tests: highlight empty right-hand sides

[bison.git] / tests / headers.at

diff --git a/tests/headers.at b/tests/headers.at
index 96a755831b1c84f65939a33cdd1fc72f84b5e379..11b8c917035c14549da451c507c3dc31e1b4e0c0 100644 (file)
--- a/tests/headers.at
+++ b/tests/headers.at
@@ -1,6 +1,6 @@
 # Bison Parser Headers.                               -*- Autotest -*-
 
-# Copyright (C) 2001-2002, 2006-2007, 2009-2012 Free Software
+# Copyright (C) 2001-2002, 2006-2007, 2009-2013 Free Software
 # Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
@@ -41,7 +41,7 @@ AT_DATA_GRAMMAR([$1.y],
 ]AT_YYLEX_DECLARE_EXTERN[
 %}
 %%
-dummy:;
+dummy: /* empty */;
 %%
 #include <$1.h>
 ])
@@ -68,30 +68,21 @@ AT_TEST_CPP_GUARD_H([9foo],        [%glr-parser])
 
 AT_SETUP([export YYLTYPE])
 
+AT_BISON_OPTION_PUSHDEFS([%name-prefix "my_"])
 AT_DATA_GRAMMAR([input.y],
-[%locations
+[[%locations
 
 %name-prefix "my_"
 %{
 #include <stdio.h>
 #include <stdlib.h>
 
-static int
-my_lex (void)
-{
-  return EOF;
-}
-
-static void
-my_error (const char *msg)
-{
-  fprintf (stderr, "%s\n", msg);
-}
-
+]AT_YYERROR_DEFINE[
+]AT_YYLEX_DEFINE[
 %}
 %%
-exp:;
-])
+exp: /* empty */;
+]])
 
 AT_BISON_CHECK([--defines -o input.c input.y])
 
@@ -102,11 +93,7 @@ YYLTYPE *my_llocp = &my_lloc;
 
 int my_parse (void);
 
-int
-main (void)
-{
-  return my_parse ();
-}
+]AT_MAIN_DEFINE[
 ]])
 
 # Link and execute, just to make sure everything is fine (and in
@@ -115,7 +102,7 @@ AT_COMPILE([caller.o])
 AT_COMPILE([input.o])
 AT_COMPILE([caller], [caller.o input.o])
 AT_PARSER_CHECK([./caller])
-
+AT_BISON_OPTION_POPDEFS
 AT_CLEANUP
 
 ## ----------------- ##
@@ -163,21 +150,6 @@ exp:
 
 AT_BISON_CHECK([-d -o $1.AT_SKEL_CC_IF([cc], [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]])
 
@@ -240,8 +212,34 @@ 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])
 
-AT_COMPILE_CXX([parser], [[x[1-8].o -DCC_IS_CXX=$CC_IS_CXX main.cc]])
-AT_CHECK([./parser], [0], [[expout]])
+# Check there is no 'yy' left.
+# C++ output relies on namespaces and still uses yy a lot.
+#
+# Check there is no 'YY' left.
+# Ignore comments, YYChar (template parameter), YYPUSH_MORE(_DEFINED)?
+# (constant definition), YY_\w+_INCLUDED (header guards).
+# YYDEBUG (not renamed) can be read, but not changed.
+AT_CHECK([[$PERL -n -0777 -e '
+  s{/\*.*?\*/}{}gs;
+  s{//.*}{}g;
+  s{\b(YYChar
+      |YYPUSH_MORE(_DEFINED)?
+      |YY_\w+_INCLUDED
+      |YY_NULL
+      |(defined|if)\ YYDEBUG
+      )\b}{}gx;
+  while (/^(.*YY.*)$/gm)
+  {
+    print "$ARGV: invalid exported YY: $1\n";
+  }
+  if ($ARGV =~ /\.h$/)
+  {
+    while (/^(.*yy.*)$/gm)
+    {
+      print "$ARGV: invalid exported yy: $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++.
@@ -256,6 +254,12 @@ EOF
   AT_COMPILE_CXX([$h.o])
 done
 
+# Do this late, so that other checks have been performed.
+AT_SKIP_IF_CANNOT_LINK_C_AND_CXX
+
+AT_COMPILE_CXX([parser], [[x[1-8].o -DCC_IS_CXX=$CC_IS_CXX main.cc]])
+AT_PARSER_CHECK([./parser], [0], [[expout]])
+
 m4_popdef([AT_TEST])
 
 AT_CLEANUP