base256u

一个在字节和UTF-8码点之间转换的程序。保留可打印的ASCII字符，并将所有其他字符（包括换行符）映射到低Unicode码点。

$ cargo install base256u-cli
...

$ python -c 'import sys; sys.stdout.buffer.write(bytes(list(range(256))))' | base256u
°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏ !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJK
LMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~§ĀāĂ㥹ĆćĈĉĊċČčĎďĐđĒēĔĕĖė
ĘęĚěĜĝĞğĠġĢģĤĥĦħĨĩĪīĬĭĮįİıIJijĴĵĶķĸĹĺĻļĽľĿŀŁłŃńŅņŇň¤ŊŋŌōŎŏŐőŒœŔŕŖŗŘřŚśŜŝŞşŠšŢţ
ŤťŦŧŨũŪūŬŭŮůŰűŲųŴŵŶŷŸŹźŻżŽžſ

$ python -c 'import sys; sys.stdout.buffer.write(bytes(list(range(256))))' | base256u -ew 36
🌰🌱🌲🌳🌴🌵🌶🌷🌸🌹🌺🌻🌼🌽🌾🌿🍀🍁🍂🍃🍄🍅🍆🍇🍈🍉🍊🍋🍌🍍🍎🍏🍐🍑🍒🍓
🍔🍕🍖🍗🍘🍙🍚🍛🍜🍝🍞🍟🍠🍡🍢🍣🍤🍥🍦🍧🍨🍩🍪🍫🍬🍭🍮🍯🍰🍱🍲🍳🍴🍵🍶🍷
🍸🍹🍺🍻🍼🍽🍾🍿🐀🐁🐂🐃🐄🐅🐆🐇🐈🐉🐊🐋🐌🐍🐎🐏🐐🐑🐒🐓🐔🐕🐖🐗🐘🐙🐚🐛
🐜🐝🐞🐟🐠🐡🐢🐣🐤🐥🐦🐧🐨🐩🐪🐫🐬🐭🐮🐯🐰🐱🐲🐳🐴🐵🐶🐷🐸🐹🐺🐻🐼🐽🐾🐿
😀😁😂😃😄😅😆😇😈😉😊😋😌😍😎😏😐😑😒😓😔😕😖😗😘😙😚😛😜😝😞😟😠😡😢😣
😤😥😦😧😨😩😪😫😬😭😮😯😰😱😲😳😴😵😶😷😸😹😺😻😼😽😾😿🙀🙁🙂🙃🙄🙅🙆🙇
🙈🙉🙊🙋🙌🙍🙎🙏🤐🤑🤒🤓🤔🤕🤖🤗🤘🤙🤚🤛🤜🤝🤞🤟🤠🤡🤢🤣🤤🤥🤦🤧🤨🤩🤪🤫
🤬🤭🤮🤯

$ echo Pack my box with five dozen liquor jugs. | base256u
Pack my box with five dozen liquor jugs.º

$ echo Pack my box with five dozen liquor jugs. | base256u | base256u -d
Pack my box with five dozen liquor jugs.

$ echo Pack my box with five dozen liquor jugs. | base256u -e
🐀🐑🐓🐛🍐🐝🐩🍐🐒🐟🐨🍐🐧🐙🐤🐘🍐🐖🐙🐦🐕🍐🐔🐟🐪🐕🐞🍐🐜🐙🐡🐥🐟🐢🍐🐚🐥🐗🐣🍞🌺

$ echo Pack my box with five dozen liquor jugs. | base256u -e | base256u -de
Pack my box with five dozen liquor jugs.

$ dd if=/dev/urandom bs=36 count=1 2>/dev/null | base256u
B^$Éıŷ/āűũļşÎ%Ăż'żşAtiŮqHtÀŔwĸÂWŲŋŪķ

$ dd if=/dev/urandom bs=36 count=1 2>/dev/null | base256u -e
😵😟🌻🤖🍮🤢😗🐣😡🍦🐖🐾🍺🐊🌻🍽🐹🍳😣🐈🙌🐿🙎🍪🤙🤝🍫🐰🐮🙈😆🍗🍍🤨🐺🍗