[Webkit-unassigned] [Bug 37327] String::format() does not support UTF-8 on all platforms, yet used with UTF-8 strings

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=37327

Darin Adler <darin at apple.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|String::format() does not   |String::format() does not
                   |support UTF-8, yet used     |support UTF-8 on all
                   |with UTF-8 strings          |platforms, yet used with
                   |                            |UTF-8 strings

--- Comment #3 from Darin Adler <darin at apple.com> ---
This is a portability problem.

A bit of a blindspot for a lot of the project leaders who work at Apple because on Apple’s platforms the underlying C library calls pass through bytes without interpretation and so work fine with UTF-8 strings.

It’s possible we can fix the implementation for those other platforms; I’m not sure what the status of this is.

I suspect this won’t be completely resolved until we stop using C library functions that use format strings entirely (both with String::format and elsewhere), but it’s also true that many of the call sites use the utf8() function on strings that are processed in a way that already guarantees they have only ASCII characters, such as MIME types.

While we do want to get rid of String::format, it might take us a while.

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