# Module:Template link general

-- This implements Template:Template link general and various other templates in its family
local getArgs = require('Module:Arguments').getArgs
local p = {}  
-- Is a string non-empty?
local function _ne(s)
return s ~= nil and s ~= ""
end  
local nw = mw.text.nowiki  
local function addTemplate(s)
local i, _ = s:find(':', 1, true)
if i == nil then
return 'Template:' .. s
end
local ns = s:sub(1, i - 1)
if ns == '' or mw.site.namespaces[ns] then
return s
else
return 'Template:' .. s
end
end  
local function trimTemplate(s)
local needle = 'template:'
if s:sub(1, needle:len):lower == needle then
return s:sub(needle:len + 1)
else
return s
end
end  
local function linkTitle(args)
if _ne(args.nolink) then
if _ne(args.subst) then
return 'subst:' .. args['1']
else
return args['1']
end
end  
local titleObj
local titlePart = '[['
if args['1'] then
-- This handles :Page and other NS
titleObj = mw.title.new(args['1'], 'Template')
else
titleObj = mw.title.getCurrentTitle
end  
titlePart = titlePart .. (titleObj ~= nil and titleObj.fullText or
addTemplate(args['1']))  
local textPart = args.alttext
if not _ne(textPart) then
if titleObj ~= nil then
textPart = titleObj:inNamespace("Template") and args['1'] or titleObj.fullText
else
-- redlink
textPart = args['1']
end
end  
if _ne(args.subst) then
-- HACK: the ns thing above is probably broken
textPart = 'subst:' .. textPart
end  
if _ne(args.brace) then
textPart = nw('')
elseif _ne(args.braceinside) then
textPart = nw('{') .. textPart .. nw('}')
end  
titlePart = titlePart .. '|' .. textPart .. ']]'
if _ne(args.braceinside) then
titlePart = nw('{') .. titlePart .. nw('}')
end
return titlePart
end  
function p.main
local args = getArgs(, {
trim = true,
removeBlanks = false
})
return p._main(args)
end  
function p._main(args)
local bold = _ne(args.bold) or _ne(args.boldlink) or _ne(args.boldname)
local italic = _ne(args.italic) or _ne(args.italics)
local dontBrace = _ne(args.brace) or _ne(args.braceinside)
local code = _ne(args.code) or _ne(args.tt)
local show_result = _ne(args._show_result)
local expand = _ne(args._expand)  
-- Build the link part
local titlePart = linkTitle(args)
if bold then titlePart = "**" .. titlePart .. "**" end
if _ne(args.nowrapname) then titlePart = '<span>' .. titlePart .. '</span>' end  
-- Build the arguments
local textPart = ""
local textPartBuffer = "&#124;"
local codeArguments = {}
local codeArgumentsString = ""
local i = 2
local j = 1
while args[i] do
local val = args[i]
if val ~= "" then
if _ne(args.nowiki) then
-- Unstrip nowiki tags first because calling nw on something that already contains nowiki tags will
-- mangle the nowiki strip marker and result in literal UNIQ...QINU showing up
val = nw(mw.text.unstripNoWiki(val))
end
local k, v = string.match(val, "(.*)=(.*)")
if not k then
codeArguments[j] = val
j = j + 1
else
codeArguments[k] = v
end
codeArgumentsString = codeArgumentsString .. textPartBuffer .. val
if italic then
val = '<span>' .. val .. '</span>'
end
textPart = textPart .. textPartBuffer .. val
end
i = i + 1
end  
-- final wrap
local ret = titlePart .. textPart
if not dontBrace then ret = nw('') end
if _ne(args.a) then ret = nw('*') .. '&nbsp;' .. ret end
if _ne(args.kbd) then ret = '<kbd>' .. ret .. '</kbd>' end
if code then
ret = '<code>' .. ret .. '</code>'
elseif _ne(args.plaincode) then
ret = '<code>' .. ret .. '</code>'
end
if _ne(args.nowrap) then ret = '<span>' .. ret .. '</span>' end  
-- Wrap as html??
local span = mw.html.create('span')
span:wikitext(ret)
---
if _ne(args.debug) then ret = ret .. '\n<pre>' .. mw.text.encode(mw.dumpObject(args)) .. '</pre>' end  
if show_result then
local result = mw.getCurrentFrame:expandTemplate{title = addTemplate(args[1]), args = codeArguments}
ret = ret .. " → " .. result
end  
if expand then
local query = mw.text.encode('')
local url = mw.uri.fullUrl('special:ExpandTemplates', 'wpInput=' .. query)
mw.log
ret = ret .. " [" .. tostring(url) .. "]"
end  
return ret
end  
return p