Re: Capture Groups

I have always been under the impression (or perhaps illusion) that \1 should be used within the regular expression and $1 outside of it.

That is correct. But you used \1 in the replacement part of a substitution, which is certainly outside the regex.

Greetings,
-jo

$gryYup$d0ylprbpriprrYpkJl2xyl~rzg??P~5lp2hyl0p$

Comment on Re: Capture Groups Download Code

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Re^2: Capture Groups by Bod (Parson) on Nov 14, 2023 at 23:35 UTC
But you used `\1` in the replacement part of a substitution Oh! So it's a conceptual problem...I was thinking of the whole of the substitution as being part of the regex...	[reply] [d/l]
Re^3: Capture Groups by ikegami (Patriarch) on Nov 15, 2023 at 03:51 UTC
It's part of the substitution operator, but the regular expression pattern passed to that operator is `(Mr(s)?) a`.	[reply] [d/l]