doc: create a new Tuning LR section in the manual.

[bison.git] / src / reader.h

diff --git a/src/reader.h b/src/reader.h
index c298891173e244a4c43e74ac25882c58b7702401..1c094056be8ef5cfbee6a2fb2f3ef75625821a68 100644 (file)
--- a/src/reader.h
+++ b/src/reader.h
@@ -1,39 +1,71 @@
-/* Input parser for bison
-   Copyright 2000 Free Software Foundation, Inc.
+/* Input parser for Bison
+
+   Copyright (C) 2000-2003, 2005-2007, 2009-2011 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_
 
-/* Read in the grammar specification and record it in the format
-   described in gram.h.  All guards are copied into the FGUARD file
-   and all actions into FACTION, in each case forming the body of a C
-   function (YYGUARD or YYACTION) which contains a switch statement to
-   decide which guard or action to execute.  */
+# include "location.h"
+# include "symlist.h"
+# include "named-ref.h"
+
+# include "parse-gram.h"
+
+typedef struct merger_list
+{
+  struct merger_list* next;
+  uniqstr name;
+  uniqstr type;
+  location type_declaration_location;
+} merger_list;
+
+/* From the parser.  */
+extern int gram_debug;
+int gram_parse (void);
+char const *token_name (int type);
+
+
+/* From reader.c. */
+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);
+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 *named_ref);
+void grammar_current_rule_action_append (const char *action, location loc,
+                                        named_ref *named_ref);
+void reader (void);
+void free_merger_functions (void);
 
-extern void reader PARAMS ((void));
+extern merger_list *merge_functions;
 
+/* Was %union seen?  */
+extern bool union_seen;
 
-extern void reader_output_yylsp PARAMS ((struct obstack *));
+/* Was a tag seen?  */
+extern bool tag_seen;
 
-extern int lineno;
-extern char **tags;
-extern short *user_toknums;
+/* Should rules have a default precedence?  */
+extern bool default_prec;
 
 #endif /* !READER_H_ */