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* src/reader.c, src/reader.h (prologue_augment): New. * src/reader.c (copy_definition): Remove. * src/reader.h, src/reader.c (gram_start_symbol_set, prologue_augment) (grammar_symbol_append, grammar_rule_begin, grammar_midrule_action) (grammar_current_rule_prec_set, grammar_current_rule_check) (grammar_current_rule_symbol_append) (grammar_current_rule_action_append): Export. * src/parse-gram.y (symbol_list_new, symbol_list_symbol_append_ (symbol_list_action_append): Remove. Hook the routines from reader. * src/scan-gram.l: In INITIAL, characters and strings are tokens. * src/system.h (ATTRIBUTE_NORETURN, ATTRIBUTE_UNUSED): Now. * src/reader.c (read_declarations): Remove, unused. * src/parse-gram.y: Handle the epilogue. * src/reader.h, src/reader.c (gram_start_symbol_set): Rename as... (grammar_start_symbol_set): this. * src/scan-gram.l: Be sure to ``use'' yycontrol to keep GCC quiet. * src/reader.c (readgram): Remove, unused. (reader): Adjust to insert eoftoken and axiom where appropriate. * src/reader.c (copy_dollar): Replace with... * src/scan-gram.h (handle_dollar): this. * src/parse-gram.y: Remove `%thong'. * src/reader.c (copy_at): Replace with... * src/scan-gram.h (handle_at): this. * src/complain.h, src/complain.c (warn_at, complain_at, fatal_at): New. * src/scan-gram.l (YY_LINES): Keep lineno synchronized for the time being. * src/reader.h, src/reader.c (grammar_rule_end): New. * src/parse.y (current_type, current_class): New. Implement `%nterm', `%token' support. Merge `%term' into `%token'. (string_as_id): New. * src/symtab.h, src/symtab.c (symbol_make_alias): Don't pass the type name. * src/parse-gram.y: Be sure to handle properly the beginning of rules. * src/parse-gram.y: Handle %type. * src/reader.c (grammar_rule_end): Call grammar_current_rule_check. * src/parse-gram.y: More directives support. * src/options.c: No longer handle source directives. * src/parse-gram.y: Fix %output. * src/parse-gram.y: Handle %union. Use the prologue locations. * src/reader.c (parse_union_decl): Remove. * src/reader.h, src/reader.c (epilogue_set): New. * src/parse-gram.y: Use it. * data/bison.simple, data/bison.c++: b4_stype is now either not defined, then default to int, or to the contents of %union, without `union' itself. Adjust. * src/muscle_tab.c (muscle_init): Don't predefine `stype'. * src/output.c (actions_output): Don't output braces, as they are already handled by the scanner. * src/scan-gram.l (SC_CHARACTER): Set the user_token_number of characters to themselves. * tests/reduce.at (Reduced Automaton): End the grammars with %% so that the epilogue has a proper #line. * src/parse-gram.y: Handle precedence/associativity. * src/symtab.c (symbol_precedence_set): Requires the symbol to be a terminal. * src/scan-gram.l (SC_BRACED_CODE): Catch strings and characters. * tests/calc.at: Do not use `%token "foo"' as it makes not sense at all to define terminals that cannot be emitted. * src/scan-gram.l: Escape M4 characters. * src/scan-gram.l: Working properly with escapes in user strings/characters. * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR) (AT_DATA_HORIZONTAL_GRAMMAR): Respect the `%token ID NUM STRING' grammar. Use more modest sizes, as for the time being the parser does not release memory, and therefore the process swallows a huge amount of memory. * tests/torture.at (AT_DATA_LOOKAHEADS_GRAMMAR): Adjust to the stricter %token grammar. * src/symtab.h (associativity): Add `undef_assoc'. (symbol_precedence_set): Do nothing when passed an undef_assoc. * src/symtab.c (symbol_check_alias_consistence): Adjust. * tests/regression.at (Invalid %directive): Remove, as it is now meaningless. (Invalid inputs): Adjust to the new error messages. (Token definitions): The new grammar doesn't allow too many eccentricities. * src/lex.h, src/lex.c: Remove. * src/reader.c (lastprec, skip_to_char, read_signed_integer) (copy_character, copy_string2, copy_string, copy_identifier) (copy_comment, parse_token_decl, parse_type_decl, parse_assoc_decl) (parse_muscle_decl, parse_dquoted_param, parse_skel_decl) (parse_action): Remove. * po/POTFILES.in: Adjust.
47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/* Scan User Actions. -*- C -*-
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Copyright (C) 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 it
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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, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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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 the Free
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Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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%option nodefault noyywrap nounput
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%option prefix="action_" outfile="lex.yy.c"
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%{
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#include "system.h"
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#include "files.h"
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int skel_lex PARAMS ((void));
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static int yylineno = 1;
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%}
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%x DOLLAR
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ID [a-zA-Z]+
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NUM -?[0-9]+
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%%
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$(-?[0-9])+ { fprintf (action_out, "yylsp[%s]", yytext + 1) ;}
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@(-?[0-9])+ { fprintf (action_out, "yylsp[%s]", yytext + 1) ;}
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$<{ID} { action_type = xstrndup (yytext + 2, yyleng - 2); BEGIN DOLLAR;}
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$ { BEGIN DOLLAR;}
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<DOLLAR>
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{
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{NUM}> { fprintf (action_out, "yyvsp[%s]", NUM }
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}
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%%
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