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Diffstat (limited to 'ACE/ACEXML/common/ZipCharStream.h')
-rw-r--r-- | ACE/ACEXML/common/ZipCharStream.h | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/ACE/ACEXML/common/ZipCharStream.h b/ACE/ACEXML/common/ZipCharStream.h new file mode 100644 index 00000000000..2c3ee5fb775 --- /dev/null +++ b/ACE/ACEXML/common/ZipCharStream.h @@ -0,0 +1,144 @@ +// -*- 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 (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_; + off_t size_; + ZZIP_FILE* infile_; + char buf_[80]; + int pos_; + int limit_; +}; + +#include /**/ "ace/post.h" + +#endif /* USE_ZZIP */ + +#endif /* _ACEXML_ZIPCHARSTREAM_H_ */ |