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/* -*- C++ -*- */
//=============================================================================
/**
* @file File_Parser.h
*
* @author Doug Schmidt
*/
//=============================================================================
#ifndef _FILE_PARSER
#define _FILE_PARSER
#include "ace/Basic_Types.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
/**
* @class FPRT
*
* @brief This class serves as a namespace for the <Return_Type>.
*/
class FPRT
{
public:
enum Return_Type
{
RT_EOLINE,
RT_EOFILE,
RT_SUCCESS,
RT_COMMENT,
RT_DEFAULT,
RT_PARSE_ERROR
};
};
/**
* @class File_Parser
*
* @brief Class used to parse the configuration file for the
* <Consumer_Map>.
*/
template <class ENTRY>
class File_Parser
{
public:
/// Destructor.
virtual ~File_Parser ();
// = Open and Close the file specified
int open (const ACE_TCHAR filename[]);
int close ();
virtual FPRT::Return_Type read_entry (ENTRY &entry,
int &line_number) = 0;
// Pure virtual hook that subclasses override and use the protected
// methods to fill in the <entry>.
protected:
/// Read the next ASCII word.
FPRT::Return_Type getword (char buf[]);
/// Read the next integer.
FPRT::Return_Type getint (ACE_INT32 &value);
/**
* Read the next "word," which is demarcated by <delimiter>s.
*
* @@ This function is inherently flawed since it doesn't take a
* count of the size of <buf>...
*/
FPRT::Return_Type readword (char buf[]);
/// Returns true if <ch> is a delimiter, i.e., ' ', ',', or '\t'.
int delimiter (char ch);
/// Returns true if <ch> is the comment character, i.e., '#'.
int comments (char ch);
/// Skips to the remainder of a line, e.g., when we find a comment
/// character.
int skipline ();
/// Pointer to the file we're reading.
FILE *infile_;
};
#include "File_Parser.cpp"
#endif /* _FILE_PARSER */
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