29 lines
551 B
Plaintext
29 lines
551 B
Plaintext
export function decodeLength(bytes: Array<number>): number {
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let len = 0;
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let size = 0;
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for (;;) {
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let elem = bytes.shift() as number;
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len |= (elem & 0x7f) << (size * 7);
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size += 1;
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if ((elem & 0x80) === 0) {
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break;
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}
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}
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return len;
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}
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export function encodeLength(bytes: Array<number>, len: number) {
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let rem_len = len;
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for (;;) {
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let elem = rem_len & 0x7f;
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rem_len >>= 7;
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if (rem_len == 0) {
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bytes.push(elem);
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break;
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} else {
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elem |= 0x80;
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bytes.push(elem);
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}
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}
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}
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