A simple decoder for morse code files

I have an encoder that encodes the "Characters" from a text file into morse code. I provide you with the C source code for a Morse Code encoder using this encoding. I need the opposite of the encoder. The decoder would ask for a input file . And would write the result into a decoded file. So feeding an output file of the encoder to the decoder would result into the Original copy fed to the encoder. I need the code to be commented (not thoroughly) and a paragraph or two briefly explaining how it works. Many Thanks, A ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows? (depending on the nature? of the deliverables): a)? For web sites or? other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software? installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Windows XP, UNIX