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chore(common/models): removes incomplete early check-in

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Joshua A. Horton 2024-08-08 12:53:04 +07:00
parent dda43aa399
commit 7016e5b40b
2 changed files with 0 additions and 45 deletions
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44
common/models/wordbreakers/src/main/default/searchForProperty.ts
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@ -1,44 +0,0 @@
import { WordBreakProperty } from "./data.inc.js";
export function searchForProperty(codePoint: number): WordBreakProperty {
const bucketSize = codePoint <= 0xFFFF ? 2 : 3;
// SMP chars take a bit more space to encode.
// TODO: encode the strings & import them here.
const encodedArray = bucketSize == 2 ? "" /* BMP string */ : "" /* non-BMP string */;
return _searchForProperty(encodedArray, codePoint, bucketSize, 0, encodedArray.length / bucketSize - 1);
}
/**
* Binary search for the word break property of a given CODE POINT.
*
* The auto-generated data.ts master array defines a **character range**
* lookup table. If a character's codepoint is equal to or greater than
* the start-of-range value for an entry and exclusively less than the next
* entry's start-of-range, it falls within the first entry's range bucket
* and is classified accordingly by this method.
*/
function _searchForProperty(encodedArray: string, codePoint: number, bucketSize: number, left: number, right: number): WordBreakProperty {
// All items that are not found in the array are assigned the 'Other' property.
if (right < left) { // May need special handling at end of BMP / start of non-BMP.
return WordBreakProperty.Other;
}
let midpoint = left + ~~((right - left) / 2);
let candidate = encodedArray.codePointAt(bucketSize * midpoint);
// If out-of-bounds, gives NaN.
let nextRange = encodedArray.codePointAt(bucketSize * (midpoint + 1));
let startOfNextRange = isNaN(nextRange) ? Infinity : nextRange;
if (codePoint < candidate) {
return _searchForProperty(encodedArray, codePoint, bucketSize, left, midpoint - 1);
} else if (codePoint >= startOfNextRange) {
return _searchForProperty(encodedArray, codePoint, bucketSize, midpoint + 1, right);
}
// We found it!
const propertyCode = encodedArray.charCodeAt(bucketSize * (midpoint + 1) - 1);
return propertyCode as WordBreakProperty;
}

1
common/models/wordbreakers/src/main/test-index.ts
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@ -3,4 +3,3 @@ export * from './index.js';
// Exposes some internal properties for unit-test accessibility
export { WordBreakProperty } from './default/data.inc.js';
export { searchForProperty } from './default/searchForProperty.js';