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[bytes] fix bytesFindIndex and bytesFindLastIndex (denoland/deno_std#381)

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Original: 8714252916
This commit is contained in:
Jun Kato 2019-05-08 01:02:31 +09:00 • committed by Ryan Dahl
parent 14afad59aa
commit 480b9e71ff
2 changed files with 22 additions and 7 deletions
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14
bytes/bytes.ts
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@ -6,10 +6,11 @@ export function bytesFindIndex(a: Uint8Array, pat: Uint8Array): number {
for (let i = 0; i < a.length; i++) {
if (a[i] !== s) continue;
const pin = i;
let matched = 1;
let matched = 1,
j = i;
while (matched < pat.length) {
i++;
if (a[i] !== pat[i - pin]) {
j++;
if (a[j] !== pat[j - pin]) {
break;
}
matched++;
@ -27,10 +28,11 @@ export function bytesFindLastIndex(a: Uint8Array, pat: Uint8Array): number {
for (let i = a.length - 1; i >= 0; i--) {
if (a[i] !== e) continue;
const pin = i;
let matched = 1;
let matched = 1,
j = i;
while (matched < pat.length) {
i--;
if (a[i] !== pat[pat.length - 1 - (pin - i)]) {
j--;
if (a[j] !== pat[pat.length - 1 - (pin - j)]) {
break;
}
matched++;