Programming

opt="row234"

opt="textnum"

#include <stdlib.h>
#include <stdio.h>
#include <string.h>


//Function to convert a character to an integer.
int my_atoi(char chr) {
    int ret;
    switch(chr) {
    case '0' :
        ret =  0;
        break;
    case '1' :
        ret =  1;
        break;
    case '2' :
        ret =  2;
        break;
    case '3' :
        ret =  3;
        break;
    case '4' :
        ret =  4;
        break;
    case '5' :
        ret =  5;
        break;
    case '6' :
        ret =  6;
        break;
    case '7' :
        ret =  7;
        break;
    case '8' :
        ret =  8;
        break;
    case '9' :
        ret =  9;
        break;
    }
    return ret;
}

int main() {
        char str[] = "Hello123";    //The string that you want to split.
        char *pstr = &str[0];        //Pointer to store the base address of the string.
        char chr;
        char *sstr = malloc( 100 * sizeof(char));     //The pointer to substring.
        int snum = 0;                //The sub-number.
        float temp_snum;
        int i = 0;
        float j = 0.1;
        int k = 0;


        printf("Got string -->%s<--\n",str);
        while ( *pstr != '\0' ) {
            chr = *pstr;
            printf("Got character -->%c<--\t",chr);

            if( (( chr > 64 ) && ( chr <91 )) || (( chr > 96 ) && ( chr <123 ))) {
                //Check if the character is an alphabet.
                printf("Its a alphabet\n");
                *(sstr + i) = chr;
                i++;
            } else if (( chr > 47 ) && ( chr < 58)) {
                //Check if the character is a number.
                printf("Its a number\n");
                k = my_atoi(chr);
                temp_snum += (j * k);
                j *= 0.1;
            } else {
                printf("Its something else\n");
            }
            pstr += 1;
        }

        //Convert the decimal number to an integer.
        j = 0.1/j;
        temp_snum *= j;
        snum = (int) temp_snum;

        printf("The substring is -->%s<--\n",sstr);
        printf("The number is -->%d<--\n",snum);
        free(sstr);
        return 0;
}

#include <iostream>
#include <string>

using namespace std;

//Function to convert a character to an integer.
int my_atoi(char chr) {
    int ret;
    switch(chr) {
    case '0' :
        ret =  0;
        break;
    case '1' :
        ret =  1;
        break;
    case '2' :
        ret =  2;
        break;
    case '3' :
        ret =  3;
        break;
    case '4' :
        ret =  4;
        break;
    case '5' :
        ret =  5;
        break;
    case '6' :
        ret =  6;
        break;
    case '7' :
        ret =  7;
        break;
    case '8' :
        ret =  8;
        break;
    case '9' :
        ret =  9;
        break;
    }
    return ret;
}

int main() {
        string my_str = "Hello123";
        string sstr;
        char chr;
        int snum = 0;                //The sub-number.
        float temp_snum;
        int i = 0;
        float j = 0.1;
        int k = 0;

        cout<<"The string is: "<<my_str<<endl;
        while ( my_str[i] != '\0' ) {
            chr = my_str[i];
            cout<<"Got charecter :"<<chr<<endl;

            if( (( chr > 64 ) && ( chr <91 )) || (( chr > 96 ) && ( chr <123 ))) {
                //Check if the character is an alphabet.
                cout<<"Its an alphabet"<<endl;
                sstr += chr;

            } else if (( chr > 47 ) && ( chr < 58)) {
                //Check if the character is a number.
                cout<<"Its a number"<<endl;
                k = my_atoi(chr);
                temp_snum += (j * k);
                j *= 0.1;
            } else {
                printf("Its something else\n");
            }
            i++;
        }

        //Convert the decimal number to an integer.
        j = 0.1/j;
        temp_snum *= j;
        snum = (int) temp_snum;

        sstr += "\0";
        cout<<"The sub-string is: "<<sstr<<endl;
        cout<<"The sub number is: "<<snum<<endl;

        return 0;
}

#include <string>
#include <sstream>
#include <iostream>
#include <cctype>

int 
main
  (
    int argc, 
    char *argv[]
  )

{

  std::string str("row12");
  std::string temp;
  int num = 0;
    
  // Extracts the first numeric block. Locates the first number
  // in the string and extracts it.

  for (unsigned int k=0; k < str.size(); k++)
    {
      if (isdigit(str[k]))
        {
          for (unsigned int i = k; i < str.size(); i++)
            {
              temp += str[i];               
            }
          break;
        }    
    }
    
  std::istringstream stream(temp);
  stream >> num;
    
  std::cout << num << std::endl;    
}