365 |
maps. The key sequence argument is represented as a string or vector. |
maps. The key sequence argument is represented as a string or vector. |
366 |
The cursor does not move into the echo area. Prompt. |
The cursor does not move into the echo area. Prompt. |
367 |
|
|
368 |
If the key sequence is a down-event, the following up-event is discarded, |
If @samp{k} reads a key sequence that ends with a down-event, it also |
369 |
but can be read via the @code{U} code character. |
reads and discards the following up-event. You can get access to that |
370 |
|
up-event with the @samp{U} code character. |
371 |
|
|
372 |
This kind of input is used by commands such as @code{describe-key} and |
This kind of input is used by commands such as @code{describe-key} and |
373 |
@code{global-set-key}. |
@code{global-set-key}. |
426 |
parentheses and brackets) do not do so here. Prompt. |
parentheses and brackets) do not do so here. Prompt. |
427 |
|
|
428 |
@item U |
@item U |
429 |
A key sequence or @code{nil}. May be used after a @code{k} or @code{K} |
A key sequence or @code{nil}. Can be used after a @samp{k} or |
430 |
argument to get the up-event that was discarded in case the key |
@samp{K} argument to get the up-event that was discarded (if any) |
431 |
sequence read for that argument was a down-event. No I/O. |
after @samp{k} or @samp{K} read a down-event. If no up-event has been |
432 |
|
discarded, @samp{U} provides @code{nil} as the argument. No I/O. |
433 |
|
|
434 |
@item v |
@item v |
435 |
A variable declared to be a user option (i.e., satisfying the |
A variable declared to be a user option (i.e., satisfying the |
444 |
|
|
445 |
@item X |
@item X |
446 |
@cindex evaluated expression argument |
@cindex evaluated expression argument |
447 |
A Lisp form is read as with @kbd{x}, but then evaluated so that its |
A Lisp form's value. @samp{X} reads as @samp{x} does, then evaluates |
448 |
value becomes the argument for the command. Prompt. |
the form so that its value becomes the argument for the command. |
449 |
|
Prompt. |
450 |
|
|
451 |
@item z |
@item z |
452 |
A coding system name (a symbol). If the user enters null input, the |
A coding system name (a symbol). If the user enters null input, the |