Merge pull request microsoft#184730 from microsoft/tyriar/181834

Remove nbsp replacing from buffer content tracker

Author: Tyriar

src/vs/workbench/contrib/terminalContrib/accessibility/browser/bufferContentTracker.ts

@@ -82,9 +82,8 @@ export class BufferContentTracker {
 			const isWrapped = buffer.getLine(i + 1)?.isWrapped;
 			currentLine += line.translateToString(!isWrapped);
 			if (currentLine && !isWrapped || i === (buffer.baseY + this._xterm.raw.rows - 1)) {
-				const line = replaceWithNonBreakingSpaces(currentLine);
 				if (line.length) {
-					cachedLines.push(line);
+					cachedLines.push(currentLine);
 					currentLine = '';
 				}
 			}
@@ -122,18 +121,13 @@ export class BufferContentTracker {
 			const isWrapped = buffer.getLine(i + 1)?.isWrapped;
 			currentLine += line.translateToString(!isWrapped);
 			if (currentLine && !isWrapped || i === (buffer.baseY + this._xterm.raw.rows - 1)) {
-				const line = replaceWithNonBreakingSpaces(currentLine);
-				if (line.length) {
+				if (currentLine.length) {
 					this._priorEditorViewportLineCount++;
-					this._lines.push(line);
+					this._lines.push(currentLine);
 					currentLine = '';
 				}
 			}
 		}
 		this._logService.debug('Viewport content update complete, ', this._lines.length, ' lines in the viewport');
 	}
 }
-
-export function replaceWithNonBreakingSpaces(s: string): string {
-	return s.replace(new RegExp('  ', 'g'), ' \xA0');
-}

src/vs/workbench/contrib/terminalContrib/accessibility/test/browser/bufferContentTracker.test.ts

@@ -20,7 +20,7 @@ import { TerminalConfigHelper } from 'vs/workbench/contrib/terminal/browser/term
 import { writeP } from 'vs/workbench/contrib/terminal/browser/terminalTestHelpers';
 import { XtermTerminal } from 'vs/workbench/contrib/terminal/browser/xterm/xtermTerminal';
 import { ITerminalConfiguration } from 'vs/workbench/contrib/terminal/common/terminal';
-import { BufferContentTracker, replaceWithNonBreakingSpaces } from 'vs/workbench/contrib/terminalContrib/accessibility/browser/bufferContentTracker';
+import { BufferContentTracker } from 'vs/workbench/contrib/terminalContrib/accessibility/browser/bufferContentTracker';
 import { ILifecycleService } from 'vs/workbench/services/lifecycle/common/lifecycle';
 import { TestLifecycleService } from 'vs/workbench/test/browser/workbenchTestServices';
 import { Terminal } from 'xterm';
@@ -72,22 +72,18 @@ suite('Buffer Content Tracker', () => {
 		assert.strictEqual(bufferTracker.lines.length, 0);
 		await writeP(xterm.raw, prompt);
 		xterm.clearBuffer();
-		await bufferTracker.update();
+		bufferTracker.update();
 		assert.deepStrictEqual(bufferTracker.lines, [prompt]);
-		assert.strictEqual(bufferTracker.lines.length, 1);
 	});
 	test('repeated updates should not change the content', async () => {
 		assert.strictEqual(bufferTracker.lines.length, 0);
 		await writeP(xterm.raw, prompt);
-		await bufferTracker.update();
+		bufferTracker.update();
 		assert.deepStrictEqual(bufferTracker.lines, [prompt]);
-		assert.strictEqual(bufferTracker.lines.length, 1);
-		await bufferTracker.update();
+		bufferTracker.update();
 		assert.deepStrictEqual(bufferTracker.lines, [prompt]);
-		assert.strictEqual(bufferTracker.lines.length, 1);
-		await bufferTracker.update();
+		bufferTracker.update();
 		assert.deepStrictEqual(bufferTracker.lines, [prompt]);
-		assert.strictEqual(bufferTracker.lines.length, 1);
 	});
 	test('should add lines in the viewport and scrollback', async () => {
 		await writeAndAssertBufferState(promptPlusData, 38, xterm.raw, bufferTracker);
@@ -98,31 +94,31 @@ suite('Buffer Content Tracker', () => {
 	test('should refresh viewport', async () => {
 		await writeAndAssertBufferState(promptPlusData, 6, xterm.raw, bufferTracker);
 		await writeP(xterm.raw, '\x1b[3Ainserteddata');
-		await bufferTracker.update();
-		assert.deepStrictEqual(bufferTracker.lines, [promptPlusData, promptPlusData, `${promptPlusData}inserteddata`, promptPlusData, promptPlusData, promptPlusData].map(s => replaceWithNonBreakingSpaces(s)));
+		bufferTracker.update();
+		assert.deepStrictEqual(bufferTracker.lines, [promptPlusData, promptPlusData, `${promptPlusData}inserteddata`, promptPlusData, promptPlusData, promptPlusData]);
 	});
 	test('should refresh viewport with full scrollback', async () => {
-		const content = replaceWithNonBreakingSpaces(`${prompt}\r\n`.repeat(1030).trimEnd());
+		const content = `${prompt}\r\n`.repeat(1030).trimEnd();
 		await writeP(xterm.raw, content);
-		await bufferTracker.update();
+		bufferTracker.update();
 		await writeP(xterm.raw, '\x1b[4Ainsertion');
-		await bufferTracker.update();
+		bufferTracker.update();
 		const expected = content.split('\r\n');
 		expected[1025] = `${prompt}insertion`;
 		assert.deepStrictEqual(bufferTracker.lines[1025], `${prompt}insertion`);
 	});
 	test('should cap the size of the cached lines, removing old lines in favor of new lines', async () => {
 		const content = `${prompt}\r\n`.repeat(1036).trimEnd();
 		await writeP(xterm.raw, content);
-		await bufferTracker.update();
-		const expected = content.split('\r\n').map(s => replaceWithNonBreakingSpaces(s));
+		bufferTracker.update();
+		const expected = content.split('\r\n');
 		// delete the 6 lines that should be trimmed
 		for (let i = 0; i < 6; i++) {
 			expected.pop();
 		}
 		// insert a new character
 		await writeP(xterm.raw, '\x1b[2Ainsertion');
-		await bufferTracker.update();
+		bufferTracker.update();
 		expected[1027] = `${prompt}insertion`;
 		assert.strictEqual(bufferTracker.lines.length, expected.length);
 		assert.deepStrictEqual(bufferTracker.lines, expected);
@@ -132,8 +128,8 @@ suite('Buffer Content Tracker', () => {
 async function writeAndAssertBufferState(data: string, rows: number, terminal: Terminal, bufferTracker: BufferContentTracker): Promise<void> {
 	const content = `${data}\r\n`.repeat(rows).trimEnd();
 	await writeP(terminal, content);
-	await bufferTracker.update();
+	bufferTracker.update();
 	assert.strictEqual(bufferTracker.lines.length, rows);
-	assert.deepStrictEqual(bufferTracker.lines, content.split('\r\n').map(s => replaceWithNonBreakingSpaces(s)));
+	assert.deepStrictEqual(bufferTracker.lines, content.split('\r\n'));
 }