Convert PHP function to ASP.NET C# - Regular Expressions

I need the following PHP function to be converted to an ASP.NET C# method. This function comes from Wordpress.

/**

* Replaces double line-breaks with paragraph elements.

*

* A group of regex replaces used to identify text formatted with newlines and

* replace double line-breaks with HTML paragraph tags. The remaining

* line-breaks after conversion become <<br />> tags, unless $br is set to '0'

* or 'false'.

*

* @since 0.71

*

* @param string $pee The text which has to be formatted.

* @param int|bool $br Optional. If set, this will convert all remaining line-breaks after paragraphing. Default true.

* @return string Text which has been converted into correct paragraph tags.

*/

function wpautop($pee, $br = 1) {

if ( trim($pee) === '' )

return '';

$pee = $pee . "\n"; // just to make things a little easier, pad the end

$pee = preg_replace('|<br />\s*<br />|', "\n\n", $pee);

// Space things out a little

$allblocks = '(?:table|thead|tfoot|caption|col|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|map|area|blockquote|address|math|style|input|p|h[1-6]|hr)';

$pee = preg_replace('!(<' . $allblocks . '[^>]*>)!', "\n$1", $pee);

$pee = preg_replace('!(</' . $allblocks . '>)!', "$1\n\n", $pee);

$pee = str_replace(array("\r\n", "\r"), "\n", $pee); // cross-platform newlines

if ( strpos($pee, '<object') !== false ) {

$pee = preg_replace('|\s*<param([^>]*)>\s*|', "<param$1>", $pee); // no pee inside object/embed

$pee = preg_replace('|\s*</embed>\s*|', '</embed>', $pee);

}

$pee = preg_replace("/\n\n+/", "\n\n", $pee); // take care of duplicates

// make paragraphs, including one at the end

$pees = preg_split('/\n\s*\n/', $pee, -1, PREG_SPLIT_NO_EMPTY);

$pee = '';

foreach ( $pees as $tinkle )

$pee .= '<p>' . trim($tinkle, "\n") . "</p>\n";

$pee = preg_replace('|<p>\s*</p>|', '', $pee); // under certain strange conditions it could create a P of entirely whitespace

$pee = preg_replace('!<p>([^<]+)</(div|address|form)>!', "<p>$1</p></$2>", $pee);

$pee = preg_replace('!<p>\s*(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee); // don't pee all over a tag

$pee = preg_replace("|<p>(<li.+?)</p>|", "$1", $pee); // problem with nested lists

$pee = preg_replace('|<p><blockquote([^>]*)>|i', "<blockquote$1><p>", $pee);

$pee = str_replace('</blockquote></p>', '</p></blockquote>', $pee);

$pee = preg_replace('!<p>\s*(</?' . $allblocks . '[^>]*>)!', "$1", $pee);

$pee = preg_replace('!(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee);

if ($br) {

$pee = preg_replace_callback('/<(script|style).*?<\/\\1>/s', create_function('$matches', 'return str_replace("\n", "<WPPreserveNewline />", $matches[0]);'), $pee);

$pee = preg_replace('|(?<!<br />)\s*\n|', "<br />\n", $pee); // optionally make line breaks

$pee = str_replace('<WPPreserveNewline />', "\n", $pee);

}

$pee = preg_replace('!(</?' . $allblocks . '[^>]*>)\s*<br />!', "$1", $pee);

$pee = preg_replace('!<br />(\s*</?(?:p|li|div|dl|dd|dt|th|pre|td|ul|ol)[^>]*>)!', '$1', $pee);

if (strpos($pee, '<pre') !== false)

$pee = preg_replace_callback('!(<pre[^>]*>)(.*?)</pre>!is', 'clean_pre', $pee );

$pee = preg_replace( "|\n</p>$|", '</p>', $pee );

$pee = preg_replace('/<p>\s*?(' . get_shortcode_regex() . ')\s*<\/p>/s', '$1', $pee); // don't auto-p wrap shortcodes that stand alone

return $pee;

}

.NET Programación en C# PHP

Nº del proyecto: #626016

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