<?php
class BBCodeParser {
public $parsers = [
'code' => [
'pattern' => '/\[code\](.*?)\[\/code\]/s',
'callback' => 'highlightCode'
],
'bold' => [
'pattern' => '/\[b\](.*?)\[\/b\]/s',
'replace' => '<strong>$1</strong>',
],
'italic' => [
'pattern' => '/\[i\](.*?)\[\/i\]/s',
'replace' => '<em>$1</em>',
],
'underLine' => [
'pattern' => '/\[u\](.*?)\[\/u\]/s',
'replace' => '<u>$1</u>',
],
'lineThrough' => [
'pattern' => '/\[s\](.*?)\[\/s\]/s',
'replace' => '<strike>$1</strike>',
],
'fontSize' => [
'pattern' => '/\[size\=([1-5])\](.*?)\[\/size\]/s',
'replace' => '<font size="$1">$2</font>',
],
'fontColor' => [
'pattern' => '/\[color\=(#[A-f0-9]{6}|#[A-f0-9]{3})\](.*?)\[\/color\]/s',
'replace' => '<font color="$1">$2</font>',
'iterate' => 1,
],
'center' => [
'pattern' => '/\[center\](.*?)\[\/center\]/s',
'replace' => '<div style="text-align:center;">$1</div>',
],
'quote' => [
'pattern' => '/\[quote\](.*?)\[\/quote\]/s',
'replace' => '<blockquote>$1</blockquote>',
'iterate' => 3,
],
'namedQuote' => [
'pattern' => '/\[quote\=(.*?)\](.*)\[\/quote\]/s',
'replace' => '<blockquote>$2<small>$1</small></blockquote>',
'iterate' => 3,
],
'http' => [
'pattern' => '%\b(([\w-]+://?|www[.])[^\s()<>]+(?:\([\w\d]+\)|([^[:punct:]\s]|/)))%s',
'replace' => '<a href="$1">$1</a>',
],
'link' => [
'pattern' => '/\[url\](.*?)\[\/url\]/s',
'replace' => '<a href="$1">$1</a>',
],
'namedLink' => [
'pattern' => '/\[url\=(.*?)\](.*?)\[\/url\]/s',
'replace' => '<a href="$1">$2</a>',
],
/* 'image' => [
'pattern' => '/\[img\](.*?)\[\/img\]/s',
'callback' => 'imgReplace',
],
'orderedList' => [
'pattern' => '/\[list=1\](.*?)\[\/list\]/s',
'replace' => '<ol>$1</ol>',
],
'unorderedList' => [
'pattern' => '/\[list\](.*?)\[\/list\]/s',
'replace' => '<ul>$1</ul>',
],
'listItem' => [
'pattern' => '/\[\*\](.*)/',
'replace' => '<li>$1</li>',
],*/
'spoiler' => [
'pattern' => '/\[spoiler\](.*?)\[\/spoiler\]/s',
'callback' => 'spoilerText',
'iterate' => 1,
],
'shortSpoiler' => [
'pattern' => '/\[spoiler\=(.*?)\](.*?)\[\/spoiler\]/s',
'callback' => 'spoilerText',
'iterate' => 1,
],
'hide' => [
'pattern' => '/\[hide\](.*?)\[\/hide\]/s',
'callback' => 'hiddenText',
],
'youtube' => [
'pattern' => '/\[youtube\](.*?)\[\/youtube\]/s',
'replace' => '<iframe width="320" height="240" src="//www.youtube.com/embed/$1" frameborder="0" allowfullscreen></iframe>',
],
];
/**
* Метод парсинга BBCode
* @param string $source текст содержаший BBCode
* @return string распарсенный текст
*/
public function parse($source) {
$source = nl2br($source);
foreach ($this->parsers as $parser) {
$iterate = isset($parser['iterate']) ? $parser['iterate'] : 0;
for ($i = 0; $i <= $iterate; $i++) {
if (isset($parser['callback'])) {
$source = preg_replace_callback($parser['pattern'], [$this, $parser['callback']], $source);
} else {
$source = preg_replace($parser['pattern'], $parser['replace'], $source);
}
}
}
return $source;
}
public function clear($source) {
return $source = preg_replace('/\[(.*?)\]/', '', $source);
}
/**
* Обработка изображений
* @param array $match ссылка на изображение
* @return string картинка
*/
public function imgReplace($match) {
if (preg_match('/[\w\-]+\.(jpg|png|gif|jpeg)/', $match[1])) {
return '<img src="'.$match[1].'" class="img-responsive img-message" alt="image">';
} else {
return $match[1];
}
}
/**
* Подсветка кода
* @param callable $match массив элементов
* @return string текст с подсветкой
*/
public function highlightCode($match) {
//Чтобы bb-код и смайлы не работали внутри тега [code]
$match[1] = strtr($match[1], [':' => ':', '[' => '[']);
return '<pre class="prettyprint linenums">'.$match[1].'</pre>';
}
/**
* Скрытие текста под спойлер
* @param callable $match массив элементов
* @return string код спойлера
*/
public function spoilerText($match) {
$title = (empty($match[1]) || !isset($match[2])) ? 'Развернуть для просмотра' : $match[1];
$text = (empty($match[2])) ? !isset($match[2]) ? $match[1] : 'Текст отсуствует' : $match[2];
return '<div class="spoiler">
<b class="spoiler-title">'.$title.'</b>
<div class="spoiler-text" style="display: none;">'.$text.'</div>
</div>';
}
/**
* Скрытие текста от неавторизованных пользователей
* @param callable $match массив элементов
* @return string скрытый код
*/
public function hiddenText($match) {
if (empty($match[1])) $match[1] = 'Текст отсутствует';
return '<div class="hiding">
<span class="strong">Скрытый контент:</span> '.(User::check() ? $match[1] : 'Для просмотра необходимо авторизоваться!').
'</div>';
}
/**
* Обработка смайлов
* @param string $text Необработанный текст
* @return string Обработанный текст
*/
public function parseSmiles($source)
{
static $list_smiles;
if (empty($list_smiles)) {
if (! file_exists(STORAGE.'/temp/smiles.dat')) {
$smiles = Smile::all(['order' => 'LENGTH(code) desc']);
$smiles = App::arrayAssoc($smiles, 'code', 'name');
file_put_contents(STORAGE.'/temp/smiles.dat', serialize($smiles));
}
$list_smiles = unserialize(file_get_contents(STORAGE."/temp/smiles.dat"));
}
foreach ($list_smiles as $code => $smile) {
$source = str_replace($code, '<img src="/assets/img/smiles/'.$smile.'" alt="'.$code.'"> ', $source);
}
return $source;
}
/**
* Sets the parser pattern and replace.
* This can be used for new parsers or overwriting existing ones.
* @param string $name Parser name
* @param string $pattern Pattern
* @param string $replace Replace pattern
*/
public function setParser($name, $pattern, $replace) {
$this->parsers[$name] = [
'pattern' => $pattern,
'replace' => $replace
];
}
/**
* Limits the parsers to only those you specify
* @param mixed $only parsers
* @return object BBCodeParser object
*/
public function only($only = null) {
$only = (is_array($only)) ? $only : func_get_args();
$this->parsers = $this->arrayOnly($only);
return $this;
}
/**
* Removes the parsers you want to exclude
* @param mixed $except parsers
* @return object BBCodeParser object
*/
public function except($except = null) {
$except = (is_array($except)) ? $except : func_get_args();
$this->parsers = $this->arrayExcept($except);
return $this;
}
/**
* List of all available parsers
* @return array array of available parsers
*/
public function getAvailableParsers() {
return $this->availableParsers;
}
/**
* List of chosen parsers
* @return array array of parsers
*/
public function getParsers() {
return $this->parsers;
}
/**
* Filters all parsers that you don´t want
* @param array $only chosen parsers
* @return array parsers
*/
private function arrayOnly($only) {
return array_intersect_key($this->parsers, array_flip((array) $only));
}
/**
* Removes the parsers that you don´t want
* @param array $except parsers to exclude
* @return array parsers
*/
private function arrayExcept($excepts) {
return array_diff_key($this->parsers, array_flip((array) $excepts));
}
}