regular expressions

[Thomas Beckmann]

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