The non-exported modules in Text.ParserCombinators.UU.Demo contain a list of examples of how to use the main functionality of this library which demonstrates:

• how to write basic parsers
• how to to write ambiguous parsers
• how error correction works
• how to fine-tune your parsers to get rid of ambiguities
• how to use the monadic interface
• what kind of error messages you can expect if you write erroneous parsers
• how to use the permutating/merging parsers
• to see the parsers in action load the module Text.ParserCombinators.UU.Demo.Examples or Text.ParserCombinators.UU.Demo.MergeAndPermute in ghci and type show_demos, while looking at the corresponding code