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-rw-r--r--src/regexp.c7
-rw-r--r--src/regexp_nfa.c5
-rw-r--r--src/testdir/test_search.vim5
-rw-r--r--src/version.c2
4 files changed, 13 insertions, 6 deletions
diff --git a/src/regexp.c b/src/regexp.c
index e37c06507..5c06ada1b 100644
--- a/src/regexp.c
+++ b/src/regexp.c
@@ -7969,6 +7969,7 @@ vim_regcomp(char_u *expr_arg, int re_flags)
{
regprog_T *prog = NULL;
char_u *expr = expr_arg;
+ int save_called_emsg;
regexp_engine = p_re;
@@ -8004,6 +8005,8 @@ vim_regcomp(char_u *expr_arg, int re_flags)
/*
* First try the NFA engine, unless backtracking was requested.
*/
+ save_called_emsg = called_emsg;
+ called_emsg = FALSE;
if (regexp_engine != BACKTRACKING_ENGINE)
prog = nfa_regengine.regcomp(expr,
re_flags + (regexp_engine == AUTOMATIC_ENGINE ? RE_AUTO : 0));
@@ -8032,13 +8035,15 @@ vim_regcomp(char_u *expr_arg, int re_flags)
* If the NFA engine failed, try the backtracking engine.
* The NFA engine also fails for patterns that it can't handle well
* but are still valid patterns, thus a retry should work.
+ * But don't try if an error message was given.
*/
- if (regexp_engine == AUTOMATIC_ENGINE)
+ if (regexp_engine == AUTOMATIC_ENGINE && !called_emsg)
{
regexp_engine = BACKTRACKING_ENGINE;
prog = bt_regengine.regcomp(expr, re_flags);
}
}
+ called_emsg |= save_called_emsg;
if (prog != NULL)
{
diff --git a/src/regexp_nfa.c b/src/regexp_nfa.c
index ba75834fc..1e1063598 100644
--- a/src/regexp_nfa.c
+++ b/src/regexp_nfa.c
@@ -7252,12 +7252,7 @@ nfa_regcomp(char_u *expr, int re_flags)
* (and count its size). */
postfix = re2post();
if (postfix == NULL)
- {
- /* TODO: only give this error for debugging? */
- if (post_ptr >= post_end)
- siemsg("Internal error: estimated max number of states insufficient: %ld", post_end - post_start);
goto fail; /* Cascaded (syntax?) error */
- }
/*
* In order to build the NFA, we parse the input regexp twice:
diff --git a/src/testdir/test_search.vim b/src/testdir/test_search.vim
index 4ff2aca5a..5cf70d4d8 100644
--- a/src/testdir/test_search.vim
+++ b/src/testdir/test_search.vim
@@ -1220,3 +1220,8 @@ func Test_large_hex_chars()
call assert_match('E678:', v:exception)
endtry
endfunc
+
+func Test_one_error_msg()
+ " This was also giving an internal error
+ call assert_fails('call search(" \\((\\v[[=P=]]){185}+ ")', 'E871:')
+endfunc
diff --git a/src/version.c b/src/version.c
index bd49a512c..cca92c8ee 100644
--- a/src/version.c
+++ b/src/version.c
@@ -780,6 +780,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
+ 973,
+/**/
972,
/**/
971,