Module:DemoTemplate
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![]() | This module is rated as beta, and is ready for widespread use. It is still new and should be used with some caution to ensure the results are as expected. |
Usage
[change source]Simply place "#invoke:DemoTemplate|" before a call to a template. For example, {{#invoke:DemoTemplate|Convert|10|km|nmi|abbr=off}} yields the following:
{{Convert|10|km|nmi|abbr=off}}
→ 10 kilometres (5.4 nautical miles)
This module handles both named and positional parameters as well as equals signs in both parameter names and values correctly, so this (for example) will work: {{#invoke:DemoTemplate|1x|1=Some parameter with an = sign in it}}
{{1x|1=Some parameter with an = sign in it}}
→ Some parameter with an = sign in it
Note, however, that pipes, curly braces, etc. are not currently handled correctly by this module, so this (for example) will not work correctly: {{#invoke:DemoTemplate|1x|foo{{!}}bar}}
{{1x|foo|bar}}
→ foo
require('strict')
local newBuffer = require('Module:OutputBuffer')
local mt = {}
function mt.__index(t, title)
return function(frame)
local getBuffer, print, printf = newBuffer()
printf('{{%s', title)
local ipairsArgs = {}
for k,v in ipairs(frame.args) do
if string.find(v, '=', 1, true) then
break
end
ipairsArgs[k] = true
printf('|%s', v)
end
for k,v in pairs(frame.args) do
if not ipairsArgs[k] then
printf('|%s=%s', string.gsub(k, '=', '{{=}}'), v)
end
end
print('}}')
local buffer = getBuffer()
-- rather than calling expandTemplate with the title and args we have, call preprocess, so that our code example will always match our output, even in the cases of pipes or other things we should have escaped but didn't
return string.format('<code>%s</code> → %s', mw.text.nowiki(buffer), frame:preprocess(buffer))
end
end
return setmetatable({}, mt)