Syntrax / JSyntrax

Syntrax is a railroad diagram generator. It creates a visual illustration of the grammar used for programming languages. A specification file describes the syntax as a hierarchy of basic elements. This is processed into an image representing the same syntax with interconnected nodes.

JSyntrax is a reimplementation of Syntrax in Java in order to simplify installation, get rid of required libraries and make it easily portable to any operating system.

Supported Image Formats

Attributes

Name Default value Description

Name	Default value	Description
syntrax	syntrax	The path to the `syntrax` executable. This attribute is used for the Syntrax implementation.
java	java	The path to the `java` executable. This attribute is used for the JSyntrax implementation. The `DIAGRAM_JSYNTRAX_HOME` environment variable should then also be defined and point to the JSyntrax installation directory.
heading	unspecified	Diagram title
scale	1	A scale factor that is applied to the image.
style-file	unspecified	Path to a style config file to pass to Syntrax.
transparent	false	Makes the background of the image transparent instead of opaque white.

syntrax

The path to the syntrax executable. This attribute is used for the Syntrax implementation.

java

The path to the java executable. This attribute is used for the JSyntrax implementation. The DIAGRAM_JSYNTRAX_HOME environment variable should then also be defined and point to the JSyntrax installation directory.

heading

unspecified

Diagram title

scale

A scale factor that is applied to the image.

style-file

unspecified

Path to a style config file to pass to Syntrax.

transparent

false

Makes the background of the image transparent instead of opaque white.