Out of the box BBCODE previewer

http://pastebin.ca/667158

Uses the same parser as Shiichan, though 4chan's copy of the parser has been considerably customised.

Enjoy your 1000+ lines.

>>38
My what? The C# code for making that stupid ramped spoiler? Not the one I wrote, but I bet someone has made one before, as it isn't exactly hard. Even if they did, it's can't be so different that the OP's 5 year old code would parse it correctly but parse mine incorrectly.