require('strict')
local p = {} --p stands for package
local getArgs = require('Module:Arguments').getArgs
local yesno = require('Module:Yesno')
--[=[
Return a formatted list of links referring to the parents of the current page
Parameters:
* page: the page title to use, if not the current page name
* display: an override display title to use for the top level.
* no_links: if yes, do not link page titles
* existing_links: if yes, check whether pages exist before making them links
Example:
* page = A/B/C/D => [[A|A]], [[A/B|B]], [[A/B/C|C]]
* page = A/B/C, display=Foo => [[A|Foo]], [[A/B|B]]
]=]
function p._parent_links(args)
args = args or {}
local no_links = yesno(args.no_links or args['no links']) or false
local existing_links = yesno(args.existing_links or args['existing links']) or false
-- select override page name if given
local title
if args['page'] then
title = mw.title.new(args['page'])
else
title = mw.title.getCurrentTitle()
end
local title_text = title.prefixedText
-- the parts of the page title
local parts = mw.text.split(title_text, '/', true)
-- collected links for each parent
-- at the top level, substitute the work display name if needed
-- don't include namespace in link name
local links = {
args['display'] or title.rootText
}
if not no_links and (not existing_links or (existing_links and mw.title.new(parts[1]).exists)) then
links[1] = '[[' .. parts[1] .. '|' .. links[1] .. ']]'
end
-- count forwards from the second-highest level to the second-lowest
-- (the lowest level is the current page, not a parent)
for level = 2, #parts - 1, 1 do
local link_name = parts[level]
local link_target = table.concat(parts, '/', 1, level)
-- construct the link wikitext
local link
if no_links then
link = link_name
elseif existing_links then
if mw.title.new(link_target).exists then
link = '[[' .. link_target .. '|' .. link_name .. ']]'
else
link = link_name
end
else
link = '[[' .. link_target .. '|' .. link_name .. ']]'
end
table.insert(links, link)
end
return table.concat(links, ', ')
end
function p.parent_links(frame)
return p._parent_links(getArgs(frame))
end
return p
