About

SmallMlValidator checks that a string conforms to a small subset of html that is safe for embedding in html documents, xml documents and tsv files.

The exact format is defined in validator.pegjs which hopefully should be self-explanatory.

For sanitizing the user input, you might try my other projects cnitize and SmallMlSanitizer

Compiling

No compiling is needed, and the precompiled grammar file is available as validator.js.

There are non dependencies except for node.

Running

Command-line

$ echo '<u><b>valid</b> string</u>'| node index.js
OK

$ echo '<i><i>invalid</b> string</u>'| node index.js
KO, Column 15: Expected "tt" or [buis] but "/" found.

As a node module

var validator = require('./validator')
validator.parse(txt)

License

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; version 2 only.