!config
# Arara, the cool TeX automation tool
# Copyright (c) 2023, Island of TeX
# All rights reserved.
#
# This rule is part of arara.
identifier: xindex
name: xindex
authors:
- Island of TeX
commands:
- name: The xindex software
  command: >
    @{
        return getCommand('xindex', config, language, options, input);
    }
arguments:
- identifier: input
  flag: >
    @{
        return parameters.input;
    }
- identifier: config
  flag: >
    @{
        return [ '-c', isEmpty(parameters.config, 'cfg', parameters.config) ];
    }
  default: ''
- identifier: language
  flag: >
    @{
        return [ '-l', isEmpty(parameters.language, 'en', parameters.language) ];
    }
  default: ''
- identifier: options
  flag: >
    @{
        if (isList(parameters.options)) {
            return parameters.options;
        } else {
            throwError('I was expecting a list of options.');
        }
    }
