tompng

require 'pty'
require 'io/console'
if ARGV.empty?
  puts <<~EOS
    Reline Visualizer (Minimal terminal emulator that only supports Reline's escape sequences)
    Usage: ruby #{__FILE__} <command>'
    ruby #{__FILE__} irb
    ruby #{__FILE__} bash
    ruby #{__FILE__} zsh
    ruby #{__FILE__} ruby -I path/to/reline/lib -I path/to/irb/lib path/to/irb/exe/irb

tompng

raise 'COLORTERM required' unless ENV['COLORTERM']

# Color table from https://en.wikipedia.org/wiki/ANSI_escape_code#3-bit_and_4-bit
env_names = %w[VGA WinXP PowerShell6 VSCode Win10 Terminal.app PuTTY mIRC xterm Ubuntu Eclipse]
env_colors = <<COLORS.lines.map{|l|l.split(' ').map{_1.scan(/\d+/).join(';')}}.transpose
0,0,0 0,0,0 0,0,0 12,12,12 0,0,0 0,0,0 0,0,0 0,0,0 1,1,1 0,0,0
170,0,0 128,0,0 205,49,49 197,15,31 153,0,0 187,0,0 127,0,0 205,0,0 222,56,43 205,0,0
0,170,0 0,128,0 13,188,121 19,161,14 0,166,0 0,187,0 0,147,0 0,205,0 57,181,74 0,205,0
170,85,0 128,128,0 229,229,16 193,156,0 153,153,0 187,187,0 252,127,0 205,205,0 255,199,6 205,205,0
0,0,170 0,0,128 36,114,200 0,55,218 0,0,178 0,0,187 0,0,127 0,0,238 0,111,184 0,0,238

tompng

class << ($colored_stdout = STDOUT.dup)
  # Flip this if you are using bright theme
  BACKGROUND = [0, 0, 0]
  FOREGROUND = [255, 255, 255]

  RANDOMIZE_RANGE = -32..32

  def rand_color(rgb, bg: false)
    "#{bg ? 48 : 38};2;#{rgb.map { (_1 + rand(RANDOMIZE_RANGE)).clamp(0, 0xff) }.join(';')}"
  end

tompng

class TemrinationChecker
  def initialize
    @prelaunched = nil
    @code = ''
    @current = new_session
  end

  def new_session
    IO.popen(['ruby', '-c'], 'r+', err: [:child, :out])
  end

tompng

• 極端に長い行の貼り付け・編集などのパフォーマンスが悪い

  • 長い行数を貼り付けるよりも利用頻度高そう。jsonを貼り付けるとか。どこがボトルネックか測る

• Unicode

  • split_by_widthはheightを返す必要もないし配列の偶数番めにnilを含める必要もない
  • get_prev_mbchar とか、unicode.rbでやるべきことか怪しいような
  • get_nth_prev_mbchar とかにしないとvi_argが大きい場合のパフォーマンスが悪い
  • get_mbchar_widthの高速化をどこまでやるか(あと2段階くらい変身を残してる)効果がどれくらいあるか測る

• GeneralIO

tompng

class PseudoTerminalIO
  def initialize(fiber)
    @fiber = fiber
    @buffer = []
  end

  def close
    @buffer << nil
    @closed = true

tompng

def dump(s)
  dumped = s == eval("'#{s}'") && s !~ /[\C-a-\C-z]/ ? "'#{s}'" : s.dump.gsub(/\\x\d\d/){
    "\\C-"+('a'.ord + _1[2..].to_i(16) - 1).chr
  }
  if dumped =~ /\u3099/
    dumped.gsub!("\u3099", "\\u3099")
    dumped = ?" + dumped[1...-1] + ?" if dumped[0] == ?'
  end
  dumped
end

tompng

class Generator
  def generate_paren(level)
    regexp, producer = multi(level - 1)
    [['(', '(?:', '(?<a>'].sample + regexp + ')', producer]
  end

  ALPHABET = ('a'..'z').to_a

  def generate_alphabet(_level)
    c = ALPHABET.sample

tompng

require 'matrix'
module RegexpMatrixSolver
  refine Array do
    def ~
      keys = map(&:first).flat_map(&:keys).uniq
      matrix = []
      binding = first.last
      vec = map{_2}
      each do |values, rhs|
        matrix << keys.map { values[_1] || 0 }

tompng

def run
  $VERBOSE=nil
  tokens = %w[1 + * ** a in ( ) [ ] = . .. => <<]
  cnt = 0
  output = {}
  (2..8).each do |n|
    cnt = 0
    tokens.repeated_permutation(n).each do |tokens|
      code = tokens.join('') # or join(' ')
      # Ruby's bug already fixed in 3.3