]> git.saurik.com Git - bison.git/blame_incremental - src/scan-action.l
Do not let the scan-skel token buffer grow unboundedly in the usual case.
[bison.git] / src / scan-action.l
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1/* Scan User Actions. -*- C -*-
2 Copyright (C) 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="action_" outfile="lex.yy.c"
23
24%{
25#include "system.h"
26#include "files.h"
27int skel_lex (void);
28static int yylineno = 1;
29%}
30
31%x DOLLAR
32
33ID [a-zA-Z]+
34NUM -?[0-9]+
35
36%%
37$(-?[0-9])+ { fprintf (action_out, "yylsp[%s]", yytext + 1) ;}
38@(-?[0-9])+ { fprintf (action_out, "yylsp[%s]", yytext + 1) ;}
39$<{ID} { action_type = xstrndup (yytext + 2, yyleng - 2); BEGIN DOLLAR;}
40$ { BEGIN DOLLAR;}
41
42<DOLLAR>
43{
44 {NUM}> { fprintf (action_out, "yyvsp[%s]", NUM }
45}
46%%