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Always set standard(really?) CSI keybindings #567

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Always set standard(really?) CSI keybindings #567

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32 changes: 20 additions & 12 deletions lib/reline/ansi.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -14,10 +14,15 @@ class Reline::ANSI
'kcud1' => :ed_next_history,
'kcuf1' => :ed_next_char,
'kcub1' => :ed_prev_char,
'cuu' => :ed_prev_history,
'cud' => :ed_next_history,
'cuf' => :ed_next_char,
'cub' => :ed_prev_char,
}

CSI_STANDARD_KEY_BINDINGS = {
"\e[A" => :ed_prev_history,
"\e[B" => :ed_next_history,
"\e[C" => :ed_next_char,
"\e[D" => :ed_prev_char,
"\e[F" => :ed_move_to_end,
"\e[H" => :ed_move_to_beg,
}

if Reline::Terminfo.enabled?
Expand All @@ -33,6 +38,7 @@ def self.win?
end

def self.set_default_key_bindings(config, allow_terminfo: true)
set_default_key_bindings_csi_standard(config)
if allow_terminfo && Reline::Terminfo.enabled?
set_default_key_bindings_terminfo(config)
else
Expand Down Expand Up @@ -64,18 +70,20 @@ def self.set_default_key_bindings(config, allow_terminfo: true)
end
end

def self.set_default_key_bindings_csi_standard(config)
CSI_STANDARD_KEY_BINDINGS.each_pair do |seq, func|
key = seq.bytes
config.add_default_key_binding_by_keymap(:emacs, key, func)
config.add_default_key_binding_by_keymap(:vi_insert, key, func)
config.add_default_key_binding_by_keymap(:vi_command, key, func)
end
end

def self.set_default_key_bindings_terminfo(config)
key_bindings = CAPNAME_KEY_BINDINGS.map do |capname, key_binding|
begin
key_code = Reline::Terminfo.tigetstr(capname)
case capname
# Escape sequences that omit the move distance and are set to defaults
# value 1 may be sometimes sent by pressing the arrow-key.
when 'cuu', 'cud', 'cuf', 'cub'
[ key_code.sub(/%p1%d/, '').bytes, key_binding ]
else
[ key_code.bytes, key_binding ]
end
[ key_code.bytes, key_binding ]
rescue Reline::Terminfo::TerminfoError
# capname is undefined
end
Expand Down