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140byt.es -- encodeURIComponent based convert string to array of UTF-8 bytes
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| function( | |
| s, // string to be onverted into bytes | |
| a // placeholder | |
| ){ | |
| a=[]; // a is array, we'll return it | |
| // %-escape the byte sequence. All chars that are no escaped are basic ASCII | |
| encodeURIComponent(s) | |
| // traversing the string | |
| .replace( | |
| // capture %{char}{char} ({char} can be presumably 0..F) storing these two chars | |
| // or just one any char | |
| /%(..)|./g, | |
| // and passing to function | |
| function( | |
| c, // full captured string | |
| p // two chars in parens if those were captured | |
| ){ | |
| // push into array | |
| a.push( | |
| // if p is not "00" or is undefined (not captured) | |
| p != 0? | |
| // try to treat p as a hex value | |
| // if it succeded it will return anyting-above-zero (zero bytes are bypassed by p!=0) | |
| parseInt(p, 16) || | |
| // if not it will return NaN and it means that captured string was not escaped | |
| // getting charCode | |
| c.charCodeAt() | |
| : | |
| // special case: parens were captured but it parseInt would return zero | |
| 0 | |
| ) | |
| } | |
| ); | |
| // after doing that with all bot escaped and not escaped chars | |
| // the a array is filled with byte codes. Return it | |
| return a | |
| } |
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| function(s,a){a=[];encodeURIComponent(s).replace(/%(..)|./g,function(c,p){a.push(p!=0?parseInt(p,16)||c.charCodeAt():0)});return a} |
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| DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE | |
| Version 2, December 2004 | |
| Copyright (C) 2011 YOUR_NAME_HERE <YOUR_URL_HERE> | |
| Everyone is permitted to copy and distribute verbatim or modified | |
| copies of this license document, and changing it is allowed as long | |
| as the name is changed. | |
| DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE | |
| TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION | |
| 0. You just DO WHAT THE FUCK YOU WANT TO. |
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| { | |
| "name": "stringToByteArray", | |
| "description": "Convert a string of characters to an array of UTF-8 bytes using encodeURIComponent", | |
| "keywords": [ | |
| "alternative", | |
| "cryptography", | |
| "utf8" | |
| ] | |
| } |
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| <!DOCTYPE html> | |
| <title>stringToByteArray</title> | |
| <div>Expected value: <b>49|52|48|227|131|144|227|130|164|227|131|136|0</b></div> | |
| <div>Actual value: <b id="ret"></b></div> | |
| <script> | |
| var stringToByteArray = function(s,a){a=[];encodeURIComponent(s).replace(/%(..)|./g,function(c,p){a.push(p!=0?parseInt(p,16)||c.charCodeAt():0)});return a} | |
| document.getElementById( "ret" ).innerHTML = stringToByteArray("140バイト\x00").join("|") | |
| </script> |
this is fantastic work! @subzey, would you mind forking off of the master gist so we can pick it up?
c.charCodeAt(0) could be just c.charCodeAt(), as 0 is the default.
@mathiasbynens, thanks!
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Perfect!