Stackless & String-processing

[Greg Ewing]

If you're trying to parse something using a grammar
that needs heavy transformations to make it tractable,
then obviously using monadic parsers with arbitrary
code embedded in them is going to get in the way
of those transformations.

However, not all parsing problems are like that.
Programming languages are usually designed to be
straightforward to parse efficiently. Monadic 
techniques can allow such parsers to be written 
very elegantly.

Greg