M4 doesn't expand C-escape sequences such as \t. This works:
regexp(`a b', `a[ ]b', `\&')
HTH,
Gary.
On Tue, 2002-05-14 at 00:13, Thomas Beckmann wrote:
> Hello,
>
> I�m using m4 1.4 on Windows 98 and I have a problem with regular
> expressions in patsubst or regexp.
>
> My example
>
> regexp(`a b', `a[ \t\n]+b', `\&')
>
> works as expectet ("a b") when there is only a space between a and b but
> fails (no output) when I use tab or newline.
>
> I hope that my problem isn`t only a misunderstanding, but I can`t see why
> it should be.
>
>
> Thank you in advance
>
> Thomas Beckmann
--
())_. Gary V. Vaughan gary@(oranda.demon.co.uk|gnu.org)
( '/ Research Scientist http://www.oranda.demon.co.uk
,_())____
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