From Legacy Wiki
G-Code is used in many places like in fourms, and in game messages. 
here is a list of the codes and an example:
| Input | Output |
| Standard G-Code: | |
| [b]Bold Text[/b] | Bold Text |
| [u]Underlined Text[/u] | Underlined Text |
| [i]Italic Text[/i] | Italic Text |
| [s]Strikeout Text[/s] | |
| [sup]Superscript[/sup] | Superscript |
| [sub]Subscript[/sub] | Subscript |
| [list][*]List Item 1 [*]List Item 2 [/list] | List Item 1
List Item 2 |
| Only availiable in forums and messages: | |
| [url]http://www.server.org/[/url] | http://www.server.org/ |
| [url=http://www.server.org/]server[/url] | server |
| [email]nobody@email.org[/email] | nobody@email.org |
| [email=nobody@email.org]mail me[/email] | mail me |
| [img]IMAGEURL[/img] | (image will appear here) |
| Only availiable in gang library books: | |
| [darktext]Dark Text[/darktext] | Dark Text |
| [colortext]Color Text[/colortext] | Color Text |
| [tc]Chapter Text[/tc] | Chapter Text |
| [df]Dark Flame Text[/df] | Dark Flame Text |
| [bod]Blade of Dawn Text[/bod] | Blade Of Dawn Text |
| [oc]Outcasts Text[/oc] | Outcasts Text |
| [align=right]Right Align[/align] | Right Align |
| [align=center]Center Align[/align] | Center Align |
| [align=left]Left Align[/align] | Left Align |