学步园

函数void SplitString(const char *aString,char aSeperator)以aSeperator为分隔符aString拆分打印输出，但注意：当aSeperator存在于“引用的字符串中时，或两个aSeperator在一起时，将不作为分隔符，比如假定分隔符是+时，如下为不同情形下的输出示例：
(1)abc+"quoted+quoted"+plus+plus
输出：
abc
"quoted+quoted"
plus+plus
(2)abc+"123++123"+def
输出：
abc
"123++123"
def
(3)abc+"123+test
输出：
abc
"123+test
编程实现函数SplitString

#include <iostream>
using namespace std;

void SplitString(const char *aString, char aSeperator)
{
	if(NULL == aString)
	{
		return ;
	}
	int flag = 1;
	char *p1 = (char *)aString;
	while(*p1 != '\0')
	{
		if(*p1 == '\"')
		{
			flag = -flag;
			cout << *p1;
			p1++;
			continue;
		}
		if(flag < 0)
		{
			cout << *p1;
			p1++;
		}
		else
		{
			if(*p1 == aSeperator)
			{
				char *p2 = ++p1;
				if(*p2 == aSeperator)
				{
					cout << aSeperator;
					p1=++p2;
				}
				else
				{
					cout <<endl;
					p1=p2;
				}
			}
			else
			{
				cout << *p1;
				p1++;
			}
		}
	}
}

void main()
{
	char *a = "abc+\"quoted+quoted\"+plus++plus";
	SplitString(a,'+');
	cout << endl<<endl;
	char *b = "abc+\"123++123\"+def";
	SplitString(b,'+');
	cout << endl<<endl;
	char *c = "abc+\"123+test";
	SplitString(c,'+');
	cout <<endl<<endl;
}

abc
"quoted+quoted"
plus+plus

abc
"123++123"
def

abc
"123+test

请按任意键继续. . .