hello all,

i'm asking for help once again in developing my search engine. i want to add the feature of wildcard matching in my desktop search. if a user enters *.txt as input, the search results should contain all the files which have a .txt extension. also, if a user enters sha* as input, the results should display all the files starting from sha. can anyone please help me out with this issue? i have no idea by which this can be implemented. hoping for an early reply.