public Concordance CreateConrcondance(string path, int N) // int N - count of string in one page
{
Concordance concordance = new Concordance(_alphabet);
StreamReader text = new StreamReader(path);
string pattern = string.Format("\\b[{0}]+\\b", _alphabet);
Regex regex = new Regex(pattern, RegexOptions.IgnoreCase);
StringBuilder currentPage = new StringBuilder();
string currentString = text.ReadLine();
int currentStringNumber = 0;
int currentPageNumber = 1;
while (currentString != null)
{
currentStringNumber += 1;
currentPage.Append(currentString + " ");
if (currentStringNumber == N)
{
CreateConcordanceItems(regex, currentPage.ToString(), concordance, currentPageNumber);
currentPageNumber += 1;
currentStringNumber = 0;
currentPage.Clear();
}
currentString = text.ReadLine();
if (currentString == null)
{
CreateConcordanceItems(regex, currentPage.ToString(), concordance, currentPageNumber);
}
}
text.Close();
return(concordance);
}
private void CreateConcordanceItems(
Regex regex, string currentPage, Concordance concordance, int currentPageNumber)
{
MatchCollection wordsCollection = regex.Matches(currentPage.ToString());
foreach (var word in wordsCollection)
{
string _word = word.ToString().ToLower();
char firstLetter = char.ToUpper(_word[0]);
SortedDictionary <string, IWordInfo> wordValue =
(SortedDictionary <string, IWordInfo>)concordance[firstLetter];
if (wordValue.Keys.Contains(_word))
{
wordValue[_word].CountUp();
wordValue[_word].AddPageNumber(currentPageNumber);
}
else
{
IWordInfo newWord = new WordInfo(_word, currentPageNumber);
wordValue[newWord.Value] = newWord;
}
}
}