Re: Xcode Editor's Regex now uses PCRE instead of ICU?
Re: Xcode Editor's Regex now uses PCRE instead of ICU?
- Subject: Re: Xcode Editor's Regex now uses PCRE instead of ICU?
- From: "Clark Cox" <email@hidden>
- Date: Thu, 13 Mar 2008 00:37:18 -0700
On Wed, Mar 12, 2008 at 5:40 PM, Alastair Houghton
<email@hidden> wrote:
> On 12 Mar 2008, at 23:01, John Engelhart wrote:
>
> > Since my observed behavior of CFString / NSString is that it tries
> > to avoid converting the strings buffer it was initialized with if
> > possible.
>
> Yes, that's true. You can see the sources for CFString in the Darwin
> source tree. Furthermore, string constants (even @"" and CFSTR("")
> ones) are encoded in ASCII by the compiler, which makes 8-bit strings
> quite common in practice.
FYI: As of Leopard, this is no longer necessarily true (i.e. the
string constants being ASCII). Full UTF-8 strings are now supported
within @"" and CFSTR("") strings, so there are cases where even these
strings are encoded as UTF-16 by the compiler.
--
Clark S. Cox III
email@hidden
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