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http://bugs.exim.org/show_bug.cgi?id=1583 Summary: Substitution inserting extra character Product: PCRE Version: 10.00 (PCRE2) Platform: Other OS/Version: Linux Status: NEW Severity: bug Priority: medium Component: Code AssignedTo: [email protected] ReportedBy: [email protected] CC: [email protected] If a replacement string ends in a capturing group number without parentheses, the last character is literally included at the end of the replacement string. I have found this to occur with any number of capture groups, including 0 and 10+. It also seems to occur using any character width (8/16/32). If global substitution is enabled, it will do it for each occurrence of the pattern. The example below is ripped from pcre2test, however I can confirm that the bug exists as part of the actual pcre2_substitute() function, as this is how I originally discovered it. E.g. re> /./replace=$0 data> a 1: a0 re> /(.)(.)/replace=$2+$1 data> abc 1: b+a1c re> /(.)(.)/g,replace=$2$1 data> abcdefgh 4: ba1dc1fe1hg1 -- Configure bugmail: http://bugs.exim.org/userprefs.cgi?tab=email -- ## List details at https://lists.exim.org/mailman/listinfo/pcre-dev
