azuredatastudio/extensions/notebook-renderers/src/textHelper.ts

/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the Source EULA. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/

import { handleANSIOutput } from './ansi';

function generateViewMoreElement(outputId: string) {
	const container = document.createElement('span');
	const first = document.createElement('span');
	first.textContent = 'Output exceeds the ';
	const second = document.createElement('a');
	second.textContent = 'size limit';
	second.href = `command:workbench.action.openSettings?["notebook.output.textLineLimit"]`;
	const third = document.createElement('span');
	third.textContent = '. Open the full output data';
	const forth = document.createElement('a');
	forth.textContent = ' in a text editor';
	forth.href = `command:workbench.action.openLargeOutput?${outputId}`;
	container.appendChild(first);
	container.appendChild(second);
	container.appendChild(third);
	container.appendChild(forth);
	return container;
}

export function truncatedArrayOfString(id: string, outputs: string[], linesLimit: number, container: HTMLElement) {
	let buffer = outputs.join('\n').split(/\r|\n|\r\n/g);
	let lineCount = buffer.length;

	if (lineCount < linesLimit) {
		const spanElement = handleANSIOutput(buffer.slice(0, linesLimit).join('\n'));
		container.appendChild(spanElement);
		return;
	}

	container.appendChild(generateViewMoreElement(id));

	const div = document.createElement('div');
	container.appendChild(div);
	div.appendChild(handleANSIOutput(buffer.slice(0, linesLimit - 5).join('\n')));

	// view more ...
	const viewMoreSpan = document.createElement('span');
	viewMoreSpan.innerText = '...';
	container.appendChild(viewMoreSpan);

	const div2 = document.createElement('div');
	container.appendChild(div2);
	div2.appendChild(handleANSIOutput(buffer.slice(lineCount - 5).join('\n')));
}