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2b7ed18a60
* src/reader.c (copy_character): New function, used to output single characters while replacing `[' and `]' with quadrigraphs, to avoid troubles with M4 quotes. (copy_comment): Output characters with copy_character. (read_additionnal_code): Likewise. (copy_string2): Likewise. (copy_definition): Likewise. * tests/calc.at: Exercise M4 quoting.
51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
/* Scan Bison Skeletons. -*- C -*-
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Copyright (C) 2001, 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="skel_" 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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static char *yyoutname = NULL;
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%}
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%%
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/* This is an approximation, but we don't need more. */
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^"#output \""[^\"]+\"\n {
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yytext[yyleng - 2] = '\0';
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XFREE (yyoutname);
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yyoutname = xstrdup (yytext + strlen ("#output \""));
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yyout = xfopen (yyoutname, "w");
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yylineno = 1;
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}
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"@<:@" fputc ('[', yyout);
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"@:>@" fputc (']', yyout);
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"__oline__" fprintf (yyout, "%d", yylineno);
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"__ofile__" fprintf (yyout, "%s", yyoutname);
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[^@_\n]+ ECHO;
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\n+ yylineno += yyleng; ECHO;
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. ECHO;
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%%
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