Parsing a part of a string of unknown length

Projects Programming
12

Some code samples that have String operations you might use. You could capture the String, check to see if contains key words like "TITLE", find the location of the colon : in the String, then capture the remainder of the String starting two places beyond the location of the colon :.

//zoomkat 3-5-12 simple delimited ',' string  
//from serial port input (via serial monitor)
//and print result out serial port

String readString, data;
int CD, CM, CT, CS, BR; 

void setup() {
  Serial.begin(9600);
  Serial.println("serial delimit test 1.0"); // so I can keep track of what is loaded
}

void loop() {

  //expect a string like CD01,CM01,CT01,CS03,BR255,

  if (Serial.available())  {
    char c = Serial.read();  //gets one byte from serial buffer
    
    if (c == ',') {
      Serial.println(readString); //prints string to serial port out
      
      if(readString.indexOf("CD") >=0) {
        data=readString.substring(2);
        Serial.print("CD is: ");
        Serial.println(data);
        CD = data.toInt();
        Serial.println(CD);
        Serial.println();
      }
      if(readString.indexOf("CM") >=0) {
        readString=readString.substring(2);
        Serial.print("CM is: ");
        Serial.println(readString);
        CM = readString.toInt();
        Serial.println(CM);
        Serial.println();
      }
      if(readString.indexOf("CT") >=0) {
        readString=readString.substring(2);
        Serial.print("CT is: ");
        Serial.println(readString);
        CT = readString.toInt();
        Serial.println(CT);
        Serial.println();
      }
       if(readString.indexOf("CS") >=0) {
        readString=readString.substring(2);
        Serial.print("CS is: ");
        Serial.println(readString);
        CS = readString.toInt();
        Serial.println(CS);
        Serial.println();
      }
       if(readString.indexOf("BR") >=0) {
        readString=readString.substring(2);
        Serial.print("BR is: ");
        Serial.println(readString);
        BR = readString.toInt();
        Serial.println(BR);
        Serial.println();
      }
      
      //do some stuff

      readString=""; //clears variable for new input
      data=""; 

    }  
    else {     
      readString += c; //makes the string readString
    }
  }
}

//zoomkat 3-5-12 simple delimited ',' string  
//from serial port input (via serial monitor)
//and print result out serial port

String readString, substring;
//String servo1;
int loc; 

void setup() {
  Serial.begin(9600);
  Serial.println("serial delimit test 1.0"); // so I can keep track of what is loaded
}

void loop() {

  //expect a string like AA BB01/10/2014 CC12:23:25 DD32.2 EE5432 FF54.35,

  if (Serial.available())  {
    char c = Serial.read();  //gets one byte from serial buffer
    //if (c == '\n') {  //looks for end of data packet marker

    if (c == ',') {
      Serial.println(readString); //prints string to serial port out
      //do stuff      
      loc = readString.indexOf("BB");
      //Serial.println(loc);
      substring = readString.substring(loc+2, loc+12);
      Serial.print("date is: ");
      Serial.println(substring);

      loc = readString.indexOf("CC");
      //Serial.println(loc);
      substring = readString.substring(loc+2, loc+11);
      Serial.print("time is: ");
      Serial.println(substring);

      loc = readString.indexOf("DD");
      //Serial.println(loc);
      substring = readString.substring(loc+2, loc+6);
      Serial.print("DD is: ");
      Serial.println(substring);

      loc = readString.indexOf("EE");
      //Serial.println(loc);
      substring = readString.substring(loc+2, loc+6);
      Serial.print("date is: ");
      Serial.println(substring);

      loc = readString.indexOf("FF");
      //Serial.println(loc);
      substring = readString.substring(loc+2);
      Serial.print("FF is: ");
      Serial.println(substring);      

      readString=""; //clears variable for new input
      substring=""; 

    }  
    else {     
      readString += c; //makes the string readString
    }
  }
}