monaco-editor
Version:
A browser based code editor
45 lines • 2.14 kB
JavaScript
/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
;
import { createScanner } from '../parser/htmlScanner.js';
import { DocumentHighlightKind } from './../../vscode-languageserver-types/main.js';
import { TokenType } from '../htmlLanguageTypes.js';
export function findDocumentHighlights(document, position, htmlDocument) {
var offset = document.offsetAt(position);
var node = htmlDocument.findNodeAt(offset);
if (!node.tag) {
return [];
}
var result = [];
var startTagRange = getTagNameRange(TokenType.StartTag, document, node.start);
var endTagRange = typeof node.endTagStart === 'number' && getTagNameRange(TokenType.EndTag, document, node.endTagStart);
if (startTagRange && covers(startTagRange, position) || endTagRange && covers(endTagRange, position)) {
if (startTagRange) {
result.push({ kind: DocumentHighlightKind.Read, range: startTagRange });
}
if (endTagRange) {
result.push({ kind: DocumentHighlightKind.Read, range: endTagRange });
}
}
return result;
}
function isBeforeOrEqual(pos1, pos2) {
return pos1.line < pos2.line || (pos1.line === pos2.line && pos1.character <= pos2.character);
}
function covers(range, position) {
return isBeforeOrEqual(range.start, position) && isBeforeOrEqual(position, range.end);
}
function getTagNameRange(tokenType, document, startOffset) {
var scanner = createScanner(document.getText(), startOffset);
var token = scanner.scan();
while (token !== TokenType.EOS && token !== tokenType) {
token = scanner.scan();
}
if (token !== TokenType.EOS) {
return { start: document.positionAt(scanner.getTokenOffset()), end: document.positionAt(scanner.getTokenEnd()) };
}
return null;
}
//# sourceMappingURL=htmlHighlighting.js.map