diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/regex.hh | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/regex.hh b/src/regex.hh index 3d067b0b..eecb947d 100644 --- a/src/regex.hh +++ b/src/regex.hh @@ -180,7 +180,8 @@ bool regex_search(It begin, It end, const Regex& re, { try { - bool matched = boost::regex_search<RegexUtf8It<It>>({begin, begin, end}, {end, begin, end}, re, flags); + auto first = (flags & RegexConstant::match_prev_avail) ? begin-1 : begin; + bool matched = boost::regex_search<RegexUtf8It<It>>({begin, first, end}, {end, first, end}, re, flags); if (re.impl() and matched != regex_search(begin, end, *re.impl(), convert_flags(flags))) regex_mismatch(re); return matched; @@ -197,7 +198,8 @@ bool regex_search(It begin, It end, MatchResults<It>& res, const Regex& re, { try { - bool matched = boost::regex_search<RegexUtf8It<It>>({begin, begin, end}, {end, begin, end}, res, re, flags); + auto first = (flags & RegexConstant::match_prev_avail) ? begin-1 : begin; + bool matched = boost::regex_search<RegexUtf8It<It>>({begin, first, end}, {end, first, end}, res, re, flags); Vector<It> captures; if (re.impl() and matched != regex_search(begin, end, captures, *re.impl(), convert_flags(flags))) regex_mismatch(re); |