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patch 8.0.0643: when a pattern search is slow Vim becomes unusable

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Problem:    When 'hlsearch' is set and matching with the last search pattern
            is very slow, Vim becomes unusable.  Cannot quit search by
            pressing CTRL-C.
Solution:   When the search times out set a flag and don't try again.  Check
            for timeout and CTRL-C in NFA loop that adds states.
This commit is contained in:
Bram Moolenaar
2017-06-17 18:44:21 +02:00
parent 8cf91286ca
commit fbd0b0af68
19 changed files with 124 additions and 68 deletions
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10
src/ex_cmds.c
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@@ -5096,7 +5096,7 @@ do_sub(exarg_T *eap)
); ++lnum)
{
nmatch = vim_regexec_multi(&regmatch, curwin, curbuf, lnum,
(colnr_T)0, NULL);
(colnr_T)0, NULL, NULL);
if (nmatch)
{
colnr_T copycol;
@@ -5695,7 +5695,7 @@ skip:
|| nmatch_tl > 0
|| (nmatch = vim_regexec_multi(&regmatch, curwin,
curbuf, sub_firstlnum,
matchcol, NULL)) == 0
matchcol, NULL, NULL)) == 0
|| regmatch.startpos[0].lnum > 0)
{
if (new_start != NULL)
@@ -5760,7 +5760,7 @@ skip:
}
if (nmatch == -1 && !lastone)
nmatch = vim_regexec_multi(&regmatch, curwin, curbuf,
sub_firstlnum, matchcol, NULL);
sub_firstlnum, matchcol, NULL, NULL);
/*
* 5. break if there isn't another match in this line
@@ -6012,7 +6012,7 @@ ex_global(exarg_T *eap)
{
lnum = curwin->w_cursor.lnum;
match = vim_regexec_multi(&regmatch, curwin, curbuf, lnum,
(colnr_T)0, NULL);
(colnr_T)0, NULL, NULL);
if ((type == 'g' && match) || (type == 'v' && !match))
global_exe_one(cmd, lnum);
}
@@ -6025,7 +6025,7 @@ ex_global(exarg_T *eap)
{
/* a match on this line? */
match = vim_regexec_multi(&regmatch, curwin, curbuf, lnum,
(colnr_T)0, NULL);
(colnr_T)0, NULL, NULL);
if ((type == 'g' && match) || (type == 'v' && !match))
{
ml_setmarked(lnum);