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Declared yyerrcnt to be static

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Added YY_USER_INIT macro to set the input buffer size to the config file
size (plus a bit). This is supposed to be a workaround for the REJECT
problem.
This commit is contained in:
Thomas Jensen 1999-08-18 18:23:41 +00:00
parent f6c4f01f4e
commit 0e8079c81c
1 changed files with 30 additions and 3 deletions
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33
src/lexer.l
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@ -4,7 +4,7 @@
* Date created: March 15, 1999 (Monday, 17:16h) * Date created: March 15, 1999 (Monday, 17:16h)
* Author: Copyright (C) 1999 Thomas Jensen * Author: Copyright (C) 1999 Thomas Jensen
* tsjensen@stud.informatik.uni-erlangen.de * tsjensen@stud.informatik.uni-erlangen.de
* Version: $Id: lexer.l,v 1.14 1999/08/16 16:28:03 tsjensen Exp tsjensen $ * Version: $Id: lexer.l,v 1.15 1999/08/18 15:40:10 tsjensen Exp tsjensen $
* Language: lex (ANSI C) * Language: lex (ANSI C)
* Purpose: flex lexical analyzer for boxes configuration files * Purpose: flex lexical analyzer for boxes configuration files
* *
@ -20,10 +20,17 @@
* License along with this program; if not, write to the Free * License along with this program; if not, write to the Free
* Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA * MA 02111-1307 USA
* - We don't use the yylineno %option. It is not only inefficient,
* but also doesn't work. :-| *doh*
* *
* Revision History: * Revision History:
* *
* $Log: lexer.l,v $ * $Log: lexer.l,v $
* Revision 1.15 1999/08/18 15:40:10 tsjensen
* Added %options never-interactive and caseless
* Added code for DELIMITER statements
* Rewrote string rules to deal with delimiter statements
*
* Revision 1.14 1999/08/16 16:28:03 tsjensen * Revision 1.14 1999/08/16 16:28:03 tsjensen
* Implemented new SAMPLE block syntax * Implemented new SAMPLE block syntax
* Replaced states SAMPLE1 and SAMPLE2 with new state SAMPLE - this is now * Replaced states SAMPLE1 and SAMPLE2 with new state SAMPLE - this is now
@ -80,6 +87,8 @@
#include "config.h" #include "config.h"
#include <string.h> #include <string.h>
#include <sys/stat.h>
#include <unistd.h>
#include "shape.h" #include "shape.h"
#define FILE_LEXER_L #define FILE_LEXER_L
#include "boxes.h" #include "boxes.h"
@ -94,15 +103,33 @@
static const char rcsid_lexer_l[] = static const char rcsid_lexer_l[] =
"$Id: lexer.l,v 1.14 1999/08/16 16:28:03 tsjensen Exp tsjensen $"; "$Id: lexer.l,v 1.15 1999/08/18 15:40:10 tsjensen Exp tsjensen $";
int yylineno = 1; int yylineno = 1;
int yyerrcnt = 0; static int yyerrcnt = 0;
static char sdel = '\"'; static char sdel = '\"';
static char sesc = '\\'; static char sesc = '\\';
/*
* Since this scanner must use REJECT in order to be able to process the
* string delimiter commands, it cannot dynamically enlarge its input
* buffer to accomodate larger tokens. Thus, we simply set the buffer size
* to the input file size plus 10 bytes margin-of-error.
*/
#define YY_USER_INIT { \
struct stat sinf; \
\
if (stat(yyfilename, &sinf)) { \
perror (PROJECT); \
exit (EXIT_FAILURE); \
} \
yy_delete_buffer (YY_CURRENT_BUFFER); \
YY_CURRENT_BUFFER = yy_create_buffer (yyin, sinf.st_size+10); \
}
%} %}
%option nounput %option nounput