Module:StripFilename
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Lua
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This Lua module removes the "File:" or "Image:" namespace prefix and any valid file extension from a given filename (both case-insensitive).
Examples
[edit]| Input | Output | Notes |
|---|---|---|
{{#invoke:StripFilename|main|File:Example.svg}}
|
Example | |
{{#invoke:StripFilename|main|Image:Example.mid}}
|
Example | |
{{#invoke:StripFilename|main|Example.JPG}}
|
Example | Uppercase extension |
{{#invoke:StripFilename|main|Example.foo}}
|
Example.foo | Unknown extension |
{{#invoke:StripFilename|main|fiLE:Example.svg}}
|
Example | Mixed-case namespace (works in MediaWiki) |
{{#invoke:StripFilename|svg|Example.pdf}}
|
Example.svg | keep, replace or add ".svg" |
Code
local p = {}
function p.main(frame)
local f = frame["args"][1]
-- Strip whitespace at beginning and end of input
f = string.gsub(f,"^%s*(.-)%s*$","%1")
-- Remove namespace prefix
f = string.gsub(f,"^[Ff][Ii][Ll][Ee]:(.*)$","%1")
f = string.gsub(f,"^[Ii][Mm][Aa][Gg][Ee]:(.*)$","%1")
-- Remove any recognized extension
local e = string.lower(string.gsub(f,"^.*%.([^%.]*)$","%1"))
local map = {svg=1, png=1, jpg=1, jpeg=1, gif=1, tif=1, tiff=1, xcf=1, mid=1, ogg=1, ogv=1, djvu=1, oga=1, flac=1, wav=1, webm=1, pdf=1, mp3=1}
if map[e]
then n = string.gsub(f,"^(.*)%.[^%.]*$","%1")
else n = f
end
return n
end
function p.svg(frame)
local f = frame["args"][1]
-- Strip whitespace at beginning and end of input
f = string.gsub(f,"^%s*(.-)%s*$","%1")
-- Remove namespace prefix
f = string.gsub(f,"^[Ff][Ii][Ll][Ee]:(.*)$","%1")
f = string.gsub(f,"^[Ii][Mm][Aa][Gg][Ee]:(.*)$","%1")
-- Replace underscores with spaces
f = string.gsub(f,"_"," ")
-- Keep, replace with, or add "svg" extension
local e = string.lower(string.gsub(f,"^.*%.([^%.]*)$","%1"))
local map = {png=1, jpg=1, jpeg=1, gif=1, tif=1, tiff=1, xcf=1, mid=1, ogg=1, ogv=1, djvu=1, oga=1, flac=1, wav=1, webm=1, pdf=1, mp3=1}
if e=="svg"
then n = f
elseif map[e]
then n = string.gsub(f,"^(.*)%.[^%.]*$","%1.svg")
else n = f..".svg"
end
return n
end
return p