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#ifndef __NS_SVGTRANSFORMLISTPARSER_H__
#define __NS_SVGTRANSFORMLISTPARSER_H__

#include "nsSVGDataParser.h"
#include "nsCOMPtr.h"
#include "nsCOMArray.h"
#include "nsIDOMSVGTransformList.h"
#include "nsIAtom.h"

////////////////////////////////////////////////////////////////////////
// nsSVGTransformListParser: taken from nsSVGPathDataParser, a simple
//  recursive descent parser that builds the transform lists from the
//  transform attributes. The grammar for path data
// can be found in SVG 1.1,  chapter 7.
// http://www.w3.org/TR/SVG11/coords.html#TransformAttribute

class nsSVGTransformListParser : public nsSVGDataParser
{
public:
  nsSVGTransformListParser(nsCOMArray<nsIDOMSVGTransform>* aTransforms);

private:
  nsCOMArray<nsIDOMSVGTransform> *mTransform;

  // helpers
  nsresult Match();

  nsresult MatchNumberArguments(float *aResult,
                                PRUint32 aMaxNum,
                                PRUint32 *aParsedNum);
  nsIDOMSVGTransform *AppendTransform();

  nsresult MatchTransformList();

  nsresult GetTransformToken(nsIAtom** aKeyatom, PRBool aAdvancePos);
  nsresult MatchTransforms();

  nsresult MatchTransform();

  PRBool IsTokenTransformStarter();

  nsresult MatchTranslate();

  nsresult MatchScale();
  nsresult MatchRotate();
  nsresult MatchSkewX();
  nsresult MatchSkewY();
  nsresult MatchMatrix();
};

#endif // __NS_SVGTRANSFORMLISTPARSER_H__
