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Re: Word boundary anchors \< and \> not parsed correctly on the right si
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From: |
Paulo Marcel Coelho Aragão |
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Subject: |
Re: Word boundary anchors \< and \> not parsed correctly on the right side of =~ |
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Date: |
Tue, 10 Jul 2018 12:07:13 -0300 |
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User-agent: |
NeoMutt/20171215 |
On Tue, Jul 10, 2018 at 10:50:05AM -0400, Chet Ramey wrote:
>> […] However, this indicates to me that bash recognizes \< \> as word
>> anchors:
> No, it doesn't. It indicates that the system's POSIX regular expression
> implementation has extensions.
>> 3. bash evaluates them correctly when used with parameter expansion
> No. It passes them to the system's POSIX regexp library function, which
> understands them as an extension.
A subtle point, which makes sense. It really brings home what the reference
manual means by "as in regex3". Thanks for shedding light on this !
Re: Word boundary anchors \< and \> not parsed correctly on the right side of =~, Chet Ramey, 2018/07/10