1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/framework/env/encode/file_path_element.lua	Sun Oct 25 12:00:00 2009 +0100
     1.3 @@ -0,0 +1,22 @@
     1.4 +--[[--
     1.5 +encoded_path_element =     -- string which can't contain evil stuff like "/"
     1.6 +encode.file_path_element(
     1.7 +  path_element             -- string to be encoded
     1.8 +)
     1.9 +
    1.10 +This function is encoding a string in a way that it can be used as a file or directory name, without security risks. See the source for details.
    1.11 +
    1.12 +--]]--
    1.13 +
    1.14 +function encode.file_path_element(path_element)
    1.15 +  return (
    1.16 +    string.gsub(
    1.17 +      string.gsub(
    1.18 +        path_element, "[^0-9A-Za-z_%.-]",
    1.19 +        function(char)
    1.20 +          return string.format("%%%02x", string.byte(char))
    1.21 +        end
    1.22 +      ), "^%.", string.format("%%%%%02x", string.byte("."))
    1.23 +    )
    1.24 +  )
    1.25 +end