3 releases
Uses old Rust 2015
0.1.2 | Dec 26, 2017 |
---|---|
0.1.1 | Dec 21, 2017 |
0.1.0 | Dec 21, 2017 |
#155 in #syntax-tree
34KB
560 lines
rcalc
rcalc
is a glorified calculator written in Rust that incorporates the
fundamentals of building any programming language, including a
lexer, parser,
Abstract Syntax Tree, and
AST traverser.
Try it
git clone https://github.com/ayazhafiz/rcalc.git && cd rcalc
make # places rcalc in /usr/bin/local
rcalc # launches interactive shell
$ rcalc> ...
Features
Currently, rcalc
supports
- Addition, subtraction, multiplication, division
- Floating-point (fractional) exponentiation
- Unary Operators
- Accepted operand precedence
- An interactive shell for computation
Todo
-
CLI
Access to input history -
CLI
Hiding of control characters -
LOGIC
Integer division -
LOGIC
Modulo operator -
LOGIC
Factorial operator -
LOGIC
Trigonometric functions -
OTHER
More to come!
Structure
rcalc
is both a binary and a library. This makes
it trivial to use the rcalc
library in any other application.
The library is hosted under one namespace, with separate modules for independent components of the calculator "interpreter".
The binary is entirely dependent on the library.
Why?
I was interested in learning (1) Rust and (2) how to create a programming language. I started off with Ruslan Spivak's tutorial on the latter matter, eventually deciding to work a bit more on his calculator application in the pursuit of making something fairly formidable and original in Rust. This repository is the result of that effort. Hopefully, the quality of Rust code in this application will reflect my progressive improvement in the language.
Dependencies
~2.5MB
~52K SLoC