[Fribidi-discuss] resolution of neutral characters

[Tomas Frydrych]

Hi everyone,

I think I might have found a bug in FriBidi's handling of neutral 
characters. I am not sure whether this is a bug in FriBidi, or 
whether this is a problem with the Unicode algorithm, but one way or 
another the resulting behaviour is unintuitive.

The following string, where capitals represent RTL characters,

    "A log(k) B"

resolves to

    "B (log(k A"

I think that the correct visual string should be

    "B log(k) A"

Obviously, the closing parenthesis is presently resolved to an RTL 
character (embeding level 1), while the opening parenthesis is 
treated as LTR character (level 2). It seems to me that matching 
pairs of parentheses, braces, etc., should always be resolved to the 
embeding level of the opening element of the pair.

Tomas