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/*
* append_easy.c
*
* Most output formats have identical requirements for outputting
* easy tag/value pairs, so centralize code.
*
* append_easy() - output first match
* append_easyall() - output all matches as separate tag/value pairs
* append_easycombo() - output all matches as a single tag/value pair, where
* values are separated by the sep string
*
* Copyright (c) Chris Putnam 2020-2021
*
* Source code released under the GPL version 2
*/
#include <stdio.h>
#include <stdlib.h>
#include "append_easy.h"
#include "bibdefs.h"
#include "utf8.h"
#include "vplist.h"
void
append_easy( fields *in, const char *intag, int inlevel, fields *out, const char *outtag, int *status )
{
char *value;
int fstatus;
value = fields_findv( in, inlevel, FIELDS_CHRP, intag );
if ( value ) {
fstatus = fields_add( out, outtag, value, LEVEL_MAIN );
if ( fstatus!=FIELDS_OK ) *status = BIBL_ERR_MEMERR;
}
}
static void
unique_entries_only( vplist *a )
{
vplist_index i, j;
int match;
str *curr;
i = 0;
while ( i < a->n ) {
curr = ( str * ) vplist_get( a, i );
match = 0;
for ( j=0; j<i; ++j ) {
if ( !str_strcmp( curr, (str*) vplist_get( a, j ) ) ) {
match = 1;
break;
}
}
if ( match ) vplist_remove( a, i );
else i++;
}
}
void
append_easyall( fields *in, const char *intag, int inlevel, fields *out, const char *outtag, int *status )
{
vplist_index i;
int fstatus;
str *value;
vplist a;
vplist_init( &a );
fields_findv_each( in, inlevel, FIELDS_STRP, &a, intag );
unique_entries_only( &a );
for ( i=0; i<a.n; ++i ) {
value = ( str * ) vplist_get( &a, i );
fstatus = fields_add( out, outtag, str_cstr( value ), LEVEL_MAIN );
if ( fstatus!=FIELDS_OK ) {
*status = BIBL_ERR_MEMERR;
goto out;
}
}
out:
vplist_free( &a );
}
void
append_easyallpre( fields *in, const char *intag, int inlevel, fields *out, const char *outtag, const char *prefix, int *status )
{
vplist_index i;
int fstatus;
str value;
vplist a;
str_init( &value );
vplist_init( &a );
fields_findv_each( in, inlevel, FIELDS_STRP, &a, intag );
unique_entries_only( &a );
for ( i=0; i<a.n; ++i ) {
str_strcpyc( &value, prefix );
str_strcat( &value, ( str * ) vplist_get( &a, i ) );
fstatus = fields_add( out, outtag, str_cstr( &value ), LEVEL_MAIN );
if ( fstatus!=FIELDS_OK ) {
*status = BIBL_ERR_MEMERR;
goto out;
}
}
out:
str_free( &value );
vplist_free( &a );
}
void
append_easycombo( fields *in, const char *intag, int inlevel, fields *out, const char *outtag, const char *sep, int *status )
{
vplist_index i;
int fstatus;
str value;
vplist a;
str_init( &value );
vplist_init( &a );
fields_findv_each( in, inlevel, FIELDS_STRP, &a, intag );
unique_entries_only( &a );
for ( i=0; i<a.n; ++i ) {
if ( i>0 ) str_strcatc( &value, sep );
str_strcat( &value, (str *) vplist_get( &a, i ) );
}
if ( str_memerr( &value ) ) {
*status = BIBL_ERR_MEMERR;
goto out;
}
fstatus = fields_add( out, outtag, str_cstr( &value ), LEVEL_MAIN );
if ( fstatus!=FIELDS_OK ) *status = BIBL_ERR_MEMERR;
out:
str_free( &value );
vplist_free( &a );
}
/* output page value while converting em-dash and en-dash to a simple dash */
int
append_easypage( fields *out, const char *outtag, const char *value, int level )
{
int fstatus, status = BIBL_OK;
const char *p;
str use;
str_init( &use );
p = value;
while ( *p ) {
/* -30 is the first character of a UTF8 em-dash and en-dash */
if ( *p==-30 && ( utf8_is_emdash( p ) || utf8_is_endash( p ) ) ) {
str_addchar( &use, '-' );
p+=3;
} else {
str_addchar( &use, *p );
p+=1;
}
}
fstatus = fields_add( out, outtag, str_cstr( &use ), level );
if ( fstatus!=FIELDS_OK ) status = BIBL_ERR_MEMERR;
str_free( &use );
return status;
}
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