<br><br><div class="gmail_quote">Thanks for your kind replies. <br>I am a learner of C# and there is no
prior programming experience. I've created this application to practice
what I'd learnt. The Perl scrip I presented is using probably hashtable
and obviously fine piece of code I just tried to implement same idea in
another way.<br>
I try after changing punctuation cleaning method and also using
dictionaries/hash tables instead. Regular Expressions are good idea to
clean text (I still have to learn regex then will be able to apply).<br>Thanks
for your valuable suggestions about Perl and Python and I'll try to
learn these languages as soon as possible after completing basic
concepts of C#.<br>Regards<br></div><br><br clear="all"><br>-- <br>Muhammad Shakir Aziz محمد شاکر عزیز<br>