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http://bugs.exim.org/show_bug.cgi?id=1288 Summary: Performance issue using C++ interface with UTF-8 enabled Product: PCRE Version: N/A Platform: All OS/Version: All Status: NEW Severity: bug Priority: high Component: Code AssignedTo: [email protected] ReportedBy: [email protected] CC: [email protected] In RE::TryMatch method at pcrecpp.cc line 524 (in version 8.31) exec options defaults to 0 and later only PCRE_ANCHORED and PCRE_NOTEMPTY can be added. This way there is no way to set PCRE_NO_UTF8_CHECK flag in exec options which can cause serious performance issues processing large files. My suggested patch is changing line int options = 0; to int options = (options_.all_options() & PCRE_NO_UTF8_CHECK); This way no interface modification is required and UTF-8 checking automatically skipped if user has set the PCRE_NO_UTF8_CHECK in RE class. Not setting this in RE will cause minimal performance loss during regexp parsing and keeps exec safe. -- Configure bugmail: http://bugs.exim.org/userprefs.cgi?tab=email -- ## List details at https://lists.exim.org/mailman/listinfo/pcre-dev
