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 lib/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 end
Public Instance Methods
add_default_key_binding(keystroke, target)
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# File lib/reline/config.rb, line 153 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 lib/reline/config.rb, line 149 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 lib/reline/config.rb, line 141 def add_oneshot_key_binding(keystroke, target) @oneshot_key_bindings[keystroke] = target end
bind_key(key, func_name)
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# File lib/reline/config.rb, line 319 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 lib/reline/config.rb, line 236 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 lib/reline/config.rb, line 63 def editing_mode @key_actors[@editing_mode_label] end
editing_mode=(val)
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# File lib/reline/config.rb, line 67 def editing_mode=(val) @editing_mode_label = val end
editing_mode_is?(*val)
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# File lib/reline/config.rb, line 71 def editing_mode_is?(*val) val.any?(@editing_mode_label) end
handle_directive(directive, file, no, if_stack)
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# File lib/reline/config.rb, line 201 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 lib/reline/config.rb, line 83 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 lib/reline/config.rb, line 133 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 lib/reline/config.rb, line 333 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 $1.to_i(16) # hexadecimal when "\\e" then ?\e.ord when "\\\\" then ?\\.ord when "\\\"" then ?".ord when "\\'" then ?'.ord when "\\a" then ?\a.ord when "\\b" then ?\b.ord when "\\d" then ?\d.ord when "\\f" then ?\f.ord when "\\n" then ?\n.ord when "\\r" then ?\r.ord when "\\t" then ?\t.ord when "\\v" then ?\v.ord else notation.ord end end
keymap()
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# File lib/reline/config.rb, line 75 def keymap @key_actors[@keymap_label] end
loaded?()
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# File lib/reline/config.rb, line 79 def loaded? @loaded end
parse_keyseq(str)
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# File lib/reline/config.rb, line 367 def parse_keyseq(str) ret = [] str.scan(KEYSEQ_PATTERN) do ret << key_notation_to_code($&) end ret end
read(file = nil)
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# File lib/reline/config.rb, line 113 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 lib/reline/config.rb, line 157 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 lib/reline/config.rb, line 56 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 lib/reline/config.rb, line 145 def reset_oneshot_key_bindings @oneshot_key_bindings.clear end
retrieve_string(str)
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# File lib/reline/config.rb, line 314 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 lib/reline/config.rb, line 109 def default_inputrc_path @default_inputrc_path ||= inputrc_path end
seven_bit_encoding?(encoding)
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# File lib/reline/config.rb, line 375 def seven_bit_encoding?(encoding) encoding == Encoding::US_ASCII end