Moves the caret one character to the left. Do not go to the previous line.
When in a bidi locale and at a R2L character the caret is moved to the
beginning of the R2L segment (visually right) and then one character to the
left (visually left because it's now in a L2R segment).
Moves the caret one character to the left. Do not go to the previous line. When in a bidi locale and at a R2L character the caret is moved to the beginning of the R2L segment (visually right) and then one character to the left (visually left because it's now in a L2R segment).