encode-base64

Base64 encode.

encode-base64 will encode string <data> into base64 string <output data>.

If "input-length" clause is used, then <input length> is the number of bytes encoded, otherwise the entirety of <data> is encoded.

The result is stored in <output data> (in "to" clause).

Base64-encoded strings are often used where binary data needs to be in a format that complies with certain text-based protocols, such as in attaching documents in email, or embedding binary documents (such as "JPG" images for example) in web pages with "data:image/jpg;base64..." specified, etc.

An example that encodes a string, decodes, and finally checks if they match:

// Original string, generally this would be binary data in most cases
set-string dt ="  oh well  "
// Encode in base64
encode-base64 dt to out_dt 
decode-base64 out_dt to new_dt
if-true dt equal new_dt
    @Success!
else-if
    @Failure!
end-if

In the next example, "input-length" clause is used, and only a partial of the input string is encoded, then later compared to the original:

// Original string, generally this would be binary data in most cases
set-string dt ="  oh well  "
// Encode in base64, encode only 6 bytes
encode-base64 dt input-length 6 to out_dt
decode-base64 out_dt to new_dt
// Get length of decoded string
string-length new_dt to new_len
if-true new_len not-equal 6
    @Failure!
else-if
    @Success!
end-if
if-true dt equal new_dt length new_len
    @Success!
else-if
    @Failure! [<<print-out dt>>] [<<print-out new_dt>>]
end-if

Base64

decode-base64 encode-base64 See all documentation