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/* -*- C++ -*- */
// $Id$
// ============================================================================
//
// = LIBRARY
// gateway
//
// = FILENAME
// File_Parser.h
//
// = AUTHOR
// Doug Schmidt
//
// ============================================================================
#ifndef _FILE_PARSER
#define _FILE_PARSER
#include "ace/OS.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
class FP
{
// = TITLE
// This class serves as a namespace for the <Return_Type>.
public:
enum Return_Type
{
EOLINE,
EOFILE,
SUCCESS,
COMMENT,
DEFAULT,
PARSE_ERROR
};
};
template <class ENTRY>
class File_Parser
{
// = TITLE
// Class used to parse the configuration file for the
// <Consumer_Map>.
public:
// = Open and Close the file specified
int open (const char filename[]);
int close (void);
virtual FP::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:
FP::Return_Type getword (char buf[]);
// Read the next ASCII word.
FP::Return_Type getint (ACE_INT32 &value);
// Read the next integer.
FP::Return_Type readword (char buf[]);
// 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>...
int delimiter (char ch);
// Returns true if <ch> is a delimiter, i.e., ' ', ',', or '\t'.
int comments (char ch);
// Returns true if <ch> is the comment character, i.e., '#'.
int skipline (void);
// Skips to the remainder of a line, e.g., when we find a comment
// character.
FILE *infile_;
// Pointer to the file we're reading.
};
#if defined (ACE_TEMPLATES_REQUIRE_SOURCE)
#include "File_Parser.cpp"
#endif /* ACE_TEMPLATES_REQUIRE_SOURCE */
#if defined (ACE_TEMPLATES_REQUIRE_PRAGMA)
#pragma implementation ("File_Parser.cpp")
#endif /* ACE_TEMPLATES_REQUIRE_PRAGMA */
#endif /* _FILE_PARSER */
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