X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/aefef0d6cf40ee09d6ffb6b24547adc718de6327..23eb2a692f2e966c840d5f953de4bf8e26d71225:/data/yacc.c

diff --git a/data/yacc.c b/data/yacc.c
index 1e8fa569..cdc69203 100644
--- a/data/yacc.c
+++ b/data/yacc.c
@@ -160,8 +160,6 @@ m4_if(b4_prefix, [yy], [],
 #define yynerrs b4_prefix[]nerrs
 b4_locations_if([#define yylloc b4_prefix[]lloc])])[
 
-]b4_token_enums_defines(b4_tokens)[
-
 /* Copy the first part of user declarations.  */
 ]b4_pre_prologue[
 
@@ -183,17 +181,23 @@ b4_locations_if([#define yylloc b4_prefix[]lloc])])[
 # define YYTOKEN_TABLE ]b4_token_table[
 #endif
 
+]m4_ifdef([b4_start_header],
+[[/* Copy the %start-header blocks.  */
+]b4_start_header])[]dnl
+
+b4_token_enums_defines(b4_tokens)[
+
 #if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
 ]m4_ifdef([b4_stype],
-[typedef union[]m4_bregexp(b4_stype, [^{], [ YYSTYPE])
-b4_stype
-/* Line __line__ of yacc.c.  */
-b4_syncline([@oline@], [@ofile@])
-	YYSTYPE;],
-[typedef int YYSTYPE;])[
+[[typedef union ]b4_union_name[
+]b4_user_stype[
+	YYSTYPE;
+# define YYSTYPE_IS_TRIVIAL 1]],
+[m4_if(b4_tag_seen_flag, 0,
+[[typedef int YYSTYPE;
+# define YYSTYPE_IS_TRIVIAL 1]])])[
 # define yystype YYSTYPE /* obsolescent; will be withdrawn */
 # define YYSTYPE_IS_DECLARED 1
-# define YYSTYPE_IS_TRIVIAL 1
 #endif
 
 ]b4_locations_if([#if ! defined YYLTYPE && ! defined YYLTYPE_IS_DECLARED
@@ -207,14 +211,14 @@ typedef struct YYLTYPE
 # define yyltype YYLTYPE /* obsolescent; will be withdrawn */
 # define YYLTYPE_IS_DECLARED 1
 # define YYLTYPE_IS_TRIVIAL 1
-#endif
-])[
+#endif])
 
-/* Copy the second part of user declarations.  */
-]b4_post_prologue
+m4_ifdef([b4_end_header],
+[[/* Copy the %end-header blocks.  */
+]b4_end_header])[]dnl
 
-/* Line __line__ of yacc.c.  */
-b4_syncline([@oline@], [@ofile@])[
+[/* Copy the second part of user declarations.  */
+]b4_user_post_prologue[
 
 #ifdef short
 # undef short
@@ -284,9 +288,9 @@ typedef short int yytype_int16;
 #ifndef lint
 # define YYID(n) (n)
 #else
-]b4_c_function_def([YYID], [static int], [[int i], [i]])[
+]b4_c_function_def([YYID], [static int], [[int yyi], [yyi]])[
 {
-  return i;
+  return yyi;
 }
 #endif
 
@@ -671,12 +675,15 @@ do {									  \
 `------------------------------------------------------------------*/
 
 ]b4_c_function_def([yy_stack_print], [static void],
-		   [[yytype_int16 *bottom], [bottom]],
-		   [[yytype_int16 *top],    [top]])[
+		   [[yytype_int16 *yybottom], [yybottom]],
+		   [[yytype_int16 *yytop],    [yytop]])[
 {
   YYFPRINTF (stderr, "Stack now");
-  for (; bottom <= top; ++bottom)
-    YYFPRINTF (stderr, " %d", *bottom);
+  for (; yybottom <= yytop; yybottom++)
+    {
+      int yybot = *yybottom;
+      YYFPRINTF (stderr, " %d", yybot);
+    }
   YYFPRINTF (stderr, "\n");
 }
 
@@ -964,15 +971,15 @@ yysyntax_error (char *yyresult, int yystate, int yychar)
 # Declare the variables that are global, or local to YYPARSE if
 # pure-parser.
 m4_define([b4_declare_parser_variables],
-[/* The look-ahead symbol.  */
+[/* The lookahead symbol.  */
 int yychar;
 
-/* The semantic value of the look-ahead symbol.  */
+/* The semantic value of the lookahead symbol.  */
 YYSTYPE yylval;
 
 /* Number of syntax errors so far.  */
 int yynerrs;b4_locations_if([
-/* Location data for the look-ahead symbol.  */
+/* Location data for the lookahead symbol.  */
 YYLTYPE yylloc;])
 ])
 m4_divert_pop([KILL])dnl# ====================== End of M4 code.
@@ -997,7 +1004,7 @@ b4_c_function_def([yyparse], [int], b4_parse_param)
   int yyresult;
   /* Number of tokens to shift before error messages enabled.  */
   int yyerrstatus;
-  /* Look-ahead token as an internal (translated) token number.  */
+  /* Lookahead token as an internal (translated) token number.  */
   int yytoken = 0;
 #if YYERROR_VERBOSE
   /* Buffer for error messages, and its allocated size.  */
@@ -1062,20 +1069,17 @@ b4_c_function_def([yyparse], [int], b4_parse_param)
 ]b4_locations_if([[  yylsp = yyls;
 #if YYLTYPE_IS_TRIVIAL
   /* Initialize the default location before parsing starts.  */
-  yylloc.first_line   = yylloc.last_line   = 1;
-  yylloc.first_column = yylloc.last_column = 0;
+  yylloc.first_line   = yylloc.last_line   = ]b4_location_initial_line[;
+  yylloc.first_column = yylloc.last_column = ]b4_location_initial_column[;
 #endif
 ]])
 m4_ifdef([b4_initial_action], [
 m4_pushdef([b4_at_dollar],     [m4_define([b4_at_dollar_used])yylloc])dnl
 m4_pushdef([b4_dollar_dollar], [m4_define([b4_dollar_dollar_used])yylval])dnl
   /* User initialization code.  */
-b4_initial_action
+  b4_user_initial_action
 m4_popdef([b4_dollar_dollar])dnl
-m4_popdef([b4_at_dollar])dnl
-/* Line __line__ of yacc.c.  */
-b4_syncline([@oline@], [@ofile@])
-])dnl
+m4_popdef([b4_at_dollar])])dnl
 m4_ifdef([b4_dollar_dollar_used],[[  yyvsp[0] = yylval;
 ]])dnl
 m4_ifdef([b4_at_dollar_used], [[  yylsp[0] = yylloc;
@@ -1168,16 +1172,16 @@ m4_ifdef([b4_at_dollar_used], [[  yylsp[0] = yylloc;
 yybackup:
 
   /* Do appropriate processing given the current state.  Read a
-     look-ahead token if we need one and don't already have one.  */
+     lookahead token if we need one and don't already have one.  */
 
-  /* First try to decide what to do without reference to look-ahead token.  */
+  /* First try to decide what to do without reference to lookahead token.  */
   yyn = yypact[yystate];
   if (yyn == YYPACT_NINF)
     goto yydefault;
 
-  /* Not known => get a look-ahead token if don't already have one.  */
+  /* Not known => get a lookahead token if don't already have one.  */
 
-  /* YYCHAR is either YYEMPTY or YYEOF or a valid look-ahead symbol.  */
+  /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol.  */
   if (yychar == YYEMPTY)
     {
       YYDPRINTF ((stderr, "Reading a token: "));
@@ -1217,7 +1221,7 @@ yybackup:
   if (yyerrstatus)
     yyerrstatus--;
 
-  /* Shift the look-ahead token.  */
+  /* Shift the lookahead token.  */
   YY_SYMBOL_PRINT ("Shifting", yytoken, &yylval, &yylloc);
 
   /* Discard the shifted token unless it is eof.  */
@@ -1263,9 +1267,7 @@ yyreduce:
   YY_REDUCE_PRINT (yyn);
   switch (yyn)
     {
-      ]b4_actions
-/* Line __line__ of yacc.c.  */
-b4_syncline([@oline@], [@ofile@])[
+      ]b4_user_actions[
       default: break;
     }
   YY_SYMBOL_PRINT ("-> $$ =", yyr1[yyn], &yyval, &yyloc);
@@ -1341,7 +1343,7 @@ yyerrlab:
 
   if (yyerrstatus == 3)
     {
-      /* If just tried and failed to reuse look-ahead token after an
+      /* If just tried and failed to reuse lookahead token after an
 	 error, discard it.  */
 
       if (yychar <= YYEOF)
@@ -1358,7 +1360,7 @@ yyerrlab:
 	}
     }
 
-  /* Else will try to reuse look-ahead token after shifting the error
+  /* Else will try to reuse lookahead token after shifting the error
      token.  */
   goto yyerrlab1;
 
@@ -1423,7 +1425,7 @@ yyerrlab1:
 ]b4_locations_if([[
   yyerror_range[1] = yylloc;
   /* Using YYLLOC is tempting, but would change the location of
-     the look-ahead.  YYLOC is available though.  */
+     the lookahead.  YYLOC is available though.  */
   YYLLOC_DEFAULT (yyloc, (yyerror_range - 1), 2);
   *++yylsp = yyloc;]])[
 
@@ -1491,22 +1493,26 @@ b4_defines_if(
 b4_copyright([Skeleton interface for Bison's Yacc-like parsers in C],dnl '
   [1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006])
 
+m4_ifdef([b4_start_header],
+[[/* Copy the %start-header blocks.  */
+]b4_start_header])[]dnl
+
 b4_token_enums_defines(b4_tokens)
 
-#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
-m4_ifdef([b4_stype],
-[typedef union[]m4_bregexp(b4_stype, [^{], [ YYSTYPE])
-b4_stype
-/* Line __line__ of yacc.c.  */
-b4_syncline([@oline@], [@ofile@])
-	YYSTYPE;],
-[typedef int YYSTYPE;])
+[#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
+]m4_ifdef([b4_stype],
+[[typedef union ]b4_union_name[
+]b4_user_stype[
+	YYSTYPE;
+# define YYSTYPE_IS_TRIVIAL 1]],
+[m4_if(b4_tag_seen_flag, 0,
+[[typedef int YYSTYPE;
+# define YYSTYPE_IS_TRIVIAL 1]])])[
 # define yystype YYSTYPE /* obsolescent; will be withdrawn */
 # define YYSTYPE_IS_DECLARED 1
-# define YYSTYPE_IS_TRIVIAL 1
 #endif
 
-b4_pure_if([],
+]b4_pure_if([],
 [extern YYSTYPE b4_prefix[]lval;])
 
 b4_locations_if(
@@ -1523,7 +1529,11 @@ typedef struct YYLTYPE
 # define YYLTYPE_IS_TRIVIAL 1
 #endif
 
-b4_pure_if([],
+]b4_pure_if([],
 	   [extern YYLTYPE b4_prefix[]lloc;])
-])dnl b4_locations_if
+)dnl b4_locations_if
+
+m4_ifdef([b4_end_header],
+[[/* Copy the %end-header blocks.  */
+]b4_end_header])[]dnl
 ])dnl b4_defines_if