BBCode

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BBCode or Bulletin Board Code is a lightweight markup language used to format posts in many message boards. The available tags are usually indicated by square brackets ([ ]) surrounding a keyword, and they are parsed by the message board system before being translated into a markup language that web browsers understand--usually HTML or XHTML.

BBCode was introduced in 1998 by the messageboard software Ultimate Bulletin Board (UBB) implemented in Perl. In 2000 BBCode was used in phpBB--an internet forum system written in PHP and also XMB forum. vBulletin also uses BBCode.

Video BBCode

Tags

Maps BBCode

Implementation

BBCode is typically implemented by applying a series of regular expression string-replace operations upon the input. Because regular expressions are limited in analyzing the structure of text input, this has the artifact that any non-hierarchical BBCode input will be transformed into invalid non-hierarchical HTML without error.

Applying traditional parsing techniques is made difficult by ambiguities in the markup, such as in [quote=[b]text[/b][/quote], where the input can either be interpreted as "text" quoted from someone called "[b", or the bolded text "text" surrounded by "[quote=" and "[/quote]", i.e. "[quote=text[/quote]".

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References

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External links

• Any2Bb.com--Rich-text (and HTML) to BBCode online converter
• BBCode users guide

Source of article : Wikipedia