Password.cpp

#include "Password.h"
#include <string>
#include <cctype>

using std::string;

/*
  The function receives a string counts how many times the same character 
  occurs at the beginning of the string, before any other characters (or the
  end of the string). The function is case-sensitive so 'Z' is different than
  'z' and any ASCII characters are allowed.
*/
int Password::count_leading_characters(string phrase){
  int repetition = 1;
  int index = 0;
  while( index < phrase.length()-1 && phrase[index] == phrase[index+1] ){
    repetition++;
    index++;
  }
  return repetition;
}

/*
  receives a string and returns whether it has both at least one upper-case
  letter and at least one lower-case letter
*/
bool Password::has_mixed_case(string pass){
  bool has_upper_case = false;
  bool has_lower_case = false;

  for(int i = 0; i < pass.size(); i++){
    char ch = pass[i];
    if (isupper(ch)){
      has_upper_case = true;
    }
    if (islower(ch)){
      has_lower_case = true;
    }

    if(has_lower_case && has_upper_case){
      return true;
    }

  }
  
  return false;
}