rpl.rb/lib/rpl/words/general.rb

# frozen_string_literal: true

module RplLang
  module Words
    module General
      include Types

      def populate_dictionary
        super

        @dictionary.add_word( ['nop'],
                              'General',
                              '( -- ) no operation',
                              proc {} )

        @dictionary.add_word( ['help'],
                              'General',
                              '( w -- s ) pop help string of the given word',
                              proc do
                                args = stack_extract( [[RplName]] )

                                word = @dictionary.words[ args[0].value ]

                                @stack << RplString.new( "\"#{args[0].value}: #{word.nil? ? 'not a core word' : word[:help]}\"" )
                              end )

        @dictionary.add_word( ['words'],
                              'REPL',
                              'DEBUG',
                              proc do
                                @dictionary.words
                                           .to_a
                                           .group_by { |word| word.last[:category] }
                                           .each do |cat, words|
                                  puts cat
                                  puts "    #{words.map { |word| word.first }.join(', ')}"
                                end
                              end )

        @dictionary.add_word( ['quit'],
                              'General',
                              '( -- ) Stop and quit interpreter',
                              proc {} )

        @dictionary.add_word( ['version'],
                              'General',
                              '( -- n ) Pop the interpreter\'s version number',
                              proc do
                                @stack += Parser.parse( @version.to_s )
                              end )

        @dictionary.add_word( ['uname'],
                              'General',
                              '( -- s ) Pop the interpreter\'s complete indentification string',
                              proc do
                                @stack += Parser.parse( "\"Rpl Interpreter version #{@version}\"" )
                              end )

        @dictionary.add_word( ['history'],
                              'REPL',
                              '',
                              proc {} )

        @dictionary.add_word( ['.s'],
                              'REPL',
                              'DEBUG',
                              proc { pp @stack } )

        @dictionary.add_word( ['.d'],
                              'REPL',
                              'DEBUG',
                              proc { pp @dictionary } )

        @dictionary.add_word( ['.v'],
                              'REPL',
                              'DEBUG',
                              proc { pp @dictionary.vars } )

        @dictionary.add_word( ['.lv'],
                              'REPL',
                              'DEBUG',
                              proc { pp @dictionary.local_vars_layers } )
      end
    end
  end
end