1 files changed, 107 insertions, 0 deletions
diff --git a/WebCore/css/FontFamilyValue.cpp b/WebCore/css/FontFamilyValue.cpp
new file mode 100644
index 0000000..90a8c9d
--- /dev/null
+++ b/WebCore/css/FontFamilyValue.cpp
@@ -0,0 +1,107 @@
+/*
+ * (C) 1999-2003 Lars Knoll (knoll@kde.org)
+ * Copyright (C) 2004, 2005, 2006, 2007, 2008 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 "FontFamilyValue.h"
+
+namespace WebCore {
+
+// FIXME: This appears identical to isCSSTokenizerIdentifier from CSSPrimitiveValue.cpp, we should use a single function.
+static bool isValidCSSIdentifier(const String& string)
+{
+    unsigned length = string.length();
+    if (!length)
+        return false;
+
+    const UChar* characters = string.characters();
+    UChar c = characters[0];
+    if (!(c == '_' || (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '-' || c >= 0x80))
+        return false;
+
+    for (unsigned i = 1; i < length; ++i) {
+        c = characters[i];
+        if (!(c == '_' || (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '-' || c >= 0x80))
+            return false;
+    }
+
+    return true;
+}
+
+// Quotes the string if it needs quoting.
+// We use single quotes because serialization code uses double quotes, and it's nice to
+// avoid having to turn all the quote marks into &quot; as we would have to.
+static String quoteStringIfNeeded(const String& string)
+{
+    if (isValidCSSIdentifier(string))
+        return string;
+
+    // FIXME: Also need to transform control characters (00-1F) into \ sequences.
+    // FIXME: This is inefficient -- should use a Vector<UChar> instead.
+    String quotedString = string;
+    quotedString.replace('\\', "\\\\");
+    quotedString.replace('\'', "\\'");
+    return "'" + quotedString + "'";
+}
+
+FontFamilyValue::FontFamilyValue(const String& familyName)
+    : CSSPrimitiveValue(String(), CSS_STRING)
+    , m_familyName(familyName)
+{
+    // If there is anything in parentheses or square brackets at the end, delete it.
+    // FIXME: Do we really need this? The original code mentioned "a language tag in
+    // braces at the end" and "[Xft] qualifiers", but it's not clear either of those
+    // is in active use on the web.
+    unsigned length = m_familyName.length();
+    while (length >= 3) {
+        UChar startCharacter = 0;
+        switch (m_familyName[length - 1]) {
+            case ']':
+                startCharacter = '[';
+                break;
+            case ')':
+                startCharacter = '(';
+                break;
+        }
+        if (!startCharacter)
+            break;
+        unsigned first = 0;
+        for (unsigned i = length - 2; i > 0; --i) {
+            if (m_familyName[i - 1] == ' ' && m_familyName[i] == startCharacter)
+                first = i - 1;
+        }
+        if (!first)
+            break;
+        length = first;
+    }
+    m_familyName.truncate(length);
+}
+
+void FontFamilyValue::appendSpaceSeparated(const UChar* characters, unsigned length)
+{
+    m_familyName.append(' ');
+    m_familyName.append(characters, length);
+}
+
+String FontFamilyValue::cssText() const
+{
+    return quoteStringIfNeeded(m_familyName);
+}
+
+}