/****
3、鍵值對（"key = valude"）字串，在開發中經常使用；
要求1：請自己定義一個介面，實現根據key獲取valude；
要求2：編寫測試用例。
要求3：鍵值對中間可能有n多空格，請去除空格
注意：鍵值對字串格式可能如下：
"key1 = valude1"
"key2 =       valude2"
"key3  = valude3"
"key4        = valude4"
"key5   =   "
"key6   ="
"key7   =   "
***/
/***
作者：一葉扁舟
作用：鍵值對
時間：15:32 2017/5/7
***/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
//去空格
int trimSpace1(char *inbuf, char *outbuf){
	char * result = outbuf;
	if (inbuf == NULL || outbuf == NULL){
		return -1;
	}
	while (*inbuf != '\0'){
		if (*inbuf == ' '){
			inbuf++;
		}
		else{
			*result = *inbuf;
			result++;
			inbuf++;
		}

	}

	*result = '\0';
	return 1;
}
int getKeyByValude(char *keyvaluebuf,char *keybuf, char *valuebuf, int * valuebuflen){
	
	if (keyvaluebuf == NULL || keybuf == NULL || valuebuf == NULL){
		return -1;
	}
	char tempString[200];
	char *p = tempString;
	char *key = keybuf;
	char *value = valuebuf;
	char buff[100];
	int i = 0;
	int length = 0;
	//將傳入的字串過濾掉空格
	trimSpace1(keyvaluebuf, tempString);
	//首先將等號左邊的key取出來,即
	while ( p[i]!= '='){
		i++;
	}
	memcpy(buff,p,i);
	buff[i] = '\0';
	//找到對應的key值
	if (strcmp(buff, key) == 0){
		int j = strlen(p) - i -1;
		memcpy(valuebuf,p +(i+1),j);
		valuebuf[j] = '\0';
		*valuebuflen = j;
	}
	else{//沒有
		*valuebuflen = 0;
		valuebuf[0] = '\0';
	}
	return 1;
}


void main(){
	char *keyValuSource = "name = valude1";
	char key[100]="name1" ;
	char value[100];
	int valueLength = 0;
	int temp = getKeyByValude(keyValuSource, key, value, &valueLength);
	if (temp == 1){
		printf("key:%s\n",key);
		printf("value:%s\n", value);
		printf("value的長度：%d\n", valueLength);
	}
	else{
	printf("調用出錯\n");
	}
	printf("\n");
	system("pause");
}