Module directional_formatting_characters 

Constants with Unicode’s directional formatting characters

https://unicode.org/reports/tr9/#Directional_Formatting_Characters

Constants

FSI

First Strong Isolate

LRE

Left-to-Right Embedding

LRI

Left-to-Right Isolate

LRO

Left-to-Right Override

PDF

Pop Directional Formatting

PDI

Pop Directional Isolate

RLE

Right-to-Left Embedding

RLI

Right-to-Left Isolate

RLO

Right-to-Left Override