GPP

Stratego -- Strategies for Program Transformation

GPP is a generic pretty-printer package that supports pretty-printing of parse-trees ( AsFix^? ) with comment preservation and of abstract syntax trees.

GPP supports the output formats plain text, LaTeX^?, and HTML. Formattings are defined in pretty print tables, which can be generated from SDF syntax definitions.

Tools in GPP:

abox2text^?
abox2html^?
abox2latex^?
ast2abox^?
ppgen
...