from Wiktionary, Creative Commons Attribution/Share-Alike License
- right to left: Used when identifying people in a picture or image. For example, an image of three people can have the caption: "RtoL: Bill, Sam and Phil."
Sorry, no etymologies found.
In that way, we would be able to leave the LtoR/RtoL codes or whatever in their proper places, and move only the text inside of them.