From: Akim Demaille <demaille@gostai.com>
Date: Thu, 21 Aug 2008 20:04:27 +0000 (+0200)
Subject: Prefer M4 to CPP.
X-Git-Tag: v2.7.90~1070
X-Git-Url: https://git.saurik.com/bison.git/commitdiff_plain/422c18f48d3d545c538c61dbb7471cfa7b9e920c

Prefer M4 to CPP.

	* data/lalr1.cc: Use b4_error_verbose_if instead of #if
	YYERROR_VERBOSE.
---

diff --git a/ChangeLog b/ChangeLog
index fad6f317..242957ed 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2008-11-11  Akim Demaille  <demaille@gostai.com>
+
+	Prefer M4 to CPP.
+	* data/lalr1.cc: Use b4_error_verbose_if instead of #if
+	YYERROR_VERBOSE.
+
 2008-11-11  Akim Demaille  <demaille@gostai.com>
 
 	Support i18n of the parse error messages.
diff --git a/data/lalr1.cc b/data/lalr1.cc
index bacdf37c..e6e11c35 100644
--- a/data/lalr1.cc
+++ b/data/lalr1.cc
@@ -583,12 +583,10 @@ m4_ifdef([b4_stype],
 #if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
     /// For a symbol, its name in clear.
     static const char* const yytname_[];
-#endif
+#endif]b4_error_verbose_if([
 
-#if YYERROR_VERBOSE
     /// Convert the symbol name \a n to a form suitable for a diagnostic.
-    virtual std::string yytnamerr_ (const char *n);
-#endif
+    static std::string yytnamerr_ (const char *n);])[
 
 #if YYDEBUG
     /// For each rule, its source line number.
@@ -829,8 +827,7 @@ b4_percent_code_get[]dnl
 #define YYERROR         goto yyerrorlab
 #define YYRECOVERING()  (!!yyerrstatus_)
 
-]b4_namespace_open[
-#if YYERROR_VERBOSE
+]b4_namespace_open[]b4_error_verbose_if([[
 
   /* Return YYSTR after stripping away unnecessary quotes and
      backslashes, so that it's suitable for yyerror.  The heuristic is
@@ -868,8 +865,7 @@ b4_percent_code_get[]dnl
 
     return yystr;
   }
-
-#endif
+]])[
 
   /// Build a parser object.
   ]b4_parser_class_name::b4_parser_class_name[ (]b4_parse_param_decl[)]m4_ifset([b4_parse_param], [
@@ -1384,12 +1380,11 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param)));])[
 
   // Generate an error message.
   std::string
-  ]b4_parser_class_name[::yysyntax_error_ (int yystate, int]dnl
-b4_error_verbose_if([ yytoken])[)
+  ]b4_parser_class_name[::yysyntax_error_ (]dnl
+b4_error_verbose_if([int yystate, int yytoken],
+                    [int, int])[)
   {
-    std::string yyres;
-    YYUSE (yystate);
-#if YYERROR_VERBOSE
+    std::string yyres;]b4_error_verbose_if([[
     int yyn = yypact_[yystate];
     if (yypact_ninf_ < yyn && yyn <= yylast_)
       {
@@ -1446,8 +1441,8 @@ b4_error_verbose_if([ yytoken])[)
             yyres += *yyp;
       }
     else
-#endif
-      yyres = YY_("syntax error");
+  ]])dnl
+[    yyres = YY_("syntax error");
     return yyres;
   }