[Issue 7054] std.format.formattedWrite uses code units count as width instead of characters count

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=7054

Marco Leise <Marco.Leise at gmx.de> changed:

           What    |Removed                     |Added
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                 CC|                            |Marco.Leise at gmx.de

--- Comment #6 from Marco Leise <Marco.Leise at gmx.de> ---
Graphemes work until you meet full-width characters.
Ｇｒａｐｈｅｍｅｓ  ｗｏｒｋ  ｕｎｔｉｌ  ｙｏｕ  ｍｅｅｔ  ｆｕｌｌ－ｗｉｄｔｈ  ｃｈａｒａｃｔｅｒｓ．

>From Wikipedia: "With fixed-width fonts, a halfwidth character occupies half
the width of a fullwidth character, hence the name."

https://en.wikipedia.org/wiki/Halfwidth_and_fullwidth_forms

We need UTF decoding, grapheme clustering, character categorizing,
super-cow-power width specifiers in our writeln.

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