inifile.cc

linux下的一个分组遗传算法

//
// inifile.cc - A general inifile class
//
// author: J.I.v.Hemert
// last updated : 08-10-1997
//
// This file implements the class IniFileC, which can be used to read in
// values (strings, doubles and integers) from an external inifile. It
// still has some constraints. Labels cannot be longer than 300 characters
// and the number of labels cannot exceed 50. The inifile should consist of
// lines like this : "value = 0". The spaces around the equalsign must be
// there. Empty lines are ignored, just as lines starting with an #.
//


#include "inifile.h"


void IniFileC::Open (StringT filename)
// Open the inifile and read in all the labels with
// corresponding values.
{
	int i = 0;
	char equalsine;

	nroflabels = 0;
	strcpy (name, filename);

	filedata.open (filename);
	if (!filedata.is_open ())
	{
		cerr << "Error: The inifile \"" << filename << "\" could not be opened" << endl;
		exit (1);
	}

	// Read in all the label and their values
	while ((i < MAXLABELS) && (!filedata.eof ()))
	{
		filedata >> labels[nroflabels];

		// Kill comments of the form: # comment
		if (labels[nroflabels][0] == '#')
		{
			do
				filedata.get (equalsine);
			while (equalsine != '\n');
				
		}
		else
			if (labels[nroflabels][0] != '\0')
			{
				filedata >> equalsine;
				filedata >> data[nroflabels];
				nroflabels++;
			}
		i++;
	}

	if (!filedata.eof ())
		cerr << "Warning: file \"" << name << "\" contains more lines then could be read, the maximum of lines allowed is " << MAXLABELS << endl;

	filedata.close ();

} // Open ()


char * IniFileC::ReadString (StringT label)
// Return a _pointer_ to the string corresponding to the value
// belonging to the label.
{
	int i = 0;
	while ((strcmp (label, labels[i]) != 0) && (i < nroflabels))
		i++;

	if (i < nroflabels)
		return (data[i]);
	else
	{
		cerr << "label " << label << " not found in \"" << name << "\"" << endl;
		return (NULL);
	}
} // ReadString ()


double IniFileC::ReadDouble (StringT label)
// Return a _double_ beloning to the label.
{
	int i = 0;

	while ((strcmp (label, labels[i]) != 0) && (i < nroflabels))
		i++;

	if (i < nroflabels)
		return (atof (data[i]));
	else
	{
		cerr << "label " << label << " not found in \"" << name << "\"" << endl;
		return (0);
	}
} // ReadDouble ()


int IniFileC::ReadInt (StringT label)
// Return a _integer_ beloning to the label.
{
	int i = 0;

	while ((strcmp (label, labels[i]) != 0) && (i < nroflabels))
		i++;

	if (i < nroflabels)
		return (atoi(data[i]));
	else
	{
		cerr << "label " << label << " not found in \"" << name << "\"" << endl;
		return (0);
	}
} // ReadInt ()


bool IniFileC::ReadBool (StringT label)
// Return a _boolean_ beloning to the label.
{
	int i;
	char * tmp;

	tmp = (char *) malloc (sizeof (char) * MAXSTRINGLENGTH);
	strcpy (tmp, label);
	i = ReadInt (tmp);
	free (tmp);
	switch (i)
	{
		case 0:
			return (false);
		case 1:
			return (true);
		default:
			cerr << "Warning: label \"" << label 
					<< "\" in \"" << name 
					<< "\" doesn't have a boolean (0 or 1) value, choosing false" << endl;
			return (false);
	}
} // ReadBool ()


// eof inifile.cc