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Re: Regex: A case where the longest match isn't being found
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From: |
Grisha Levit |
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Subject: |
Re: Regex: A case where the longest match isn't being found |
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Date: |
Fri, 27 Oct 2023 00:25:01 -0400 |
On Thu, Oct 26, 2023, 20:30 Dale R. Worley <worley@alum.mit.edu> wrote:
> I suspect the difference between the versions is how the regexp is
> unquoted while it is being read, with version 3 interpreting [^\'] as
> "character class excluding newline, backslash, and quote" and version 5
> interpreting it as "character class excluding newline and quote".
>
That seems right, just note that Bash is matching without the REG_NEWLINE
flag -- [[ $'\n' =~ [^x] ]] is true.
>