On 2021-10-01 at 13:16:12 UTC-0400 (Fri, 1 Oct 2021 14:16:12 -0300) SysAdmin EM <[email protected]> is rumored to have said:
> I am going to ask an additional question, is the syntax of pcre similar to > regexp? because I will have to modify many rules. PCRE is an acronym for "Perl Compatible Regular Expressions" which is ALMOST an accurate name for a RE library that can be used instead of the standard POSIX. Its syntax is almost identical to the (POSIX-defined) regexp. You probably do not need to modify any of your existing rules, unless you use named classes and backreferences or depend on quirks of the POSIX regexp specification. If your system has a full pcre installation, it should include man pages for pcrecompat, pcresyntax, and pcrepattern(3) which detail the PCRE syntax and its variances from true Perl RE. The POSIX syntax used in Postfix regexp tables is detailed in re_format(7) -- Bill Cole [email protected] or [email protected] (AKA @grumpybozo and many *@billmail.scconsult.com addresses) Not Currently Available For Hire
