monaco-editor
Version:
A browser based code editor
33 lines (30 loc) • 1.92 kB
JavaScript
import { commonPrefixLength } from '../../../../../base/common/strings.js';
import { Range } from '../../../../common/core/range.js';
import { TextLength } from '../../../../common/core/text/textLength.js';
import { TextReplacement } from '../../../../common/core/edits/textEdit.js';
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
function singleTextRemoveCommonPrefix(edit, model, validModelRange) {
const modelRange = validModelRange ? edit.range.intersectRanges(validModelRange) : edit.range;
if (!modelRange) {
return edit;
}
const normalizedText = edit.text.replaceAll('\r\n', '\n');
const valueToReplace = model.getValueInRange(modelRange, 1 /* EndOfLinePreference.LF */);
const commonPrefixLen = commonPrefixLength(valueToReplace, normalizedText);
const start = TextLength.ofText(valueToReplace.substring(0, commonPrefixLen)).addToPosition(edit.range.getStartPosition());
const text = normalizedText.substring(commonPrefixLen);
const range = Range.fromPositions(start, edit.range.getEndPosition());
return new TextReplacement(range, text);
}
function singleTextEditAugments(edit, base) {
// The augmented completion must replace the base range, but can replace even more
return edit.text.startsWith(base.text) && rangeExtends(edit.range, base.range);
}
function rangeExtends(extendingRange, rangeToExtend) {
return rangeToExtend.getStartPosition().equals(extendingRange.getStartPosition())
&& rangeToExtend.getEndPosition().isBeforeOrEqual(extendingRange.getEndPosition());
}
export { singleTextEditAugments, singleTextRemoveCommonPrefix };