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-rw-r--r--ACE/ACEXML/common/ZipCharStream.h144
1 files changed, 144 insertions, 0 deletions
diff --git a/ACE/ACEXML/common/ZipCharStream.h b/ACE/ACEXML/common/ZipCharStream.h
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+// -*- C++ -*-
+
+//=============================================================================
+/**
+ * @file ZipCharStream.h
+ *
+ * $Id$
+ *
+ * @author Krishnakumar B <kitty@cs.wustl.edu>
+ */
+//=============================================================================
+
+#ifndef _ACEXML_ZIPCHARSTREAM_H_
+#define _ACEXML_ZIPCHARSTREAM_H_
+
+#ifdef USE_ZZIP
+
+#include /**/ "ace/pre.h"
+#include "ACEXML/common/ACEXML_Export.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+#pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+#include "ACEXML/common/CharStream.h"
+#include "ACEXML/common/Encoding.h"
+#include "zzip/zzip.h"
+
+// Ugly wart to get aroung a macro version of read defined in zzip.h. Evil...
+#ifdef read
+#undef read
+#endif
+
+/**
+ * @class ACEXML_ZipCharStream
+ *
+ * An implementation of ACEXML_CharStream for reading input from a ZIP archive.
+ */
+class ACEXML_Export ACEXML_ZipCharStream : public ACEXML_CharStream
+{
+public:
+ /// Default constructor.
+ ACEXML_ZipCharStream (void);
+
+ /// Destructor
+ virtual ~ACEXML_ZipCharStream (void);
+
+ /// Open a file.
+ int open (const ACEXML_Char *name);
+
+ /**
+ * Returns the available ACEXML_Char in the buffer. -1
+ * if the object is not initialized properly.
+ */
+ virtual int available (void);
+
+ /**
+ * Close this stream and release all resources used by it.
+ */
+ virtual int close (void);
+
+ /**
+ * Read the next ACEXML_Char. Return -1 if we are not able to
+ * return an ACEXML_Char, 0 if EOF is reached, or 1 if succeed.
+ */
+ virtual int get (ACEXML_Char& ch);
+
+ /**
+ * Read the next batch of ACEXML_Char strings
+ */
+ virtual int read (ACEXML_Char *str, size_t len);
+
+ /**
+ * Determine the encoding of the file.
+ */
+ virtual int determine_encoding (void);
+
+
+ /**
+ * Peek the next ACEXML_Char in the CharStream. Return the
+ * character if success, -1 if EOF is reached.
+ */
+ virtual int peek (void);
+
+ /**
+ * Resets the file pointer to the beginning of the stream.
+ */
+ virtual void rewind (void);
+
+ /*
+ * Get the character encoding for a byte stream or URI.
+ */
+ virtual const ACEXML_Char *getEncoding (void);
+
+ /*
+ * Get the systemId for the underlying CharStream
+ */
+ virtual const ACEXML_Char* getSystemId (void);
+
+protected:
+
+ /** Read the next character as a normal character. Return -1 if EOF is
+ * reached, else return 0.
+ */
+ virtual int getchar_i (char& ch);
+
+ /**
+ * Peek @c offset bytes into the stream and return the character at @c
+ * offset. If EOF is reached, return -1.
+ */
+ virtual int peekchar_i (ACE_OFF_T offset = 0);
+
+private:
+
+#if defined (ACE_USES_WCHAR)
+ /**
+ * Read the next character from the stream taking into account the
+ * encoding of the file.
+ */
+ int get_i (ACEXML_Char& ch);
+
+ /**
+ * Return the next character from the stream taking into account the
+ * encoding of the file. Subsequent call to get() returns this
+ * character.
+ */
+ int peek_i (void);
+
+#endif /* ACE_USES_WCHAR */
+
+ ACEXML_Char* filename_;
+ ACEXML_Char* encoding_;
+ ACE_OFF_T size_;
+ ZZIP_FILE* infile_;
+ char buf_[80];
+ int pos_;
+ int limit_;
+};
+
+#include /**/ "ace/post.h"
+
+#endif /* USE_ZZIP */
+
+#endif /* _ACEXML_ZIPCHARSTREAM_H_ */