Module:Sandbox: Difference between revisions

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(Created page with "--[[ {{Helper module |name=Paramtest |fname1 = is_empty(arg) |ftype1 = String |fuse1 = Returns true if arg is not defined or contains only whitespace |fname2 = has_content(arg) |ftype2 = String |fuse2 = Returns true if arg exists and does not only contain whitespace |fname3 = default_to(arg1,arg2) |ftype3 = String, Any value |fuse3 = If arg1 exists and does not only contain whitespace, the function returns arg1, otherwise returns arg2 |fname4 = defaults{ {arg1,arg2},...}...")
 
(Replaced content with "local getArgs = require('Module:Arguments').getArgs local p = {} function p.main(frame) local args = getArgs(frame) return p._main(args) end function p._main(args) local first = args[1] or '' local second = args[2] or '' return first .. ' ' .. second end return p")
Tag: Replaced
 
(One intermediate revision by the same user not shown)
Line 1: Line 1:
--[[
local getArgs = require('Module:Arguments').getArgs
{{Helper module
|name=Paramtest
|fname1 = is_empty(arg)
|ftype1 = String
|fuse1 = Returns true if arg is not defined or contains only whitespace
|fname2 = has_content(arg)
|ftype2 = String
|fuse2 = Returns true if arg exists and does not only contain whitespace
|fname3 = default_to(arg1,arg2)
|ftype3 = String, Any value
|fuse3 = If arg1 exists and does not only contain whitespace, the function returns arg1, otherwise returns arg2
|fname4 = defaults{ {arg1,arg2},...}
|ftype4 = {String, Any value}...
|fuse4 = Does the same as <code>default_to()</code> run over every table passed
|fname5 = table_is_empty(arg)
|ftype5 = Table
|fuse5 = Returns true if the table has no content, it does not check if the content of the table contains anything
|fname6 = table_has_content(arg)
|ftype6 = Table
|fuse6 = returns true if the table has content, it does not check if the content of the table contains anything
}}
--]]
 
local checkType, checkTypeForNamedArg
do
local _libraryUtil = require("libraryUtil");
checkType = _libraryUtil.checkType;
checkTypeForNamedArg = _libraryUtil.checkTypeForNamedArg;
end
 
--
-- Tests basic properties of parameters
--
 
local p = {}
local p = {}


--
function p.main(frame)
-- Tests if the parameter is empty, all white space, or undefined
local args = getArgs(frame)
--
return p._main(args)
 
function p.is_empty(arg)
return not string.find(arg or '', '%S')
end
 
--
-- Tests if the table parameter is empty
--
 
function p.table_is_empty(arg)
for _, _ in pairs(arg) do
return false
end
return true
end
 
--
-- Returns the parameter if it has any content, the default (2nd param)
--
 
function p.default_to(arg, default)
if string.find(arg or '', '%S') then
return arg
else
return default
end
end
end


--
function p._main(args)
-- Returns a list of paramaters if it has any content, or the default
local first = args[1] or ''
--
local second = args[2] or ''
function p.defaults(args)
return first .. ' ' .. second
checkType("defaults", 1, args, "table");
local ret = {}
for i, v in ipairs(args) do
checkTypeForNamedArg("defaults", i, v, "table");
ret[i] = p.default_to(v[1], v[2]);
end
return unpack(ret, 1, #args);
end
 
--
-- Tests if the parameter has content
-- The same as !is_empty, but this is more readily clear
--
 
function p.has_content(arg)
return string.find(arg or '', '%S')
end
 
--
-- Tests if the table parameter has content
-- The same as !table_is_empty, but this is more readily clear
--
 
function p.table_has_content(arg)
for _, _ in pairs(arg) do
return true
end
return false
end
 
--
-- uppercases first letter
--
 
function p.ucfirst(arg)
if not arg or arg:len() == 0 then
return nil
elseif arg:len() == 1 then
return arg:upper()
else
return arg:sub(1,1):upper() .. arg:sub(2)
end
end
 
--
-- uppercases first letter, lowercases everything else
--
 
function p.ucflc(arg)
if not arg or arg:len() == 0 then
return nil
elseif arg:len() == 1 then
return arg:upper()
else
return arg:sub(1,1):upper() .. arg:sub(2):lower()
end
end
end


return p
return p

Latest revision as of 13:45, 24 September 2023

Documentation for this module may be created at Module:Sandbox/doc 

local getArgs = require('Module:Arguments').getArgs
local p = {}

function p.main(frame)
	local args = getArgs(frame)
	return p._main(args)
end

function p._main(args)
	local first = args[1] or ''
	local second = args[2] or ''
	return first .. ' ' .. second
end

return p
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