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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: field.c,v 1.1.2.2 2003/09/02 14:35:33 fredgo Exp $
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include "bibtex.h"
static GMemChunk * field_chunk = NULL;
BibtexField *
bibtex_field_new (BibtexFieldType type) {
BibtexField * field;
if (field_chunk == NULL) {
field_chunk = g_mem_chunk_new ("BibtexField",
sizeof (BibtexField),
sizeof (BibtexField) * 16,
G_ALLOC_AND_FREE);
}
field = g_chunk_new (BibtexField, field_chunk);
field->structure = NULL;
field->type = type;
field->text = NULL;
field->converted = FALSE;
field->loss = FALSE;
switch (field->type) {
case BIBTEX_AUTHOR:
/* Empty list */
field->field.author = NULL;
break;
case BIBTEX_DATE:
field->field.date.year = 0;
field->field.date.month = 0;
field->field.date.day = 0;
break;
case BIBTEX_OTHER:
case BIBTEX_TITLE:
case BIBTEX_VERBATIM:
break;
default:
g_warning ("unknown field type `%d'", field->type);
bibtex_field_destroy (field, TRUE);
return NULL;
}
return field;
}
void
bibtex_field_destroy (BibtexField * field,
gboolean value) {
g_return_if_fail (field != NULL);
if (value && field->structure) {
bibtex_struct_destroy (field->structure, TRUE);
}
if (field->text) {
g_free (field->text);
}
switch (field->type) {
case BIBTEX_AUTHOR:
if (field->field.author) {
bibtex_author_group_destroy (field->field.author);
}
break;
default:
break;
}
g_chunk_free (field, field_chunk);
}
BibtexField *
bibtex_struct_as_field (BibtexStruct * s,
BibtexFieldType type) {
BibtexField * field;
g_return_val_if_fail (s != NULL, NULL);
field = bibtex_field_new (type);
field->structure = s;
return field;
}
BibtexField *
bibtex_field_parse (BibtexField * field,
GHashTable * dico) {
g_return_val_if_fail (field != NULL, NULL);
if (field->converted) {
/* Convert just once */
return field;
}
field->converted = TRUE;
field->text = bibtex_struct_as_string (field->structure,
field->type, dico,
& field->loss);
switch (field->type) {
case BIBTEX_AUTHOR:
field->field.author = bibtex_author_parse (field->structure, dico);
break;
case BIBTEX_DATE:
field->field.date.year = atoi (field->text);
field->field.date.month = 0;
field->field.date.day = 0;
break;
default:
break;
}
return field;
}
BibtexField *
bibtex_string_as_field (gchar * string,
BibtexFieldType type) {
BibtexField * field = NULL;
g_return_val_if_fail (string != NULL, NULL);
field = bibtex_field_new (BIBTEX_OTHER);
field->converted = TRUE;
field->text = g_strdup (string);
switch (type) {
case BIBTEX_AUTHOR:
case BIBTEX_DATE:
case BIBTEX_TITLE:
case BIBTEX_OTHER:
case BIBTEX_VERBATIM:
break;
default:
bibtex_field_destroy (field, TRUE);
g_warning ("unknown type `%d' for string `%s'",
type, string);
return NULL;
}
return field;
}
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