35 lines
1.3 KiB
JavaScript
35 lines
1.3 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.maxLetterValue = exports.bitsPerByte = exports.bitsPerLetter = exports.alphabetByValue = exports.alphabetByEncoding = void 0;
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const alphabetByEncoding = {};
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exports.alphabetByEncoding = alphabetByEncoding;
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const alphabetByValue = new Array(64);
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exports.alphabetByValue = alphabetByValue;
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for (let i = 0, start = "A".charCodeAt(0), limit = "Z".charCodeAt(0); i + start <= limit; i++) {
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const char = String.fromCharCode(i + start);
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alphabetByEncoding[char] = i;
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alphabetByValue[i] = char;
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}
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for (let i = 0, start = "a".charCodeAt(0), limit = "z".charCodeAt(0); i + start <= limit; i++) {
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const char = String.fromCharCode(i + start);
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const index = i + 26;
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alphabetByEncoding[char] = index;
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alphabetByValue[index] = char;
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}
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for (let i = 0; i < 10; i++) {
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alphabetByEncoding[i.toString(10)] = i + 52;
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const char = i.toString(10);
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const index = i + 52;
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alphabetByEncoding[char] = index;
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alphabetByValue[index] = char;
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}
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alphabetByEncoding["+"] = 62;
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alphabetByValue[62] = "+";
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alphabetByEncoding["/"] = 63;
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alphabetByValue[63] = "/";
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const bitsPerLetter = 6;
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exports.bitsPerLetter = bitsPerLetter;
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const bitsPerByte = 8;
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exports.bitsPerByte = bitsPerByte;
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const maxLetterValue = 0b111111;
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exports.maxLetterValue = maxLetterValue;
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