Created
April 13, 2018 11:46
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DecodeLatin1URIComponent
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/* Table generated with python3: | |
import json | |
characters = [bytes([ch]).decode('iso-8859-1') for ch in range(256)] | |
print(json.dumps(characters)) | |
*/ | |
const latin1ToCodepoint = ["\u0000", "\u0001", "\u0002", "\u0003", "\u0004", "\u0005", "\u0006", "\u0007", "\b", "\t", "\n", "\u000b", "\f", "\r", "\u000e", "\u000f", "\u0010", "\u0011", "\u0012", "\u0013", "\u0014", "\u0015", "\u0016", "\u0017", "\u0018", "\u0019", "\u001a", "\u001b", "\u001c", "\u001d", "\u001e", "\u001f", " ", "!", "\"", "#", "$", "%", "&", "'", "(", ")", "*", "+", ",", "-", ".", "/", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", ":", ";", "<", "=", ">", "?", "@", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "[", "\\", "]", "^", "_", "`", "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "{", "|", "}", "~", "\u007f", "\u0080", "\u0081", "\u0082", "\u0083", "\u0084", "\u0085", "\u0086", "\u0087", "\u0088", "\u0089", "\u008a", "\u008b", "\u008c", "\u008d", "\u008e", "\u008f", "\u0090", "\u0091", "\u0092", "\u0093", "\u0094", "\u0095", "\u0096", "\u0097", "\u0098", "\u0099", "\u009a", "\u009b", "\u009c", "\u009d", "\u009e", "\u009f", "\u00a0", "\u00a1", "\u00a2", "\u00a3", "\u00a4", "\u00a5", "\u00a6", "\u00a7", "\u00a8", "\u00a9", "\u00aa", "\u00ab", "\u00ac", "\u00ad", "\u00ae", "\u00af", "\u00b0", "\u00b1", "\u00b2", "\u00b3", "\u00b4", "\u00b5", "\u00b6", "\u00b7", "\u00b8", "\u00b9", "\u00ba", "\u00bb", "\u00bc", "\u00bd", "\u00be", "\u00bf", "\u00c0", "\u00c1", "\u00c2", "\u00c3", "\u00c4", "\u00c5", "\u00c6", "\u00c7", "\u00c8", "\u00c9", "\u00ca", "\u00cb", "\u00cc", "\u00cd", "\u00ce", "\u00cf", "\u00d0", "\u00d1", "\u00d2", "\u00d3", "\u00d4", "\u00d5", "\u00d6", "\u00d7", "\u00d8", "\u00d9", "\u00da", "\u00db", "\u00dc", "\u00dd", "\u00de", "\u00df", "\u00e0", "\u00e1", "\u00e2", "\u00e3", "\u00e4", "\u00e5", "\u00e6", "\u00e7", "\u00e8", "\u00e9", "\u00ea", "\u00eb", "\u00ec", "\u00ed", "\u00ee", "\u00ef", "\u00f0", "\u00f1", "\u00f2", "\u00f3", "\u00f4", "\u00f5", "\u00f6", "\u00f7", "\u00f8", "\u00f9", "\u00fa", "\u00fb", "\u00fc", "\u00fd", "\u00fe", "\u00ff"]; | |
function decodeLatin1URIComponent(uriEncoded) { | |
return uriEncoded.replace(/%([0-9a-f]{2})/gi, (_, hex) => { | |
const char = parseInt(hex, 16); | |
return latin1ToCodepoint[char]; | |
}); | |
} | |
console.log(decodeLatin1URIComponent('foo bar %C4%C4 dee')); |
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