class Reline::Config
Constants
- KEYSEQ_PATTERN
- VARIABLE_NAMES
- VARIABLE_NAME_SYMBOLS
Attributes
autocompletion[RW]
test_mode[R]
Public Class Methods
new()
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# File reline/config.rb, line 31 def initialize @additional_key_bindings = {} # from inputrc @additional_key_bindings[:emacs] = {} @additional_key_bindings[:vi_insert] = {} @additional_key_bindings[:vi_command] = {} @oneshot_key_bindings = {} @editing_mode_label = :emacs @keymap_label = :emacs @keymap_prefix = [] @key_actors = {} @key_actors[:emacs] = Reline::KeyActor::Emacs.new @key_actors[:vi_insert] = Reline::KeyActor::ViInsert.new @key_actors[:vi_command] = Reline::KeyActor::ViCommand.new @vi_cmd_mode_string = '(cmd)' @vi_ins_mode_string = '(ins)' @emacs_mode_string = '@' # https://tiswww.case.edu/php/chet/readline/readline.html#IDX25 @history_size = -1 # unlimited @keyseq_timeout = 500 @test_mode = false @autocompletion = false @convert_meta = true if seven_bit_encoding?(Reline::IOGate.encoding) @loaded = false @enable_bracketed_paste = true end
Public Instance Methods
add_default_key_binding(keystroke, target)
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# File reline/config.rb, line 154 def add_default_key_binding(keystroke, target) @key_actors[@keymap_label].default_key_bindings[keystroke] = target end
add_default_key_binding_by_keymap(keymap, keystroke, target)
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# File reline/config.rb, line 150 def add_default_key_binding_by_keymap(keymap, keystroke, target) @key_actors[keymap].default_key_bindings[keystroke] = target end
add_oneshot_key_binding(keystroke, target)
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# File reline/config.rb, line 142 def add_oneshot_key_binding(keystroke, target) @oneshot_key_bindings[keystroke] = target end
bind_key(key, func_name)
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# File reline/config.rb, line 320 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
bind_variable(name, value)
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# File reline/config.rb, line 237 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 @keymap_prefix = [] when 'vi' @editing_mode_label = :vi_insert @keymap_label = :vi_insert @keymap_prefix = [] end when 'keymap' case value when 'emacs', 'emacs-standard' @keymap_label = :emacs @keymap_prefix = [] when 'emacs-ctlx' @keymap_label = :emacs @keymap_prefix = [?\C-x.ord] when 'emacs-meta' @keymap_label = :emacs @keymap_prefix = [?\e.ord] when 'vi', 'vi-move', 'vi-command' @keymap_label = :vi_command @keymap_prefix = [] when 'vi-insert' @keymap_label = :vi_insert @keymap_prefix = [] 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
editing_mode()
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# File reline/config.rb, line 64 def editing_mode @key_actors[@editing_mode_label] end
editing_mode=(val)
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# File reline/config.rb, line 68 def editing_mode=(val) @editing_mode_label = val end
editing_mode_is?(*val)
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# File reline/config.rb, line 72 def editing_mode_is?(*val) val.any?(@editing_mode_label) end
handle_directive(directive, file, no, if_stack)
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# File reline/config.rb, line 202 def handle_directive(directive, file, no, if_stack) directive, args = directive.split(' ') case directive when 'if' condition = false case args when /^mode=(vi|emacs)$/i mode = $1.downcase # NOTE: mode=vi means vi-insert mode mode = 'vi_insert' if mode == 'vi' if @editing_mode_label == mode.to_sym condition = true end when 'term' when 'version' else # application name condition = true if args == 'Ruby' condition = true if args == 'Reline' end if_stack << [no, !condition] when 'else' if if_stack.empty? raise InvalidInputrc, "#{file}:#{no}: unmatched else" end if_stack.last[1] = !if_stack.last[1] when 'endif' if if_stack.empty? raise InvalidInputrc, "#{file}:#{no}: unmatched endif" end if_stack.pop when 'include' read(File.expand_path(args)) end end
inputrc_path()
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# File reline/config.rb, line 84 def inputrc_path case ENV['INPUTRC'] when nil, '' else return File.expand_path(ENV['INPUTRC']) end # In the XDG Specification, if ~/.config/readline/inputrc exists, then # ~/.inputrc should not be read, but for compatibility with GNU Readline, # if ~/.inputrc exists, then it is given priority. home_rc_path = File.expand_path('~/.inputrc') return home_rc_path if File.exist?(home_rc_path) case path = ENV['XDG_CONFIG_HOME'] when nil, '' else path = File.join(path, 'readline/inputrc') return path if File.exist?(path) and path == File.expand_path(path) end path = File.expand_path('~/.config/readline/inputrc') return path if File.exist?(path) return home_rc_path end
key_bindings()
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# File reline/config.rb, line 134 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
key_notation_to_code(notation)
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# File reline/config.rb, line 334 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 $1.to_i(16) # hexadecimal when "\\e" then ?\e.ord when "\\\\" then ?\\.ord when "\\\"" then ?".ord when "\\'" then ?'.ord when "\\a" then ?\a.ord when "\\b" then ?\b.ord when "\\d" then ?\d.ord when "\\f" then ?\f.ord when "\\n" then ?\n.ord when "\\r" then ?\r.ord when "\\t" then ?\t.ord when "\\v" then ?\v.ord else notation.ord end end
keymap()
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# File reline/config.rb, line 76 def keymap @key_actors[@keymap_label] end
loaded?()
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# File reline/config.rb, line 80 def loaded? @loaded end
parse_keyseq(str)
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# File reline/config.rb, line 368 def parse_keyseq(str) ret = [] str.scan(KEYSEQ_PATTERN) do ret << key_notation_to_code($&) end ret end
read(file = nil)
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# File reline/config.rb, line 114 def read(file = nil) @loaded = true 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
read_lines(lines, file = nil)
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# File reline/config.rb, line 158 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 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, if_stack) next end next if if_stack.any? { |_no, skip| skip } 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 func_name = func_name.split.first keystroke, func = bind_key(key, func_name) next unless keystroke @additional_key_bindings[@keymap_label][@keymap_prefix + keystroke] = func end end unless if_stack.empty? raise InvalidInputrc, "#{file}:#{if_stack.last[0]}: unclosed if" end end
reset()
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# File reline/config.rb, line 57 def reset if editing_mode_is?(:vi_command) @editing_mode_label = :vi_insert end @oneshot_key_bindings.clear end
reset_oneshot_key_bindings()
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# File reline/config.rb, line 146 def reset_oneshot_key_bindings @oneshot_key_bindings.clear end
retrieve_string(str)
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# File reline/config.rb, line 315 def retrieve_string(str) str = $1 if str =~ /\A"(.*)"\z/ parse_keyseq(str).map { |c| c.chr(Reline.encoding_system_needs) }.join end
Private Instance Methods
default_inputrc_path()
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# File reline/config.rb, line 110 def default_inputrc_path @default_inputrc_path ||= inputrc_path end
seven_bit_encoding?(encoding)
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# File reline/config.rb, line 376 def seven_bit_encoding?(encoding) encoding == Encoding::US_ASCII end