Method removeLinePrefixes

src/extension/commands/edit.ts:189–217

(editor: vs.TextEditor, selections: readonly vs.Selection[], prefixes: string[])

	}

	private async removeLinePrefixes(editor: vs.TextEditor, selections: readonly vs.Selection[], prefixes: string[]) {
		const document = editor.document;
		// In case we have overlapping selections, keep track of lines we've done.
		const doneLines = new Set<number>();

		await editor.edit((edit) => {
			for (const selection of selections) {
				for (let lineNumber = selection.start.line; lineNumber <= selection.end.line; lineNumber++) {
					if (doneLines.has(lineNumber))
						continue;
					doneLines.add(lineNumber);

					const line = document.lineAt(lineNumber);
					if (line.isEmptyOrWhitespace)
						continue;

					const lineContentStart = line.range.start.translate(0, line.firstNonWhitespaceCharacterIndex);
					for (const prefix of prefixes) {
						const possiblePrefixRange = new vs.Range(lineContentStart, lineContentStart.translate(0, prefix.length));
						const possiblePrefix = document.getText(possiblePrefixRange);
						if (possiblePrefix === prefix) {
							edit.delete(possiblePrefixRange);
							break;
						}
					}
				}
			}
		});
	}

	public dispose(): void {
		disposeAll(this.disposables);