Package general-purpose-preprocessor

Customizable language-agnostic preprocessor

http://www.nothingisreal.com/gpp/

GPP is a general-purpose preprocessor with customizable syntax,
suitable for a wide range of preprocessing tasks. Its independence
from any one programming language makes it much more versatile than
the C preprocessor (cpp), while its syntax is lighter and more
flexible than that of GNU m4. There are built-in macros for use with
C/C++, LaTeX, HTML, XHTML, and Prolog files.

General Commands (Section 1)
gpp
GPP is a general-purpose preprocessor with customizable syntax, suitable for a wide range of preprocessing tasks. Its independence from any programming language...