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1 | /* Scan Bison Skeletons. -*- C -*- | |
2 | Copyright (C) 2001, 2002 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of Bison, the GNU Compiler Compiler. | |
5 | ||
6 | Bison is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | Bison is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with Bison; see the file COPYING. If not, write to the Free | |
18 | Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
19 | 02111-1307, USA. */ | |
20 | ||
21 | %option nodefault noyywrap nounput | |
22 | %option prefix="skel_" outfile="lex.yy.c" | |
23 | ||
24 | %{ | |
25 | #include "system.h" | |
26 | #include "files.h" | |
27 | int skel_lex PARAMS ((void)); | |
28 | static int yylineno = 1; | |
29 | static char *yyoutname = NULL; | |
30 | %} | |
31 | %% | |
32 | /* This is an approximation, but we don't need more. */ | |
33 | ^"#output \""[^\"]+\"\n { | |
34 | yytext[yyleng - 2] = '\0'; | |
35 | XFREE (yyoutname); | |
36 | yyoutname = xstrdup (yytext + strlen ("#output \"")); | |
37 | yyout = xfopen (yyoutname, "w"); | |
38 | yylineno = 1; | |
39 | } | |
40 | ||
41 | "__oline__" fprintf (yyout, "%d", yylineno); | |
42 | "__ofile__" fprintf (yyout, "%s", yyoutname); | |
43 | [^_\n]+ ECHO; | |
44 | \n+ yylineno += yyleng; ECHO; | |
45 | . ECHO; | |
46 | ||
47 | %% |