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: Jens Alfke <email@hidden>
- Date: Thu, 13 Mar 2008 07:55:11 -0700
On 13 Mar '08, at 4:01 AM, Thomas Engelmeier wrote:
As of Leopard or as of Xcode 3.x?
I think it just matters which version of gcc is being used, so that
would make it an Xcode feature, basically.
And, if I read the paragraph above correctly, the compiler will
expand @"UTF-8 string" in the source code to UTF16 in the string
constant in the TEXT section?
The email you quoted just said "there are cases" where this happens.
My hunch, from what I know of CFString, is that ascii string constants
will be stored in 8-bit, while ones containing any non-ascii
characters would be 16-bit. (CFStrings are never stored in UTF-8 form
internally. It's either ascii or the 'default C string encoding',
which is locale-dependent, e.g. MacRoman for the English language.)
Of course you should never write any code that relies on this...
—Jens
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