vparseline.cpp

otl简单包装实现类,对数据库进行操作的,简单易用.

/***************************************************************************
                          vparseline.cpp -  description
                             -------------------
    begin                : 2004-12-25
    copyright            : (C) 2004 by LiuZhong
    email                : [e-mail]
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
#include <stdio.h>
#include <memory.h>
#include <stdlib.h>

#include "vparseline.h"


VParseLine::VParseLine(int LineSize)
{
	m_LineSize = LineSize;
	m_pLine = NULL;
	m_pName = NULL;
	m_pValue = NULL;
}
	
VParseLine::~VParseLine()
{
	if(m_pLine) delete []m_pLine;
	if(m_pName) delete []m_pName;
	if(m_pValue) delete []m_pValue;
}
	
int VParseLine::ParseLine(const char* Line)
{
	if(strlen(Line)>1024) return -1;
	if(strlen(Line)>m_LineSize){
		if(m_pLine){
			delete []m_pLine;
			m_pLine = NULL;
		}
		if(m_pName){
			delete []m_pName;
			m_pName = NULL;
		}
		if(m_pValue){
			delete []m_pValue;
			m_pValue = NULL;
		}
		m_LineSize = strlen(Line)+1;
	}
	if(!m_pLine){
		m_pLine = new char[m_LineSize];
		m_pName = new char[m_LineSize];
		m_pValue = new char[m_LineSize];
	}
	memset(m_pLine,0,m_LineSize);
	memset(m_pName,0,m_LineSize);
	memset(m_pValue,0,m_LineSize);
	
    char  *index,*index1,*index2;
    int   rval = 0,pos;
    strcpy(m_pLine,Line);
    index = m_pLine;
    while(*index==' ' || *index=='\t') index++;
    if ((*index != '#') && (*index != '\n') && strncmp(index,"//",2)
         && (*index != ';') && (index != NULL)) {
		 index1=strchr(index,'=');
		 if(index1!=NULL){
             pos = index1-index-1;
			 index1++;
             *(index+pos+1) = 0;
             while(pos>0 && (*(index+pos)==' ' || *(index+pos)=='\t')) *(index+pos--)=0;
		     while(*index1==' ' || *index1=='\t')index1++;
		     index2 = index1+strlen(index1)-1;
             while(index2>=index1 &&(*index2=='\r' || *index2=='\n' || *index2==' '||*index2=='\t')) *index2-- = 0;
		     strcpy(m_pName,index);
		     strcpy(m_pValue,index1);
		     rval = 2;
		 }
		 else{
		 	 index1 = index+strlen(index)-1;
			 while(index1>=index &&( *index1=='\r' || *index1=='\n' || *index1==' '||*index1=='\t')) *index1-- = 0;
			 strcpy(m_pName,index);	 
             rval = 1;
         }		    
    }
    return rval;
}

const char* VParseLine::Line()
{
	return m_pLine;
}

const char* VParseLine::Name()
{
	return m_pName;
}

const char* VParseLine::Value()
{
	return m_pValue;
}