mw19>The Earwig |
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| − | -- This module de-links most wikitext.
| + | {{<includeonly>safesubst:</includeonly>#invoke:delink|delink}}<noinclude> |
| − | | + | {{documentation}} |
| − | require('Module:No globals')
| + | <!-- Categories go on the /doc subpage, and interwikis go on Wikidata. --> |
| − | | + | </noinclude> |
| − | local p = {}
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| − | | |
| − | local getArgs
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| − | | |
| − | local function delinkReversePipeTrick(s)
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| − | if s:match("^%[%[|.*[|\n]") then -- Check for newlines or multiple pipes.
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| − | return s
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| − | else
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| − | return s:match("%[%[|(.*)%]%]")
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| − | end
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| − | end
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| − | | |
| − | local function delinkPipeTrick(s)
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| − | local linkarea, display = "", ""
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| − | -- We need to deal with colons, brackets, and commas, per [[Help:Pipe trick]].
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| − |
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| − | -- First, remove the text before the first colon, if any.
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| − | if s:match(":") then
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| − | s = s:match("%[%[.-:(.*)|%]%]")
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| − | -- If there are no colons, grab all of the text apart from the square brackets and the pipe.
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| − | else
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| − | s = s:match("%[%[(.*)|%]%]")
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| − | end
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| − |
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| − | -- Next up, brackets and commas.
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| − | if s:match("%(.-%)$") then -- Brackets trump commas.
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| − | s = s:match("(.-) ?%(.-%)$")
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| − | elseif s:match(",") then -- If there are no brackets, display only the text before the first comma.
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| − | s = s:match("(.-),.*$")
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| − | end
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| − | return s
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| − | end
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| − | | |
| − | local function delinkWikilink(s)
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| − | local result = s
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| − | -- Deal with the reverse pipe trick.
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| − | if result:match("%[%[|") then
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| − | return delinkReversePipeTrick(result)
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| − | end
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| − |
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| − | result = mw.uri.decode(result, "PATH") -- decode percent-encoded entities. Leave underscores and plus signs.
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| − | result = mw.text.decode(result, true) -- decode HTML entities.
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| − |
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| − | -- Check for bad titles. To do this we need to find the
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| − | -- title area of the link, i.e. the part before any pipes.
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| − | local titlearea
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| − | if result:match("|") then -- Find if we're dealing with a piped link.
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| − | titlearea = result:match("^%[%[(.-)|.*%]%]")
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| − | else
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| − | titlearea = result:match("^%[%[(.-)%]%]")
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| − | end
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| − | -- Check for bad characters.
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| − | if mw.ustring.match(titlearea, "[%[%]<>{}%%%c\n]") then
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| − | return s
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| − | end
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| − |
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| − | -- Check for categories, interwikis, and files.
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| − | local colonprefix = result:match("%[%[(.-):.*%]%]") or "" -- Get the text before the first colon.
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| − | local ns = mw.site.namespaces[colonprefix] -- see if this is a known namespace
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| − | if mw.language.isKnownLanguageTag(colonprefix)
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| − | or ( ns and ( ns.canonicalName == "File" or ns.canonicalName == "Category" ) ) then
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| − | return ""
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| − | end
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| − |
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| − | -- Remove the colon if the link is using the [[Help:Colon trick]].
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| − | if result:match("%[%[:") then
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| − | result = "[[" .. result:match("%[%[:(.*%]%])")
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| − | end
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| − |
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| − | -- Deal with links using the [[Help:Pipe trick]].
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| − | if mw.ustring.match(result, "^%[%[[^|]*|%]%]") then
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| − | return delinkPipeTrick(result)
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| − | end
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| − |
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| − | -- Find the display area of the wikilink
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| − | if result:match("|") then -- Find if we're dealing with a piped link.
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| − | result = result:match("^%[%[.-|(.+)%]%]")
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| − | -- Remove new lines from the display of multiline piped links,
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| − | -- where the pipe is before the first new line.
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| − | result = result:gsub("\n", "")
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| − | else
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| − | result = result:match("^%[%[(.-)%]%]")
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| − | end
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| − | | |
| − | return result
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| − | end
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| − | | |
| − | local function delinkURL(s)
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| − | -- Assume we have already delinked internal wikilinks, and that
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| − | -- we have been passed some text between two square brackets [foo].
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| − |
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| − | -- If the text contains a line break it is not formatted as a URL, regardless of other content.
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| − | if s:match("\n") then
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| − | return s
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| − | end
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| − |
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| − | -- Check if the text has a valid URL prefix and at least one valid URL character.
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| − | local valid_url_prefixes = {"//", "http://", "https://", "ftp://", "gopher://", "mailto:", "news:", "irc://"}
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| − | local url_prefix
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| − | for i,v in ipairs(valid_url_prefixes) do
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| − | if mw.ustring.match(s, '^%[' .. v ..'[^"%s].*%]' ) then
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| − | url_prefix = v
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| − | break
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| − | end
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| − | end
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| − |
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| − | -- Get display text
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| − | if not url_prefix then
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| − | return s
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| − | end
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| − | s = s:match("^%[" .. url_prefix .. "(.*)%]") -- Grab all of the text after the URL prefix and before the final square bracket.
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| − | s = s:match('^.-(["<> ].*)') or "" -- Grab all of the text after the first URL separator character ("<> ).
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| − | s = mw.ustring.match(s, "^%s*(%S.*)$") or "" -- If the separating character was a space, trim it off.
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| − |
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| − | local s_decoded = mw.text.decode(s, true)
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| − | if mw.ustring.match(s_decoded, "%c") then
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| − | return s
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| − | else
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| − | return s_decoded
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| − | end
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| − | end
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| − | | |
| − | local function delinkLinkClass(s, pattern, delinkFunction)
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| − | if not type(s) == "string" then
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| − | error("Attempt to de-link non-string input.", 2)
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| − | end
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| − | if not ( type(pattern) == "string" and mw.ustring.sub(pattern, 1, 1) == "^" ) then
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| − | error('Invalid pattern detected. Patterns must begin with "^".', 2)
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| − | end
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| − | -- Iterate over the text string, and replace any matched text. using the
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| − | -- delink function. We need to iterate character by character rather
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| − | -- than just use gsub, otherwise nested links aren't detected properly.
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| − | local result = ""
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| − | while s ~= '' do
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| − | -- Replace text using one iteration of gsub.
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| − | s = mw.ustring.gsub(s, pattern, delinkFunction, 1)
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| − | -- Append the left-most character to the result string.
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| − | result = result .. mw.ustring.sub(s, 1, 1)
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| − | s = mw.ustring.sub(s, 2, -1)
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| − | end
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| − | return result
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| − | end
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| − | | |
| − | function p._delink(args)
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| − | local text = args[1] or ""
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| − | if args.refs == "yes" then
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| − | -- Remove any [[Help:Strip markers]] representing ref tags. In most situations
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| − | -- this is not a good idea - only use it if you know what you are doing!
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| − | text = mw.ustring.gsub(text, "UNIQ%w*%-ref%-%d*%-QINU", "")
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| − | end
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| − | if not (args.comments == "no") then
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| − | text = text:gsub("<!%-%-.-%-%->", "") -- Remove html comments.
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| − | end
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| − | if not (args.wikilinks == "no") then
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| − | text = delinkLinkClass(text, "^%[%[.-%]%]", delinkWikilink) -- De-link wikilinks.
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| − | end
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| − | if not (args.urls == "no") then
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| − | text = delinkLinkClass(text, "^%[.-%]", delinkURL) -- De-link URLs.
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| − | end
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| − | if not (args.whitespace == "no") then
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| − | -- Replace single new lines with a single space, but leave double new lines
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| − | -- and new lines only containing spaces or tabs before a second new line.
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| − | text = mw.ustring.gsub(text, "([^\n \t][ \t]*)\n([ \t]*[^\n \t])", "%1 %2")
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| − | text = text:gsub("[ \t]+", " ") -- Remove extra tabs and spaces.
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| − | end
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| − | return text
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| − | end
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| − | | |
| − | function p.delink(frame)
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| − | if not getArgs then
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| − | getArgs = require('Module:Arguments').getArgs
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| − | end
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| − | return p._delink(getArgs(frame, {wrappers = 'Template:Delink'}))
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| − | end
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| − | | |
| − | return p
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