The internal parser

The parser is written using Ply. It started as two separate parsers: one for the types language, and other for the expression language; however now it has been merged into a single parser to allow for more real-world like programs

There are no public API for the parsers. You get access to them by calling:

• xotl.fl.parse() for full programs;
• xotl.fl.parsers.expressions.parse() for single expressions; and
• xotl.fl.parsers.types.parse() for single type expressions.