diff options
Diffstat (limited to 'lib/base64.nom')
| -rw-r--r-- | lib/base64.nom | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/base64.nom b/lib/base64.nom index a5bb9bb..a65a99d 100644 --- a/lib/base64.nom +++ b/lib/base64.nom @@ -6,6 +6,7 @@ %b64_str = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" %reverse_b64 = (%b64_str.%i = (%i - 1) for %i in 1 to (length of %b64_str)) %reverse_b64."=" = 0 + test: %cases = ["", "Zg==", "Zm8=", "Zm9v", "Zm9vYg==", "Zm9vYmE=", "Zm9vYmFy"] for %len = %encoded in %cases: @@ -16,7 +17,6 @@ test: assume ((base64 decode %encoded) == %plain) or barf ".." \(quote %encoded) base64 decoded to \(quote (base64 decode %encoded)) \ ..instead of \(quote %plain) - action [base64 %str, base64 encode %str, %str base64]: %chars = [] for %i in 1 to (length of %str) via 3: @@ -46,9 +46,9 @@ action [decode base64 %str, %str base64 decoded, base64 decode %str]: for %i in 1 to (length of %str) via 4: %indices = (%reverse_b64.(%str.%) for % in %i to (%i + 3)) add (chr ((%indices.1 << 2) + ((%indices.2 & 48) >> 4))) to %chars - if (%str.(%i+2) == "="): stop + if (%str.(%i + 2) == "="): stop add (chr (((%indices.2 & 15) << 4) + ((%indices.3 & 60) >> 2))) to %chars - if (%str.(%i+3) == "="): stop + if (%str.(%i + 3) == "="): stop add (chr (((%indices.3 & 3) << 6) + %indices.4)) to %chars return (%chars joined) |