[Boost-commit] svn:boost r65145 - trunk/boost/regex/v4

Subject: [Boost-commit] svn:boost r65145 - trunk/boost/regex/v4
From: john_at_[hidden]
Date: 2010-08-31 07:25:58

Author: johnmaddock
Date: 2010-08-31 07:25:56 EDT (Tue, 31 Aug 2010)
New Revision: 65145
URL: http://svn.boost.org/trac/boost/changeset/65145

Log:
In Perl mode then "something+++" should be an error.
Add the necessary error handling.
Fixes #4608.
Text files modified: 
   trunk/boost/regex/v4/basic_regex_parser.hpp |    15 +++++++++++++++                         
   1 files changed, 15 insertions(+), 0 deletions(-)

Modified: trunk/boost/regex/v4/basic_regex_parser.hpp
==============================================================================
--- trunk/boost/regex/v4/basic_regex_parser.hpp	(original)
+++ trunk/boost/regex/v4/basic_regex_parser.hpp	2010-08-31 07:25:56 EDT (Tue, 31 Aug 2010)
@@ -1003,6 +1003,21 @@
    //
    if(pocessive)
    {
+      if(m_position != m_end)
+      {
+         //
+         // Check for illegal following quantifier, we have to do this here, because
+         // the extra states we insert below circumvents are usual error checking :-(
+         //
+         switch(this->m_traits.syntax_type(*m_position))
+         {
+         case regex_constants::syntax_star:
+         case regex_constants::syntax_plus:
+         case regex_constants::syntax_question:
+            fail(regex_constants::error_badrepeat, m_position - m_base);
+            return false;
+         }
+      }
       re_brace* pb = static_cast<re_brace*>(this->insert_state(insert_point, syntax_element_startmark, sizeof(re_brace)));
       pb->index = -3;
       pb->icase = this->flags() & regbase::icase;