Merge remote-tracking branch 'origin/maint'

[bison.git] / data / lalr1.cc

diff --git a/data/lalr1.cc b/data/lalr1.cc
index ef5e1cee4a871030d8ef7e933bad51559b247e4b..7ad30e5c3a7369f16a6229b5a7a7487deb44627d 100644 (file)
--- a/data/lalr1.cc
+++ b/data/lalr1.cc
@@ -126,8 +126,8 @@ b4_defines_if([],
 
 b4_locations_if([b4_percent_define_ifdef([[location_type]], [],
   [# Backward compatibility.
-  m4_define([b4_location_constructors])
-  m4_include(b4_pkgdatadir/[location.cc])])])
+   m4_define([b4_location_constructors])
+   m4_include(b4_pkgdatadir/[location.cc])])])
 m4_include(b4_pkgdatadir/[stack.hh])
 b4_variant_if([m4_include(b4_pkgdatadir/[variant.hh])])
 
@@ -136,12 +136,15 @@ m4_changecom()
 m4_divert_push(0)dnl
 @output(b4_spec_defines_file@)@
 b4_copyright([Skeleton interface for Bison LALR(1) parsers in C++])
-dnl FIXME: This is wrong, we want computed header guards.
 [
+/**
+ ** \file ]b4_spec_defines_file[
+ ** Define the ]b4_namespace_ref[::parser class.
+ */
+
 /* C++ LALR(1) parser skeleton written by Akim Demaille.  */
 
-#ifndef PARSER_HEADER_H
-# define PARSER_HEADER_H
+]b4_cpp_guard_open([b4_spec_defines_file])[
 
 ]b4_percent_code_get([[requires]])[
 
@@ -164,19 +167,6 @@ b4_namespace_close])[
 # define YYDEBUG ]b4_parse_trace_if([1], [0])[
 #endif
 
-/* Enabling verbose error messages.  */
-#ifdef YYERROR_VERBOSE
-# undef YYERROR_VERBOSE
-# define YYERROR_VERBOSE 1
-#else
-# define YYERROR_VERBOSE ]b4_error_verbose_if([1], [0])[
-#endif
-
-/* Enabling the token table.  */
-#ifndef YYTOKEN_TABLE
-# define YYTOKEN_TABLE ]b4_token_table[
-#endif
-
 ]b4_namespace_open[
 
   /// A Bison parser.
@@ -241,18 +231,16 @@ b4_namespace_close])[
     static const ]b4_int_type(b4_pact_ninf, b4_pact_ninf)[ yypact_ninf_;
     static const ]b4_int_type(b4_table_ninf, b4_table_ninf)[ yytable_ninf_;
 
-    /* Tables.  */
-]b4_parser_tables_declare[
-
-#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
-    /// For a symbol, its name in clear.
-    static const char* const yytname_[];
-#endif]b4_error_verbose_if([
+    // Tables.
+]b4_parser_tables_declare[]b4_error_verbose_if([
 
     /// Convert the symbol name \a n to a form suitable for a diagnostic.
     static std::string yytnamerr_ (const char *n);])[
 
-#if YYDEBUG
+]b4_token_table_if([], [[#if YYDEBUG]])[
+    /// For a symbol, its name in clear.
+    static const char* const yytname_[];
+]b4_token_table_if([[#if YYDEBUG]])[
 ]b4_integral_parser_table_declare([rline], [b4_rline],
      [YYRLINE[YYN] -- Source line where rule number YYN was defined.])[
     /// Report on the debug stream that the rule \a r is going to be reduced.
@@ -260,10 +248,10 @@ b4_namespace_close])[
     /// Print the state stack on the debug stream.
     virtual void yystack_print_ ();
 
-    /* Debugging.  */
+    // Debugging.
     int yydebug_;
     std::ostream* yycdebug_;
-#endif
+#endif // YYDEBUG
 
     /// Convert a scanner token number \a t to a symbol number.
     static inline token_number_type yytranslate_ (]b4_lex_symbol_if([token_type], [int])[ t);
@@ -358,10 +346,9 @@ b4_public_types_define])[
  /* Redirection for backward compatibility.  */
 # define YYSTYPE b4_namespace_ref::b4_parser_class_name::semantic_type
 #endif
-])
-b4_percent_code_get([[provides]])[]dnl
-
-[#endif /* ! defined PARSER_HEADER_H */]
+])[
+]b4_percent_code_get([[provides]])[
+]b4_cpp_guard_close([b4_spec_defines_file])
 @output(b4_parser_file_name@)@
 b4_copyright([Skeleton implementation for Bison LALR(1) parsers in C++])
 b4_percent_code_get([[top]])[]dnl
@@ -652,7 +639,7 @@ b4_percent_code_get[]dnl
   {
     yydebug_ = l;
   }
-#endif
+#endif // YYDEBUG
 
   inline ]b4_parser_class_name[::state_type
   ]b4_parser_class_name[::yy_lr_goto_state_ (state_type yystate, int yylhs)
@@ -848,7 +835,7 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param)));])[
       // Destroy a variant which value may have been swapped with
       // yylhs.value (for instance if the action was "std::swap($$,
       // $1)").  The value of yylhs.value (hence possibly one of these
-      // rhs symbols) depends on the default contruction for this
+      // rhs symbols) depends on the default construction for this
       // type.  In the case of pointers for instance, no
       // initialization is done, so the value is junk.  Therefore do
       // not try to report the value of symbols about to be destroyed
@@ -1097,7 +1084,7 @@ b4_error_verbose_if([state_type yystate, int yytoken],
 
 ]b4_parser_tables_define[
 
-#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE
+]b4_token_table_if([], [[#if YYDEBUG]])[
   /* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM.
      First, the terminals, then, starting at \a yyntokens_, nonterminals.  */
   const char*
@@ -1105,9 +1092,8 @@ b4_error_verbose_if([state_type yystate, int yytoken],
   {
   ]b4_tname[
   };
-#endif
 
-#if YYDEBUG
+]b4_token_table_if([[#if YYDEBUG]])[
 ]b4_integral_parser_table_define([rline], [b4_rline])[
 
   // Print the state stack on the debug stream.