Check backspace against VERASE earlier before it is translated to an
internal key and do not go through the mapping on output. Fixes problems
reported by Ben Price in GitHub issue 4284 and by tb@.

Only map S-Tag in mode 2, not mode 1. GitHub issue 4304.

Preserve modifiers on backspace.

Do not write bracketed paste keys themselves if the pane has not asked
for them.

Fix backspace option for new key format, GitHub issue 4284.

Adjust how Ctrl and Meta keys are sent to use standard representation if
available in mode 1, from Stanislav Kljuhhin, GitHub issue 4188.

Improve fix for shifted keys so it works for all the keys it should,
Stanislav Kljuhhin in GitHub issue 4146.

Report shifted keys like S-A as A not as S-A in mode 1 extended keys,
from Stanislav Kljuhhin.

Change pasting to bypass the output key processing entirely and write
what was originally received. Fixes problems with pasted text being
interpreted as extended keys reported by Mark Kelly.

C-h should not be treated specially and represented internally as \b but
as C-h like the other Ctrl keys. Backspace is already handled separately
if it VERASE.

Ignore internal function keys if they have not got an entry in the key
table.

C-Space and Meta keys should not be translated in mode 1 extended keys.

Revamp extended keys support to more closely match xterm and support
mode 2 as well as mode 1. From Stanislav Kljuhhin (GitHub issue 4038).

This changes tmux to always request mode 2 from parent ter

Revamp extended keys support to more closely match xterm and support
mode 2 as well as mode 1. From Stanislav Kljuhhin (GitHub issue 4038).

This changes tmux to always request mode 2 from parent terminal, change
to an unambiguous internal representation of keys, and adds an option
(extended-keys-format) to control the format similar to the xterm(1)
formatOtherKeys resource.

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Have tmux recognise pasted texts wrapped in bracket paste sequences,
rather than only forwarding them to the program inside. From Andrew
Onyshchuk in GitHub issue 3431.

Fix C-S-Tab without extended keys, from Aaron Jensen.

Instead of always setting the extended flag, set it only when searching.
Allows send-keys to work. From Aaron Jensen.

Add modified Tab key sequences, from Aaron Jensen, GitHub issue 3368.

If a mouse position was above the maximum supported by the normal mouse
protocol (223), tmux was allowing it to wrap around. However, since tmux
was not correctly handling this on input, other progra

If a mouse position was above the maximum supported by the normal mouse
protocol (223), tmux was allowing it to wrap around. However, since tmux
was not correctly handling this on input, other programs also do not
handle it correctly, and the alternative SGR mouse mode is now
widespread, this seems unnecessary, so remove this feature. Also define
some constants to make it clearer what the numbers mean. Mostly from
Leonid S Usov in GitHub issue 3165.

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Don't convert codes for special keys (Tab, Enter, Escape).

Map control keys back to an ASCII uppercase letter when passing them on
as extended keys.

Support more mouse buttons when the terminal sends them, GitHub issue
3055.

Remove stray spaces after function names.

Remove old shift function keys which interfere with xterm keys now.
GitHub issue 2696.

Move "special" keys into the Unicode PUA rather than making them top bit
set, some compilers do not allow enums that are larger than int. GitHub
issue 2673.

Change a type to fix a warning with some compilers.