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115 lines
3.7 KiB
C
115 lines
3.7 KiB
C
/* Input parser for bison
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Copyright (C) 2000, 2001, 2002 Free Software Foundation, Inc.
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This file is part of Bison, the GNU Compiler Compiler.
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Bison is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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Bison is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Bison; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef READER_H_
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# define READER_H_
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typedef struct symbol_list
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{
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struct symbol_list *next;
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symbol_t *sym;
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int line;
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/* The action is attached to the LHS of a rule. */
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const char *action;
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int action_line;
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symbol_t *ruleprec;
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} symbol_list;
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# include "parse-gram.h"
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typedef int location_t;
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/* Initialize LOC. */
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# define LOCATION_RESET(Loc) \
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(Loc).first_column = (Loc).first_line = 1; \
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(Loc).last_column = (Loc).last_line = 1;
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/* Advance of NUM columns. */
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# define LOCATION_COLUMNS(Loc, Num) \
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(Loc).last_column += Num;
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/* Advance of NUM lines. */
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# define LOCATION_LINES(Loc, Num) \
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(Loc).last_column = 1; \
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(Loc).last_line += Num;
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/* Restart: move the first cursor to the last position. */
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# define LOCATION_STEP(Loc) \
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(Loc).first_column = (Loc).last_column; \
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(Loc).first_line = (Loc).last_line;
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/* Output LOC on the stream OUT. */
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# define LOCATION_PRINT(Out, Loc) \
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fprintf (stderr, "%s:", infile); \
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if ((Loc).first_line != (Loc).last_line) \
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fprintf (Out, "%d.%d-%d.%d", \
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(Loc).first_line, (Loc).first_column, \
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(Loc).last_line, (Loc).last_column - 1); \
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else if ((Loc).first_column < (Loc).last_column - 1) \
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fprintf (Out, "%d.%d-%d", (Loc).first_line, \
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(Loc).first_column, (Loc).last_column - 1); \
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else \
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fprintf (Out, "%d.%d", (Loc).first_line, (Loc).first_column)
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typedef struct gram_control_s
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{
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int errcode;
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} gram_control_t;
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/* From the scanner. */
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extern FILE *gram_in;
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extern int gram__flex_debug;
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void scanner_last_string_free PARAMS ((void));
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void scanner_free PARAMS ((void));
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# define YY_DECL \
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int gram_lex (yystype *yylval, yyltype *yylloc, \
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gram_control_t *yycontrol)
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YY_DECL;
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/* From the parser. */
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extern int gram_debug;
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void gram_error (gram_control_t *control,
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yyltype *loc, const char *msg);
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int gram_parse (void *control);
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char *get_type_name PARAMS ((int n, symbol_list *rule));
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extern int typed;
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/* From reader.c. */
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void grammar_start_symbol_set PARAMS ((symbol_t *s));
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void prologue_augment PARAMS ((const char *prologue, location_t location));
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void epilogue_set PARAMS ((const char *epilogue, location_t location));
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void grammar_symbol_append PARAMS ((symbol_t *s));
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void grammar_rule_begin PARAMS ((symbol_t *lhs));
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void grammar_rule_end PARAMS ((void));
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void grammar_midrule_action PARAMS ((void));
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void grammar_current_rule_prec_set PARAMS ((symbol_t *precsym));
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void grammar_current_rule_symbol_append PARAMS ((symbol_t *symbol));
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void grammar_current_rule_action_append PARAMS ((const char *action,
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int line));
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extern symbol_list *current_rule;
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void reader PARAMS ((void));
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#endif /* !READER_H_ */
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