Module:For loop - Revision history

TheChairman: 1 revision imported

2020-05-24T19:15:11Z

1 revision imported

en>Johnuniq: require Module:Template invocation only if required (see Template talk:Post-nominals#Use of Module:Template_invocation); clean whitespace, variables

2020-05-22T07:38:08Z

require Module:Template invocation only if required (see Template talk:Post-nominals#Use of Module:Template_invocation); clean whitespace, variables

TheChairman: 1 revision imported

2020-05-16T20:36:56Z

1 revision imported

en>Pppery: Belatedly implementing edit request by SMcCandlish on talk page: no separators after empty parameters

2019-02-22T04:58:13Z

Belatedly implementing edit request by SMcCandlish on talk page: no separators after empty parameters

New page

-- 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
local output = p.callTemplate(template, targs)
if #mw.text.trim(output) == 0 then
addSeparator = false
end
result = result .. output
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

← Older revision	Revision as of 19:15, 24 May 2020
(No difference)

@@ Line 3: / Line 3: @@
 local getArgs = require('Module:Arguments').getArgs
 local yesno = require('Module:Yesno')
-local makeTemplate = require('Module:Template invocation').invocation
+local p = {}
 function p.main(frame)
@@ Line 27: / Line 26: @@
 	local result = ''
 	local addSeparator = false;
-	for i, v in ipairs(variableVals) do
+	for _, v in ipairs(variableVals) do
-		v = mw.text.trim(v) -- trim whitespace
+		v = mw.text.trim(v)
 		if #v > 0 or not yesno(args.skipBlanks) then
 			if addSeparator then
@@ Line 43: / Line 42: @@
 				result = result .. output
 			else
 				result = result .. makeTemplate(template, targs)
 			end
@@ Line 70: / Line 70: @@
 			error("Both start/stop/by and numbered parameters specified")
 		end
-		start = tonumber(args.start or 1)
+		local start = tonumber(args.start or 1)
-		stop = tonumber(args.stop or 1)
+		local stop = tonumber(args.stop or 1)
-		by = tonumber(args.by or 1)
+		local by = tonumber(args.by or 1)
 		for i = start, stop, by do
 			variableVals [#variableVals + 1] = i
 		end
@@ Line 91: / Line 91: @@
 	local nums = {}
 	local pattern = '^' .. prefix .. '([1-9]%d*)' .. suffix .. '$'
-	for k, v in pairs(args) do
+	for k, _ in pairs(args) do
 		local num = tostring(k):match(pattern)
 		if num then

← Older revision	Revision as of 20:36, 16 May 2020
(No difference)