1234852Sbaptdnl $FreeBSD: releng/11.0/usr.bin/m4/tests/patterns.m4 234852 2012-04-30 22:00:34Z bapt $
2234852Sbaptdnl $OpenBSD: src/regress/usr.bin/m4/patterns.m4,v 1.4 2003/06/08 20:11:45 espie Exp $
3234852Sbaptpatsubst(`quote s in string', `(s)', `\\\1')
4234852Sbaptpatsubst(`check whether subst
5234852Sbaptover several lines
6234852Sbaptworks as expected', `^', `>>>')
7234852Sbaptpatsubst(`# This is a line to zap
8234852Sbapt# and a second line
9234852Sbaptkeep this one', `^ *#.*
10234852Sbapt')
11234852Sbaptdnl Special case: empty regexp
12234852Sbaptpatsubst(`empty regexp',`',`a ')
13