tests: don't expect $EGREP to support -w

Does not work on Solaris 10.  Reported by Dennis Clarke.
http://lists.gnu.org/archive/html/bug-bison/2012-11/msg00009.html
* tests/headers.at (Several parsers): Use Perl instead.
While at it, run it only once, on all the generated headers.
Adjust to YY_NULL be defined in position.hh.

diff --git a/THANKS b/THANKS
index 77d35be..4e88e8f 100644 (file)
--- a/THANKS
+++ b/THANKS
@@ -31,6 +31,7 @@ Dagobert Michelsen        dam@baltic-online.de
 Daniel Hagerty            hag@gnu.org
 David J. MacKenzie        djm@gnu.org
 David Kastrup             dak@gnu.org
+Dennis Clarke             dclarke@blastwave.org
 Derek M. Jones            derek@knosof.co.uk
 Di-an Jan                 dianj@freeshell.org
 Dick Streefland           dick.streefland@altium.nl

diff --git a/tests/headers.at b/tests/headers.at
index a60e315..7df4cc9 100644 (file)
--- a/tests/headers.at
+++ b/tests/headers.at
@@ -163,21 +163,6 @@ exp:
 
 AT_BISON_CHECK([-d -o AT_SKEL_CC_IF([$1.cc $1.yy], [$1.c $1.y])])
 
-# Check there is no 'yy' left.
-# C++ output relies on namespaces and still uses yy a lot.
-AT_SKEL_CC_IF([],
-  [AT_CHECK([$EGREP yy $1.h], [1])])
-
-# Check there is not 'YY' left.
-# Ignore comments, YYPARSE_PARAM (obsolete), YYPUSH_MORE(_DEFINED)?
-# (constant definition), YY_\w+_INCLUDED (header guards).
-#
-# YYDEBUG (not renamed) can be read, but not changed.
-AT_CHECK([[sed -ne 's,/\*[^*]*\*/,,g;s,//.*,,' \
-                -e '/YY/p' ]$1.AT_SKEL_CC_IF([hh], [h])[ |
-     $EGREP -wv 'YY(PARSE_PARAM|PUSH_MORE(_DEFINED)?|_[0-9A-Z_]+_INCLUDED)|(defined|if) YYDEBUG']],
-         [1])
-
 AT_LANG_COMPILE([$1.o])
 AT_CHECK([[echo "$1" >>expout]])
 
@@ -240,6 +225,36 @@ AT_TEST([x7], [%define api.push-pull both])
 AT_TEST([x8], [%define api.pure %define api.push-pull both])
 #AT_TEST([x5], [%locations %language "c++" %glr-parser])
 
+# Check there is no 'yy' left.
+# C++ output relies on namespaces and still uses yy a lot.
+#
+# Check there is no 'YY' left.
+# Ignore comments, YYPARSE_PARAM (obsolete), YYPUSH_MORE(_DEFINED)?
+# (constant definition), YY_\w+_INCLUDED (header guards).
+#
+# YYDEBUG (not renamed) can be read, but not changed.
+AT_CHECK([[$PERL -n -0777 -e '
+  s{/\*.*?\*/}{}gs;
+  s{//.*}{}g;
+  s{\b(YYPARSE_PARAM
+      |YYPUSH_MORE(_DEFINED)?
+      |YY_\w+_INCLUDED
+      |YY_NULL
+      |(defined|if)\ YYDEBUG
+      )\b}{}gx;
+  while (/^(.*YY.*)$/gm)
+  {
+    print "$ARGV: $1\n";
+  }
+  if ($ARGV =~ /\.h$/)
+  {
+    while (/^(.*yy.*)$/gm)
+    {
+      print "$ARGV: $1\n";
+    }
+  }
+' -- *.hh *.h]])
+
 # Check that the headers are self-contained, and protected against
 # multiple inclusions.  While at it, check they are sane for C++.
 for h in *.h *.hh