-- This module de-links most wikitext.
p = {};
local function internalLink(s)
return (mw.ustring.gsub( s, "^([^|]*)(|?)(.*)$", function(l, p, t)
-- check for malformed links and text
if mw.ustring.match( l, "[<>{}%c\n]" ) or mw.ustring.match( t, "\n" ) then
return s;
end
-- remove whitespace from begining and end of link and text
l = mw.text.trim(l);
t = mw.text.trim(t);
local file = false;
if l == "" then
return s;
elseif mw.ustring.match( l, "^:" ) then
l = mw.ustring.gsub( l, "^:+", "" );
elseif mw.ustring.match( l, "^[Cc][Aa][Tt][Ee][Gg][Oo][Rr][Yy]:" ) then
return "";
elseif mw.ustring.match( l, "^[Ff][Ii][Ll][Ee]:" ) then
file = true;
elseif mw.ustring.match( l, "^[Ii][Mm][Aa][Gg][Ee]:" ) then
file = true;
end
if file == true then
return "";
elseif p == "|" and t ~= "" then
return t;
else
l = mw.ustring.gsub( l, "(#.+)$", function(h)
return mw.ustring.gsub( h, "%.([0-9A-Fa-f][0-9A-Fa-f])", "%%%1" );
end);
if p == "" and t == "" then
return mw.uri.decode(l, "PATH");
end
-- Need to transform text based on link per [[Help:Pipe trick]].
t = mw.ustring.match( l, "#(.+)$" );
if t ~= nil then
return mw.uri.decode(t, "PATH");
end
t = mw.ustring.gsub( l, "^([^#]*)#$", "%1", 1 );
t = mw.ustring.gsub( t, "(.-) ?%b()$", "%1", 1 );
t = mw.ustring.gsub( t, "^(.-),.*$", "%1", 1 );
t = mw.uri.decode(t, "PATH");
return t;
end
end, 1));
end
local function externalLink(s)
-- 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
return (mw.ustring.gsub(mw.text.trim(s), "^([^ \t]*)[ \t]*(.*)$", function(l, t)
t = mw.text.trim(t);
if t == "" then
return s;
elseif mw.ustring.sub( l, 1, 2 ) == "//" then
l = "http:" .. l;
end
l = mw.uri.new( l );
if l.protocol == nil or l.host == nil or mw.ustring.match( l.host, "%." ) == nil then
return s;
else
return t;
end
end, 1));
end
local function delinkLinkClass(s, pattern, delinker)
if type(s) ~= "string" then
error("Attempt to de-link non-string input.", 2);
elseif type(pattern) ~= "string" then
error('Patterns must begin a string.', 2);
end
-- Iterate over the text string, and replace any matched text. using the
-- delink function. We need to iterate one by one otherwise nested links
-- aren't detected properly.
local result, f, e, b, a = {};
repeat
f, e = mw.ustring.find(s, pattern);
if f == nil then
table.insert( result, s );
break;
end
if f > 1 then
b = mw.ustring.gsub( mw.ustring.sub(s, 1, f-1), "(%[+)$", mw.text.nowiki, 1 );
end
if e ~= nil then
a = mw.ustring.gsub( mw.ustring.sub(s, e+1), "^(%]+)", mw.text.nowiki, 1 );
else
a = "";
end
-- Replace text using one iteration.
s = mw.ustring.gsub( mw.ustring.sub(s, f, e), pattern, delinker, 1 );
-- Append to result and start after last result.
table.insert( result, b );
table.insert( result, s );
s = a;
until f == nil or s == "";
return table.concat( result );
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 args.comments ~= "no" then
text = mw.ustring.gsub(text, "<!%-%-.-%-%->", "") -- Remove html comments.
end
if args.wikilinks ~= "no" then
text = delinkLinkClass(text, "%[%[([^%[%]]*)%]%]", internalLink) -- De-link wikilinks.
end
if args.urls ~= "no" then
text = delinkLinkClass(text, "%[([^%[%]]*)%]", externalLink) -- De-link URLs.
end
if 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.
for k, v in pairs(frame.args) do
args = frame.args;
break;
end
if args == nil then args = frame:getParent().args; 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
