!config
# Arara, the cool TeX automation tool
# Copyright (c) 2023, Island of TeX
# All rights reserved.
#
# This rule is part of arara.
identifier: metapost
name: Metapost
authors:
- Island of TeX
commands:
- name: Metapost
  command: >
    @{
        return getCommand('mpost', interaction, numbersystem,
               options, reference.fileName);
    }
arguments:
- identifier: interaction
  flag: >
    @{
        if ([ 'batchmode', 'nonstopmode', 'scrollmode',
              'errorstopmode' ].contains(parameters.interaction)) {
            return '-interaction='.concat(parameters.interaction);
        }
        else {
            throwError('The provided interaction value is not valid.');
        }
    }
- identifier: numbersystem
  flag: >
    @{
        if ([ 'scaled', 'double', 'binary',
              'decimal' ].contains(parameters.numbersystem)) {
            return '-numbersystem='.concat(parameters.numbersystem);
        }
        else {
            throwError('The provided numbersystem value is not valid.');
        }
    }
- identifier: options
  flag: >
    @{
        if (isList(parameters.options)) {
            return parameters.options;
        }
        else {
            throwError('I was expecting a list of options.');
        }
    }
