-/* Input parser for bison
- Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
+/* Input parser for Bison
+
+ Copyright (C) 2000-2003, 2005-2007, 2009-2013 Free Software
+ Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
- Bison is free software; you can redistribute it and/or modify
+ This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
- Bison is distributed in the hope that it will be useful,
+ This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with Bison; see the file COPYING. If not, write to
- the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef READER_H_
# define READER_H_
-typedef struct symbol_list
-{
- struct symbol_list *next;
- symbol_t *sym;
- int line;
-
- /* The action is attached to the LHS of a rule. */
- const char *action;
- int action_line;
-
- symbol_t *ruleprec;
-} symbol_list;
+# include "location.h"
+# include "symlist.h"
+# include "named-ref.h"
# include "parse-gram.h"
-typedef int location_t;
-
-/* Initialize LOC. */
-# define LOCATION_RESET(Loc) \
- (Loc).first_column = (Loc).first_line = 1; \
- (Loc).last_column = (Loc).last_line = 1;
-
-/* Advance of NUM columns. */
-# define LOCATION_COLUMNS(Loc, Num) \
- (Loc).last_column += Num;
-
-/* Advance of NUM lines. */
-# define LOCATION_LINES(Loc, Num) \
- (Loc).last_column = 1; \
- (Loc).last_line += Num;
-
-/* Restart: move the first cursor to the last position. */
-# define LOCATION_STEP(Loc) \
- (Loc).first_column = (Loc).last_column; \
- (Loc).first_line = (Loc).last_line;
-
-/* Output LOC on the stream OUT. */
-# define LOCATION_PRINT(Out, Loc) \
- fprintf (stderr, "%s:", infile); \
- if ((Loc).first_line != (Loc).last_line) \
- fprintf (Out, "%d.%d-%d.%d", \
- (Loc).first_line, (Loc).first_column, \
- (Loc).last_line, (Loc).last_column - 1); \
- else if ((Loc).first_column < (Loc).last_column - 1) \
- fprintf (Out, "%d.%d-%d", (Loc).first_line, \
- (Loc).first_column, (Loc).last_column - 1); \
- else \
- fprintf (Out, "%d.%d", (Loc).first_line, (Loc).first_column)
-
-typedef struct gram_control_s
+typedef struct merger_list
{
- int errcode;
-} gram_control_t;
-
-/* From the scanner. */
-extern FILE *gram_in;
-extern int gram__flex_debug;
-void scanner_last_string_free PARAMS ((void));
-void scanner_initialize PARAMS ((void));
-void scanner_free PARAMS ((void));
-
-# define YY_DECL \
- int gram_lex (yystype *yylval, yyltype *yylloc, \
- gram_control_t *yycontrol)
-YY_DECL;
-
+ struct merger_list* next;
+ uniqstr name;
+ uniqstr type;
+ location type_declaration_location;
+} merger_list;
/* From the parser. */
extern int gram_debug;
-void gram_error (gram_control_t *control,
- yyltype *loc, const char *msg);
-int gram_parse (void *control);
+int gram_parse (void);
+char const *token_name (int type);
-char *get_type_name PARAMS ((int n, symbol_list *rule));
-extern int typed;
/* From reader.c. */
-void grammar_start_symbol_set PARAMS ((symbol_t *s));
-void prologue_augment PARAMS ((const char *prologue, location_t location));
-void epilogue_set PARAMS ((const char *epilogue, location_t location));
-void grammar_symbol_append PARAMS ((symbol_t *s));
-void grammar_rule_begin PARAMS ((symbol_t *lhs));
-void grammar_rule_end PARAMS ((void));
-void grammar_midrule_action PARAMS ((void));
-void grammar_current_rule_prec_set PARAMS ((symbol_t *precsym));
-void grammar_current_rule_symbol_append PARAMS ((symbol_t *symbol));
-void grammar_current_rule_action_append PARAMS ((const char *action,
- int line));
-extern symbol_list *current_rule;
-void reader PARAMS ((void));
+void grammar_start_symbol_set (symbol *sym, location loc);
+void grammar_current_rule_begin (symbol *lhs, location loc,
+ named_ref *lhs_named_ref);
+void grammar_current_rule_end (location loc);
+void grammar_midrule_action (void);
+/* Apply %empty to the current rule. */
+void grammar_current_rule_empty_set (location loc);
+void grammar_current_rule_prec_set (symbol *precsym, location loc);
+void grammar_current_rule_dprec_set (int dprec, location loc);
+void grammar_current_rule_merge_set (uniqstr name, location loc);
+void grammar_current_rule_symbol_append (symbol *sym, location loc,
+ named_ref *nref);
+void grammar_current_rule_action_append (const char *action, location loc,
+ named_ref *nref, bool);
+void reader (void);
+void free_merger_functions (void);
+
+extern merger_list *merge_functions;
+
+/* Was %union seen? */
+extern bool union_seen;
+
+/* Was a tag seen? */
+extern bool tag_seen;
+
+/* Should rules have a default precedence? */
+extern bool default_prec;
#endif /* !READER_H_ */
projects / bison.git / blobdiff