Key mappings using Meta- prefix don't map

[h3xx]

Description

The regex used forces quotes to surround the key sequence, otherwise key presses aren't even interpreted. Unfortunately this means the readline standard way of specifying modifier keys (Ctrl-x, Meta-y, C-o, M-e etc) don't get picked up.

Oh, and "Meta-c" (with quotes) is not the same thing as "\ec".

An Emacs‐style notation is used to denote keystrokes. Control keys are denoted by C-key, e.g., C-n means Control-N. Similarly, meta keys are denoted by M-key, so M-x means Meta-X. (On keyboards without a meta key, M-x means ESC x, i.e., press the Escape key then the x key. This makes ESC the meta prefix. The combination M-C-x means ESC-Control-x, or press the Escape key then hold the Control key while pressing the x key.)

-- readline(3)

In my ~/.inputrc:

$if Ruby
Meta-c: ".class.name"
$endif

Opening up rails console and typing Alt+c does not produce any output.

Expected outcome is to insert .class.name at the current cursor position.

If I remove the $if / $endif lines, the keymap will apply to Bash, and indeed pressing Alt+c in Bash inserts .class.name onto the current line.

Terminal Emulator

PuTTY 0.79 for Windows.

Just to be sure input isn't getting munged: xxdEnterAlt+cEnterCtrl+d

$ xxd
^[c
00000000: 1b63 0a                                  .c.