All files / services/notebook notebook-cell-slugs.ts

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
 
 
 
 
 
 
 
 
5x
 
5x
 
5x
10x
10x
 
10x
5x
 
5x
4x
 
 
 
 
5x
 
 
import * as vscode from 'vscode';
 
/**
 * Returns the highest auto-generated slug number (`cell-<n>`) in the notebook.
 * @param notebook The notebook document.
 * @returns The highest auto-generated slug number, or 0 if none exist.
 */
export function getMaxCellSlugNumber(notebook: vscode.NotebookDocument): number {
	const slugPattern = /^cell-(\d+)$/;
 
	let maxNumber = 0;
 
	for (const c of notebook.getCells()) {
		const slug: string | undefined = c.metadata?.slug;
		const match = typeof slug === 'string' ? slug.match(slugPattern) : null;
 
		if (match) {
			const n = parseInt(match[1], 10);
 
			if (n > maxNumber) {
				maxNumber = n;
			}
		}
	}
 
	return maxNumber;
}