transliterator_class.c

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/*
   +----------------------------------------------------------------------+
   | This source file is subject to version 3.01 of the PHP license,      |
   | that is bundled with this package in the file LICENSE, and is        |
   | available through the world-wide-web at the following url:           |
   | https://www.php.net/license/3_01.txt                                 |
   | If you did not receive a copy of the PHP license and are unable to   |
   | obtain it through the world-wide-web, please send a note to          |
   | license@php.net so we can mail you a copy immediately.               |
   +----------------------------------------------------------------------+
   | Authors: Gustavo Lopes <cataphract@php.net>                          |
   +----------------------------------------------------------------------+
 */
 
#include "transliterator_class.h"
#include "php_intl.h"
#include "transliterator_arginfo.h"
#include "intl_error.h"
#include "intl_convert.h"
#include "intl_data.h"
 
#include <unicode/utrans.h>
 
zend_class_entry *Transliterator_ce_ptr = NULL;
 
zend_object_handlers Transliterator_handlers;
 
/* {{{ int transliterator_object_construct( zval *object, UTransliterator *utrans, UErrorCode *status )
 * Initialize internals of Transliterator_object.
 */
int transliterator_object_construct( zval *object,
                                     UTransliterator *utrans,
                                     UErrorCode *status )
{
    const UChar           *ustr_id;
    int32_t               ustr_id_len;
    zend_string           *u8str;
    zval                  tmp;
    Transliterator_object *to;
 
    TRANSLITERATOR_METHOD_FETCH_OBJECT_NO_CHECK;
 
    assert( to->utrans == NULL );
    /* this assignment must happen before any return with failure because the
     * caller relies on it always being made (so it can just destroy the object
     * to close the transliterator) */
    to->utrans = utrans;
 
    ustr_id = utrans_getUnicodeID( utrans, &ustr_id_len );
    u8str = intl_convert_utf16_to_utf8(ustr_id, (int ) ustr_id_len, status );
    if( !u8str )
    {
        return FAILURE;
    }
 
    ZVAL_NEW_STR(&tmp, u8str);
    zend_update_property(Transliterator_ce_ptr, Z_OBJ_P(object),
        "id", sizeof( "id" ) - 1, &tmp );
    GC_DELREF(u8str);
    return SUCCESS;
}
/* }}} */
 
/*
 * Auxiliary functions needed by objects of 'Transliterator' class
 */
 
/* {{{ void transliterator_object_init( Transliterator_object* to )
 * Initialize internals of Transliterator_object.
 */
static void transliterator_object_init( Transliterator_object* to )
{
    if( !to )
        return;
 
    intl_error_init( TRANSLITERATOR_ERROR_P( to ) );
}
/* }}} */
 
/* {{{ void transliterator_object_destroy( Transliterator_object* to )
 * Clean up mem allocted by internals of Transliterator_object
 */
static void transliterator_object_destroy( Transliterator_object* to )
{
    if( !to )
        return;
 
    if( to->utrans )
    {
        utrans_close( to->utrans );
        to->utrans = NULL;
    }
 
    intl_error_reset( TRANSLITERATOR_ERROR_P( to ) );
}
/* }}} */
 
/* {{{ Transliterator_objects_free */
static void Transliterator_objects_free( zend_object *object )
{
    Transliterator_object* to = php_intl_transliterator_fetch_object(object);
 
    zend_object_std_dtor( &to->zo );
 
    transliterator_object_destroy( to );
}
/* }}} */
 
/* {{{ Transliterator_object_create */
static zend_object *Transliterator_object_create( zend_class_entry *ce )
{
    Transliterator_object* intern;
 
    intern = zend_object_alloc(sizeof(Transliterator_object), ce);
 
    zend_object_std_init( &intern->zo, ce );
    object_properties_init( &intern->zo, ce );
    transliterator_object_init( intern );
 
    return &intern->zo;
}
/* }}} */
 
/*
 * Object handlers for Transliterator class (and subclasses)
 */
 
/* {{{ clone handler for Transliterator */
static zend_object *Transliterator_clone_obj( zend_object *object )
{
    Transliterator_object *to_orig = php_intl_transliterator_fetch_object(object);
    zend_object           *ret_val = Transliterator_ce_ptr->create_object(object->ce);
    Transliterator_object  *to_new = php_intl_transliterator_fetch_object(ret_val);
 
    zend_objects_clone_members( &to_new->zo, &to_orig->zo );
    if (to_orig->utrans != NULL) {
        /* guaranteed to return NULL if it fails */
        UErrorCode error = U_ZERO_ERROR;
        UTransliterator *utrans = utrans_clone( to_orig->utrans, &error);
 
        if (U_FAILURE(error)) {
            if (utrans != NULL) {
                transliterator_object_destroy(to_new);
            }
            zend_throw_error(NULL, "Failed to clone Transliterator");
        } else {
            to_new->utrans = utrans;
        }
    } else {
        /* We shouldn't have unconstructed objects in the first place */
        zend_throw_error(NULL, "Cannot clone uninitialized Transliterator");
    }
 
    return ret_val;
}
/* }}} */
 
/* {{{ transliterator_register_Transliterator_class
 * Initialize 'Transliterator' class
 */
void transliterator_register_Transliterator_class( void )
{
    /* Create and register 'Transliterator' class. */
    Transliterator_ce_ptr = register_class_Transliterator();
    Transliterator_ce_ptr->create_object = Transliterator_object_create;
    Transliterator_ce_ptr->default_object_handlers = &Transliterator_handlers;
    memcpy( &Transliterator_handlers, &std_object_handlers, sizeof Transliterator_handlers );
    Transliterator_handlers.offset = XtOffsetOf(Transliterator_object, zo);
    Transliterator_handlers.free_obj = Transliterator_objects_free;
    Transliterator_handlers.clone_obj = Transliterator_clone_obj;
}
/* }}} */