From: Paul Eggert <eggert@cs.ucla.edu>
Date: Wed, 3 Nov 2004 17:39:00 +0000 (+0000)
Subject: (_W, W_): New macros.
X-Git-Tag: COREUTILS-5_3_0~479
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=51bdc5fb8b7aa4e402259aad2bdb0eceb527a391;p=platform%2Fupstream%2Fcoreutils.git

(_W, W_): New macros.
(check-texinfo): Use them instead of assuming grep -w (which is not portable).
Problem reported by Albert Chin.
---

diff --git a/doc/Makefile.am b/doc/Makefile.am
index f138ad9..38fbbdd 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -24,16 +24,20 @@ MAINTAINERCLEANFILES = constants.texi
 $(DVIS): $(EXTRA_DIST)
 $(INFO_DEPS): $(EXTRA_DIST)
 
+# Extended regular expressions to match word starts and ends.
+_W = (^|[^A-Za-z0-9_])
+W_ = ([^A-Za-z0-9_]|$$)
+
 # List words/regexps here that should not appear in the texinfo documentation.
 # E.g., use @sc{nul}, not `NUL'
 # and use `time zone', not `timezone'.
 check-texinfo:
 	fail=0; \
 	grep timezone $(srcdir)/*.texi && fail=1; \
-	grep -w IO $(srcdir)/*.texi && fail=1; \
+	$(EGREP) '$(_W)IO$(W_)' $(srcdir)/*.texi && fail=1; \
 	grep non-zero $(srcdir)/*.texi && fail=1; \
 	grep '@url{' $(srcdir)/*.texi && fail=1; \
-	grep -w NUL $(srcdir)/*.texi && fail=1; \
+	$(EGREP) '$(_W)NUL$(W_)' $(srcdir)/*.texi && fail=1; \
 	grep '\$$@"' $(srcdir)/*.texi && fail=1; \
 	grep -n '[^[:punct:]]@footnote' $(srcdir)/*.texi && fail=1; \
 	grep -n filename $(srcdir)/*.texi|grep -vE 'setfilename|{filename}' \