Tool for generating railroad diagram used on json.org [closed]

Answer 1

from Douglas Crockford
to Aleem B
date Tue, Apr 28, 2009 at 6:01 PM
subject Re: Railroad Diagrams on json.org

I drew them with Visio. Creative Docs.NET also works well.

--

Aleem B wrote:

Hello Douglas,

I thoroughly enjoy most things you put out there and the railroad diagrams on json.org are no different. I have been trying to look around for a tool that would generate diagrams nearly as eloquent but have had no luck:

Tool for generating railroad diagram used on json.org

Is there some tool you used to convert the BNF to these diagrams or were they hand crafted?

-- Aleem

Answer 2

I seem to remember that IBM has a tool that builds such diagrams as part of their BookMaster SGML suite. Railroad diagrams are often used in mainframe documentation.

Answer 3

I have been looking also for the tools used to generate these Syntax Diagrams and if possible in js library so it can be edited and displayed without awaiting a boring time for a graphic to come.

I know there are tools out there but I would say that the generator from bottlecaps.de has a nice graphic with color option. Unfortunately I could not get source code of the tool it self there.

I went also to the related questions of answers here but got only followings where we can get it as open source js library and provided with an online demo where we can try and play with.

• railroad diagram generator from tabatkins, in js (Syntax exists as a Python library as well)
• js-sequence-diagrams from bramp, in js but UML (Syntax is generated via bottlecaps.de)
• umlClass from GoJS, in js but found only for UML