[bytes] fix bugs in bytesFind(Last)?Index

arcatdmz · May 5, 2019 · 1251423 · 1251423
1 parent fe9d5b4
commit 1251423
Showing 1 changed file with 6 additions and 6 deletions.
diff --git a/bytes/bytes.ts b/bytes/bytes.ts
@@ -6,10 +6,10 @@ 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 +27,10 @@ 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++;