root/ext/mbstring/mbstring.c

/* [<][>][^][v][top][bottom][index][help] */

DEFINITIONS

This source file includes following definitions.
  1. ZEND_DECLARE_MODULE_GLOBALS
  2. ZEND_GET_MODULE
  3. get_input_encoding
  4. get_output_encoding
  5. _php_mb_allocators_malloc
  6. _php_mb_allocators_realloc
  7. _php_mb_allocators_calloc
  8. _php_mb_allocators_free
  9. _php_mb_allocators_pmalloc
  10. _php_mb_allocators_prealloc
  11. _php_mb_allocators_pfree
  12. php_mb_parse_encoding_list
  13. php_mb_parse_encoding_array
  14. php_mb_zend_encoding_fetcher
  15. php_mb_zend_encoding_name_getter
  16. php_mb_zend_encoding_lexer_compatibility_checker
  17. php_mb_zend_encoding_detector
  18. php_mb_zend_encoding_converter
  19. php_mb_zend_encoding_list_parser
  20. php_mb_zend_internal_encoding_getter
  21. php_mb_zend_internal_encoding_setter
  22. _php_mb_compile_regex
  23. _php_mb_match_regex
  24. _php_mb_free_regex
  25. _php_mb_compile_regex
  26. _php_mb_match_regex
  27. _php_mb_free_regex
  28. php_mb_nls_get_default_detect_order_list
  29. php_mb_rfc1867_substring_conf
  30. php_mb_rfc1867_getword
  31. php_mb_rfc1867_getword_conf
  32. php_mb_rfc1867_basename
  33. PHP_INI_MH
  34. PHP_INI_MH
  35. PHP_INI_MH
  36. PHP_INI_MH
  37. _php_mb_ini_mbstring_internal_encoding_set
  38. PHP_INI_MH
  39. PHP_INI_MH
  40. PHP_INI_MH
  41. PHP_INI_MH
  42. PHP_INI_BEGIN
  43. PHP_GSHUTDOWN_FUNCTION
  44. PHP_MINIT_FUNCTION
  45. PHP_MSHUTDOWN_FUNCTION
  46. PHP_RINIT_FUNCTION
  47. PHP_RSHUTDOWN_FUNCTION
  48. PHP_MINFO_FUNCTION
  49. PHP_FUNCTION
  50. PHP_FUNCTION
  51. PHP_FUNCTION
  52. PHP_FUNCTION
  53. PHP_FUNCTION
  54. PHP_FUNCTION
  55. PHP_FUNCTION
  56. PHP_FUNCTION
  57. PHP_FUNCTION
  58. PHP_FUNCTION
  59. PHP_FUNCTION
  60. PHP_FUNCTION
  61. PHP_FUNCTION
  62. PHP_FUNCTION
  63. PHP_FUNCTION
  64. PHP_FUNCTION
  65. PHP_FUNCTION
  66. PHP_FUNCTION
  67. PHP_FUNCTION
  68. PHP_FUNCTION
  69. PHP_FUNCTION
  70. PHP_FUNCTION
  71. PHP_FUNCTION
  72. php_mb_convert_encoding
  73. PHP_FUNCTION
  74. PHP_FUNCTION
  75. PHP_FUNCTION
  76. PHP_FUNCTION
  77. PHP_FUNCTION
  78. PHP_FUNCTION
  79. PHP_FUNCTION
  80. PHP_FUNCTION
  81. PHP_FUNCTION
  82. PHP_FUNCTION
  83. PHP_FUNCTION
  84. php_mb_numericentity_exec
  85. PHP_FUNCTION
  86. PHP_FUNCTION
  87. my_smart_str_dtor
  88. _php_mbstr_parse_mail_headers
  89. PHP_FUNCTION
  90. PHP_FUNCTION
  91. PHP_FUNCTION
  92. php_mb_populate_current_detect_order_list
  93. php_mb_encoding_translation
  94. php_mb_mbchar_bytes_ex
  95. php_mb_mbchar_bytes
  96. php_mb_safe_strrchr_ex
  97. php_mb_safe_strrchr
  98. php_mb_stripos
  99. php_mb_gpc_get_detect_order
  100. php_mb_gpc_set_input_encoding

/*
   +----------------------------------------------------------------------+
   | PHP Version 5                                                        |
   +----------------------------------------------------------------------+
   | Copyright (c) 1997-2015 The PHP Group                                |
   +----------------------------------------------------------------------+
   | 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:           |
   | http://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.               |
   +----------------------------------------------------------------------+
   | Author: Tsukada Takuya <tsukada@fminn.nagano.nagano.jp>              |
   |         Rui Hirokawa <hirokawa@php.net>                              |
   +----------------------------------------------------------------------+
 */

/* $Id$ */

/*
 * PHP 4 Multibyte String module "mbstring"
 *
 * History:
 *   2000.5.19  Release php-4.0RC2_jstring-1.0
 *   2001.4.1   Release php4_jstring-1.0.91
 *   2001.4.30  Release php4_jstring-1.1 (contribute to The PHP Group)
 *   2001.5.1   Renamed from jstring to mbstring (hirokawa@php.net)
 */

/*
 * PHP3 Internationalization support program.
 *
 * Copyright (c) 1999,2000 by the PHP3 internationalization team.
 * All rights reserved.
 *
 * See README_PHP3-i18n-ja for more detail.
 *
 * Authors:
 *    Hironori Sato <satoh@jpnnet.com>
 *    Shigeru Kanemoto <sgk@happysize.co.jp>
 *    Tsukada Takuya <tsukada@fminn.nagano.nagano.jp>
 *    Rui Hirokawa <rui_hirokawa@ybb.ne.jp>
 */

/* {{{ includes */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "php.h"
#include "php_ini.h"
#include "php_variables.h"
#include "mbstring.h"
#include "ext/standard/php_string.h"
#include "ext/standard/php_mail.h"
#include "ext/standard/exec.h"
#include "ext/standard/php_smart_str.h"
#include "ext/standard/url.h"
#include "main/php_output.h"
#include "ext/standard/info.h"

#include "libmbfl/mbfl/mbfl_allocators.h"
#include "libmbfl/mbfl/mbfilter_pass.h"

#include "php_variables.h"
#include "php_globals.h"
#include "rfc1867.h"
#include "php_content_types.h"
#include "SAPI.h"
#include "php_unicode.h"
#include "TSRM.h"

#include "mb_gpc.h"

#if HAVE_MBREGEX
#include "php_mbregex.h"
#endif

#include "zend_multibyte.h"

#if HAVE_ONIG
#include "php_onig_compat.h"
#include <oniguruma.h>
#undef UChar
#elif HAVE_PCRE || HAVE_BUNDLED_PCRE
#include "ext/pcre/php_pcre.h"
#endif
/* }}} */

#if HAVE_MBSTRING

/* {{{ prototypes */
ZEND_DECLARE_MODULE_GLOBALS(mbstring)

static PHP_GINIT_FUNCTION(mbstring);
static PHP_GSHUTDOWN_FUNCTION(mbstring);

static void php_mb_populate_current_detect_order_list(TSRMLS_D);

static int php_mb_encoding_translation(TSRMLS_D);

static void php_mb_gpc_get_detect_order(const zend_encoding ***list, size_t *list_size TSRMLS_DC);

static void php_mb_gpc_set_input_encoding(const zend_encoding *encoding TSRMLS_DC);

/* }}} */

/* {{{ php_mb_default_identify_list */
typedef struct _php_mb_nls_ident_list {
        enum mbfl_no_language lang;
        const enum mbfl_no_encoding *list;
        size_t list_size;
} php_mb_nls_ident_list;

static const enum mbfl_no_encoding php_mb_default_identify_list_ja[] = {
        mbfl_no_encoding_ascii,
        mbfl_no_encoding_jis,
        mbfl_no_encoding_utf8,
        mbfl_no_encoding_euc_jp,
        mbfl_no_encoding_sjis
};

static const enum mbfl_no_encoding php_mb_default_identify_list_cn[] = {
        mbfl_no_encoding_ascii,
        mbfl_no_encoding_utf8,
        mbfl_no_encoding_euc_cn,
        mbfl_no_encoding_cp936
};

static const enum mbfl_no_encoding php_mb_default_identify_list_tw_hk[] = {
        mbfl_no_encoding_ascii,
        mbfl_no_encoding_utf8,
        mbfl_no_encoding_euc_tw,
        mbfl_no_encoding_big5
};

static const enum mbfl_no_encoding php_mb_default_identify_list_kr[] = {
        mbfl_no_encoding_ascii,
        mbfl_no_encoding_utf8,
        mbfl_no_encoding_euc_kr,
        mbfl_no_encoding_uhc
};

static const enum mbfl_no_encoding php_mb_default_identify_list_ru[] = {
        mbfl_no_encoding_ascii,
        mbfl_no_encoding_utf8,
        mbfl_no_encoding_koi8r,
        mbfl_no_encoding_cp1251,
        mbfl_no_encoding_cp866
};

static const enum mbfl_no_encoding php_mb_default_identify_list_hy[] = {
        mbfl_no_encoding_ascii,
        mbfl_no_encoding_utf8,
        mbfl_no_encoding_armscii8
};

static const enum mbfl_no_encoding php_mb_default_identify_list_tr[] = {
        mbfl_no_encoding_ascii,
        mbfl_no_encoding_utf8,
        mbfl_no_encoding_cp1254,
        mbfl_no_encoding_8859_9
};

static const enum mbfl_no_encoding php_mb_default_identify_list_ua[] = {
        mbfl_no_encoding_ascii,
        mbfl_no_encoding_utf8,
        mbfl_no_encoding_koi8u
};

static const enum mbfl_no_encoding php_mb_default_identify_list_neut[] = {
        mbfl_no_encoding_ascii,
        mbfl_no_encoding_utf8
};


static const php_mb_nls_ident_list php_mb_default_identify_list[] = {
        { mbfl_no_language_japanese, php_mb_default_identify_list_ja, sizeof(php_mb_default_identify_list_ja) / sizeof(php_mb_default_identify_list_ja[0]) },
        { mbfl_no_language_korean, php_mb_default_identify_list_kr, sizeof(php_mb_default_identify_list_kr) / sizeof(php_mb_default_identify_list_kr[0]) },
        { mbfl_no_language_traditional_chinese, php_mb_default_identify_list_tw_hk, sizeof(php_mb_default_identify_list_tw_hk) / sizeof(php_mb_default_identify_list_tw_hk[0]) },
        { mbfl_no_language_simplified_chinese, php_mb_default_identify_list_cn, sizeof(php_mb_default_identify_list_cn) / sizeof(php_mb_default_identify_list_cn[0]) },
        { mbfl_no_language_russian, php_mb_default_identify_list_ru, sizeof(php_mb_default_identify_list_ru) / sizeof(php_mb_default_identify_list_ru[0]) },
        { mbfl_no_language_armenian, php_mb_default_identify_list_hy, sizeof(php_mb_default_identify_list_hy) / sizeof(php_mb_default_identify_list_hy[0]) },
        { mbfl_no_language_turkish, php_mb_default_identify_list_tr, sizeof(php_mb_default_identify_list_tr) / sizeof(php_mb_default_identify_list_tr[0]) },
        { mbfl_no_language_ukrainian, php_mb_default_identify_list_ua, sizeof(php_mb_default_identify_list_ua) / sizeof(php_mb_default_identify_list_ua[0]) },
        { mbfl_no_language_neutral, php_mb_default_identify_list_neut, sizeof(php_mb_default_identify_list_neut) / sizeof(php_mb_default_identify_list_neut[0]) }
};

/* }}} */

/* {{{ mb_overload_def mb_ovld[] */
static const struct mb_overload_def mb_ovld[] = {
        {MB_OVERLOAD_MAIL, "mail", "mb_send_mail", "mb_orig_mail"},
        {MB_OVERLOAD_STRING, "strlen", "mb_strlen", "mb_orig_strlen"},
        {MB_OVERLOAD_STRING, "strpos", "mb_strpos", "mb_orig_strpos"},
        {MB_OVERLOAD_STRING, "strrpos", "mb_strrpos", "mb_orig_strrpos"},
        {MB_OVERLOAD_STRING, "stripos", "mb_stripos", "mb_orig_stripos"},
        {MB_OVERLOAD_STRING, "strripos", "mb_strripos", "mb_orig_strripos"},
        {MB_OVERLOAD_STRING, "strstr", "mb_strstr", "mb_orig_strstr"},
        {MB_OVERLOAD_STRING, "strrchr", "mb_strrchr", "mb_orig_strrchr"},
        {MB_OVERLOAD_STRING, "stristr", "mb_stristr", "mb_orig_stristr"},
        {MB_OVERLOAD_STRING, "substr", "mb_substr", "mb_orig_substr"},
        {MB_OVERLOAD_STRING, "strtolower", "mb_strtolower", "mb_orig_strtolower"},
        {MB_OVERLOAD_STRING, "strtoupper", "mb_strtoupper", "mb_orig_strtoupper"},
        {MB_OVERLOAD_STRING, "substr_count", "mb_substr_count", "mb_orig_substr_count"},
#if HAVE_MBREGEX
        {MB_OVERLOAD_REGEX, "ereg", "mb_ereg", "mb_orig_ereg"},
        {MB_OVERLOAD_REGEX, "eregi", "mb_eregi", "mb_orig_eregi"},
        {MB_OVERLOAD_REGEX, "ereg_replace", "mb_ereg_replace", "mb_orig_ereg_replace"},
        {MB_OVERLOAD_REGEX, "eregi_replace", "mb_eregi_replace", "mb_orig_eregi_replace"},
        {MB_OVERLOAD_REGEX, "split", "mb_split", "mb_orig_split"},
#endif
        {0, NULL, NULL, NULL}
}; 
/* }}} */

/* {{{ arginfo */
ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_language, 0, 0, 0)
        ZEND_ARG_INFO(0, language)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_internal_encoding, 0, 0, 0)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_http_input, 0, 0, 0)
        ZEND_ARG_INFO(0, type)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_http_output, 0, 0, 0)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_detect_order, 0, 0, 0)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_substitute_character, 0, 0, 0)
        ZEND_ARG_INFO(0, substchar)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_preferred_mime_name, 0, 0, 1)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_parse_str, 0, 0, 1)
        ZEND_ARG_INFO(0, encoded_string)
        ZEND_ARG_INFO(1, result)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_output_handler, 0, 0, 2)
        ZEND_ARG_INFO(0, contents)
        ZEND_ARG_INFO(0, status)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_strlen, 0, 0, 1)
        ZEND_ARG_INFO(0, str)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_strpos, 0, 0, 2)
        ZEND_ARG_INFO(0, haystack)
        ZEND_ARG_INFO(0, needle)
        ZEND_ARG_INFO(0, offset)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_strrpos, 0, 0, 2)
        ZEND_ARG_INFO(0, haystack)
        ZEND_ARG_INFO(0, needle)
        ZEND_ARG_INFO(0, offset)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_stripos, 0, 0, 2)
        ZEND_ARG_INFO(0, haystack)
        ZEND_ARG_INFO(0, needle)
        ZEND_ARG_INFO(0, offset)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_strripos, 0, 0, 2)
        ZEND_ARG_INFO(0, haystack)
        ZEND_ARG_INFO(0, needle)
        ZEND_ARG_INFO(0, offset)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_strstr, 0, 0, 2)
        ZEND_ARG_INFO(0, haystack)
        ZEND_ARG_INFO(0, needle)
        ZEND_ARG_INFO(0, part)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_strrchr, 0, 0, 2)
        ZEND_ARG_INFO(0, haystack)
        ZEND_ARG_INFO(0, needle)
        ZEND_ARG_INFO(0, part)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_stristr, 0, 0, 2)
        ZEND_ARG_INFO(0, haystack)
        ZEND_ARG_INFO(0, needle)
        ZEND_ARG_INFO(0, part)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_strrichr, 0, 0, 2)
        ZEND_ARG_INFO(0, haystack)
        ZEND_ARG_INFO(0, needle)
        ZEND_ARG_INFO(0, part)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_substr_count, 0, 0, 2)
        ZEND_ARG_INFO(0, haystack)
        ZEND_ARG_INFO(0, needle)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_substr, 0, 0, 2)
        ZEND_ARG_INFO(0, str)
        ZEND_ARG_INFO(0, start)
        ZEND_ARG_INFO(0, length)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_strcut, 0, 0, 2)
        ZEND_ARG_INFO(0, str)
        ZEND_ARG_INFO(0, start)
        ZEND_ARG_INFO(0, length)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_strwidth, 0, 0, 1)
        ZEND_ARG_INFO(0, str)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_strimwidth, 0, 0, 3)
        ZEND_ARG_INFO(0, str)
        ZEND_ARG_INFO(0, start)
        ZEND_ARG_INFO(0, width)
        ZEND_ARG_INFO(0, trimmarker)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_convert_encoding, 0, 0, 2)
        ZEND_ARG_INFO(0, str)
        ZEND_ARG_INFO(0, to)
        ZEND_ARG_INFO(0, from)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_convert_case, 0, 0, 2)
        ZEND_ARG_INFO(0, sourcestring)
        ZEND_ARG_INFO(0, mode)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_strtoupper, 0, 0, 1)
        ZEND_ARG_INFO(0, sourcestring)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_strtolower, 0, 0, 1)
        ZEND_ARG_INFO(0, sourcestring)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_detect_encoding, 0, 0, 1)
        ZEND_ARG_INFO(0, str)
        ZEND_ARG_INFO(0, encoding_list)
        ZEND_ARG_INFO(0, strict)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO(arginfo_mb_list_encodings, 0)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_encoding_aliases, 0, 0, 1)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_encode_mimeheader, 0, 0, 1)
        ZEND_ARG_INFO(0, str)
        ZEND_ARG_INFO(0, charset)
        ZEND_ARG_INFO(0, transfer)
        ZEND_ARG_INFO(0, linefeed)
        ZEND_ARG_INFO(0, indent)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_decode_mimeheader, 0, 0, 1)
        ZEND_ARG_INFO(0, string)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_convert_kana, 0, 0, 1)
        ZEND_ARG_INFO(0, str)
        ZEND_ARG_INFO(0, option)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_convert_variables, 0, 0, 3)
        ZEND_ARG_INFO(0, to)
        ZEND_ARG_INFO(0, from)
        ZEND_ARG_VARIADIC_INFO(1, vars)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_encode_numericentity, 0, 0, 2)
        ZEND_ARG_INFO(0, string)
        ZEND_ARG_INFO(0, convmap)
        ZEND_ARG_INFO(0, encoding)
        ZEND_ARG_INFO(0, is_hex)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_decode_numericentity, 0, 0, 2)
        ZEND_ARG_INFO(0, string)
        ZEND_ARG_INFO(0, convmap)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_send_mail, 0, 0, 3)
        ZEND_ARG_INFO(0, to)
        ZEND_ARG_INFO(0, subject)
        ZEND_ARG_INFO(0, message)
        ZEND_ARG_INFO(0, additional_headers)
        ZEND_ARG_INFO(0, additional_parameters)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_get_info, 0, 0, 0)
        ZEND_ARG_INFO(0, type)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_check_encoding, 0, 0, 0)
        ZEND_ARG_INFO(0, var)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_regex_encoding, 0, 0, 0)
        ZEND_ARG_INFO(0, encoding)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_ereg, 0, 0, 2)
        ZEND_ARG_INFO(0, pattern)
        ZEND_ARG_INFO(0, string)
        ZEND_ARG_INFO(1, registers)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_eregi, 0, 0, 2)
        ZEND_ARG_INFO(0, pattern)
        ZEND_ARG_INFO(0, string)
        ZEND_ARG_INFO(1, registers)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_ereg_replace, 0, 0, 3)
        ZEND_ARG_INFO(0, pattern)
        ZEND_ARG_INFO(0, replacement)
        ZEND_ARG_INFO(0, string)
        ZEND_ARG_INFO(0, option)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_eregi_replace, 0, 0, 3)
        ZEND_ARG_INFO(0, pattern)
        ZEND_ARG_INFO(0, replacement)
        ZEND_ARG_INFO(0, string)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_ereg_replace_callback, 0, 0, 3)
        ZEND_ARG_INFO(0, pattern)
        ZEND_ARG_INFO(0, callback)
        ZEND_ARG_INFO(0, string)
        ZEND_ARG_INFO(0, option)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_split, 0, 0, 2)
        ZEND_ARG_INFO(0, pattern)
        ZEND_ARG_INFO(0, string)
        ZEND_ARG_INFO(0, limit)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_ereg_match, 0, 0, 2)
        ZEND_ARG_INFO(0, pattern)
        ZEND_ARG_INFO(0, string)
        ZEND_ARG_INFO(0, option)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_ereg_search, 0, 0, 0)
        ZEND_ARG_INFO(0, pattern)
        ZEND_ARG_INFO(0, option)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_ereg_search_pos, 0, 0, 0)
        ZEND_ARG_INFO(0, pattern)
        ZEND_ARG_INFO(0, option)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_ereg_search_regs, 0, 0, 0)
        ZEND_ARG_INFO(0, pattern)
        ZEND_ARG_INFO(0, option)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_ereg_search_init, 0, 0, 1)
        ZEND_ARG_INFO(0, string)
        ZEND_ARG_INFO(0, pattern)
        ZEND_ARG_INFO(0, option)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO(arginfo_mb_ereg_search_getregs, 0)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO(arginfo_mb_ereg_search_getpos, 0)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_ereg_search_setpos, 0, 0, 1)
        ZEND_ARG_INFO(0, position)
ZEND_END_ARG_INFO()

ZEND_BEGIN_ARG_INFO_EX(arginfo_mb_regex_set_options, 0, 0, 0)
        ZEND_ARG_INFO(0, options)
ZEND_END_ARG_INFO()
/* }}} */

/* {{{ zend_function_entry mbstring_functions[] */
const zend_function_entry mbstring_functions[] = {
        PHP_FE(mb_convert_case,                 arginfo_mb_convert_case)
        PHP_FE(mb_strtoupper,                   arginfo_mb_strtoupper)
        PHP_FE(mb_strtolower,                   arginfo_mb_strtolower)
        PHP_FE(mb_language,                             arginfo_mb_language)
        PHP_FE(mb_internal_encoding,    arginfo_mb_internal_encoding)
        PHP_FE(mb_http_input,                   arginfo_mb_http_input)
        PHP_FE(mb_http_output,                  arginfo_mb_http_output)
        PHP_FE(mb_detect_order,                 arginfo_mb_detect_order)
        PHP_FE(mb_substitute_character, arginfo_mb_substitute_character)
        PHP_FE(mb_parse_str,                    arginfo_mb_parse_str)
        PHP_FE(mb_output_handler,               arginfo_mb_output_handler)
        PHP_FE(mb_preferred_mime_name,  arginfo_mb_preferred_mime_name)
        PHP_FE(mb_strlen,                               arginfo_mb_strlen)
        PHP_FE(mb_strpos,                               arginfo_mb_strpos)
        PHP_FE(mb_strrpos,                              arginfo_mb_strrpos)
        PHP_FE(mb_stripos,                              arginfo_mb_stripos)
        PHP_FE(mb_strripos,                             arginfo_mb_strripos)
        PHP_FE(mb_strstr,                               arginfo_mb_strstr)
        PHP_FE(mb_strrchr,                              arginfo_mb_strrchr)
        PHP_FE(mb_stristr,                              arginfo_mb_stristr)
        PHP_FE(mb_strrichr,                             arginfo_mb_strrichr)
        PHP_FE(mb_substr_count,                 arginfo_mb_substr_count)
        PHP_FE(mb_substr,                               arginfo_mb_substr)
        PHP_FE(mb_strcut,                               arginfo_mb_strcut)
        PHP_FE(mb_strwidth,                             arginfo_mb_strwidth)
        PHP_FE(mb_strimwidth,                   arginfo_mb_strimwidth)
        PHP_FE(mb_convert_encoding,             arginfo_mb_convert_encoding)
        PHP_FE(mb_detect_encoding,              arginfo_mb_detect_encoding)
        PHP_FE(mb_list_encodings,               arginfo_mb_list_encodings)
        PHP_FE(mb_encoding_aliases,             arginfo_mb_encoding_aliases)
        PHP_FE(mb_convert_kana,                 arginfo_mb_convert_kana)
        PHP_FE(mb_encode_mimeheader,    arginfo_mb_encode_mimeheader)
        PHP_FE(mb_decode_mimeheader,    arginfo_mb_decode_mimeheader)
        PHP_FE(mb_convert_variables,    arginfo_mb_convert_variables)
        PHP_FE(mb_encode_numericentity, arginfo_mb_encode_numericentity)
        PHP_FE(mb_decode_numericentity, arginfo_mb_decode_numericentity)
        PHP_FE(mb_send_mail,                    arginfo_mb_send_mail)
        PHP_FE(mb_get_info,                             arginfo_mb_get_info)
        PHP_FE(mb_check_encoding,               arginfo_mb_check_encoding)
#if HAVE_MBREGEX
        PHP_MBREGEX_FUNCTION_ENTRIES
#endif
        PHP_FE_END
};
/* }}} */

/* {{{ zend_module_entry mbstring_module_entry */
zend_module_entry mbstring_module_entry = {
        STANDARD_MODULE_HEADER,
        "mbstring",
        mbstring_functions,
        PHP_MINIT(mbstring),
        PHP_MSHUTDOWN(mbstring),
        PHP_RINIT(mbstring),
        PHP_RSHUTDOWN(mbstring),
        PHP_MINFO(mbstring),
        NO_VERSION_YET,
        PHP_MODULE_GLOBALS(mbstring),
        PHP_GINIT(mbstring),
        PHP_GSHUTDOWN(mbstring),
        NULL,
        STANDARD_MODULE_PROPERTIES_EX
};
/* }}} */

/* {{{ static sapi_post_entry php_post_entries[] */
static sapi_post_entry php_post_entries[] = {
        { DEFAULT_POST_CONTENT_TYPE, sizeof(DEFAULT_POST_CONTENT_TYPE)-1, sapi_read_standard_form_data, php_std_post_handler },
        { MULTIPART_CONTENT_TYPE,    sizeof(MULTIPART_CONTENT_TYPE)-1,    NULL,                         rfc1867_post_handler },
        { NULL, 0, NULL, NULL }
};
/* }}} */

#ifdef COMPILE_DL_MBSTRING
ZEND_GET_MODULE(mbstring)
#endif

static char *get_internal_encoding(TSRMLS_D) {
        if (PG(internal_encoding) && PG(internal_encoding)[0]) {
                return PG(internal_encoding);
        } else if (SG(default_charset)) {
                return SG(default_charset);
        }
        return "";
}

static char *get_input_encoding(TSRMLS_D) {
        if (PG(input_encoding) && PG(input_encoding)[0]) {
                return PG(input_encoding);
        } else if (SG(default_charset)) {
                return SG(default_charset);
        }
        return "";
}

static char *get_output_encoding(TSRMLS_D) {
        if (PG(output_encoding) && PG(output_encoding)[0]) {
                return PG(output_encoding);
        } else if (SG(default_charset)) {
                return SG(default_charset);
        }
        return "";
}


/* {{{ allocators */
static void *_php_mb_allocators_malloc(unsigned int sz)
{
        return emalloc(sz);
}

static void *_php_mb_allocators_realloc(void *ptr, unsigned int sz)
{
        return erealloc(ptr, sz);
}

static void *_php_mb_allocators_calloc(unsigned int nelems, unsigned int szelem)
{
        return ecalloc(nelems, szelem);
}

static void _php_mb_allocators_free(void *ptr)
{
        efree(ptr);
} 

static void *_php_mb_allocators_pmalloc(unsigned int sz)
{
        return pemalloc(sz, 1);
}

static void *_php_mb_allocators_prealloc(void *ptr, unsigned int sz)
{
        return perealloc(ptr, sz, 1);
}

static void _php_mb_allocators_pfree(void *ptr)
{
        pefree(ptr, 1);
} 

static mbfl_allocators _php_mb_allocators = {
        _php_mb_allocators_malloc,
        _php_mb_allocators_realloc,
        _php_mb_allocators_calloc,
        _php_mb_allocators_free,
        _php_mb_allocators_pmalloc,
        _php_mb_allocators_prealloc,
        _php_mb_allocators_pfree
};
/* }}} */

/* {{{ static sapi_post_entry mbstr_post_entries[] */
static sapi_post_entry mbstr_post_entries[] = {
        { DEFAULT_POST_CONTENT_TYPE, sizeof(DEFAULT_POST_CONTENT_TYPE)-1, sapi_read_standard_form_data, php_mb_post_handler },
        { MULTIPART_CONTENT_TYPE,    sizeof(MULTIPART_CONTENT_TYPE)-1,    NULL,                         rfc1867_post_handler },
        { NULL, 0, NULL, NULL }
};
/* }}} */

/* {{{ static int php_mb_parse_encoding_list()
 *  Return 0 if input contains any illegal encoding, otherwise 1.
 *  Even if any illegal encoding is detected the result may contain a list 
 *  of parsed encodings.
 */
static int
php_mb_parse_encoding_list(const char *value, size_t value_length, const mbfl_encoding ***return_list, size_t *return_size, int persistent TSRMLS_DC)
{
        int size, bauto, ret = SUCCESS;
        size_t n;
        char *p, *p1, *p2, *endp, *tmpstr;
        const mbfl_encoding **entry, **list;

        list = NULL;
        if (value == NULL || value_length <= 0) {
                if (return_list) {
                        *return_list = NULL;
                }
                if (return_size) {
                        *return_size = 0;
                }
                return FAILURE;
        } else {
                /* copy the value string for work */
                if (value[0]=='"' && value[value_length-1]=='"' && value_length>2) {
                        tmpstr = (char *)estrndup(value+1, value_length-2);
                        value_length -= 2;
                }
                else
                        tmpstr = (char *)estrndup(value, value_length);
                if (tmpstr == NULL) {
                        return FAILURE;
                }
                /* count the number of listed encoding names */
                endp = tmpstr + value_length;
                n = 1;
                p1 = tmpstr;
                while ((p2 = php_memnstr(p1, ",", 1, endp)) != NULL) {
                        p1 = p2 + 1;
                        n++;
                }
                size = n + MBSTRG(default_detect_order_list_size);
                /* make list */
                list = (const mbfl_encoding **)pecalloc(size, sizeof(mbfl_encoding*), persistent);
                if (list != NULL) {
                        entry = list;
                        n = 0;
                        bauto = 0;
                        p1 = tmpstr;
                        do {
                                p2 = p = php_memnstr(p1, ",", 1, endp);
                                if (p == NULL) {
                                        p = endp;
                                }
                                *p = '\0';
                                /* trim spaces */
                                while (p1 < p && (*p1 == ' ' || *p1 == '\t')) {
                                        p1++;
                                }
                                p--;
                                while (p > p1 && (*p == ' ' || *p == '\t')) {
                                        *p = '\0';
                                        p--;
                                }
                                /* convert to the encoding number and check encoding */
                                if (strcasecmp(p1, "auto") == 0) {
                                        if (!bauto) {
                                                const enum mbfl_no_encoding *src = MBSTRG(default_detect_order_list);
                                                const size_t identify_list_size = MBSTRG(default_detect_order_list_size);
                                                size_t i;
                                                bauto = 1;
                                                for (i = 0; i < identify_list_size; i++) {
                                                        *entry++ = mbfl_no2encoding(*src++);
                                                        n++;
                                                }
                                        }
                                } else {
                                        const mbfl_encoding *encoding = mbfl_name2encoding(p1);
                                        if (encoding) {
                                                *entry++ = encoding;
                                                n++;
                                        } else {
                                                ret = 0;
                                        }
                                }
                                p1 = p2 + 1;
                        } while (n < size && p2 != NULL);
                        if (n > 0) {
                                if (return_list) {
                                        *return_list = list;
                                } else {
                                        pefree(list, persistent);
                                }
                        } else {
                                pefree(list, persistent);
                                if (return_list) {
                                        *return_list = NULL;
                                }
                                ret = 0;
                        }
                        if (return_size) {
                                *return_size = n;
                        }
                } else {
                        if (return_list) {
                                *return_list = NULL;
                        }
                        if (return_size) {
                                *return_size = 0;
                        }
                        ret = 0;
                }
                efree(tmpstr);
        }

        return ret;
}
/* }}} */

/* {{{ static int php_mb_parse_encoding_array()
 *  Return 0 if input contains any illegal encoding, otherwise 1.
 *  Even if any illegal encoding is detected the result may contain a list 
 *  of parsed encodings.
 */
static int
php_mb_parse_encoding_array(zval *array, const mbfl_encoding ***return_list, size_t *return_size, int persistent TSRMLS_DC)
{
        zval **hash_entry;
        HashTable *target_hash;
        int i, n, size, bauto, ret = SUCCESS;
        const mbfl_encoding **list, **entry;

        list = NULL;
        if (Z_TYPE_P(array) == IS_ARRAY) {
                target_hash = Z_ARRVAL_P(array);
                zend_hash_internal_pointer_reset(target_hash);
                i = zend_hash_num_elements(target_hash);
                size = i + MBSTRG(default_detect_order_list_size);
                list = (const mbfl_encoding **)pecalloc(size, sizeof(mbfl_encoding*), persistent);
                if (list != NULL) {
                        entry = list;
                        bauto = 0;
                        n = 0;
                        while (i > 0) {
                                if (zend_hash_get_current_data(target_hash, (void **) &hash_entry) == FAILURE) {
                                        break;
                                }
                                convert_to_string_ex(hash_entry);
                                if (strcasecmp(Z_STRVAL_PP(hash_entry), "auto") == 0) {
                                        if (!bauto) {
                                                const enum mbfl_no_encoding *src = MBSTRG(default_detect_order_list);
                                                const size_t identify_list_size = MBSTRG(default_detect_order_list_size);
                                                size_t j;

                                                bauto = 1;
                                                for (j = 0; j < identify_list_size; j++) {
                                                        *entry++ = mbfl_no2encoding(*src++);
                                                        n++;
                                                }
                                        }
                                } else {
                                        const mbfl_encoding *encoding = mbfl_name2encoding(Z_STRVAL_PP(hash_entry));
                                        if (encoding) {
                                                *entry++ = encoding;
                                                n++;
                                        } else {
                                                ret = FAILURE;
                                        }
                                }
                                zend_hash_move_forward(target_hash);
                                i--;
                        }
                        if (n > 0) {
                                if (return_list) {
                                        *return_list = list;
                                } else {
                                        pefree(list, persistent);
                                }
                        } else {
                                pefree(list, persistent);
                                if (return_list) {
                                        *return_list = NULL;
                                }
                                ret = FAILURE;
                        }
                        if (return_size) {
                                *return_size = n;
                        }
                } else {
                        if (return_list) {
                                *return_list = NULL;
                        }
                        if (return_size) {
                                *return_size = 0;
                        }
                        ret = FAILURE;
                }
        }

        return ret;
}
/* }}} */

/* {{{ zend_multibyte interface */
static const zend_encoding* php_mb_zend_encoding_fetcher(const char *encoding_name TSRMLS_DC)
{
        return (const zend_encoding*)mbfl_name2encoding(encoding_name);
}

static const char *php_mb_zend_encoding_name_getter(const zend_encoding *encoding)
{
        return ((const mbfl_encoding *)encoding)->name;
}

static int php_mb_zend_encoding_lexer_compatibility_checker(const zend_encoding *_encoding)
{
        const mbfl_encoding *encoding = (const mbfl_encoding*)_encoding;
        if (encoding->flag & MBFL_ENCTYPE_SBCS) {
                return 1;
        }
        if ((encoding->flag & (MBFL_ENCTYPE_MBCS | MBFL_ENCTYPE_GL_UNSAFE)) == MBFL_ENCTYPE_MBCS) {
                return 1;
        }
        return 0;
}

static const zend_encoding *php_mb_zend_encoding_detector(const unsigned char *arg_string, size_t arg_length, const zend_encoding **list, size_t list_size TSRMLS_DC)
{
        mbfl_string string;

        if (!list) {
                list = (const zend_encoding **)MBSTRG(current_detect_order_list);
                list_size = MBSTRG(current_detect_order_list_size);
        }

        mbfl_string_init(&string);
        string.no_language = MBSTRG(language);
        string.val = (unsigned char *)arg_string;
        string.len = arg_length;
        return (const zend_encoding *) mbfl_identify_encoding2(&string, (const mbfl_encoding **)list, list_size, 0);
}

static size_t php_mb_zend_encoding_converter(unsigned char **to, size_t *to_length, const unsigned char *from, size_t from_length, const zend_encoding *encoding_to, const zend_encoding *encoding_from TSRMLS_DC)
{
        mbfl_string string, result;
        mbfl_buffer_converter *convd;
        int status, loc;

        /* new encoding */
        /* initialize string */
        mbfl_string_init(&string);
        mbfl_string_init(&result);
        string.no_encoding = ((const mbfl_encoding*)encoding_from)->no_encoding;
        string.no_language = MBSTRG(language);
        string.val = (unsigned char*)from;
        string.len = from_length;

        /* initialize converter */
        convd = mbfl_buffer_converter_new2((const mbfl_encoding *)encoding_from, (const mbfl_encoding *)encoding_to, string.len);
        if (convd == NULL) {
                return -1;
        }
        mbfl_buffer_converter_illegal_mode(convd, MBSTRG(current_filter_illegal_mode));
        mbfl_buffer_converter_illegal_substchar(convd, MBSTRG(current_filter_illegal_substchar));

        /* do it */
        status = mbfl_buffer_converter_feed2(convd, &string, &loc);
        if (status) {
                mbfl_buffer_converter_delete(convd);
                return (size_t)-1;
        }

        mbfl_buffer_converter_flush(convd);
        if (!mbfl_buffer_converter_result(convd, &result)) {
                mbfl_buffer_converter_delete(convd);
                return (size_t)-1;
        }       

        *to = result.val;
        *to_length = result.len;

        mbfl_buffer_converter_delete(convd);

        return loc;
}

static int php_mb_zend_encoding_list_parser(const char *encoding_list, size_t encoding_list_len, const zend_encoding ***return_list, size_t *return_size, int persistent TSRMLS_DC)
{
        return php_mb_parse_encoding_list(encoding_list, encoding_list_len, (const mbfl_encoding ***)return_list, return_size, persistent TSRMLS_CC);
}

static const zend_encoding *php_mb_zend_internal_encoding_getter(TSRMLS_D)
{
        return (const zend_encoding *)MBSTRG(internal_encoding);
}

static int php_mb_zend_internal_encoding_setter(const zend_encoding *encoding TSRMLS_DC)
{
        MBSTRG(internal_encoding) = (const mbfl_encoding *)encoding;
        return SUCCESS;
}

static zend_multibyte_functions php_mb_zend_multibyte_functions = {
        "mbstring",
        php_mb_zend_encoding_fetcher,
        php_mb_zend_encoding_name_getter,
        php_mb_zend_encoding_lexer_compatibility_checker,
        php_mb_zend_encoding_detector,
        php_mb_zend_encoding_converter,
        php_mb_zend_encoding_list_parser,
        php_mb_zend_internal_encoding_getter,
        php_mb_zend_internal_encoding_setter
};
/* }}} */

static void *_php_mb_compile_regex(const char *pattern TSRMLS_DC);
static int _php_mb_match_regex(void *opaque, const char *str, size_t str_len);
static void _php_mb_free_regex(void *opaque);

#if HAVE_ONIG
/* {{{ _php_mb_compile_regex */
static void *_php_mb_compile_regex(const char *pattern TSRMLS_DC)
{
        php_mb_regex_t *retval;
        OnigErrorInfo err_info;
        int err_code;

        if ((err_code = onig_new(&retval,
                        (const OnigUChar *)pattern,
                        (const OnigUChar *)pattern + strlen(pattern),
                        ONIG_OPTION_IGNORECASE | ONIG_OPTION_DONT_CAPTURE_GROUP,
                        ONIG_ENCODING_ASCII, &OnigSyntaxPerl, &err_info))) {
                OnigUChar err_str[ONIG_MAX_ERROR_MESSAGE_LEN];
                onig_error_code_to_str(err_str, err_code, err_info);
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s: %s", pattern, err_str);
                retval = NULL;
        }
        return retval;
}
/* }}} */

/* {{{ _php_mb_match_regex */
static int _php_mb_match_regex(void *opaque, const char *str, size_t str_len)
{
        return onig_search((php_mb_regex_t *)opaque, (const OnigUChar *)str,
                        (const OnigUChar*)str + str_len, (const OnigUChar *)str,
                        (const OnigUChar*)str + str_len, NULL, ONIG_OPTION_NONE) >= 0;
}
/* }}} */

/* {{{ _php_mb_free_regex */
static void _php_mb_free_regex(void *opaque)
{
        onig_free((php_mb_regex_t *)opaque);
}
/* }}} */
#elif HAVE_PCRE || HAVE_BUNDLED_PCRE
/* {{{ _php_mb_compile_regex */
static void *_php_mb_compile_regex(const char *pattern TSRMLS_DC)
{
        pcre *retval;
        const char *err_str;
        int err_offset;

        if (!(retval = pcre_compile(pattern,
                        PCRE_CASELESS, &err_str, &err_offset, NULL))) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s (offset=%d): %s", pattern, err_offset, err_str);
        }
        return retval;
}
/* }}} */

/* {{{ _php_mb_match_regex */
static int _php_mb_match_regex(void *opaque, const char *str, size_t str_len)
{
        return pcre_exec((pcre *)opaque, NULL, str, (int)str_len, 0,
                        0, NULL, 0) >= 0;
}
/* }}} */

/* {{{ _php_mb_free_regex */
static void _php_mb_free_regex(void *opaque)
{
        pcre_free(opaque);
}
/* }}} */
#endif

/* {{{ php_mb_nls_get_default_detect_order_list */
static int php_mb_nls_get_default_detect_order_list(enum mbfl_no_language lang, enum mbfl_no_encoding **plist, size_t *plist_size)
{
        size_t i;

        *plist = (enum mbfl_no_encoding *) php_mb_default_identify_list_neut;
        *plist_size = sizeof(php_mb_default_identify_list_neut) / sizeof(php_mb_default_identify_list_neut[0]);

        for (i = 0; i < sizeof(php_mb_default_identify_list) / sizeof(php_mb_default_identify_list[0]); i++) {
                if (php_mb_default_identify_list[i].lang == lang) {
                        *plist = (enum mbfl_no_encoding *)php_mb_default_identify_list[i].list;
                        *plist_size = php_mb_default_identify_list[i].list_size;
                        return 1;
                }
        }
        return 0;
}
/* }}} */

static char *php_mb_rfc1867_substring_conf(const zend_encoding *encoding, char *start, int len, char quote TSRMLS_DC)
{
        char *result = emalloc(len + 2);
        char *resp = result;
        int i;

        for (i = 0; i < len && start[i] != quote; ++i) {
                if (start[i] == '\\' && (start[i + 1] == '\\' || (quote && start[i + 1] == quote))) {
                        *resp++ = start[++i];
                } else {
                        size_t j = php_mb_mbchar_bytes_ex(start+i, (const mbfl_encoding *)encoding);

                        while (j-- > 0 && i < len) {
                                *resp++ = start[i++];
                        }
                        --i;
                }
        }

        *resp = '\0';
        return result;
}

static char *php_mb_rfc1867_getword(const zend_encoding *encoding, char **line, char stop TSRMLS_DC) /* {{{ */
{
        char *pos = *line, quote;
        char *res;

        while (*pos && *pos != stop) {
                if ((quote = *pos) == '"' || quote == '\'') {
                        ++pos;
                        while (*pos && *pos != quote) {
                                if (*pos == '\\' && pos[1] && pos[1] == quote) {
                                        pos += 2;
                                } else {
                                        ++pos;
                                }
                        }
                        if (*pos) {
                                ++pos;
                        }
                } else {
                        pos += php_mb_mbchar_bytes_ex(pos, (const mbfl_encoding *)encoding);

                }
        }
        if (*pos == '\0') {
                res = estrdup(*line);
                *line += strlen(*line);
                return res;
        }

        res = estrndup(*line, pos - *line);

        while (*pos == stop) {
                pos += php_mb_mbchar_bytes_ex(pos, (const mbfl_encoding *)encoding);
        }

        *line = pos;
        return res;
}
/* }}} */

static char *php_mb_rfc1867_getword_conf(const zend_encoding *encoding, char *str TSRMLS_DC) /* {{{ */
{
        while (*str && isspace(*(unsigned char *)str)) {
                ++str;
        }

        if (!*str) {
                return estrdup("");
        }

        if (*str == '"' || *str == '\'') {
                char quote = *str;

                str++;
                return php_mb_rfc1867_substring_conf(encoding, str, strlen(str), quote TSRMLS_CC);
        } else {
                char *strend = str;

                while (*strend && !isspace(*(unsigned char *)strend)) {
                        ++strend;
                }
                return php_mb_rfc1867_substring_conf(encoding, str, strend - str, 0 TSRMLS_CC);
        }
}
/* }}} */

static char *php_mb_rfc1867_basename(const zend_encoding *encoding, char *filename TSRMLS_DC) /* {{{ */
{
        char *s, *s2;
        const size_t filename_len = strlen(filename);

        /* The \ check should technically be needed for win32 systems only where
         * it is a valid path separator. However, IE in all it's wisdom always sends
         * the full path of the file on the user's filesystem, which means that unless
         * the user does basename() they get a bogus file name. Until IE's user base drops
         * to nill or problem is fixed this code must remain enabled for all systems. */
        s = php_mb_safe_strrchr_ex(filename, '\\', filename_len, (const mbfl_encoding *)encoding);
        s2 = php_mb_safe_strrchr_ex(filename, '/', filename_len, (const mbfl_encoding *)encoding);
        
        if (s && s2) {
                if (s > s2) {
                        return ++s;
                } else {
                        return ++s2;
                }
        } else if (s) {
                return ++s;
        } else if (s2) {
                return ++s2;
        } else {
                return filename;
        }
}
/* }}} */

/* {{{ php.ini directive handler */
/* {{{ static PHP_INI_MH(OnUpdate_mbstring_language) */
static PHP_INI_MH(OnUpdate_mbstring_language)
{
        enum mbfl_no_language no_language;

        no_language = mbfl_name2no_language(new_value);
        if (no_language == mbfl_no_language_invalid) {
                MBSTRG(language) = mbfl_no_language_neutral;
                return FAILURE;
        }
        MBSTRG(language) = no_language;
        php_mb_nls_get_default_detect_order_list(no_language, &MBSTRG(default_detect_order_list), &MBSTRG(default_detect_order_list_size));
        return SUCCESS;
}
/* }}} */

/* {{{ static PHP_INI_MH(OnUpdate_mbstring_detect_order) */
static PHP_INI_MH(OnUpdate_mbstring_detect_order)
{
        const mbfl_encoding **list;
        size_t size;

        if (!new_value) {
                if (MBSTRG(detect_order_list)) {
                        pefree(MBSTRG(detect_order_list), 1);
                }
                MBSTRG(detect_order_list) = NULL;
                MBSTRG(detect_order_list_size) = 0;
                return SUCCESS;
        }

        if (FAILURE == php_mb_parse_encoding_list(new_value, new_value_length, &list, &size, 1 TSRMLS_CC)) {
                return FAILURE;
        }

        if (MBSTRG(detect_order_list)) {
                pefree(MBSTRG(detect_order_list), 1);
        }
        MBSTRG(detect_order_list) = list;
        MBSTRG(detect_order_list_size) = size;
        return SUCCESS;
}
/* }}} */

/* {{{ static PHP_INI_MH(OnUpdate_mbstring_http_input) */
static PHP_INI_MH(OnUpdate_mbstring_http_input)
{
        const mbfl_encoding **list;
        size_t size;

        if (!new_value) {
                if (MBSTRG(http_input_list)) {
                        pefree(MBSTRG(http_input_list), 1);
                }
                if (SUCCESS == php_mb_parse_encoding_list(get_input_encoding(TSRMLS_C), strlen(get_input_encoding(TSRMLS_C))+1, &list, &size, 1 TSRMLS_CC)) {
                        MBSTRG(http_input_list) = list;
                        MBSTRG(http_input_list_size) = size;
                        return SUCCESS;
                }
                MBSTRG(http_input_list) = NULL;
                MBSTRG(http_input_list_size) = 0;
                return SUCCESS;
        }

        if (FAILURE == php_mb_parse_encoding_list(new_value, new_value_length, &list, &size, 1 TSRMLS_CC)) {
                return FAILURE;
        }

        if (MBSTRG(http_input_list)) {
                pefree(MBSTRG(http_input_list), 1);
        }
        MBSTRG(http_input_list) = list;
        MBSTRG(http_input_list_size) = size;

        if (stage & (PHP_INI_STAGE_ACTIVATE | PHP_INI_STAGE_RUNTIME)) {
                php_error_docref("ref.mbstring" TSRMLS_CC, E_DEPRECATED, "Use of mbstring.http_input is deprecated");
        }

        return SUCCESS;
}
/* }}} */

/* {{{ static PHP_INI_MH(OnUpdate_mbstring_http_output) */
static PHP_INI_MH(OnUpdate_mbstring_http_output)
{
        const mbfl_encoding *encoding;

        if (new_value == NULL || new_value_length == 0) {
                encoding = mbfl_name2encoding(get_output_encoding(TSRMLS_C));
                if (!encoding) {
                        MBSTRG(http_output_encoding) = &mbfl_encoding_pass;
                        MBSTRG(current_http_output_encoding) = &mbfl_encoding_pass;
                        return SUCCESS;
                }
        } else {
                encoding = mbfl_name2encoding(new_value);
                if (!encoding) {
                        MBSTRG(http_output_encoding) = &mbfl_encoding_pass;
                        MBSTRG(current_http_output_encoding) = &mbfl_encoding_pass;
                        return FAILURE;
                }
        }
        MBSTRG(http_output_encoding) = encoding;
        MBSTRG(current_http_output_encoding) = encoding;

        if (stage & (PHP_INI_STAGE_ACTIVATE | PHP_INI_STAGE_RUNTIME)) {
                php_error_docref("ref.mbstring" TSRMLS_CC, E_DEPRECATED, "Use of mbstring.http_output is deprecated");
        }

        return SUCCESS;
}
/* }}} */

/* {{{ static _php_mb_ini_mbstring_internal_encoding_set */
int _php_mb_ini_mbstring_internal_encoding_set(const char *new_value, uint new_value_length TSRMLS_DC)
{
        const mbfl_encoding *encoding;

        if (!new_value || new_value_length == 0 || !(encoding = mbfl_name2encoding(new_value))) {
                /* falls back to UTF-8 if an unknown encoding name is given */
                encoding = mbfl_no2encoding(mbfl_no_encoding_utf8);
        }
        MBSTRG(internal_encoding) = encoding;
        MBSTRG(current_internal_encoding) = encoding;
#if HAVE_MBREGEX
        {
                const char *enc_name = new_value;
                if (FAILURE == php_mb_regex_set_default_mbctype(enc_name TSRMLS_CC)) {
                        /* falls back to UTF-8 if an unknown encoding name is given */
                        enc_name = "UTF-8";
                        php_mb_regex_set_default_mbctype(enc_name TSRMLS_CC);
                }
                php_mb_regex_set_mbctype(new_value TSRMLS_CC);
        }
#endif
        return SUCCESS;
}
/* }}} */

/* {{{ static PHP_INI_MH(OnUpdate_mbstring_internal_encoding) */
static PHP_INI_MH(OnUpdate_mbstring_internal_encoding)
{
        if (stage & (PHP_INI_STAGE_ACTIVATE | PHP_INI_STAGE_RUNTIME)) {
                php_error_docref("ref.mbstring" TSRMLS_CC, E_DEPRECATED, "Use of mbstring.internal_encoding is deprecated");
        }

        if (OnUpdateString(entry, new_value, new_value_length, mh_arg1, mh_arg2, mh_arg3, stage TSRMLS_CC) == FAILURE) {
                return FAILURE;
        }

        if (stage & (PHP_INI_STAGE_STARTUP | PHP_INI_STAGE_SHUTDOWN | PHP_INI_STAGE_RUNTIME)) {
                if (new_value_length) {
                        return _php_mb_ini_mbstring_internal_encoding_set(new_value, new_value_length TSRMLS_CC);
                } else {
                        return _php_mb_ini_mbstring_internal_encoding_set(get_internal_encoding(TSRMLS_C), strlen(get_internal_encoding(TSRMLS_C))+1 TSRMLS_CC);
                }
        } else {
                /* the corresponding mbstring globals needs to be set according to the
                 * ini value in the later stage because it never falls back to the
                 * default value if 1. no value for mbstring.internal_encoding is given,
                 * 2. mbstring.language directive is processed in per-dir or runtime
                 * context and 3. call to the handler for mbstring.language is done
                 * after mbstring.internal_encoding is handled. */
                return SUCCESS;
        }
}
/* }}} */

/* {{{ static PHP_INI_MH(OnUpdate_mbstring_substitute_character) */
static PHP_INI_MH(OnUpdate_mbstring_substitute_character)
{
        int c;
        char *endptr = NULL;

        if (new_value != NULL) {
                if (strcasecmp("none", new_value) == 0) {
                        MBSTRG(filter_illegal_mode) = MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE;
                        MBSTRG(current_filter_illegal_mode) = MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE;
                } else if (strcasecmp("long", new_value) == 0) {
                        MBSTRG(filter_illegal_mode) = MBFL_OUTPUTFILTER_ILLEGAL_MODE_LONG;
                        MBSTRG(current_filter_illegal_mode) = MBFL_OUTPUTFILTER_ILLEGAL_MODE_LONG;
                } else if (strcasecmp("entity", new_value) == 0) {
                        MBSTRG(filter_illegal_mode) = MBFL_OUTPUTFILTER_ILLEGAL_MODE_ENTITY;
                        MBSTRG(current_filter_illegal_mode) = MBFL_OUTPUTFILTER_ILLEGAL_MODE_ENTITY;
                } else {
                        MBSTRG(filter_illegal_mode) = MBFL_OUTPUTFILTER_ILLEGAL_MODE_CHAR;
                        MBSTRG(current_filter_illegal_mode) = MBFL_OUTPUTFILTER_ILLEGAL_MODE_CHAR;
                        if (new_value_length >0) {
                                c = strtol(new_value, &endptr, 0);
                                if (*endptr == '\0') {
                                        MBSTRG(filter_illegal_substchar) = c;
                                        MBSTRG(current_filter_illegal_substchar) = c;
                                }
                        }
                }
        } else {
                MBSTRG(filter_illegal_mode) = MBFL_OUTPUTFILTER_ILLEGAL_MODE_CHAR;
                MBSTRG(current_filter_illegal_mode) = MBFL_OUTPUTFILTER_ILLEGAL_MODE_CHAR;
                MBSTRG(filter_illegal_substchar) = 0x3f;        /* '?' */
                MBSTRG(current_filter_illegal_substchar) = 0x3f;        /* '?' */
        }

        return SUCCESS;
}
/* }}} */

/* {{{ static PHP_INI_MH(OnUpdate_mbstring_encoding_translation) */
static PHP_INI_MH(OnUpdate_mbstring_encoding_translation)
{
        if (new_value == NULL) {
                return FAILURE;
        }

        OnUpdateBool(entry, new_value, new_value_length, mh_arg1, mh_arg2, mh_arg3, stage TSRMLS_CC);

        if (MBSTRG(encoding_translation)) {
                sapi_unregister_post_entry(php_post_entries TSRMLS_CC);
                sapi_register_post_entries(mbstr_post_entries TSRMLS_CC);
        } else {
                sapi_unregister_post_entry(mbstr_post_entries TSRMLS_CC);
                sapi_register_post_entries(php_post_entries TSRMLS_CC);
        }

        return SUCCESS;
}
/* }}} */

/* {{{ static PHP_INI_MH(OnUpdate_mbstring_http_output_conv_mimetypes */
static PHP_INI_MH(OnUpdate_mbstring_http_output_conv_mimetypes)
{
        zval tmp;
        void *re = NULL;

        if (!new_value) {
                new_value = entry->orig_value;
                new_value_length = entry->orig_value_length;
        }
        php_trim(new_value, new_value_length, NULL, 0, &tmp, 3 TSRMLS_CC);

        if (Z_STRLEN(tmp) > 0) {
                if (!(re = _php_mb_compile_regex(Z_STRVAL(tmp) TSRMLS_CC))) {
                        zval_dtor(&tmp);
                        return FAILURE;
                }
        }

        if (MBSTRG(http_output_conv_mimetypes)) {
                _php_mb_free_regex(MBSTRG(http_output_conv_mimetypes));
        }

        MBSTRG(http_output_conv_mimetypes) = re;

        zval_dtor(&tmp);
        return SUCCESS;
}
/* }}} */
/* }}} */

/* {{{ php.ini directive registration */
PHP_INI_BEGIN()
        PHP_INI_ENTRY("mbstring.language", "neutral", PHP_INI_ALL, OnUpdate_mbstring_language)
        PHP_INI_ENTRY("mbstring.detect_order", NULL, PHP_INI_ALL, OnUpdate_mbstring_detect_order)
        PHP_INI_ENTRY("mbstring.http_input", NULL, PHP_INI_ALL, OnUpdate_mbstring_http_input)
        PHP_INI_ENTRY("mbstring.http_output", NULL, PHP_INI_ALL, OnUpdate_mbstring_http_output)
        STD_PHP_INI_ENTRY("mbstring.internal_encoding", NULL, PHP_INI_ALL, OnUpdate_mbstring_internal_encoding, internal_encoding_name, zend_mbstring_globals, mbstring_globals)
        PHP_INI_ENTRY("mbstring.substitute_character", NULL, PHP_INI_ALL, OnUpdate_mbstring_substitute_character)
        STD_PHP_INI_ENTRY("mbstring.func_overload", "0", 
        PHP_INI_SYSTEM, OnUpdateLong, func_overload, zend_mbstring_globals, mbstring_globals)

        STD_PHP_INI_BOOLEAN("mbstring.encoding_translation", "0",
                PHP_INI_SYSTEM | PHP_INI_PERDIR,
                OnUpdate_mbstring_encoding_translation, 
                encoding_translation, zend_mbstring_globals, mbstring_globals)                                   
        PHP_INI_ENTRY("mbstring.http_output_conv_mimetypes",
                "^(text/|application/xhtml\\+xml)",
                PHP_INI_ALL,
                OnUpdate_mbstring_http_output_conv_mimetypes)

        STD_PHP_INI_BOOLEAN("mbstring.strict_detection", "0",
                PHP_INI_ALL,
                OnUpdateLong,
                strict_detection, zend_mbstring_globals, mbstring_globals)
PHP_INI_END()
/* }}} */

/* {{{ module global initialize handler */
static PHP_GINIT_FUNCTION(mbstring)
{
        mbstring_globals->language = mbfl_no_language_uni;
        mbstring_globals->internal_encoding = NULL;
        mbstring_globals->current_internal_encoding = mbstring_globals->internal_encoding;
        mbstring_globals->http_output_encoding = &mbfl_encoding_pass;
        mbstring_globals->current_http_output_encoding = &mbfl_encoding_pass;
        mbstring_globals->http_input_identify = NULL;
        mbstring_globals->http_input_identify_get = NULL;
        mbstring_globals->http_input_identify_post = NULL;
        mbstring_globals->http_input_identify_cookie = NULL;
        mbstring_globals->http_input_identify_string = NULL;
        mbstring_globals->http_input_list = NULL;
        mbstring_globals->http_input_list_size = 0;
        mbstring_globals->detect_order_list = NULL;
        mbstring_globals->detect_order_list_size = 0;
        mbstring_globals->current_detect_order_list = NULL;
        mbstring_globals->current_detect_order_list_size = 0;
        mbstring_globals->default_detect_order_list = (enum mbfl_no_encoding *) php_mb_default_identify_list_neut;
        mbstring_globals->default_detect_order_list_size = sizeof(php_mb_default_identify_list_neut) / sizeof(php_mb_default_identify_list_neut[0]);
        mbstring_globals->filter_illegal_mode = MBFL_OUTPUTFILTER_ILLEGAL_MODE_CHAR;
        mbstring_globals->filter_illegal_substchar = 0x3f;      /* '?' */
        mbstring_globals->current_filter_illegal_mode = MBFL_OUTPUTFILTER_ILLEGAL_MODE_CHAR;
        mbstring_globals->current_filter_illegal_substchar = 0x3f;      /* '?' */
        mbstring_globals->illegalchars = 0;
        mbstring_globals->func_overload = 0;
        mbstring_globals->encoding_translation = 0;
        mbstring_globals->strict_detection = 0;
        mbstring_globals->outconv = NULL;
        mbstring_globals->http_output_conv_mimetypes = NULL;
#if HAVE_MBREGEX
        mbstring_globals->mb_regex_globals = php_mb_regex_globals_alloc(TSRMLS_C);
#endif
}
/* }}} */

/* {{{ PHP_GSHUTDOWN_FUNCTION */
static PHP_GSHUTDOWN_FUNCTION(mbstring)
{
        if (mbstring_globals->http_input_list) {
                free(mbstring_globals->http_input_list);
        }
        if (mbstring_globals->detect_order_list) {
                free(mbstring_globals->detect_order_list);
        }
        if (mbstring_globals->http_output_conv_mimetypes) {
                _php_mb_free_regex(mbstring_globals->http_output_conv_mimetypes);
        }
#if HAVE_MBREGEX
        php_mb_regex_globals_free(mbstring_globals->mb_regex_globals TSRMLS_CC);
#endif
}
/* }}} */

/* {{{ PHP_MINIT_FUNCTION(mbstring) */
PHP_MINIT_FUNCTION(mbstring)
{
        __mbfl_allocators = &_php_mb_allocators;

        REGISTER_INI_ENTRIES();

        /* This is a global handler. Should not be set in a per-request handler. */
        sapi_register_treat_data(mbstr_treat_data TSRMLS_CC);

        /* Post handlers are stored in the thread-local context. */
        if (MBSTRG(encoding_translation)) {
                sapi_register_post_entries(mbstr_post_entries TSRMLS_CC);
        }

        REGISTER_LONG_CONSTANT("MB_OVERLOAD_MAIL", MB_OVERLOAD_MAIL, CONST_CS | CONST_PERSISTENT);
        REGISTER_LONG_CONSTANT("MB_OVERLOAD_STRING", MB_OVERLOAD_STRING, CONST_CS | CONST_PERSISTENT);
        REGISTER_LONG_CONSTANT("MB_OVERLOAD_REGEX", MB_OVERLOAD_REGEX, CONST_CS | CONST_PERSISTENT);

        REGISTER_LONG_CONSTANT("MB_CASE_UPPER", PHP_UNICODE_CASE_UPPER, CONST_CS | CONST_PERSISTENT);
        REGISTER_LONG_CONSTANT("MB_CASE_LOWER", PHP_UNICODE_CASE_LOWER, CONST_CS | CONST_PERSISTENT);
        REGISTER_LONG_CONSTANT("MB_CASE_TITLE", PHP_UNICODE_CASE_TITLE, CONST_CS | CONST_PERSISTENT);

#if HAVE_MBREGEX
        PHP_MINIT(mb_regex) (INIT_FUNC_ARGS_PASSTHRU);
#endif

        if (FAILURE == zend_multibyte_set_functions(&php_mb_zend_multibyte_functions TSRMLS_CC)) {
                return FAILURE;
        }

        php_rfc1867_set_multibyte_callbacks(
                php_mb_encoding_translation,
                php_mb_gpc_get_detect_order,
                php_mb_gpc_set_input_encoding,
                php_mb_rfc1867_getword,
                php_mb_rfc1867_getword_conf,
                php_mb_rfc1867_basename);

        return SUCCESS;
}
/* }}} */

/* {{{ PHP_MSHUTDOWN_FUNCTION(mbstring) */
PHP_MSHUTDOWN_FUNCTION(mbstring)
{
        UNREGISTER_INI_ENTRIES();

#if HAVE_MBREGEX
        PHP_MSHUTDOWN(mb_regex) (INIT_FUNC_ARGS_PASSTHRU);
#endif

        return SUCCESS;
}
/* }}} */

/* {{{ PHP_RINIT_FUNCTION(mbstring) */
PHP_RINIT_FUNCTION(mbstring)
{
        zend_function *func, *orig;
        const struct mb_overload_def *p;

        MBSTRG(current_internal_encoding) = MBSTRG(internal_encoding);
        MBSTRG(current_http_output_encoding) = MBSTRG(http_output_encoding);
        MBSTRG(current_filter_illegal_mode) = MBSTRG(filter_illegal_mode);
        MBSTRG(current_filter_illegal_substchar) = MBSTRG(filter_illegal_substchar);

        MBSTRG(illegalchars) = 0;

        php_mb_populate_current_detect_order_list(TSRMLS_C);

        /* override original function. */
        if (MBSTRG(func_overload)){
                p = &(mb_ovld[0]);
                
                while (p->type > 0) {
                        if ((MBSTRG(func_overload) & p->type) == p->type && 
                                zend_hash_find(EG(function_table), p->save_func,
                                        strlen(p->save_func)+1, (void **)&orig) != SUCCESS) {

                                zend_hash_find(EG(function_table), p->ovld_func, strlen(p->ovld_func)+1 , (void **)&func);
                                
                                if (zend_hash_find(EG(function_table), p->orig_func, strlen(p->orig_func)+1, (void **)&orig) != SUCCESS) {
                                        php_error_docref("ref.mbstring" TSRMLS_CC, E_WARNING, "mbstring couldn't find function %s.", p->orig_func);
                                        return FAILURE;
                                } else {
                                        zend_hash_add(EG(function_table), p->save_func, strlen(p->save_func)+1, orig, sizeof(zend_function), NULL);

                                        if (zend_hash_update(EG(function_table), p->orig_func, strlen(p->orig_func)+1, func, sizeof(zend_function), 
                                                NULL) == FAILURE) {
                                                php_error_docref("ref.mbstring" TSRMLS_CC, E_WARNING, "mbstring couldn't replace function %s.", p->orig_func);
                                                return FAILURE;
                                        }
                                }
                        }
                        p++;
                }
        }
#if HAVE_MBREGEX
        PHP_RINIT(mb_regex) (INIT_FUNC_ARGS_PASSTHRU);
#endif
        zend_multibyte_set_internal_encoding((const zend_encoding *)MBSTRG(internal_encoding) TSRMLS_CC);

        return SUCCESS;
}
/* }}} */

/* {{{ PHP_RSHUTDOWN_FUNCTION(mbstring) */
PHP_RSHUTDOWN_FUNCTION(mbstring)
{
        const struct mb_overload_def *p;
        zend_function *orig;

        if (MBSTRG(current_detect_order_list) != NULL) {
                efree(MBSTRG(current_detect_order_list));
                MBSTRG(current_detect_order_list) = NULL;
                MBSTRG(current_detect_order_list_size) = 0;
        }
        if (MBSTRG(outconv) != NULL) {
                MBSTRG(illegalchars) += mbfl_buffer_illegalchars(MBSTRG(outconv));
                mbfl_buffer_converter_delete(MBSTRG(outconv));
                MBSTRG(outconv) = NULL;
        }

        /* clear http input identification. */
        MBSTRG(http_input_identify) = NULL;
        MBSTRG(http_input_identify_post) = NULL;
        MBSTRG(http_input_identify_get) = NULL;
        MBSTRG(http_input_identify_cookie) = NULL;
        MBSTRG(http_input_identify_string) = NULL;

        /*  clear overloaded function. */
        if (MBSTRG(func_overload)){
                p = &(mb_ovld[0]);
                while (p->type > 0) {
                        if ((MBSTRG(func_overload) & p->type) == p->type && 
                                zend_hash_find(EG(function_table), p->save_func,
                                                           strlen(p->save_func)+1, (void **)&orig) == SUCCESS) {
                                
                                zend_hash_update(EG(function_table), p->orig_func, strlen(p->orig_func)+1, orig, sizeof(zend_function), NULL);
                                zend_hash_del(EG(function_table), p->save_func, strlen(p->save_func)+1);
                        }
                        p++;
                }
        }

#if HAVE_MBREGEX
        PHP_RSHUTDOWN(mb_regex) (INIT_FUNC_ARGS_PASSTHRU);
#endif

        return SUCCESS;
}
/* }}} */

/* {{{ PHP_MINFO_FUNCTION(mbstring) */
PHP_MINFO_FUNCTION(mbstring)
{
        php_info_print_table_start();
        php_info_print_table_row(2, "Multibyte Support", "enabled");
        php_info_print_table_row(2, "Multibyte string engine", "libmbfl");
        php_info_print_table_row(2, "HTTP input encoding translation", MBSTRG(encoding_translation) ? "enabled": "disabled");   
        {
                char tmp[256];
                snprintf(tmp, sizeof(tmp), "%d.%d.%d", MBFL_VERSION_MAJOR, MBFL_VERSION_MINOR, MBFL_VERSION_TEENY);
                php_info_print_table_row(2, "libmbfl version", tmp);
        }
        php_info_print_table_end();

        php_info_print_table_start();
        php_info_print_table_header(1, "mbstring extension makes use of \"streamable kanji code filter and converter\", which is distributed under the GNU Lesser General Public License version 2.1.");
        php_info_print_table_end();

#if HAVE_MBREGEX
        PHP_MINFO(mb_regex)(ZEND_MODULE_INFO_FUNC_ARGS_PASSTHRU);
#endif

        DISPLAY_INI_ENTRIES();
}
/* }}} */

/* {{{ proto string mb_language([string language])
   Sets the current language or Returns the current language as a string */
PHP_FUNCTION(mb_language)
{
        char *name = NULL;
        int name_len = 0;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &name, &name_len) == FAILURE) {
                return;
        }
        if (name == NULL) {
                RETVAL_STRING((char *)mbfl_no_language2name(MBSTRG(language)), 1);
        } else {
                if (FAILURE == zend_alter_ini_entry(
                                "mbstring.language", sizeof("mbstring.language"),
                                name, name_len, PHP_INI_USER, PHP_INI_STAGE_RUNTIME)) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown language \"%s\"", name);
                        RETVAL_FALSE;
                } else {
                        RETVAL_TRUE;
                }
        }
}
/* }}} */

/* {{{ proto string mb_internal_encoding([string encoding])
   Sets the current internal encoding or Returns the current internal encoding as a string */
PHP_FUNCTION(mb_internal_encoding)
{
        const char *name = NULL;
        int name_len;
        const mbfl_encoding *encoding;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &name, &name_len) == FAILURE) {
                RETURN_FALSE;
        }
        if (name == NULL) {
                name = MBSTRG(current_internal_encoding) ? MBSTRG(current_internal_encoding)->name: NULL;
                if (name != NULL) {
                        RETURN_STRING(name, 1);
                } else {
                        RETURN_FALSE;
                }
        } else {
                encoding = mbfl_name2encoding(name);
                if (!encoding) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", name);
                        RETURN_FALSE;
                } else {
                        MBSTRG(current_internal_encoding) = encoding;
                        RETURN_TRUE;
                }
        }
}
/* }}} */

/* {{{ proto mixed mb_http_input([string type])
   Returns the input encoding */
PHP_FUNCTION(mb_http_input)
{
        char *typ = NULL;
        int typ_len;
        int retname;
        char *list, *temp;
        const mbfl_encoding *result = NULL;

        retname = 1;
        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &typ, &typ_len) == FAILURE) {
                RETURN_FALSE;
        }
        if (typ == NULL) {
                result = MBSTRG(http_input_identify);
        } else {
                switch (*typ) {
                case 'G':
                case 'g':
                        result = MBSTRG(http_input_identify_get);
                        break;
                case 'P':
                case 'p':
                        result = MBSTRG(http_input_identify_post);
                        break;
                case 'C':
                case 'c':
                        result = MBSTRG(http_input_identify_cookie);
                        break;
                case 'S':
                case 's':
                        result = MBSTRG(http_input_identify_string);
                        break;
                case 'I':
                case 'i':
                        {
                                const mbfl_encoding **entry = MBSTRG(http_input_list);
                                const size_t n = MBSTRG(http_input_list_size);
                                size_t i;
                                array_init(return_value);
                                for (i = 0; i < n; i++) {
                                        add_next_index_string(return_value, (*entry)->name, 1);
                                        entry++;
                                }
                                retname = 0;
                        }
                        break;
                case 'L':
                case 'l':
                        {
                                const mbfl_encoding **entry = MBSTRG(http_input_list);
                                const size_t n = MBSTRG(http_input_list_size);
                                size_t i;
                                list = NULL;
                                for (i = 0; i < n; i++) {
                                        if (list) {
                                                temp = list;
                                                spprintf(&list, 0, "%s,%s", temp, (*entry)->name);
                                                efree(temp);
                                                if (!list) { 
                                                        break;
                                                }
                                        } else {
                                                list = estrdup((*entry)->name);
                                        }
                                        entry++;
                                }
                        }
                        if (!list) {
                                RETURN_FALSE;
                        }
                        RETVAL_STRING(list, 0);
                        retname = 0;
                        break;
                default:
                        result = MBSTRG(http_input_identify);
                        break;
                }
        }

        if (retname) {
                if (result) {
                        RETVAL_STRING(result->name, 1);
                } else {
                        RETVAL_FALSE;
                }
        }
}
/* }}} */

/* {{{ proto string mb_http_output([string encoding])
   Sets the current output_encoding or returns the current output_encoding as a string */
PHP_FUNCTION(mb_http_output)
{
        const char *name = NULL;
        int name_len;
        const mbfl_encoding *encoding;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", (char **)&name, &name_len) == FAILURE) {
                RETURN_FALSE;
        }

        if (name == NULL) {
                name = MBSTRG(current_http_output_encoding) ? MBSTRG(current_http_output_encoding)->name: NULL;
                if (name != NULL) {
                        RETURN_STRING(name, 1);
                } else {
                        RETURN_FALSE;
                }
        } else {
                encoding = mbfl_name2encoding(name);
                if (!encoding) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", name);
                        RETURN_FALSE;
                } else {
                        MBSTRG(current_http_output_encoding) = encoding;
                        RETURN_TRUE;
                }
        }
}
/* }}} */

/* {{{ proto bool|array mb_detect_order([mixed encoding-list])
   Sets the current detect_order or Return the current detect_order as a array */
PHP_FUNCTION(mb_detect_order)
{
        zval **arg1 = NULL;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|Z", &arg1) == FAILURE) {
                return;
        }

        if (!arg1) {
                size_t i;
                size_t n = MBSTRG(current_detect_order_list_size);
                const mbfl_encoding **entry = MBSTRG(current_detect_order_list);
                array_init(return_value);
                for (i = 0; i < n; i++) {
                        add_next_index_string(return_value, (*entry)->name, 1);
                        entry++;
                }
        } else {
                const mbfl_encoding **list = NULL;
                size_t size = 0;
                switch (Z_TYPE_PP(arg1)) {
                case IS_ARRAY:
                        if (FAILURE == php_mb_parse_encoding_array(*arg1, &list, &size, 0 TSRMLS_CC)) {
                                if (list) {
                                        efree(list);
                                }
                                RETURN_FALSE;
                        }
                        break;
                default:
                        convert_to_string_ex(arg1);
                        if (FAILURE == php_mb_parse_encoding_list(Z_STRVAL_PP(arg1), Z_STRLEN_PP(arg1), &list, &size, 0 TSRMLS_CC)) {
                                if (list) {
                                        efree(list);
                                }
                                RETURN_FALSE;
                        }
                        break;
                }

                if (list == NULL) {
                        RETURN_FALSE;
                }

                if (MBSTRG(current_detect_order_list)) {
                        efree(MBSTRG(current_detect_order_list));
                }
                MBSTRG(current_detect_order_list) = list;
                MBSTRG(current_detect_order_list_size) = size;
                RETURN_TRUE;
        }
}
/* }}} */

/* {{{ proto mixed mb_substitute_character([mixed substchar])
   Sets the current substitute_character or returns the current substitute_character */
PHP_FUNCTION(mb_substitute_character)
{
        zval **arg1 = NULL;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|Z", &arg1) == FAILURE) {
                return;
        }

        if (!arg1) {
                if (MBSTRG(current_filter_illegal_mode) == MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
                        RETURN_STRING("none", 1);
                } else if (MBSTRG(current_filter_illegal_mode) == MBFL_OUTPUTFILTER_ILLEGAL_MODE_LONG) {
                        RETURN_STRING("long", 1);
                } else if (MBSTRG(current_filter_illegal_mode) == MBFL_OUTPUTFILTER_ILLEGAL_MODE_ENTITY) {
                        RETURN_STRING("entity", 1);
                } else {
                        RETURN_LONG(MBSTRG(current_filter_illegal_substchar));
                }
        } else {
                RETVAL_TRUE;

                switch (Z_TYPE_PP(arg1)) {
                case IS_STRING:
                        if (strncasecmp("none", Z_STRVAL_PP(arg1), Z_STRLEN_PP(arg1)) == 0) {
                                MBSTRG(current_filter_illegal_mode) = MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE;
                        } else if (strncasecmp("long", Z_STRVAL_PP(arg1), Z_STRLEN_PP(arg1)) == 0) {
                                MBSTRG(current_filter_illegal_mode) = MBFL_OUTPUTFILTER_ILLEGAL_MODE_LONG;
                        } else if (strncasecmp("entity", Z_STRVAL_PP(arg1), Z_STRLEN_PP(arg1)) == 0) {
                                MBSTRG(current_filter_illegal_mode) = MBFL_OUTPUTFILTER_ILLEGAL_MODE_ENTITY;
                        } else {
                                convert_to_long_ex(arg1);

                                if (Z_LVAL_PP(arg1) < 0xffff && Z_LVAL_PP(arg1) > 0x0) {
                                        MBSTRG(current_filter_illegal_mode) = MBFL_OUTPUTFILTER_ILLEGAL_MODE_CHAR;
                                        MBSTRG(current_filter_illegal_substchar) = Z_LVAL_PP(arg1);
                                } else {
                                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown character.");
                                        RETURN_FALSE;
                                }
                        }
                        break;
                default:
                        convert_to_long_ex(arg1);
                        if (Z_LVAL_PP(arg1) < 0xffff && Z_LVAL_PP(arg1) > 0x0) {
                                MBSTRG(current_filter_illegal_mode) = MBFL_OUTPUTFILTER_ILLEGAL_MODE_CHAR;
                                MBSTRG(current_filter_illegal_substchar) = Z_LVAL_PP(arg1);
                        } else {
                                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown character.");
                                RETURN_FALSE;
                        }
                        break;
                }
        }
}
/* }}} */

/* {{{ proto string mb_preferred_mime_name(string encoding)
   Return the preferred MIME name (charset) as a string */
PHP_FUNCTION(mb_preferred_mime_name)
{
        enum mbfl_no_encoding no_encoding;
        char *name = NULL;
        int name_len;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &name, &name_len) == FAILURE) {
                return;
        } else {
                no_encoding = mbfl_name2no_encoding(name);
                if (no_encoding == mbfl_no_encoding_invalid) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", name);
                        RETVAL_FALSE;
                } else {
                        const char *preferred_name = mbfl_no2preferred_mime_name(no_encoding);
                        if (preferred_name == NULL || *preferred_name == '\0') {
                                php_error_docref(NULL TSRMLS_CC, E_WARNING, "No MIME preferred name corresponding to \"%s\"", name);
                                RETVAL_FALSE;
                        } else {
                                RETVAL_STRING((char *)preferred_name, 1);
                        }
                }
        }
}
/* }}} */

#define IS_SJIS1(c) ((((c)>=0x81 && (c)<=0x9f) || ((c)>=0xe0 && (c)<=0xf5)) ? 1 : 0)
#define IS_SJIS2(c) ((((c)>=0x40 && (c)<=0x7e) || ((c)>=0x80 && (c)<=0xfc)) ? 1 : 0)

/* {{{ proto bool mb_parse_str(string encoded_string [, array result])
   Parses GET/POST/COOKIE data and sets global variables */
PHP_FUNCTION(mb_parse_str)
{
        zval *track_vars_array = NULL;
        char *encstr = NULL;
        int encstr_len;
        php_mb_encoding_handler_info_t info;
        const mbfl_encoding *detected;

        track_vars_array = NULL;
        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|z", &encstr, &encstr_len, &track_vars_array) == FAILURE) {
                return;
        }

        if (track_vars_array != NULL) {
                /* Clear out the array */
                zval_dtor(track_vars_array);
                array_init(track_vars_array);
        }

        encstr = estrndup(encstr, encstr_len);

        info.data_type              = PARSE_STRING;
        info.separator              = PG(arg_separator).input; 
        info.report_errors          = 1;
        info.to_encoding            = MBSTRG(current_internal_encoding);
        info.to_language            = MBSTRG(language);
        info.from_encodings         = MBSTRG(http_input_list);
        info.num_from_encodings     = MBSTRG(http_input_list_size); 
        info.from_language          = MBSTRG(language);

        if (track_vars_array != NULL) {
                detected = _php_mb_encoding_handler_ex(&info, track_vars_array, encstr TSRMLS_CC);
        } else {
                zval tmp;
                if (!EG(active_symbol_table)) {
                        zend_rebuild_symbol_table(TSRMLS_C);
                }
                Z_ARRVAL(tmp) = EG(active_symbol_table);                
                detected = _php_mb_encoding_handler_ex(&info, &tmp, encstr TSRMLS_CC);          
        }

        MBSTRG(http_input_identify) = detected;

        RETVAL_BOOL(detected);

        if (encstr != NULL) efree(encstr);
}
/* }}} */

/* {{{ proto string mb_output_handler(string contents, int status)
   Returns string in output buffer converted to the http_output encoding */
PHP_FUNCTION(mb_output_handler)
{
        char *arg_string;
        int arg_string_len;
        long arg_status;
        mbfl_string string, result;
        const char *charset;
        char *p;
        const mbfl_encoding *encoding;
        int last_feed, len;
        unsigned char send_text_mimetype = 0;
        char *s, *mimetype = NULL;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sl", &arg_string, &arg_string_len, &arg_status) == FAILURE) {
                return;
        }

        encoding = MBSTRG(current_http_output_encoding);

        /* start phase only */
        if ((arg_status & PHP_OUTPUT_HANDLER_START) != 0) {
                /* delete the converter just in case. */
                if (MBSTRG(outconv)) {
                        MBSTRG(illegalchars) += mbfl_buffer_illegalchars(MBSTRG(outconv));
                        mbfl_buffer_converter_delete(MBSTRG(outconv));
                        MBSTRG(outconv) = NULL;
                }
                if (encoding == &mbfl_encoding_pass) {
                        RETURN_STRINGL(arg_string, arg_string_len, 1);
                }

                /* analyze mime type */
                if (SG(sapi_headers).mimetype &&
                        _php_mb_match_regex(
                                MBSTRG(http_output_conv_mimetypes),
                                SG(sapi_headers).mimetype,
                                strlen(SG(sapi_headers).mimetype))) {
                        if ((s = strchr(SG(sapi_headers).mimetype,';')) == NULL){
                                mimetype = estrdup(SG(sapi_headers).mimetype);
                        } else {
                                mimetype = estrndup(SG(sapi_headers).mimetype,s-SG(sapi_headers).mimetype);
                        }
                        send_text_mimetype = 1;
                } else if (SG(sapi_headers).send_default_content_type) {
                        mimetype = SG(default_mimetype) ? SG(default_mimetype) : SAPI_DEFAULT_MIMETYPE;
                }

                /* if content-type is not yet set, set it and activate the converter */
                if (SG(sapi_headers).send_default_content_type || send_text_mimetype) {
                        charset = encoding->mime_name;
                        if (charset) {
                                len = spprintf( &p, 0, "Content-Type: %s; charset=%s",  mimetype, charset ); 
                                if (sapi_add_header(p, len, 0) != FAILURE) {
                                        SG(sapi_headers).send_default_content_type = 0;
                                }
                        }
                        /* activate the converter */
                        MBSTRG(outconv) = mbfl_buffer_converter_new2(MBSTRG(current_internal_encoding), encoding, 0);
                        if (send_text_mimetype){
                                efree(mimetype);
                        }
                }
        }

        /* just return if the converter is not activated. */
        if (MBSTRG(outconv) == NULL) {
                RETURN_STRINGL(arg_string, arg_string_len, 1);
        }

        /* flag */
        last_feed = ((arg_status & PHP_OUTPUT_HANDLER_END) != 0);
        /* mode */
        mbfl_buffer_converter_illegal_mode(MBSTRG(outconv), MBSTRG(current_filter_illegal_mode));
        mbfl_buffer_converter_illegal_substchar(MBSTRG(outconv), MBSTRG(current_filter_illegal_substchar));
 
        /* feed the string */
        mbfl_string_init(&string);
        /* these are not needed. convd has encoding info.
        string.no_language = MBSTRG(language);
        string.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;
        */
        string.val = (unsigned char *)arg_string;
        string.len = arg_string_len;
        mbfl_buffer_converter_feed(MBSTRG(outconv), &string);
        if (last_feed) {
                mbfl_buffer_converter_flush(MBSTRG(outconv));
        } 
        /* get the converter output, and return it */
        mbfl_buffer_converter_result(MBSTRG(outconv), &result);
        RETVAL_STRINGL((char *)result.val, result.len, 0);              /* the string is already strdup()'ed */
 
        /* delete the converter if it is the last feed. */
        if (last_feed) {
                MBSTRG(illegalchars) += mbfl_buffer_illegalchars(MBSTRG(outconv));
                mbfl_buffer_converter_delete(MBSTRG(outconv));
                MBSTRG(outconv) = NULL;
        }
}
/* }}} */

/* {{{ proto int mb_strlen(string str [, string encoding])
   Get character numbers of a string */
PHP_FUNCTION(mb_strlen)
{
        int n;
        mbfl_string string;
        char *enc_name = NULL;
        int enc_name_len;

        mbfl_string_init(&string);

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|s", (char **)&string.val, &string.len, &enc_name, &enc_name_len) == FAILURE) {
                RETURN_FALSE;
        }

        string.no_language = MBSTRG(language);
        if (enc_name == NULL) {
                string.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;
        } else {
                string.no_encoding = mbfl_name2no_encoding(enc_name);
                if (string.no_encoding == mbfl_no_encoding_invalid) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", enc_name);
                        RETURN_FALSE;
                }
        }

        n = mbfl_strlen(&string);
        if (n >= 0) {
                RETVAL_LONG(n);
        } else {
                RETVAL_FALSE;
        }
}
/* }}} */

/* {{{ proto int mb_strpos(string haystack, string needle [, int offset [, string encoding]])
   Find position of first occurrence of a string within another */
PHP_FUNCTION(mb_strpos)
{
        int n, reverse = 0;
        long offset;
        mbfl_string haystack, needle;
        char *enc_name = NULL;
        int enc_name_len;

        mbfl_string_init(&haystack);
        mbfl_string_init(&needle);
        haystack.no_language = MBSTRG(language);
        haystack.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;
        needle.no_language = MBSTRG(language);
        needle.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;
        offset = 0;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|ls", (char **)&haystack.val, &haystack.len, (char **)&needle.val, &needle.len, &offset, &enc_name, &enc_name_len) == FAILURE) {
                RETURN_FALSE;
        }

        if (enc_name != NULL) {
                haystack.no_encoding = needle.no_encoding = mbfl_name2no_encoding(enc_name);
                if (haystack.no_encoding == mbfl_no_encoding_invalid) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", enc_name);
                        RETURN_FALSE;
                }
        }

        if (offset < 0 || offset > mbfl_strlen(&haystack)) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Offset not contained in string");
                RETURN_FALSE;
        }
        if (needle.len == 0) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Empty delimiter");
                RETURN_FALSE;
        }

        n = mbfl_strpos(&haystack, &needle, offset, reverse);
        if (n >= 0) {
                RETVAL_LONG(n);
        } else {
                switch (-n) {
                case 1:
                        break;
                case 2:
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Needle has not positive length");
                        break;
                case 4:
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding or conversion error");
                        break;
                case 8:
                        php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Argument is empty");
                        break;
                default:
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown error in mb_strpos");
                        break;
                }
                RETVAL_FALSE;
        }
}
/* }}} */

/* {{{ proto int mb_strrpos(string haystack, string needle [, int offset [, string encoding]])
   Find position of last occurrence of a string within another */
PHP_FUNCTION(mb_strrpos)
{
        int n;
        mbfl_string haystack, needle;
        char *enc_name = NULL;
        int enc_name_len;
        zval **zoffset = NULL;
        long offset = 0, str_flg;
        char *enc_name2 = NULL;
        int enc_name_len2;

        mbfl_string_init(&haystack);
        mbfl_string_init(&needle);
        haystack.no_language = MBSTRG(language);
        haystack.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;
        needle.no_language = MBSTRG(language);
        needle.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|Zs", (char **)&haystack.val, &haystack.len, (char **)&needle.val, &needle.len, &zoffset, &enc_name, &enc_name_len) == FAILURE) {
                RETURN_FALSE;
        }

        if (zoffset) {
                if (Z_TYPE_PP(zoffset) == IS_STRING) {
                        enc_name2     = Z_STRVAL_PP(zoffset);
                        enc_name_len2 = Z_STRLEN_PP(zoffset);
                        str_flg       = 1;

                        if (enc_name2 != NULL) {
                                switch (*enc_name2) {
                                case '0':
                                case '1':
                                case '2':
                                case '3':
                                case '4':
                                case '5':
                                case '6':
                                case '7':
                                case '8':
                                case '9':
                                case ' ':
                                case '-':
                                case '.':
                                        break;
                                default :
                                        str_flg = 0;
                                        break;
                                }
                        }

                        if (str_flg) {
                                convert_to_long_ex(zoffset);
                                offset   = Z_LVAL_PP(zoffset);
                        } else {
                                enc_name     = enc_name2;
                                enc_name_len = enc_name_len2;
                        }
                } else {
                        convert_to_long_ex(zoffset);
                        offset = Z_LVAL_PP(zoffset);
                }
        }

        if (enc_name != NULL) {
                haystack.no_encoding = needle.no_encoding = mbfl_name2no_encoding(enc_name);
                if (haystack.no_encoding == mbfl_no_encoding_invalid) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", enc_name);
                        RETURN_FALSE;
                }
        }

        if (haystack.len <= 0) {
                RETURN_FALSE;
        }
        if (needle.len <= 0) {
                RETURN_FALSE;
        }

        {
                int haystack_char_len = mbfl_strlen(&haystack);
                if ((offset > 0 && offset > haystack_char_len) ||
                        (offset < 0 && -offset > haystack_char_len)) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Offset is greater than the length of haystack string");
                        RETURN_FALSE;
                }
        }

        n = mbfl_strpos(&haystack, &needle, offset, 1);
        if (n >= 0) {
                RETVAL_LONG(n);
        } else {
                RETVAL_FALSE;
        }
}
/* }}} */

/* {{{ proto int mb_stripos(string haystack, string needle [, int offset [, string encoding]])
   Finds position of first occurrence of a string within another, case insensitive */
PHP_FUNCTION(mb_stripos)
{
        int n;
        long offset;
        mbfl_string haystack, needle;
        const char *from_encoding = MBSTRG(current_internal_encoding)->mime_name;
        int from_encoding_len;
        n = -1;
        offset = 0;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|ls", (char **)&haystack.val, (int *)&haystack.len, (char **)&needle.val, (int *)&needle.len, &offset, &from_encoding, &from_encoding_len) == FAILURE) {
                RETURN_FALSE;
        }
        if (needle.len == 0) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Empty delimiter");
                RETURN_FALSE;
        }
        n = php_mb_stripos(0, (char *)haystack.val, haystack.len, (char *)needle.val, needle.len, offset, from_encoding TSRMLS_CC);

        if (n >= 0) {
                RETVAL_LONG(n);
        } else {
                RETVAL_FALSE;
        }
}
/* }}} */

/* {{{ proto int mb_strripos(string haystack, string needle [, int offset [, string encoding]])
   Finds position of last occurrence of a string within another, case insensitive */
PHP_FUNCTION(mb_strripos)
{
        int n;
        long offset;
        mbfl_string haystack, needle;
        const char *from_encoding = MBSTRG(current_internal_encoding)->mime_name;
        int from_encoding_len;
        n = -1;
        offset = 0;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|ls", (char **)&haystack.val, (int *)&haystack.len, (char **)&needle.val, (int *)&needle.len, &offset, &from_encoding, &from_encoding_len) == FAILURE) {
                RETURN_FALSE;
        }

        n = php_mb_stripos(1, (char *)haystack.val, haystack.len, (char *)needle.val, needle.len, offset, from_encoding TSRMLS_CC);

        if (n >= 0) {
                RETVAL_LONG(n);
        } else {
                RETVAL_FALSE;
        }
}
/* }}} */

/* {{{ proto string mb_strstr(string haystack, string needle[, bool part[, string encoding]])
   Finds first occurrence of a string within another */
PHP_FUNCTION(mb_strstr)
{
        int n, len, mblen;
        mbfl_string haystack, needle, result, *ret = NULL;
        char *enc_name = NULL;
        int enc_name_len;
        zend_bool part = 0;

        mbfl_string_init(&haystack);
        mbfl_string_init(&needle);
        haystack.no_language = MBSTRG(language);
        haystack.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;
        needle.no_language = MBSTRG(language);
        needle.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|bs", (char **)&haystack.val, (int *)&haystack.len, (char **)&needle.val, (int *)&needle.len, &part, &enc_name, &enc_name_len) == FAILURE) {
                RETURN_FALSE;
        }

        if (enc_name != NULL) {
                haystack.no_encoding = needle.no_encoding = mbfl_name2no_encoding(enc_name);
                if (haystack.no_encoding == mbfl_no_encoding_invalid) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", enc_name);
                        RETURN_FALSE;
                }
        }

        if (needle.len <= 0) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Empty delimiter");
                RETURN_FALSE;
        }
        n = mbfl_strpos(&haystack, &needle, 0, 0);
        if (n >= 0) {
                mblen = mbfl_strlen(&haystack);
                if (part) {
                        ret = mbfl_substr(&haystack, &result, 0, n);
                        if (ret != NULL) {
                                RETVAL_STRINGL((char *)ret->val, ret->len, 0);
                        } else {
                                RETVAL_FALSE;
                        }
                } else {
                        len = (mblen - n);
                        ret = mbfl_substr(&haystack, &result, n, len);
                        if (ret != NULL) {
                                RETVAL_STRINGL((char *)ret->val, ret->len, 0);
                        } else {
                                RETVAL_FALSE;
                        }
                }
        } else {
                RETVAL_FALSE;
        }
}
/* }}} */

/* {{{ proto string mb_strrchr(string haystack, string needle[, bool part[, string encoding]])
   Finds the last occurrence of a character in a string within another */
PHP_FUNCTION(mb_strrchr)
{
        int n, len, mblen;
        mbfl_string haystack, needle, result, *ret = NULL;
        char *enc_name = NULL;
        int enc_name_len;
        zend_bool part = 0;

        mbfl_string_init(&haystack);
        mbfl_string_init(&needle);
        haystack.no_language = MBSTRG(language);
        haystack.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;
        needle.no_language = MBSTRG(language);
        needle.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|bs", (char **)&haystack.val, &haystack.len, (char **)&needle.val, &needle.len, &part, &enc_name, &enc_name_len) == FAILURE) {
                RETURN_FALSE;
        }

        if (enc_name != NULL) {
                haystack.no_encoding = needle.no_encoding = mbfl_name2no_encoding(enc_name);
                if (haystack.no_encoding == mbfl_no_encoding_invalid) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", enc_name);
                        RETURN_FALSE;
                }
        }

        if (haystack.len <= 0) {
                RETURN_FALSE;
        }
        if (needle.len <= 0) {
                RETURN_FALSE;
        }
        n = mbfl_strpos(&haystack, &needle, 0, 1);
        if (n >= 0) {
                mblen = mbfl_strlen(&haystack);
                if (part) {
                        ret = mbfl_substr(&haystack, &result, 0, n);
                        if (ret != NULL) {
                                RETVAL_STRINGL((char *)ret->val, ret->len, 0);
                        } else {
                                RETVAL_FALSE;
                        }
                } else {
                        len = (mblen - n);
                        ret = mbfl_substr(&haystack, &result, n, len);
                        if (ret != NULL) {
                                RETVAL_STRINGL((char *)ret->val, ret->len, 0);
                        } else {
                                RETVAL_FALSE;
                        }
                }
        } else {
                RETVAL_FALSE;
        }
}
/* }}} */

/* {{{ proto string mb_stristr(string haystack, string needle[, bool part[, string encoding]])
   Finds first occurrence of a string within another, case insensitive */
PHP_FUNCTION(mb_stristr)
{
        zend_bool part = 0;
        unsigned int from_encoding_len, len, mblen;
        int n;
        mbfl_string haystack, needle, result, *ret = NULL;
        const char *from_encoding = MBSTRG(current_internal_encoding)->mime_name;
        mbfl_string_init(&haystack);
        mbfl_string_init(&needle);
        haystack.no_language = MBSTRG(language);
        haystack.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;
        needle.no_language = MBSTRG(language);
        needle.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;


        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|bs", (char **)&haystack.val, &haystack.len, (char **)&needle.val, &needle.len, &part, &from_encoding, &from_encoding_len) == FAILURE) {
                RETURN_FALSE;
        }

        if (!needle.len) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Empty delimiter");
                RETURN_FALSE;
        }

        haystack.no_encoding = needle.no_encoding = mbfl_name2no_encoding(from_encoding);
        if (haystack.no_encoding == mbfl_no_encoding_invalid) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", from_encoding);
                RETURN_FALSE;
        }

        n = php_mb_stripos(0, (char *)haystack.val, haystack.len, (char *)needle.val, needle.len, 0, from_encoding TSRMLS_CC);

        if (n <0) {
                RETURN_FALSE;
        }

        mblen = mbfl_strlen(&haystack);

        if (part) {
                ret = mbfl_substr(&haystack, &result, 0, n);
                if (ret != NULL) {
                        RETVAL_STRINGL((char *)ret->val, ret->len, 0);
                } else {
                        RETVAL_FALSE;
                }
        } else {
                len = (mblen - n);
                ret = mbfl_substr(&haystack, &result, n, len);
                if (ret != NULL) {
                        RETVAL_STRINGL((char *)ret->val, ret->len, 0);
                } else {
                        RETVAL_FALSE;
                }
        }
}
/* }}} */

/* {{{ proto string mb_strrichr(string haystack, string needle[, bool part[, string encoding]])
   Finds the last occurrence of a character in a string within another, case insensitive */
PHP_FUNCTION(mb_strrichr)
{
        zend_bool part = 0;
        int n, from_encoding_len, len, mblen;
        mbfl_string haystack, needle, result, *ret = NULL;
        const char *from_encoding = MBSTRG(current_internal_encoding)->name;
        mbfl_string_init(&haystack);
        mbfl_string_init(&needle);
        haystack.no_language = MBSTRG(language);
        haystack.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;
        needle.no_language = MBSTRG(language);
        needle.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;


        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|bs", (char **)&haystack.val, &haystack.len, (char **)&needle.val, &needle.len, &part, &from_encoding, &from_encoding_len) == FAILURE) {
                RETURN_FALSE;
        }

        haystack.no_encoding = needle.no_encoding = mbfl_name2no_encoding(from_encoding);
        if (haystack.no_encoding == mbfl_no_encoding_invalid) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", from_encoding);
                RETURN_FALSE;
        }

        n = php_mb_stripos(1, (char *)haystack.val, haystack.len, (char *)needle.val, needle.len, 0, from_encoding TSRMLS_CC);

        if (n <0) {
                RETURN_FALSE;
        }

        mblen = mbfl_strlen(&haystack);

        if (part) {
                ret = mbfl_substr(&haystack, &result, 0, n);
                if (ret != NULL) {
                        RETVAL_STRINGL((char *)ret->val, ret->len, 0);
                } else {
                        RETVAL_FALSE;
                }
        } else {
                len = (mblen - n);
                ret = mbfl_substr(&haystack, &result, n, len);
                if (ret != NULL) {
                        RETVAL_STRINGL((char *)ret->val, ret->len, 0);
                } else {
                        RETVAL_FALSE;
                }
        }
}
/* }}} */

/* {{{ proto int mb_substr_count(string haystack, string needle [, string encoding])
   Count the number of substring occurrences */
PHP_FUNCTION(mb_substr_count)
{
        int n;
        mbfl_string haystack, needle;
        char *enc_name = NULL;
        int enc_name_len;

        mbfl_string_init(&haystack);
        mbfl_string_init(&needle);
        haystack.no_language = MBSTRG(language);
        haystack.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;
        needle.no_language = MBSTRG(language);
        needle.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|s", (char **)&haystack.val, &haystack.len, (char **)&needle.val, &needle.len, &enc_name, &enc_name_len) == FAILURE) {
                return;
        }

        if (enc_name != NULL) {
                haystack.no_encoding = needle.no_encoding = mbfl_name2no_encoding(enc_name);
                if (haystack.no_encoding == mbfl_no_encoding_invalid) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", enc_name);
                        RETURN_FALSE;
                }
        }

        if (needle.len <= 0) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Empty substring");
                RETURN_FALSE;
        }

        n = mbfl_substr_count(&haystack, &needle);
        if (n >= 0) {
                RETVAL_LONG(n);
        } else {
                RETVAL_FALSE;
        }
}
/* }}} */

/* {{{ proto string mb_substr(string str, int start [, int length [, string encoding]])
   Returns part of a string */
PHP_FUNCTION(mb_substr)
{
        size_t argc = ZEND_NUM_ARGS();
        char *str, *encoding;
        long from, len;
        int mblen, str_len, encoding_len;
        zval **z_len = NULL;
        mbfl_string string, result, *ret;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sl|Zs", &str, &str_len, &from, &z_len, &encoding, &encoding_len) == FAILURE) {
                return;
        }

        mbfl_string_init(&string);
        string.no_language = MBSTRG(language);
        string.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;

        if (argc == 4) {
                string.no_encoding = mbfl_name2no_encoding(encoding);
                if (string.no_encoding == mbfl_no_encoding_invalid) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", encoding);
                        RETURN_FALSE;
                }
        }

        string.val = (unsigned char *)str;
        string.len = str_len;

        if (argc < 3 || Z_TYPE_PP(z_len) == IS_NULL) {
                len = str_len;
        } else {
                convert_to_long_ex(z_len);
                len = Z_LVAL_PP(z_len);
        }

        /* measures length */
        mblen = 0;
        if (from < 0 || len < 0) {
                mblen = mbfl_strlen(&string);
        }

        /* if "from" position is negative, count start position from the end
         * of the string
         */
        if (from < 0) {
                from = mblen + from;
                if (from < 0) {
                        from = 0;
                }
        }

        /* if "length" position is negative, set it to the length
         * needed to stop that many chars from the end of the string
         */
        if (len < 0) {
                len = (mblen - from) + len;
                if (len < 0) {
                        len = 0;
                }
        }

        if (((MBSTRG(func_overload) & MB_OVERLOAD_STRING) == MB_OVERLOAD_STRING)
                && (from >= mbfl_strlen(&string))) {
                RETURN_FALSE;
        }

        ret = mbfl_substr(&string, &result, from, len);
        if (NULL == ret) {
                RETURN_FALSE;
        }

        RETURN_STRINGL((char *)ret->val, ret->len, 0); /* the string is already strdup()'ed */
}
/* }}} */

/* {{{ proto string mb_strcut(string str, int start [, int length [, string encoding]])
   Returns part of a string */
PHP_FUNCTION(mb_strcut)
{
        size_t argc = ZEND_NUM_ARGS();
        char *encoding;
        long from, len;
        int encoding_len;
        zval **z_len = NULL;
        mbfl_string string, result, *ret;

        mbfl_string_init(&string);
        string.no_language = MBSTRG(language);
        string.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sl|Zs", (char **)&string.val, (int **)&string.len, &from, &z_len, &encoding, &encoding_len) == FAILURE) {
                return;
        }

        if (argc == 4) {
                string.no_encoding = mbfl_name2no_encoding(encoding);
                if (string.no_encoding == mbfl_no_encoding_invalid) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", encoding);
                        RETURN_FALSE;
                }
        }

        if (argc < 3 || Z_TYPE_PP(z_len) == IS_NULL) {
                len = string.len;
        } else {
                convert_to_long_ex(z_len);
                len = Z_LVAL_PP(z_len);
        }

        /* if "from" position is negative, count start position from the end
         * of the string
         */
        if (from < 0) {
                from = string.len + from;
                if (from < 0) {
                        from = 0;
                }
        }

        /* if "length" position is negative, set it to the length
         * needed to stop that many chars from the end of the string
         */
        if (len < 0) {
                len = (string.len - from) + len;
                if (len < 0) {
                        len = 0;
                }
        }

        if ((unsigned int)from > string.len) {
                RETURN_FALSE;
        }

        ret = mbfl_strcut(&string, &result, from, len);
        if (ret == NULL) {
                RETURN_FALSE;
        }

        RETURN_STRINGL((char *)ret->val, ret->len, 0); /* the string is already strdup()'ed */
}
/* }}} */

/* {{{ proto int mb_strwidth(string str [, string encoding])
   Gets terminal width of a string */
PHP_FUNCTION(mb_strwidth)
{
        int n;
        mbfl_string string;
        char *enc_name = NULL;
        int enc_name_len;

        mbfl_string_init(&string);

        string.no_language = MBSTRG(language);
        string.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|s", (char **)&string.val, &string.len, &enc_name, &enc_name_len) == FAILURE) {
                return;
        }

        if (enc_name != NULL) {
                string.no_encoding = mbfl_name2no_encoding(enc_name);
                if (string.no_encoding == mbfl_no_encoding_invalid) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", enc_name);
                        RETURN_FALSE;
                }
        }

        n = mbfl_strwidth(&string);
        if (n >= 0) {
                RETVAL_LONG(n);
        } else {
                RETVAL_FALSE;
        }
}
/* }}} */

/* {{{ proto string mb_strimwidth(string str, int start, int width [, string trimmarker [, string encoding]])
   Trim the string in terminal width */
PHP_FUNCTION(mb_strimwidth)
{
        char *str, *trimmarker, *encoding;
        long from, width;
        int str_len, trimmarker_len, encoding_len;
        mbfl_string string, result, marker, *ret;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sll|ss", &str, &str_len, &from, &width, &trimmarker, &trimmarker_len, &encoding, &encoding_len) == FAILURE) {
                return;
        }

        mbfl_string_init(&string);
        mbfl_string_init(&marker);
        string.no_language = MBSTRG(language);
        string.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;
        marker.no_language = MBSTRG(language);
        marker.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;
        marker.val = NULL;
        marker.len = 0;

        if (ZEND_NUM_ARGS() == 5) {
                string.no_encoding = marker.no_encoding = mbfl_name2no_encoding(encoding);
                if (string.no_encoding == mbfl_no_encoding_invalid) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", encoding);
                        RETURN_FALSE;
                }
        }

        string.val = (unsigned char *)str;
        string.len = str_len;

        if (from < 0 || from > str_len) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Start position is out of range");
                RETURN_FALSE;
        }

        if (width < 0) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Width is negative value");
                RETURN_FALSE;
        }

        if (ZEND_NUM_ARGS() >= 4) {
                marker.val = (unsigned char *)trimmarker;
                marker.len = trimmarker_len;
        }

        ret = mbfl_strimwidth(&string, &marker, &result, from, width);

        if (ret == NULL) {
                RETURN_FALSE;
        }

        RETVAL_STRINGL((char *)ret->val, ret->len, 0); /* the string is already strdup()'ed */
}
/* }}} */

/* {{{ MBSTRING_API char *php_mb_convert_encoding() */
MBSTRING_API char * php_mb_convert_encoding(const char *input, size_t length, const char *_to_encoding, const char *_from_encodings, size_t *output_len TSRMLS_DC)
{
        mbfl_string string, result, *ret;
        const mbfl_encoding *from_encoding, *to_encoding;
        mbfl_buffer_converter *convd;
        size_t size;
        const mbfl_encoding **list;
        char *output=NULL;

        if (output_len) {
                *output_len = 0;
        }
        if (!input) {
                return NULL;
        }
        /* new encoding */
        if (_to_encoding && strlen(_to_encoding)) {
                to_encoding = mbfl_name2encoding(_to_encoding);
                if (!to_encoding) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", _to_encoding);
                        return NULL;
                }
        } else {
                to_encoding = MBSTRG(current_internal_encoding);
        }

        /* initialize string */
        mbfl_string_init(&string);
        mbfl_string_init(&result);
        from_encoding = MBSTRG(current_internal_encoding);
        string.no_encoding = from_encoding->no_encoding;
        string.no_language = MBSTRG(language);
        string.val = (unsigned char *)input;
        string.len = length;

        /* pre-conversion encoding */
        if (_from_encodings) {
                list = NULL;
                size = 0;
                php_mb_parse_encoding_list(_from_encodings, strlen(_from_encodings), &list, &size, 0 TSRMLS_CC);
                if (size == 1) {
                        from_encoding = *list;
                        string.no_encoding = from_encoding->no_encoding;
                } else if (size > 1) {
                        /* auto detect */
                        from_encoding = mbfl_identify_encoding2(&string, list, size, MBSTRG(strict_detection));
                        if (from_encoding) {
                                string.no_encoding = from_encoding->no_encoding;
                        } else {
                                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to detect character encoding");
                                from_encoding = &mbfl_encoding_pass;
                                to_encoding = from_encoding;
                                string.no_encoding = from_encoding->no_encoding;
                        }
                } else {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Illegal character encoding specified");
                }
                if (list != NULL) {
                        efree((void *)list);
                }
        }

        /* initialize converter */
        convd = mbfl_buffer_converter_new2(from_encoding, to_encoding, string.len);
        if (convd == NULL) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to create character encoding converter");
                return NULL;
        }
        mbfl_buffer_converter_illegal_mode(convd, MBSTRG(current_filter_illegal_mode));
        mbfl_buffer_converter_illegal_substchar(convd, MBSTRG(current_filter_illegal_substchar));

        /* do it */
        ret = mbfl_buffer_converter_feed_result(convd, &string, &result);
        if (ret) {
                if (output_len) {
                        *output_len = ret->len;
                }
                output = (char *)ret->val;
        }

        MBSTRG(illegalchars) += mbfl_buffer_illegalchars(convd);
        mbfl_buffer_converter_delete(convd);
        return output;
}
/* }}} */

/* {{{ proto string mb_convert_encoding(string str, string to-encoding [, mixed from-encoding])
   Returns converted string in desired encoding */
PHP_FUNCTION(mb_convert_encoding)
{
        char *arg_str, *arg_new;
        int str_len, new_len;
        zval *arg_old;
        int i;
        size_t size, l, n;
        char *_from_encodings = NULL, *ret, *s_free = NULL;

        zval **hash_entry;
        HashTable *target_hash;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|z", &arg_str, &str_len, &arg_new, &new_len, &arg_old) == FAILURE) {
                return;
        }

        if (ZEND_NUM_ARGS() == 3) {
                switch (Z_TYPE_P(arg_old)) {
                case IS_ARRAY:
                        target_hash = Z_ARRVAL_P(arg_old);
                        zend_hash_internal_pointer_reset(target_hash);
                        i = zend_hash_num_elements(target_hash);
                        _from_encodings = NULL;

                        while (i > 0) {
                                if (zend_hash_get_current_data(target_hash, (void **) &hash_entry) == FAILURE) {
                                        break;
                                }

                                convert_to_string_ex(hash_entry);

                                if ( _from_encodings) {
                                        l = strlen(_from_encodings);
                                        n = strlen(Z_STRVAL_PP(hash_entry));
                                        _from_encodings = erealloc(_from_encodings, l+n+2);
                                        strcpy(_from_encodings+l, ",");
                                        strcpy(_from_encodings+l+1, Z_STRVAL_PP(hash_entry));
                                } else {
                                        _from_encodings = estrdup(Z_STRVAL_PP(hash_entry));
                                }

                                zend_hash_move_forward(target_hash);
                                i--;
                        }

                        if (_from_encodings != NULL && !strlen(_from_encodings)) {
                                efree(_from_encodings);
                                _from_encodings = NULL;
                        }
                        s_free = _from_encodings;
                        break;
                default:
                        convert_to_string(arg_old);
                        _from_encodings = Z_STRVAL_P(arg_old);
                        break;
                }
        }

        /* new encoding */
        ret = php_mb_convert_encoding(arg_str, str_len, arg_new, _from_encodings, &size TSRMLS_CC);
        if (ret != NULL) {
                RETVAL_STRINGL(ret, size, 0);           /* the string is already strdup()'ed */
        } else {
                RETVAL_FALSE;
        }

        if ( s_free) {
                efree(s_free);
        }
}
/* }}} */

/* {{{ proto string mb_convert_case(string sourcestring, int mode [, string encoding])
   Returns a case-folded version of sourcestring */
PHP_FUNCTION(mb_convert_case)
{
        const char *from_encoding = MBSTRG(current_internal_encoding)->mime_name;
        char *str;
        int str_len, from_encoding_len;
        long case_mode = 0;
        char *newstr;
        size_t ret_len;

        RETVAL_FALSE;
        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sl|s!", &str, &str_len,
                                &case_mode, &from_encoding, &from_encoding_len) == FAILURE)
                RETURN_FALSE;

        newstr = php_unicode_convert_case(case_mode, str, (size_t) str_len, &ret_len, from_encoding TSRMLS_CC);

        if (newstr) {
                RETVAL_STRINGL(newstr, ret_len, 0);
        }       
}
/* }}} */

/* {{{ proto string mb_strtoupper(string sourcestring [, string encoding])
 *  Returns a uppercased version of sourcestring
 */
PHP_FUNCTION(mb_strtoupper)
{
        const char *from_encoding = MBSTRG(current_internal_encoding)->mime_name;
        char *str;
        int str_len, from_encoding_len;
        char *newstr;
        size_t ret_len;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|s!", &str, &str_len,
                                &from_encoding, &from_encoding_len) == FAILURE) {
                return;
        }
        newstr = php_unicode_convert_case(PHP_UNICODE_CASE_UPPER, str, (size_t) str_len, &ret_len, from_encoding TSRMLS_CC);

        if (newstr) {
                RETURN_STRINGL(newstr, ret_len, 0);
        }
        RETURN_FALSE;
}
/* }}} */

/* {{{ proto string mb_strtolower(string sourcestring [, string encoding])
 *  Returns a lowercased version of sourcestring
 */
PHP_FUNCTION(mb_strtolower)
{
        const char *from_encoding = MBSTRG(current_internal_encoding)->mime_name;
        char *str;
        int str_len, from_encoding_len;
        char *newstr;
        size_t ret_len;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|s!", &str, &str_len,
                                &from_encoding, &from_encoding_len) == FAILURE) {
                return;
        }
        newstr = php_unicode_convert_case(PHP_UNICODE_CASE_LOWER, str, (size_t) str_len, &ret_len, from_encoding TSRMLS_CC);

        if (newstr) {
                RETURN_STRINGL(newstr, ret_len, 0);
        }
        RETURN_FALSE;
}
/* }}} */

/* {{{ proto string mb_detect_encoding(string str [, mixed encoding_list [, bool strict]])
   Encodings of the given string is returned (as a string) */
PHP_FUNCTION(mb_detect_encoding)
{
        char *str;
        int str_len;
        zend_bool strict=0;
        zval *encoding_list;

        mbfl_string string;
        const mbfl_encoding *ret;
        const mbfl_encoding **elist, **list;
        size_t size;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|zb", &str, &str_len, &encoding_list, &strict) == FAILURE) {
                return;
        }

        /* make encoding list */
        list = NULL;
        size = 0;
        if (ZEND_NUM_ARGS() >= 2 && !ZVAL_IS_NULL(encoding_list)) {
                switch (Z_TYPE_P(encoding_list)) {
                case IS_ARRAY:
                        if (FAILURE == php_mb_parse_encoding_array(encoding_list, &list, &size, 0 TSRMLS_CC)) {
                                if (list) {
                                        efree(list);
                                        list = NULL;
                                        size = 0;
                                }
                        }
                        break;
                default:
                        convert_to_string(encoding_list);
                        if (FAILURE == php_mb_parse_encoding_list(Z_STRVAL_P(encoding_list), Z_STRLEN_P(encoding_list), &list, &size, 0 TSRMLS_CC)) {
                                if (list) {
                                        efree(list);
                                        list = NULL;
                                        size = 0;
                                }
                        }
                        break;
                }
                if (size <= 0) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Illegal argument");
                }
        }

        if (ZEND_NUM_ARGS() < 3) {
                strict = (zend_bool)MBSTRG(strict_detection);
        }

        if (size > 0 && list != NULL) {
                elist = list;
        } else {
                elist = MBSTRG(current_detect_order_list);
                size = MBSTRG(current_detect_order_list_size);
        }

        mbfl_string_init(&string);
        string.no_language = MBSTRG(language);
        string.val = (unsigned char *)str;
        string.len = str_len;
        ret = mbfl_identify_encoding2(&string, elist, size, strict);

        if (list != NULL) {
                efree((void *)list);
        }

        if (ret == NULL) {
                RETURN_FALSE;
        }

        RETVAL_STRING((char *)ret->name, 1);
}
/* }}} */

/* {{{ proto mixed mb_list_encodings()
   Returns an array of all supported entity encodings */
PHP_FUNCTION(mb_list_encodings)
{
        const mbfl_encoding **encodings;
        const mbfl_encoding *encoding;
        int i;

        array_init(return_value);
        i = 0;
        encodings = mbfl_get_supported_encodings();
        while ((encoding = encodings[i++]) != NULL) {
                add_next_index_string(return_value, (char *) encoding->name, 1);
        }
}
/* }}} */

/* {{{ proto array mb_encoding_aliases(string encoding)
   Returns an array of the aliases of a given encoding name */
PHP_FUNCTION(mb_encoding_aliases)
{
        const mbfl_encoding *encoding;
        char *name = NULL;
        int name_len;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &name, &name_len) == FAILURE) {
                RETURN_FALSE;
        }

        encoding = mbfl_name2encoding(name);
        if (!encoding) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", name);
                RETURN_FALSE;
        }

        array_init(return_value);
        if (encoding->aliases != NULL) {
                const char **alias;
                for (alias = *encoding->aliases; *alias; ++alias) {
                        add_next_index_string(return_value, (char *)*alias, 1);
                }
        }
}
/* }}} */

/* {{{ proto string mb_encode_mimeheader(string str [, string charset [, string transfer-encoding [, string linefeed [, int indent]]]])
   Converts the string to MIME "encoded-word" in the format of =?charset?(B|Q)?encoded_string?= */
PHP_FUNCTION(mb_encode_mimeheader)
{
        enum mbfl_no_encoding charset, transenc;
        mbfl_string  string, result, *ret;
        char *charset_name = NULL;
        int charset_name_len;
        char *trans_enc_name = NULL;
        int trans_enc_name_len;
        char *linefeed = "\r\n";
        int linefeed_len;
        long indent = 0;

        mbfl_string_init(&string);
        string.no_language = MBSTRG(language);
        string.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|sssl", (char **)&string.val, &string.len, &charset_name, &charset_name_len, &trans_enc_name, &trans_enc_name_len, &linefeed, &linefeed_len, &indent) == FAILURE) {
                return;
        }

        charset = mbfl_no_encoding_pass;
        transenc = mbfl_no_encoding_base64;

        if (charset_name != NULL) {
                charset = mbfl_name2no_encoding(charset_name);
                if (charset == mbfl_no_encoding_invalid) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", charset_name);
                        RETURN_FALSE;
                }
        } else {
                const mbfl_language *lang = mbfl_no2language(MBSTRG(language));
                if (lang != NULL) {
                        charset = lang->mail_charset;
                        transenc = lang->mail_header_encoding;
                }
        }

        if (trans_enc_name != NULL) {
                if (*trans_enc_name == 'B' || *trans_enc_name == 'b') {
                        transenc = mbfl_no_encoding_base64;
                } else if (*trans_enc_name == 'Q' || *trans_enc_name == 'q') {
                        transenc = mbfl_no_encoding_qprint;
                }
        }

        mbfl_string_init(&result);
        ret = mbfl_mime_header_encode(&string, &result, charset, transenc, linefeed, indent);
        if (ret != NULL) {
                RETVAL_STRINGL((char *)ret->val, ret->len, 0);  /* the string is already strdup()'ed */
        } else {
                RETVAL_FALSE;
        }
}
/* }}} */

/* {{{ proto string mb_decode_mimeheader(string string)
   Decodes the MIME "encoded-word" in the string */
PHP_FUNCTION(mb_decode_mimeheader)
{
        mbfl_string string, result, *ret;

        mbfl_string_init(&string);
        string.no_language = MBSTRG(language);
        string.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", (char **)&string.val, &string.len) == FAILURE) {
                return;
        }

        mbfl_string_init(&result);
        ret = mbfl_mime_header_decode(&string, &result, MBSTRG(current_internal_encoding)->no_encoding);
        if (ret != NULL) {
                RETVAL_STRINGL((char *)ret->val, ret->len, 0);  /* the string is already strdup()'ed */
        } else {
                RETVAL_FALSE;
        }
}
/* }}} */

/* {{{ proto string mb_convert_kana(string str [, string option] [, string encoding])
   Conversion between full-width character and half-width character (Japanese) */
PHP_FUNCTION(mb_convert_kana)
{
        int opt, i;
        mbfl_string string, result, *ret;
        char *optstr = NULL;
        int optstr_len;
        char *encname = NULL;
        int encname_len;

        mbfl_string_init(&string);
        string.no_language = MBSTRG(language);
        string.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|ss", (char **)&string.val, &string.len, &optstr, &optstr_len, &encname, &encname_len) == FAILURE) {
                return;
        }

        /* option */
        if (optstr != NULL) {
                char *p = optstr;
                int n = optstr_len;
                i = 0;
                opt = 0;
                while (i < n) {
                        i++;
                        switch (*p++) {
                        case 'A':
                                opt |= 0x1;
                                break;
                        case 'a':
                                opt |= 0x10;
                                break;
                        case 'R':
                                opt |= 0x2;
                                break;
                        case 'r':
                                opt |= 0x20;
                                break;
                        case 'N':
                                opt |= 0x4;
                                break;
                        case 'n':
                                opt |= 0x40;
                                break;
                        case 'S':
                                opt |= 0x8;
                                break;
                        case 's':
                                opt |= 0x80;
                                break;
                        case 'K':
                                opt |= 0x100;
                                break;
                        case 'k':
                                opt |= 0x1000;
                                break;
                        case 'H':
                                opt |= 0x200;
                                break;
                        case 'h':
                                opt |= 0x2000;
                                break;
                        case 'V':
                                opt |= 0x800;
                                break;
                        case 'C':
                                opt |= 0x10000;
                                break;
                        case 'c':
                                opt |= 0x20000;
                                break;
                        case 'M':
                                opt |= 0x100000;
                                break;
                        case 'm':
                                opt |= 0x200000;
                                break;
                        }
                }
        } else {
                opt = 0x900;
        }

        /* encoding */
        if (encname != NULL) {
                string.no_encoding = mbfl_name2no_encoding(encname);
                if (string.no_encoding == mbfl_no_encoding_invalid) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", encname);
                        RETURN_FALSE;
                }
        }

        ret = mbfl_ja_jp_hantozen(&string, &result, opt);
        if (ret != NULL) {
                RETVAL_STRINGL((char *)ret->val, ret->len, 0);          /* the string is already strdup()'ed */
        } else {
                RETVAL_FALSE;
        }
}
/* }}} */

#define PHP_MBSTR_STACK_BLOCK_SIZE 32

/* {{{ proto string mb_convert_variables(string to-encoding, mixed from-encoding, mixed vars [, ...])
   Converts the string resource in variables to desired encoding */
PHP_FUNCTION(mb_convert_variables)
{
        zval ***args, ***stack, **var, **hash_entry, **zfrom_enc;
        HashTable *target_hash;
        mbfl_string string, result, *ret;
        const mbfl_encoding *from_encoding, *to_encoding;
        mbfl_encoding_detector *identd;
        mbfl_buffer_converter *convd;
        int n, to_enc_len, argc, stack_level, stack_max;
        size_t elistsz;
        const mbfl_encoding **elist;
        char *to_enc;
        void *ptmp;     

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sZ+", &to_enc, &to_enc_len, &zfrom_enc, &args, &argc) == FAILURE) {
                return;
        }

        /* new encoding */
        to_encoding = mbfl_name2encoding(to_enc);
        if (!to_encoding) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", to_enc);
                efree(args);
                RETURN_FALSE;
        }

        /* initialize string */
        mbfl_string_init(&string);
        mbfl_string_init(&result);
        from_encoding = MBSTRG(current_internal_encoding);
        string.no_encoding = from_encoding->no_encoding;
        string.no_language = MBSTRG(language);

        /* pre-conversion encoding */
        elist = NULL;
        elistsz = 0;
        switch (Z_TYPE_PP(zfrom_enc)) {
        case IS_ARRAY:
                php_mb_parse_encoding_array(*zfrom_enc, &elist, &elistsz, 0 TSRMLS_CC);
                break;
        default:
                convert_to_string_ex(zfrom_enc);
                php_mb_parse_encoding_list(Z_STRVAL_PP(zfrom_enc), Z_STRLEN_PP(zfrom_enc), &elist, &elistsz, 0 TSRMLS_CC);
                break;
        }
        if (elistsz <= 0) {
                from_encoding = &mbfl_encoding_pass;
        } else if (elistsz == 1) {
                from_encoding = *elist;
        } else {
                /* auto detect */
                from_encoding = NULL;
                stack_max = PHP_MBSTR_STACK_BLOCK_SIZE;
                stack = (zval ***)safe_emalloc(stack_max, sizeof(zval **), 0);
                stack_level = 0;
                identd = mbfl_encoding_detector_new2(elist, elistsz, MBSTRG(strict_detection));
                if (identd != NULL) {
                        n = 0;
                        while (n < argc || stack_level > 0) {
                                if (stack_level <= 0) {
                                        var = args[n++];
                                        if (Z_TYPE_PP(var) == IS_ARRAY || Z_TYPE_PP(var) == IS_OBJECT) {
                                                target_hash = HASH_OF(*var);
                                                if (target_hash != NULL) {
                                                        zend_hash_internal_pointer_reset(target_hash);
                                                }
                                        }
                                } else {
                                        stack_level--;
                                        var = stack[stack_level];
                                }
                                if (Z_TYPE_PP(var) == IS_ARRAY || Z_TYPE_PP(var) == IS_OBJECT) {
                                        target_hash = HASH_OF(*var);
                                        if (target_hash != NULL) {
                                                while (zend_hash_get_current_data(target_hash, (void **) &hash_entry) != FAILURE) {
                                                        zend_hash_move_forward(target_hash);
                                                        if (Z_TYPE_PP(hash_entry) == IS_ARRAY || Z_TYPE_PP(hash_entry) == IS_OBJECT) {
                                                                if (stack_level >= stack_max) {
                                                                        stack_max += PHP_MBSTR_STACK_BLOCK_SIZE;
                                                                        ptmp = erealloc(stack, sizeof(zval **)*stack_max);
                                                                        stack = (zval ***)ptmp;
                                                                }
                                                                stack[stack_level] = var;
                                                                stack_level++;
                                                                var = hash_entry;
                                                                target_hash = HASH_OF(*var);
                                                                if (target_hash != NULL) {
                                                                        zend_hash_internal_pointer_reset(target_hash);
                                                                        continue;
                                                                }
                                                        } else if (Z_TYPE_PP(hash_entry) == IS_STRING) {
                                                                string.val = (unsigned char *)Z_STRVAL_PP(hash_entry);
                                                                string.len = Z_STRLEN_PP(hash_entry);
                                                                if (mbfl_encoding_detector_feed(identd, &string)) {
                                                                        goto detect_end;                /* complete detecting */
                                                                }
                                                        }
                                                }
                                        }
                                } else if (Z_TYPE_PP(var) == IS_STRING) {
                                        string.val = (unsigned char *)Z_STRVAL_PP(var);
                                        string.len = Z_STRLEN_PP(var);
                                        if (mbfl_encoding_detector_feed(identd, &string)) {
                                                goto detect_end;                /* complete detecting */
                                        }
                                }
                        }
detect_end:
                        from_encoding = mbfl_encoding_detector_judge2(identd);
                        mbfl_encoding_detector_delete(identd);
                }
                efree(stack);

                if (!from_encoding) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to detect encoding");
                        from_encoding = &mbfl_encoding_pass;
                }
        }
        if (elist != NULL) {
                efree((void *)elist);
        }
        /* create converter */
        convd = NULL;
        if (from_encoding != &mbfl_encoding_pass) {
                convd = mbfl_buffer_converter_new2(from_encoding, to_encoding, 0);
                if (convd == NULL) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to create converter");
                        RETURN_FALSE;
                }
                mbfl_buffer_converter_illegal_mode(convd, MBSTRG(current_filter_illegal_mode));
                mbfl_buffer_converter_illegal_substchar(convd, MBSTRG(current_filter_illegal_substchar));
        }

        /* convert */
        if (convd != NULL) {
                stack_max = PHP_MBSTR_STACK_BLOCK_SIZE;
                stack = (zval ***)safe_emalloc(stack_max, sizeof(zval **), 0);
                stack_level = 0;
                n = 0;
                while (n < argc || stack_level > 0) {
                        if (stack_level <= 0) {
                                var = args[n++];
                                if (Z_TYPE_PP(var) == IS_ARRAY || Z_TYPE_PP(var) == IS_OBJECT) {
                                        target_hash = HASH_OF(*var);
                                        if (target_hash != NULL) {
                                                zend_hash_internal_pointer_reset(target_hash);
                                        }
                                }
                        } else {
                                stack_level--;
                                var = stack[stack_level];
                        }
                        if (Z_TYPE_PP(var) == IS_ARRAY || Z_TYPE_PP(var) == IS_OBJECT) {
                                target_hash = HASH_OF(*var);
                                if (target_hash != NULL) {
                                        while (zend_hash_get_current_data(target_hash, (void **) &hash_entry) != FAILURE) {
                                                zend_hash_move_forward(target_hash);
                                                if (Z_TYPE_PP(hash_entry) == IS_ARRAY || Z_TYPE_PP(hash_entry) == IS_OBJECT) {
                                                        if (stack_level >= stack_max) {
                                                                stack_max += PHP_MBSTR_STACK_BLOCK_SIZE;
                                                                ptmp = erealloc(stack, sizeof(zval **)*stack_max);
                                                                stack = (zval ***)ptmp;
                                                        }
                                                        stack[stack_level] = var;
                                                        stack_level++;
                                                        var = hash_entry;
                                                        SEPARATE_ZVAL(hash_entry);
                                                        target_hash = HASH_OF(*var);
                                                        if (target_hash != NULL) {
                                                                zend_hash_internal_pointer_reset(target_hash);
                                                                continue;
                                                        }
                                                } else if (Z_TYPE_PP(hash_entry) == IS_STRING) {
                                                        string.val = (unsigned char *)Z_STRVAL_PP(hash_entry);
                                                        string.len = Z_STRLEN_PP(hash_entry);
                                                        ret = mbfl_buffer_converter_feed_result(convd, &string, &result);
                                                        if (ret != NULL) {
                                                                if (Z_REFCOUNT_PP(hash_entry) > 1) {
                                                                        Z_DELREF_PP(hash_entry);
                                                                        MAKE_STD_ZVAL(*hash_entry);
                                                                } else {
                                                                        zval_dtor(*hash_entry);
                                                                }
                                                        ZVAL_STRINGL(*hash_entry, (char *)ret->val, ret->len, 0);
                                                }
                                        }
                                }
                        }
                } else if (Z_TYPE_PP(var) == IS_STRING) {
                        string.val = (unsigned char *)Z_STRVAL_PP(var);
                        string.len = Z_STRLEN_PP(var);
                        ret = mbfl_buffer_converter_feed_result(convd, &string, &result);
                        if (ret != NULL) {
                                zval_dtor(*var);
                                ZVAL_STRINGL(*var, (char *)ret->val, ret->len, 0);
                                }
                        }
                }
                efree(stack);

                MBSTRG(illegalchars) += mbfl_buffer_illegalchars(convd);
                mbfl_buffer_converter_delete(convd);
        }

        efree(args);

        if (from_encoding) {
                RETURN_STRING(from_encoding->name, 1);
        } else {
                RETURN_FALSE;
        }
}
/* }}} */

/* {{{ HTML numeric entity */
/* {{{ static void php_mb_numericentity_exec() */
static void
php_mb_numericentity_exec(INTERNAL_FUNCTION_PARAMETERS, int type)
{
        char *str, *encoding;
        int str_len, encoding_len;
        zval *zconvmap, **hash_entry;
        HashTable *target_hash;
        size_t argc = ZEND_NUM_ARGS();
        int i, *convmap, *mapelm, mapsize=0;
        zend_bool is_hex = 0;
        mbfl_string string, result, *ret;
        enum mbfl_no_encoding no_encoding;

        if (zend_parse_parameters(argc TSRMLS_CC, "sz|sb", &str, &str_len, &zconvmap, &encoding, &encoding_len, &is_hex) == FAILURE) {
                return;
        }

        mbfl_string_init(&string);
        string.no_language = MBSTRG(language);
        string.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;
        string.val = (unsigned char *)str;
        string.len = str_len;

        /* encoding */
        if ((argc == 3 || argc == 4) && encoding_len > 0) {
                no_encoding = mbfl_name2no_encoding(encoding);
                if (no_encoding == mbfl_no_encoding_invalid) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", encoding);
                        RETURN_FALSE;
                } else {
                        string.no_encoding = no_encoding;
                }
        }

        if (argc == 4) {
                if (type == 0 && is_hex) {
                        type = 2; /* output in hex format */
                }
        }

        /* conversion map */
        convmap = NULL;
        if (Z_TYPE_P(zconvmap) == IS_ARRAY) {
                target_hash = Z_ARRVAL_P(zconvmap);
                zend_hash_internal_pointer_reset(target_hash);
                i = zend_hash_num_elements(target_hash);
                if (i > 0) {
                        convmap = (int *)safe_emalloc(i, sizeof(int), 0);
                        mapelm = convmap;
                        mapsize = 0;
                        while (i > 0) {
                                if (zend_hash_get_current_data(target_hash, (void **) &hash_entry) == FAILURE) {
                                        break;
                                }
                                convert_to_long_ex(hash_entry);
                                *mapelm++ = Z_LVAL_PP(hash_entry);
                                mapsize++;
                                i--;
                                zend_hash_move_forward(target_hash);
                        }
                }
        }
        if (convmap == NULL) {
                RETURN_FALSE;
        }
        mapsize /= 4;

        ret = mbfl_html_numeric_entity(&string, &result, convmap, mapsize, type);
        if (ret != NULL) {
                RETVAL_STRINGL((char *)ret->val, ret->len, 0);
        } else {
                RETVAL_FALSE;
        }
        efree((void *)convmap);
}
/* }}} */

/* {{{ proto string mb_encode_numericentity(string string, array convmap [, string encoding [, bool is_hex]])
   Converts specified characters to HTML numeric entities */
PHP_FUNCTION(mb_encode_numericentity)
{
        php_mb_numericentity_exec(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
}
/* }}} */

/* {{{ proto string mb_decode_numericentity(string string, array convmap [, string encoding])
   Converts HTML numeric entities to character code */
PHP_FUNCTION(mb_decode_numericentity)
{
        php_mb_numericentity_exec(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
}
/* }}} */
/* }}} */

/* {{{ proto int mb_send_mail(string to, string subject, string message [, string additional_headers [, string additional_parameters]])
 *  Sends an email message with MIME scheme
 */

#define SKIP_LONG_HEADER_SEP_MBSTRING(str, pos)                                                                         \
        if (str[pos] == '\r' && str[pos + 1] == '\n' && (str[pos + 2] == ' ' || str[pos + 2] == '\t')) {        \
                pos += 2;                                                                                       \
                while (str[pos + 1] == ' ' || str[pos + 1] == '\t') {                                                   \
                        pos++;                                                                                  \
                }                                                                                               \
                continue;                                                                                       \
        }

#define MAIL_ASCIIZ_CHECK_MBSTRING(str, len)                    \
        pp = str;                                       \
        ee = pp + len;                                  \
        while ((pp = memchr(pp, '\0', (ee - pp)))) {    \
                *pp = ' ';                              \
        }                                               \

#define APPEND_ONE_CHAR(ch) do { \
        if (token.a > 0) { \
                smart_str_appendc(&token, ch); \
        } else {\
                token.len++; \
        } \
} while (0)

#define SEPARATE_SMART_STR(str) do {\
        if ((str)->a == 0) { \
                char *tmp_ptr; \
                (str)->a = 1; \
                while ((str)->a < (str)->len) { \
                        (str)->a <<= 1; \
                } \
                tmp_ptr = emalloc((str)->a + 1); \
                memcpy(tmp_ptr, (str)->c, (str)->len); \
                (str)->c = tmp_ptr; \
        } \
} while (0)

static void my_smart_str_dtor(smart_str *s)
{
        if (s->a > 0) {
                smart_str_free(s);
        }
}

static int _php_mbstr_parse_mail_headers(HashTable *ht, const char *str, size_t str_len)
{
        const char *ps;
        size_t icnt;
        int state = 0;
        int crlf_state = -1;

        smart_str token = { 0, 0, 0 };
        smart_str fld_name = { 0, 0, 0 }, fld_val = { 0, 0, 0 };

        ps = str;
        icnt = str_len;

        /*
         *             C o n t e n t - T y p e :   t e x t / h t m l \r\n
         *             ^ ^^^^^^^^^^^^^^^^^^^^^ ^^^ ^^^^^^^^^^^^^^^^^ ^^^^ 
         *      state  0            1           2          3          
         *
         *             C o n t e n t - T y p e :   t e x t / h t m l \r\n
         *             ^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^ 
         * crlf_state -1                       0                     1 -1  
         *
         */

        while (icnt > 0) {
                switch (*ps) {
                        case ':':
                                if (crlf_state == 1) {
                                        APPEND_ONE_CHAR('\r');
                                }

                                if (state == 0 || state == 1) {
                                        fld_name = token;

                                        state = 2;
                                } else {
                                        APPEND_ONE_CHAR(*ps);
                                }

                                crlf_state = 0;
                                break;

                        case '\n':
                                if (crlf_state == -1) {
                                        goto out;
                                }
                                crlf_state = -1;
                                break;

                        case '\r':
                                if (crlf_state == 1) {
                                        APPEND_ONE_CHAR('\r');
                                } else {
                                        crlf_state = 1;
                                }
                                break;

                        case ' ': case '\t':
                                if (crlf_state == -1) {
                                        if (state == 3) {
                                                /* continuing from the previous line */
                                                SEPARATE_SMART_STR(&token);
                                                state = 4;
                                        } else {
                                                /* simply skipping this new line */
                                                state = 5;
                                        }
                                } else {
                                        if (crlf_state == 1) {
                                                APPEND_ONE_CHAR('\r');
                                        }
                                        if (state == 1 || state == 3) {
                                                APPEND_ONE_CHAR(*ps);
                                        }
                                }
                                crlf_state = 0;
                                break;

                        default:
                                switch (state) {
                                        case 0:
                                                token.c = (char *)ps;
                                                token.len = 0;
                                                token.a = 0;
                                                state = 1;
                                                break;
                                        
                                        case 2:
                                                if (crlf_state != -1) {
                                                        token.c = (char *)ps;
                                                        token.len = 0;
                                                        token.a = 0;

                                                        state = 3;
                                                        break;
                                                }
                                                /* break is missing intentionally */

                                        case 3:
                                                if (crlf_state == -1) {
                                                        fld_val = token;

                                                        if (fld_name.c != NULL && fld_val.c != NULL) {
                                                                char *dummy;

                                                                /* FIXME: some locale free implementation is
                                                                 * really required here,,, */
                                                                SEPARATE_SMART_STR(&fld_name);
                                                                php_strtoupper(fld_name.c, fld_name.len);

                                                                zend_hash_update(ht, (char *)fld_name.c, fld_name.len, &fld_val, sizeof(smart_str), (void **)&dummy);

                                                                my_smart_str_dtor(&fld_name);
                                                        }

                                                        memset(&fld_name, 0, sizeof(smart_str));
                                                        memset(&fld_val, 0, sizeof(smart_str));

                                                        token.c = (char *)ps;
                                                        token.len = 0;
                                                        token.a = 0;

                                                        state = 1;
                                                }
                                                break;

                                        case 4:
                                                APPEND_ONE_CHAR(' ');
                                                state = 3;
                                                break;
                                }

                                if (crlf_state == 1) {
                                        APPEND_ONE_CHAR('\r');
                                }

                                APPEND_ONE_CHAR(*ps);

                                crlf_state = 0;
                                break;
                }
                ps++, icnt--;
        }
out:
        if (state == 2) {
                token.c = "";
                token.len = 0;
                token.a = 0;

                state = 3;
        }
        if (state == 3) {
                fld_val = token;

                if (fld_name.c != NULL && fld_val.c != NULL) {
                        void *dummy;

                        /* FIXME: some locale free implementation is
                         * really required here,,, */
                        SEPARATE_SMART_STR(&fld_name);
                        php_strtoupper(fld_name.c, fld_name.len);

                        zend_hash_update(ht, (char *)fld_name.c, fld_name.len, &fld_val, sizeof(smart_str), (void **)&dummy);

                        my_smart_str_dtor(&fld_name);
                }
        }
        return state;
}

PHP_FUNCTION(mb_send_mail)
{
        int n;
        char *to = NULL;
        int to_len;
        char *message = NULL;
        int message_len;
        char *headers = NULL;
        int headers_len;
        char *subject = NULL;
        int subject_len;
        char *extra_cmd = NULL;
        int extra_cmd_len;
        int i;
        char *to_r = NULL;
        char *force_extra_parameters = INI_STR("mail.force_extra_parameters");
        struct {
                int cnt_type:1;
                int cnt_trans_enc:1;
        } suppressed_hdrs = { 0, 0 };

        char *message_buf = NULL, *subject_buf = NULL, *p;
        mbfl_string orig_str, conv_str;
        mbfl_string *pstr;      /* pointer to mbfl string for return value */
        enum mbfl_no_encoding
                tran_cs,        /* transfar text charset */
                head_enc,       /* header transfar encoding */
                body_enc;       /* body transfar encoding */
        mbfl_memory_device device;      /* automatic allocateable buffer for additional header */
        const mbfl_language *lang;
        int err = 0;
        HashTable ht_headers;
        smart_str *s;
        extern void mbfl_memory_device_unput(mbfl_memory_device *device);
        char *pp, *ee;

        /* initialize */
        mbfl_memory_device_init(&device, 0, 0);
        mbfl_string_init(&orig_str);
        mbfl_string_init(&conv_str);

        /* character-set, transfer-encoding */
        tran_cs = mbfl_no_encoding_utf8;
        head_enc = mbfl_no_encoding_base64;
        body_enc = mbfl_no_encoding_base64;
        lang = mbfl_no2language(MBSTRG(language));
        if (lang != NULL) {
                tran_cs = lang->mail_charset;
                head_enc = lang->mail_header_encoding;
                body_enc = lang->mail_body_encoding;
        }

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sss|ss", &to, &to_len, &subject, &subject_len, &message, &message_len, &headers, &headers_len, &extra_cmd, &extra_cmd_len) == FAILURE) {
                return;
        }

        /* ASCIIZ check */
        MAIL_ASCIIZ_CHECK_MBSTRING(to, to_len);
        MAIL_ASCIIZ_CHECK_MBSTRING(subject, subject_len);
        MAIL_ASCIIZ_CHECK_MBSTRING(message, message_len);
        if (headers) {
                MAIL_ASCIIZ_CHECK_MBSTRING(headers, headers_len);
        }
        if (extra_cmd) {
                MAIL_ASCIIZ_CHECK_MBSTRING(extra_cmd, extra_cmd_len);
        }

        zend_hash_init(&ht_headers, 0, NULL, (dtor_func_t) my_smart_str_dtor, 0);

        if (headers != NULL) {
                _php_mbstr_parse_mail_headers(&ht_headers, headers, headers_len);
        }

        if (zend_hash_find(&ht_headers, "CONTENT-TYPE", sizeof("CONTENT-TYPE") - 1, (void **)&s) == SUCCESS) {
                char *tmp;
                char *param_name;
                char *charset = NULL;

                SEPARATE_SMART_STR(s);
                smart_str_0(s);

                p = strchr(s->c, ';');

                if (p != NULL) {
                        /* skipping the padded spaces */
                        do {
                                ++p;
                        } while (*p == ' ' || *p == '\t');

                        if (*p != '\0') {
                                if ((param_name = php_strtok_r(p, "= ", &tmp)) != NULL) {
                                        if (strcasecmp(param_name, "charset") == 0) {
                                                enum mbfl_no_encoding _tran_cs = tran_cs;
                                                
                                                charset = php_strtok_r(NULL, "= \"", &tmp);
                                                if (charset != NULL) {
                                                        _tran_cs = mbfl_name2no_encoding(charset);
                                                }

                                                if (_tran_cs == mbfl_no_encoding_invalid) {
                                                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unsupported charset \"%s\" - will be regarded as ascii", charset); 
                                                        _tran_cs = mbfl_no_encoding_ascii;
                                                }
                                                tran_cs = _tran_cs;
                                        }
                                }
                        }
                }
                suppressed_hdrs.cnt_type = 1;
        }

        if (zend_hash_find(&ht_headers, "CONTENT-TRANSFER-ENCODING", sizeof("CONTENT-TRANSFER-ENCODING") - 1, (void **)&s) == SUCCESS) {
                enum mbfl_no_encoding _body_enc;
                SEPARATE_SMART_STR(s);
                smart_str_0(s);

                _body_enc = mbfl_name2no_encoding(s->c);
                switch (_body_enc) {
                        case mbfl_no_encoding_base64:
                        case mbfl_no_encoding_7bit:
                        case mbfl_no_encoding_8bit:
                                body_enc = _body_enc;
                                break;

                        default:
                                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unsupported transfer encoding \"%s\" - will be regarded as 8bit", s->c); 
                                body_enc =      mbfl_no_encoding_8bit;
                                break;
                }
                suppressed_hdrs.cnt_trans_enc = 1;
        }

        /* To: */
        if (to != NULL) {
                if (to_len > 0) {
                        to_r = estrndup(to, to_len);
                        for (; to_len; to_len--) {
                                if (!isspace((unsigned char) to_r[to_len - 1])) {
                                        break;
                                }
                                to_r[to_len - 1] = '\0';
                        }
                        for (i = 0; to_r[i]; i++) {
                        if (iscntrl((unsigned char) to_r[i])) {
                                /* According to RFC 822, section 3.1.1 long headers may be separated into
                                 * parts using CRLF followed at least one linear-white-space character ('\t' or ' ').
                                 * To prevent these separators from being replaced with a space, we use the
                                 * SKIP_LONG_HEADER_SEP_MBSTRING to skip over them.
                                 */
                                SKIP_LONG_HEADER_SEP_MBSTRING(to_r, i);
                                to_r[i] = ' ';
                        }
                        }
                } else {
                        to_r = to;
                }
        } else {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Missing To: field");
                err = 1;
        }

        /* Subject: */
        if (subject != NULL && subject_len >= 0) {
                orig_str.no_language = MBSTRG(language);
                orig_str.val = (unsigned char *)subject;
                orig_str.len = subject_len;
                orig_str.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;
                if (orig_str.no_encoding == mbfl_no_encoding_invalid || orig_str.no_encoding == mbfl_no_encoding_pass) {
                        const mbfl_encoding *encoding = mbfl_identify_encoding2(&orig_str, MBSTRG(current_detect_order_list), MBSTRG(current_detect_order_list_size), MBSTRG(strict_detection));
                        orig_str.no_encoding = encoding ? encoding->no_encoding: mbfl_no_encoding_invalid;
                }
                pstr = mbfl_mime_header_encode(&orig_str, &conv_str, tran_cs, head_enc, "\n", sizeof("Subject: [PHP-jp nnnnnnnn]"));
                if (pstr != NULL) {
                        subject_buf = subject = (char *)pstr->val;
                }
        } else {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Missing Subject: field");
                err = 1;
        }

        /* message body */
        if (message != NULL) {
                orig_str.no_language = MBSTRG(language);
                orig_str.val = (unsigned char *)message;
                orig_str.len = (unsigned int)message_len;
                orig_str.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;

                if (orig_str.no_encoding == mbfl_no_encoding_invalid || orig_str.no_encoding == mbfl_no_encoding_pass) {
                        const mbfl_encoding *encoding = mbfl_identify_encoding2(&orig_str, MBSTRG(current_detect_order_list), MBSTRG(current_detect_order_list_size), MBSTRG(strict_detection));
                        orig_str.no_encoding = encoding ? encoding->no_encoding: mbfl_no_encoding_invalid;
                }

                pstr = NULL;
                {
                        mbfl_string tmpstr;

                        if (mbfl_convert_encoding(&orig_str, &tmpstr, tran_cs) != NULL) {
                                tmpstr.no_encoding=mbfl_no_encoding_8bit;
                                pstr = mbfl_convert_encoding(&tmpstr, &conv_str, body_enc);
                                efree(tmpstr.val);
                        }
                }
                if (pstr != NULL) {
                        message_buf = message = (char *)pstr->val;
                }
        } else {
                /* this is not really an error, so it is allowed. */
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Empty message body");
                message = NULL;
        }

        /* other headers */
#define PHP_MBSTR_MAIL_MIME_HEADER1 "MIME-Version: 1.0"
#define PHP_MBSTR_MAIL_MIME_HEADER2 "Content-Type: text/plain"
#define PHP_MBSTR_MAIL_MIME_HEADER3 "; charset="
#define PHP_MBSTR_MAIL_MIME_HEADER4 "Content-Transfer-Encoding: "
        if (headers != NULL) {
                p = headers;
                n = headers_len;
                mbfl_memory_device_strncat(&device, p, n);
                if (n > 0 && p[n - 1] != '\n') {
                        mbfl_memory_device_strncat(&device, "\n", 1);
                }
        }

        if (!zend_hash_exists(&ht_headers, "MIME-VERSION", sizeof("MIME-VERSION") - 1)) {
                mbfl_memory_device_strncat(&device, PHP_MBSTR_MAIL_MIME_HEADER1, sizeof(PHP_MBSTR_MAIL_MIME_HEADER1) - 1);
                mbfl_memory_device_strncat(&device, "\n", 1);
        }

        if (!suppressed_hdrs.cnt_type) {
                mbfl_memory_device_strncat(&device, PHP_MBSTR_MAIL_MIME_HEADER2, sizeof(PHP_MBSTR_MAIL_MIME_HEADER2) - 1);

                p = (char *)mbfl_no2preferred_mime_name(tran_cs);
                if (p != NULL) {
                        mbfl_memory_device_strncat(&device, PHP_MBSTR_MAIL_MIME_HEADER3, sizeof(PHP_MBSTR_MAIL_MIME_HEADER3) - 1);
                        mbfl_memory_device_strcat(&device, p);
                }
                mbfl_memory_device_strncat(&device, "\n", 1);
        }
        if (!suppressed_hdrs.cnt_trans_enc) {
                mbfl_memory_device_strncat(&device, PHP_MBSTR_MAIL_MIME_HEADER4, sizeof(PHP_MBSTR_MAIL_MIME_HEADER4) - 1);
                p = (char *)mbfl_no2preferred_mime_name(body_enc);
                if (p == NULL) {
                        p = "7bit";
                }
                mbfl_memory_device_strcat(&device, p);
                mbfl_memory_device_strncat(&device, "\n", 1);
        }

        mbfl_memory_device_unput(&device);
        mbfl_memory_device_output('\0', &device);
        headers = (char *)device.buffer;

        if (force_extra_parameters) {
                extra_cmd = php_escape_shell_cmd(force_extra_parameters);
        } else if (extra_cmd) {
                extra_cmd = php_escape_shell_cmd(extra_cmd);
        } 

        if (!err && php_mail(to_r, subject, message, headers, extra_cmd TSRMLS_CC)) {
                RETVAL_TRUE;
        } else {
                RETVAL_FALSE;
        }

        if (extra_cmd) {
                efree(extra_cmd);
        }
        if (to_r != to) {
                efree(to_r);
        }
        if (subject_buf) {
                efree((void *)subject_buf);
        }
        if (message_buf) {
                efree((void *)message_buf);
        }
        mbfl_memory_device_clear(&device);
        zend_hash_destroy(&ht_headers);
}

#undef SKIP_LONG_HEADER_SEP_MBSTRING
#undef MAIL_ASCIIZ_CHECK_MBSTRING
#undef APPEND_ONE_CHAR
#undef SEPARATE_SMART_STR
#undef PHP_MBSTR_MAIL_MIME_HEADER1
#undef PHP_MBSTR_MAIL_MIME_HEADER2
#undef PHP_MBSTR_MAIL_MIME_HEADER3
#undef PHP_MBSTR_MAIL_MIME_HEADER4
/* }}} */

/* {{{ proto mixed mb_get_info([string type])
   Returns the current settings of mbstring */
PHP_FUNCTION(mb_get_info)
{
        char *typ = NULL;
        int typ_len;
        size_t n;
        char *name;
        const struct mb_overload_def *over_func;
        zval *row1, *row2;
        const mbfl_language *lang = mbfl_no2language(MBSTRG(language));
        const mbfl_encoding **entry;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &typ, &typ_len) == FAILURE) {
                RETURN_FALSE;
        }

        if (!typ || !strcasecmp("all", typ)) {
                array_init(return_value);
                if (MBSTRG(current_internal_encoding)) {
                        add_assoc_string(return_value, "internal_encoding", (char *)MBSTRG(current_internal_encoding)->name, 1);
                }
                if (MBSTRG(http_input_identify)) {
                        add_assoc_string(return_value, "http_input", (char *)MBSTRG(http_input_identify)->name, 1);
                }
                if (MBSTRG(current_http_output_encoding)) {
                        add_assoc_string(return_value, "http_output", (char *)MBSTRG(current_http_output_encoding)->name, 1);
                }
                if ((name = (char *)zend_ini_string("mbstring.http_output_conv_mimetypes", sizeof("mbstring.http_output_conv_mimetypes"), 0)) != NULL) {
                        add_assoc_string(return_value, "http_output_conv_mimetypes", name, 1);
                }
                add_assoc_long(return_value, "func_overload", MBSTRG(func_overload));
                if (MBSTRG(func_overload)){
                        over_func = &(mb_ovld[0]);
                        MAKE_STD_ZVAL(row1);
                        array_init(row1);
                        while (over_func->type > 0) {
                                if ((MBSTRG(func_overload) & over_func->type) == over_func->type ) {
                                        add_assoc_string(row1, over_func->orig_func, over_func->ovld_func, 1);
                                }
                                over_func++;
                        }
                        add_assoc_zval(return_value, "func_overload_list", row1);
                } else {
                        add_assoc_string(return_value, "func_overload_list", "no overload", 1);
                }
                if (lang != NULL) {
                        if ((name = (char *)mbfl_no_encoding2name(lang->mail_charset)) != NULL) {
                                add_assoc_string(return_value, "mail_charset", name, 1);
                        }
                        if ((name = (char *)mbfl_no_encoding2name(lang->mail_header_encoding)) != NULL) {
                                add_assoc_string(return_value, "mail_header_encoding", name, 1);
                        }
                        if ((name = (char *)mbfl_no_encoding2name(lang->mail_body_encoding)) != NULL) {
                                add_assoc_string(return_value, "mail_body_encoding", name, 1);
                        }
                }
                add_assoc_long(return_value, "illegal_chars", MBSTRG(illegalchars));
                if (MBSTRG(encoding_translation)) {
                        add_assoc_string(return_value, "encoding_translation", "On", 1);
                } else {
                        add_assoc_string(return_value, "encoding_translation", "Off", 1);
                }
                if ((name = (char *)mbfl_no_language2name(MBSTRG(language))) != NULL) {
                        add_assoc_string(return_value, "language", name, 1);
                }               
                n = MBSTRG(current_detect_order_list_size);
                entry = MBSTRG(current_detect_order_list);
                if (n > 0) {
                        size_t i;
                        MAKE_STD_ZVAL(row2);
                        array_init(row2);
                        for (i = 0; i < n; i++) {
                                add_next_index_string(row2, (*entry)->name, 1);
                                entry++;
                        }
                        add_assoc_zval(return_value, "detect_order", row2);
                }
                if (MBSTRG(current_filter_illegal_mode) == MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
                        add_assoc_string(return_value, "substitute_character", "none", 1);
                } else if (MBSTRG(current_filter_illegal_mode) == MBFL_OUTPUTFILTER_ILLEGAL_MODE_LONG) {
                        add_assoc_string(return_value, "substitute_character", "long", 1);
                } else if (MBSTRG(current_filter_illegal_mode) == MBFL_OUTPUTFILTER_ILLEGAL_MODE_ENTITY) {
                        add_assoc_string(return_value, "substitute_character", "entity", 1);
                } else {
                        add_assoc_long(return_value, "substitute_character", MBSTRG(current_filter_illegal_substchar));
                }
                if (MBSTRG(strict_detection)) {
                        add_assoc_string(return_value, "strict_detection", "On", 1);
                } else {
                        add_assoc_string(return_value, "strict_detection", "Off", 1);
                }
        } else if (!strcasecmp("internal_encoding", typ)) {
                if (MBSTRG(current_internal_encoding)) {
                        RETVAL_STRING((char *)MBSTRG(current_internal_encoding)->name, 1);
                }               
        } else if (!strcasecmp("http_input", typ)) {
                if (MBSTRG(http_input_identify)) {
                        RETVAL_STRING((char *)MBSTRG(http_input_identify)->name, 1);
                }               
        } else if (!strcasecmp("http_output", typ)) {
                if (MBSTRG(current_http_output_encoding)) {
                        RETVAL_STRING((char *)MBSTRG(current_http_output_encoding)->name, 1);
                }               
        } else if (!strcasecmp("http_output_conv_mimetypes", typ)) {
                if ((name = (char *)zend_ini_string("mbstring.http_output_conv_mimetypes", sizeof("mbstring.http_output_conv_mimetypes"), 0)) != NULL) {
                        RETVAL_STRING(name, 1);
                }
        } else if (!strcasecmp("func_overload", typ)) {
                RETVAL_LONG(MBSTRG(func_overload));
        } else if (!strcasecmp("func_overload_list", typ)) {
                if (MBSTRG(func_overload)){
                                over_func = &(mb_ovld[0]);
                                array_init(return_value);
                                while (over_func->type > 0) {
                                        if ((MBSTRG(func_overload) & over_func->type) == over_func->type ) {
                                                add_assoc_string(return_value, over_func->orig_func, over_func->ovld_func, 1);
                                        }
                                        over_func++;
                                }
                } else {
                        RETVAL_STRING("no overload", 1);
                }
        } else if (!strcasecmp("mail_charset", typ)) {
                if (lang != NULL && (name = (char *)mbfl_no_encoding2name(lang->mail_charset)) != NULL) {
                        RETVAL_STRING(name, 1);
                }
        } else if (!strcasecmp("mail_header_encoding", typ)) {
                if (lang != NULL && (name = (char *)mbfl_no_encoding2name(lang->mail_header_encoding)) != NULL) {
                        RETVAL_STRING(name, 1);
                }
        } else if (!strcasecmp("mail_body_encoding", typ)) {
                if (lang != NULL && (name = (char *)mbfl_no_encoding2name(lang->mail_body_encoding)) != NULL) {
                        RETVAL_STRING(name, 1);
                }
        } else if (!strcasecmp("illegal_chars", typ)) {
                RETVAL_LONG(MBSTRG(illegalchars));
        } else if (!strcasecmp("encoding_translation", typ)) {
                if (MBSTRG(encoding_translation)) {
                        RETVAL_STRING("On", 1);
                } else {
                        RETVAL_STRING("Off", 1);
                }
        } else if (!strcasecmp("language", typ)) {
                if ((name = (char *)mbfl_no_language2name(MBSTRG(language))) != NULL) {
                        RETVAL_STRING(name, 1);
                }               
        } else if (!strcasecmp("detect_order", typ)) {
                n = MBSTRG(current_detect_order_list_size);
                entry = MBSTRG(current_detect_order_list);
                if (n > 0) {
                        size_t i;
                        array_init(return_value);
                        for (i = 0; i < n; i++) {
                                add_next_index_string(return_value, (*entry)->name, 1);
                                entry++;
                        }
                }
        } else if (!strcasecmp("substitute_character", typ)) {
                if (MBSTRG(current_filter_illegal_mode) == MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE) {
                        RETVAL_STRING("none", 1);
                } else if (MBSTRG(current_filter_illegal_mode) == MBFL_OUTPUTFILTER_ILLEGAL_MODE_LONG) {
                        RETVAL_STRING("long", 1);
                } else if (MBSTRG(current_filter_illegal_mode) == MBFL_OUTPUTFILTER_ILLEGAL_MODE_ENTITY) {
                        RETVAL_STRING("entity", 1);
                } else {
                        RETVAL_LONG(MBSTRG(current_filter_illegal_substchar));
                }
        } else if (!strcasecmp("strict_detection", typ)) {
                if (MBSTRG(strict_detection)) {
                        RETVAL_STRING("On", 1);
                } else {
                        RETVAL_STRING("Off", 1);
                }
        } else {
                RETURN_FALSE;
        }
}
/* }}} */

/* {{{ proto bool mb_check_encoding([string var[, string encoding]])
   Check if the string is valid for the specified encoding */
PHP_FUNCTION(mb_check_encoding)
{
        char *var = NULL;
        int var_len;
        char *enc = NULL;
        int enc_len;
        mbfl_buffer_converter *convd;
        const mbfl_encoding *encoding = MBSTRG(current_internal_encoding);
        mbfl_string string, result, *ret = NULL;
        long illegalchars = 0;

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|ss", &var, &var_len, &enc, &enc_len) == FAILURE) {
                RETURN_FALSE;
        }

        if (var == NULL) {
                RETURN_BOOL(MBSTRG(illegalchars) == 0);
        }

        if (enc != NULL) {
                encoding = mbfl_name2encoding(enc);
                if (!encoding || encoding == &mbfl_encoding_pass) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid encoding \"%s\"", enc);
                        RETURN_FALSE;
                }
        }

        convd = mbfl_buffer_converter_new2(encoding, encoding, 0);
        if (convd == NULL) {
                php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unable to create converter");
                RETURN_FALSE;
        }       
        mbfl_buffer_converter_illegal_mode(convd, MBFL_OUTPUTFILTER_ILLEGAL_MODE_NONE);
        mbfl_buffer_converter_illegal_substchar(convd, 0);      

        /* initialize string */
        mbfl_string_init_set(&string, mbfl_no_language_neutral, encoding->no_encoding);
        mbfl_string_init(&result);

        string.val = (unsigned char *)var;
        string.len = var_len;
        ret = mbfl_buffer_converter_feed_result(convd, &string, &result);
        illegalchars = mbfl_buffer_illegalchars(convd);
        mbfl_buffer_converter_delete(convd);

        RETVAL_FALSE;
        if (ret != NULL) {
                if (illegalchars == 0 && string.len == result.len && memcmp(string.val, result.val, string.len) == 0) {
                        RETVAL_TRUE;
                }
                mbfl_string_clear(&result);
        }
}
/* }}} */


/* {{{ php_mb_populate_current_detect_order_list */
static void php_mb_populate_current_detect_order_list(TSRMLS_D)
{
        const mbfl_encoding **entry = 0;
        size_t nentries;

        if (MBSTRG(current_detect_order_list)) {
                return;
        }

        if (MBSTRG(detect_order_list) && MBSTRG(detect_order_list_size)) {
                nentries = MBSTRG(detect_order_list_size);
                entry = (const mbfl_encoding **)safe_emalloc(nentries, sizeof(mbfl_encoding*), 0);
                memcpy(entry, MBSTRG(detect_order_list), sizeof(mbfl_encoding*) * nentries);
        } else {
                const enum mbfl_no_encoding *src = MBSTRG(default_detect_order_list);
                size_t i;
                nentries = MBSTRG(default_detect_order_list_size);
                entry = (const mbfl_encoding **)safe_emalloc(nentries, sizeof(mbfl_encoding*), 0);
                for (i = 0; i < nentries; i++) {
                        entry[i] = mbfl_no2encoding(src[i]);
                }
        }
        MBSTRG(current_detect_order_list) = entry;
        MBSTRG(current_detect_order_list_size) = nentries;
}

/* {{{ static int php_mb_encoding_translation() */
static int php_mb_encoding_translation(TSRMLS_D) 
{
        return MBSTRG(encoding_translation);
}
/* }}} */

/* {{{ MBSTRING_API size_t php_mb_mbchar_bytes_ex() */
MBSTRING_API size_t php_mb_mbchar_bytes_ex(const char *s, const mbfl_encoding *enc)
{
        if (enc != NULL) {
                if (enc->flag & MBFL_ENCTYPE_MBCS) {
                        if (enc->mblen_table != NULL) {
                                if (s != NULL) return enc->mblen_table[*(unsigned char *)s];
                        }
                } else if (enc->flag & (MBFL_ENCTYPE_WCS2BE | MBFL_ENCTYPE_WCS2LE)) {
                        return 2;
                } else if (enc->flag & (MBFL_ENCTYPE_WCS4BE | MBFL_ENCTYPE_WCS4LE)) {
                        return 4;
                }
        }
        return 1;
}
/* }}} */

/* {{{ MBSTRING_API size_t php_mb_mbchar_bytes() */
MBSTRING_API size_t php_mb_mbchar_bytes(const char *s TSRMLS_DC)
{
        return php_mb_mbchar_bytes_ex(s, MBSTRG(internal_encoding));
}
/* }}} */

/* {{{ MBSTRING_API char *php_mb_safe_strrchr_ex() */
MBSTRING_API char *php_mb_safe_strrchr_ex(const char *s, unsigned int c, size_t nbytes, const mbfl_encoding *enc)
{
        register const char *p = s;
        char *last=NULL;

        if (nbytes == (size_t)-1) {
                size_t nb = 0;

                while (*p != '\0') {
                        if (nb == 0) {
                                if ((unsigned char)*p == (unsigned char)c) {
                                        last = (char *)p;
                                }
                                nb = php_mb_mbchar_bytes_ex(p, enc);
                                if (nb == 0) {
                                        return NULL; /* something is going wrong! */
                                }
                        }
                        --nb;
                        ++p;
                }
        } else {
                register size_t bcnt = nbytes;
                register size_t nbytes_char;
                while (bcnt > 0) {
                        if ((unsigned char)*p == (unsigned char)c) {
                                last = (char *)p;
                        }
                        nbytes_char = php_mb_mbchar_bytes_ex(p, enc);
                        if (bcnt < nbytes_char) {
                                return NULL;
                        }
                        p += nbytes_char;
                        bcnt -= nbytes_char;
                }
        }
        return last;
}
/* }}} */

/* {{{ MBSTRING_API char *php_mb_safe_strrchr() */
MBSTRING_API char *php_mb_safe_strrchr(const char *s, unsigned int c, size_t nbytes TSRMLS_DC)
{
        return php_mb_safe_strrchr_ex(s, c, nbytes, MBSTRG(internal_encoding));
}
/* }}} */

/* {{{ MBSTRING_API int php_mb_stripos()
 */
MBSTRING_API int php_mb_stripos(int mode, const char *old_haystack, unsigned int old_haystack_len, const char *old_needle, unsigned int old_needle_len, long offset, const char *from_encoding TSRMLS_DC)
{
        int n;
        mbfl_string haystack, needle;
        n = -1;

        mbfl_string_init(&haystack);
        mbfl_string_init(&needle);
        haystack.no_language = MBSTRG(language);
        haystack.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;
        needle.no_language = MBSTRG(language);
        needle.no_encoding = MBSTRG(current_internal_encoding)->no_encoding;

        do {
                size_t len = 0;
                haystack.val = (unsigned char *)php_unicode_convert_case(PHP_UNICODE_CASE_UPPER, (char *)old_haystack, old_haystack_len, &len, from_encoding TSRMLS_CC);
                haystack.len = len;

                if (!haystack.val) {
                        break;
                }

                if (haystack.len <= 0) {
                        break;
                }

                needle.val = (unsigned char *)php_unicode_convert_case(PHP_UNICODE_CASE_UPPER, (char *)old_needle, old_needle_len, &len, from_encoding TSRMLS_CC);
                needle.len = len;

                if (!needle.val) {
                        break;
                }

                if (needle.len <= 0) {
                        break;
                }

                haystack.no_encoding = needle.no_encoding = mbfl_name2no_encoding(from_encoding);
                if (haystack.no_encoding == mbfl_no_encoding_invalid) {
                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Unknown encoding \"%s\"", from_encoding);
                        break;
                }

                {
                        int haystack_char_len = mbfl_strlen(&haystack);
 
                        if (mode) {
                                if ((offset > 0 && offset > haystack_char_len) ||
                                        (offset < 0 && -offset > haystack_char_len)) {
                                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Offset is greater than the length of haystack string");
                                        break;
                                }
                        } else {
                                if (offset < 0 || offset > haystack_char_len) {
                                        php_error_docref(NULL TSRMLS_CC, E_WARNING, "Offset not contained in string");
                                        break;
                                }
                        }
                }

                n = mbfl_strpos(&haystack, &needle, offset, mode);
        } while(0);

        if (haystack.val) {
                efree(haystack.val);
        }

        if (needle.val) {
                efree(needle.val);
        }

        return n;
}
/* }}} */

static void php_mb_gpc_get_detect_order(const zend_encoding ***list, size_t *list_size TSRMLS_DC) /* {{{ */
{
        *list = (const zend_encoding **)MBSTRG(http_input_list);
        *list_size = MBSTRG(http_input_list_size);
}
/* }}} */

static void php_mb_gpc_set_input_encoding(const zend_encoding *encoding TSRMLS_DC) /* {{{ */
{
        MBSTRG(http_input_identify) = (const mbfl_encoding*)encoding;
}
/* }}} */

#endif  /* HAVE_MBSTRING */

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 * vim600: fdm=marker
 * vim: noet sw=4 ts=4
 */

/* [<][>][^][v][top][bottom][index][help] */