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62a3e4f0c5
RITEM. Note that it must be able to code symbol numbers as positive number, and the negation of rule numbers as negative numbers. Adjust all dependencies (pretty many). * src/reduce.c (rule): Remove this `short *' pointer: use item_number_t. * src/system.h (MINSHORT, MAXSHORT): Remove. Include `limits.h'. Adjust dependencies to using SHRT_MAX and SHRT_MIN. (shortcpy): Remove. (MAXTABLE): Move to... * src/output.c (MAXTABLE): here. (prepare_rules): Use output_int_table to output rhs. * data/bison.simple, data/bison.c++: Adjust. * tests/torture.at (Big triangle): Move the limit from 254 to 500. * tests/regression.at (Web2c Actions): Ajust. Trying with bigger grammars shows various phenomena: at 3000 (28Mb of grammar file) bison is killed by my system, at 2000 (12Mb) bison passes, but produces negative #line number, once fixed, GCC is killed while compiling 14Mb, at 1500 (6.7 Mb of grammar, 8.2Mb of C), it passes. * src/state.h (state_h): Code input lines on ints, not shorts.
123 lines
3.2 KiB
C
123 lines
3.2 KiB
C
/* Top level entry point of bison,
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Copyright 1984, 1986, 1989, 1992, 1995, 2000, 2001, 2002
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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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#include "system.h"
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#include "bitset.h"
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#include "getargs.h"
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#include "symtab.h"
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#include "gram.h"
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#include "files.h"
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#include "complain.h"
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#include "derives.h"
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#include "output.h"
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#include "reader.h"
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#include "lalr.h"
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#include "reduce.h"
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#include "nullable.h"
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#include "print.h"
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#include "LR0.h"
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#include "conflicts.h"
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#include "print_graph.h"
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#include "muscle_tab.h"
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#include "lex.h"
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/* The name this program was run with, for messages. */
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char *program_name;
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int
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main (int argc, char *argv[])
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{
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program_name = argv[0];
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setlocale (LC_ALL, "");
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bindtextdomain (PACKAGE, LOCALEDIR);
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textdomain (PACKAGE);
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bitset_stats_init ();
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lineno = 0;
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getargs (argc, argv);
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muscle_init ();
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/* Read the input. Copy some parts of it to FGUARD, FACTION, FTABLE
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and FATTRS. In file reader.c. The other parts are recorded in
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the grammar; see gram.h. */
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reader ();
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if (complain_message_count)
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exit (1);
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/* Find useless nonterminals and productions and reduce the grammar. */
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reduce_grammar ();
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/* Record other info about the grammar. In files derives and
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nullable. */
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set_derives ();
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set_nullable ();
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/* Convert to nondeterministic finite state machine. In file LR0.
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See state.h for more info. */
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generate_states ();
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/* make it deterministic. In file lalr. */
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lalr ();
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/* Find and record any conflicts: places where one token of
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lookahead is not enough to disambiguate the parsing. In file
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conflicts. Also resolve s/r conflicts based on precedence
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declarations. */
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solve_conflicts ();
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conflicts_print ();
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/* Output file names. */
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compute_output_file_names ();
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/* Output the detailed report on the grammar. */
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if (verbose_flag)
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print_results ();
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/* Stop if there were errors, to avoid trashing previous output
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files. */
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if (complain_message_count)
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exit (1);
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/* Output the VCG graph. */
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if (graph_flag)
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print_graph ();
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/* Output the tables and the parser to ftable. In file output. */
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output ();
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reduce_free ();
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free_conflicts ();
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free_nullable ();
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free_derives ();
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grammar_free ();
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/* If using alloca.c, flush the alloca'ed memory for the benefit of
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people running Bison as a library in IDEs. */
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#if C_ALLOCA
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alloca (0);
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#endif
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return complain_message_count ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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