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https://github.com/kamilwylegala/cakephp2-php8.git
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1e231e9511
git-svn-id: https://svn.cakephp.org/repo/branches/1.2.x.x@7172 3807eeeb-6ff5-0310-8944-8be069107fe0
329 lines
No EOL
10 KiB
PHP
329 lines
No EOL
10 KiB
PHP
<?php
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/* SVN FILE: $Id$ */
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/**
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* Text Helper
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*
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* Text manipulations: Highlight, excerpt, truncate, strip of links, convert email addresses to mailto: links...
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*
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* PHP versions 4 and 5
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*
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* CakePHP(tm) : Rapid Development Framework <http://www.cakephp.org/>
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* Copyright 2005-2008, Cake Software Foundation, Inc.
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* 1785 E. Sahara Avenue, Suite 490-204
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* Las Vegas, Nevada 89104
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @filesource
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* @copyright Copyright 2005-2008, Cake Software Foundation, Inc.
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* @link http://www.cakefoundation.org/projects/info/cakephp CakePHP(tm) Project
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* @package cake
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* @subpackage cake.cake.libs.view.helpers
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* @since CakePHP(tm) v 0.10.0.1076
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* @version $Revision$
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* @modifiedby $LastChangedBy$
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* @lastmodified $Date$
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License
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*/
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/**
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* Included libraries.
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*
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*/
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if (!class_exists('HtmlHelper')) {
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App::import('Helper', 'Html');
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}
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/**
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* Text helper library.
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*
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* Text manipulations: Highlight, excerpt, truncate, strip of links, convert email addresses to mailto: links...
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*
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* @package cake
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* @subpackage cake.cake.libs.view.helpers
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*/
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class TextHelper extends AppHelper {
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/**
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* Highlights a given phrase in a text. You can specify any expression in highlighter that
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* may include the \1 expression to include the $phrase found.
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*
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* @param string $text Text to search the phrase in
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* @param string $phrase The phrase that will be searched
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* @param string $highlighter The piece of html with that the phrase will be highlighted
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* @param boolean $considerHtml If true, will ignore any HTML tags, ensuring that only the correct text is highlighted
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* @return string The highlighted text
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* @access public
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*/
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function highlight($text, $phrase, $highlighter = '<span class="highlight">\1</span>', $considerHtml = false) {
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if (empty($phrase)) {
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return $text;
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}
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if (is_array($phrase)) {
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$replace = array();
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$with = array();
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foreach ($phrase as $key => $value) {
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$key = $value;
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$value = $highlighter;
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$key = '(' . $key . ')';
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if ($considerHtml) {
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$key = '(?![^<]+>)' . $key . '(?![^<]+>)';
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}
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$replace[] = '|' . $key . '|iu';
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$with[] = empty($value) ? $highlighter : $value;
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}
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return preg_replace($replace, $with, $text);
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} else {
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$phrase = '(' . $phrase . ')';
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if ($considerHtml) {
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$phrase = '(?![^<]+>)' . $phrase . '(?![^<]+>)';
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}
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return preg_replace('|'.$phrase.'|iu', $highlighter, $text);
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}
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}
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/**
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* Strips given text of all links (<a href=....)
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*
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* @param string $text Text
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* @return string The text without links
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* @access public
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*/
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function stripLinks($text) {
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return preg_replace('|<a\s+[^>]+>|im', '', preg_replace('|<\/a>|im', '', $text));
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}
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/**
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* Adds links (<a href=....) to a given text, by finding text that begins with
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* strings like http:// and ftp://.
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*
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* @param string $text Text to add links to
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* @param array $htmlOptions Array of HTML options.
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* @return string The text with links
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* @access public
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*/
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function autoLinkUrls($text, $htmlOptions = array()) {
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$options = 'array(';
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foreach ($htmlOptions as $option => $value) {
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$value = var_export($value, true);
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$options .= "'$option' => $value, ";
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}
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$options .= ')';
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$text = preg_replace_callback('#(?<!href="|">)((?:http|https|ftp|nntp)://[^ <]+)#i', create_function('$matches',
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'$Html = new HtmlHelper(); $Html->tags = $Html->loadConfig(); return $Html->link($matches[0], $matches[0],' . $options . ');'), $text);
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return preg_replace_callback('#(?<!href="|">)(?<!http://|https://|ftp://|nntp://)(www\.[^\n\%\ <]+[^<\n\%\,\.\ <])(?<!\))#i',
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create_function('$matches', '$Html = new HtmlHelper(); $Html->tags = $Html->loadConfig(); return $Html->link($matches[0], "http://" . strtolower($matches[0]),' . $options . ');'), $text);
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}
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/**
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* Adds email links (<a href="mailto:....) to a given text.
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*
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* @param string $text Text
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* @param array $htmlOptions Array of HTML options.
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* @return string The text with links
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* @access public
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*/
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function autoLinkEmails($text, $htmlOptions = array()) {
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$options = 'array(';
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foreach ($htmlOptions as $option => $value) {
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$options .= "'$option' => '$value', ";
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}
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$options .= ')';
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return preg_replace_callback('#([_A-Za-z0-9+-]+(?:\.[_A-Za-z0-9+-]+)*@[A-Za-z0-9-]+(?:\.[A-Za-z0-9-]+)*)#',
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create_function('$matches', '$Html = new HtmlHelper(); $Html->tags = $Html->loadConfig(); return $Html->link($matches[0], "mailto:" . $matches[0],' . $options . ');'), $text);
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}
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/**
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* Convert all links and email adresses to HTML links.
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*
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* @param string $text Text
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* @param array $htmlOptions Array of HTML options.
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* @return string The text with links
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* @access public
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*/
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function autoLink($text, $htmlOptions = array()) {
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return $this->autoLinkEmails($this->autoLinkUrls($text, $htmlOptions), $htmlOptions);
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}
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/**
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* Truncates text.
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*
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* Cuts a string to the length of $length and replaces the last characters
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* with the ending if the text is longer than length.
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*
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* @param string $text String to truncate.
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* @param integer $length Length of returned string, including ellipsis.
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* @param mixed $ending If string, will be used as Ending and appended to the trimmed string. Can also be an associative array that can contain the last three params of this method.
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* @param boolean $exact If false, $text will not be cut mid-word
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* @param boolean $considerHtml If true, HTML tags would be handled correctly
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* @return string Trimmed string.
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*/
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function truncate($text, $length = 100, $ending = '...', $exact = true, $considerHtml = false) {
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if (is_array($ending)) {
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extract($ending);
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}
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if ($considerHtml) {
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if (strlen(preg_replace('/<.*?>/', '', $text)) <= $length) {
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return $text;
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}
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preg_match_all('/(<.+?>)?([^<>]*)/s', $text, $lines, PREG_SET_ORDER);
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$total_length = strlen($ending);
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$open_tags = array();
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$truncate = '';
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foreach ($lines as $line_matchings) {
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if (!empty($line_matchings[1])) {
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if (preg_match('/^<(\s*.+?\/\s*|\s*(img|br|input|hr|area|base|basefont|col|frame|isindex|link|meta|param)(\s.+?)?)>$/is', $line_matchings[1])) {
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} elseif (preg_match('/^<\s*\/([^\s]+?)\s*>$/s', $line_matchings[1], $tag_matchings)) {
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$pos = array_search($tag_matchings[1], $open_tags);
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if ($pos !== false) {
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unset($open_tags[$pos]);
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}
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} elseif (preg_match('/^<\s*([^\s>!]+).*?>$/s', $line_matchings[1], $tag_matchings)) {
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array_unshift($open_tags, strtolower($tag_matchings[1]));
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}
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$truncate .= $line_matchings[1];
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}
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$content_length = strlen(preg_replace('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|&#x[0-9a-f]{1,6};/i', ' ', $line_matchings[2]));
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if ($total_length+$content_length > $length) {
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$left = $length - $total_length;
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$entities_length = 0;
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if (preg_match_all('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|&#x[0-9a-f]{1,6};/i', $line_matchings[2], $entities, PREG_OFFSET_CAPTURE)) {
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foreach ($entities[0] as $entity) {
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if ($entity[1]+1-$entities_length <= $left) {
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$left--;
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$entities_length += strlen($entity[0]);
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} else {
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break;
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}
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}
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}
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$truncate .= substr($line_matchings[2], 0, $left+$entities_length);
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break;
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} else {
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$truncate .= $line_matchings[2];
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$total_length += $content_length;
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}
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if ($total_length >= $length) {
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break;
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}
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}
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} else {
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if (strlen($text) <= $length) {
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return $text;
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} else {
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$truncate = substr($text, 0, $length - strlen($ending));
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}
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}
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if (!$exact) {
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$spacepos = strrpos($truncate, ' ');
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if (isset($spacepos)) {
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$truncate = substr($truncate, 0, $spacepos);
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}
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}
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$truncate .= $ending;
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if ($considerHtml) {
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foreach ($open_tags as $tag) {
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$truncate .= '</' . $tag . '>';
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}
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}
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return $truncate;
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}
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/**
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* Alias for truncate().
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*
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* @see TextHelper::truncate()
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* @access public
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*/
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function trim() {
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$args = func_get_args();
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return call_user_func_array(array(&$this, 'truncate'), $args);
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}
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/**
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* Extracts an excerpt from the text surrounding the phrase with a number of characters on each side determined by radius.
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*
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* @param string $text String to search the phrase in
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* @param string $phrase Phrase that will be searched for
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* @param integer $radius The amount of characters that will be returned on each side of the founded phrase
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* @param string $ending Ending that will be appended
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* @return string Modified string
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* @access public
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*/
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function excerpt($text, $phrase, $radius = 100, $ending = "...") {
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if (empty($text) or empty($phrase)) {
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return $this->truncate($text, $radius * 2, $ending);
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}
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if ($radius < strlen($phrase)) {
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$radius = strlen($phrase);
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}
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$pos = strpos(strtolower($text), strtolower($phrase));
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$startPos = ife($pos <= $radius, 0, $pos - $radius);
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$endPos = ife($pos + strlen($phrase) + $radius >= strlen($text), strlen($text), $pos + strlen($phrase) + $radius);
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$excerpt = substr($text, $startPos, $endPos - $startPos);
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if ($startPos != 0) {
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$excerpt = substr_replace($excerpt, $ending, 0, strlen($phrase));
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}
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if ($endPos != strlen($text)) {
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$excerpt = substr_replace($excerpt, $ending, -strlen($phrase));
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}
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return $excerpt;
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}
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/**
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* Creates a comma separated list where the last two items are joined with 'and', forming natural English
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*
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* @param array $list The list to be joined
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* @return string
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* @access public
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*/
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function toList($list, $and = 'and') {
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$r = '';
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$c = count($list) - 1;
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foreach ($list as $i => $item) {
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$r .= $item;
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if ($c > 0 && $i < $c)
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{
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$r .= ($i < $c - 1 ? ', ' : " {$and} ");
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}
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}
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return $r;
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}
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/**
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* Text-to-html parser, similar to Textile or RedCloth, only with a little different syntax.
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*
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* @param string $text String to "flay"
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* @param boolean $allowHtml Set to true if if html is allowed
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* @return string "Flayed" text
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* @access public
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* @todo Change this. We need a real Textile parser.
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* @codeCoverageIgnoreStart
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*/
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function flay($text, $allowHtml = false) {
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trigger_error(__('(TextHelper::flay) Deprecated: the Flay library is no longer supported and will be removed in a future version.', true), E_USER_WARNING);
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if (!class_exists('Flay')) {
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uses('flay');
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}
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return Flay::toHtml($text, false, $allowHtml);
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}
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/**
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* @codeCoverageIgnoreEnd
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*/
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}
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?>
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