WebCore/svg/SVGParserUtilities.h
changeset 0 4f2f89ce4247
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/svg/SVGParserUtilities.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,74 @@
+/*
+   Copyright (C) 2002, 2003 The Karbon Developers
+                 2006, 2007 Rob Buis <buis@kde.org>
+
+   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.
+*/
+
+#ifndef SVGParserUtilities_h
+#define SVGParserUtilities_h
+#if ENABLE(SVG)
+
+#include "ParserUtilities.h"
+#include <wtf/HashSet.h>
+
+typedef pair<unsigned, unsigned> UnicodeRange;
+typedef Vector<UnicodeRange> UnicodeRanges;
+
+namespace WebCore {
+
+    class SVGPointList;
+
+    bool parseNumber(const UChar*& ptr, const UChar* end, float& number, bool skip = true);
+    bool parseNumberOptionalNumber(const String& s, float& h, float& v);
+    bool parseArcFlag(const UChar*& ptr, const UChar* end, bool& flag);
+
+    // SVG allows several different whitespace characters:
+    // http://www.w3.org/TR/SVG/paths.html#PathDataBNF
+    inline bool isWhitespace(const UChar& c)
+    {
+        return (c == ' ' || c == '\t' || c == '\n' || c == '\r');
+    }
+
+    inline bool skipOptionalSpaces(const UChar*& ptr, const UChar* end)
+    {
+        while (ptr < end && isWhitespace(*ptr))
+            ptr++;
+        return ptr < end;
+    }
+
+    inline bool skipOptionalSpacesOrDelimiter(const UChar*& ptr, const UChar* end, UChar delimiter = ',')
+    {
+        if (ptr < end && !isWhitespace(*ptr) && *ptr != delimiter)
+            return false;
+        if (skipOptionalSpaces(ptr, end)) {
+            if (ptr < end && *ptr == delimiter) {
+                ptr++;
+                skipOptionalSpaces(ptr, end);
+            }
+        }
+        return ptr < end;
+    }
+
+    bool pointsListFromSVGData(SVGPointList* pointsList, const String& points);
+    Vector<String> parseDelimitedString(const String& input, const char seperator);
+    bool parseKerningUnicodeString(const String& input, UnicodeRanges&, HashSet<String>& stringList);
+    bool parseGlyphName(const String& input, HashSet<String>& values);
+
+} // namespace WebCore
+
+#endif // ENABLE(SVG)
+#endif // SVGParserUtilities_h