Arduino Function split() – Meine Elektronik Projektinformationen

String text = "eins_zwei_drei";

String cmd = split(text, '_',2);

Serial.println(cmd);

Ergebnis: drei

String text = "eins_zwei_drei";

String cmd = split(text, '_',2);

Serial.println(cmd);

Ergebnis: drei

String split(String s, char parser, int index) {
  String rs="";
  int parserIndex = index;
  int parserCnt=0;
  int rFromIndex=0, rToIndex=-1;
  while (index >= parserCnt) {
    rFromIndex = rToIndex+1;
    rToIndex = s.indexOf(parser,rFromIndex);
    if (index == parserCnt) {
      if (rToIndex == 0 || rToIndex == -1) return "";
      return s.substring(rFromIndex,rToIndex);
    } else parserCnt++;
  }
  return rs;
}

String split(String s, char parser, int index) {

String rs="";

int parserIndex = index;

int parserCnt=0;

int rFromIndex=0, rToIndex=-1;

while (index >= parserCnt) {

rFromIndex = rToIndex+1;

rToIndex = s.indexOf(parser,rFromIndex);

if (index == parserCnt) {

if (rToIndex == 0 || rToIndex == -1) return "";

return s.substring(rFromIndex,rToIndex);

} else parserCnt++;

}

return rs;

}