BasicObject
# File reline/ansi.rb, line 303 def self.clear_screen @@output.write "\e[2J" @@output.write "\e[1;1H" end
# File reline/ansi.rb, line 223 def self.cursor_pos begin res = +'' m = nil @@input.raw do |stdin| @@output << "\e[6n" @@output.flush loop do c = stdin.getc next if c.nil? res << c m = res.match(/\e\[(?<row>\d+);(?<column>\d+)R/) break if m end (m.pre_match + m.post_match).chars.reverse_each do |ch| stdin.ungetc ch end end column = m[:column].to_i - 1 row = m[:row].to_i - 1 rescue Errno::ENOTTY begin buf = @@output.pread(@@output.pos, 0) row = buf.count("\n") column = buf.rindex("\n") ? (buf.size - buf.rindex("\n")) - 1 : 0 rescue Errno::ESPIPE # Just returns column 1 for ambiguous width because this I/O is not # tty and can't seek. row = 0 column = 1 end end Reline::CursorPos.new(column, row) end
# File reline/ansi.rb, line 318 def self.deprep(otio) int_handle = Signal.trap('INT', 'IGNORE') Signal.trap('INT', int_handle) Signal.trap('WINCH', @@old_winch_handler) if @@old_winch_handler end
# File reline/ansi.rb, line 184 def self.empty_buffer? unless @@buf.empty? return false end !@@input.wait_readable(0) end
# File reline/ansi.rb, line 294 def self.erase_after_cursor @@output.write "\e[K" end
# File reline/ansi.rb, line 206 def self.get_screen_size s = @@input.winsize return s if s[0] > 0 && s[1] > 0 s = [ENV["LINES"].to_i, ENV["COLUMNS"].to_i] return s if s[0] > 0 && s[1] > 0 [24, 80] rescue Errno::ENOTTY [24, 80] end
# File reline/ansi.rb, line 172 def self.getc if Reline.core.config.enable_bracketed_paste getc_with_bracketed_paste else inner_getc end end
# File reline/ansi.rb, line 278 def self.hide_cursor if Reline::Terminfo.enabled? @@output.write Reline::Terminfo.tigetstr('civis') else # ignored end end
# File reline/ansi.rb, line 180 def self.in_pasting? @@in_bracketed_paste_mode or (not Reline::IOGate.empty_buffer?) end
# File reline/ansi.rb, line 258 def self.move_cursor_column(x) @@output.write "\e[#{x + 1}G" end
# File reline/ansi.rb, line 270 def self.move_cursor_down(x) if x > 0 @@output.write "\e[#{x}B" if x > 0 elsif x < 0 move_cursor_up(-x) end end
# File reline/ansi.rb, line 262 def self.move_cursor_up(x) if x > 0 @@output.write "\e[#{x}A" if x > 0 elsif x < 0 move_cursor_down(-x) end end
# File reline/ansi.rb, line 313 def self.prep retrieve_keybuffer nil end
# File reline/ansi.rb, line 195 def self.retrieve_keybuffer begin return unless @@input.wait_readable(0.001) str = @@input.read_nonblock(1024) str.bytes.each do |c| @@buf.push(c) end rescue EOFError end end
# File reline/ansi.rb, line 298 def self.scroll_down(x) return if x.zero? @@output.write "\e[#{x}S" end
# File reline/ansi.rb, line 216 def self.set_screen_size(rows, columns) @@input.winsize = [rows, columns] self rescue Errno::ENOTTY self end
# File reline/ansi.rb, line 309 def self.set_winch_handler(&handler) @@old_winch_handler = Signal.trap('WINCH', &handler) end
# File reline/config.rb, line 176 def add_default_key_binding(keystroke, target) @key_actors[@keymap_label].default_key_bindings[keystroke] = target end
# File reline/config.rb, line 172 def add_default_key_binding_by_keymap(keymap, keystroke, target) @key_actors[keymap].default_key_bindings[keystroke] = target end
# File reline/config.rb, line 164 def add_oneshot_key_binding(keystroke, target) @oneshot_key_bindings[keystroke] = target end
# File reline/config.rb, line 335 def bind_key(key, func_name) if key =~ /\A"(.*)"\z/ keyseq = parse_keyseq($1) else keyseq = nil end if func_name =~ /"(.*)"/ func = parse_keyseq($1) else func = func_name.tr(?-, ?_).to_sym # It must be macro. end [keyseq, func] end
# File reline/config.rb, line 263 def bind_variable(name, value) case name when 'history-size' begin @history_size = Integer(value) rescue ArgumentError @history_size = 500 end when 'bell-style' @bell_style = case value when 'none', 'off' :none when 'audible', 'on' :audible when 'visible' :visible else :audible end when 'comment-begin' @comment_begin = value.dup when 'completion-query-items' @completion_query_items = value.to_i when 'isearch-terminators' @isearch_terminators = retrieve_string(value) when 'editing-mode' case value when 'emacs' @editing_mode_label = :emacs @keymap_label = :emacs when 'vi' @editing_mode_label = :vi_insert @keymap_label = :vi_insert end when 'keymap' case value when 'emacs', 'emacs-standard', 'emacs-meta', 'emacs-ctlx' @keymap_label = :emacs when 'vi', 'vi-move', 'vi-command' @keymap_label = :vi_command when 'vi-insert' @keymap_label = :vi_insert end when 'keyseq-timeout' @keyseq_timeout = value.to_i when 'show-mode-in-prompt' case value when 'off' @show_mode_in_prompt = false when 'on' @show_mode_in_prompt = true else @show_mode_in_prompt = false end when 'vi-cmd-mode-string' @vi_cmd_mode_string = retrieve_string(value) when 'vi-ins-mode-string' @vi_ins_mode_string = retrieve_string(value) when 'emacs-mode-string' @emacs_mode_string = retrieve_string(value) when *VARIABLE_NAMES then variable_name = :"@#{name.tr(?-, ?_)}" instance_variable_set(variable_name, value.nil? || value == '1' || value == 'on') end end
# File reline/config.rb, line 233 def handle_directive(directive, file, no) directive, args = directive.split(' ') case directive when 'if' condition = false case args when 'mode' when 'term' when 'version' else # application name condition = true if args == 'Ruby' condition = true if args == 'Reline' end @if_stack << [file, no, @skip_section] @skip_section = !condition when 'else' if @if_stack.empty? raise InvalidInputrc, "#{file}:#{no}: unmatched else" end @skip_section = !@skip_section when 'endif' if @if_stack.empty? raise InvalidInputrc, "#{file}:#{no}: unmatched endif" end @skip_section = @if_stack.pop when 'include' read(args) end end
# File reline/config.rb, line 156 def key_bindings # The key bindings for each editing mode will be overwritten by the user-defined ones. kb = @key_actors[@editing_mode_label].default_key_bindings.dup kb.merge!(@additional_key_bindings[@editing_mode_label]) kb.merge!(@oneshot_key_bindings) kb end
# File reline/config.rb, line 349 def key_notation_to_code(notation) case notation when /\(?:C|Control)-([A-Za-z_])/ (1 + $1.downcase.ord - ?a.ord) when /\(?:M|Meta)-([0-9A-Za-z_])/ modified_key = $1 case $1 when /[0-9]/ ?\M-0.bytes.first + (modified_key.ord - ?0.ord) when /[A-Z]/ ?\M-A.bytes.first + (modified_key.ord - ?A.ord) when /[a-z]/ ?\M-a.bytes.first + (modified_key.ord - ?a.ord) end when /\(?:C|Control)-(?:M|Meta)-[A-Za-z_]/, /\(?:M|Meta)-(?:C|Control)-[A-Za-z_]/ # 129 M-^A when /\(\d{1,3})/ then $1.to_i(8) # octal when /\x(\h{1,2})/ then $1.to_i(16) # hexadecimal when "\\e" then ?\e.ord when "\\\\" then ?\\.ord when "\\\"" then ?".ord when "\\'" then ?'.ord when "\\a" then ?\a.ord when "\\b" then ?\b.ord when "\\d" then ?\d.ord when "\\f" then ?\f.ord when "\\n" then ?\n.ord when "\\r" then ?\r.ord when "\\t" then ?\t.ord when "\\v" then ?\v.ord else notation.ord end end
# File reline/config.rb, line 383 def parse_keyseq(str) ret = [] str.scan(KEYSEQ_PATTERN) do ret << key_notation_to_code($&) end ret end
# File reline/config.rb, line 137 def read(file = nil) file ||= default_inputrc_path begin if file.respond_to?(:readlines) lines = file.readlines else lines = File.readlines(file) end rescue Errno::ENOENT return nil end read_lines(lines, file) self rescue InvalidInputrc => e warn e.message nil end
# File reline/config.rb, line 186 def read_lines(lines, file = nil) if not lines.empty? and lines.first.encoding != Reline.encoding_system_needs begin lines = lines.map do |l| l.encode(Reline.encoding_system_needs) rescue Encoding::UndefinedConversionError mes = "The inputrc encoded in #{lines.first.encoding.name} can't be converted to the locale #{Reline.encoding_system_needs.name}." raise Reline::ConfigEncodingConversionError.new(mes) end end end conditions = [@skip_section, @if_stack] @skip_section = nil @if_stack = [] lines.each_with_index do |line, no| next if line.match(/\A\s*#/) no += 1 line = line.chomp.lstrip if line.start_with?('$') handle_directive(line[1..-1], file, no) next end next if @skip_section case line when /^set +([^ ]+) +([^ ]+)/i var, value = $1.downcase, $2 bind_variable(var, value) next when /\s*("#{KEYSEQ_PATTERN}+")\s*:\s*(.*)\s*$/o key, func_name = $1, $2 keystroke, func = bind_key(key, func_name) next unless keystroke @additional_key_bindings[@keymap_label][keystroke] = func end end unless @if_stack.empty? raise InvalidInputrc, "#{file}:#{@if_stack.last[1]}: unclosed if" end ensure @skip_section, @if_stack = conditions end
# File reline/config.rb, line 180 def reset_default_key_bindings @key_actors.values.each do |ka| ka.reset_default_key_bindings end end