I've created a little spellchecker

Have you heard of aspell?

How can I do this?

Write function, functions that take arguments, functions that return values, functions that can be tested outside of jurafskyspell.pl, functions that don't operate on global variables

my %dictionary; PopulateDict( \%dictionary, $file );

my $answer = SuggestThese( @possibilities );

use quotemeta when generating regexes

use a hash (also known as a dictionary ), see Tutorials Data Types and Variables,the basic datatypes, three

Hey, use Tie::DictFile - tie a hash to local dictionary file

For prompting you can use Term::Interact

You might even be able to use Text::Aspell