邮件发件人和主题

#include <stdio.h>

/* 从以下内容中找出发件人（sos_61361@qq.com）和主题 （He who would search for pearl must dive deep.）
 Sender:sos_61361@qq.com\n\
 Time:2014-04-05\n\
 Subject:motto\n\
 Recipients:Yoyo.520@gmail.com\n\
 Details:He who would search for pearl must dive deep.
*/

/*FindSenderSubject2可任意指定要找哪个字符串之后的内容，可扩展性好,而且收件人始终在主题的前面*/
void FindSenderTopics(const char * StrIn,char *StrOut)
{
	char p1[] = "Sender:";
	char p2[] = "Topics:";
	char tem[256] ={0};
	int j = 0,i = 0,n = 0,m = 0;
	bool flag;
	while( '\0' != StrIn[j] )
	{
		/*找p1*/
		for(n=0;n<sizeof(p1)-1;n++)
		{
			flag = true;
			if(p1[n] != StrIn[j+n])
			{
				flag = false;
				break;
			}		
		}
		if(true == flag )
		{
			i = j+sizeof(p1)-1;
			while('\n' != StrIn[i])
			{
				*StrOut++ =  StrIn[i++];
			}
			*StrOut++ = ' ';
			j = i;
			continue;
		}	
		/*找p2*/
		for(n=0;n<sizeof(p2)-1;n++)
		{
			flag = true;
			if(p2[n] != StrIn[j+n])
			{
				flag = false;
				break;
			}
		}
		if(true == flag )
		{
			i = j+sizeof(p2)-1;
			while('\n' != StrIn[i])
			{
				tem[m++] =  StrIn[i++];
			}
			tem[m] = '\0';
			j = i;
		}
		
       j++;
		
	}

		for(i = 0; i < m; i++)
			*StrOut++ = tem[i];
		*StrOut = '\0';

}

void main()
{
	char in[256] = {" Time:2014-04-05\n\
					  Details:He who would search for pearl must dive deep.\n\
                      Topics:motto\n\
                      Recipients:Yoyo.520@gmail.com\n\
                      Sender:sos_61361@qq.com\n\
					 "};
	char out[256] = {0};



	FindSenderTopics(in,out);
	
	puts(out);
	getchar();
}