--- a/lib/rasel_gem/bin/rasel	Sun Aug 01 02:47:07 2021 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,5 +0,0 @@
-#!/usr/bin/env ruby
-Signal.trap(:INT){ abort "\n(interrupted by SIGINT)" }
-
-require_relative "../lib/rasel"
-exit RASEL(ARGF.read, STDOUT).exitcode

--- a/lib/rasel_gem/lib/rasel.rb	Sun Aug 01 02:47:07 2021 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,91 +0,0 @@
-Encoding::default_internal = Encoding::default_external = "ASCII-8BIT"
-END { RubyProf::FlatPrinter.new(RubyProf.stop).print STDERR, min_percent: 1 } if ENV["PROFILE"]
-
-def RASEL source, stdout = StringIO.new, stdin = STDIN
-  lines = source.tap{ |_| fail "empty source" if _.empty? }.gsub(/ +$/,"").split(?\n)
-  code = lines.map{ |_| _.ljust(lines.map(&:size).max).bytes }
-  stack = []
-  pop = ->{ stack.pop || 0r }
-  dx, dy = 1, 0
-  x, y = -1, 0
-
-  history = {}
-  move = lambda do
-    y = (y + dy) % code.size
-    x = (x + dx) % code[y].size
-    next unless ENV.key?("DEBUG_HISTORY") && code[y][x] == 32
-    history[[x, y]] ||= 0
-    history[[x, y]] += 1
-  end
-  time = Time.now
-  thread = Thread.new do
-    loop do
-      unless Time.now < time + 1
-        time += 1
-        p history.sort_by(&:last).last(10)
-      end
-      sleep 0.1
-    end
-  end if ENV.key? "DEBUG_HISTORY"
-  if ENV["PROFILE"]
-    require "ruby-prof"
-    RubyProf.start
-  end
-
-  reverse = ->{ dy, dx = -dy, -dx }
-  stringmode = false
-  error = Proc.new{ return Struct.new(:stdout, :stack, :exitcode).new stdout, stack, 255 }
-  loop do
-    move[]
-    byte = code[y][x]
-    char = byte.chr
-    STDERR.puts [char, stringmode, (stack.last Integer ENV["DEBUG"] rescue stack)].inspect if ENV.key? "DEBUG"
-
-    next stack.push byte if stringmode && char != ?"
-    return Struct.new(:stdout, :stack, :exitcode).new stdout, stack, (
-      t = pop[]
-      1 != t.denominator || t < 0 || t > 255 ? 255 : t.to_i
-    ) if char == ?@
-    case char
-      when ?\s
-
-      when ?0..?9, ?A..?Z ; stack.push char.to_i(36).to_r
-      when ?" ; stringmode ^= true
-      when ?# ; move[]
-      when ?$ ; pop[]
-      when ?: ; stack.concat [pop[]] * 2
-      when ?- ; stack.push -(pop[] - pop[])
-      when ?\\ ; stack.concat [pop[], pop[]]
-      when ?/ ; b, a = pop[], pop[]; stack.push (b.zero? ? 0 : a / b)
-      when ?% ; b, a = pop[], pop[]; stack.push (b.zero? ? 0 : a % b)
-      when ?v ; dx, dy =  0,  1
-      when ?> ; dx, dy =  1,  0
-      when ?^ ; dx, dy =  0, -1
-      when ?< ; dx, dy = -1,  0
-      when ?? ; move[] if pop[] > 0
-      when ?a
-        t = pop[]
-        error[] if 0 > t || 1 != t.denominator
-        stack.push t.zero? ? 0 : stack[-t] || 0
-      when ?. ; stdout.print "#{_ = pop[]; 1 != _.denominator ? _.to_f : _.to_i} "
-      when ?, ; stdout.print "#{_ = pop[]; 1 != _.denominator ? error[] : _ < 0 || _ > 255 ? error[] : _.to_i.chr}"
-      when ?~ ; if _ = stdin.getbyte then stack.push _; move[] end
-      when ?&
-        getc = ->{ stdin.getc or throw nil }
-        catch nil do
-          nil until (?0..?9).include? c = getc[]
-          while (?0..?9).include? cc = stdin.getc ; c << cc end
-          stdin.ungetbyte cc if cc
-          stack.push c.to_i
-          move[]
-        end
-      when ?j
-        t = pop[]
-        error[] if 1 != t.denominator
-        y = (y + dy * t.to_i) % code.size
-        x = (x + dx * t.to_i) % code[y].size
-
-      else ; error[]
-    end
-  end
-end