/* Minibuffer input and completion.
-Copyright (C) 1985-1986, 1993-2011 Free Software Foundation, Inc.
+Copyright (C) 1985-1986, 1993-2013 Free Software Foundation, Inc.
This file is part of GNU Emacs.
#include <config.h>
#include <errno.h>
#include <stdio.h>
-#include <setjmp.h>
#include "lisp.h"
#include "commands.h"
+#include "character.h"
#include "buffer.h"
#include "dispextern.h"
#include "keyboard.h"
static Lisp_Object Qminibuffer_completion_table;
static Lisp_Object Qminibuffer_completion_predicate;
static Lisp_Object Qminibuffer_completion_confirm;
-static Lisp_Object Quser_variable_p;
+static Lisp_Object Qcustom_variable_p;
static Lisp_Object Qminibuffer_default;
/* I don't think that any frames may validly have a null minibuffer
window anymore. */
if (NILP (sf->minibuffer_window))
- abort ();
+ emacs_abort ();
/* Under X, we come here with minibuf_window being the
minibuffer window of the unused termcap window created in
init_window_once. That window doesn't have a buffer. */
buffer = XWINDOW (minibuf_window)->buffer;
if (BUFFERP (buffer))
- Fset_window_buffer (sf->minibuffer_window, buffer, Qnil);
+ /* Use set_window_buffer instead of Fset_window_buffer (see
+ discussion of bug#11984, bug#12025, bug#12026). */
+ set_window_buffer (sf->minibuffer_window, buffer, 0, 0);
minibuf_window = sf->minibuffer_window;
}
static Lisp_Object read_minibuf_unwind (Lisp_Object);
static Lisp_Object run_exit_minibuf_hook (Lisp_Object);
-static Lisp_Object read_minibuf (Lisp_Object, Lisp_Object,
- Lisp_Object,
- int, Lisp_Object,
- Lisp_Object, Lisp_Object,
- int, int);
-static Lisp_Object read_minibuf_noninteractive (Lisp_Object, Lisp_Object,
- Lisp_Object, Lisp_Object,
- int, Lisp_Object,
- Lisp_Object, Lisp_Object,
- int, int);
-static Lisp_Object string_to_object (Lisp_Object, Lisp_Object);
/* Read a Lisp object from VAL and return it. If VAL is an empty
static Lisp_Object
read_minibuf_noninteractive (Lisp_Object map, Lisp_Object initial,
Lisp_Object prompt, Lisp_Object backup_n,
- int expflag,
+ bool expflag,
Lisp_Object histvar, Lisp_Object histpos,
Lisp_Object defalt,
- int allow_props, int inherit_input_method)
+ bool allow_props, bool inherit_input_method)
{
ptrdiff_t size, len;
char *line;
val = Qnil;
size = 100;
len = 0;
- line = (char *) xmalloc (size);
+ line = xmalloc (size);
while ((c = getchar ()) != '\n')
{
if (STRING_BYTES_BOUND / 2 < size)
memory_full (SIZE_MAX);
size *= 2;
- line = (char *) xrealloc (line, size);
+ line = xrealloc (line, size);
}
line[len++] = c;
}
beginning of INITIAL if N <= 0.
Normally return the result as a string (the text that was read),
- but if EXPFLAG is nonzero, read it and return the object read.
+ but if EXPFLAG, read it and return the object read.
If HISTVAR is given, save the value read on that history only if it doesn't
match the front of that history list exactly. The value is pushed onto
the list as the string that was read.
DEFALT specifies the default value for the sake of history commands.
- If ALLOW_PROPS is nonzero, we do not throw away text properties.
+ If ALLOW_PROPS, do not throw away text properties.
- if INHERIT_INPUT_METHOD is nonzero, the minibuffer inherits the
+ if INHERIT_INPUT_METHOD, the minibuffer inherits the
current input method. */
static Lisp_Object
read_minibuf (Lisp_Object map, Lisp_Object initial, Lisp_Object prompt,
- int expflag,
+ bool expflag,
Lisp_Object histvar, Lisp_Object histpos, Lisp_Object defalt,
- int allow_props, int inherit_input_method)
+ bool allow_props, bool inherit_input_method)
{
Lisp_Object val;
ptrdiff_t count = SPECPDL_INDEX ();
Lisp_Object dummy, frame;
specbind (Qminibuffer_default, defalt);
+ specbind (intern ("inhibit-read-only"), Qnil);
/* If Vminibuffer_completing_file_name is `lambda' on entry, it was t
in previous recursive minibuffer, but was not set explicitly
{
if (CONSP (initial))
{
- Lisp_Object backup_n = Fcdr (initial);
- initial = Fcar (initial);
+ Lisp_Object backup_n = XCDR (initial);
+ initial = XCAR (initial);
CHECK_STRING (initial);
if (!NILP (backup_n))
{
/* Choose the minibuffer window and frame, and take action on them. */
+ /* Prepare for restoring the current buffer since choose_minibuf_frame
+ calling Fset_frame_selected_window may change it (Bug#12766). */
+ record_unwind_protect (Fset_buffer, Fcurrent_buffer ());
+
choose_minibuf_frame ();
record_unwind_protect (choose_minibuf_frame_1, Qnil);
/* Defeat (setq-default truncate-lines t), since truncated lines do
not work correctly in minibuffers. (Bug#5715, etc) */
- BVAR (current_buffer, truncate_lines) = Qnil;
+ bset_truncate_lines (current_buffer, Qnil);
/* If appropriate, copy enable-multibyte-characters into the minibuffer. */
if (inherit_input_method)
- BVAR (current_buffer, enable_multibyte_characters) = enable_multibyte;
+ bset_enable_multibyte_characters (current_buffer, enable_multibyte);
/* The current buffer's default directory is usually the right thing
for our minibuffer here. However, if you're typing a command at
you think of something better to do? Find another buffer with a
better directory, and use that one instead. */
if (STRINGP (ambient_dir))
- BVAR (current_buffer, directory) = ambient_dir;
+ bset_directory (current_buffer, ambient_dir);
else
{
Lisp_Object buf_list;
other_buf = XCDR (XCAR (buf_list));
if (STRINGP (BVAR (XBUFFER (other_buf), directory)))
{
- BVAR (current_buffer, directory) = BVAR (XBUFFER (other_buf), directory);
+ bset_directory (current_buffer,
+ BVAR (XBUFFER (other_buf), directory));
break;
}
}
if (! NILP (mini_window) && ! EQ (mini_window, minibuf_window)
&& !NILP (Fwindow_minibuffer_p (mini_window)))
- Fset_window_buffer (mini_window, empty_minibuf, Qnil);
+ /* Use set_window_buffer instead of Fset_window_buffer (see
+ discussion of bug#11984, bug#12025, bug#12026). */
+ set_window_buffer (mini_window, empty_minibuf, 0, 0);
}
/* Display this minibuffer in the proper window. */
- Fset_window_buffer (minibuf_window, Fcurrent_buffer (), Qnil);
+ /* Use set_window_buffer instead of Fset_window_buffer (see
+ discussion of bug#11984, bug#12025, bug#12026). */
+ set_window_buffer (minibuf_window, Fcurrent_buffer (), 0, 0);
Fselect_window (minibuf_window, Qnil);
- XSETFASTINT (XWINDOW (minibuf_window)->hscroll, 0);
+ XWINDOW (minibuf_window)->hscroll = 0;
Fmake_local_variable (Qprint_escape_newlines);
print_escape_newlines = 1;
}
clear_message (1, 1);
- BVAR (current_buffer, keymap) = map;
+ bset_keymap (current_buffer, map);
/* Turn on an input method stored in INPUT_METHOD if any. */
if (STRINGP (input_method) && !NILP (Ffboundp (Qactivate_input_method)))
Frun_hooks (1, &Qminibuffer_setup_hook);
/* Don't allow the user to undo past this point. */
- BVAR (current_buffer, undo_list) = Qnil;
+ bset_undo_list (current_buffer, Qnil);
recursive_edit_1 ();
Vminibuffer_list = nconc2 (Vminibuffer_list, tail);
}
buf = Fcar (tail);
- if (NILP (buf) || NILP (BVAR (XBUFFER (buf), name)))
+ if (NILP (buf) || !BUFFER_LIVE_P (XBUFFER (buf)))
{
- sprintf (name, " *Minibuf-%"pI"d*", depth);
- buf = Fget_buffer_create (build_string (name));
+ buf = Fget_buffer_create
+ (make_formatted_string (name, " *Minibuf-%"pI"d*", depth));
/* Although the buffer's name starts with a space, undo should be
enabled in it. */
else
{
ptrdiff_t count = SPECPDL_INDEX ();
- /* `reset_buffer' blindly sets the list of overlays to NULL, so we
- have to empty the list, otherwise we end up with overlays that
- think they belong to this buffer while the buffer doesn't know about
- them any more. */
+ /* We have to empty both overlay lists. Otherwise we end
+ up with overlays that think they belong to this buffer
+ while the buffer doesn't know about them any more. */
delete_all_overlays (XBUFFER (buf));
reset_buffer (XBUFFER (buf));
- record_unwind_protect (Fset_buffer, Fcurrent_buffer ());
+ record_unwind_current_buffer ();
Fset_buffer (buf);
if (!NILP (Ffboundp (intern ("minibuffer-inactive-mode"))))
call0 (intern ("minibuffer-inactive-mode"));
/* Make sure minibuffer window is erased, not ignored. */
windows_or_buffers_changed++;
- XSETFASTINT (XWINDOW (window)->last_modified, 0);
- XSETFASTINT (XWINDOW (window)->last_overlay_modified, 0);
+ XWINDOW (window)->last_modified = 0;
+ XWINDOW (window)->last_overlay_modified = 0;
/* In case the previous minibuffer displayed in this miniwindow is
dead, we may keep displaying this buffer (tho it's inactive), so reset it,
The optional second arg INITIAL-CONTENTS is an obsolete alternative to
DEFAULT-VALUE. It normally should be nil in new code, except when
HIST is a cons. It is discussed in more detail below.
+
Third arg KEYMAP is a keymap to use whilst reading;
if omitted or nil, the default is `minibuffer-local-map'.
-If fourth arg READ is non-nil, then interpret the result as a Lisp object
+
+If fourth arg READ is non-nil, interpret the result as a Lisp object
and return that object:
in other words, do `(car (read-from-string INPUT-STRING))'
+
Fifth arg HIST, if non-nil, specifies a history list and optionally
the initial position in the list. It can be a symbol, which is the
- history list variable to use, or it can be a cons cell
- (HISTVAR . HISTPOS). In that case, HISTVAR is the history list variable
- to use, and HISTPOS is the initial position for use by the minibuffer
- history commands. For consistency, you should also specify that
- element of the history as the value of INITIAL-CONTENTS. Positions
- are counted starting from 1 at the beginning of the list.
-Sixth arg DEFAULT-VALUE is a default value or list of default values.
- If non-nil, it is available via history commands. If READ is
- non-nil, it is also the default to `read' if the user enters empty
- input. If READ is non-nil, `read-from-minibuffer' does NOT return
- DEFAULT-VALUE for empty input! It returns the empty string.
+ history list variable to use, or a cons cell (HISTVAR . HISTPOS).
+ In that case, HISTVAR is the history list variable to use, and
+ HISTPOS is the initial position for use by the minibuffer history
+ commands. For consistency, you should also specify that element of
+ the history as the value of INITIAL-CONTENTS. Positions are counted
+ starting from 1 at the beginning of the list.
+
+Sixth arg DEFAULT-VALUE, if non-nil, should be a string, which is used
+ as the default to `read' if READ is non-nil and the user enters
+ empty input. But if READ is nil, this function does _not_ return
+ DEFAULT-VALUE for empty input! Instead, it returns the empty string.
+
+ Whatever the value of READ, DEFAULT-VALUE is made available via the
+ minibuffer history commands. DEFAULT-VALUE can also be a list of
+ strings, in which case all the strings are available in the history,
+ and the first string is the default to `read' if READ is non-nil.
+
Seventh arg INHERIT-INPUT-METHOD, if non-nil, means the minibuffer inherits
the current input method and the setting of `enable-multibyte-characters'.
+
If the variable `minibuffer-allow-text-properties' is non-nil,
then the string which is returned includes whatever text properties
were present in the minibuffer. Otherwise the value has no text properties.
(Lisp_Object prompt, Lisp_Object initial_input, Lisp_Object history, Lisp_Object default_value, Lisp_Object inherit_input_method)
{
Lisp_Object val;
+ ptrdiff_t count = SPECPDL_INDEX ();
+
+ /* Just in case we're in a recursive minibuffer, make it clear that the
+ previous minibuffer's completion table does not apply to the new
+ minibuffer.
+ FIXME: `minibuffer-completion-table' should be buffer-local instead. */
+ specbind (Qminibuffer_completion_table, Qnil);
+
val = Fread_from_minibuffer (prompt, initial_input, Qnil,
Qnil, history, default_value,
inherit_input_method);
if (STRINGP (val) && SCHARS (val) == 0 && ! NILP (default_value))
val = CONSP (default_value) ? XCAR (default_value) : default_value;
- return val;
+ return unbind_to (count, val);
}
DEFUN ("read-no-blanks-input", Fread_no_blanks_input, Sread_no_blanks_input, 1, 3, 0,
#endif /* NOTDEF */
DEFUN ("read-variable", Fread_variable, Sread_variable, 1, 2, 0,
- doc: /* Read the name of a user variable and return it as a symbol.
+ doc: /* Read the name of a user option and return it as a symbol.
Prompt with PROMPT. By default, return DEFAULT-VALUE or its first element
if it is a list.
-A user variable is one for which `user-variable-p' returns non-nil. */)
+A user option, or customizable variable, is one for which
+`custom-variable-p' returns non-nil. */)
(Lisp_Object prompt, Lisp_Object default_value)
{
Lisp_Object name, default_string;
default_string = default_value;
name = Fcompleting_read (prompt, Vobarray,
- Quser_variable_p, Qt,
+ Qcustom_variable_p, Qt,
Qnil, Qnil, default_string, Qnil);
if (NILP (name))
return name;
{
collection = check_obarray (collection);
obsize = ASIZE (collection);
- bucket = XVECTOR (collection)->contents[idx];
+ bucket = AREF (collection, idx);
}
while (1)
break;
else
{
- bucket = XVECTOR (collection)->contents[idx];
+ bucket = AREF (collection, idx);
continue;
}
}
if (bestmatchsize != SCHARS (eltstring)
|| bestmatchsize != matchsize)
/* Don't count the same string multiple times. */
- matchcount++;
+ matchcount += matchcount <= 1;
bestmatchsize = matchsize;
if (matchsize <= SCHARS (string)
/* If completion-ignore-case is non-nil, don't
{
collection = check_obarray (collection);
obsize = ASIZE (collection);
- bucket = XVECTOR (collection)->contents[idx];
+ bucket = AREF (collection, idx);
}
while (1)
break;
else
{
- bucket = XVECTOR (collection)->contents[idx];
+ bucket = AREF (collection, idx);
continue;
}
}
functions, which use one-indexing for POSITION.) This feature is
deprecated--it is best to pass nil for INITIAL-INPUT and supply the
default value DEF instead. The user can yank the default value into
- the minibuffer easily using \\[next-history-element].
+ the minibuffer easily using \\<minibuffer-local-map>\\[next-history-element].
HIST, if non-nil, specifies a history list and optionally the initial
position in the list. It can be a symbol, which is the history list
return Ffuncall (9, args);
}
\f
-Lisp_Object Fassoc_string (register Lisp_Object key, Lisp_Object list, Lisp_Object case_fold);
-
/* Test whether TXT is an exact completion. */
DEFUN ("test-completion", Ftest_completion, Stest_completion, 2, 3, 0,
doc: /* Return non-nil if STRING is a valid completion.
{
for (i = ASIZE (collection) - 1; i >= 0; i--)
{
- tail = XVECTOR (collection)->contents[i];
+ tail = AREF (collection, i);
if (SYMBOLP (tail))
while (1)
{
}
static Lisp_Object Qmetadata;
-extern Lisp_Object Qbuffer;
DEFUN ("internal-complete-buffer", Finternal_complete_buffer, Sinternal_complete_buffer, 3, 3, 0,
doc: /* Perform completion on buffer names.
-If the argument FLAG is nil, invoke `try-completion', if it's t, invoke
-`all-completions', otherwise invoke `test-completion'.
+STRING and PREDICATE have the same meanings as in `try-completion',
+`all-completions', and `test-completion'.
-The arguments STRING and PREDICATE are as in `try-completion',
-`all-completions', and `test-completion'. */)
+If FLAG is nil, invoke `try-completion'; if it is t, invoke
+`all-completions'; otherwise invoke `test-completion'. */)
(Lisp_Object string, Lisp_Object predicate, Lisp_Object flag)
{
if (NILP (flag))
staticpro (&last_minibuf_string);
last_minibuf_string = Qnil;
- DEFSYM (Quser_variable_p, "user-variable-p");
DEFSYM (Qminibuffer_history, "minibuffer-history");
DEFSYM (Qbuffer_name_history, "buffer-name-history");
Fset (Qbuffer_name_history, Qnil);
+ DEFSYM (Qcustom_variable_p, "custom-variable-p");
DEFSYM (Qminibuffer_setup_hook, "minibuffer-setup-hook");
DEFSYM (Qminibuffer_exit_hook, "minibuffer-exit-hook");
DEFSYM (Qhistory_length, "history-length");
DEFVAR_BOOL ("read-buffer-completion-ignore-case",
read_buffer_completion_ignore_case,
- doc: /* *Non-nil means completion ignores case when reading a buffer name. */);
+ doc: /* Non-nil means completion ignores case when reading a buffer name. */);
read_buffer_completion_ignore_case = 0;
DEFVAR_LISP ("minibuffer-setup-hook", Vminibuffer_setup_hook,
Vminibuffer_exit_hook = Qnil;
DEFVAR_LISP ("history-length", Vhistory_length,
- doc: /* *Maximum length for history lists before truncation takes place.
-A number means that length; t means infinite. Truncation takes place
-just after a new element is inserted. Setting the `history-length'
-property of a history variable overrides this default. */);
+ doc: /* Maximum length of history lists before truncation takes place.
+A number means truncate to that length; truncation deletes old
+elements, and is done just after inserting a new element.
+A value of t means no truncation.
+
+This variable only affects history lists that don't specify their own
+maximum lengths. Setting the `history-length' property of a history
+variable overrides this default. */);
XSETFASTINT (Vhistory_length, 30);
DEFVAR_BOOL ("history-delete-duplicates", history_delete_duplicates,
- doc: /* *Non-nil means to delete duplicates in history.
+ doc: /* Non-nil means to delete duplicates in history.
If set to t when adding a new history element, all previous identical
elements are deleted from the history list. */);
history_delete_duplicates = 0;
DEFVAR_LISP ("history-add-new-input", Vhistory_add_new_input,
- doc: /* *Non-nil means to add new elements in history.
+ doc: /* Non-nil means to add new elements in history.
If set to nil, minibuffer reading functions don't add new elements to the
history list, so it is possible to do this afterwards by calling
`add-to-history' explicitly. */);
completion_ignore_case = 0;
DEFVAR_BOOL ("enable-recursive-minibuffers", enable_recursive_minibuffers,
- doc: /* *Non-nil means to allow minibuffer commands while in the minibuffer.
+ doc: /* Non-nil means to allow minibuffer commands while in the minibuffer.
This variable makes a difference whenever the minibuffer window is active. */);
enable_recursive_minibuffers = 0;
Vminibuffer_history_position = Qnil;
DEFVAR_BOOL ("minibuffer-auto-raise", minibuffer_auto_raise,
- doc: /* *Non-nil means entering the minibuffer raises the minibuffer's frame.
+ doc: /* Non-nil means entering the minibuffer raises the minibuffer's frame.
Some uses of the echo area also raise that frame (since they use it too). */);
minibuffer_auto_raise = 0;