On 09/11/2014 08:04 PM, AsmMan wrote:
> what's an unicode alphabetic character?
Alphabetic is defined as Lu + Ll + Lt + Lm + Lo + Nl + Other_Alphabetic,
all of which are explained here:
http://www.unicode.org/Public/5.1.0/ucd/UCD.html#General_Category_Values
> I misunderstood isAlpha(), I
> used to think it's to validate letters like a, b, è, é .. z etc but
> isAlpha('º') from std.uni module return true.
º happens to be in the "Letter, Lowercase" category so yes, it is isAlpha().
> How can I validate only
> the letters of an unicode alphabet in D or should I write one?
There are so many alphabets in the world. It is likely that a Unicode
character will be a part of one.
> I know I can do:
>
> bool is_id(dchar c)
> {
> return c >= 'a' && c <= 'z' || c >= 'A' && c <= 'z' || c >= 0xc0;
> }
There is a misunderstanding. There are so many Unicode characters that
are >= 0xc0 but not a part of the Alphabetic category. For example: ←
(U+2190 LEFTWARDS ARROW).
Ali
