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Date: Tue, 24 Nov 2009 21:12:10 +0000
From: Dave Korn <dave DOT korn DOT cygwin AT googlemail DOT com>
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To: cygwin AT cygwin DOT com
Subject: Re: Cygwin bash regexp matching doesn't treat "\b" properly
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aputerguy wrote:
> OK - I think I found the answer which is that \b is a GNU extension not
> recognized in cygwin.
> 
> So, I guess the question now is there an alternative way of recognizing word
> boundaries?

  Bash man page for '~=' refers to man regex(3) which refers to man regex(7)
which describes word boundary markers as below:

$ [[ "foo" =~ [[:\<:]]foo[[:\>:]] ]]; echo $?
0

$ [[ "foobar" =~ [[:\<:]]foo[[:\>:]] ]]; echo $?
1

$


  (Note that I had to backslash-escape the < and > there.  In other contexts
that might not be needed.)

    cheers,
      DaveK

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