Expressions is an educational tool for teaching lexers, parsers, and compilers used at the IT University of Copenhagen.

The core of the project was built by Peter Sestoft.

This includes automatic build targets for Coco/R.

The output is an Expressions.exe and a Machine.exe file in the Output folder.

Run either Expressions.exe or Machine.exe from the command line for more info.

The current version has full support for Visual Studio 2010, 2012, and Mono.

The solution also contains a unit test project, which can be easily extended to allow a test-first approach to modifying expressions.

Forecalc is released under a BSD-style license:

Copyright Peter Sestoft, Rasmus Ejlers Møgelberg, and Rasmus Nielsen 2012.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.