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require 'io/console'
require 'reline/version'
require 'reline/config'
require 'reline/key_actor'
require 'reline/key_stroke'
require 'reline/line_editor'
module Reline
extend self
FILENAME_COMPLETION_PROC = nil
USERNAME_COMPLETION_PROC = nil
HISTORY = Array.new
if RUBY_PLATFORM =~ /mswin|mingw/
require 'Win32API'
IS_WINDOWS = true
else
IS_WINDOWS = false
end
CursorPos = Struct.new(:x, :y)
class << self
attr_accessor :basic_quote_characters
attr_accessor :completer_quote_characters
attr_accessor :completer_word_break_characters
attr_reader :completion_append_character
attr_accessor :completion_case_fold
attr_accessor :filename_quote_characters
attr_writer :input
attr_writer :output
end
@@ambiguous_width = nil
@@config = nil
@basic_quote_characters = '"\''
@completer_quote_characters
@completer_word_break_characters = @basic_word_break_characters.dup
@completion_append_character
def self.completion_append_character=(val)
if val.nil?
@completion_append_character = nil
elsif val.size == 1
@completion_append_character = val
elsif val.size > 1
@completion_append_character = val[0]
else
@completion_append_character = val
end
end
@completion_case_fold
@filename_quote_characters
@@basic_word_break_characters = " \t\n`><=;|&{("
def self.basic_word_break_characters
@@basic_word_break_characters
end
def self.basic_word_break_characters=(v)
@@basic_word_break_characters = v
end
@@completion_proc = nil
def self.completion_proc
@@completion_proc
end
def self.completion_proc=(p)
@@completion_proc = p
end
@@dig_perfect_match_proc = nil
def self.dig_perfect_match_proc
@@dig_perfect_match_proc
end
def self.dig_perfect_match_proc=(p)
@@dig_perfect_match_proc = p
end
if IS_WINDOWS
require 'reline/windows'
else
require 'reline/ansi'
end
def retrieve_completion_block(line, byte_pointer)
break_regexp = /[#{Regexp.escape(@@basic_word_break_characters)}]/
before_pointer = line.byteslice(0, byte_pointer)
break_point = before_pointer.rindex(break_regexp)
if break_point
preposing = before_pointer[0..(break_point)]
block = before_pointer[(break_point + 1)..-1]
else
preposing = ''
block = before_pointer
end
postposing = line.byteslice(byte_pointer, line.bytesize)
[preposing, block, postposing]
end
def readmultiline(prompt = '', add_hist = false, &confirm_multiline_termination)
if block_given?
inner_readline(prompt, add_hist, true, &confirm_multiline_termination)
else
inner_readline(prompt, add_hist, true)
end
if add_hist and @line_editor.whole_buffer and @line_editor.whole_buffer.chomp.size > 0
Reline::HISTORY << @line_editor.whole_buffer
end
@line_editor.whole_buffer
end
def readline(prompt = '', add_hist = false)
inner_readline(prompt, add_hist, false)
if add_hist and @line_editor.line and @line_editor.line.chomp.size > 0
Reline::HISTORY << @line_editor.line.chomp
end
@line_editor.line
end
def inner_readline(prompt, add_hist, multiline, &confirm_multiline_termination)
if @@config.nil?
@@config = Reline::Config.new
@@config.read
end
otio = prep
may_req_ambiguous_char_width
@line_editor = Reline::LineEditor.new(@@config, prompt)
if multiline
@line_editor.multiline_on
if block_given?
@line_editor.confirm_multiline_termination_proc = confirm_multiline_termination
end
end
@line_editor.completion_proc = @@completion_proc
@line_editor.dig_perfect_match_proc = @@dig_perfect_match_proc
@line_editor.retrieve_completion_block = method(:retrieve_completion_block)
@line_editor.rerender
if IS_WINDOWS
config = {
key_mapping: {
[224, 72] => :ed_prev_history, # ↑
[224, 80] => :ed_next_history, # ↓
[224, 77] => :ed_next_char, # →
[224, 75] => :ed_prev_char # ←
}
}
else
config = {
key_mapping: {
[27, 91, 65] => :ed_prev_history, # ↑
[27, 91, 66] => :ed_next_history, # ↓
[27, 91, 67] => :ed_next_char, # →
[27, 91, 68] => :ed_prev_char # ←
}
}
end
key_stroke = Reline::KeyStroke.new(config)
begin
while c = getc
key_stroke.input_to!(c)&.then { |inputs|
inputs.each { |c|
@line_editor.input_key(c)
@line_editor.rerender
}
}
break if @line_editor.finished?
end
Reline.move_cursor_column(0)
rescue StandardError => e
deprep(otio)
raise e
end
deprep(otio)
end
def may_req_ambiguous_char_width
return if @@ambiguous_width
Reline.move_cursor_column(0)
print "\u{25bd}"
@@ambiguous_width = Reline.cursor_pos.x
Reline.move_cursor_column(0)
Reline.erase_after_cursor
end
def self.ambiguous_width
@@ambiguous_width
end
end
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