imported>Wnt: Wnt moved page Module:Expression to Module:Sandbox/Wnt/Expression without leaving a redirect: Half-finished module challenged at AfD

2018-06-29T11:25:57Z

Wnt moved page Module:Expression to Module:Sandbox/Wnt/Expression without leaving a redirect: Half-finished module challenged at AfD

New page

--- this began long ago when a first test program for the Mandelbrot set went pear-shaped

local p={}

function chunk(text)
local text=mw.ustring.gsub(text,"(%d%s*)E(%s*[%d%+%-])","%1 E %2") -- force space around E notation to avoid going nuts later
local debuglog=""
local chunks={type={}}
local prowl=mw.ustring.gmatch(text,"(%S+)")
local firstbit
local num=1
local op=2
local var=3
local warning=4
local defs={num={"^([%d%.]*)(.*)$"},op={"^(E?)(.*)$","^([%(%)%*%+%-%?%%/!^]?)(.*)$"},var={"^(%a*)(.*)$"}}
t=prowl()
while t do
local ot=t
for i,j in pairs(defs) do
for _,v in pairs(j) do
firstbit,t=mw.ustring.match(t,v)
debuglog=debuglog.."<"..tostring(firstbit)..","..tostring(t)..">"..tostring(i).."i"..tostring(j).."j"..tostring(t).."t"..tostring(v).."v"
assert(t,debuglog) -- should always deliver a null string even if the target isn't there
if firstbit ~= "" then
table.insert(chunks,firstbit)
table.insert(chunks.type,i)
end
end
end
if t==ot then
firstbit,t=mw.ustring.match(t,"^(.)(.*)$")
table.insert(chunks,'ignored:'..firstbit)
table.insert(chunks.type,warning)
end
if t=="" then t=prowl() end -- if you run out of bits between spaces, pull a new interspace bit.
end
return chunks
end

function p.main(frame)
local args=frame.args or {}
local parent=frame.getParent(frame) or {}
local pargs=parent.args or {}
local expr=args.expr or pargs.expr or "" -- (Handle nothing in with nothing out?)
local chunks=chunk(expr)
return #chunks,"types"..table.concat(chunks.type,",").."values"..table.concat(chunks,",")
-- check 1: getting the input sorted out into chunks
end

return p

Module:Sandbox/Wnt/Expression - Revision history

imported>Wnt: Wnt moved page Module:Expression to Module:Sandbox/Wnt/Expression without leaving a redirect: Half-finished module challenged at AfD