Module:Str rightc
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This implements: {{str rightc}} but if |notemplate= is set to a non-empty string, arguments from the invocation can be used.
Usage
{{#invoke:str rightc|rightc|notemplate=1|string|count}}{{#invoke:str rightc|rightc|notemplate=1|string|count|result if empty}}
Gives a substring of length count characters from the right-side end of the string, or, if provided, returns result if empty when string is empty.
Examples
{{#invoke:str rightc|rightc|notemplate=1 |Lorem ipsum dolor sit amet |10}}→ r sit amet{{#invoke:str rightc|rightc|notemplate=1 |Lorem ipsum dolor sit amet |1}}→ t{{#invoke:str rightc|rightc|notemplate=1 |Lorem ipsum dolor sit amet |0}}→{{#invoke:str rightc|rightc|notemplate=1 | |1 |string is empty}}→ string is empty{{#invoke:str rightc|rightc|notemplate=1 |123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-1 |99}}→ 3456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-123456789-1
require[[strict]]
local p = {}
function p._rightc(str, count, empty)
str = mw.text.trim(str or '')
if '' == str then
return mw.text.trim(empty or '')
end
count = tonumber(count or '')
if nil == count then
return str
end
if count <= 0 then
return ''
end
return mw.ustring.sub(str, -count)
end
function p.rightc(frame)
local args = frame.args
if '' == (args.notemplate or '') then
args = frame:getParent().args
end
return p._rightc(args[1], args[2], args[3])
end
return p