
if (compl_pattern == NULL)
return FAIL;
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)
{
#ifdef FEAT_COMPL_FUNC
// Call user defined function 'completefunc' with "a:findstart"
// set to 1 to obtain the length of text to use for completion.
typval_T args[3];
int col;
char_u *funcname;
pos_T pos;
win_T *curwin_save;
buf_T *curbuf_save;
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)
{
semsg(_(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;
}
args[0].v_type = VAR_NUMBER;
args[0].vval.v_number = 1;
args[1].v_type = VAR_STRING;
args[1].vval.v_string = (char_u *)"";
args[2].v_type = VAR_UNKNOWN;
pos = curwin->w_cursor;
curwin_save = curwin;
curbuf_save = curbuf;
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 (!EQUAL_POS(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;
compl_opt_suppress_empty = 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);
if (compl_pattern == NULL)
#endif
return FAIL;
}
else if (ctrl_x_mode == CTRL_X_SPELL)
{
#ifdef FEAT_SPELL
if (spell_bad_len > 0)
compl_col = curs_col - 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);
if (compl_pattern == NULL)
#endif
return FAIL;
}
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())
{
// 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.
vim_free(compl_orig_text);
compl_orig_text = vim_strnsave(line + compl_col, compl_length);
if (p_ic)
flags |= CP_ICASE;
if (compl_orig_text == NULL || ins_compl_add(compl_orig_text,
-1, NULL, NULL, NULL, 0, flags, FALSE) != OK)
{
VIM_CLEAR(compl_pattern);
VIM_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;
out_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);
// may undisplay the popup menu
ins_compl_upd_pum();
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.
if (!compl_opt_suppress_empty)
{
showmode();
if (!shortmess(SHM_COMPLETIONMENU))
{
if (edit_submode_extra != NULL)
{
if (!p_smd)
msg_attr((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;
}
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;
}
/*
* 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;
}
#if defined(EXITFREE) || defined(PROTO)
void
free_insexpand_stuff(void)
{
VIM_CLEAR(compl_orig_text);
}
#endif
#ifdef FEAT_SPELL
/*
* 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);
}
#endif
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