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ACEXML_StrCharStream Class Reference

#include <common/StrCharStream.h>

Inheritance diagram for ACEXML_StrCharStream:

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Collaboration diagram for ACEXML_StrCharStream:

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List of all members.

Public Member Functions

 ACEXML_StrCharStream (void)
 Default constructor.

virtual ~ACEXML_StrCharStream (void)
 Destructor.

int open (const ACEXML_Char *str, const ACEXML_Char *name)
 Initializing StrCharStream with str and name.

virtual int available (void)
virtual int close (void)
virtual int determine_encoding (void)
virtual int get (ACEXML_Char &ch)
virtual int read (ACEXML_Char *str, size_t len)
virtual int peek (void)
virtual const ACEXML_Char * getEncoding (void)
virtual const ACEXML_Char * getSystemId (void)
virtual void rewind (void)

Private Attributes

ACEXML_Char * start_
ACEXML_Char * ptr_
ACEXML_Char * end_
ACEXML_Char * encoding_
ACEXML_Char * name_

Detailed Description

An implementation of ACEXML_CharStream for reading input from a null-terminated ACEXML_Char string.

Definition at line 31 of file StrCharStream.h.

Constructor & Destructor Documentation

ACEXML_StrCharStream::ACEXML_StrCharStream (  void   ) 
 

Default constructor.

Definition at line 9 of file StrCharStream.cpp. 

00010   : start_ (0), ptr_ (0), end_ (0), encoding_ (0), name_ (0)
00011 {
00012 }

ACEXML_StrCharStream::~ACEXML_StrCharStream (  void   )  [virtual]
 

Destructor.

Definition at line 15 of file StrCharStream.cpp.

References close(). 

00016 {
00017   this->close();
00018 }

Member Function Documentation

int ACEXML_StrCharStream::available (  void   )  [virtual]
 

Returns the available ACEXML_Char in the buffer. -1 if the object is not initialized properly.

Implements ACEXML_CharStream.

Definition at line 40 of file StrCharStream.cpp. 

00041 {
00042   if (this->start_ != 0)
00043     return static_cast<int> (this->end_ - this->start_); // @@ Will this work on all platforms?
00044   return -1;
00045 }

int ACEXML_StrCharStream::close (  void   )  [virtual]
 

Close this stream and release all resources used by it.

Implements ACEXML_CharStream.

Definition at line 48 of file StrCharStream.cpp.

Referenced by ~ACEXML_StrCharStream(). 

00049 {
00050   delete[] this->start_;
00051   delete[] this->encoding_;
00052   this->encoding_ = 0;
00053   delete[] this->name_;
00054   this->name_ = 0;
00055   this->start_ = this->ptr_ = this->end_ = 0;
00056   return 0;
00057 }

int ACEXML_StrCharStream::determine_encoding (  void   )  [virtual]
 

Determine the encoding of the file.

Definition at line 60 of file StrCharStream.cpp.

References ACEXML_Char, ACEXML_Encoding::get_encoding(), and ACE::strnew().

Referenced by open(), and rewind(). 

00061 {
00062   if (this->start_ == 0)
00063     return -1;
00064   char input[4] = {0,0,0,0};
00065   char* sptr  = (char*)this->start_;
00066   int i = 0;
00067   for ( ; i < 4 && sptr != (char*)this->end_; ++sptr, ++i)
00068     input[i] = *sptr;
00069   const ACEXML_Char* temp = ACEXML_Encoding::get_encoding (input);
00070   if (!temp)
00071     return -1;
00072   else
00073     {
00074       delete [] this->encoding_;
00075       this->encoding_ = ACE::strnew (temp);
00076       // ACE_DEBUG ((LM_DEBUG, "String's encoding is %s\n", this->encoding_));
00077     }
00078   return 0;
00079 }

int ACEXML_StrCharStream::get (  ACEXML_Char &  ch  )  [virtual]
 

Read the next ACEXML_Char. Return -1 if we are not able to return an ACEXML_Char, 0 if EOS is reached, or 1 if succeed.

Implements ACEXML_CharStream.

Definition at line 89 of file StrCharStream.cpp.

References ACEXML_Char. 

00090 {
00091   if (this->start_ != 0 && this->ptr_ != this->end_)
00092     {
00093       ch = *this->ptr_++;
00094       return 0;
00095     }
00096   return -1;
00097 }

const ACEXML_Char * ACEXML_StrCharStream::getEncoding (  void   )  [virtual]
 

Implements ACEXML_CharStream.

Definition at line 123 of file StrCharStream.cpp. 

00124 {
00125   return this->encoding_;
00126 }

const ACEXML_Char * ACEXML_StrCharStream::getSystemId (  void   )  [virtual]
 

Implements ACEXML_CharStream.

Definition at line 129 of file StrCharStream.cpp. 

00130 {
00131   return this->name_;
00132 }

int ACEXML_StrCharStream::open (  const ACEXML_Char *  str,
const ACEXML_Char *  name
) 
 

Initializing StrCharStream with str and name.

Definition at line 21 of file StrCharStream.cpp.

References ACEXML_Char, determine_encoding(), ACE_OS::strlen(), and ACE::strnew().

Referenced by ACEXML_Parser::parse_entity_reference(), and ACEXML_Parser::parse_PE_reference(). 

00022 {
00023 
00024   if (str != 0 && name != 0)
00025     {
00026       delete [] this->start_;
00027       if ((this->start_ = ACE::strnew (str)) == 0)
00028         return -1;
00029       delete [] this->name_;
00030       if ((this->name_ = ACE::strnew (name)) == 0)
00031         return -1;
00032       this->ptr_ = this->start_;
00033       this->end_ = this->start_ + ACE_OS::strlen (this->start_);
00034       return this->determine_encoding();
00035     }
00036   return -1;                // Invalid string passed.
00037 }

int ACEXML_StrCharStream::peek (  void   )  [virtual]
 

Peek the next ACEXML_Char in the CharStream. Return the character if succeess, -1 if EOS is reached.

Implements ACEXML_CharStream.

Definition at line 115 of file StrCharStream.cpp. 

00116 {
00117   if (this->start_ != 0 && this->ptr_ != this->end_)
00118     return *this->ptr_;
00119   return -1;
00120 }

int ACEXML_StrCharStream::read (  ACEXML_Char *  str,
size_t  len
)  [virtual]
 

Read the next batch of ACEXML_Char strings

Implements ACEXML_CharStream.

Definition at line 100 of file StrCharStream.cpp.

References ACEXML_Char, and ACE_OS::strncpy(). 

00101 {
00102   if (this->start_ != 0 &&
00103       this->ptr_ != this->end_)
00104     {
00105       if (len * sizeof (ACEXML_Char) > (size_t) (this->end_ - this->ptr_))
00106         len = this->end_ - this->ptr_;
00107       ACE_OS::strncpy (str, this->ptr_, len);
00108       this->ptr_ += len;
00109       return static_cast<int> (len);
00110     }
00111   return 0;
00112 }

void ACEXML_StrCharStream::rewind (  void   )  [virtual]
 

Resets the pointer to the beginning of the stream.

Implements ACEXML_CharStream.

Definition at line 82 of file StrCharStream.cpp.

References determine_encoding(). 

00083 {
00084   this->ptr_ = this->start_;
00085   this->determine_encoding();
00086 }

Member Data Documentation

ACEXML_Char* ACEXML_StrCharStream::encoding_ [private]
 

Definition at line 95 of file StrCharStream.h.

ACEXML_Char* ACEXML_StrCharStream::end_ [private]
 

Definition at line 94 of file StrCharStream.h.

ACEXML_Char* ACEXML_StrCharStream::name_ [private]
 

Definition at line 96 of file StrCharStream.h.

ACEXML_Char* ACEXML_StrCharStream::ptr_ [private]
 

Definition at line 93 of file StrCharStream.h.

ACEXML_Char* ACEXML_StrCharStream::start_ [private]
 

Definition at line 92 of file StrCharStream.h.

The documentation for this class was generated from the following files:
Generated on Sun Jan 27 13:05:08 2008 for ACEXML by doxygen 1.3.6