"Bold Text",
"Example" => "[b]Bold[/b]"
)),
new ArrayData(array(
"Title" => "Italic Text",
"Example" => "[i]Italics[/i]"
)),
new ArrayData(array(
"Title" => "Underlined Text",
"Example" => "[u]Underlined[/u]"
)),
new ArrayData(array(
"Title" => "Struck-out Text",
"Example" => "[s]Struck-out[/s]"
)),
new ArrayData(array(
"Title" => "Website link",
"Description" => "Link to another website or URL",
"Example" => "[url]http://www.website.com/[/url]"
)),
new ArrayData(array(
"Title" => "Website link",
"Description" => "Link to another website or URL",
"Example" => "[url=http://www.website.com/]Some website[/url]"
)),
new ArrayData(array(
"Title" => "Email link",
"Description" => "Create link to an email address",
"Example" => "[email]you@yoursite.com[/email]"
)),
new ArrayData(array(
"Title" => "Email link",
"Description" => "Create link to an email address",
"Example" => "[email=you@yoursite.com]email me[/email]"
)),
new ArrayData(array(
"Title" => "Image",
"Description" => "Show an image in your post",
"Example" => "[img]http://www.website.com/image.jpg[/img]"
)),
new ArrayData(array(
"Title" => "Code Block",
"Description" => "Unformatted code block",
"Example" => "[code]Code block[/code]"
)),
new ArrayData(array(
"Title" => "HTML Code Block",
"Description" => "HTML-formatted code block",
"Example" => "[html]HTML code block[/html]"
)),
new ArrayData(array(
"Title" => "HTML Code Block",
"Description" => "HTML-formatted code block",
"Example" => "[code html]HTML code block[/code]"
)),
new ArrayData(array(
"Title" => "PHP Code Block",
"Description" => "PHP-formatted code block",
"Example" => "[php]PHP code block[/php]"
)),
new ArrayData(array(
"Title" => "PHP Code Block",
"Description" => "PHP-formatted code block",
"Example" => "[code php]PHP code block[/code]"
))
);
}
function useable_tagsHTML(){
$useabletags = "";
foreach($this->usable_tags()->toArray() as $tag){
$useabletags = $useabletags."- ".$tag->Example."
";
}
return $useabletags."
";
}
/**
* Meat of the class - finds tags to parse and offloads the parsing to member methods.
*
* parse() will look at various [square-bracketed] tags and replace them.
* Complicated replacements are handled via private member methods.
* Simple stuff is done inline inside the preg_replace to keep overhead low.
*/
function parse() {
$this->content = str_replace(array('&', '<', '>'), array('&', '<', '>'), $this->content);
// Parse [code X] and base [code] tags
$this->content = preg_replace("#\[code (.+?)\](.+?)\[/code\]#ies", "\$this->parseCode('\\2', '\\1')", $this->content);
$this->content = preg_replace("#\[code\](.+?)\[/code\]#ies", "\$this->parseCode('\\1')", $this->content);
// Parse [html] and [php] tags (Shorthand [code html] and [code php] respectively)
$this->content = preg_replace("#\[html\](.+?)\[/html\]#ies", "\$this->parseCode('\\1', 'html')", $this->content);
$this->content = preg_replace("#\[php\](.+?)\[/php\]#ies", "\$this->parseCode('\\1', 'php')", $this->content);
// Simple HTML tags (bold, italic, underline, strike-through) - No need to call member methods for these
$this->content = preg_replace("#\[b\](.+?)\[/b\]#is", "\\1", $this->content);
$this->content = preg_replace("#\[i\](.+?)\[/i\]#is", "\\1", $this->content);
$this->content = preg_replace("#\[u\](.+?)\[/u\]#is", "\\1", $this->content);
$this->content = preg_replace("#\[s\](.+?)\[/s\]#is", "\\1", $this->content);
// Email tags ([email]name@domain.tld[/email] and [email=name@domain.tld]email me![/email])
$this->content = preg_replace("#\[email\](\S+?)\[/email\]#i", "\\1", $this->content);
$this->content = preg_replace("#\[email\s*=\s*([\.\w\-]+\@[\.\w\-]+\.[\w\-]+)\s*\](.*?)\[\/email\]#i", "\\2", $this->content);
// URL tags ([url]someurl.tld[/url] and [url=someurl.tld]visit someurl.tld![/url])
$this->content = preg_replace("#\[url\](\S+?)\[/url\]#ie", "\$this->parseURL('\\1')", $this->content);
$this->content = preg_replace("#\[url\s*=\s*(\S+?)\s*\](.*?)\[\/url\]#ie", "\$this->parseURL('\\1', '\\2')", $this->content);
$this->content = preg_replace("#\[url\s*=\s*\"\;\s*(\S+?)\s*\"\;\s*\](.*?)\[\/url\]#ie", "\$this->parseURL('\\1', '\\2')", $this->content);
// Img tags ([img]link/to/some/image.ext[/img])
$this->content = preg_replace("#\[img\](.+?)\[/img\]#ie", "\$this->parseImg('\\1')", $this->content);
$this->content = str_replace("\n", "
", $this->content);
return $this->content;
}
/**
* Parses a [code] tag
*/
private function parseCode($text, $type="text") {
// Wrap $text if required
$text = wordwrap($text, 80);
// Add opening tags if required for PHP
// Assumes that if there is no opening tag, that there is also no closing tag
if($type == 'php') {
if(strpos($text, '<?') === false) {
$text = "<?php\n$text\n?>";
}
}
switch($type) {
case "php":
case "html":
return "".strtoupper($type).":
".highlight_string(Convert::js2raw(Convert::xml2raw($text)), true)."
";
break;
case "text":
default:
return "".strtoupper($type).":
".wordwrap($text)."
";
break;
}
}
/**
* Parses a [url] tag
*/
private function parseURL($link, $text = "") {
// If text isn't defined, make it the same as the link (for the [url][/url] tag)
if(!$text) $text = $link;
// Remove ability to influence Javascript
$link = preg_replace("/javascript:/i", "java script", $link);
// Ensure the URL starts with protocol://
// If we don't, assume http://
if (!preg_match("#^(\S+?)://#", $link)) {
$link = "http://$link";
}
// Rewrite *really* long URLs to beginning...end, but only where the URL is the same as the title
// This will make the title 43 characters long if the link is >100 characters
if(strlen($link) > 100 && $link == $text) {
$text = substr($link, 0, 20)."...".substr($link, -20);
}
$text = wordwrap($text, 78, " ", true);
return "$text";
}
/**
* Parses a [img] tag
*
* TODO Set a maximum-images-per-post flag and check it
*/
private function parseImg($url) {
// If we don't let them put this image tag in, just show the unchanged [img] tag so it's sorta obvious that it didn't work
$noChange = "[img]".$url."[/img]";
// Disallow 'dynamic' images (dynamic being images with '?' in the url :P)
// TODO Make this more robust, possibly allow it to be turned on/off via the CMS
if(preg_match("/[?&;]/", $url) || preg_match("/javascript/i", $url)) return $noChange;
// Replace spaces with %20 and return the image tag
return "![\"\"](\"".str_replace(")
";
}
}
?>