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37c3cd1117
* Start moving emmet to strict mode First part of moving the emmet extension to strict mode TypeScript. This change focuses on adding annotations when things can be undefined and removing jsdoc type comments * Fix a few more errors * Fix compile errors * Tiny updates
36 lines
1.3 KiB
TypeScript
36 lines
1.3 KiB
TypeScript
/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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/* Based on @sergeche's work in his emmet plugin */
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import * as vscode from 'vscode';
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import evaluate from '@emmetio/math-expression';
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import { DocumentStreamReader } from './bufferStream';
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export function evaluateMathExpression() {
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if (!vscode.window.activeTextEditor) {
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vscode.window.showInformationMessage('No editor is active');
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return;
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}
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const editor = vscode.window.activeTextEditor;
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const stream = new DocumentStreamReader(editor.document);
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editor.edit(editBuilder => {
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editor.selections.forEach(selection => {
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const pos = selection.isReversed ? selection.anchor : selection.active;
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stream.pos = pos;
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try {
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const result = String(evaluate(stream, true));
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editBuilder.replace(new vscode.Range(stream.pos, pos), result);
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} catch (err) {
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vscode.window.showErrorMessage('Could not evaluate expression');
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// Ignore error since most likely it’s because of non-math expression
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console.warn('Math evaluation error', err);
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}
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});
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});
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}
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