HomeSYNOPSIS
result = string.from64(s [, i [, j]])
DESCRIPTION
Decodes base64 encoded ASCII data into binary.
When i and/or j are given, uses the substring s[i],
s[i+1], ···, s[j].
The default value for i is 1;
the default value for j is the number of characters in s.
RETURN VALUE
String containing the decoded data.
ERRORS
Passed data must be a string, or else an error is thrown.
If data does not contain valid base64 encoded data, this function returns nil.
If data does not contain valid base64 encoded data, this function returns nil.
NOTES
Base64 is commonly used to encode email attachments. It contains only valid 7-bit ASCII characters.
EXAMPLE
>
print(string.from64("QUJDRDQq"))
ABCD4*