Get index of match from tr1::regex_search

Question

How can I get the index of the match when using std::tr1::regex_search?

// sequence of string sub-matches
std::tr1::smatch result;

if (!std::tr1::regex_search(text, result, pattern))
    return false;

I can get only the string from the std::tr1::smatch result variable, but not the index of the match.

score 1 · Accepted Answer · answered Mar 18 '13 at 16:46

1

I had missed it because I searched for an index method, but it's right there as a method - std::tr1::smatch::position() will give the index of the match.

answered Mar 18 '13 at 16:46

sashoalm

75,001
122
434
781

Well, that didn't escalate at all. – Lightness Races in Orbit Mar 18 '13 at 16:48
I found the method thanks to this answer - http://stackoverflow.com/a/234277/492336. It was about Boost, but the regex class seems to be identical in tr1. So StackOverflow still helped a lot. – sashoalm Mar 18 '13 at 16:51

Get index of match from tr1::regex_search

1 Answers1