X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/28427f57ceb6f70c3a84696a9275c60ed72d1f52..710c4a65711d48674ce330ac140d00f6338fa863:/data/lalr1.cc

diff --git a/data/lalr1.cc b/data/lalr1.cc
index 3d6bdca9..b3e46e95 100644
--- a/data/lalr1.cc
+++ b/data/lalr1.cc
@@ -120,10 +120,6 @@ m4_pushdef([b4_copyright_years],
 m4_define([b4_parser_class_name],
           [b4_percent_define_get([[parser_class_name]])])
 
-# The header is mandatory.
-b4_defines_if([],
-              [b4_fatal([b4_skeleton[: using %%defines is mandatory]])])
-
 b4_locations_if([b4_percent_define_ifdef([[location_type]], [],
   [# Backward compatibility.
    m4_define([b4_location_constructors])
@@ -138,21 +134,26 @@ b4_variant_if([m4_include(b4_pkgdatadir/[variant.hh])])
 m4_define([b4_shared_declarations],
 [b4_percent_code_get([[requires]])[
 ]b4_parse_assert_if([# include <cassert>])[
-# include <stdexcept>
-# include <string>
+# include <deque>
 # include <iostream>
+# include <stdexcept>
+# include <string>]b4_defines_if([[
 # include "stack.hh"
 ]b4_locations_if([b4_percent_define_ifdef([[location_type]], [],
-                                          [[# include "location.hh"]])])[
-
-]b4_variant_if([b4_namespace_open
-b4_variant_define
-b4_namespace_close])[
+                                          [[# include "location.hh"]])])])[
 
 ]b4_YYDEBUG_define[
 
 ]b4_namespace_open[
 
+]b4_defines_if([],
+[b4_stack_define
+b4_locations_if([b4_percent_define_ifdef([[location_type]], [],
+                                         [b4_position_define
+b4_location_define])])])[
+
+]b4_variant_if([b4_variant_define])[
+
   /// A Bison parser.
   class ]b4_parser_class_name[
   {
@@ -268,7 +269,7 @@ b4_namespace_close])[
       inline stack_symbol_type ();
 
       /// Constructor.
-      inline stack_symbol_type (]b4_args([state_type s],
+      inline stack_symbol_type (]b4_join([state_type s],
                                          [const semantic_type& v],
                                          b4_locations_if([const location_type& l]))[);
 
@@ -336,7 +337,8 @@ b4_public_types_define])[
 
 # We do want M4 expansion after # for CPP macros.
 m4_changecom()
-m4_divert_push(0)dnl
+b4_defines_if(
+[m4_divert_push(0)dnl
 @output(b4_spec_defines_file@)@
 b4_copyright([Skeleton interface for Bison LALR(1) parsers in C++])
 [
@@ -350,6 +352,11 @@ b4_copyright([Skeleton interface for Bison LALR(1) parsers in C++])
 ]b4_cpp_guard_open([b4_spec_defines_file])[
 ]b4_shared_declarations[
 ]b4_cpp_guard_close([b4_spec_defines_file])
+m4_divert_pop(0)dnl
+])
+
+
+m4_divert_push(0)dnl
 @output(b4_parser_file_name@)@
 b4_copyright([Skeleton implementation for Bison LALR(1) parsers in C++])
 b4_percent_code_get([[top]])[]dnl
@@ -363,7 +370,8 @@ m4_if(b4_prefix, [yy], [],
 
 ]b4_null_define[
 
-#include "@basename(]b4_spec_defines_file[@)"
+]b4_defines_if([[#include "@basename(]b4_spec_defines_file[@)"]],
+               [b4_shared_declarations])[
 
 /* User implementation prologue.  */
 ]b4_user_post_prologue[
@@ -501,7 +509,7 @@ m4_if(b4_prefix, [yy], [],
   {
   }
 
-  ]b4_parser_class_name[::stack_symbol_type::stack_symbol_type (]b4_args(
+  ]b4_parser_class_name[::stack_symbol_type::stack_symbol_type (]b4_join(
                  [state_type s],
                  [const semantic_type& v],
                  b4_locations_if([const location_type& l]))[)
@@ -567,13 +575,13 @@ m4_if(b4_prefix, [yy], [],
     if (m)
       YY_SYMBOL_PRINT (m, sym);
 ]b4_variant_if(
-[[    yystack_.push (stack_symbol_type (]b4_args(
+[[    yystack_.push (stack_symbol_type (]b4_join(
                     [s],
                     [semantic_type()],
                     b4_locations_if([sym.location]))[));
     ]b4_symbol_variant([[yystos_[s]]], [[yystack_[0].value]],
                        [build], [sym.value])],
-[[    yystack_.push (stack_symbol_type (]b4_args(
+[[    yystack_.push (stack_symbol_type (]b4_join(
                       [s],
                       [sym.value],
                       b4_locations_if([sym.location]))[));]])[
@@ -585,7 +593,7 @@ m4_if(b4_prefix, [yy], [],
     if (m)
       YY_SYMBOL_PRINT (m, s);
 ]b4_variant_if(
-[[    yystack_.push (stack_symbol_type (]b4_args(
+[[    yystack_.push (stack_symbol_type (]b4_join(
                        [s.state],
                        [semantic_type()],
                        b4_locations_if([s.location]))[));
@@ -844,7 +852,7 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param)));])[
     if (!yyerrstatus_)
       {
         ++yynerrs_;
-        error (]b4_args(b4_locations_if([yyla.location]),
+        error (]b4_join(b4_locations_if([yyla.location]),
                         [[yysyntax_error_ (yystack_[0].state,
                                            yyempty ? yyempty_ : yyla.type)]])[);
       }
@@ -959,7 +967,7 @@ m4_ifdef([b4_lex_param], [, ]b4_lex_param)));])[
   void
   ]b4_parser_class_name[::error (const syntax_error& yyexc)
   {
-    error (]b4_args(b4_locations_if([yyexc.location]),
+    error (]b4_join(b4_locations_if([yyexc.location]),
                     [[yyexc.what()]])[);
   }