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Re: remapping Cygwin 'bash' readline functions to PC keys
- From: "Lee D. Rothstein" <lee at veritech dot com>
- To: john mapoles <jmapoles at yahoo dot com>, cygwin at Cygwin dot com
- Date: Thu, 20 Feb 2003 12:10:51 -0500
- Subject: Re: remapping Cygwin 'bash' readline functions to PC keys
- References: <firstname.lastname@example.org>
John, thanks for the <C-V> heads up! Others had
suggested, variations of 'cat < foo' and 'od -c'. (The
former I got to work, the latter remains a mystery.)
Your solution, besides being the most straight-forward,
is also a great tool to have around. Apparently, it's a
feature of Cygwin, or 'bash', since it doesn't work in
a naked 'cmd.exe' window. I'll be sure to add it to my
Unfortunately the key combos I'm trying to map to
are: <^-->> and <^-<-> (control- and the right and left
arrow keys). It turns out that the character string
outputs for both the:
* naked key
* shift - and the naked key
* control- and the naked key
are all the same.
Actually, I no longer consider these to be KIDs; these
are the character string graphemic outputs of hitting
the key. I'll continue to reserve "KIDs" for when one
represents these [and the key isomorphisms]
with '/e...', 'C-...', etc. "notation".
Apparently (?), the only way to discriminate among these
three alternatives is with Scan Codes. Apparently, all
the -x-ish stuff I've used (Microemacs, Thompson shell
command line editing) that can discriminate among the
three alternatives all use Scan Codes (?).
- Any way to map to Scan Codes to 'bash' 'readline'
functions under Cygwin?
+ Or to key "names" like: '<CTRL-left-arrow>',
- Any interest among Cygwin developers in adding
>At 2003-02-19 08:02 AM -0800, John Mapole wrote:
>You can build your own KID table. Once at the cygwin
>prompt you can type <C-V>, that's control-V, followed
>by the key. On my machine, if I type <C-V><INSERT>, I
>see "^[[2~". This is the same as "\e[2~".
>Why these mapping are like this relates to how windows
>maps them and then how cygwin maps them. Something I
>am now very clear on.
>Hope this helps some.
>--- "Lee D. Rothstein" <lee at veritech dot com> wrote:
>> Q1 -- When you remap a 'bash' Edit Mode function in
>> .inputrc, it looks like this:
>> "\e[3~": delete-char # DEL key
>> The entity in double quotes ("\e[3~"), I'm calling
>> the "key ID (KID)". In the above '.inputrc' declaration,
>> the function 'delete-char' being remapped from its
>> default key assignment to the KID -- "\e[3~" -- the
>> <DEL> key.
>> What are the KIDs of the following IBM PC keys
>> (specified below with facsimiles of the key caps
>> contained in angle brackets -- '<...>')?
>> Cursor control key pad
>> Numeric pad
I should have included in the above lists, all variations
of the above with the control, alt and shift keys.
>> In general, I'd like a table that maps the KIDs for all
>> 104 keys on the keyboard I use. Or, better still, is
>> there a way to use scan codes?
>> (Incidentally, what makes finding a table of these
>> KIDs so difficult is the failure of the documentation
>> to assign this concept a unique, or even a consistent
>> Is there a way to make the <INSERT> key a toggle
>> between the insert and overwrite modes of 'bash'
>> edit mode?
>> I used to have these figured out for 'Microemacs',
>> but that was half a lifetime ago, for me, & Microemacs
>> supported scan codes, if I remember correctly.
Lee D. Rothstein -- lee at veritech dot com
VeriTech -- 603-424-2900
7 Merry Meeting Drive
Merrimack, NH 03054-2934
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