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Task #306 - The myltibyte string library: Moving the functions for internal use behind the API into a separate file.

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skala
Ivan Tcholakov 16 years ago
parent c6ef2946aa
commit 2c517dab3d
2 changed files with 277 additions and 221 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 235
      main/inc/lib/multibyte_string_functions.lib.php
  2. 263
      main/inc/lib/multibyte_string_functions_internal.lib.php

235
main/inc/lib/multibyte_string_functions.lib.php
Unescape View File

@ -44,6 +44,7 @@
* php-extension if it is installed.
*/
/**
* ----------------------------------------------------------------------------
* A safe way to calculate binary lenght of a string (as number of bytes)
@ -70,6 +71,7 @@ function api_byte_count($string) {
//return strlen((binary)$string);
}
/**
* ----------------------------------------------------------------------------
* Multibyte string conversion functions
@ -298,6 +300,7 @@ function api_file_system_decode($string, $to_encoding = null) {
return api_convert_encoding($string, $to_encoding, api_get_file_system_encoding());
}
/**
* ----------------------------------------------------------------------------
* Common multibyte string functions
@ -1126,78 +1129,6 @@ function api_utf8_from_unicode($array, $unknown = '?') {
return implode($array);
}
// Reads case folding properties about a given character from a file-based "database".
// For internal use in this API only.
function _api_utf8_get_letter_case_properties($codepoint, $type = 'lower') {
static $config = array();
static $range = array();
if (!isset($range[$codepoint])) {
if ($codepoint > 128 && $codepoint < 256) {
$range[$codepoint] = '0080_00ff'; // Latin-1 Supplement
} elseif ($codepoint < 384) {
$range[$codepoint] = '0100_017f'; // Latin Extended-A
} elseif ($codepoint < 592) {
$range[$codepoint] = '0180_024F'; // Latin Extended-B
} elseif ($codepoint < 688) {
$range[$codepoint] = '0250_02af'; // IPA Extensions
} elseif ($codepoint >= 880 && $codepoint < 1024) {
$range[$codepoint] = '0370_03ff'; // Greek and Coptic
} elseif ($codepoint < 1280) {
$range[$codepoint] = '0400_04ff'; // Cyrillic
} elseif ($codepoint < 1328) {
$range[$codepoint] = '0500_052f'; // Cyrillic Supplement
} elseif ($codepoint < 1424) {
$range[$codepoint] = '0530_058f'; // Armenian
} elseif ($codepoint >= 7680 && $codepoint < 7936) {
$range[$codepoint] = '1e00_1eff'; // Latin Extended Additional
} elseif ($codepoint < 8192) {
$range[$codepoint] = '1f00_1fff'; // Greek Extended
} elseif ($codepoint >= 8448 && $codepoint < 8528) {
$range[$codepoint] = '2100_214f'; // Letterlike Symbols
} elseif ($codepoint < 8592) {
$range[$codepoint] = '2150_218f'; // Number Forms
} elseif ($codepoint >= 9312 && $codepoint < 9472) {
$range[$codepoint] = '2460_24ff'; // Enclosed Alphanumerics
} elseif ($codepoint >= 11264 && $codepoint < 11360) {
$range[$codepoint] = '2c00_2c5f'; // Glagolitic
} elseif ($codepoint < 11392) {
$range[$codepoint] = '2c60_2c7f'; // Latin Extended-C
} elseif ($codepoint < 11520) {
$range[$codepoint] = '2c80_2cff'; // Coptic
} elseif ($codepoint >= 65280 && $codepoint < 65520) {
$range[$codepoint] = 'ff00_ffef'; // Halfwidth and Fullwidth Forms
} else {
$range[$codepoint] = false;
}
if ($range[$codepoint] === false) {
return null;
}
if (!isset($config[$range[$codepoint]])) {
$file = dirname(__FILE__) . '/multibyte_string_database/casefolding/' . $range[$codepoint] . '.php';
if (file_exists($file)) {
include $file;
}
}
}
if ($range[$codepoint] === false || !isset($config[$range[$codepoint]])) {
return null;
}
$result = array();
$count = count($config[$range[$codepoint]]);
for ($i = 0; $i < $count; $i++) {
if ($type === 'lower' && $config[$range[$codepoint]][$i][$type][0] === $codepoint) {
$result[] = $config[$range[$codepoint]][$i];
} elseif ($type === 'upper' && $config[$range[$codepoint]][$i][$type] === $codepoint) {
$result[] = $config[$range[$codepoint]][$i];
}
}
return $result;
}
/**
* ----------------------------------------------------------------------------
@ -1559,16 +1490,6 @@ function api_in_array_nocase($needle, $haystack, $strict = false, $encoding = nu
return false;
}
// This is a helper callback function for internal purposes.
function _api_array_utf8_decode($variable, $encoding) {
if (is_array($variable)) {
return array_map('_api_array_utf8_decode', $variable, $encoding);
}
if (is_string($var)) {
return api_utf8_decode($variable, $encoding);
}
return $variable;
}
/**
* ----------------------------------------------------------------------------
@ -1676,6 +1597,7 @@ function _api_get_alpha_numerical_collator($language = null) {
return $collator[$language];
}
/**
* ----------------------------------------------------------------------------
* Sorting arrays
@ -2078,59 +2000,6 @@ function api_rsort(&$array, $sort_flag = SORT_REGULAR, $language = null, $encodi
return rsort($array, $sort_flag);
}
// Global variables used by the sorting functions, for internal use.
$_api_collator = null;
$_api_encoding = null;
// A string comparison function that serves sorting functions, for internal use.
function _api_cmp($string1, $string2) {
global $_api_collator, $_api_encoding;
$result = collator_compare($_api_collator, api_utf8_encode($string1, $_api_encoding), api_utf8_encode($string2, $_api_encoding));
return $result === false ? 0 : $result;
}
// A reverse string comparison function that serves sorting functions, for internal use.
function _api_rcmp($string1, $string2) {
global $_api_collator, $_api_encoding;
$result = collator_compare($_api_collator, api_utf8_encode($string2, $_api_encoding), api_utf8_encode($string1, $_api_encoding));
return $result === false ? 0 : $result;
}
// A case-insensitive string comparison function that serves sorting functions, for internal use.
function _api_casecmp($string1, $string2) {
global $_api_collator, $_api_encoding;
$result = collator_compare($_api_collator, api_strtolower(api_utf8_encode($string1, $_api_encoding), 'UTF-8'), api_strtolower(api_utf8_encode($string2, $_api_encoding), 'UTF-8'));
return $result === false ? 0 : $result;
}
// A reverse case-insensitive string comparison function that serves sorting functions, for internal use.
function _api_casercmp($string1, $string2) {
global $_api_collator, $_api_encoding;
$result = collator_compare($_api_collator, api_strtolower(api_utf8_encode($string2, $_api_encoding), 'UTF-8'), api_strtolower(api_utf8_encode($string1, $_api_encoding), 'UTF-8'));
return $result === false ? 0 : $result;
}
// A reverse function from strnatcmp(), for internal use.
function _api_strnatrcmp($string1, $string2) {
return strnatcmp($string2, $string1);
}
// A reverse function from strnatcasecmp(), for internal use.
function _api_strnatcasercmp($string1, $string2) {
return strnatcasecmp($string2, $string1);
}
// A fuction that translates sorting flag constants from php core to correspondent constants from intl extension, for internal use.
function _api_get_collator_sort_flag($sort_flag = SORT_REGULAR) {
switch ($sort_flag) {
case SORT_STRING:
case SORT_SORT_LOCALE_STRING:
return Collator::SORT_STRING;
case SORT_NUMERIC:
return Collator::SORT_NUMERIC;
}
return Collator::SORT_REGULAR;
}
//----------------------------------------------------------------------------
// Transliteration, converting ANSI and UTF-8 strings to ASCII strings
@ -2319,6 +2188,7 @@ function api_transliterate($string, $unknown = '?', $from_encoding = null) {
return $result;
}
/**
* ----------------------------------------------------------------------------
* Encoding management functions
@ -2768,6 +2638,7 @@ EUC-JP, EUCJP
return $supported[$encoding] ? true : false;
}
/**
* ----------------------------------------------------------------------------
* String validation functions concerning some encodings
@ -2980,6 +2851,7 @@ function api_is_valid_ascii($string) {
return ! preg_match('/[^\x00-\x7F]/S', $string);
}
/**
* ----------------------------------------------------------------------------
* Language management functions
@ -3029,6 +2901,7 @@ function api_get_latin1_compatible_languages() {
return $latin1_languages;
}
/**
* ----------------------------------------------------------------------------
* ICU locales (accessible through intl extension).
@ -3082,93 +2955,13 @@ function api_get_default_locale() {
return api_set_default_locale();
}
//----------------------------------------------------------------------------
// Multibyte string functions designed to upgrade the PHP5 mbstring extension
//----------------------------------------------------------------------------
// ---------- Multibyte string functions implemented in PHP 5.2.0+ -----------
// This is a multibyte replacement of strchr().
// This function exists in PHP 5 >= 5.2.0
// See http://php.net/manual/en/function.mb-strrchr
if (MBSTRING_INSTALLED && !function_exists('mb_strchr')) {
function mb_strchr($haystack, $needle, $part = false, $encoding = null) {
if (empty($encoding)) {
$encoding = mb_internal_encoding();
}
return mb_strstr($haystack, $needle, $part, $encoding);
}
}
// This is a multibyte replacement of stripos().
// This function exists in PHP 5 >= 5.2.0
// See http://php.net/manual/en/function.mb-stripos
if (MBSTRING_INSTALLED && !function_exists('mb_stripos')) {
function mb_stripos($haystack, $needle, $offset = 0, $encoding = null) {
if (empty($encoding)) {
$encoding = mb_internal_encoding();
}
return mb_strpos(mb_strtolower($haystack, $encoding), mb_strtolower($needle, $encoding), $offset, $encoding);
}
}
// This is a multibyte replacement of stristr().
// This function exists in PHP 5 >= 5.2.0
// See http://php.net/manual/en/function.mb-stristr
if (MBSTRING_INSTALLED && !function_exists('mb_stristr')) {
function mb_stristr($haystack, $needle, $part = false, $encoding = null) {
if (empty($encoding)) {
$encoding = mb_internal_encoding();
}
$pos = mb_strpos(mb_strtolower($haystack, $encoding), mb_strtolower($needle, $encoding), 0, $encoding);
if ($pos === false) {
return false;
}
elseif($part == true) {
return mb_substr($haystack, 0, $pos + 1, $encoding);
} else {
return mb_substr($haystack, $pos, mb_strlen($haystack, $encoding), $encoding);
}
}
}
// This is a multibyte replacement of strrchr().
// This function exists in PHP 5 >= 5.2.0
// See http://php.net/manual/en/function.mb-strrchr
if (MBSTRING_INSTALLED && !function_exists('mb_strrchr')) {
function mb_strrchr($haystack, $needle, $part = false, $encoding = null) {
if (empty($encoding)) {
$encoding = mb_internal_encoding();
}
$needle = mb_substr($needle, 0, 1, $encoding);
$pos = mb_strrpos($haystack, $needle, mb_strlen($haystack, $encoding) - 1, $encoding);
if ($pos === false) {
return false;
} elseif($part == true) {
return mb_substr($haystack, 0, $pos + 1, $encoding);
} else {
return mb_substr($haystack, $pos, mb_strlen($haystack, $encoding), $encoding);
}
}
}
/**
* ----------------------------------------------------------------------------
* Functions for internal use behind this API.
* ----------------------------------------------------------------------------
*/
// This is a multibyte replacement of strstr().
// This function exists in PHP 5 >= 5.2.0
// See http://php.net/manual/en/function.mb-strstr
if (MBSTRING_INSTALLED && !function_exists('mb_strstr')) {
function mb_strstr($haystack, $needle, $part = false, $encoding = null) {
if (empty($encoding)) {
$encoding = mb_internal_encoding();
}
$pos = mb_strpos($haystack, $needle, 0, $encoding);
if ($pos === false) {
return false;
} elseif($part == true) {
return mb_substr($haystack, 0, $pos + 1, $encoding);
} else {
return mb_substr($haystack, $pos, mb_strlen($haystack, $encoding), $encoding);
}
}
}
require_once dirname(__FILE__).'/multibyte_string_functions_internal.lib.php';
?>

263
main/inc/lib/multibyte_string_functions_internal.lib.php
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@ -0,0 +1,263 @@
<?php
/**
* ==============================================================================
* File: multibyte_string_functions_internal.lib.php
* Main API extension library for Dokeos 1.8.6+ LMS,
* contains functions for internal use only.
* License: GNU/GPL version 2 or later (Free Software Foundation)
* @author: Ivan Tcholakov, ivantcholakov@gmail.com, 2009
* @package dokeos.library
* ==============================================================================
*/
/**
* ----------------------------------------------------------------------------
* Appendix to "Common multibyte string functions"
* ----------------------------------------------------------------------------
*/
// Reads case folding properties about a given character from a file-based "database".
// For internal use in this API only.
function _api_utf8_get_letter_case_properties($codepoint, $type = 'lower') {
static $config = array();
static $range = array();
if (!isset($range[$codepoint])) {
if ($codepoint > 128 && $codepoint < 256) {
$range[$codepoint] = '0080_00ff'; // Latin-1 Supplement
} elseif ($codepoint < 384) {
$range[$codepoint] = '0100_017f'; // Latin Extended-A
} elseif ($codepoint < 592) {
$range[$codepoint] = '0180_024F'; // Latin Extended-B
} elseif ($codepoint < 688) {
$range[$codepoint] = '0250_02af'; // IPA Extensions
} elseif ($codepoint >= 880 && $codepoint < 1024) {
$range[$codepoint] = '0370_03ff'; // Greek and Coptic
} elseif ($codepoint < 1280) {
$range[$codepoint] = '0400_04ff'; // Cyrillic
} elseif ($codepoint < 1328) {
$range[$codepoint] = '0500_052f'; // Cyrillic Supplement
} elseif ($codepoint < 1424) {
$range[$codepoint] = '0530_058f'; // Armenian
} elseif ($codepoint >= 7680 && $codepoint < 7936) {
$range[$codepoint] = '1e00_1eff'; // Latin Extended Additional
} elseif ($codepoint < 8192) {
$range[$codepoint] = '1f00_1fff'; // Greek Extended
} elseif ($codepoint >= 8448 && $codepoint < 8528) {
$range[$codepoint] = '2100_214f'; // Letterlike Symbols
} elseif ($codepoint < 8592) {
$range[$codepoint] = '2150_218f'; // Number Forms
} elseif ($codepoint >= 9312 && $codepoint < 9472) {
$range[$codepoint] = '2460_24ff'; // Enclosed Alphanumerics
} elseif ($codepoint >= 11264 && $codepoint < 11360) {
$range[$codepoint] = '2c00_2c5f'; // Glagolitic
} elseif ($codepoint < 11392) {
$range[$codepoint] = '2c60_2c7f'; // Latin Extended-C
} elseif ($codepoint < 11520) {
$range[$codepoint] = '2c80_2cff'; // Coptic
} elseif ($codepoint >= 65280 && $codepoint < 65520) {
$range[$codepoint] = 'ff00_ffef'; // Halfwidth and Fullwidth Forms
} else {
$range[$codepoint] = false;
}
if ($range[$codepoint] === false) {
return null;
}
if (!isset($config[$range[$codepoint]])) {
$file = dirname(__FILE__) . '/multibyte_string_database/casefolding/' . $range[$codepoint] . '.php';
if (file_exists($file)) {
include $file;
}
}
}
if ($range[$codepoint] === false || !isset($config[$range[$codepoint]])) {
return null;
}
$result = array();
$count = count($config[$range[$codepoint]]);
for ($i = 0; $i < $count; $i++) {
if ($type === 'lower' && $config[$range[$codepoint]][$i][$type][0] === $codepoint) {
$result[] = $config[$range[$codepoint]][$i];
} elseif ($type === 'upper' && $config[$range[$codepoint]][$i][$type] === $codepoint) {
$result[] = $config[$range[$codepoint]][$i];
}
}
return $result;
}
/**
* ----------------------------------------------------------------------------
* Appendix to "Common sting operations with arrays"
* ----------------------------------------------------------------------------
*/
// This (callback) function convers from UTF-8 to other encoding.
// It works with arrays of strings too.
function _api_array_utf8_decode($variable, $encoding) {
if (is_array($variable)) {
return array_map('_api_array_utf8_decode', $variable, $encoding);
}
if (is_string($var)) {
return api_utf8_decode($variable, $encoding);
}
return $variable;
}
/**
* ----------------------------------------------------------------------------
* Appendix to "String comparison"
* ----------------------------------------------------------------------------
*/
// Global variables used by the sorting functions.
$_api_collator = null;
$_api_encoding = null;
// A string comparison function that serves sorting functions.
function _api_cmp($string1, $string2) {
global $_api_collator, $_api_encoding;
$result = collator_compare($_api_collator, api_utf8_encode($string1, $_api_encoding), api_utf8_encode($string2, $_api_encoding));
return $result === false ? 0 : $result;
}
// A reverse string comparison function that serves sorting functions.
function _api_rcmp($string1, $string2) {
global $_api_collator, $_api_encoding;
$result = collator_compare($_api_collator, api_utf8_encode($string2, $_api_encoding), api_utf8_encode($string1, $_api_encoding));
return $result === false ? 0 : $result;
}
// A case-insensitive string comparison function that serves sorting functions.
function _api_casecmp($string1, $string2) {
global $_api_collator, $_api_encoding;
$result = collator_compare($_api_collator, api_strtolower(api_utf8_encode($string1, $_api_encoding), 'UTF-8'), api_strtolower(api_utf8_encode($string2, $_api_encoding), 'UTF-8'));
return $result === false ? 0 : $result;
}
// A reverse case-insensitive string comparison function that serves sorting functions.
function _api_casercmp($string1, $string2) {
global $_api_collator, $_api_encoding;
$result = collator_compare($_api_collator, api_strtolower(api_utf8_encode($string2, $_api_encoding), 'UTF-8'), api_strtolower(api_utf8_encode($string1, $_api_encoding), 'UTF-8'));
return $result === false ? 0 : $result;
}
// A reverse function from strnatcmp().
function _api_strnatrcmp($string1, $string2) {
return strnatcmp($string2, $string1);
}
// A reverse function from strnatcasecmp().
function _api_strnatcasercmp($string1, $string2) {
return strnatcasecmp($string2, $string1);
}
// A fuction that translates sorting flag constants from php core to correspondent constants from intl extension.
function _api_get_collator_sort_flag($sort_flag = SORT_REGULAR) {
switch ($sort_flag) {
case SORT_STRING:
case SORT_SORT_LOCALE_STRING:
return Collator::SORT_STRING;
case SORT_NUMERIC:
return Collator::SORT_NUMERIC;
}
return Collator::SORT_REGULAR;
}
/**
* ----------------------------------------------------------------------------
* Upgrading the PHP5 mbstring extension
* ----------------------------------------------------------------------------
*/
// This is a multibyte replacement of strchr().
// This function exists in PHP 5 >= 5.2.0
// See http://php.net/manual/en/function.mb-strrchr
if (MBSTRING_INSTALLED && !function_exists('mb_strchr')) {
function mb_strchr($haystack, $needle, $part = false, $encoding = null) {
if (empty($encoding)) {
$encoding = mb_internal_encoding();
}
return mb_strstr($haystack, $needle, $part, $encoding);
}
}
// This is a multibyte replacement of stripos().
// This function exists in PHP 5 >= 5.2.0
// See http://php.net/manual/en/function.mb-stripos
if (MBSTRING_INSTALLED && !function_exists('mb_stripos')) {
function mb_stripos($haystack, $needle, $offset = 0, $encoding = null) {
if (empty($encoding)) {
$encoding = mb_internal_encoding();
}
return mb_strpos(mb_strtolower($haystack, $encoding), mb_strtolower($needle, $encoding), $offset, $encoding);
}
}
// This is a multibyte replacement of stristr().
// This function exists in PHP 5 >= 5.2.0
// See http://php.net/manual/en/function.mb-stristr
if (MBSTRING_INSTALLED && !function_exists('mb_stristr')) {
function mb_stristr($haystack, $needle, $part = false, $encoding = null) {
if (empty($encoding)) {
$encoding = mb_internal_encoding();
}
$pos = mb_strpos(mb_strtolower($haystack, $encoding), mb_strtolower($needle, $encoding), 0, $encoding);
if ($pos === false) {
return false;
}
elseif($part == true) {
return mb_substr($haystack, 0, $pos + 1, $encoding);
} else {
return mb_substr($haystack, $pos, mb_strlen($haystack, $encoding), $encoding);
}
}
}
// This is a multibyte replacement of strrchr().
// This function exists in PHP 5 >= 5.2.0
// See http://php.net/manual/en/function.mb-strrchr
if (MBSTRING_INSTALLED && !function_exists('mb_strrchr')) {
function mb_strrchr($haystack, $needle, $part = false, $encoding = null) {
if (empty($encoding)) {
$encoding = mb_internal_encoding();
}
$needle = mb_substr($needle, 0, 1, $encoding);
$pos = mb_strrpos($haystack, $needle, mb_strlen($haystack, $encoding) - 1, $encoding);
if ($pos === false) {
return false;
} elseif($part == true) {
return mb_substr($haystack, 0, $pos + 1, $encoding);
} else {
return mb_substr($haystack, $pos, mb_strlen($haystack, $encoding), $encoding);
}
}
}
// This is a multibyte replacement of strstr().
// This function exists in PHP 5 >= 5.2.0
// See http://php.net/manual/en/function.mb-strstr
if (MBSTRING_INSTALLED && !function_exists('mb_strstr')) {
function mb_strstr($haystack, $needle, $part = false, $encoding = null) {
if (empty($encoding)) {
$encoding = mb_internal_encoding();
}
$pos = mb_strpos($haystack, $needle, 0, $encoding);
if ($pos === false) {
return false;
} elseif($part == true) {
return mb_substr($haystack, 0, $pos + 1, $encoding);
} else {
return mb_substr($haystack, $pos, mb_strlen($haystack, $encoding), $encoding);
}
}
}
?>
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