3 ms·
They work everywhere. Decades ago, the Home/End/PgUp etc keys might not work on all terminals. You can use the standard keyboard movement keys if you prefer.
by Symbiote 4y ago
They work everywhere. Decades ago, the Home/End/PgUp etc keys might not work on all terminals.
You can use the standard keyboard movement keys if you prefer.
(The letters are mnemonics, Back, Forward, Next line, Previous line, End of line, start of line uses A as the first letter. The control key tends to do smaller things (like move one letter or line) while the alt/meta key does bigger or less-common things, like move whole words, sentences or paragraphs. See https://www.gnu.org/software/emacs/manual/html_node/emacs/Moving-Point.html https://www.gnu.org/software/emacs/manual/html_node/emacs/Mo...)
- pwg 4y ago> Decades ago, the Home/End/PgUp etc keys might not work on all terminals. Decades ago, on real serial terminals, the terminal keyboard likely did not even have Home/End/PgUp/PgDn keys [1]. That is the reason for the seeming odd mappings now in 2022 after almost every computer has a keyboard that contains nearly the same set of 'extra' keys. When readline was developed, there was no IBM-PC keyboard layout (because readline predates the IBM-PC) and besides the basic letters, numbers and punctuation keys there were very few other keys that were available on all keyboards at the time. [1] https://en.wikipedia.org/wiki/File:Mappa_Teletype_ASR-33.jpg https://en.wikipedia.org/wiki/File:Mappa_Teletype_ASR-33.jpg https://vt100.net/docs/vt100-ug/chapter3.html https://vt100.net/docs/vt100-ug/chapter3.html (see "The Keyboard")