This repository is home to an assortment of preprocessors and macros for the GNU Troff typesetting package.
I have written all of them except sequence.pic which is part of the
UML Graph package and included here for convenience
only.
These scripts do not strive to be complete, well tested and fit for general usage - they
are merely quick and dirty hacks that accumulated on my hard drive :-).
ebnf.sno is a CSNOBOL4 program that compiles
extended BNF descriptions into GNU pic code using macros from syntax.pic.
This effectively allows you to embed EBNF grammars in Groff source code and
have it rendered as (box and arrow) syntax diagrams.
Most EBNF constructs and some extensions are supported, but I'm too lazy to document
all of them now.
To build the sample select-from.ebnf, type something like:
cat samples/select-from.ebnf | ./ebnf.sno | pic | groff -Tps >select-from.ps
highlight.sno is a small preprocessor written in CSNOBOL4
that processes blocks of source code embedded in your Groff document with
GNU Source-highlight to produce
syntax highlighted text.
The output is formatted according to groff.outlang which currently only works with
the mom macros.
Example:
.QUOTE
.CODE
.HIGHLIGHT c
#include <stdio.h>
int main(int argc, char **argv)
{
printf("Hello world!\n");
return 0;
}
.HIGHLIGHT
.CODE OFF
.QUOTE OFF
uml.sno is a small preprocessor (again requires CSNOBOL4) that
renders an embedded diagram with PlantUML
and automatically emits the appropriate Mom PDF_IMAGE macro calls.
Naturally, this leaves around PDF images (uml_tempX.pdf) that you should remove
after generating your document.
htbl.tes is a quick and dirty SciTECO script
that can act as a drop-in replacement for the tbl preprocessor that generates
proper HTML tables when the Groff html output device is used.
With the original tbl preprocessor, tables are (and must be) rendered by the postscript
device and will be embedded as images into the HTML page.