mirror of
https://git.savannah.gnu.org/git/bison.git
synced 2026-03-10 12:53:03 +00:00
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.
-*- outline -*- This directory contains Bison skeletons: the general shapes of the different parser kinds, that are specialized for specific grammars by the bison program. Currently, there are only three supported skeletons: - yacc.c It used to be named bison.simple: it corresponds to C Yacc compatible LALR(1) parsers. - lalr1.cc Produces a C++ parser class. It is still very experimental, and not yet supported. Please, subscribe to bison-patches@gnu.org. - glr.c A Generalized LR C parser based on Bison's LALR(1) tables. These skeletons are the only ones supported by the Bison team. Because the interface between skeletons and the bison program is not finished, *we are not bound to it*. In particular, Bison is not mature enough for us to consider that ``foreign skeletons'' are supported. ----- Copyright (C) 2002 Free Software Foundation, Inc. This file is part of GNU Bison. 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 3 of the License, or (at your option) any later version. 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 this program. If not, see <http://www.gnu.org/licenses/>.