Key to entities used below: א ... ו - The first six Hebrew letters (strongly RTL). ‭ - The LRO (left-to-right override) formatting character. ‬ - The PDF (pop directional formatting) formatting character; closes LRO. In each DIV of the test: - the first BDI, having no characters with strong direction, should be LTR by default; - the second BDI, having an LTR character first, should be LTR by default; - the third BDI, having an RTL character first, should be RTL by default.