Small tool to generate ladder diagrams for network protocols. obsoleted by mscgen.
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Harald Welte f988458bdf
add missing primitives
13 years ago
Makefile the .dot files also depend on the program 13 years ago
README add a README file 13 years ago allow the use of underscores in entity names 13 years ago
gprs_attach.lad add GPRS attach case 13 years ago
location_update.lad add more complete example for location area update 13 years ago
map_client_server.lad add missing primitives 13 years ago
test.lad initial commit of tool to generate ladder diagrams 13 years ago


gen_ladder - tool to generate protocol ladder diagrams
(C) 2010 by Harald Welte <>

This tool can be used to generate typical ladder diagrams as they are often
used in the description of networking protocols.

The input file is a ".lad" file, from which generates a graphviz
file called ".dot", which in turn can be processed by the "dot" program to
generate a .ps (postscript) or .svg output file.

As an example, I have included a "test.lad" file, which you can process by
	make test.svg

The manual intermediate steps can be seen from the Makefile.