[phobos] UTF-8 string slicing

Jacob Carlborg doob at me.com
Sat Aug 20 05:20:19 PDT 2011

On 20 aug 2011, at 11:38, unDEFER wrote:

> On Sat, 20 Aug 2011 06:49:33 +0400, Walter Bright <walter at digitalmars.com> wrote:
>> There isn't any getting away from understanding that UTF-8 is a multi-byte encoding.
> If it is so, then arr.popFront() must break UTF-8 strings ;-)
>> If you want to use an encoding with a 1:1 correspondence between indices and characters, use dchar encoding.
> For me use in 4 times more memory for ASCII seems too wasteful, sorry.

if you know for sure that a string will only contain ASCII you can use .length and the built-in slicing syntax. I doesn't matter what type of encoding you use with unicode, a non-ascii character will take up more than one byte.

/Jacob Carlborg

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