1 files changed, 131 insertions, 0 deletions
diff --git a/parser/htmlparser/nsExpatDriver.h b/parser/htmlparser/nsExpatDriver.h
new file mode 100644
index 0000000000..bd0e34abe8
--- /dev/null
+++ b/parser/htmlparser/nsExpatDriver.h
@@ -0,0 +1,131 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef NS_EXPAT_DRIVER__
+#define NS_EXPAT_DRIVER__
+
+#include "expat_config.h"
+#include "expat.h"
+#include "nsCOMPtr.h"
+#include "nsString.h"
+#include "nsIDTD.h"
+#include "nsITokenizer.h"
+#include "nsIInputStream.h"
+#include "nsIParser.h"
+#include "nsCycleCollectionParticipant.h"
+
+class nsIExpatSink;
+struct nsCatalogData;
+
+class nsExpatDriver : public nsIDTD, public nsITokenizer {
+  virtual ~nsExpatDriver();
+
+ public:
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_NSIDTD
+  NS_DECL_NSITOKENIZER
+  NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsExpatDriver, nsIDTD)
+
+  nsExpatDriver();
+
+  int HandleExternalEntityRef(const char16_t* aOpenEntityNames,
+                              const char16_t* aBase, const char16_t* aSystemId,
+                              const char16_t* aPublicId);
+  static void HandleStartElement(void* aUserData, const char16_t* aName,
+                                 const char16_t** aAtts);
+  static void HandleStartElementForSystemPrincipal(void* aUserData,
+                                                   const char16_t* aName,
+                                                   const char16_t** aAtts);
+  static void HandleEndElement(void* aUserData, const char16_t* aName);
+  static void HandleEndElementForSystemPrincipal(void* aUserData,
+                                                 const char16_t* aName);
+  nsresult HandleCharacterData(const char16_t* aCData, const uint32_t aLength);
+  nsresult HandleComment(const char16_t* aName);
+  nsresult HandleProcessingInstruction(const char16_t* aTarget,
+                                       const char16_t* aData);
+  nsresult HandleXMLDeclaration(const char16_t* aVersion,
+                                const char16_t* aEncoding, int32_t aStandalone);
+  nsresult HandleDefault(const char16_t* aData, const uint32_t aLength);
+  nsresult HandleStartCdataSection();
+  nsresult HandleEndCdataSection();
+  nsresult HandleStartDoctypeDecl(const char16_t* aDoctypeName,
+                                  const char16_t* aSysid,
+                                  const char16_t* aPubid,
+                                  bool aHasInternalSubset);
+  nsresult HandleEndDoctypeDecl();
+
+ private:
+  // Load up an external stream to get external entity information
+  nsresult OpenInputStreamFromExternalDTD(const char16_t* aFPIStr,
+                                          const char16_t* aURLStr,
+                                          const char16_t* aBaseURL,
+                                          nsIInputStream** aStream,
+                                          nsAString& aAbsURL);
+
+  /**
+   * Pass a buffer to Expat. If Expat is blocked aBuffer should be null and
+   * aLength should be 0. The result of the call will be stored in
+   * mInternalState. Expat will parse as much of the buffer as it can and store
+   * the rest in its internal buffer.
+   *
+   * @param aBuffer the buffer to pass to Expat. May be null.
+   * @param aLength the length of the buffer to pass to Expat (in number of
+   *                char16_t's). Must be 0 if aBuffer is null and > 0 if
+   *                aBuffer is not null.
+   * @param aIsFinal whether there will definitely not be any more new buffers
+   *                 passed in to ParseBuffer
+   * @param aConsumed [out] the number of PRUnichars that Expat consumed. This
+   *                        doesn't include the PRUnichars that Expat stored in
+   *                        its buffer but didn't parse yet.
+   */
+  void ParseBuffer(const char16_t* aBuffer, uint32_t aLength, bool aIsFinal,
+                   uint32_t* aConsumed);
+  nsresult HandleError();
+
+  void MaybeStopParser(nsresult aState);
+
+  bool BlockedOrInterrupted() {
+    return mInternalState == NS_ERROR_HTMLPARSER_BLOCK ||
+           mInternalState == NS_ERROR_HTMLPARSER_INTERRUPTED;
+  }
+
+  XML_Parser mExpatParser;
+  nsString mLastLine;
+  nsString mCDataText;
+  // Various parts of a doctype
+  nsString mDoctypeName;
+  nsString mSystemID;
+  nsString mPublicID;
+  nsString mInternalSubset;
+  bool mInCData;
+  bool mInInternalSubset;
+  bool mInExternalDTD;
+  bool mMadeFinalCallToExpat;
+
+  // Whether we're sure that we won't be getting more buffers to parse from
+  // Necko
+  bool mIsFinalChunk;
+
+  nsresult mInternalState;
+
+  // The length of the data in Expat's buffer (in number of PRUnichars).
+  uint32_t mExpatBuffered;
+
+  uint16_t mTagDepth;
+
+  // These sinks all refer the same conceptual object. mOriginalSink is
+  // identical with the nsIContentSink* passed to WillBuildModel, and exists
+  // only to avoid QI-ing back to nsIContentSink*.
+  nsCOMPtr<nsIContentSink> mOriginalSink;
+  nsCOMPtr<nsIExpatSink> mSink;
+
+  const nsCatalogData* mCatalogData;  // weak
+  nsString mURISpec;
+
+  // Used for error reporting.
+  uint64_t mInnerWindowID;
+};
+
+#endif