class Reline::Core

# File lib/reline.rb, line 68
def initialize
  self.output = STDOUT
  @mutex = Mutex.new
  @dialog_proc_list = {}
  yield self
  @completion_quote_character = nil
end

# File lib/reline.rb, line 162
def add_dialog_proc(name_sym, p, context = nil)
  raise ArgumentError unless name_sym.instance_of?(Symbol)
  if p.nil?
    @dialog_proc_list.delete(name_sym)
  else
    raise ArgumentError unless p.respond_to?(:call)
    @dialog_proc_list[name_sym] = DialogProc.new(p, context)
  end
end

# File lib/reline.rb, line 409
def ambiguous_width
  may_req_ambiguous_char_width unless defined? @ambiguous_width
  @ambiguous_width
end

# File lib/reline.rb, line 147
def auto_indent_proc=(p)
  raise ArgumentError unless p.respond_to?(:call) or p.nil?
  @auto_indent_proc = p
end

# File lib/reline.rb, line 104
def basic_quote_characters=(v)
  @basic_quote_characters = v.encode(encoding)
end

# File lib/reline.rb, line 96
def basic_word_break_characters=(v)
  @basic_word_break_characters = v.encode(encoding)
end

# File lib/reline.rb, line 108
def completer_quote_characters=(v)
  @completer_quote_characters = v.encode(encoding)
end

# File lib/reline.rb, line 100
def completer_word_break_characters=(v)
  @completer_word_break_characters = v.encode(encoding)
end

# File lib/reline.rb, line 84
def completion_append_character=(val)
  if val.nil?
    @completion_append_character = nil
  elsif val.size == 1
    @completion_append_character = val.encode(encoding)
  elsif val.size > 1
    @completion_append_character = val[0].encode(encoding)
  else
    @completion_append_character = nil
  end
end

# File lib/reline.rb, line 124
def completion_case_fold
  @config.completion_ignore_case
end

# File lib/reline.rb, line 120
def completion_case_fold=(v)
  @config.completion_ignore_case = v
end

# File lib/reline.rb, line 132
def completion_proc=(p)
  raise ArgumentError unless p.respond_to?(:call) or p.nil?
  @completion_proc = p
end

# File lib/reline.rb, line 128
def completion_quote_character
  @completion_quote_character
end

# File lib/reline.rb, line 172
def dialog_proc(name_sym)
  @dialog_proc_list[name_sym]
end

# File lib/reline.rb, line 156
def dig_perfect_match_proc=(p)
  raise ArgumentError unless p.respond_to?(:call) or p.nil?
  @dig_perfect_match_proc = p
end

# File lib/reline.rb, line 194
def emacs_editing_mode
  config.editing_mode = :emacs
  nil
end

# File lib/reline.rb, line 203
def emacs_editing_mode?
  config.editing_mode_is?(:emacs)
end

# File lib/reline.rb, line 80
def encoding
  io_gate.encoding
end

# File lib/reline.rb, line 112
def filename_quote_characters=(v)
  @filename_quote_characters = v.encode(encoding)
end

# File lib/reline.rb, line 207
def get_screen_size
  io_gate.get_screen_size
end

# File lib/reline.rb, line 176
def input=(val)
  raise TypeError unless val.respond_to?(:getc) or val.nil?
  if val.respond_to?(:getc) && io_gate.respond_to?(:input=)
    io_gate.input = val
  end
end

# File lib/reline.rb, line 76
def io_gate
  Reline::IOGate
end

# File lib/reline.rb, line 183
def output=(val)
  raise TypeError unless val.respond_to?(:write) or val.nil?
  @output = val
  io_gate.output = val
end

# File lib/reline.rb, line 137
def output_modifier_proc=(p)
  raise ArgumentError unless p.respond_to?(:call) or p.nil?
  @output_modifier_proc = p
end

# File lib/reline.rb, line 152
def pre_input_hook=(p)
  @pre_input_hook = p
end

# File lib/reline.rb, line 142
def prompt_proc=(p)
  raise ArgumentError unless p.respond_to?(:call) or p.nil?
  @prompt_proc = p
end

# File lib/reline.rb, line 276
def readline(prompt = '', add_hist = false)
  @mutex.synchronize do
    io_gate.with_raw_input do
      inner_readline(prompt, add_hist, false)
    end

    line = line_editor.line.dup
    line.taint if RUBY_VERSION < '2.7'
    if add_hist and line and line.chomp("\n").size > 0
      Reline::HISTORY << line.chomp("\n")
    end

    line_editor.reset_line if line_editor.line.nil?
    line
  end
end

# File lib/reline.rb, line 250
def readmultiline(prompt = '', add_hist = false, &confirm_multiline_termination)
  @mutex.synchronize do
    unless confirm_multiline_termination
      raise ArgumentError.new('#readmultiline needs block to confirm multiline termination')
    end

    io_gate.with_raw_input do
      inner_readline(prompt, add_hist, true, &confirm_multiline_termination)
    end

    whole_buffer = line_editor.whole_buffer.dup
    whole_buffer.taint if RUBY_VERSION < '2.7'
    if add_hist and whole_buffer and whole_buffer.chomp("\n").size > 0
      Reline::HISTORY << whole_buffer
    end

    if line_editor.eof?
      line_editor.reset_line
      # Return nil if the input is aborted by C-d.
      nil
    else
      whole_buffer
    end
  end
end

# File lib/reline.rb, line 116
def special_prefixes=(v)
  @special_prefixes = v.encode(encoding)
end

# File lib/reline.rb, line 189
def vi_editing_mode
  config.editing_mode = :vi_insert
  nil
end

# File lib/reline.rb, line 199
def vi_editing_mode?
  config.editing_mode_is?(:vi_insert, :vi_command)
end

# File lib/reline.rb, line 293
        def inner_readline(prompt, add_hist, multiline, &confirm_multiline_termination)
  if ENV['RELINE_STDERR_TTY']
    if io_gate.win?
      $stderr = File.open(ENV['RELINE_STDERR_TTY'], 'a')
    else
      $stderr.reopen(ENV['RELINE_STDERR_TTY'], 'w')
    end
    $stderr.sync = true
    $stderr.puts "Reline is used by #{Process.pid}"
  end
  unless config.test_mode or config.loaded?
    config.read
    io_gate.set_default_key_bindings(config)
  end
  otio = io_gate.prep

  may_req_ambiguous_char_width
  key_stroke.encoding = encoding
  line_editor.reset(prompt)
  if multiline
    line_editor.multiline_on
    if block_given?
      line_editor.confirm_multiline_termination_proc = confirm_multiline_termination
    end
  else
    line_editor.multiline_off
  end
  line_editor.completion_proc = completion_proc
  line_editor.completion_append_character = completion_append_character
  line_editor.output_modifier_proc = output_modifier_proc
  line_editor.prompt_proc = prompt_proc
  line_editor.auto_indent_proc = auto_indent_proc
  line_editor.dig_perfect_match_proc = dig_perfect_match_proc

  # Readline calls pre_input_hook just after printing the first prompt.
  line_editor.print_nomultiline_prompt
  pre_input_hook&.call

  unless Reline::IOGate.dumb?
    @dialog_proc_list.each_pair do |name_sym, d|
      line_editor.add_dialog_proc(name_sym, d.dialog_proc, d.context)
    end
  end

  line_editor.update_dialogs
  line_editor.rerender

  begin
    line_editor.set_signal_handlers
    loop do
      read_io(config.keyseq_timeout) { |inputs|
        line_editor.set_pasting_state(io_gate.in_pasting?)
        inputs.each do |key|
          case key.method_symbol
          when :bracketed_paste_start
            # io_gate is Reline::ANSI because the key :bracketed_paste_start is only assigned in Reline::ANSI
            key = Reline::Key.new(io_gate.read_bracketed_paste, :insert_multiline_text)
          when :quoted_insert, :ed_quoted_insert
            key = Reline::Key.new(io_gate.read_single_char(config.keyseq_timeout), :insert_raw_char)
          end
          line_editor.update(key)
        end
      }
      if line_editor.finished?
        line_editor.render_finished
        break
      else
        line_editor.set_pasting_state(io_gate.in_pasting?)
        line_editor.rerender
      end
    end
    io_gate.move_cursor_column(0)
  rescue Errno::EIO
    # Maybe the I/O has been closed.
  ensure
    line_editor.finalize
    io_gate.deprep(otio)
  end
end

# File lib/reline.rb, line 414
        def may_req_ambiguous_char_width
  @ambiguous_width = 1 if io_gate.dumb? || !STDIN.tty? || !STDOUT.tty?
  return if defined? @ambiguous_width
  io_gate.move_cursor_column(0)
  begin
    output.write "\u{25bd}"
  rescue Encoding::UndefinedConversionError
    # LANG=C
    @ambiguous_width = 1
  else
    @ambiguous_width = io_gate.cursor_pos.x == 2 ? 2 : 1
  end
  io_gate.move_cursor_column(0)
  io_gate.erase_after_cursor
end

# File lib/reline.rb, line 379
        def read_io(keyseq_timeout, &block)
  buffer = []
  status = KeyStroke::MATCHING
  loop do
    timeout = status == KeyStroke::MATCHING_MATCHED ? keyseq_timeout.fdiv(1000) : Float::INFINITY
    c = io_gate.getc(timeout)
    if c.nil? || c == -1
      if status == KeyStroke::MATCHING_MATCHED
        status = KeyStroke::MATCHED
      elsif buffer.empty?
        # io_gate is closed and reached EOF
        block.call([Key.new(nil, nil, false)])
        return
      else
        status = KeyStroke::UNMATCHED
      end
    else
      buffer << c
      status = key_stroke.match_status(buffer)
    end

    if status == KeyStroke::MATCHED || status == KeyStroke::UNMATCHED
      expanded, rest_bytes = key_stroke.expand(buffer)
      rest_bytes.reverse_each { |c| io_gate.ungetc(c) }
      block.call(expanded)
      return
    end
  end
end