Module:Sandbox/Perryprog/xlink Source: en.wikipedia.org/wiki/Module:Sandbox/Perryprog/xlink
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Background
[edit]Eventually I want the loose equivalent of a {{xsign}} for all the different special-link-templates I use (I tend to avoid the external link syntax). The end goal is to be able to say something like {{subst:xlink|URL here}}, and depending on the pattern the URL matches it would emit wikitext (assuming substitution works out well—I wouldn't be surprised if it's impossible) for either {{diff2}}, {{diff4}}, {{oldid}}, and others as time goes on.
Small shorter-term TODO:
- Actually learn how substitution depth works and all that jazz. (See here, which was from substituting the #invoke call.)
- Given
[DiffURL label], emit{{diff2|id|label}} - Given
[DiffURL#section label], emit{{diff2|id|section|label}} - Have a less-strict match (e.g., URL param order) for diff-urls with
oldid=prev. - Switch to {{diff4}} if a numerical value for
oldidis present.- And also check if that template or its docs needs fixing, because every time I use it I get the parameters backwards...
Longer-term TODO:
- A lot.
local p = {}
local prevDiffStart = "https://en%.wikipedia%.org/w/index%.php%?title=.-&diff=prev&"
function p.xlink(frame)
-- https://en.wikipedia.org/w/index.php?title=User_talk:Perryprog&diff=prev&oldid=999347924&diffmode=source
-- Should become {{diff2|999347924}}
local match = string.match(frame.args[1], prevDiffStart .. "oldid=(%d+)")
return frame:expandTemplate({title = "Diff2", args = {match}})
end
return p