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// $Id$
#ifndef FILE_PARSER_C
#define FILE_PARSER_C
#include "ace/OS_NS_stdio.h"
#include "ace/OS_NS_stdlib.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "File_Parser.h"
ACE_RCSID(Gateway, File_Parser, "$Id$")
// This fixes a nasty bug with cfront-based compilers (like
// Centerline).
typedef FP::Return_Type FP_RETURN_TYPE;
// File_Parser stuff.
template <class ENTRY> int
File_Parser<ENTRY>::open (const ACE_TCHAR filename[])
{
this->infile_ = ACE_OS::fopen (filename, ACE_TEXT ("r"));
if (this->infile_ == 0)
return -1;
else
return 0;
}
template <class ENTRY> int
File_Parser<ENTRY>::close (void)
{
return ACE_OS::fclose (this->infile_);
}
template <class ENTRY> FP_RETURN_TYPE
File_Parser<ENTRY>::getword (char buf[])
{
return this->readword (buf);
}
// Get the next string from the file via this->readword()
// Check make sure the string forms a valid number.
template <class ENTRY> FP_RETURN_TYPE
File_Parser<ENTRY>::getint (ACE_INT32 &value)
{
char buf[BUFSIZ];
#if defined (__GNUG__)
// egcs 1.1b can't handle the typedef.
FP::Return_Type
#else /* ! __GNUG__ */
FP_RETURN_TYPE
#endif /* ! __GNUG__ */
read_result = this->readword (buf);
if (read_result == FP::RT_SUCCESS)
{
// Check to see if this is the "use the default value" symbol?
if (buf[0] == '*')
return FP::RT_DEFAULT;
else
{
// ptr is used for error checking with ACE_OS::strtol.
char *ptr;
// try to convert the buf to a decimal number
value = ACE_OS::strtol (buf, &ptr, 10);
// check if the buf is a decimal or not
if (value == 0 && ptr == buf)
return FP::RT_PARSE_ERROR;
else
return FP::RT_SUCCESS;
}
}
else
return read_result;
}
template <class ENTRY> FP_RETURN_TYPE
File_Parser<ENTRY>::readword (char buf[])
{
int wordlength = 0;
int c;
// Skip over leading delimiters and get word.
while ((c = getc (this->infile_)) != EOF && c != '\n')
if (this->delimiter (c))
{
// We've reached the end of a "word".
if (wordlength > 0)
break;
}
else
buf[wordlength++] = c;
buf[wordlength] = '\0';
if (c == EOF) {
// If EOF is just a delimiter, don't return EOF so that the word
// gets processed.
if (wordlength > 0)
{
ungetc (c, this->infile_);
return FP::RT_SUCCESS;
}
else
// else return EOF so that read loops stop
return FP::RT_EOFILE;
}
else if (c == '\n')
{
// if the EOLINE is just a delimiter, don't return EOLINE
// so that the word gets processed
if (wordlength > 0)
ungetc (c, this->infile_);
else
return FP::RT_EOLINE;
}
// Skip comments.
if (this->comments (buf[0]))
{
if (this->skipline () == EOF)
return FP::RT_EOFILE;
else
return FP::RT_COMMENT;
}
else
return FP::RT_SUCCESS;
}
template <class ENTRY> int
File_Parser<ENTRY>::delimiter (char ch)
{
return ch == ' ' || ch == ',' || ch == '\t';
}
template <class ENTRY> int
File_Parser<ENTRY>::comments (char ch)
{
return ch == '#';
}
template <class ENTRY> int
File_Parser<ENTRY>::skipline (void)
{
// Skip the remainder of the line.
int c;
while ((c = getc (this->infile_)) != '\n' && c != EOF)
continue;
return c;
}
#endif /* _FILE_PARSER_C */
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