[Webkit-unassigned] [Bug 10874] New: lang, xml:lang, content-language ignored when choosing fonts

Fri Sep 15 13:08:22 PDT 2006

http://bugzilla.opendarwin.org/show_bug.cgi?id=10874

           Summary: lang, xml:lang, content-language ignored when choosing
                    fonts
           Product: WebKit
           Version: 419.x
          Platform: Macintosh PowerPC
               URL: http://en.wikipedia.org/wiki/Han_unification
        OS/Version: Mac OS X 10.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at opendarwin.org
        ReportedBy: opendarwin at 2pi.dk

When rendering Chinese, Japanese and Korean pages, WebKit uses the
International preferences for choosing the font. The language attributes are
not considered. This means that Chinese pages come out wrong on a Japanese
computer.

Example:

<?xml version="1.0"?>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-CN" lang="zh-CN">
<head>
<meta http-equiv="content-language" content="zh-CN"/>
<title>&#x6E24;&#x9EA6;&#x5802;</title>
</head>
<body>
<h1>&#x9EA6;&#x754C;&#x65B0;&#x95FB; &#x82F9;&#x679C; It's Showtime
&#x7279;&#x522B;&#x53D1;&#x5E03;&#x4F1A;</h1>
</body>
</html>

The H1 is rendered in different fonts, depending on the user's language choice.
Traditional Chinese, simplified Chinese, and Japanese give three different
results, only the simplified Chinese is correct.

WebKit should look at lang/xml:lang attributes, and HTTP's Content-Language
header before using user defaults to choose fonts for unihan characters.

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