I am trying to apply bold to **text** in slatejs editor and so far my attempts have been unsuccessful.
I came across this answer which seems to be a possible solution to the problem.

However, after modifying that answer it still refused to apply bold.

I tried adding match: n => Text.isText(n) and that made the whole paragraph bold.

Expected result: **text** => **text**

Actual result: **text** => **text**

How may I modify this to work as expected?

const withMarkdown = editor => {
    const { normalizeNode } = editor;

    editor.normalizeNode = entry => {
        const [node, path] = entry;

        if (!Text.isText(node)) {
            return normalizeNode([node, path]);
        }

        const boldMatch = node.text.match(/([*]{2})(.+?)([*]{2})/);
        if (!boldMatch) {
            return normalizeNode([node, path]);
        }

        let [searchMatch, asteriskMatch] = boldMatch;
        const { index: startIndex } = boldMatch;
        const endIndex = startIndex + searchMatch.length;

        /* does not apply bold */
        Transforms.setNodes(editor, { bold: true }, {
            at: {
                anchor: { path, offset: startIndex },
                focus: { path, offset: endIndex },
            }
        })

        normalizeNode([node, path]);
    }

    return editor;
}

Edit: Tried this and got the expected result but along with that came an error.

Transforms.insertText(editor, searchMatch, {
    at: {
        anchor: { path, offset: startIndex },
        focus: { path, offset: endIndex },
    }
})

Transforms.setNodes(editor,
    { bold: true },
    { 
        at: { 
            anchor: { path, offset: startIndex },
            focus: { path, offset: endIndex }
        },
        match: n => Text.isText(n), split: true
    }
);

Error message:

Could not completely normalize the editor after 126 iterations! This is usually due to incorrect normalization logic that leaves a node in an invalid state.