151 lines
3.2 KiB
PHP
151 lines
3.2 KiB
PHP
<?php
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class Markdown
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{
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static function processing($string)
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{
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$string = self::replaceHeaders($string);
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$string = self::replaceBold($string);
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$string = self::replaceItalic($string);
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$string = self::replaceUnderline($string);
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$string = self::replaceChars($string);
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$string = self::replaceUrls($string);
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return $string;
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}
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static function liteProcessing($string)
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{
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// $string = self::replaceHeaders($string);
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$string = self::replaceBold($string);
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$string = self::replaceItalic($string);
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$string = self::replaceUnderline($string);
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$string = self::replaceChars($string);
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$string = self::replaceUrls($string);
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return $string;
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}
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static private function replaceHeaders($string)
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{
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$pr = '(### (.{1,}))';
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$rep = '<h4>$1</h4>';
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$string = preg_replace($pr, $rep, $string);
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$pr = '(## (.{1,}))';
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$rep = '<h3>$1</h3>';
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$string = preg_replace($pr, $rep, $string);
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$pr = '(# (.{1,}))';
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$rep = '<h2>$1</h2>';
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$string = preg_replace($pr, $rep, $string);
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return $string;
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}
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static private function replaceBold($string)
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{
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$pr = '(\*{2}(.+?)\*{2})';
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$rep = '<b>$1</b>';
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return preg_replace($pr, $rep, $string);
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}
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static private function replaceItalic($string)
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{
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$pr = '(\*{1}(.+?)\*{1})';
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$rep = '<i>$1</i>';
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return preg_replace($pr, $rep, $string);
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}
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static private function replaceUnderline($string)
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{
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$pr = '(\_{1}(.+?)\_{1})';
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$rep = '<u>$1</u>';
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return preg_replace($pr, $rep, $string);
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}
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static private function replaceUrls($string)
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{
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$pr = '((https{0,1}:\/\/[\da-z\.-]+\.[a-z]{2,6})([\/\w\?=&#%+,-]|(\.[^\s]))*\/?)';
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$rep = '<a href="$0" title="$0" target="_blank">$1</a>';
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return preg_replace($pr, $rep, $string);
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}
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static private function replaceChars($string)
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{
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$pr = '((^|\s)-{2}($|\s))';
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$rep = '$1—$2';
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$string = preg_replace($pr, $rep, $string);
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$pr = '((^|\s)\((c|с)\)($|\s))';
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$rep = '$1©$3';
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$string = preg_replace($pr, $rep, $string);
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$string = str_replace(
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array("\r", '"', '«', '»'),
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array('', 'ʺ', 'ʺ', 'ʺ'),
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$string);
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return $string;
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}
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static function getClear($string)
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{
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// Headers
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for ($index = 3; $index > 0; $index--) {
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$pr = '/(^#{' . $index . '} .{1,})/m';
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preg_match_all($pr, $string, $headers);
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if (isset($headers[0][0])) {
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foreach ($headers[0] as $header) {
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$hI = $index+1;
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$string = str_replace($header, '', $string);
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}
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}
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}
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// Bold & Italic
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$pr = '(\*{1,3}(.+?)\*{1,3})';
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$rep = '$1';
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$string = preg_replace($pr, $rep, $string);
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// Uderline
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$pr = '(\_{1}(.+?)\_{1})';
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$rep = '$1';
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$string = preg_replace($pr, $rep, $string);
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// Images
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$pr = '(\[img[\|]#(\d+)\])';
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$rep = ' ';
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$string = preg_replace($pr, $rep, $string);
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$pr = '((^|\s)-{2}($|\s))';
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$rep = '$1—$2';
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$string = preg_replace($pr, $rep, $string);
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// \n & \r
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$string = str_replace(array("\n","\r"), array(' ', ' '), $string);
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// URL
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$pr = '((https{0,1}:\/\/[\da-z\.-]+\.[a-z]{2,6})[\/\w\?=&#%+\.,-]*\/?)';
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$rep = '';
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$string = preg_replace($pr, $rep, $string);
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// Points
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$pr = '((\[#(\d+)[>\|](.*?)\])|(\[#(\d+)\]))';
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$rep = ' ';
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$string = preg_replace($pr, $rep, $string);
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// multi-space
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$pr = '(\s{2,})';
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$rep = ' ';
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$string = preg_replace($pr, $rep, $string);
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return trim($string);
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}
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}
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