Module:Su
Documentation for this module may be created at Module:Su/doc
-- This module implements {{su}}.
local p = {}
function p.main(frame)
-- Use arguments from the parent frame only, and remove any blank arguments.
-- We don't need to trim whitespace from any arguments, as this module only
-- uses named arguments, and whitespace is trimmed from them automatically.
local origArgs = frame:getParent().args
local args = {}
for k, v in pairs(origArgs) do
if v ~= '' then
args[k] = v
end
end
-- Define the variables to pass to luaMain.
local sup = args.p
local sub = args.b
local options = {
align = args.a,
fontSize = args.w,
lineHeight = args.lh,
verticalAlign = args.va
}
return p._main(sup, sub, options)
end
function p._main(sup, sub, options)
options = options or {}
local span = mw.html.create('span')
-- Set the styles.
span:css{
['display'] = 'inline-block',
['margin-bottom'] = '-0.3em',
['vertical-align'] = options.verticalAlign or sub and '-0.4em' or '0.8em',
['line-height'] = options.lineHeight or '1.2em'
}
if options.fontSize == 'f' or options.fontSize == 'fixed' then
span:css{
['font-family'] = 'monospace',
['font-size'] = '80%'
}
else
span:css('font-size', options.fontSize or '80%')
end
if options.align == 'r' or options.align == 'right' then
span:css('text-align', 'right')
elseif options.align == 'c' or options.align == 'center' then
span:css('text-align', 'center')
else
span:css('text-align', 'left')
end
-- Add the wikitext.
span
:tag('sup')
:css('font-size', 'inherit')
:css('line-height', 'inherit')
:css('vertical-align', 'baseline')
:wikitext(sup)
:done()
:tag('br', {selfClosing = true}):done()
:tag('sub')
:css('font-size', 'inherit')
:css('line-height', 'inherit')
:css('vertical-align', 'baseline')
:wikitext(sub)
return tostring(span)
end
return p
