For the most part, these problems only pop up when you try to render RTL text visually, and then copy it back out from UI elements. In internal pipelines, howev

For the most part, these problems only pop up when you try to render RTL text visually, and then copy it back out from UI elements. In internal pipelines, however, it's just another string of opaque bytes that you perform a few very well-specified standard library operations on. (Arabic also has the connection challenge, which Hebrew does not, but usually renderers that do RTL right also handle the ligatures.