X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/94ebeba53ffd20afbc5d0c9caa3c80c40e910e4c..7d596384905f92f64573bd2d1378ae9041daa1fd:/data/push.c

diff --git a/data/push.c b/data/push.c
index 958d596d..220c0616 100644
--- a/data/push.c
+++ b/data/push.c
@@ -63,7 +63,6 @@ b4_locations_if([, [[YYLTYPE *], [&yylloc]]])m4_ifdef([b4_lex_param], [, ])])dnl
 m4_ifdef([b4_lex_param], b4_lex_param)))
 
 
-
 ## ------------ ##
 ## Data Types.  ##
 ## ------------ ##
@@ -150,19 +149,20 @@ b4_copyright([Skeleton implementation for Bison's Yacc-like parsers in C],dnl '
 
 ]b4_identification
 m4_if(b4_prefix, [yy], [],
-[/* Substitute the variable and function names.  */
-]b4_push_if([#define yypush_parse b4_prefix[]push_parse
-#define yypstate_new b4_prefix[]pstate_new
-#define yypstate_delete b4_prefix[]pstate_delete
-#define yypstate b4_prefix[]pstate],
-[#define yyparse b4_prefix[]parse])[
-#define yylex   b4_prefix[]lex
-#define yyerror b4_prefix[]error
-#define yylval  b4_prefix[]lval
-#define yychar  b4_prefix[]char
-#define yydebug b4_prefix[]debug
-#define yynerrs b4_prefix[]nerrs
-b4_locations_if([#define yylloc b4_prefix[]lloc])])[
+[[/* Substitute the variable and function names.  */
+]b4_pull_if([[#define yyparse         ]b4_prefix[parse
+]])b4_push_if([[#define yypush_parse    ]b4_prefix[push_parse
+]b4_pull_if([[#define yypull_parse    ]b4_prefix[pull_parse
+]])[#define yypstate_new    ]b4_prefix[pstate_new
+#define yypstate_delete ]b4_prefix[pstate_delete
+#define yypstate        ]b4_prefix[pstate
+]])[#define yylex           ]b4_prefix[lex
+#define yyerror         ]b4_prefix[error
+#define yylval          ]b4_prefix[lval
+#define yychar          ]b4_prefix[char
+#define yydebug         ]b4_prefix[debug
+#define yynerrs         ]b4_prefix[nerrs
+]b4_locations_if([[#define yylloc          ]b4_prefix[lloc]])])[
 
 /* Copy the first part of user declarations.  */
 ]b4_user_pre_prologue[
@@ -222,15 +222,20 @@ b4_push_if([[#ifndef YYPUSH_DECLS
 struct yypstate;
 typedef struct yypstate yypstate;
 enum { YYPUSH_MORE = 4 };
-]b4_c_function_decl([[yypstate_new]], [[yypstate *]], [[[void]], []])
-b4_c_function_decl([[yypstate_delete]], [[void]],
-                   [[[yypstate *yyps]], [[yyps]]])
-b4_c_function_decl([[yypush_parse]], [[int]],
+
+]b4_pull_if([b4_c_function_decl([[yyparse]], [[int]], b4_parse_param)
+])b4_c_function_decl([[yypush_parse]], [[int]],
   [[[yypstate *yyps]], [[yyps]]]b4_pure_if([,
   [[[int yypushed_char]], [[yypushed_char]]],
   [[[YYSTYPE const *yypushed_val]], [[yypushed_val]]]b4_locations_if([,
   [[[YYLTYPE const *yypushed_loc]], [[yypushed_loc]]]])])m4_ifset([b4_parse_param], [,
-  b4_parse_param]))[
+  b4_parse_param]))
+b4_pull_if([b4_c_function_decl([[yypull_parse]], [[int]],
+  [[[yypstate *yyps]], [[yyps]]]m4_ifset([b4_parse_param], [,
+  b4_parse_param]))])
+b4_c_function_decl([[yypstate_new]], [[yypstate *]], [[[void]], []])
+b4_c_function_decl([[yypstate_delete]], [[void]],
+                   [[[yypstate *yyps]], [[yyps]]])[
 #endif
 ]])
 m4_ifdef([b4_provides],
@@ -1011,12 +1016,8 @@ m4_define([b4_declare_parser_state_variables],
     int yynerrs;
 ]])[
     int yystate;
-    int yyn;
-    int yyresult;
     /* Number of tokens to shift before error messages enabled.  */
     int yyerrstatus;
-    /* Look-ahead token as an internal (translated) token number.  */
-    int yytoken;
 
     /* Three stacks and their tools:
        `yyss': related to states,
@@ -1045,12 +1046,7 @@ m4_define([b4_declare_parser_state_variables],
     YYLTYPE yyerror_range[2];
 ]])[
     YYSIZE_T yystacksize;
-
-    /* The variables used to return semantic value and location from the
-       action routines.  */
-    YYSTYPE yyval;
-]b4_locations_if([[    YYLTYPE yyloc;
-]])])
+]])
 
 m4_divert_pop([KILL])dnl# ====================== End of M4 code.
 
@@ -1065,11 +1061,40 @@ b4_push_if(
     int yynew;
   };
 
+]b4_pull_if([b4_c_function_def([[yyparse]], [[int]], b4_parse_param)[
+{
+  return yypull_parse (0]m4_ifset([b4_parse_param],
+                                  [[, ]b4_c_args(b4_parse_param)])[);
+}
+
+]b4_c_function_def([[yypull_parse]], [[int]],
+  [[[yypstate *yyps]], [[yyps]]]m4_ifset([b4_parse_param], [,
+  b4_parse_param]))[
+{
+  int yystatus;
+  yypstate *yyps_local;
+]b4_pure_if([[  int yychar;
+  YYSTYPE yylval;
+]b4_locations_if([[  YYLTYPE yylloc;
+]])])[
+  if (yyps == 0)
+     yyps_local = yypstate_new ();
+   else
+     yyps_local = yyps;
+   do {
+     yychar = YYLEX;
+     yystatus =
+       yypush_parse (yyps_local]b4_pure_if([[, yychar, &yylval]b4_locations_if([[, &yylloc]])])m4_ifset([b4_parse_param], [, b4_c_args(b4_parse_param)])[);
+  } while (yystatus == YYPUSH_MORE);
+  if (yyps == 0)
+    yypstate_delete (yyps_local);
+  return yystatus;
+}
+]])[
 /* Initialize the parser data structure.  */
 ]b4_c_function_def([[yypstate_new]], [[yypstate *]])[
 {
   yypstate *yyps = (yypstate *) malloc (sizeof *yyps);
-  yyps->yyresult = -1;
   yyps->yynew = 1;
   return yyps;
 }
@@ -1082,10 +1107,7 @@ b4_push_if(
 
 ]b4_pure_if([[#define ]b4_prefix[nerrs yyps->]b4_prefix[nerrs
 ]])[#define yystate yyps->yystate
-#define yyn yyps->yyn
-#define yyresult yyps->yyresult
 #define yyerrstatus yyps->yyerrstatus
-#define yytoken yyps->yytoken
 #define yyssa yyps->yyssa
 #define yyss yyps->yyss
 #define yyssp yyps->yyssp
@@ -1097,9 +1119,7 @@ b4_push_if(
 #define yylsp yyps->yylsp
 #define yyerror_range yyps->yyerror_range
 ]])[#define yystacksize yyps->yystacksize
-#define yyval yyps->yyval
-]b4_locations_if([[#define yyloc yyps->yyloc
-]])])[
+]])[
 
 /*-------------------------.
 | yyparse or yypush_parse.  |
@@ -1124,7 +1144,15 @@ b4_c_function_def([yyparse], [int], b4_parse_param)
   ]b4_locations_if([[YYLTYPE yypushed_loc = yylloc;
 ]])])],
   [b4_declare_parser_state_variables])[
-
+  int yyn;
+  int yyresult;
+  /* Look-ahead token as an internal (translated) token number.  */
+  int yytoken;
+  /* The variables used to return semantic value and location from the
+     action routines.  */
+  YYSTYPE yyval;
+]b4_locations_if([[  YYLTYPE yyloc;
+]])[
 #if YYERROR_VERBOSE
   /* Buffer for error messages, and its allocated size.  */
   char yymsgbuf[128];
@@ -1139,7 +1167,10 @@ b4_c_function_def([yyparse], [int], b4_parse_param)
   int yylen = 0;
 ]b4_push_if([[
   if (!yyps->yynew)
-    goto yyread_pushed_token;
+    {
+      yyn = yypact[yystate];
+      goto yyread_pushed_token;
+    }
 ]])[
   yytoken = 0;
   yyss = yyssa;
@@ -1593,16 +1624,19 @@ yyreturn:
   if (yyss != yyssa)
     YYSTACK_FREE (yyss);
 #endif
-]b4_push_if([yypushreturn:])[
-#if YYERROR_VERBOSE
+]b4_push_if([[  yyps->yynew = 1;
+
+yypushreturn:
+]])[#if YYERROR_VERBOSE
   if (yymsg != yymsgbuf)
     YYSTACK_FREE (yymsg);
 #endif
   /* Make sure YYID is used.  */
   return YYID (yyresult);
-]}
+}
 
-b4_epilogue
+
+]b4_epilogue
 b4_defines_if(
 [@output b4_spec_defines_file
 b4_copyright([Skeleton interface for Bison's Yacc-like parsers in C],dnl '
@@ -1651,16 +1685,20 @@ b4_push_if([[#ifndef YYPUSH_DECLS
 struct ]b4_prefix[pstate;
 typedef struct ]b4_prefix[pstate ]b4_prefix[pstate;
 enum { YYPUSH_MORE = 4 };
-]b4_c_function_decl([b4_prefix[pstate_new]], [b4_prefix[pstate *]],
-                    [[[void]], []])
-b4_c_function_decl([b4_prefix[pstate_delete]], [[void]],
-                   [[b4_prefix[pstate *yyps]], [[yyps]]])
-b4_c_function_decl([b4_prefix[push_parse]], [[int]],
+]b4_pull_if([b4_c_function_decl([b4_prefix[parse]], [[int]], b4_parse_param)
+])b4_c_function_decl([b4_prefix[push_parse]], [[int]],
   [[b4_prefix[pstate *yyps]], [[yyps]]]b4_pure_if([,
   [[[int yypushed_char]], [[yypushed_char]]],
   [[[YYSTYPE const *yypushed_val]], [[yypushed_val]]]b4_locations_if([,
   [[[YYLTYPE const *yypushed_loc]], [[yypushed_loc]]]])])m4_ifset([b4_parse_param], [,
-  b4_parse_param]))[
+  b4_parse_param]))
+b4_pull_if([b4_c_function_decl([b4_prefix[pull_parse]], [[int]],
+  [[b4_prefix[pstate *yyps]], [[yyps]]]m4_ifset([b4_parse_param], [,
+  b4_parse_param]))])
+b4_c_function_decl([b4_prefix[pstate_new]], [b4_prefix[pstate *]],
+                    [[[void]], []])
+b4_c_function_decl([b4_prefix[pstate_delete]], [[void]],
+                   [[b4_prefix[pstate *yyps]], [[yyps]]])[
 #endif
 ]])
 m4_ifdef([b4_provides],