Using a direct approach to create the readline async iterator
allowed an iteration over 20 to 58% faster.
**BREAKING CHANGE**: With that change, the async iteterator
obtained from the readline interface doesn't have the
property "stream" any longer. This happened because it's no
longer created through a Readable, instead, the async
iterator is created directly from the events of the readline
interface instance, so, if anyone is using that property,
this change will break their code.
Also, the Readable added a backpressure control that is
fairly compensated by the use of FixedQueue + monitoring
its size. This control wasn't really precise with readline
before, though, because it only pauses the reading of the
original stream, but the lines generated from the last
message received from it was still emitted. For example:
if the readable was paused at 1000 messages but the last one
received generated 10k lines, but no further messages were
emitted again until the queue was lower than the readable
highWaterMark. A similar behavior still happens with the
new implementation, but the highWaterMark used is fixed: 1024,
and the original stream is resumed again only after the queue
is cleared.
Before making that change, I created a package implementing
the same concept used here to validate it. You can find it
[here](https://github.com/Farenheith/faster-readline-iterator)
if this helps anyhow.
PR-URL: https://github.com/nodejs/node/pull/41276
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
That method is overwritten in both
`require('node:readline').Interface.prototype` and
`require('node:readline/promises').Interface.prototype`, and is very
much not useful outside of interacting with TTY, removing it from the
parent class could enable the use of `InterfaceConstructor` in other
contexts (such as interacting with files).
PR-URL: https://github.com/nodejs/node/pull/44606
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
1. Any keystroke emits `0x1E` will do redo action.
2. Fix bug of undo/redo.
3. More detailed document.
4. Unit tests.
PR-URL: https://github.com/nodejs/node/pull/41662
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
1. `Ctrl-Y` to yank previously deleted text
2. `Meta-Y` to do yank pop (cycle among deleted texts)
3. Use `getCursorPos().rows` to check if we have reached a new line,
instead of `getCursorPos().cols === 0`.
4. document and unittests.
PR-URL: https://github.com/nodejs/node/pull/41301
Fixes: https://github.com/nodejs/node/issues/41252
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Qingyu Deng <i@ayase-lab.com>
This is a minor performance improvement for readline. It skips to
escape individual characters again after escaping them before.
Signed-off-by: Ruben Bridgewater <ruben@bridgewater.de>
PR-URL: https://github.com/nodejs/node/pull/41005
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
