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Pallache

A small and simple header only math parser library (written in C++14):

/* By BC van Zuiden -- Leiden, November 2015 */
/* Probably very buggy USE AT OWN RISK this will brick everything you own */
/* NOBODY but YOU is liable for anything that happened in result of using this */
/* WARNING: DON'T RUN THIS PROGRAM THIS WILL DESTROY YOUR COMPUTER AND/OR HOUSE */
/* Any copyrighted piece of code within this code is NOT mine */
/* Inclusion of that code is forced upon me by a scary anonymous guy with a gun*/

Feel free to reuse and contribute, pull requests are very welcome! This code is (and forever will be) a work in progress.

Pallache is a calculator library that uses the shunting yard algorithm to evaluate mathematical expressions. It allows users to define scalar functions of arbitrary dimensions (zero being a variable). Functions can be made static or dynamic meaning the change or remain when defined by another (changing) variable.

Roadmap

  • Add more (special) functions, distributions and operators
  • Add possibility for user to define custom operators
  • Improve help and documentation
  • Improvements / Bug fixes / Stability / Maintenance (the usual)
  • Your suggestion?

Building

To build run something like:

make

To debug:

make debug

This will print out some debug messages while parsing.

To test:

make test

This should print a bunch of ones and exit (otherwise file a bug report).

To clean run:

make clean

This will remove the compiled binary.

You can install by copying the compiled binary to your path.

Running

After compilation run something like:

./pallache 

Should get you started.

If you are lazy -- like me -- try:

rlwrap ./pallache

In order to see a list of built-in functions/variables/commands etc. type:

rlwrap ./pallache
>>> :help

or alternatively try:

./pallache --help

Acknowledgements