Re^4: Executing CGI/web form directives in regex substitution without pages of code

That's a great question, and until you asked it, I hadn't even caught that. (I had just copy/pasted the error straight from the log, and noticed it was focused on that regex section.)

The code did not contain a double backslash. I copied that line exactly as you had posted it, and it was and still is as follows in the code:

foreach my $line (@data) {
    push @changed, $line =~ s{$s$c$b\K$m(?=$b$c$e)}{$regexR}r;
}
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I haven't used the //r before. That is new to me. What does it do? I wondered if it might be the syntax error.

Blessings,

~Polyglot~

Comment on Re^4: Executing CGI/web form directives in regex substitution without pages of code Download Code

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Re^5: Executing CGI/web form directives in regex substitution without pages of code by jo37 (Curate) on Feb 19, 2020 at 22:52 UTC
It means: Return substitution and leave the original string untouched. Maybe it is not available in your version. But you may work around this. -jo	[reply]
Re^5: Executing CGI/web form directives in regex substitution without pages of code by AnomalousMonk (Archbishop) on Feb 20, 2020 at 03:09 UTC
The `/r` modifier for `s///` substitution was added with Perl version 5.14 (see Regexp Quote-Like Operators in perlop). What version of Perl are you using? Give a man a fish: `<%-{-{-{-<`	[reply] [d/l] [select]