1dnl $FreeBSD$ 2dnl $OpenBSD: src/regress/usr.bin/m4/patterns.m4,v 1.4 2003/06/08 20:11:45 espie Exp $ 3patsubst(`quote s in string', `(s)', `\\\1') 4patsubst(`check whether subst 5over several lines 6works as expected', `^', `>>>') 7patsubst(`# This is a line to zap 8# and a second line 9keep this one', `^ *#.* 10') 11dnl Special case: empty regexp 12patsubst(`empty regexp',`',`a ') 13