reple 0.1.0.1

"replay-based" REPL for compiled languages

reple

Interactive REPL for executable-based software toolchains.

Ever wished you could have an interpreter for your executable-based compiled language toolchains? reple simulates an interpreter to create a REPL for you. Each time you enter a command, reple compiles and runs your program, printing out any new input.

The advantage to this approach is that reple only requires a simple config file to create a REPL for a new language or executable-based runtime system. If your language or runtime system is not available, adding it will likely only take a few minutes!

Installation

To install reple, just clone the Git repo. We recommend you then chmod our Python script to make it runnable and add its directory to your PATH.

[xiii@reple src]$ git clone https://github.com/BenBrock/reple.git
[xiii@reple src]$ chmod a+x reple/reple.py
[xiii@reple src]$ echo "export PATH=\$PATH:$PWD/reple" >> ~/.bashrc

Dependencies

reple requires prompt_toolkit and pygments, which you can install through your favorite Python package management system.

Running

To start an interactive REPL session, call reple.py with the title of a configuration file defined in the /configs directory.

[xiii@reple xiii]$ reple.py -env cxx
> printf("Hello, world!\n");
Hello, world!
> int x = 12;
> int y = x + 2;
> std::cout << y << std::endl;
14
>

Some more complicated runtimes, like MPI, may have optional runtime flags.

[xiii@reple home]$ reple.py -env mpicxx --rargs "-n 8"
> int rank, nprocs;
> MPI_Comm_rank(MPI_COMM_WORLD, &rank);
> MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
> printf("Hello, world! I'm %d/%d\n", rank, nprocs);
Hello, world! I'm 0/8
Hello, world! I'm 1/8
Hello, world! I'm 2/8
Hello, world! I'm 4/8
Hello, world! I'm 6/8
Hello, world! I'm 3/8
Hello, world! I'm 5/8
Hello, world! I'm 7/8
>