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-rw-r--r--tnet_io/KaldiLib/StkStream.h526
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diff --git a/tnet_io/KaldiLib/StkStream.h b/tnet_io/KaldiLib/StkStream.h
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-
-
-/** @file stkstream.h
- * This is an TNet C++ Library header.
- */
-
-
-#ifndef TNet_StkStream_h
-#define TNet_StkStream_h
-
-#include <fstream>
-#include <string>
-#include <vector>
-#include <list>
-#include <stdexcept>
-
-#pragma GCC system_header
-
-
-//extern const char * gpFilterWldcrd;
-
-namespace TNet
-{
-
- /**
- * @brief Expands a filter command into a runnable form
- *
- * This function replaces all occurances of *filter_wldcard in *command by
- * *filename
- */
- //char * ExpandFilterCommand(const char *command, const char *filename);
-
- /**
- * @brief Provides a layer of compatibility for C/POSIX.
- *
- * This GNU extension provides extensions for working with standard C
- * FILE*'s and POSIX file descriptors. It must be instantiated by the
- * user with the type of character used in the file stream, e.g.,
- * basic_stkbuf<char>.
- */
- template<
- typename _CharT,
- typename _Traits = std::char_traits<_CharT>
- >
- class basic_stkbuf : public std::basic_filebuf<_CharT, _Traits>
- {
- public:
-
- typedef basic_stkbuf<_CharT, _Traits> this_type;
-
- // Types:
- typedef _CharT char_type;
- typedef _Traits traits_type;
-
- typedef typename traits_type::int_type int_type;
- typedef typename traits_type::pos_type pos_type;
- typedef typename traits_type::off_type off_type;
- typedef std::size_t size_t;
-
- public:
-
- /// @{
- /// Type of streambuffer
- static const unsigned int t_undef = 0; ///< undefined
- static const unsigned int t_file = 1; ///< file stream
- static const unsigned int t_pipe = 2; ///< pipe
- static const unsigned int t_filter = 4; ///< filter
- static const unsigned int t_stdio = 8; ///< standard input/output
- /// @}
-
- public:
-
- /**
- * deferred initialization
- */
- basic_stkbuf() : std::basic_filebuf<_CharT, _Traits>(),
- mFilename(""), mpFilePtr(0), mStreamType(t_undef){}
-
- /**
- * @brief Opens a stream.
- * @param fName The name of the file.
- * @param m The open mode flags.
- * @param pFilter The pFilter command to use
- * @return @c this on success, NULL on failure
- *
- * If a file is already open, this function immediately fails.
- * Otherwise it tries to open the file named @a s using the flags
- * given in @a mode.
- *
- * [Table 92 gives the relation between openmode combinations and the
- * equivalent fopen() flags, but the table has not been copied yet.]
- */
- basic_stkbuf(const char* fName, std::ios_base::openmode m, const char* pFilter="");
-
-
- /**
- * @return The underlying FILE*.
- *
- * This function can be used to access the underlying "C" file pointer.
- * Note that there is no way for the library to track what you do
- * with the file, so be careful.
- */
- std::__c_file*
- file() { return this->_M_file.file(); }
-
-
- /**
- * @return The underlying FILE*.
- *
- * This function can be used to access the underlying "C" file pointer.
- * Note that there is no way for the library to track what you do
- * with the file, so be careful.
- */
- std::__c_file*
- fp() { return this->_M_file.file(); }
-
-
- /**
- * @brief Opens an external file.
- * @param fName The name of the file.
- * @param m The open mode flags.
- * @param pFilter The pFilter command to use
- * @return @c this on success, NULL on failure
- *
- * If a file is already open, this function immediately fails.
- * Otherwise it tries to open the file named @a s using the flags
- * given in @a mode.
- *
- * [Table 92 gives the relation between openmode combinations and the
- * equivalent fopen() flags, but the table has not been copied yet.]
- */
- this_type*
- open(const char* pFName, std::ios_base::openmode m, const char* pFilter="");
-
- /**
- * @brief Closes the currently associated file.
- * @return @c this on success, NULL on failure
- *
- * If no file is currently open, this function immediately fails.
- *
- * If a "put buffer area" exists, @c overflow(eof) is called to flush
- * all the characters. The file is then closed.
- *
- * If any operations fail, this function also fails.
- */
- this_type*
- close();
-
- /**
- * Closes the external data stream if the file descriptor constructor
- * was used.
- */
- virtual
- ~basic_stkbuf()
- {close();};
-
- /// Returns the file name
- const std::string
- name() const
- {return mFilename;}
-
-
- private:
- /// converts the ios::xxx mode to stdio style
- static void open_mode(std::ios_base::openmode __mode, int&, int&, char* __c_mode);
-
- /**
- * @param __f An open @c FILE*.
- * @param __mode Same meaning as in a standard filebuf.
- * @param __size Optimal or preferred size of internal buffer, in chars.
- * Defaults to system's @c BUFSIZ.
- *
- * This method associates a file stream buffer with an open
- * C @c FILE*. The @c FILE* will not be automatically closed when the
- * basic_stkbuf is closed/destroyed. It is equivalent to one of the constructors
- * of the stdio_filebuf class defined in GNU ISO C++ ext/stdio_filebuf.h
- */
- void superopen(std::__c_file* __f, std::ios_base::openmode __mode,
- size_t __size = static_cast<size_t>(BUFSIZ));
-
-
- private:
- /// Holds the full file name
- std::string mFilename;
-
- std::ios_base::openmode mMode;
-
- /// Holds a pointer to the main FILE structure
- FILE * mpFilePtr;
-
- /// tells what kind of stream we use (stdio, file, pipe)
- unsigned int mStreamType;
-
- };
-
-
-
- /**
- * @brief This extension wraps stkbuf stream buffer into the standard ios class.
- *
- * This class is inherited by (i/o)stkstream classes which make explicit use of
- * the custom stream buffer
- */
- template<
- typename _CharT,
- typename _Traits = std::char_traits<_CharT>
- >
- class BasicStkIos
- : virtual public std::basic_ios<_CharT, _Traits>
- {
- public:
- typedef basic_stkbuf <_CharT,_Traits> StkBufType;
-
- BasicStkIos()
- : mBuf()
- { this->init(&mBuf) ;};
-
- BasicStkIos(const char* fName, std::ios::openmode m, const char* pFilter)
- : mBuf(fName, m, pFilter)
- { this->init(&mBuf) ; }
-
- StkBufType*
- rdbuf()
- { return &mBuf; }
-
- protected:
- StkBufType mBuf;
- };
-
-
- /**
- * @brief Controlling input for files.
- *
- * This class supports reading from named files, using the inherited
- * functions from std::istream. To control the associated
- * sequence, an instance of std::stkbuf is used.
- */
- template<
- typename _CharT,
- typename _Traits = std::char_traits<_CharT>
- >
- class BasicIStkStream
- : public BasicStkIos<_CharT, _Traits>,
- public std::basic_istream<_CharT, _Traits>
- {
- public:
- typedef BasicStkIos<_CharT, _Traits> BasicStkIosType;
- typedef std::basic_istream<_CharT,_Traits> IStreamType;
-
-
- // Constructors:
- /**
- * @brief Default constructor.
- *
- * Initializes @c mBuf using its default constructor, and passes
- * @c &sb to the base class initializer. Does not open any files
- * (you haven't given it a filename to open).
- */
- BasicIStkStream()
- : BasicStkIosType(),
- IStreamType(BasicStkIosType::rdbuf())
- {};
-
- /**
- * @brief Create an input file stream.
- * @param fName String specifying the filename.
- * @param m Open file in specified mode (see std::ios_base).
- * @param pFilter String specifying pFilter command to use on fName
- *
- * @c ios_base::in is automatically included in
- * @a m.
- *
- * Tip: When using std::string to hold the filename, you must use
- * .c_str() before passing it to this constructor.
- */
- BasicIStkStream(const char* pFName, std::ios::openmode m=std::ios::out, const char* pFilter="")
- : BasicStkIosType(),
- IStreamType(BasicStkIosType::rdbuf())
- {this->open(pFName, std::ios::in, pFilter);}
-
- ~BasicIStkStream()
- {
- this->close();
- }
-
- /**
- * @brief Opens an external file.
- * @param s The name of the file.
- * @param mode The open mode flags.
- * @param pFilter The pFilter command to use
- *
- * Calls @c std::basic_filebuf::open(s,mode|in). If that function
- * fails, @c failbit is set in the stream's error state.
- *
- * Tip: When using std::string to hold the filename, you must use
- * .c_str() before passing it to this constructor.
- */
- void open(const char* pFName, std::ios::openmode m=std::ios::in, const char* pFilter = "")
- {
- if (!BasicStkIosType::mBuf.open(pFName, m | std::ios_base::in, pFilter)) {
- this->setstate(std::ios_base::failbit);
- }
- else {
- // Closing an fstream should clear error state
- BasicStkIosType::clear();
- }
- }
-
- /**
- * @brief Returns true if the external file is open.
- */
- bool is_open() const {return BasicStkIosType::mBuf.is_open();}
-
-
- /**
- * @brief Closes the stream
- */
- void close() {BasicStkIosType::mBuf.close();}
-
- /**
- * @brief Returns the filename
- */
- const std::string name() const {return BasicStkIosType::mBuf.name();}
-
- /// Returns a pointer to the main FILE structure
- std::__c_file*
- file() {return BasicStkIosType::mBuf.file();}
-
- /// Returns a pointer to the main FILE structure
- std::__c_file*
- fp() {return BasicStkIosType::mBuf.fp();}
-
- // /**
- // * @brief Reads a single line
- // *
- // * This is a specialized function as std::getline does not provide a way to
- // * read multiple end-of-line symbols (we need both '\n' and EOF to delimit
- // * the line)
- // */
- // void
- // GetLine(string& rLine);
-
- }; // class BasicIStkStream
-
-
- /**
- * @brief Controlling output for files.
- *
- * This class supports reading from named files, using the inherited
- * functions from std::ostream. To control the associated
- * sequence, an instance of TNet::stkbuf is used.
- */
- template<
- typename _CharT,
- typename _Traits = std::char_traits<_CharT>
- >
- class BasicOStkStream
- : public BasicStkIos<_CharT, _Traits>,
- public std::basic_ostream<_CharT, _Traits>
- {
- public:
- typedef BasicStkIos<_CharT, _Traits> BasicStkIosType;
- typedef std::basic_ostream<_CharT,_Traits> OStreamType;
-
- // Constructors:
- /**
- * @brief Default constructor.
- *
- * Initializes @c sb using its default constructor, and passes
- * @c &sb to the base class initializer. Does not open any files
- * (you haven't given it a filename to open).
- */
- BasicOStkStream()
- : BasicStkIosType(),
- OStreamType(BasicStkIosType::rdbuf())
- {};
-
- /**
- * @brief Create an output file stream.
- * @param fName String specifying the filename.
- * @param m Open file in specified mode (see std::ios_base).
- * @param pFilter String specifying pFilter command to use on fName
- *
- * @c ios_base::out|ios_base::trunc is automatically included in
- * @a mode.
- *
- * Tip: When using std::string to hold the filename, you must use
- * .c_str() before passing it to this constructor.
- */
- BasicOStkStream(const char* pFName, std::ios::openmode m=std::ios::out, const char* pFilter="")
- : BasicStkIosType(),
- OStreamType(BasicStkIosType::rdbuf())
- {this->open(pFName, std::ios::out, pFilter);}
-
- /**
- * @brief Opens an external file.
- * @param fName The name of the file.
- * @param m The open mode flags.
- * @param pFilter String specifying pFilter command to use on fName
- *
- * Calls @c std::basic_filebuf::open(s,mode|out). If that function
- * fails, @c failbit is set in the stream's error state.
- *
- * Tip: When using std::string to hold the filename, you must use
- * .c_str() before passing it to this constructor.
- */
- void open(const char* pFName, std::ios::openmode m=std::ios::out, const char* pFilter="")
- {
- if (!BasicStkIosType::mBuf.open(pFName, m | std::ios_base::out, pFilter))
- this->setstate(std::ios_base::failbit);
- else
- // Closing an fstream should clear error state
- this->clear();
- }
-
- /**
- * @brief Returns true if the external file is open.
- */
- bool is_open() const
- { return BasicStkIosType::mBuf.is_open();}
-
- /**
- * @brief Closes the stream
- */
- void close()
- { BasicStkIosType::mBuf.close();}
-
- /**
- * @brief Returns the filename
- */
- const std::string name() const
- { return BasicStkIosType::mBuf.name();}
-
- /// Returns a pointer to the main FILE structure
- std::__c_file*
- file()
- { return BasicStkIosType::mBuf.file();}
-
- /// Returns a pointer to the main FILE structure
- std::__c_file*
- fp()
- { return BasicStkIosType::mBuf.fp();}
-
- }; // class BasicOStkStream
-
-
- /**
- * We define some implicit stkbuf class
- */
- ///@{
-#ifndef _GLIBCPP_USE_WCHAR_T
- typedef BasicOStkStream<char> OStkStream;
- typedef BasicOStkStream<wchar_t> WOStkStream;
- typedef BasicIStkStream<char> IStkStream;
- typedef BasicIStkStream<wchar_t> WIStkStream;
-#else
- typedef BasicOStkStream<char> WOStkStream;
- typedef BasicOStkStream<wchar_t> WOStkStream;
- typedef BasicIStkStream<char> WIStkStream;
- typedef BasicIStkStream<wchar_t> WIStkStream;
-#endif
- /// @}
-
- /*
- template<class T,class char_type> inline
- BasicOStkStream<char_type>& operator << (BasicOStkStream<char_type> &ostream, const std::vector<T> &vec){
- ostream << vec.size() << std::endl;
- for(size_t i=0;i<vec.size();i++) ostream << vec[i];
- return ostream;
- }
-
- template<class T,class char_type> inline BasicIStkStream<char_type> &operator >> (BasicIStkStream<char_type> &istream, std::vector<T> &vec){
- size_t sz;
- istream >> sz; if(!istream.good()){ throw std::runtime_error(std::string("Error reading to vector of [something]: stream bad\n")); }
- int ch = istream.get(); if(ch!='\n' || !istream.good()){ throw std::runtime_error(std::string("Expecting newline after vector size, got " + (std::string)(char)ch));} // TODO: This code may not be right for wchar.
- vec.resize(sz);
- for(size_t i=0;i<vec.size();i++) istream >> vec[i];
- return istream;
- }*/
-
- template<class T> inline
- std::ostream & operator << (std::ostream &ostream, const std::vector<T> &vec){
- ostream << vec.size() << std::endl;
- for(size_t i=0;i<vec.size();i++) ostream << vec[i] << "\n"; // '\n' is necessary in case item is atomic e.g. a number.
- return ostream;
- }
-
- template<class T> inline std::istream& operator >> (std::istream &istream, std::vector<T> &vec){
- size_t sz;
- istream >> sz; if(!istream.good()){ throw std::runtime_error(std::string("Error reading to vector of [something]: stream bad\n")); }
- // int ch = istream.get(); if(ch!='\n' || !istream.good()){ throw std::runtime_error(std::string("Expecting newline after vector size\n")); // TODO: This code may not be right for wchar.
- vec.resize(sz);
- for(size_t i=0;i<vec.size();i++) istream >> vec[i];
- return istream;
- }
-
- template<class T> inline
- std::ostream & operator << (std::ostream &ostream, const std::list<T> &lst){
- ostream << lst.size() << std::endl;
- typename std::list<T>::iterator it;
- for(it = lst.begin(); it != lst.end(); it++)
- ostream << *it << "\n"; // '\n' is necessary in case item is atomic e.g. a number.
- return ostream;
- }
-
- template<class T> inline std::istream& operator >> (std::istream &istream, std::list<T> &lst){
- size_t sz;
- istream >> sz; if(!istream.good()){ throw std::runtime_error(std::string("Error reading to list of [something]: stream bad\n")); }
- lst.resize(sz);
- typename std::list<T>::iterator it;
- for(it = lst.begin(); it != lst.end(); it++)
- istream >> *it;
- return istream;
- }
-
-}; // namespace TNet
-
-
-using TNet::operator >>;
-using TNet::operator <<;
-
-
-# include "StkStream.tcc"
-
-// TNet_StkStream_h
-#endif
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