<?php

/*
 * Copyright (C) 2016 Nicolas Grekas - p@tchwork.com
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the (at your option):
 * Apache License v2.0 (http://apache.org/licenses/LICENSE-2.0.txt), or
 * GNU General Public License v2.0 (http://gnu.org/licenses/gpl-2.0.txt).
 */

use Patchwork\PHP\Shim as s;

const ICONV_IMPL = 'Patchwork';
const ICONV_VERSION = '1.0';
const ICONV_MIME_DECODE_STRICT = 1;
const ICONV_MIME_DECODE_CONTINUE_ON_ERROR = 2;

@trigger_error('You are using a fallback implementation of the iconv extension. Installing the native one is highly recommended instead.', E_USER_DEPRECATED);

function iconv($from, $to, $s) {return s\Iconv::iconv($from, $to, $s);}
function iconv_get_encoding($type = 'all') {return s\Iconv::iconv_get_encoding($type);}
function iconv_set_encoding($type, $charset) {return s\Iconv::iconv_set_encoding($type, $charset);}
function iconv_mime_encode($name, $value, $pref = null) {return s\Iconv::iconv_mime_encode($name, $value, $pref);}
function ob_iconv_handler($buffer, $mode) {return s\Iconv::ob_iconv_handler($buffer, $mode);}
function iconv_mime_decode_headers($encoded_headers, $mode = 0, $enc = null) {return s\Iconv::iconv_mime_decode_headers($encoded_headers, $mode, $enc);}

if (extension_loaded('mbstring'))
{
    function iconv_strlen($s, $enc = null)                               {null === $enc and $enc = s\Iconv::$internal_encoding; return mb_strlen($s, $enc);}
    function iconv_strpos($s, $needle, $offset = 0, $enc = null)         {null === $enc and $enc = s\Iconv::$internal_encoding; return mb_strpos($s, $needle, $offset, $enc);}
    function iconv_strrpos($s, $needle, $enc = null)                     {null === $enc and $enc = s\Iconv::$internal_encoding; return mb_strrpos($s, $needle, 0, $enc);}
    function iconv_substr($s, $start, $length = 2147483647, $enc = null) {null === $enc and $enc = s\Iconv::$internal_encoding; return mb_substr($s, $start, $length, $enc);}
    function iconv_mime_decode($encoded_headers, $mode = 0, $enc = null) {null === $enc and $enc = s\Iconv::$internal_encoding; return mb_decode_mimeheader($encoded_headers, $mode, $enc);}
}
else
{
    if (extension_loaded('xml'))
    {
        function iconv_strlen($s, $enc = null) {return s\Iconv::strlen1($s, $enc);}
    }
    else
    {
        function iconv_strlen($s, $enc = null) {return s\Iconv::strlen2($s, $enc);}
    }

    function iconv_strpos($s, $needle, $offset = 0, $enc = null)         {return s\Iconv::iconv_strpos($s, $needle, $offset, $enc);}
    function iconv_strrpos($s, $needle, $enc = null)                     {return s\Iconv::iconv_strrpos($s, $needle, $enc);}
    function iconv_substr($s, $start, $length = 2147483647, $enc = null) {return s\Iconv::iconv_substr($s, $start, $length, $enc);}
    function iconv_mime_decode($encoded_headers, $mode = 0, $enc = null) {return s\Iconv::iconv_mime_decode($encoded_headers, $mode, $enc);}
}