From 768ec9724484730d1ae331feabf209571501528f Mon Sep 17 00:00:00 2001 From: Stefan Monnier Date: Thu, 25 May 2000 16:30:40 +0000 Subject: [PATCH] (at_begline_loc_p): Also recognize the \\(?:^ case of an anchor at the beginning of a shy-group. --- regex.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/regex.c b/regex.c index 3b4eb50259..9ea8699c33 100644 --- a/regex.c +++ b/regex.c @@ -3208,7 +3208,12 @@ at_begline_loc_p (pattern, p, syntax) /* After a subexpression? */ (*prev == '(' && (syntax & RE_NO_BK_PARENS || prev_prev_backslash)) /* After an alternative? */ - || (*prev == '|' && (syntax & RE_NO_BK_VBAR || prev_prev_backslash)); + || (*prev == '|' && (syntax & RE_NO_BK_VBAR || prev_prev_backslash)) + /* After a shy subexpression? */ + || ((syntax & RE_SHY_GROUPS) && prev - 2 >= pattern + && prev[-1] == '?' && prev[-2] == '(' + && (syntax & RE_NO_BK_PARENS + || (prev - 3 >= pattern && prev[-3] == '\\'))); } -- 2.30.2