forked from jestjs/jest
/
patternModeHelpers.ts
34 lines (29 loc) · 953 Bytes
/
patternModeHelpers.ts
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/**
* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
import ansiEscapes = require('ansi-escapes');
import chalk = require('chalk');
import stringLength = require('string-length');
export function printPatternCaret(
pattern: string,
pipe: NodeJS.WritableStream,
): void {
const inputText = `${chalk.dim(' pattern \u203A')} ${pattern}`;
pipe.write(ansiEscapes.eraseDown);
pipe.write(inputText);
pipe.write(ansiEscapes.cursorSavePosition);
}
export function printRestoredPatternCaret(
pattern: string,
currentUsageRows: number,
pipe: NodeJS.WritableStream,
): void {
const inputText = `${chalk.dim(' pattern \u203A')} ${pattern}`;
pipe.write(
ansiEscapes.cursorTo(stringLength(inputText), currentUsageRows - 1),
);
pipe.write(ansiEscapes.cursorRestorePosition);
}