2 dnl $OpenBSD: src/regress/usr.bin/m4/patterns.m4,v 1.4 2003/06/08 20:11:45 espie Exp $
3 patsubst(`quote s in string', `(s)', `\\\1')
4 patsubst(`check whether subst
6 works as expected', `^', `>>>')
7 patsubst(`# This is a line to zap
9 keep this one', `^ *#.*
11 dnl Special case: empty regexp
12 patsubst(`empty regexp',`',`a ')