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* doc/bison.texinfo (Mid-Rule Actions): Mention that periods and dashes make symbol names less convenient for named references. * src/scan-code.l: (handle_action_dollar): New arg textlen. All callers changed. (handle_action_at): Likewise. Also, args are pointers to const. (ref_tail_fields): Remove; no longer used. (letter): Now includes '-' and '.', since this is for Bison identifiers. (id): Now the simpler traditional defn, since letters now include '-' and '.'. (c_letter, c_id): New defns. (ref): Use c_id for unbracketed IDs. (<SC_RULE_ACTION>): Simplify, now that the distinction between Bison and unbracketed IDs are now in the regular expressions. (VARIANT_BAD_BRACKETING): Remove. (VARIANT_NOT_VISIBLE_FROM_MIDRULE): Renumber. (find_prefix_end): Remove, replacing with .... (identifier_matches): New function. (variant_add): Use it. Omit EXPLICIT_BRACKETING arg; no longer needed. CP arg is pointer to constant. All callers changed. (show_sub_messages): Remove args CP, EXPLICIT_BRACKETING, DOLLAR_OR_AT. New arg TEXT. All callers changed. Do not worry about showing trailing context. (parse_ref): Args CP, RULE, TEXT are now pointers to const. New arg TEXTLEN. Remove arg DOLLAR_OR_AT. All callers changed. Simplify code now that the regular expressions capture the restrictions. * src/scan-gram.l (letter, id): Adjust to match scan-code.l. * src/symlist.c (symbol_list_null): Arg is now pointer to const. * src/symlist.h: Likewise. * tests/named-refs.at (Misleading references): These are now caught by the C compiler, not by Bison; that's good enough. Adjust test to reflect this. (Many kinds of errors, Unresolved references): Adjust expected diagnostics to match new behavior. The same errors are caught, though the diagnostics are not quite as fancy. ($ or @ followed by . or -): Likewise. Also, Make the grammar unambiguous, so that diagnostics are not complicated by ambiguity warnings.
This package contains the GNU Bison parser generator.
* Installation
** Build
See the file INSTALL for generic compilation and installation
instructions.
Bison requires GNU m4 1.4.6 or later. See:
ftp://ftp.gnu.org/gnu/m4/m4-1.4.6.tar.gz
** Internationalization
Bison supports two catalogues: one for Bison itself (i.e., for the
maintainer-side parser generation), and one for the generated parsers
(i.e., for the user-side parser execution). The requirements between
both differ: bison needs ngettext, the generated parsers do not. To
simplify the build system, neither are installed if ngettext is not
supported, even if generated parsers could have been localized. See
http://lists.gnu.org/archive/html/bug-bison/2009-08/msg00006.html for
more details.
* Questions
See the section FAQ in the documentation (doc/bison.info) for
frequently asked questions. The documentation is also available in
PDF and HTML, provided you have a recent version of Texinfo installed:
run "make pdf" or "make html".
If you have questions about using Bison and the documentation does
not answer them, please send mail to <help-bison@gnu.org>.
* Bug reports
Please send bug reports to <bug-bison@gnu.org>. Please include the
version number from `bison --version', and a complete, self-contained
test case in each bug report.
* Copyright statements
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note that the range specifies every single year in that closed interval.
Local Variables:
mode: outline
End:
-----
Copyright (C) 1992, 1998-1999, 2003-2005, 2008-2011 Free Software
Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
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,
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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/>.