collator_compare.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: Vadim Savchuk <vsavchuk@productengine.com>                  |
   |          Dmitry Lakhtyuk <dlakhtyuk@productengine.com>               |
   +----------------------------------------------------------------------+
 */
 
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
 
#include "php_intl.h"
#include "collator_class.h"
#include "intl_convert.h"
 
/* {{{ Compare two strings. */
PHP_FUNCTION( collator_compare )
{
    char*            str1      = NULL;
    char*            str2      = NULL;
    size_t              str1_len  = 0;
    size_t              str2_len  = 0;
 
    UChar*           ustr1     = NULL;
    UChar*           ustr2     = NULL;
    int              ustr1_len = 0;
    int              ustr2_len = 0;
 
    UCollationResult result;
 
    COLLATOR_METHOD_INIT_VARS
 
    /* Parse parameters. */
    if( zend_parse_method_parameters( ZEND_NUM_ARGS(), getThis(), "Oss",
        &object, Collator_ce_ptr, &str1, &str1_len, &str2, &str2_len ) == FAILURE )
    {
        RETURN_THROWS();
    }
 
    /* Fetch the object. */
    COLLATOR_METHOD_FETCH_OBJECT;
 
    if (!co || !co->ucoll) {
        intl_error_set_code( NULL, COLLATOR_ERROR_CODE( co ) );
        intl_errors_set_custom_msg( COLLATOR_ERROR_P( co ),
            "Object not initialized", 0 );
        zend_throw_error(NULL, "Object not initialized");
 
        RETURN_THROWS();
    }
 
    /*
     * Compare given strings (converting them to UTF-16 first).
     */
 
    /* First convert the strings to UTF-16. */
    intl_convert_utf8_to_utf16(
        &ustr1, &ustr1_len, str1, str1_len, COLLATOR_ERROR_CODE_P( co ) );
    if( U_FAILURE( COLLATOR_ERROR_CODE( co ) ) )
    {
        /* Set global error code. */
        intl_error_set_code( NULL, COLLATOR_ERROR_CODE( co ) );
 
        /* Set error messages. */
        intl_errors_set_custom_msg( COLLATOR_ERROR_P( co ),
            "Error converting first argument to UTF-16", 0 );
        if (ustr1) {
            efree( ustr1 );
        }
        RETURN_FALSE;
    }
 
    intl_convert_utf8_to_utf16(
        &ustr2, &ustr2_len, str2, str2_len, COLLATOR_ERROR_CODE_P( co ) );
    if( U_FAILURE( COLLATOR_ERROR_CODE( co ) ) )
    {
        /* Set global error code. */
        intl_error_set_code( NULL, COLLATOR_ERROR_CODE( co ) );
 
        /* Set error messages. */
        intl_errors_set_custom_msg( COLLATOR_ERROR_P( co ),
            "Error converting second argument to UTF-16", 0 );
        if (ustr1) {
            efree( ustr1 );
        }
        if (ustr2) {
            efree( ustr2 );
        }
        RETURN_FALSE;
    }
 
    /* Then compare them. */
    result = ucol_strcoll(
        co->ucoll,
        ustr1, ustr1_len,
        ustr2, ustr2_len );
 
    if( ustr1 )
        efree( ustr1 );
    if( ustr2 )
        efree( ustr2 );
 
    /* Return result of the comparison. */
    RETURN_LONG( result );
}
/* }}} */