//根据符号','分割字符串，例如：字符串"a,bbb,ccc"->数组[a,bbb,ccc] author:wangchangshuai jlu

char** splitFileNames(const char* strFileNames, int* count)

{

char** result = NULL, *strFileNamesCopy = NULL;

if ((strFileNamesCopy = (char*) myMalloc(strlen(strFileNames) + 1)) == NULL)

{

myLog("Malloc heap failed!\n");

return NULL;

}

strcpy(strFileNamesCopy, strFileNames);

char *p, *pre = strFileNamesCopy;

//统计符号','的个数，假设文件名的个数是符号','的个数+1

int i, supposeCount = 0, len = strlen(strFileNames);

for (i = 0; i < len; ++i)

{

if (strFileNames[i] == ',')

{

supposeCount++;

}

}

supposeCount += 1; //统计结束

if ((result = (char**) myMalloc(sizeof(char*) * supposeCount)) == NULL)

{

myLog("Malloc heap failed!\n");

return NULL;

}

//开始分割，同时统计实际文件名的个数

(*count) = 0;

for (i = 0; (p = strchr(strFileNamesCopy, SPLIT_FLAG)) != NULL; ++i)

{

if (pre == p)

{ //假如两个逗号之间没有字符串

*p = '\n';

pre = p + 1;

continue;

}

if ((result[*count] = (char*) myMalloc(p - pre + 1)) == NULL)

{

myLog("Malloc heap failed!\n");

return NULL;

}

memset(result[*count], 0, p - pre + 1);

memcpy(result[*count], pre, p - pre);

*p = '\n';

pre = p + 1;

++(*count);

}

if (*pre != '\0')

{ //假如最后一个逗号后面有字符串

if ((result[*count] = (char*) myMalloc(strlen(pre) + 1)) == NULL)

{

myLog("Malloc heap failed!\n");

return NULL;

}

memset(result[*count], 0, strlen(pre) + 1);

strcpy(result[*count], pre);

++(*count);

}

if (pre == strFileNamesCopy)

{ //假如没有找到符号“,”

if ((result[0] = (char*) myMalloc(strlen(strFileNamesCopy) + 1)) == NULL)

{

myLog("Malloc heap failed!\n");

return NULL;

}

memset(result[0], 0, strlen(strFileNamesCopy) + 1);

strcpy(result[0], strFileNamesCopy);

*count = 1;

}

myFree(strFileNamesCopy);

return result;

}