diff -r 000000000000 -r 4f2f89ce4247 WebCore/html/HTMLFontElement.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/html/HTMLFontElement.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,152 @@
+/*
+ * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
+ *           (C) 1999 Antti Koivisto (koivisto@kde.org)
+ *           (C) 2000 Simon Hausmann <hausmann@kde.org>
+ * Copyright (C) 2003, 2006, 2008, 2010 Apple Inc. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+#include "HTMLFontElement.h"
+
+#include "Attribute.h"
+#include "CSSPropertyNames.h"
+#include "CSSValueKeywords.h"
+#include "HTMLNames.h"
+
+using namespace WTF;
+
+namespace WebCore {
+
+using namespace HTMLNames;
+
+HTMLFontElement::HTMLFontElement(const QualifiedName& tagName, Document* document)
+    : HTMLElement(tagName, document)
+{
+    ASSERT(hasTagName(fontTag));
+}
+
+PassRefPtr<HTMLFontElement> HTMLFontElement::create(const QualifiedName& tagName, Document* document)
+{
+    return adoptRef(new HTMLFontElement(tagName, document));
+}
+
+// Allows leading spaces.
+// Allows trailing nonnumeric characters.
+// Returns 10 for any size greater than 9.
+static bool parseFontSizeNumber(const String& s, int& size)
+{
+    unsigned pos = 0;
+    
+    // Skip leading spaces.
+    while (isSpaceOrNewline(s[pos]))
+        ++pos;
+    
+    // Skip a plus or minus.
+    bool sawPlus = false;
+    bool sawMinus = false;
+    if (s[pos] == '+') {
+        ++pos;
+        sawPlus = true;
+    } else if (s[pos] == '-') {
+        ++pos;
+        sawMinus = true;
+    }
+    
+    // Parse a single digit.
+    if (!isASCIIDigit(s[pos]))
+        return false;
+    int num = s[pos++] - '0';
+    
+    // Check for an additional digit.
+    if (isASCIIDigit(s[pos]))
+        num = 10;
+    
+    if (sawPlus) {
+        size = num + 3;
+        return true;
+    }
+    
+    // Don't return 0 (which means 3) or a negative number (which means the same as 1).
+    if (sawMinus) {
+        size = num == 1 ? 2 : 1;
+        return true;
+    }
+    
+    size = num;
+    return true;
+}
+
+bool HTMLFontElement::mapToEntry(const QualifiedName& attrName, MappedAttributeEntry& result) const
+{
+    if (attrName == sizeAttr ||
+        attrName == colorAttr ||
+        attrName == faceAttr) {
+        result = eUniversal;
+        return false;
+    }
+    
+    return HTMLElement::mapToEntry(attrName, result);
+}
+
+bool HTMLFontElement::cssValueFromFontSizeNumber(const String& s, int& size)
+{
+    int num;
+    if (!parseFontSizeNumber(s, num))
+        return false;
+        
+    switch (num) {
+        case 2: 
+            size = CSSValueSmall; 
+            break;
+        case 0: // treat 0 the same as 3, because people expect it to be between -1 and +1
+        case 3: 
+            size = CSSValueMedium; 
+            break;
+        case 4: 
+            size = CSSValueLarge; 
+            break;
+        case 5: 
+            size = CSSValueXLarge; 
+            break;
+        case 6: 
+            size = CSSValueXxLarge; 
+            break;
+        default:
+            if (num > 6)
+                size = CSSValueWebkitXxxLarge;
+            else
+                size = CSSValueXSmall;
+    }
+    return true;
+}
+
+void HTMLFontElement::parseMappedAttribute(Attribute* attr)
+{
+    if (attr->name() == sizeAttr) {
+        int size;
+        if (cssValueFromFontSizeNumber(attr->value(), size))
+            addCSSProperty(attr, CSSPropertyFontSize, size);
+    } else if (attr->name() == colorAttr) {
+        addCSSColor(attr, CSSPropertyColor, attr->value());
+    } else if (attr->name() == faceAttr) {
+        addCSSProperty(attr, CSSPropertyFontFamily, attr->value());
+    } else
+        HTMLElement::parseMappedAttribute(attr);
+}
+
+}