Module: Ripl::Rc::Multiline

Includes:
U
Defined in:
lib/ripl/rc/multiline.rb

Overview

from github.com/janlelis/ripl-multi_line

Constant Summary collapse

ERROR_REGEXP =

test those: ruby -e ‘“’ ruby -e ‘{’ ruby -e ‘[’ ruby -e ‘(’ ruby -e ‘class C’ ruby -e ‘def f’ ruby -e ‘begin’

Regexp.new(
[ # string
  "unterminated string meets end of file",
  # mri and rubinius
  "syntax error, unexpected \\$end",
  # rubinius
  "expecting '.+'( or '.+')*",
  # jruby
  "syntax error, unexpected end-of-file",
].join('|'))

Instance Method Summary collapse

Methods included from U

included

Methods included from SqueezeHistory::Imp

#squeeze_history

Methods included from StripBacktrace::Imp

#cwd, #home, #snip, #strip_backtrace

Methods included from Anchor::Imp

#short_inspect

Methods included from Color::Imp

#black, #blue, #color, #colors, #cyan, #find_color, #green, #magenta, #red, #reset, #white, #yellow

Instance Method Details

#before_loop ⇒ Object 



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# File 'lib/ripl/rc/multiline.rb', line 27

def before_loop
  return super if Multiline.disabled?
  @rc_multiline_buffer = []
  super
end

#handle_interrupt ⇒ Object 



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# File 'lib/ripl/rc/multiline.rb', line 73

def handle_interrupt
  return super if Multiline.disabled?
  if @rc_multiline_buffer.empty?
    super
  else
    line = @rc_multiline_buffer.pop
    if @rc_multiline_buffer.empty?
      super
    else
      puts "[removed this line: #{line}]"
      throw :rc_multiline_cont
    end
  end
end

#loop_eval(input) ⇒ Object 



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# File 'lib/ripl/rc/multiline.rb', line 61

def loop_eval(input)
  return super if Multiline.disabled?
  if @rc_multiline_buffer.empty?
    super
  else
    @rc_multiline_buffer << input
    history.pop
    history << "\n" + (str = @rc_multiline_buffer.join("\n"))
    super str
  end
end

#loop_once ⇒ Object 



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# File 'lib/ripl/rc/multiline.rb', line 42

def loop_once
  return super if Multiline.disabled?
  catch(:rc_multiline_cont) do
    super
    @rc_multiline_buffer.clear
  end
end

#print_eval_error(e) ⇒ Object 



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# File 'lib/ripl/rc/multiline.rb', line 50

def print_eval_error(e)
  return super if Multiline.disabled?
  if e.is_a?(SyntaxError) && e.message =~ ERROR_REGEXP
    @rc_multiline_buffer << @input if @rc_multiline_buffer.empty?
    history.pop
    throw :rc_multiline_cont
  else
    super
  end
end

#prompt ⇒ Object 



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# File 'lib/ripl/rc/multiline.rb', line 33

def prompt
  return super if Multiline.disabled?
  if @rc_multiline_buffer.empty?
    super
  else
    "#{' '*(@prompt.size-2)}| "
  end
end