diff options
author | Miles Bader <miles@gnu.org> | 2004-06-28 07:56:49 +0000 |
---|---|---|
committer | Miles Bader <miles@gnu.org> | 2004-06-28 07:56:49 +0000 |
commit | 327719ee8a3fcdb36ed6acaf6d8cb5fbdf0bd801 (patch) | |
tree | 21de188e13b5e41a79bb50040933072ae0235217 /lispref/minibuf.texi | |
parent | 852f73b7fa7b71910282eacb6263b3ecfd4ee783 (diff) | |
parent | 376de73927383d6062483db10b8a82448505f52b (diff) | |
download | emacs-327719ee8a3fcdb36ed6acaf6d8cb5fbdf0bd801.tar.gz |
Revision: miles@gnu.org--gnu-2004/emacs--unicode--0--patch-15
Merge from emacs--cvs-trunk--0
Patches applied:
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-218
- miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-220
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-221
Restore deleted tagline in etc/TUTORIAL.ru
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-222
- miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-228
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-229
Remove TeX output files from the archive
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-230
- miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-247
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-248
src/lisp.h (CYCLE_CHECK): Macro moved from xfaces.c
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-249
- miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-256
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-258
- miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-263
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-264
Update from CVS: lispref/display.texi: emacs -> Emacs.
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-265
- miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-274
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-275
Update from CVS: man/makefile.w32-in: Revert last change
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-276
- miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-295
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-296
Allow restarting an existing debugger session that's exited
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-297
- miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-299
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-300
- miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-327
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-328
Update from CVS: src/.gdbinit (xsymbol): Fix last change.
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-329
- miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-344
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-345
Tweak source regexps so that building in place won't cause problems
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-346
- miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-351
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-352
Update from CVS: lisp/flymake.el: New file.
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-353
- miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-361
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-362
Support " [...]" style defaults in minibuffer-electric-default-mode
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-363
(read-number): Use canonical format for default in prompt.
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-364
- miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-367
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-368
Improve display-supports-face-attributes-p on non-ttys
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-369
Rewrite face-differs-from-default-p
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-370
Move `display-supports-face-attributes-p' entirely into C code
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-371
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-372
Simplify face-differs-from-default-p; don't consider :stipple.
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-373
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-374
(tty_supports_face_attributes_p): Ensure attributes differ from default
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-375
- miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-376
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-377
(Fdisplay_supports_face_attributes_p): Work around bootstrapping problem
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-378
- miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-380
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-381
Face merging cleanups
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-382
- miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-384
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-385
src/xfaces.c (push_named_merge_point): Return 0 if a cycle is detected
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-386
- miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-395
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-396
Tweak arch tagging to make build/install-in-place less annoying
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-397
Work around vc-arch problems when building eshell
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-398
Tweak permissions
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-399
Tweak directory permissions
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-400
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-401
More build-in-place tweaking of arch tagging
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-402
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-403
Yet more build-in-place tweaking of arch tagging
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-404
- miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-409
Update from CVS
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-410
Make sure image types are initialized for lookup too
* miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-411
- miles@gnu.org--gnu-2004/emacs--cvs-trunk--0--patch-416
Update from CVS
Diffstat (limited to 'lispref/minibuf.texi')
-rw-r--r-- | lispref/minibuf.texi | 90 |
1 files changed, 52 insertions, 38 deletions
diff --git a/lispref/minibuf.texi b/lispref/minibuf.texi index 0c56f9d4622..a2695eab6b9 100644 --- a/lispref/minibuf.texi +++ b/lispref/minibuf.texi @@ -23,6 +23,7 @@ for reading an argument. * Object from Minibuffer:: How to read a Lisp object or expression. * Minibuffer History:: Recording previous minibuffer inputs so the user can reuse them. +* Initial Input:: Specifying initial contents for the minibuffer. * Completion:: How to invoke and customize completion. * Yes-or-No Queries:: Asking a question with a simple answer. * Multiple Queries:: Asking a series of similar questions. @@ -168,25 +169,9 @@ the setting of @code{enable-multibyte-characters} (@pxref{Text Representations}) from whichever buffer was current before entering the minibuffer. -If @var{initial-contents} is a string, @code{read-from-minibuffer} -inserts it into the minibuffer, leaving point at the end, before the -user starts to edit the text. The minibuffer appears with this text as -its initial contents. - -Alternatively, @var{initial-contents} can be a cons cell of the form -@code{(@var{string} . @var{position})}. This means to insert -@var{string} in the minibuffer but put point at @emph{one-indexed} -@var{position} in the minibuffer, rather than at the end. Any integer -value less or equal to one puts point at the beginning of the string. - -@strong{Usage note:} The @var{initial-contents} argument and the -@var{default} argument are two alternative features for more or less the -same job. It does not make sense to use both features in a single call -to @code{read-from-minibuffer}. In general, we recommend using -@var{default}, since this permits the user to insert the default value -when it is wanted, but does not burden the user with deleting it from -the minibuffer on other occasions. For an exception to this rule, -see @ref{Minibuffer History}. +Use of @var{initial-contents} is mostly deprecated; we recommend using +a non-@code{nil} value only in conjunction with specifying a cons cell +for @var{hist}. @xref{Initial Input}. @end defun @defun read-string prompt &optional initial history default inherit-input-method @@ -440,9 +425,11 @@ symbol @var{variable}. @code{previous-history-element} will display the most recent element of the history list in the minibuffer. If you specify a positive @var{startpos}, the minibuffer history functions behave as if @code{(elt @var{variable} (1- @var{STARTPOS}))} were the -history element currently shown in the minibuffer. For consistency, -you should also specify that element of the history as the initial -minibuffer contents. +history element currently shown in the minibuffer. + +For consistency, you should also specify that element of the history +as the initial minibuffer contents, using the @var{initial} argument +to the minibuffer input function (@pxref{Initial Input}). @end table If you don't specify @var{hist}, then the default history list @@ -506,6 +493,45 @@ A history list for arguments that are shell commands. A history list for arguments that are Lisp expressions to evaluate. @end defvar +@node Initial Input +@section Initial Input + +Several of the functions for minibuffer input have an argument called +@var{initial} or @var{initial-contents}. This is a mostly-deprecated +feature for specifiying that the minibuffer should start out with +certain text, instead of empty as usual. + +If @var{initial} is a string, the minibuffer starts out containing the +text of the string, with point at the end, when the user starts to +edit the text. If the user simply types @key{RET} to exit the +minibuffer, it will use the initial input string to determine the +value to return. + +@strong{We discourage use of a non-@code{nil} value for +@var{initial}}, because initial input is an intrusive interface. +History lists and default values provide a much more convenient method +to offer useful default inputs to the user. + +There is just one situation where you should specify a string for an +@var{initial} argument. This is when you specify a cons cell for the +@var{hist} or @var{history} argument. @xref{Minibuffer History}. + +@var{initial} can also be a cons cell of the form @code{(@var{string} +. @var{position})}. This means to insert @var{string} in the +minibuffer but put point at @var{position} within the string's text. + +As a historical accident, @var{position} was implemented +inconsistently in different functions. In @code{completing-read}, +@var{position}'s value is interpreted as origin-zero; that is, a value +of 0 means the beginning of the string, 1 means after the first +character, etc. In @code{read-minibuffer}, and the other +non-completion minibuffer input functions that support this argument, +1 means the beginning of the string 2 means after the first character, +etc. + +Use of a cons cell as the value for @var{initial} arguments is +deprecated in user code. + @node Completion @section Completion @cindex completion @@ -797,22 +823,10 @@ The argument @var{hist} specifies which history list variable to use for saving the input and for minibuffer history commands. It defaults to @code{minibuffer-history}. @xref{Minibuffer History}. -If @var{initial} is non-@code{nil}, @code{completing-read} inserts it -into the minibuffer as part of the input, with point at the end. Then -it allows the user to edit the input, providing several commands to -attempt completion. @var{initial} can also be a cons cell of the form -@code{(@var{string} . @var{position})}. In that case, point is put at -@emph{zero-indexed} position @var{position} in @var{string}. Note -that this is different from @code{read-from-minibuffer} and related -functions, which use a one-indexed position. In most cases, we -recommend using @var{default}, and not @var{initial}. - -@strong{We discourage use of a non-@code{nil} value for -@var{initial}}, because it is an intrusive interface. The history -list feature (which did not exist when we introduced @var{initial}) -offers a far more convenient and general way for the user to get the -default and edit it, and it is always available. For an exception to -this rule, see @ref{Minibuffer History}. +The argument @var{initial} is mostly deprecated; we recommend using a +non-@code{nil} value only in conjunction with specifying a cons cell +for @var{hist}. @xref{Initial Input}. For default input, use +@var{default} instead. If the argument @var{inherit-input-method} is non-@code{nil}, then the minibuffer inherits the current input method (@pxref{Input |