Help:Functions

From QED

Jump to: navigation, search
Help
Related topics

MediaWiki's template mechanism is used to provide a variety of predefined functions and also allows anyone with editing privileges in the Template: namespace to define additional functions.

Contents

Colon Functions

A colon function, also called a parser function, computes a value based on the specified paramters. There are many predefined colon functions, such as subst: for inline substitution of a template.

One particularly useful colon function is fullurl:, e.g.: 

{{fullurl:Special:Prefixindex|namespace=12&from=}}

produces: http://qed.princeton.edu/index.php?title=Special:Prefixindex&namespace=12&from=

For further details, see Help:Parser function.

Home-grown Colon Functions

These are the locally defined colon functions:

  • {{imageURL:filename}} generates the full URL for the specified image specified as a filename

For example, [{{imageURL:ImageOf.png}}] produces: [1]

Note: {{filepath:filename}} has a similar use, but produces nothing if the specified filename has not been uploaded.

Example: [{{filepath:ImageOf.png}}] produces: [2]

Arithmetic and Logical Calculations

Various colon functions are provided for evaluating arithmetic and logical expressions:

See Help:Calculation

See also

External links

Retrieved from "http://qed.princeton.edu/main/Help:Functions"
Personal tools