https://bugs.exim.org/show_bug.cgi?id=2792
Bug ID: 2792
Summary: \K should not be allowed in lookarounds
Product: PCRE
Version: 10.36 (PCRE2)
Hardware: x86
OS: Linux
Status: NEW
Severity: bug
Priority: medium
Component: Code
Assignee: philip.ha...@gmail.com
Reporter: firas....@gmail.com
CC: pcre-dev@exim.org
Perl disallows the use of \K in lookarounds, while PCRE allows it. We should
mimic that behavior and throw an error.
See this example:
perl -e "/(?<=.\K)/ =~ "test""
\K not permitted in lookahead/lookbehind in regex; marked by <-- HERE in
m/(?<=.\K <-- HERE )/ at -e line 1.
perl --version
This is perl 5, version 34, subversion 0 (v5.34.0) built for
x86_64-linux-thread-multi
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