class Brainfuck

Constants

BLOCKS

Public Class Methods

bf_mapping() click to toggle source

# File lib/fxxk_gen.rb, line 9
def self.bf_mapping
    @bf_operations ||= {nxt: '>', prv: '<', inc: '+', dec: '-', put: '.',  get: ',', opn: '[', cls: ']' }
end

default_mapping() click to toggle source

# File lib/fxxk_gen.rb, line 13
def self.default_mapping
    @default_mapping ||= bf_mapping.clone
end

new() click to toggle source

# File lib/fxxk_gen.rb, line 6
def initialize
end

Public Instance Methods

generate(text) click to toggle source

# File lib/fxxk_gen.rb, line 17
def generate(text)
    result = ""
    prev_char_code = 0

    text.chars.each_with_index do |c, i|
        char_code = c.ord
        gap = char_code - prev_char_code

        division = { quotient: gap.abs / BLOCKS, reminder: gap.abs % BLOCKS }

        if division[:quotient] != 0 && i > 0 then
            result += self.class.default_mapping[:prv]
        end

        mark = gap < 0 ? self.class.default_mapping[:dec] : self.class.default_mapping[:inc]
        result += optimize(division, mark)

        prev_char_code  = char_code
    end

    return result
end

optimize(division, mark) click to toggle source

# File lib/fxxk_gen.rb, line 40
def optimize(division, mark)
    result = ""

    if division[:quotient] == 0 then
        division[:reminder].times do
            result += mark
        end
        result += self.class.default_mapping[:put]
    else
        BLOCKS.times do
            result += self.class.default_mapping[:inc]
        end
        result += (self.class.default_mapping[:opn] + self.class.default_mapping[:nxt])
        division[:quotient].times do
            result += mark
        end
        result += (self.class.default_mapping[:prv] + self.class.default_mapping[:dec] + self.class.default_mapping[:cls] + self.class.default_mapping[:nxt])
        division[:reminder].times do
            result += mark
        end
        result += self.class.default_mapping[:put]
    end

    return result
end