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patch 8.0.1834: GUI: find/replace dialog does not handle some chars

Problem:    GUI: find/replace dialog does not handle some chars properly.
Solution:   Escape '?' when needed.  Always escape backslash. (closes #2418,
            closes #2435)
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brammool committed May 13, 2018
1 parent 889fe2c commit 518bc174ed34dc79303488914aaaa3c238a85080
Showing with 21 additions and 33 deletions.
  1. +19 −33 src/gui.c
  2. +2 −0 src/version.c
@@ -5173,8 +5173,6 @@ gui_update_screen(void)
#endif
#if defined(FIND_REPLACE_DIALOG) || defined(PROTO)
static void concat_esc(garray_T *gap, char_u *text, int what);
/*
* Get the text to use in a find/replace dialog. Uses the last search pattern
* if the argument is empty.
@@ -5238,31 +5236,6 @@ get_find_dialog_text(
return text;
}
/*
* Concatenate "text" to grow array "gap", escaping "what" with a backslash.
*/
static void
concat_esc(garray_T *gap, char_u *text, int what)
{
while (*text != NUL)
{
#ifdef FEAT_MBYTE
int l = (*mb_ptr2len)(text);
if (l > 1)
{
while (--l >= 0)
ga_append(gap, *text++);
continue;
}
#endif
if (*text == what)
ga_append(gap, '\\');
ga_append(gap, *text);
++text;
}
}
/*
* Handle the press of a button in the find-replace dialog.
* Return TRUE when something was added to the input buffer.
@@ -5305,10 +5278,11 @@ gui_do_findrepl(
ga_concat(&ga, (char_u *)"\\c");
if (flags & FRD_WHOLE_WORD)
ga_concat(&ga, (char_u *)"\\<");
if (type == FRD_REPLACEALL || down)
concat_esc(&ga, find_text, '/'); /* escape slashes */
else
concat_esc(&ga, find_text, '?'); /* escape '?' */
/* escape / and \ */
p = vim_strsave_escaped(find_text, (char_u *)"/\\");
if (p != NULL)
ga_concat(&ga, p);
vim_free(p);
if (flags & FRD_WHOLE_WORD)
ga_concat(&ga, (char_u *)"\\>");
@@ -5371,8 +5345,20 @@ gui_do_findrepl(
if (type == FRD_REPLACE)
searchflags += SEARCH_START;
i = msg_scroll;
(void)do_search(NULL, down ? '/' : '?', ga.ga_data, 1L,
searchflags, NULL, NULL);
if (down)
{
(void)do_search(NULL, '/', ga.ga_data, 1L, searchflags, NULL, NULL);
}
else
{
/* We need to escape '?' if and only if we are searching in the up
* direction */
p = vim_strsave_escaped(ga.ga_data, (char_u *)"?");
if (p != NULL)
(void)do_search(NULL, '?', p, 1L, searchflags, NULL, NULL);
vim_free(p);
}
msg_scroll = i; /* don't let an error message set msg_scroll */
}
@@ -761,6 +761,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
1834,
/**/
1833,
/**/

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