Module:Sandbox/Aidan9382/Link once: Difference between revisions

Revision as of 07:05, 5 July 2023

Latest revision as of 06:54, 11 August 2023

(10 intermediate revisions by the same user not shown)

Line 2:

local yesno = require("Module:Yesno")

-- Behaviour for these functions determined via [[Help:Pipe trick]]

local function getWikilinkInfo(wikilink) -- Returns the wikilink's target and everything else

local function wlPipeTrick(target)

target = target:gsub("^[a-zA-Z0-9 _-]-:(.*)$", "%1") --Remove the namespace

if target:find("%(.+%)$") then --If ending parenthesis

target = target:gsub("^(.-) *%(.+%)$", "%1") --Remove ending parenthesis

else

target = target:gsub("^(.-), .*$", "%1") --Else, remove ending comma

end

return target

end

local function wlReversePipeTrick(target)

local current = mw.title.getCurrentTitle().prefixedText

if current:find("%(.+%)$") then --If ending parenthesis

target = target .. current:gsub("^.-( *%(.+%))$", "%1") --Append ending parenthesis

else

target = target .. current:gsub("^.-(, .*)$", "%1") --Else, append ending comma

end

return target

end

local function getWikilinkInfo(wikilink) -- Returns the wikilink's target and everything else

--[=[

Returns the wikilink's target and its display text.

Automatically recreates the effect of any [[Help:pipe tricks|]]

--]=]

local trim = mw.text.trim

local trimmed = string.sub(wikilink, 3, -3)

local firstPipe = string.find(trimmed, "|")

if firstPipe then

returnlocal target = string.sub(trimmed, 1, firstPipe-1),
local displayText = string.sub(trimmed, firstPipe+1)

if target == "" then -- [[|XYZ]]

return trim(wlReversePipeTrick(displayText)), trim(displayText)

elseif displayText == "" then -- [[XYZ|]]

return trim(target), trim(wlPipeTrick(target))

else --[[ABC|XYZ]]

return trim(target), trim(displayText)

end

else

local out = trim(trimmed)

return trimmed, nil

if out:find("^/.-/+$") and mw.title.getCurrentTitle().namespace ~= 0 then -- [[/Test/]]

return out, out:gsub("^/(.-)/+$", "%1")

else -- [[Test]]

return trimmedout, nil

end

end

end

Line 14 ⟶ 53:

local function linkOnce(text, options) -- Module entry point

--[=[

We are going to traverse the text sequentiallylinearly ourselves.

Using %b[] isn't preferable as nested brackets (E.g. the wikilink to t

in [[File:x|Cap[[t]]ion]]) would be missed and doing a check for

%[%[.-%]%] wouldn't work for the exact same testcase for other reasons

--]=]

local options = options or {follow_redirects=true}

local newText = {}

local scannerPosition = 1

Line 45 ⟶ 84:

local newContainer = (openWikilinks[#openWikilinks] or {Text=newText}).Text

if wlTarget:find("^[Ii]mage:") or wlTarget:find("^[Ff]ile:") or wlTarget:find("^[Cc]ategory:") then --Files/Images/Categories aren't processed (they aren't really wikilinks)

newContainer[#newContainer+1] = wlText

else

Line 88 ⟶ 127:

local function main(frame) -- Template entry point

local args = require('Module:Arguments').getArgs(frame)

return linkOnce(args[1] or "", {

follow_redirects = yesno(args.follow_redirects) or falsetrue,

})

end

return {

-- Main entry points

main = main,

linkOnce = linkOnce,

-- Helper functions

wlPipeTrick = wlPipeTrick,

wlReversePipeTrick = wlReversePipeTrick,

getWikilinkInfo = getWikilinkInfo

}