👑 REx Parser Generator

For running REx, an input file is required and command line options can be specified. Select input file, enter command line options, and click "Generate" to run REx. Click "configure" for command line configuration.

Input file:

Command line:

configure

Sample grammars

CSS Selectors Level 3
EcmaScript 5th Edition use LL(1) with backtracking and automatic semicolon insertion
Java 7 use LL(2) and backtracking
JSON as on json.org
JSON as in RFC7159
RELAX NG compact syntax use LL(2) with backtracking
REx v6.1
SPARQL 1.1
Turtle
XML
XPath 2.0
XPath 3.0
XPath 3.1
XQuery 1.0
XQuery 3.0
XQuery 3.1
XQuery Update Facility 1.0
XQuery Update Facility 3.0

Syntax diagrams

Paste or load grammar here.

Grammar conversion

Paste foreign grammar here.

Command line client

Use REx.java for running REx on this server from a command shell.

Source Code

REx source code is available on GitHub.

License

REx is supplied under the Apache 2.0 license.