Module:Su/doc

This is a documentation subpage for Module:Su.
It may contain usage information, categories and other content that is not part of the original module page.

This Lua module is used on approximately 13,000 pages and changes may be widely noticed. Test changes in the module's /sandbox or /testcases subpages, or in your own module sandbox. Consider discussing changes on the talk page before implementing them.

This module implements the {{su}} template. It is used to create two smaller lines of text on one actual line.

Usage from wikitext

This module cannot be used directly from wikitext. It can only be used through a template, usually the {{su}} template. Please see the template page for documentation.

Usage from Lua modules

To use this module from other Lua modules, first load the module.

local mSu = require('Module:Su')

You can then generate the su links by using the _main function.

mSu._main(sup, sub, options)

sup is the contents of the top line, and sub is the contents of the bottom line. options is a table that can contain the following fields:

align - this can be set to "r" or "right" for right-alignment, and "c" or "center" for center-alignment. Anything else will make the output left-aligned. Must be a string value.
fontSize - the font size of the text, e.g. "90%". If set to "f" or "fixed", the module will output a fixed-width font at 80%. Must be a string value.
lineHeight - the distance from top to bottom (including top character). Default is 1.2em. Must be a string value.
verticalAlign - The base alignment from the bottom. Default depends on presence of sub; -0.4em if present, 0.8em if not. Must be a string value.

All arguments are optional.

Examples

Code	Result
`mSu._main('top-line text', 'bottom-line text')`	^{top-line text} _{bottom-line text}
`mSu._main('top-line text', 'bottom-line text', {fontSize = '100%'})`	^{top-line text} _{bottom-line text}
`mSu._main('top-line text', 'bottom-line text', {fontSize = 'f'})`	^{top-line text} _{bottom-line text}
`mSu._main('top-line text', 'bottom-line text', {align = 'r'})`	^{top-line text} _{bottom-line text}
`mSu._main('top-line text', 'bottom-line text', {align = 'c'})`	^{top-line text} _{bottom-line text}
`mSu._main('12', '8', {align = 'c', lineHeight = '0.8em'})`	¹² ₈
`mSu._main('top-line text')`	^{top-line text}
`mSu._main(nil, 'bottom-line text')`	_{bottom-line text}