Command line tool for running Shen repl.

It loads ~/.shen.shen initialization file. Which is convenient for modulesys users. It can execute Shen scripts allowing them to access command line arguments. Error output is written to stderr.

Installing

For each shen implementation you can build separate version of shen_run. If you want to build shen_run for shen-clisp then

mkdir clisp
cp config.def.h clisp/config.h.

Edit clisp/config.h to match your configuration. Then type

make impl=clisp

to build shen_run_clisp.

Using

Your script must have entry function main which accepts command line parameters in one argument of type (list string) and returns a boolean indicating success status. You can run that script either by typing

shen_run your_script.shen argument1 argument2 ...

Or you can add a line

#!/usr/bin/env shen_run

at the first line of your script and make file executable

chmod +x your_script.shen

Then you can run it as any other program:

./your_script.shen argument1 argument2 ...

Example

#!/usr/bin/env shen_run

(define show-args
  [] _ -> _
  [X | R] I -> (let - (output "  ~A: ~S~%" I X)
                  (show-args R (+ I 1))))

(define main
  [] -> (error "Not enough arguments.")
  ["-preved" | _] -> false
  Args -> (let - (output "Arguments~%")
               - (show-args Args 0)
               - (output "End~%")
            true))