reactos/modules/rosapps/applications/sysutils/utils/sdkparse/File.h

112 lines
2 KiB
C++

// File.h
// This file is (C) 2002-2003 Royce Mitchell III and released under the BSD license
#ifndef FILE_H
#define FILE_H
#ifdef WIN32
# include <io.h>
#elif defined(UNIX)
# include <sys/stat.h>
# include <unistd.h>
#endif
#include <string>
class File
{
public:
File() : _f(0)
{
}
File ( const char* filename, const char* mode ) : _f(0)
{
open ( filename, mode );
}
~File()
{
close();
}
bool open ( const char* filename, const char* mode );
bool seek ( long offset )
{
return !fseek ( _f, offset, SEEK_SET );
}
int get()
{
return fgetc ( _f );
}
bool put ( int c )
{
return fputc ( c, _f ) != EOF;
}
std::string getline ( bool strip_crlf = false );
// this function searches for the next end-of-line and puts all data it
// finds until then in the 'line' parameter.
//
// call continuously until the function returns false ( no more data )
bool next_line ( std::string& line, bool strip_crlf );
/*
example usage:
bool mycallback ( const std::string& line, int line_number, long lparam )
{
std::cout << line << std::endl;
return true; // continue enumeration
}
File f ( "file.txt", "rb" ); // open file for binary read-only ( i.e. "rb" )
f.enum_lines ( mycallback, 0, true );
*/
bool enum_lines ( bool (*callback)(const std::string& line, int line_number, long lparam), long lparam, bool strip_crlf );
bool read ( void* data, unsigned len )
{
return len == fread ( data, 1, len, _f );
}
bool write ( const void* data, unsigned len )
{
return len == fwrite ( data, 1, len, _f );
}
size_t length();
void close();
bool isopened()
{
return _f != 0;
}
bool eof()
{
return feof(_f) ? true : false;
}
FILE* operator * ()
{
return _f;
}
static bool LoadIntoString ( std::string& s, const char* filename );
static bool SaveFromString ( const char* filename, const std::string& s, bool binary );
private:
File(const File&) {}
const File& operator = ( const File& ) { return *this; }
FILE * _f;
};
#endif//FILE_H