[KingOfCoders]

I thought the nice thing about Modula-2 was that you could browse through interface files to understand some code and then go into implementations.

[mumblemumble]

It's true, but there are so many ways to skin that cat. Smalltalk, for example, gives an even more fluid way to browse at a high level and then drill in, and it doesn't (necessarily) have source code files in the first place.