Help me convert BBCode to HTML and back again
Posted: Wed Dec 03, 2008 9:28 pm
I found this code on the web (forgot the site) with a function to convert BBCode to HTML. Guess what, it worked but there are two small problems. First there is no limit for the width and height for an image. There are also no limits for how big they can make the font. So can anyone help me create these limits?
Then after that is done, I'll need to convert the HTML back into BBCode again for when they need to edit their page.
Below is the function.
Then after that is done, I'll need to convert the HTML back into BBCode again for when they need to edit their page.
Below is the function.
Code: Select all
function bbcode2html($message) {
$preg = array(
'/(?<!\\\\)\[color(?::\w+)?=(.*?)\](.*?)\[\/color(?::\w+)?\]/si' => "<span style=\"color:\\1\">\\2</span>",
'/(?<!\\\\)\[size(?::\w+)?=(.*?)\](.*?)\[\/size(?::\w+)?\]/si' => "<span style=\"font-size:\\1\">\\2</span>",
'/(?<!\\\\)\[font(?::\w+)?=(.*?)\](.*?)\[\/font(?::\w+)?\]/si' => "<span style=\"font-family:\\1\">\\2</span>",
'/(?<!\\\\)\[align(?::\w+)?=(.*?)\](.*?)\[\/align(?::\w+)?\]/si' => "<div style=\"text-align:\\1\">\\2</div>",
'/(?<!\\\\)\[b(?::\w+)?\](.*?)\[\/b(?::\w+)?\]/si' => "<span style=\"font-weight:bold\">\\1</span>",
'/(?<!\\\\)\[i(?::\w+)?\](.*?)\[\/i(?::\w+)?\]/si' => "<span style=\"font-style:italic\">\\1</span>",
'/(?<!\\\\)\[u(?::\w+)?\](.*?)\[\/u(?::\w+)?\]/si' => "<span style=\"text-decoration:underline\">\\1</span>",
'/(?<!\\\\)\[center(?::\w+)?\](.*?)\[\/center(?::\w+)?\]/si' => "<div style=\"text-align:center\">\\1</div>",
// [email]
'/(?<!\\\\)\[email(?::\w+)?\](.*?)\[\/email(?::\w+)?\]/si' => "<a href=\"mailto:\\1\" class=\"bb-email\">\\1</a>",
'/(?<!\\\\)\[email(?::\w+)?=(.*?)\](.*?)\[\/email(?::\w+)?\]/si' => "<a href=\"mailto:\\1\" class=\"bb-email\">\\2</a>",
// [url]
'/(?<!\\\\)\[url(?::\w+)?\]www\.(.*?)\[\/url(?::\w+)?\]/si' => "<a href=\"http://www.\\1\" target=\"_blank\" class=\"bb-url\">\\1</a>",
'/(?<!\\\\)\[url(?::\w+)?\](.*?)\[\/url(?::\w+)?\]/si' => "<a href=\"\\1\" target=\"_blank\" class=\"bb-url\">\\1</a>",
'/(?<!\\\\)\[url(?::\w+)?=(.*?)?\](.*?)\[\/url(?::\w+)?\]/si' => "<a href=\"\\1\" target=\"_blank\" class=\"bb-url\">\\2</a>",
// [img]
'/(?<!\\\\)\[img(?::\w+)?\](.*?)\[\/img(?::\w+)?\]/si' => "<img src=\"\\1\" alt=\"\\1\" class=\"bb-image\" />",
'/(?<!\\\\)\[img(?::\w+)?=(.*?)x(.*?)\](.*?)\[\/img(?::\w+)?\]/si' => "<img width=\"\\1\" height=\"\\2\" src=\"\\3\" alt=\"\\3\" class=\"bb-image\" />",
// [list]
'/(?<!\\\\)(?:\s*<br\s*\/?>\s*)?\[\*(?::\w+)?\](.*?)(?=(?:\s*<br\s*\/?>\s*)?\[\*|(?:\s*<br\s*\/?>\s*)?\[\/?list)/si' => "\n<li class=\"bb-listitem\">\\1</li>",
'/(?<!\\\\)(?:\s*<br\s*\/?>\s*)?\[\/list(:(?!u|o)\w+)?\](?:<br\s*\/?>)?/si' => "\n</ul>",
'/(?<!\\\\)(?:\s*<br\s*\/?>\s*)?\[\/list:u(:\w+)?\](?:<br\s*\/?>)?/si' => "\n</ul>",
'/(?<!\\\\)(?:\s*<br\s*\/?>\s*)?\[\/list:o(:\w+)?\](?:<br\s*\/?>)?/si' => "\n</ol>",
'/(?<!\\\\)(?:\s*<br\s*\/?>\s*)?\[list(:(?!u|o)\w+)?\]\s*(?:<br\s*\/?>)?/si' => "\n<ul class=\"bb-list-unordered\">",
'/(?<!\\\\)(?:\s*<br\s*\/?>\s*)?\[list:u(:\w+)?\]\s*(?:<br\s*\/?>)?/si' => "\n<ul class=\"bb-list-unordered\">",
'/(?<!\\\\)(?:\s*<br\s*\/?>\s*)?\[list:o(:\w+)?\]\s*(?:<br\s*\/?>)?/si' => "\n<ol class=\"bb-list-ordered\">",
'/(?<!\\\\)(?:\s*<br\s*\/?>\s*)?\[list(?::o)?(:\w+)?=1\]\s*(?:<br\s*\/?>)?/si' => "\n<ol class=\"bb-list-ordered,bb-list-ordered-d\">",
'/(?<!\\\\)(?:\s*<br\s*\/?>\s*)?\[list(?::o)?(:\w+)?=i\]\s*(?:<br\s*\/?>)?/s' => "\n<ol class=\"bb-list-ordered,bb-list-ordered-lr\">",
'/(?<!\\\\)(?:\s*<br\s*\/?>\s*)?\[list(?::o)?(:\w+)?=I\]\s*(?:<br\s*\/?>)?/s' => "\n<ol class=\"bb-list-ordered,bb-list-ordered-ur\">",
'/(?<!\\\\)(?:\s*<br\s*\/?>\s*)?\[list(?::o)?(:\w+)?=a\]\s*(?:<br\s*\/?>)?/s' => "\n<ol class=\"bb-list-ordered,bb-list-ordered-la\">",
'/(?<!\\\\)(?:\s*<br\s*\/?>\s*)?\[list(?::o)?(:\w+)?=A\]\s*(?:<br\s*\/?>)?/s' => "\n<ol class=\"bb-list-ordered,bb-list-ordered-ua\">",
//line breaks
'/\n/' => "<br>",
// escaped tags like \[b], \[color], \[url], ...
'/\\\\(\[\/?\w+(?::\w+)*\])/' => "\\1"
);
$message = preg_replace(array_keys($preg), array_values($preg), $message);
return $message;
}