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/*
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* bibl.c
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*
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* Copyright (c) Chris Putnam 2005-2018
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*
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* Source code released under the GPL version 2
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "bibl.h"
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void
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bibl_init( bibl *b )
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{
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b->nrefs = b->maxrefs = 0L;
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b->ref = NULL;
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}
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static int
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bibl_malloc( bibl * b )
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{
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int alloc = 50;
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b->nrefs = 0;
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b->ref = ( fields ** ) malloc( sizeof( fields* ) * alloc );
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if ( b->ref ) {
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b->maxrefs = alloc;
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return 1;
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} else {
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fprintf( stderr, "%s: allocation error\n", __FUNCTION__ );
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return 0;
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}
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}
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static int
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bibl_realloc( bibl * b )
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{
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int alloc = b->maxrefs * 2;
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fields **more;
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more = ( fields ** ) realloc( b->ref, sizeof( fields* ) * alloc );
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if ( more ) {
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b->ref = more;
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b->maxrefs = alloc;
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return 1;
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} else {
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fprintf( stderr, "%s: allocation error\n", __FUNCTION__ );
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return 0;
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}
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}
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int
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bibl_addref( bibl *b, fields *ref )
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{
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int ok = 1;
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if ( b->maxrefs==0 ) ok = bibl_malloc( b );
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else if ( b->nrefs >= b->maxrefs ) ok = bibl_realloc( b );
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if ( ok ) {
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b->ref[ b->nrefs ] = ref;
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b->nrefs++;
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}
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return ok;
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}
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void
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bibl_free( bibl *b )
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{
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long i;
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for ( i=0; i<b->nrefs; ++i )
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fields_delete( b->ref[i] );
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if ( b->ref ) free( b->ref );
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b->ref = NULL;
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b->nrefs = b->maxrefs = 0;
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}
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/* bibl_copy()
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*
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* returns 1 on success, 0 on failure (memory error)
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*/
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int
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bibl_copy( bibl *bout, bibl *bin )
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{
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fields *refin, *refout;
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int i, j, n, status, ok, level;
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char *tag, *value;
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for ( i=0; i<bin->nrefs; ++i ) {
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refin = bin->ref[i];
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refout = fields_new();
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if ( !refout ) return 0;
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n = fields_num( refin );
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for ( j=0; j
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tag = fields_tag( refin, j, FIELDS_CHRP );
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value = fields_value( refin, j, FIELDS_CHRP );
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level = fields_level( refin, j );
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if ( tag && value ) {
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status = fields_add_can_dup( refout, tag, value, level );
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if ( status!=FIELDS_OK ) return 0;
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}
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}
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ok = bibl_addref( bout, refout );
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if ( !ok ) return 0;
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}
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return 1;
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}
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