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|
%{ /* -*- c -*- */
/*
* Grammar for parsing the style sheets
*
* Copyright (c) 1988-1993 Miguel Santana
* Copyright (c) 1995-1999 Akim Demaille, Miguel Santana
*
*/
/*
* This file is part of a2ps
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* $Id: parseppd.y,v 1.1.1.1.2.1 2007/12/29 01:58:21 mhatta Exp $
*/
#include "a2ps.h"
/* We need to use the same `const' as bison, to avoid the following
prototypes to diverge from the function declarations */
#undef const
#ifndef __cplusplus
# ifndef __STDC__
# define const
# endif
#endif
#include "jobs.h"
#include "ppd.h"
#include "message.h"
#include "routines.h"
#include "lexppd.h"
#define YYDEBUG 1
#define YYERROR_VERBOSE 1
#define YYPRINT(file, type, value) yyprint (file, type, value)
/* Comes from the caller */
extern FILE * ppdin;
extern struct a2ps_job * job;
/* Local prototypes */
void yyerror PARAMS ((const char *msg));
static void yyprint ();
/* Initilizes the obstacks */
void ppdlex_initialize PARAMS ((void));
int yylex PARAMS ((void));
static struct ppd * ppd_parse_result;
%}
%union
{
char * string;
uchar * ustring;
struct ppd * ppd;
}
%token EOL
%token tDefaultFont tFont tModelName tNickName
%token <string> STRING SYMBOL
%token <ustring> USTRING
%type <ppd> ppd
%type <string> font_clause
%%
/************************************************************************/
/* Top most */
/************************************************************************/
file :
ppd
{
ppd_parse_result = $1;
/* Nothing Right Now */;
}
;
ppd :
/* Empty */
{
$$ = ppd_new ();
}
| ppd font_clause EOL
{
ppd_font_add ($1, $2);
$$ = $1;
}
| ppd tModelName ':' STRING EOL
{
if (!$1->modelname)
$1->modelname = $4;
$$ = $1;
}
| ppd tNickName ':' STRING EOL
{
if (!$1->nickname)
$1->nickname = $4;
$$ = $1;
}
| ppd SYMBOL
{
$$ = $1;
}
| ppd STRING
{
$$ = $1;
}
| ppd USTRING
{
$$ = $1;
}
| ppd ':'
{
$$ = $1;
}
| ppd EOL
{
$$ = $1;
}
;
/************************************************************************/
/* *Font entry */
/************************************************************************/
font_clause :
tFont SYMBOL ':' SYMBOL STRING SYMBOL SYMBOL
{ $$= $2; }
| tDefaultFont ':' SYMBOL
{ $$= $3; }
;
%%
void
yyerror (const char *msg)
{
error_at_line (1, 0, ppdfilename, ppdlineno, msg);
}
/*
* For debugging
*/
static void
yyprint (FILE *file, int type, YYSTYPE value)
{
switch (type) {
case STRING:
fprintf (file, " \"%s\"", value.string);
break;
case SYMBOL:
fprintf (file, " %s", value.string);
break;
case USTRING:
fprintf (file, " u\"%s\"", value.ustring);
break;
}
}
struct ppd *
a2ps_ppd_parse (const char * filename, char * const * path)
{
/* The filename won't be changed. */
ppdfilename = (char *) filename;
ppdlineno = 1;
ppdin = xrfopen (ppdfilename);
ppdpath = path;
message (msg_file | msg_ppd | msg_parse,
(stderr, "Parsing file `%s'\n", ppdfilename));
ppdlex_initialize ();
if (msg_test (msg_parse))
yydebug = true;
else
yydebug = false;
yyparse (); /* FIXME: test return value? */
fclose (ppdin);
return ppd_parse_result;
}
|
