Base64 decode data: Difference between revisions
added RPL
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Um9zZXR0YSBDb2RlIEJhc2U2NCBkZWNvZGUgZGF0YSB0YXNr
Rosetta Code Base64 decode data task
</pre>
=={{header|RPL}}==
{{works with|RPL|HP-49C}}
« "" DUP DUP2 → s a b c d
« ""
1 s SIZE '''FOR''' j
0 3 '''FOR''' k
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
s j k + DUP SUB POS
'''NEXT'''
4 →LIST 1 - { a b c d } STO
a 4 * b 16 / IP + CHR +
'''IF''' c -1 ≠ '''THEN''' b 16 MOD 16 * c 4 / IP + CHR + '''END'''
'''IF''' d -1 ≠ '''THEN''' c 4 MOD 64 * d + CHR + '''END'''
4 '''STEP'''
» » '<span style="color:blue">B64→</span>' STO
"VG8gZXJyIGlzIGh1bWFuLCBidXQgdG8gcmVhbGx5IGZvdWwgdGhpbmdzIHVwIHlvdSBuZWVkIGEgY29tcHV0ZXIuCiAgICAtLSBQYXVsIFIuIEVocmxpY2g=" <span style="color:blue">B64→</span>
{{out}}
<pre>
1: "To err is human, but to really foul things up you need a computer.
-- Paul R. Ehrlich"
</pre>
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