Ansi vs Unicode API
Andrei Alexandrescu
SeeWebsiteForEmail at erdani.org
Mon Nov 16 00:56:24 PST 2009
Denis Koroskin wrote:
> I'd like to raise 2 issues for a discussion.
>
> First, Phobos makes calls to different functions, based on the OS we are
> running on (e.g. CreateFileA vs. CreateFileW) and I wonder if it's
> *really* necessary, since Microsoft has a Unicode Layer for those
> Operating Systems.
>
> All an application needs to do to call W API on those OS'es is link with
> unicows.lib (which could be a part of Phobos). It does nothing on Win2k+
> and only triggers on 9x OS family.
>
> A very good overview of it is written here:
> http://msdn.microsoft.com/en-us/goglobal/bb688166.aspx
>
> Second, "A" API accepts ansi strings as parameters, not UTF-8 strings. I
> think this should be reflected in the function signatures, since D
> encourages distinguishing between UTF-8 and ANSI strings and not store
> the latter as char[].
>
> LPCSTR currently resolves to char*/const(char)*, but it could be better
> for it to be an alias to ubyte*/const(ubyte)* so that user couldn't pass
> unicode string to an API that doesn't expect one. The same is applicable
> to other APIs, too, for example, how does C stdlib co-operate with
> Unicode? I.e. is core.stdc.stdio.fopen() unicode-aware?
>
> What are your thoughts on the subject?
I think it's a great idea. Can phobos redistribute the unicows.lib (cute
name)?
Andrei
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