public int GetNumPalSentences()
{
int numPalSentences = 0;
// text split into strings separated by periods
string[] sentences = text.Split('.');
foreach (string str in sentences)
{
bool isPal = true;
List <char> charList = new List <char>();
// reduce to strings containing only letters
for (int i = 0; i < str.Length; i++)
{
if ((str[i] >= 65 && str[i] <= 90) || (str[i] >= 97 && str[i] <= 122))
{
char curr = str[i];
if (str[i] < 97)
{
curr += (char)32;
}
charList.Add(curr);
}
}
CharStr charStr = new CharStr(charList);
string cleanStr = charStr.ToString();
int length = cleanStr.Length;
int j = 0, k = length - 1;
if (length > 1)
{
while (j <= k)
{
if (cleanStr[j] != cleanStr[k])
{
isPal = false;
}
j++;
k--;
}
}
else
{
isPal = false;
}
if (isPal)
{
numPalSentences++;
}
}
return(numPalSentences);
}
public void FindUniqueWords()
{
int index = 0; // index of char in paragraph
while (index < text.Length)
{
List <char> charList = new List <char>();
// add char to list if it is a letter
while (index < text.Length && ((text[index] >= 65 && text[index] <= 90) || (text[index] >= 97 && text[index] <= 122)))
{
char curr = text[index];
if (text[index] < 97)
{
curr += (char)32;
}
charList.Add(curr);
index++;
}
if (charList.Count > 0)
{
CharStr charStr = new CharStr(charList);
string currWord = charStr.ToString(); // convert char list to string
bool exists = false;
for (int i = 0; i < uniqueWords.Count && uniqueWords.Count > 0; i++)
{
// instance of existing word
if (String.Equals(currWord, uniqueWords[i].GetWord()))
{
uniqueWords[i].Increment();
exists = true;
break;
}
}
// unique word
if (!exists)
{
Word newWord = new Word(currWord);
uniqueWords.Add(newWord);
}
}
else
{
index++;
}
}
}