### 5.5 Custom command completion

Latex-Suite also recognizes certain commonly used LaTeX commands for the `<F9>` key. At the moment, the `\bibliographystyle`, `\addtocontents` and the `\addcontentsline` commands are recognized, although more will be added in the future. When you press the `<F9>` after such a command, Latex-Suite will prompt you with a list of arguments which make sense for the command.

This functionality is available for commands for which a global variable of the form `g:Tex_completion_{<command>}` is defined where `<command>` is the command name. This variable is a comma separated list of values which this command takes. For example, the argument to the `\bibliographystyle` command is commonly one of `abbr,alpha,plain,unsrt`. Therefore, Latex-Suite defines

`let g:Tex_completion_bibliographystyle = 'abbr,alpha,plain,unsrt'`

You can define your own completion variables in a similar manner for commands which you might use.