functions-formatting.php

是一个优秀的语义个人发布平台

				$tag = '</' . $tag . '>'; // Close Tag
				// Pop
				array_pop ($tagstack);
				$stacksize--;
			} else { // closing tag not at top, search for it
				for ($j=$stacksize-1;$j>=0;$j--) {
					if ($tagstack[$j] == $tag) {
					// add tag to tagqueue
						for ($k=$stacksize-1;$k>=$j;$k--){
							$tagqueue .= '</' . array_pop ($tagstack) . '>';
							$stacksize--;
						}
						break;
					}
				}
				$tag = '';
			}
		} else { // Begin Tag
			$tag = strtolower($regex[1]);

			// Tag Cleaning

			// Push if not img or br or hr
			if($tag != 'br' && $tag != 'img' && $tag != 'hr') {
				$stacksize = array_push ($tagstack, $tag);
			}

			// Attributes
			// $attributes = $regex[2];
			$attributes = $regex[2];
			if($attributes) {
				$attributes = ' '.$attributes;
			}
			$tag = '<'.$tag.$attributes.'>';
		}
		$newtext .= substr($text,0,$i) . $tag;
		$text = substr($text,$i+$l);
	}  

	// Clear Tag Queue
	$newtext = $newtext . $tagqueue;

	// Add Remaining text
	$newtext .= $text;

	// Empty Stack
	while($x = array_pop($tagstack)) {
		$newtext = $newtext . '</' . $x . '>'; // Add remaining tags to close      
	}

	// WP fix for the bug with HTML comments
	$newtext = str_replace("< !--","<!--",$newtext);
	$newtext = str_replace("<    !--","< !--",$newtext);

	return $newtext;
}


function format_to_edit($content) {
	$content = stripslashes($content);
	$content = apply_filters('format_to_edit', $content);
	$content = htmlspecialchars($content);
	return $content;
}

function format_to_post($content) {
	global $wpdb;
	$content = apply_filters('format_to_post', $content);
	return $content;
}

function zeroise($number,$threshold) { // function to add leading zeros when necessary
	$l=strlen($number);
	if ($l<$threshold)
		for ($i=0; $i<($threshold-$l); $i=$i+1) { $number='0'.$number;	}
	return $number;
	}


function backslashit($string) {
	$string = preg_replace('/([a-z])/i', '\\\\\1', $string);
	return $string;
}

function trailingslashit($string) {
    if ( '/' != substr($string, -1)) {
        $string .= '/';
    }
    return $string;
}

function addslashes_gpc($gpc) {
	if (!get_magic_quotes_gpc()) {
		$gpc = addslashes($gpc);
	}
	return $gpc;
}

function antispambot($emailaddy, $mailto=0) {
	$emailNOSPAMaddy = '';
	srand ((float) microtime() * 1000000);
	for ($i = 0; $i < strlen($emailaddy); $i = $i + 1) {
		$j = floor(rand(0, 1+$mailto));
		if ($j==0) {
			$emailNOSPAMaddy .= '&#'.ord(substr($emailaddy,$i,1)).';';
		} elseif ($j==1) {
			$emailNOSPAMaddy .= substr($emailaddy,$i,1);
		} elseif ($j==2) {
			$emailNOSPAMaddy .= '%'.zeroise(dechex(ord(substr($emailaddy, $i, 1))), 2);
		}
	}
	$emailNOSPAMaddy = str_replace('@','&#64;',$emailNOSPAMaddy);
	return $emailNOSPAMaddy;
}

function make_clickable($text) { // original function: phpBB, extended here for AIM & ICQ
    $ret = " " . $text;
    $ret = preg_replace("#([\n ])([a-z]+?)://([^, <>{}\n\r]+)#i", "\\1<a href=\"\\2://\\3\" target=\"_blank\">\\2://\\3</a>", $ret);
    $ret = preg_replace("#([\n ])aim:([^,< \n\r]+)#i", "\\1<a href=\"aim:goim?screenname=\\2\\3&message=Hello\">\\2\\3</a>", $ret);
    $ret = preg_replace("#([\n ])icq:([^,< \n\r]+)#i", "\\1<a href=\"http://wwp.icq.com/scripts/search.dll?to=\\2\\3\">\\2\\3</a>", $ret);
    $ret = preg_replace("#([\n ])www\.([a-z0-9\-]+)\.([a-z0-9\-.\~]+)((?:/[^,< \n\r]*)?)#i", "\\1<a href=\"http://www.\\2.\\3\\4\" target=\"_blank\">www.\\2.\\3\\4</a>", $ret);
    $ret = preg_replace("#([\n ])([a-z0-9\-_.]+?)@([^,< \n\r]+)#i", "\\1<a href=\"mailto:\\2@\\3\">\\2@\\3</a>", $ret);
    $ret = substr($ret, 1);
    return $ret;
}

function convert_smilies($text) {
	global $wp_smiliessearch, $wp_smiliesreplace;
    $output = '';
	if (get_settings('use_smilies')) {
		// HTML loop taken from texturize function, could possible be consolidated
		$textarr = preg_split("/(<.*>)/U", $text, -1, PREG_SPLIT_DELIM_CAPTURE); // capture the tags as well as in between
		$stop = count($textarr);// loop stuff
		for ($i = 0; $i < $stop; $i++) {
			$content = $textarr[$i];
			if ((strlen($content) > 0) && ('<' != $content{0})) { // If it's not a tag
				$content = str_replace($wp_smiliessearch, $wp_smiliesreplace, $content);
			}
			$output .= $content;
		}
	} else {
		// return default text.
		$output = $text;
	}
	return $output;
}


function is_email($user_email) {
	$chars = "/^([a-z0-9+_]|\\-|\\.)+@(([a-z0-9_]|\\-)+\\.)+[a-z]{2,6}\$/i";
	if(strstr($user_email, '@') && strstr($user_email, '.')) {
		if (preg_match($chars, $user_email)) {
			return true;
		} else {
			return false;
		}
	} else {
		return false;
	}
}


function strip_all_but_one_link($text, $mylink) {
	$match_link = '#(<a.+?href.+?'.'>)(.+?)(</a>)#';
	preg_match_all($match_link, $text, $matches);
	$count = count($matches[0]);
	for ($i=0; $i<$count; $i++) {
		if (!strstr($matches[0][$i], $mylink)) {
			$text = str_replace($matches[0][$i], $matches[2][$i], $text);
		}
	}
	return $text;
}


// used by wp-mail to handle charsets in email subjects
function wp_iso_descrambler($string) {
  /* this may only work with iso-8859-1, I'm afraid */
  if (!preg_match('#\=\?(.+)\?Q\?(.+)\?\=#i', $string, $matches)) {
    return $string;
  } else {
    $subject = str_replace('_', ' ', $matches[2]);
    $subject = preg_replace('#\=([0-9a-f]{2})#ei', "chr(hexdec(strtolower('$1')))", $subject);
    return $subject;
  }
}


// give it a date, it will give you the same date as GMT
function get_gmt_from_date($string) {
  // note: this only substracts $time_difference from the given date
  preg_match('#([0-9]{1,4})-([0-9]{1,2})-([0-9]{1,2}) ([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2})#', $string, $matches);
  $string_time = gmmktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]);
  $string_gmt = gmdate('Y-m-d H:i:s', $string_time - get_settings('gmt_offset') * 3600);
  return $string_gmt;
}

// give it a GMT date, it will give you the same date with $time_difference added
function get_date_from_gmt($string) {
  // note: this only adds $time_difference to the given date
  preg_match('#([0-9]{1,4})-([0-9]{1,2})-([0-9]{1,2}) ([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2})#', $string, $matches);
  $string_time = gmmktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]);
  $string_localtime = gmdate('Y-m-d H:i:s', $string_time + get_settings('gmt_offset')*3600);
  return $string_localtime;
}

?>