Setvadmin: 1 revision imported: Added some new pages and a Help:Cheatsheet

2016-08-21T23:40:32Z

1 revision imported: Added some new pages and a Help:Cheatsheet

Mr. Stradivarius: add User:Frietjes's fix for positional arguments specified with pv, switch to Module:Arguments, don't use a global args table, reorder the functions to make more sense, and switch indentation to tabs

2014-01-18T03:33:06Z

add User:Frietjes's fix for positional arguments specified with pv, switch to Module:Arguments, don't use a global args table, reorder the functions to make more sense, and switch indentation to tabs

New page

-- This module implements {{for loop}}.

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

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 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 = ''
for i, v in ipairs(variableVals) do
v = mw.text.trim(v) -- trim whitespace
local targs = constantArgs
targs[variableParam] = variableValPrefix .. v .. variableValPostfix
local expandedTemplate = p.callTemplate(template, targs)
result = result .. expandedTemplate
if variableVals[i + 1] then
result = result .. sep
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 = {}
for i, v in ipairs(args) do
if i ~= 1 then
variableVals[i - 1] = v
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

← Older revision	Revision as of 23:40, 21 August 2016
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Module:ForLoop - Revision history

Setvadmin: 1 revision imported: Added some new pages and a Help:Cheatsheet

Mr. Stradivarius: add User:Frietjes's fix for positional arguments specified with pv, switch to Module:Arguments, don't use a global args table, reorder the functions to make more sense, and switch indentation to tabs