Arduino

String_Split.ino

/**********************************************************
Name:String Split Arduino
DATE:2016/03/31
By CharlotteHong
**********************************************************/
#define led 13
/* 切割字串 (要切割的字串,切割的符號)
字串的格式如 srt[]="1,2";
回傳值為一陣列起始值0為陣列長度 */
int* str_split(const char* str, const char* sp);
/* ================================================== */
void setup() {
    pinMode(led, OUTPUT);
    Serial.begin(9600);
    Serial.print("Welocom split.\n");
    test();
}

void loop() {

}
/* ================================================== */
void test(){
    char str[]="18,03,19,50,46,29,23,15,26,48,45";
    int *array=str_split(str,",");

    for (int i = 1; i <= array[0]; ++i){
        Serial.print("[");
        Serial.print(array[i]);
        Serial.print("]");
    }
    Serial.println("");
    free(array); 
}
/* ================================================== */
int* str_split(const char* str, const char* sp){
    int *ptr;
    char *temp;

    // 計算字串內總共有幾個數
    int len=1;
    for (int i = 0; i < strlen(str); ++i){
        if ( str[i] == sp[0])
            len++;
    }

    // 根據長度配置記憶體
    ptr = (int*)malloc(sizeof(int)*(len+1));
    *ptr = (int)(len);
    
    // 開始切割
    int tempflag=0,index=1;
    temp = (char*)malloc(sizeof(char));
    for (int i = 0; i <= strlen(str); ++i){
        if ( str[i] == sp[0] || i==strlen(str)){
            len++;
            tempflag=0;
            // printf("temp=%c%c\n",temp[0],temp[1] );
            sscanf(temp, "%d", (ptr+index));
            index++;
            free(temp);
            temp = (char*)malloc(sizeof(char));
        }
        else{
            temp[tempflag++]=str[i];
        }
    }
    free(temp);
    return ptr;
}
/* ================================================== */