Module:Demo: Difference between revisions
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Latest revision as of 03:03, 8 February 2024
Documentation for this module may be created at Module:Demo/doc
local p = {}
--creates a frame object that cannot access any of the parent's args
--unless a table containing a list keys of not to inherit is provided
function disinherit(frame, onlyTheseKeys)
local parent = frame:getParent() or frame
local orphan = parent:newChild{}
orphan.getParent = parent.getParent --returns nil
orphan.args = {}
if onlyTheseKeys then
local family = {parent, frame}
for f = 1, 2 do
for k, v in pairs(family[f] and family[f].args or {}) do
orphan.args[k] = orphan.args[k] or v
end
end
parent.args = mw.clone(orphan.args)
setmetatable(orphan.args, nil)
for _, k in ipairs(onlyTheseKeys) do
rawset(orphan.args, k, nil)
end
end
return orphan, parent
end
function getSeparator(args, default)
local br = tonumber(args.br) and ('<br>'):rep(args.br) or args.br
local sep = args.sep or br or default
return #sep > 0 and ' ' .. sep .. ' ' or sep
end
function p.get(frame, arg, passArgs)
local orphan, frame = disinherit(frame, passArgs and {arg or 1})
local code = frame.args[arg or 1] or ''
if code:match'UNIQ%-%-nowiki' then
code = mw.text.unstripNoWiki(code)
:gsub('<', '<')
:gsub('>', '>')
:gsub('"', '"')
-- Replace `}%-` with `}-` because of some server quirk leading to
-- =mw.text.unstripNoWiki(mw.getCurrentFrame():preprocess('<nowiki>}-</nowiki>'))
-- outputting `}-` instead of `}-`, while it's ok with `<nowiki>} -</nowiki>`
:gsub('}%-', '}-')
-- The same with `-{`
:gsub('%-{', '-{')
end
local kill_categories = frame.args.demo_kill_categories or frame.args.nocat
return {
source = code,
output = orphan:preprocess(code):gsub(kill_categories and '%[%[Category.-%]%]' or '', ''),
frame = frame
}
end
function p.main(frame, demoTable)
local show = demoTable or p.get(frame)
local args = show.frame.args
if show[args.result_arg] then
return show[args.result_arg]
end
local yesno = require('Module:Yesno')
args.reverse = yesno(args.reverse, false)
args.sep = getSeparator(args, '')
local source = frame:extensionTag{
name = 'syntaxhighlight',
args = {
lang = 'wikitext',
style = args.style
},
content = show.source
}
return args.reverse and
show.output .. args.sep .. source or
source .. args.sep .. show.output
end
-- Alternate function to return an inline result
function p.inline(frame, demoTable)
local show = demoTable or p.get(frame)
local args = show.frame.args
if show[args.result_arg] then
return show[args.result_arg]
end
local yesno = require('Module:Yesno')
args.reverse = yesno(args.reverse, false)
args.sep = getSeparator(args, args.reverse and '←' or '→')
local source = frame:extensionTag{
name = 'syntaxhighlight',
args = {
lang = 'wikitext',
inline = true,
style = args.style
},
content = show.source
}
return args.reverse and
show.output .. args.sep .. source or
source .. args.sep .. show.output
end
--passing of args into other module without preprocessing
function p.module(frame)
local orphan, frame = disinherit(frame, {
'demo_template',
'demo_module',
'demo_module_func',
'demo_main',
'demo_sep',
'demo_br',
'demo_result_arg',
'demo_kill_categories',
'nocat'
})
local template = frame.args.demo_template and 'Template:'..frame.args.demo_template
local demoFunc = frame.args.demo_module_func or 'main\n'
local demoModule = require('Module:' .. frame.args.demo_module)[demoFunc:match('^%s*(.-)%s*$')]
frame.args.br, frame.args.result_arg = frame.args.demo_sep or frame.args.demo_br, frame.args.demo_result_arg
local kill_categories = frame.args.demo_kill_categories or frame.args.nocat
if demoModule then
local named = {insert = function(self, ...) table.insert(self, ...) return self end}
local source = {insert = named.insert, '{{', frame.args.demo_template or frame.args.demo_module, '\n'}
if not template then
source:insert(2, '#invoke:'):insert(4, '|'):insert(5, demoFunc)
end
local insertNamed = #source + 1
for k, v in pairs(orphan.args) do
local nan, insert = type(k) ~= 'number', {v}
local target = nan and named or source
target:insert'|'
if nan then
target:insert(k):insert'=':insert'\n'
table.insert(insert, 1, #target)
end
target:insert(unpack(insert))
local nowiki = v:match('nowiki')
if nowiki or v:match('{{.-}}') then
orphan.args[k] = frame:preprocess(nowiki and mw.text.unstripNoWiki(v) or v)
end
end
source:insert'}}'
table.insert(source, insertNamed, table.concat(named))
return p.main(orphan, {
source = table.concat(source), "<>'|=~",
output = tostring(demoModule(orphan)):gsub(kill_categories and '%[%[Category.-%]%]' or '', ''),
frame = frame
})
else
return "ERROR: Invalid module function: "..demoFunc
end
end
return p