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n1073645 2019-11-13 09:02:36 +00:00
parent 4541d75f49
commit dfd4cca43f
1 changed files with 11 additions and 9 deletions
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20
src/core/lib/Stream.mjs
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@ -158,14 +158,15 @@ export default class Stream {
/**
* Build's the skip forward table from the value to be searched.
* Builds the skip forward table from the value to be searched.
*
* @param val
* @param len
* @param {Uint8Array} val
* @param {Number} len
* @returns {Uint8Array}
*/
function preprocess(val, len) {
const skiptable = new Array();
val.forEach(function(element, index) {
val.forEach((element, index) => {
skiptable[element] = len - index;
});
return skiptable;
@ -189,8 +190,8 @@ export default class Stream {
found = true;
// Loop through the elements comparing them to val.
for (let x = length-1; x+1; x--) {
if (this.bytes[(this.position-length) + x] !== val[x]) {
for (let x = length-1; x > -1; x--) {
if (this.bytes[this.position-length + x] !== val[x]) {
found = false;
// If element is not equal to val's element then jump forward by the correct amount.
@ -199,7 +200,7 @@ export default class Stream {
}
}
if (found) {
this.position = (this.position - length);
this.position -= length;
break;
}
}
@ -209,10 +210,11 @@ export default class Stream {
/**
* Consume bytes if it matches the supplied value.
*
* @param val
* @param {Number} val
*/
consumeWhile(val) {
while ((this.position < this.length) && (this.bytes[this.position++] === val));
while ((this.position < this.length) && (this.bytes[(this.position++)] === val))
this.position--;
}
/**