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/*
* bibl.c
*
* Copyright (c) Chris Putnam 2005-2019
*
* Source code released under the GPL version 2
*
*/
#include <stdio.h>
#include <stdlib.h>
#include "bibl.h"
void
bibl_init( bibl *b )
{
b->nrefs = b->maxrefs = 0L;
b->ref = NULL;
}
static int
bibl_malloc( bibl * b )
{
int alloc = 50;
b->nrefs = 0;
b->ref = ( fields ** ) malloc( sizeof( fields* ) * alloc );
if ( b->ref ) {
b->maxrefs = alloc;
return 1;
} else {
fprintf( stderr, "%s: allocation error\n", __FUNCTION__ );
return 0;
}
}
static int
bibl_realloc( bibl * b )
{
int alloc = b->maxrefs * 2;
fields **more;
more = ( fields ** ) realloc( b->ref, sizeof( fields* ) * alloc );
if ( more ) {
b->ref = more;
b->maxrefs = alloc;
return 1;
} else {
fprintf( stderr, "%s: allocation error\n", __FUNCTION__ );
return 0;
}
}
int
bibl_addref( bibl *b, fields *ref )
{
int ok = 1;
if ( b->maxrefs==0 ) ok = bibl_malloc( b );
else if ( b->nrefs >= b->maxrefs ) ok = bibl_realloc( b );
if ( ok ) {
b->ref[ b->nrefs ] = ref;
b->nrefs++;
}
return ok;
}
void
bibl_free( bibl *b )
{
long i;
for ( i=0; i<b->nrefs; ++i )
fields_delete( b->ref[i] );
if ( b->ref ) free( b->ref );
b->ref = NULL;
b->nrefs = b->maxrefs = 0;
}
/* bibl_copy()
*
* returns 1 on success, 0 on failure (memory error)
*/
int
bibl_copy( bibl *bout, bibl *bin )
{
fields *refin, *refout;
int i, j, n, status, ok, level;
char *tag, *value;
for ( i=0; i<bin->nrefs; ++i ) {
refin = bin->ref[i];
refout = fields_new();
if ( !refout ) return 0;
n = fields_num( refin );
for ( j=0; j<n; ++j ) {
tag = fields_tag( refin, j, FIELDS_CHRP );
value = fields_value( refin, j, FIELDS_CHRP );
level = fields_level( refin, j );
if ( tag && value ) {
status = fields_add_can_dup( refout, tag, value, level );
if ( status!=FIELDS_OK ) return 0;
}
}
ok = bibl_addref( bout, refout );
if ( !ok ) return 0;
}
return 1;
}
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