Module:FileUtil
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--[=[ MediaUtil Utilities for handling of media files, e.g. images, videos, ...
- addParameter()
- replaceParameter()
]=]
-- table for export local FileUtil = {}
FileUtil.addParameter = function ( file, parameter, value ) -- "value" is optional (default: "nil")
return FileUtil.replaceParameter( file, parameter, value , false)
end -- FileUtil.addParameter()
FileUtil.replaceParameter = function ( file, parameter, value , replace) -- "value" is optional (default: "nil")
-- "replace" is optional (default: "true") local replace = (replace == Nil or replace == true) if type( file ) == "string" then local fileNew,n = FileUtil.removeParameter(file, parameter) if n==0 or replace then if value then fileNew = fileNew:gsub('(%]%])','|'..parameter..'='..value..']]') else fileNew = fileNew:gsub('(%]%])','|'..parameter..']]') end return fileNew else return file end end return false
end -- FileUtil.replaceParameter()
FileUtil.removeParameter = function ( file, parameter )
if type( file ) == "string" then local fileNew,n = file:gsub('|%s*'..parameter..'%s*[^|%]]*%s*([|%]])','%1') return fileNew,n end return false
end -- FileUtil.removeParameter()
-- Provide template access and expose URLutil table to require
local p = {}
function p.addParameter( frame )
return FileUtil.addParameter( frame.args[1] or frame.args["file"], frame.args[2] or frame.args["parameter"], frame.args[3] or frame.args["value"]) or ""
end function p.replaceParameter( frame )
return FileUtil.replaceParameter( frame.args[1] or frame.args["file"], frame.args[2] or frame.args["parameter"], frame.args[3] or frame.args["value"]) or ""
end function p.removeParameter( frame )
return FileUtil.removeParameter( frame.args[1] or frame.args["file"], frame.args[2] or frame.args["parameter"]) or ""
end function p.FileUtil()
return FileUtil
end
return p