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useful ones and add a "usefulness" attribute. Discussed starting at <http://lists.gnu.org/archive/html/bison-patches/2007-09/msg00017.html>. * src/gram.c (grammar_rules_partial_print_xml): Remove. (grammar_rules_print_xml): Print all rules instead of just those useful in the grammar, and add a "usefulness" attribute. * src/gram.h (grammar_rules_partial_print_xml): Remove prototype. * src/print-xml.c (print_rules_useless_in_parser): Remove. (print_grammar): Print all nonterminals instead of just useful ones, and add a "usefulness" attribute to nonterminals and terminals. (print_xml): Don't print a separate "reductions" or "rules-useless-in-parser" element. * src/reduce.c (reduce_output): Use reduce_token_unused_in_grammar. (reduce_xml): Remove. (reduce_token_unused_in_grammar): New. (reduce_nonterminal_useless_in_grammar): New. * src/reduce.h (reduce_xml): Remove prototype. (reduce_token_unused_in_grammar): Add prototype. (reduce_nonterminal_useless_in_grammar): Add prototype. * data/xslt/xml2text.xsl: Update for XML changes. * data/xslt/xml2xhtml.xsl: Update for XML changes. * tests/reduce.at (Useless Terminals): Update output. (Useless Rules): Update output. (Reduced Automaton): Update output. Say "Terminals unused in grammar" instead of "Unused terminals". * NEWS (2.3a+): Update. * doc/bison.texinfo (Understanding): Update example output. * src/reduce.c (reduce_output): Implement. * data/xslt/xml2text.xsl: Implement. * data/xslt/xml2xhtml.xsl: Implement.
32 lines
1.1 KiB
C
32 lines
1.1 KiB
C
/* Grammar reduction for Bison.
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Copyright (C) 2000, 2001, 2002, 2007 Free Software Foundation, Inc.
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This file is part of Bison, the GNU Compiler Compiler.
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This program 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 3 of the License, or
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(at your option) any later version.
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This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef REDUCE_H_
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# define REDUCE_H_
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void reduce_grammar (void);
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void reduce_output (FILE *out);
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bool reduce_token_unused_in_grammar (symbol_number i);
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bool reduce_nonterminal_useless_in_grammar (symbol_number i);
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void reduce_free (void);
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extern symbol_number nuseless_nonterminals;
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extern rule_number nuseless_productions;
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#endif /* !REDUCE_H_ */
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