-- This module de-links most wikitext.
p = {}
local function delinkReversePipeTrick(s)
if mw.ustring.match(s, "^%[%[|.*[|\n]") or s == "[[|]]" then -- Check for newlines or multiple pipes.
return s
else
return mw.ustring.match(s, "%[%[|(.*)%]%]")
end
end
local function delinkPipeTrick(s)
-- s the tile area, without bracket nor pipe
-- We need to deal with colons, brackets, and commas, per [[Help:Pipe trick]].
-- First, remove the text before the first colon, if any.
s = mw.ustring.gsub(s, "^(.-:)", "")
-- Next up, brackets and commas.
if mw.ustring.match(s, "%(.-%)$") then -- Brackets trump commas.
s = mw.ustring.match(s, "(.-) ?%(.-%)$")
elseif mw.ustring.match(s, ",") then -- If there are no brackets, display only the text before the first comma.
s = mw.ustring.match(s, "(.-),.*$")
end
return s
end
local function delinkWikilink(s)
-- s should be a string starting by "[[" and ending by "]]". It should not contain other "]]"
-- Deal with nested links
local nested
nested = "[[" .. mw.ustring.gsub( mw.ustring.sub(s, 3), "%[%[.-%]%]", delinkWikilink)
if nested ~= s then
return nested
end
-- Deal with the reverse pipe trick.
if mw.ustring.match(s, "^%[%[|") then
return delinkReversePipeTrick(s)
end
local decoded = mw.uri.decode(s, "PATH") -- decode percent-encoded entities. Leave underscores and plus signs.
decoded = mw.text.decode(decoded, true) -- decode HTML entities.
-- Check for bad titles. To do this we need to find the
-- title area of the link, i.e. the part before any pipes.
local titlearea, display = mw.ustring.match(decoded, "^%[%[([^|%]]*)|?(.*)%]%]")
-- Check for bad characters.
if mw.ustring.match(titlearea, "[%[%]<>{}%%%c\n]") then
return s
end
-- Check for categories, interwikis, and files.
local colonprefix = mw.ustring.match(titlearea, "^(.-):") or "" -- Get the text before the first colon.
local ns = mw.site.namespaces[colonprefix] -- see if this is a known namespace
if mw.language.isKnownLanguageTag(colonprefix)
or ( ns and ( ns.canonicalName == "File" or ns.canonicalName == "Category" ) ) then
return ""
end
-- Remove the colon if the link is using the [[Help:Colon trick]].
if mw.ustring.sub(titlearea, 1, 1) == ":" then
titlearea = mw.ustring.sub(titlearea, 2)
end
-- Deal with links using the [[Help:Pipe trick]].
if display == "" then
return delinkPipeTrick(titlearea )
end
-- Find the display area of the wikilink
if not display then -- Find if we're dealing with a piped link.
-- Remove new lines from the display of multiline piped links,
-- where the pipe is before the first new line.
titlearea = mw.ustring.gsub(titlearea, "\n", "")
end
return display or titlearea
end
local function delinkURL(s)
-- Assume we have already delinked internal wikilinks, and that
-- we have been passed some text between two square brackets [foo].
-- If the text contains a line break it is not formatted as a URL, regardless of other content.
if mw.ustring.match(s, "\n") then
return s
end
-- Check if the text has a valid URL prefix and at least one valid URL character.
local valid_url_prefixes = {"//", "http://", "https://", "ftp://", "gopher://", "mailto:", "news:", "irc://"}
local url_prefix
for i,v in ipairs(valid_url_prefixes) do
if mw.ustring.match(s, '^%[' .. v ..'[^"%s].*%]' ) then
url_prefix = v
break
end
end
-- Get display text
if not url_prefix then
-- Deal with nested links or send back original string.
return "[" .. mw.ustring.gsub( mw.ustring.sub(s, 2), "%[.-%]", delinkURL )
end
s = mw.ustring.match(s, "^%[" .. url_prefix .. "(.*)%]") -- Grab all of the text after the URL prefix and before the final square bracket.
s = mw.ustring.match(s, '^.-(["<> [].*)') or "" -- Grab all of the text after the first URL separator character ("<> ).
s = mw.ustring.match(s, "^%s*(%S.*)$") or "" -- If the separating character was a space, trim it off.
local s_decoded = mw.text.decode(s, true)
if mw.ustring.match(s_decoded, "%c") then
return s
else
return s_decoded
end
end
local function _delink(args)
local text = args[1] or ""
if args.refs == "yes" then
-- Remove any [[Help:Strip markers]] representing ref tags. In most situations
-- this is not a good idea - only use it if you know what you are doing!
text = mw.ustring.gsub(text, "UNIQ%w*%-ref%-%d*%-QINU", "")
end
if not (args.comments == "no") then
text = mw.ustring.gsub(text, "<!%-%-.-%-%->", "") -- Remove html comments.
end
if not (args.wikilinks == "no") then
text = mw.ustring.gsub(text, "%[%[.-%]%]", delinkWikilink) -- De-link wikilinks.
end
if not (args.urls == "no") then
text = mw.ustring.gsub(text, "%[.-%]", delinkURL) -- De-link URLs.
end
if not (args.whitespace == "no") then
-- Replace single new lines with a single space, but leave double new lines
-- and new lines only containing spaces or tabs before a second new line.
text = mw.ustring.gsub(text, "([^\n \t][ \t]*)\n([ \t]*[^\n \t])", "%1 %2")
text = mw.ustring.gsub(text, "[ \t]+", " ") -- Remove extra tabs and spaces.
end
return text
end
function p.delink(frame)
local args
if frame == mw.getCurrentFrame() then
-- We're being called via #invoke. If the invoking template passed any args, use
-- them. Otherwise, use the args that were passed into the template.
args = frame:getParent().args
for k, v in pairs(frame.args) do
args = frame.args
break
end
else
-- We're being called from another module or from the debug console, so assume
-- the args are passed in directly.
args = frame
end
return _delink(args)
end
return p
