Difference between revisions of "Module:For loop/sandbox"
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blackwiki>Pppery (Belated impl of edit request) |
blackwiki>Pppery |
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Line 23: | Line 23: | ||
local sep = args[1] or '' | local sep = args[1] or '' | ||
local constantArgs = p.getConstants(args) | local constantArgs = p.getConstants(args) | ||
− | + | local variableVals = p.getVariableVals(args) | |
− | |||
− | |||
− | |||
− | local variableVals = p.getVariableVals(args | ||
− | local result = | + | local result = '' |
local addSeparator = false; | local addSeparator = false; | ||
for i, v in ipairs(variableVals) do | for i, v in ipairs(variableVals) do | ||
v = mw.text.trim(v) -- trim whitespace | v = mw.text.trim(v) -- trim whitespace | ||
if #v > 0 or not yesno(args.skipBlanks) then | if #v > 0 or not yesno(args.skipBlanks) then | ||
− | if addSeparator | + | if addSeparator then |
− | result | + | result = result .. sep |
end | end | ||
− | addSeparator = true | + | addSeparator = true; |
local targs = constantArgs | local targs = constantArgs | ||
targs[variableParam] = variableValPrefix .. v .. variableValPostfix | targs[variableParam] = variableValPrefix .. v .. variableValPostfix | ||
if calltemplates then | if calltemplates then | ||
− | + | result = result .. p.callTemplate(template, targs) | |
− | |||
− | |||
− | |||
else | else | ||
result = result .. makeTemplate(template, targs) | result = result .. makeTemplate(template, targs) | ||
Line 50: | Line 43: | ||
end | end | ||
end | end | ||
− | + | return result | |
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
end | end | ||
Line 75: | Line 60: | ||
end | end | ||
− | function p.getVariableVals(args | + | function p.getVariableVals(args) |
local variableVals = {} | local variableVals = {} | ||
if args.start or args.stop or args.by then | if args.start or args.stop or args.by then | ||
Line 89: | Line 74: | ||
else | else | ||
for i, v in ipairs(args) do | for i, v in ipairs(args) do | ||
− | if | + | if i ~= 1 then |
variableVals[i - 1] = v | variableVals[i - 1] = v | ||
end | end |
Revision as of 04:54, 22 February 2019
Documentation for this module may be created at Module:For loop/sandbox/doc
-- This module implements {{for loop}}.
local getArgs = require('Module:Arguments').getArgs
local yesno = require('Module:Yesno')
local makeTemplate = require('Module:Template invocation').invocation
p = {}
function p.main(frame)
local args = getArgs(frame, {
trim = false,
removeBlanks = false
})
return p._main(args)
end
function p._main(args)
local template = args['call'] or 'void'
local calltemplates = yesno(args.substall or "", true) or not mw.isSubsting()
local variableParam = args.pv
variableParam = tonumber(variableParam) or variableParam or 1 -- fix for positional parameters
local variableValPrefix = args.prefix or ''
local variableValPostfix = args.postfix or ''
local sep = args[1] or ''
local constantArgs = p.getConstants(args)
local variableVals = p.getVariableVals(args)
local result = ''
local addSeparator = false;
for i, v in ipairs(variableVals) do
v = mw.text.trim(v) -- trim whitespace
if #v > 0 or not yesno(args.skipBlanks) then
if addSeparator then
result = result .. sep
end
addSeparator = true;
local targs = constantArgs
targs[variableParam] = variableValPrefix .. v .. variableValPostfix
if calltemplates then
result = result .. p.callTemplate(template, targs)
else
result = result .. makeTemplate(template, targs)
end
end
end
return result
end
function p.getConstants(args)
local constantArgNums = p.getArgNums(args, 'pc', 'n')
local constantArgs = {}
for _, num in ipairs(constantArgNums) do
local keyArg = 'pc' .. tostring(num) .. 'n'
local valArg = 'pc' .. tostring(num) .. 'v'
local key = args[keyArg]
key = tonumber(key) or key
local value = args[valArg]
constantArgs[key] = value
end
return constantArgs
end
function p.getVariableVals(args)
local variableVals = {}
if args.start or args.stop or args.by then
if args[2] then
error("Both start/stop/by and numbered parameters specified")
end
start = tonumber(args.start or 1)
stop = tonumber(args.stop or 1)
by = tonumber(args.by or 1)
for i = start, stop, by do
variableVals [#variableVals + 1] = i
end
else
for i, v in ipairs(args) do
if i ~= 1 then
variableVals[i - 1] = v
end
end
end
return variableVals
end
function p.getArgNums(args, prefix, suffix)
-- Returns a table containing the numbers of the arguments that exist
-- for the specified prefix and suffix.
local nums = {}
local pattern = '^' .. prefix .. '([1-9]%d*)' .. suffix .. '$'
for k, v in pairs(args) do
local num = tostring(k):match(pattern)
if num then
nums[#nums + 1] = tonumber(num)
end
end
table.sort(nums)
return nums
end
function p.callTemplate(template, targs)
return mw.getCurrentFrame():expandTemplate{title = template, args = targs}
end
return p