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1189 lines
40 KiB
1189 lines
40 KiB
<?php
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/**
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* CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
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* Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
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*
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* Licensed under The MIT License
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* For full copyright and license information, please see the LICENSE.txt
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* Redistributions of files must retain the above copyright notice.
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*
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* @copyright Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
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* @link https://cakephp.org CakePHP(tm) Project
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* @since 1.2.0
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* @license https://opensource.org/licenses/mit-license.php MIT License
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*/
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namespace Cake\Utility;
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use InvalidArgumentException;
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/**
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* Text handling methods.
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*/
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class Text
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{
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/**
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* Default transliterator.
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*
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* @var \Transliterator Transliterator instance.
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*/
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protected static $_defaultTransliterator;
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/**
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* Default transliterator id string.
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*
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* @var string $_defaultTransliteratorId Transliterator identifier string.
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*/
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protected static $_defaultTransliteratorId = 'Any-Latin; Latin-ASCII; [\u0080-\u7fff] remove';
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/**
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* Default html tags who must not be count for truncate text.
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*
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* @var array
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*/
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protected static $_defaultHtmlNoCount = [
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'style',
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'script',
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];
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/**
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* Generate a random UUID version 4
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*
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* Warning: This method should not be used as a random seed for any cryptographic operations.
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* Instead you should use the openssl or mcrypt extensions.
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*
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* It should also not be used to create identifiers that have security implications, such as
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* 'unguessable' URL identifiers. Instead you should use `Security::randomBytes()` for that.
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*
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* @see https://www.ietf.org/rfc/rfc4122.txt
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* @return string RFC 4122 UUID
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* @copyright Matt Farina MIT License https://github.com/lootils/uuid/blob/master/LICENSE
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*/
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public static function uuid()
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{
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$random = function_exists('random_int') ? 'random_int' : 'mt_rand';
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return sprintf(
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'%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
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// 32 bits for "time_low"
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$random(0, 65535),
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$random(0, 65535),
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// 16 bits for "time_mid"
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$random(0, 65535),
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// 12 bits before the 0100 of (version) 4 for "time_hi_and_version"
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$random(0, 4095) | 0x4000,
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// 16 bits, 8 bits for "clk_seq_hi_res",
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// 8 bits for "clk_seq_low",
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// two most significant bits holds zero and one for variant DCE1.1
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$random(0, 0x3fff) | 0x8000,
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// 48 bits for "node"
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$random(0, 65535),
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$random(0, 65535),
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$random(0, 65535)
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);
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}
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/**
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* Tokenizes a string using $separator, ignoring any instance of $separator that appears between
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* $leftBound and $rightBound.
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*
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* @param string $data The data to tokenize.
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* @param string $separator The token to split the data on.
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* @param string $leftBound The left boundary to ignore separators in.
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* @param string $rightBound The right boundary to ignore separators in.
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* @return string|string[] Array of tokens in $data or original input if empty.
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*/
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public static function tokenize($data, $separator = ',', $leftBound = '(', $rightBound = ')')
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{
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if (empty($data)) {
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return [];
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}
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$depth = 0;
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$offset = 0;
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$buffer = '';
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$results = [];
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$length = mb_strlen($data);
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$open = false;
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while ($offset <= $length) {
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$tmpOffset = -1;
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$offsets = [
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mb_strpos($data, $separator, $offset),
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mb_strpos($data, $leftBound, $offset),
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mb_strpos($data, $rightBound, $offset),
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];
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for ($i = 0; $i < 3; $i++) {
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if ($offsets[$i] !== false && ($offsets[$i] < $tmpOffset || $tmpOffset == -1)) {
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$tmpOffset = $offsets[$i];
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}
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}
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if ($tmpOffset !== -1) {
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$buffer .= mb_substr($data, $offset, $tmpOffset - $offset);
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$char = mb_substr($data, $tmpOffset, 1);
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if (!$depth && $char === $separator) {
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$results[] = $buffer;
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$buffer = '';
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} else {
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$buffer .= $char;
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}
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if ($leftBound !== $rightBound) {
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if ($char === $leftBound) {
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$depth++;
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}
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if ($char === $rightBound) {
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$depth--;
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}
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} else {
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if ($char === $leftBound) {
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if (!$open) {
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$depth++;
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$open = true;
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} else {
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$depth--;
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$open = false;
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}
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}
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}
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$tmpOffset += 1;
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$offset = $tmpOffset;
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} else {
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$results[] = $buffer . mb_substr($data, $offset);
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$offset = $length + 1;
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}
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}
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if (empty($results) && !empty($buffer)) {
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$results[] = $buffer;
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}
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if (!empty($results)) {
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return array_map('trim', $results);
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}
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return [];
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}
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/**
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* Replaces variable placeholders inside a $str with any given $data. Each key in the $data array
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* corresponds to a variable placeholder name in $str.
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* Example:
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* ```
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* Text::insert(':name is :age years old.', ['name' => 'Bob', 'age' => '65']);
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* ```
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* Returns: Bob is 65 years old.
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*
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* Available $options are:
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*
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* - before: The character or string in front of the name of the variable placeholder (Defaults to `:`)
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* - after: The character or string after the name of the variable placeholder (Defaults to null)
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* - escape: The character or string used to escape the before character / string (Defaults to `\`)
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* - format: A regex to use for matching variable placeholders. Default is: `/(?<!\\)\:%s/`
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* (Overwrites before, after, breaks escape / clean)
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* - clean: A boolean or array with instructions for Text::cleanInsert
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*
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* @param string $str A string containing variable placeholders
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* @param array $data A key => val array where each key stands for a placeholder variable name
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* to be replaced with val
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* @param array $options An array of options, see description above
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* @return string
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*/
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public static function insert($str, $data, array $options = [])
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{
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$defaults = [
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'before' => ':', 'after' => null, 'escape' => '\\', 'format' => null, 'clean' => false,
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];
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$options += $defaults;
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$format = $options['format'];
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$data = (array)$data;
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if (empty($data)) {
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return $options['clean'] ? static::cleanInsert($str, $options) : $str;
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}
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if (!isset($format)) {
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$format = sprintf(
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'/(?<!%s)%s%%s%s/',
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preg_quote($options['escape'], '/'),
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str_replace('%', '%%', preg_quote($options['before'], '/')),
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str_replace('%', '%%', preg_quote($options['after'], '/'))
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);
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}
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if (strpos($str, '?') !== false && is_numeric(key($data))) {
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$offset = 0;
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while (($pos = strpos($str, '?', $offset)) !== false) {
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$val = array_shift($data);
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$offset = $pos + strlen($val);
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$str = substr_replace($str, $val, $pos, 1);
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}
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return $options['clean'] ? static::cleanInsert($str, $options) : $str;
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}
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$dataKeys = array_keys($data);
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$hashKeys = array_map('crc32', $dataKeys);
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$tempData = array_combine($dataKeys, $hashKeys);
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krsort($tempData);
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foreach ($tempData as $key => $hashVal) {
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$key = sprintf($format, preg_quote($key, '/'));
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$str = preg_replace($key, $hashVal, $str);
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}
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$dataReplacements = array_combine($hashKeys, array_values($data));
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foreach ($dataReplacements as $tmpHash => $tmpValue) {
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$tmpValue = is_array($tmpValue) ? '' : $tmpValue;
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$str = str_replace($tmpHash, $tmpValue, $str);
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}
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if (!isset($options['format']) && isset($options['before'])) {
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$str = str_replace($options['escape'] . $options['before'], $options['before'], $str);
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}
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return $options['clean'] ? static::cleanInsert($str, $options) : $str;
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}
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/**
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* Cleans up a Text::insert() formatted string with given $options depending on the 'clean' key in
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* $options. The default method used is text but html is also available. The goal of this function
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* is to replace all whitespace and unneeded markup around placeholders that did not get replaced
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* by Text::insert().
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*
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* @param string $str String to clean.
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* @param array $options Options list.
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* @return string
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* @see \Cake\Utility\Text::insert()
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*/
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public static function cleanInsert($str, array $options)
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{
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$clean = $options['clean'];
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if (!$clean) {
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return $str;
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}
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if ($clean === true) {
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$clean = ['method' => 'text'];
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}
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if (!is_array($clean)) {
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$clean = ['method' => $options['clean']];
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}
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switch ($clean['method']) {
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case 'html':
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$clean += [
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'word' => '[\w,.]+',
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'andText' => true,
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'replacement' => '',
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];
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$kleenex = sprintf(
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'/[\s]*[a-z]+=(")(%s%s%s[\s]*)+\\1/i',
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preg_quote($options['before'], '/'),
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$clean['word'],
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preg_quote($options['after'], '/')
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);
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$str = preg_replace($kleenex, $clean['replacement'], $str);
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if ($clean['andText']) {
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$options['clean'] = ['method' => 'text'];
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$str = static::cleanInsert($str, $options);
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}
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break;
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case 'text':
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$clean += [
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'word' => '[\w,.]+',
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'gap' => '[\s]*(?:(?:and|or)[\s]*)?',
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'replacement' => '',
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];
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$kleenex = sprintf(
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'/(%s%s%s%s|%s%s%s%s)/',
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preg_quote($options['before'], '/'),
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$clean['word'],
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preg_quote($options['after'], '/'),
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$clean['gap'],
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$clean['gap'],
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preg_quote($options['before'], '/'),
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$clean['word'],
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preg_quote($options['after'], '/')
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);
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$str = preg_replace($kleenex, $clean['replacement'], $str);
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break;
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}
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return $str;
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}
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/**
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* Wraps text to a specific width, can optionally wrap at word breaks.
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*
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* ### Options
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*
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* - `width` The width to wrap to. Defaults to 72.
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* - `wordWrap` Only wrap on words breaks (spaces) Defaults to true.
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* - `indent` String to indent with. Defaults to null.
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* - `indentAt` 0 based index to start indenting at. Defaults to 0.
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*
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* @param string $text The text to format.
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* @param array|int $options Array of options to use, or an integer to wrap the text to.
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* @return string Formatted text.
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*/
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public static function wrap($text, $options = [])
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{
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if (is_numeric($options)) {
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$options = ['width' => $options];
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}
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$options += ['width' => 72, 'wordWrap' => true, 'indent' => null, 'indentAt' => 0];
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if ($options['wordWrap']) {
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$wrapped = self::wordWrap($text, $options['width'], "\n");
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} else {
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$wrapped = trim(chunk_split($text, $options['width'] - 1, "\n"));
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}
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if (!empty($options['indent'])) {
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$chunks = explode("\n", $wrapped);
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for ($i = $options['indentAt'], $len = count($chunks); $i < $len; $i++) {
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$chunks[$i] = $options['indent'] . $chunks[$i];
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}
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$wrapped = implode("\n", $chunks);
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}
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return $wrapped;
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}
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/**
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* Wraps a complete block of text to a specific width, can optionally wrap
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* at word breaks.
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*
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* ### Options
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*
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* - `width` The width to wrap to. Defaults to 72.
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* - `wordWrap` Only wrap on words breaks (spaces) Defaults to true.
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* - `indent` String to indent with. Defaults to null.
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* - `indentAt` 0 based index to start indenting at. Defaults to 0.
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*
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* @param string $text The text to format.
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* @param array|int $options Array of options to use, or an integer to wrap the text to.
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* @return string Formatted text.
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*/
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public static function wrapBlock($text, $options = [])
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{
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if (is_numeric($options)) {
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$options = ['width' => $options];
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}
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$options += ['width' => 72, 'wordWrap' => true, 'indent' => null, 'indentAt' => 0];
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if (!empty($options['indentAt']) && $options['indentAt'] === 0) {
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$indentLength = !empty($options['indent']) ? strlen($options['indent']) : 0;
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$options['width'] -= $indentLength;
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return self::wrap($text, $options);
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}
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$wrapped = self::wrap($text, $options);
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if (!empty($options['indent'])) {
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$indentationLength = mb_strlen($options['indent']);
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$chunks = explode("\n", $wrapped);
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$count = count($chunks);
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if ($count < 2) {
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return $wrapped;
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}
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$toRewrap = '';
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for ($i = $options['indentAt']; $i < $count; $i++) {
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$toRewrap .= mb_substr($chunks[$i], $indentationLength) . ' ';
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unset($chunks[$i]);
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}
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$options['width'] -= $indentationLength;
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$options['indentAt'] = 0;
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$rewrapped = self::wrap($toRewrap, $options);
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$newChunks = explode("\n", $rewrapped);
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$chunks = array_merge($chunks, $newChunks);
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$wrapped = implode("\n", $chunks);
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}
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return $wrapped;
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}
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|
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/**
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* Unicode and newline aware version of wordwrap.
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*
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* @param string $text The text to format.
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* @param int $width The width to wrap to. Defaults to 72.
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* @param string $break The line is broken using the optional break parameter. Defaults to '\n'.
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* @param bool $cut If the cut is set to true, the string is always wrapped at the specified width.
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* @return string Formatted text.
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*/
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public static function wordWrap($text, $width = 72, $break = "\n", $cut = false)
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{
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$paragraphs = explode($break, $text);
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foreach ($paragraphs as &$paragraph) {
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$paragraph = static::_wordWrap($paragraph, $width, $break, $cut);
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}
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return implode($break, $paragraphs);
|
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}
|
|
|
|
/**
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* Unicode aware version of wordwrap as helper method.
|
|
*
|
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* @param string $text The text to format.
|
|
* @param int $width The width to wrap to. Defaults to 72.
|
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* @param string $break The line is broken using the optional break parameter. Defaults to '\n'.
|
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* @param bool $cut If the cut is set to true, the string is always wrapped at the specified width.
|
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* @return string Formatted text.
|
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*/
|
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protected static function _wordWrap($text, $width = 72, $break = "\n", $cut = false)
|
|
{
|
|
if ($cut) {
|
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$parts = [];
|
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while (mb_strlen($text) > 0) {
|
|
$part = mb_substr($text, 0, $width);
|
|
$parts[] = trim($part);
|
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$text = trim(mb_substr($text, mb_strlen($part)));
|
|
}
|
|
|
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return implode($break, $parts);
|
|
}
|
|
|
|
$parts = [];
|
|
while (mb_strlen($text) > 0) {
|
|
if ($width >= mb_strlen($text)) {
|
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$parts[] = trim($text);
|
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break;
|
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}
|
|
|
|
$part = mb_substr($text, 0, $width);
|
|
$nextChar = mb_substr($text, $width, 1);
|
|
if ($nextChar !== ' ') {
|
|
$breakAt = mb_strrpos($part, ' ');
|
|
if ($breakAt === false) {
|
|
$breakAt = mb_strpos($text, ' ', $width);
|
|
}
|
|
if ($breakAt === false) {
|
|
$parts[] = trim($text);
|
|
break;
|
|
}
|
|
$part = mb_substr($text, 0, $breakAt);
|
|
}
|
|
|
|
$part = trim($part);
|
|
$parts[] = $part;
|
|
$text = trim(mb_substr($text, mb_strlen($part)));
|
|
}
|
|
|
|
return implode($break, $parts);
|
|
}
|
|
|
|
/**
|
|
* Highlights a given phrase in a text. You can specify any expression in highlighter that
|
|
* may include the \1 expression to include the $phrase found.
|
|
*
|
|
* ### Options:
|
|
*
|
|
* - `format` The piece of HTML with that the phrase will be highlighted
|
|
* - `html` If true, will ignore any HTML tags, ensuring that only the correct text is highlighted
|
|
* - `regex` A custom regex rule that is used to match words, default is '|$tag|iu'
|
|
* - `limit` A limit, optional, defaults to -1 (none)
|
|
*
|
|
* @param string $text Text to search the phrase in.
|
|
* @param string|array $phrase The phrase or phrases that will be searched.
|
|
* @param array $options An array of HTML attributes and options.
|
|
* @return string The highlighted text
|
|
* @link https://book.cakephp.org/3/en/core-libraries/text.html#highlighting-substrings
|
|
*/
|
|
public static function highlight($text, $phrase, array $options = [])
|
|
{
|
|
if (empty($phrase)) {
|
|
return $text;
|
|
}
|
|
|
|
$defaults = [
|
|
'format' => '<span class="highlight">\1</span>',
|
|
'html' => false,
|
|
'regex' => '|%s|iu',
|
|
'limit' => -1,
|
|
];
|
|
$options += $defaults;
|
|
|
|
$html = $format = $limit = null;
|
|
/**
|
|
* @var bool $html
|
|
* @var string|array $format
|
|
* @var int $limit
|
|
*/
|
|
extract($options);
|
|
|
|
if (is_array($phrase)) {
|
|
$replace = [];
|
|
$with = [];
|
|
|
|
foreach ($phrase as $key => $segment) {
|
|
$segment = '(' . preg_quote($segment, '|') . ')';
|
|
if ($html) {
|
|
$segment = "(?![^<]+>)$segment(?![^<]+>)";
|
|
}
|
|
|
|
$with[] = is_array($format) ? $format[$key] : $format;
|
|
$replace[] = sprintf($options['regex'], $segment);
|
|
}
|
|
|
|
return preg_replace($replace, $with, $text, $limit);
|
|
}
|
|
|
|
$phrase = '(' . preg_quote($phrase, '|') . ')';
|
|
if ($html) {
|
|
$phrase = "(?![^<]+>)$phrase(?![^<]+>)";
|
|
}
|
|
|
|
return preg_replace(sprintf($options['regex'], $phrase), $format, $text, $limit);
|
|
}
|
|
|
|
/**
|
|
* Strips given text of all links (<a href=....).
|
|
*
|
|
* *Warning* This method is not an robust solution in preventing XSS
|
|
* or malicious HTML.
|
|
*
|
|
* @param string $text Text
|
|
* @return string The text without links
|
|
* @deprecated 3.2.12 This method will be removed in 4.0.0
|
|
*/
|
|
public static function stripLinks($text)
|
|
{
|
|
deprecationWarning('This method will be removed in 4.0.0.');
|
|
do {
|
|
$text = preg_replace('#</?a([/\s][^>]*)?(>|$)#i', '', $text, -1, $count);
|
|
} while ($count);
|
|
|
|
return $text;
|
|
}
|
|
|
|
/**
|
|
* Truncates text starting from the end.
|
|
*
|
|
* Cuts a string to the length of $length and replaces the first characters
|
|
* with the ellipsis if the text is longer than length.
|
|
*
|
|
* ### Options:
|
|
*
|
|
* - `ellipsis` Will be used as beginning and prepended to the trimmed string
|
|
* - `exact` If false, $text will not be cut mid-word
|
|
*
|
|
* @param string $text String to truncate.
|
|
* @param int $length Length of returned string, including ellipsis.
|
|
* @param array $options An array of options.
|
|
* @return string Trimmed string.
|
|
*/
|
|
public static function tail($text, $length = 100, array $options = [])
|
|
{
|
|
$default = [
|
|
'ellipsis' => '...', 'exact' => true,
|
|
];
|
|
$options += $default;
|
|
$exact = $ellipsis = null;
|
|
/**
|
|
* @var string $ellipsis
|
|
* @var bool $exact
|
|
*/
|
|
extract($options);
|
|
|
|
if (mb_strlen($text) <= $length) {
|
|
return $text;
|
|
}
|
|
|
|
$truncate = mb_substr($text, mb_strlen($text) - $length + mb_strlen($ellipsis));
|
|
if (!$exact) {
|
|
$spacepos = mb_strpos($truncate, ' ');
|
|
$truncate = $spacepos === false ? '' : trim(mb_substr($truncate, $spacepos));
|
|
}
|
|
|
|
return $ellipsis . $truncate;
|
|
}
|
|
|
|
/**
|
|
* Truncates text.
|
|
*
|
|
* Cuts a string to the length of $length and replaces the last characters
|
|
* with the ellipsis if the text is longer than length.
|
|
*
|
|
* ### Options:
|
|
*
|
|
* - `ellipsis` Will be used as ending and appended to the trimmed string
|
|
* - `exact` If false, $text will not be cut mid-word
|
|
* - `html` If true, HTML tags would be handled correctly
|
|
* - `trimWidth` If true, $text will be truncated with the width
|
|
*
|
|
* @param string $text String to truncate.
|
|
* @param int $length Length of returned string, including ellipsis.
|
|
* @param array $options An array of HTML attributes and options.
|
|
* @return string Trimmed string.
|
|
* @link https://book.cakephp.org/3/en/core-libraries/text.html#truncating-text
|
|
*/
|
|
public static function truncate($text, $length = 100, array $options = [])
|
|
{
|
|
$default = [
|
|
'ellipsis' => '...', 'exact' => true, 'html' => false, 'trimWidth' => false,
|
|
];
|
|
if (!empty($options['html']) && strtolower(mb_internal_encoding()) === 'utf-8') {
|
|
$default['ellipsis'] = "\xe2\x80\xa6";
|
|
}
|
|
$options += $default;
|
|
|
|
$prefix = '';
|
|
$suffix = $options['ellipsis'];
|
|
|
|
if ($options['html']) {
|
|
$ellipsisLength = self::_strlen(strip_tags($options['ellipsis']), $options);
|
|
|
|
$truncateLength = 0;
|
|
$totalLength = 0;
|
|
$openTags = [];
|
|
$truncate = '';
|
|
|
|
preg_match_all('/(<\/?([\w+]+)[^>]*>)?([^<>]*)/', $text, $tags, PREG_SET_ORDER);
|
|
foreach ($tags as $tag) {
|
|
$contentLength = 0;
|
|
if (!in_array($tag[2], static::$_defaultHtmlNoCount, true)) {
|
|
$contentLength = self::_strlen($tag[3], $options);
|
|
}
|
|
|
|
if ($truncate === '') {
|
|
if (!preg_match('/img|br|input|hr|area|base|basefont|col|frame|isindex|link|meta|param/i', $tag[2])) {
|
|
if (preg_match('/<[\w]+[^>]*>/', $tag[0])) {
|
|
array_unshift($openTags, $tag[2]);
|
|
} elseif (preg_match('/<\/([\w]+)[^>]*>/', $tag[0], $closeTag)) {
|
|
$pos = array_search($closeTag[1], $openTags, true);
|
|
if ($pos !== false) {
|
|
array_splice($openTags, $pos, 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
$prefix .= $tag[1];
|
|
|
|
if ($totalLength + $contentLength + $ellipsisLength > $length) {
|
|
$truncate = $tag[3];
|
|
$truncateLength = $length - $totalLength;
|
|
} else {
|
|
$prefix .= $tag[3];
|
|
}
|
|
}
|
|
|
|
$totalLength += $contentLength;
|
|
if ($totalLength > $length) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ($totalLength <= $length) {
|
|
return $text;
|
|
}
|
|
|
|
$text = $truncate;
|
|
$length = $truncateLength;
|
|
|
|
foreach ($openTags as $tag) {
|
|
$suffix .= '</' . $tag . '>';
|
|
}
|
|
} else {
|
|
if (self::_strlen($text, $options) <= $length) {
|
|
return $text;
|
|
}
|
|
$ellipsisLength = self::_strlen($options['ellipsis'], $options);
|
|
}
|
|
|
|
$result = self::_substr($text, 0, $length - $ellipsisLength, $options);
|
|
|
|
if (!$options['exact']) {
|
|
if (self::_substr($text, $length - $ellipsisLength, 1, $options) !== ' ') {
|
|
$result = self::_removeLastWord($result);
|
|
}
|
|
|
|
// If result is empty, then we don't need to count ellipsis in the cut.
|
|
if (!strlen($result)) {
|
|
$result = self::_substr($text, 0, $length, $options);
|
|
}
|
|
}
|
|
|
|
return $prefix . $result . $suffix;
|
|
}
|
|
|
|
/**
|
|
* Truncate text with specified width.
|
|
*
|
|
* @param string $text String to truncate.
|
|
* @param int $length Length of returned string, including ellipsis.
|
|
* @param array $options An array of HTML attributes and options.
|
|
* @return string Trimmed string.
|
|
* @see \Cake\Utility\Text::truncate()
|
|
*/
|
|
public static function truncateByWidth($text, $length = 100, array $options = [])
|
|
{
|
|
return static::truncate($text, $length, ['trimWidth' => true] + $options);
|
|
}
|
|
|
|
/**
|
|
* Get string length.
|
|
*
|
|
* ### Options:
|
|
*
|
|
* - `html` If true, HTML entities will be handled as decoded characters.
|
|
* - `trimWidth` If true, the width will return.
|
|
*
|
|
* @param string $text The string being checked for length
|
|
* @param array $options An array of options.
|
|
* @return int
|
|
*/
|
|
protected static function _strlen($text, array $options)
|
|
{
|
|
if (empty($options['trimWidth'])) {
|
|
$strlen = 'mb_strlen';
|
|
} else {
|
|
$strlen = 'mb_strwidth';
|
|
}
|
|
|
|
if (empty($options['html'])) {
|
|
return $strlen($text);
|
|
}
|
|
|
|
$pattern = '/&[0-9a-z]{2,8};|&#[0-9]{1,7};|&#x[0-9a-f]{1,6};/i';
|
|
$replace = preg_replace_callback(
|
|
$pattern,
|
|
function ($match) use ($strlen) {
|
|
$utf8 = html_entity_decode($match[0], ENT_HTML5 | ENT_QUOTES, 'UTF-8');
|
|
|
|
return str_repeat(' ', $strlen($utf8, 'UTF-8'));
|
|
},
|
|
$text
|
|
);
|
|
|
|
return $strlen($replace);
|
|
}
|
|
|
|
/**
|
|
* Return part of a string.
|
|
*
|
|
* ### Options:
|
|
*
|
|
* - `html` If true, HTML entities will be handled as decoded characters.
|
|
* - `trimWidth` If true, will be truncated with specified width.
|
|
*
|
|
* @param string $text The input string.
|
|
* @param int $start The position to begin extracting.
|
|
* @param int $length The desired length.
|
|
* @param array $options An array of options.
|
|
* @return string
|
|
*/
|
|
protected static function _substr($text, $start, $length, array $options)
|
|
{
|
|
if (empty($options['trimWidth'])) {
|
|
$substr = 'mb_substr';
|
|
} else {
|
|
$substr = 'mb_strimwidth';
|
|
}
|
|
|
|
$maxPosition = self::_strlen($text, ['trimWidth' => false] + $options);
|
|
if ($start < 0) {
|
|
$start += $maxPosition;
|
|
if ($start < 0) {
|
|
$start = 0;
|
|
}
|
|
}
|
|
if ($start >= $maxPosition) {
|
|
return '';
|
|
}
|
|
|
|
if ($length === null) {
|
|
$length = self::_strlen($text, $options);
|
|
}
|
|
|
|
if ($length < 0) {
|
|
$text = self::_substr($text, $start, null, $options);
|
|
$start = 0;
|
|
$length += self::_strlen($text, $options);
|
|
}
|
|
|
|
if ($length <= 0) {
|
|
return '';
|
|
}
|
|
|
|
if (empty($options['html'])) {
|
|
return (string)$substr($text, $start, $length);
|
|
}
|
|
|
|
$totalOffset = 0;
|
|
$totalLength = 0;
|
|
$result = '';
|
|
|
|
$pattern = '/(&[0-9a-z]{2,8};|&#[0-9]{1,7};|&#x[0-9a-f]{1,6};)/i';
|
|
$parts = preg_split($pattern, $text, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
|
|
foreach ($parts as $part) {
|
|
$offset = 0;
|
|
|
|
if ($totalOffset < $start) {
|
|
$len = self::_strlen($part, ['trimWidth' => false] + $options);
|
|
if ($totalOffset + $len <= $start) {
|
|
$totalOffset += $len;
|
|
continue;
|
|
}
|
|
|
|
$offset = $start - $totalOffset;
|
|
$totalOffset = $start;
|
|
}
|
|
|
|
$len = self::_strlen($part, $options);
|
|
if ($offset !== 0 || $totalLength + $len > $length) {
|
|
if (
|
|
strpos($part, '&') === 0 && preg_match($pattern, $part)
|
|
&& $part !== html_entity_decode($part, ENT_HTML5 | ENT_QUOTES, 'UTF-8')
|
|
) {
|
|
// Entities cannot be passed substr.
|
|
continue;
|
|
}
|
|
|
|
$part = $substr($part, $offset, $length - $totalLength);
|
|
$len = self::_strlen($part, $options);
|
|
}
|
|
|
|
$result .= $part;
|
|
$totalLength += $len;
|
|
if ($totalLength >= $length) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Removes the last word from the input text.
|
|
*
|
|
* @param string $text The input text
|
|
* @return string
|
|
*/
|
|
protected static function _removeLastWord($text)
|
|
{
|
|
$spacepos = mb_strrpos($text, ' ');
|
|
|
|
if ($spacepos !== false) {
|
|
$lastWord = mb_strrpos($text, $spacepos);
|
|
|
|
// Some languages are written without word separation.
|
|
// We recognize a string as a word if it doesn't contain any full-width characters.
|
|
if (mb_strwidth($lastWord) === mb_strlen($lastWord)) {
|
|
$text = mb_substr($text, 0, $spacepos);
|
|
}
|
|
|
|
return $text;
|
|
}
|
|
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Extracts an excerpt from the text surrounding the phrase with a number of characters on each side
|
|
* determined by radius.
|
|
*
|
|
* @param string $text String to search the phrase in
|
|
* @param string $phrase Phrase that will be searched for
|
|
* @param int $radius The amount of characters that will be returned on each side of the founded phrase
|
|
* @param string $ellipsis Ending that will be appended
|
|
* @return string Modified string
|
|
* @link https://book.cakephp.org/3/en/core-libraries/text.html#extracting-an-excerpt
|
|
*/
|
|
public static function excerpt($text, $phrase, $radius = 100, $ellipsis = '...')
|
|
{
|
|
if (empty($text) || empty($phrase)) {
|
|
return static::truncate($text, $radius * 2, ['ellipsis' => $ellipsis]);
|
|
}
|
|
|
|
$append = $prepend = $ellipsis;
|
|
|
|
$phraseLen = mb_strlen($phrase);
|
|
$textLen = mb_strlen($text);
|
|
|
|
$pos = mb_stripos($text, $phrase);
|
|
if ($pos === false) {
|
|
return mb_substr($text, 0, $radius) . $ellipsis;
|
|
}
|
|
|
|
$startPos = $pos - $radius;
|
|
if ($startPos <= 0) {
|
|
$startPos = 0;
|
|
$prepend = '';
|
|
}
|
|
|
|
$endPos = $pos + $phraseLen + $radius;
|
|
if ($endPos >= $textLen) {
|
|
$endPos = $textLen;
|
|
$append = '';
|
|
}
|
|
|
|
$excerpt = mb_substr($text, $startPos, $endPos - $startPos);
|
|
$excerpt = $prepend . $excerpt . $append;
|
|
|
|
return $excerpt;
|
|
}
|
|
|
|
/**
|
|
* Creates a comma separated list where the last two items are joined with 'and', forming natural language.
|
|
*
|
|
* @param string[] $list The list to be joined.
|
|
* @param string|null $and The word used to join the last and second last items together with. Defaults to 'and'.
|
|
* @param string $separator The separator used to join all the other items together. Defaults to ', '.
|
|
* @return string The glued together string.
|
|
* @link https://book.cakephp.org/3/en/core-libraries/text.html#converting-an-array-to-sentence-form
|
|
*/
|
|
public static function toList(array $list, $and = null, $separator = ', ')
|
|
{
|
|
if ($and === null) {
|
|
$and = __d('cake', 'and');
|
|
}
|
|
if (count($list) > 1) {
|
|
return implode($separator, array_slice($list, null, -1)) . ' ' . $and . ' ' . array_pop($list);
|
|
}
|
|
|
|
return array_pop($list);
|
|
}
|
|
|
|
/**
|
|
* Check if the string contain multibyte characters
|
|
*
|
|
* @param string $string value to test
|
|
* @return bool
|
|
*/
|
|
public static function isMultibyte($string)
|
|
{
|
|
$length = strlen($string);
|
|
|
|
for ($i = 0; $i < $length; $i++) {
|
|
$value = ord($string[$i]);
|
|
if ($value > 128) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Converts a multibyte character string
|
|
* to the decimal value of the character
|
|
*
|
|
* @param string $string String to convert.
|
|
* @return array
|
|
*/
|
|
public static function utf8($string)
|
|
{
|
|
$map = [];
|
|
|
|
$values = [];
|
|
$find = 1;
|
|
$length = strlen($string);
|
|
|
|
for ($i = 0; $i < $length; $i++) {
|
|
$value = ord($string[$i]);
|
|
|
|
if ($value < 128) {
|
|
$map[] = $value;
|
|
} else {
|
|
if (empty($values)) {
|
|
$find = ($value < 224) ? 2 : 3;
|
|
}
|
|
$values[] = $value;
|
|
|
|
if (count($values) === $find) {
|
|
if ($find == 3) {
|
|
$map[] = (($values[0] % 16) * 4096) + (($values[1] % 64) * 64) + ($values[2] % 64);
|
|
} else {
|
|
$map[] = (($values[0] % 32) * 64) + ($values[1] % 64);
|
|
}
|
|
$values = [];
|
|
$find = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
return $map;
|
|
}
|
|
|
|
/**
|
|
* Converts the decimal value of a multibyte character string
|
|
* to a string
|
|
*
|
|
* @param array $array Array
|
|
* @return string
|
|
*/
|
|
public static function ascii(array $array)
|
|
{
|
|
$ascii = '';
|
|
|
|
foreach ($array as $utf8) {
|
|
if ($utf8 < 128) {
|
|
$ascii .= chr($utf8);
|
|
} elseif ($utf8 < 2048) {
|
|
$ascii .= chr(192 + (($utf8 - ($utf8 % 64)) / 64));
|
|
$ascii .= chr(128 + ($utf8 % 64));
|
|
} else {
|
|
$ascii .= chr(224 + (($utf8 - ($utf8 % 4096)) / 4096));
|
|
$ascii .= chr(128 + ((($utf8 % 4096) - ($utf8 % 64)) / 64));
|
|
$ascii .= chr(128 + ($utf8 % 64));
|
|
}
|
|
}
|
|
|
|
return $ascii;
|
|
}
|
|
|
|
/**
|
|
* Converts filesize from human readable string to bytes
|
|
*
|
|
* @param string $size Size in human readable string like '5MB', '5M', '500B', '50kb' etc.
|
|
* @param mixed $default Value to be returned when invalid size was used, for example 'Unknown type'
|
|
* @return mixed Number of bytes as integer on success, `$default` on failure if not false
|
|
* @throws \InvalidArgumentException On invalid Unit type.
|
|
* @link https://book.cakephp.org/3/en/core-libraries/text.html#Cake\Utility\Text::parseFileSize
|
|
*/
|
|
public static function parseFileSize($size, $default = false)
|
|
{
|
|
if (ctype_digit($size)) {
|
|
return (int)$size;
|
|
}
|
|
$size = strtoupper($size);
|
|
|
|
$l = -2;
|
|
$i = array_search(substr($size, -2), ['KB', 'MB', 'GB', 'TB', 'PB'], true);
|
|
if ($i === false) {
|
|
$l = -1;
|
|
$i = array_search(substr($size, -1), ['K', 'M', 'G', 'T', 'P'], true);
|
|
}
|
|
if ($i !== false) {
|
|
$size = (float)substr($size, 0, $l);
|
|
|
|
return $size * pow(1024, $i + 1);
|
|
}
|
|
|
|
if (substr($size, -1) === 'B' && ctype_digit(substr($size, 0, -1))) {
|
|
$size = substr($size, 0, -1);
|
|
|
|
return (int)$size;
|
|
}
|
|
|
|
if ($default !== false) {
|
|
return $default;
|
|
}
|
|
throw new InvalidArgumentException('No unit type.');
|
|
}
|
|
|
|
/**
|
|
* Get the default transliterator.
|
|
*
|
|
* @return \Transliterator|null Either a Transliterator instance, or `null`
|
|
* in case no transliterator has been set yet.
|
|
* @since 3.7.0
|
|
*/
|
|
public static function getTransliterator()
|
|
{
|
|
return static::$_defaultTransliterator;
|
|
}
|
|
|
|
/**
|
|
* Set the default transliterator.
|
|
*
|
|
* @param \Transliterator $transliterator A `Transliterator` instance.
|
|
* @return void
|
|
* @since 3.7.0
|
|
*/
|
|
public static function setTransliterator(\Transliterator $transliterator)
|
|
{
|
|
static::$_defaultTransliterator = $transliterator;
|
|
}
|
|
|
|
/**
|
|
* Get default transliterator identifier string.
|
|
*
|
|
* @return string Transliterator identifier.
|
|
*/
|
|
public static function getTransliteratorId()
|
|
{
|
|
return static::$_defaultTransliteratorId;
|
|
}
|
|
|
|
/**
|
|
* Set default transliterator identifier string.
|
|
*
|
|
* @param string $transliteratorId Transliterator identifier.
|
|
* @return void
|
|
*/
|
|
public static function setTransliteratorId($transliteratorId)
|
|
{
|
|
static::setTransliterator(transliterator_create($transliteratorId));
|
|
static::$_defaultTransliteratorId = $transliteratorId;
|
|
}
|
|
|
|
/**
|
|
* Transliterate string.
|
|
*
|
|
* @param string $string String to transliterate.
|
|
* @param \Transliterator|string|null $transliterator Either a Transliterator
|
|
* instance, or a transliterator identifier string. If `null`, the default
|
|
* transliterator (identifier) set via `setTransliteratorId()` or
|
|
* `setTransliterator()` will be used.
|
|
* @return string
|
|
* @see https://secure.php.net/manual/en/transliterator.transliterate.php
|
|
*/
|
|
public static function transliterate($string, $transliterator = null)
|
|
{
|
|
if (!$transliterator) {
|
|
$transliterator = static::$_defaultTransliterator ?: static::$_defaultTransliteratorId;
|
|
}
|
|
|
|
return transliterator_transliterate($transliterator, $string);
|
|
}
|
|
|
|
/**
|
|
* Returns a string with all spaces converted to dashes (by default),
|
|
* characters transliterated to ASCII characters, and non word characters removed.
|
|
*
|
|
* ### Options:
|
|
*
|
|
* - `replacement`: Replacement string. Default '-'.
|
|
* - `transliteratorId`: A valid transliterator id string.
|
|
* If `null` (default) the transliterator (identifier) set via
|
|
* `setTransliteratorId()` or `setTransliterator()` will be used.
|
|
* If `false` no transliteration will be done, only non words will be removed.
|
|
* - `preserve`: Specific non-word character to preserve. Default `null`.
|
|
* For e.g. this option can be set to '.' to generate clean file names.
|
|
*
|
|
* @param string $string the string you want to slug
|
|
* @param array $options If string it will be use as replacement character
|
|
* or an array of options.
|
|
* @return string
|
|
* @see setTransliterator()
|
|
* @see setTransliteratorId()
|
|
*/
|
|
public static function slug($string, $options = [])
|
|
{
|
|
if (is_string($options)) {
|
|
$options = ['replacement' => $options];
|
|
}
|
|
$options += [
|
|
'replacement' => '-',
|
|
'transliteratorId' => null,
|
|
'preserve' => null,
|
|
];
|
|
|
|
if ($options['transliteratorId'] !== false) {
|
|
$string = static::transliterate($string, $options['transliteratorId']);
|
|
}
|
|
|
|
$regex = '^\p{Ll}\p{Lm}\p{Lo}\p{Lt}\p{Lu}\p{Nd}';
|
|
if ($options['preserve']) {
|
|
$regex .= preg_quote($options['preserve'], '/');
|
|
}
|
|
$quotedReplacement = preg_quote($options['replacement'], '/');
|
|
$map = [
|
|
'/[' . $regex . ']/mu' => $options['replacement'],
|
|
sprintf('/^[%s]+|[%s]+$/', $quotedReplacement, $quotedReplacement) => '',
|
|
];
|
|
if (is_string($options['replacement']) && strlen($options['replacement']) > 0) {
|
|
$map[sprintf('/[%s]+/mu', $quotedReplacement)] = $options['replacement'];
|
|
}
|
|
$string = preg_replace(array_keys($map), $map, $string);
|
|
|
|
return $string;
|
|
}
|
|
}
|
|
|