DO NOT REPLY [Bug 23707] New: - RegularExpression: wrong Match end for fixed string match

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=23707

RegularExpression: wrong Match end for fixed string match

           Summary: RegularExpression: wrong Match end for fixed string
                    match
           Product: Xerces-C++
           Version: 2.3.0
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Minor
          Priority: Other
         Component: Utilities
        AssignedTo: xerces-c-dev@xml.apache.org
        ReportedBy: cohrs@inviosoftware.com


RegularExpression::matches() calls context->fMatch->setEndPos()
with the wrong value when doing a fFixedStringOnly match and not
in XMLSCHEMA_MODE (i.e. a fixed string match using a Perl-like pattern).

The problem is this line of code (line 546 of RegularExpression.cpp in
the 2.3 src distro):
                                context->fMatch->setEndPos(0, ret + strLength);

strLength is the length of the "expression" parameter passed to matches().
I believe the value really should be the length of fFixedString.  As it
currently exists, the call to setEndPos() generally sets a value that is
beyond the end of "expression".

This bug has no effect on XMLSCHEMA_MODE, which never uses this code.

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