[Boost-bugs] [Boost C++ Libraries] #12130: utf8 and utf16 implementations of do_regex_match() do not favour captures

Subject: [Boost-bugs] [Boost C++ Libraries] #12130: utf8 and utf16 implementations of do_regex_match() do not favour captures
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2016-04-15 20:40:43

#12130: utf8 and utf16 implementations of do_regex_match() do not favour captures
------------------------------------+-------------------------
 Reporter:  Dmitri Silaev <info@…>  |      Owner:  johnmaddock
     Type:  Bugs                    |     Status:  new
Milestone:  To Be Determined        |  Component:  regex
  Version:  Boost 1.60.0            |   Severity:  Problem
 Keywords:  ICU, captures           |
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 In "icu.hpp", the utf8 and utf16 implementations of do_regex_match() use
 the copy_results() function which barely assigns "first" and "second"
 members for each "sub_match". But when BOOST_REGEX_MATCH_EXTRA is defined,
 sub_match'es contain alos "m_captures" whose content does not get copied
 inside copy_results(). This leads to empty captures() for all
 sub_match'es.

 the utf32 version uses "match_results" directly, so the problem does not
 take place.

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Ticket URL: <https://svn.boost.org/trac/boost/ticket/12130>
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