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%{
/*
This file is part of pybliographer
Copyright (C) 1998-1999 Frederic GOBRY
Email : gobry@idiap.ch
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 2
of the License, 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; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
$Id: biblex.l,v 1.1.2.2 2003/09/02 14:35:33 fredgo Exp $
*/
/* #include "parsername.h" */
#include <string.h>
#include "bibtex.h"
#include "bibparse.h"
static BibtexSource * current_source;
gboolean bibtex_parser_is_content;
extern void bibtex_next_line (void);
#define YY_USER_ACTION current_source->offset += bibtex_parser_leng;
%}
DIGIT [0-9]+
NAME [^ \\\t{}\"@,=%#\n\r~]+
BODY [^{}\\\" \n\t\r~]+
%option noyywrap
%x comment entry
%%
if (YY_START == INITIAL) { BEGIN(comment); }
<comment>^[ \t]*@ BEGIN(entry); return ('@'); /* Match begin of entry */
<comment>\n bibtex_next_line (); /* Increment line number */
<comment>.
<comment,entry><<EOF>> {
/* Indicate EOF */
return (end_of_file);
}
<entry>\\([a-zA-Z]+|[^a-zA-Z]) {
/* Gestion du caractere \ */
bibtex_parser_lval.text = g_strdup (bibtex_parser_text);
bibtex_tmp_string (bibtex_parser_lval.text);
return (L_COMMAND);
}
<entry>{BODY} {
if (bibtex_parser_is_content) {
/* Word in the text */
bibtex_parser_lval.text = bibtex_tmp_string (g_strdup (bibtex_parser_text));
return L_BODY;
}
/* Don't parse it if we are not inside a text field */
current_source->offset -= bibtex_parser_leng;
REJECT;
}
<entry>[ \t\n\r~]+ {
/* Spaces handling */
char * tmp = bibtex_parser_text;
while (* tmp) {
if (* tmp == '\n') bibtex_next_line ();
tmp ++;
}
if (bibtex_parser_is_content) {
/* Is it an unbreakable space ? */
if (strcmp (bibtex_parser_text, "~") == 0) {
return L_UBSPACE;
}
return L_SPACE;
}
}
<entry>{DIGIT} {
/* Lecture d'un nombre */
bibtex_parser_lval.text = g_strdup (bibtex_parser_text);
bibtex_tmp_string (bibtex_parser_lval.text);
return (L_DIGIT);
}
<entry>{NAME} {
/* Lecture d'un nom simple */
bibtex_parser_lval.text = g_strdup (bibtex_parser_text);
bibtex_tmp_string (bibtex_parser_lval.text);
return (L_NAME);
}
<entry>. {
return bibtex_parser_text [0];
}
%%
/* Start the parser on the specified source */
void bibtex_parser_initialize (BibtexSource * source) {
g_return_if_fail (source != NULL);
/* Destroy old buffer */
if (source->buffer) {
bibtex_parser__delete_buffer ((YY_BUFFER_STATE) source->buffer);
}
switch (source->type) {
case BIBTEX_SOURCE_FILE:
source->buffer = (gpointer)
bibtex_parser__create_buffer (source->source.file, 1024);
break;
case BIBTEX_SOURCE_STRING:
source->buffer = (gpointer)
bibtex_parser__scan_string (source->source.string);
break;
default:
g_warning ("scanning nothing !");
source->buffer = NULL;
}
}
/* Continue parsing on the next entry */
void bibtex_parser_continue (BibtexSource * source) {
g_return_if_fail (source != NULL);
current_source = source;
bibtex_parser__switch_to_buffer ((YY_BUFFER_STATE) source->buffer);
BEGIN (INITIAL);
}
/* Parsing is over */
void bibtex_parser_finish (BibtexSource * source) {
g_return_if_fail (source != NULL);
if (source->buffer) {
bibtex_parser__delete_buffer ((YY_BUFFER_STATE) source->buffer);
source->buffer = NULL;
}
}
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