/* Call a Lisp function interactively.
- Copyright (C) 1985, 1986, 1993, 1994, 1995 Free Software Foundation, Inc.
+ Copyright (C) 1985, 86, 93, 94, 95, 1997 Free Software Foundation, Inc.
This file is part of GNU Emacs.
You should have received a copy of the GNU General Public License
along with GNU Emacs; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
#include <config.h>
extern char *index ();
-Lisp_Object Qminus, Qplus;
+extern Lisp_Object Qcursor_in_echo_area;
+
+Lisp_Object Vcurrent_prefix_arg, Qminus, Qplus;
Lisp_Object Qcall_interactively;
Lisp_Object Vcommand_history;
Lisp_Object Vmouse_leave_buffer_hook, Qmouse_leave_buffer_hook;
-Lisp_Object Qlist;
-Lisp_Object preserved_fns;
+Lisp_Object Qlist, Qlet, Qletx, Qsave_excursion;
+static Lisp_Object preserved_fns;
+
+/* Marker used within call-interactively to refer to point. */
+static Lisp_Object point_marker;
+
+/* Buffer for the prompt text used in Fcall_interactively. */
+static char *callint_message;
+
+/* Allocated length of that buffer. */
+static int callint_message_size;
/* This comment supplies the doc string for interactive,
for make-docfile to see. We cannot put this in the real DEFUN
This skips events that are integers or symbols.\n\
f -- Existing file name.\n\
F -- Possibly nonexistent file name.\n\
-k -- Key sequence (string).\n\
+i -- Ignored, i.e. always nil. Does not do I/O.\n\
+k -- Key sequence (downcase the last event if needed to get a definition).\n\
+K -- Key sequence to be redefined (do not downcase the last event).\n\
m -- Value of mark as number. Does not do I/O.\n\
+M -- Any string. Inherits the current input method.\n\
n -- Number read using minibuffer.\n\
N -- Raw prefix arg, or if none, do like code `n'.\n\
p -- Prefix arg converted to number. Does not do I/O.\n\
P -- Prefix arg in raw form. Does not do I/O.\n\
r -- Region: point and mark as 2 numeric args, smallest first. Does no I/O.\n\
-s -- Any string.\n\
+s -- Any string. Does not inherit the current input method.\n\
S -- Any symbol.\n\
v -- Variable name: symbol that is user-variable-p.\n\
x -- Lisp expression read but not evaluated.\n\
X -- Lisp expression read and evaluated.\n\
+z -- Coding system.\n\
+Z -- Coding system, nil if no prefix arg.\n\
In addition, if the string begins with `*'\n\
then an error is signaled if the buffer is read-only.\n\
This happens before reading any arguments.\n\
}
-DEFUN ("call-interactively", Fcall_interactively, Scall_interactively, 1, 2, 0,
+DEFUN ("call-interactively", Fcall_interactively, Scall_interactively, 1, 3, 0,
"Call FUNCTION, reading args according to its interactive calling specs.\n\
+Return the value FUNCTION returns.\n\
The function contains a specification of how to do the argument reading.\n\
In the case of user-defined functions, this is specified by placing a call\n\
to the function `interactive' at the top level of the function body.\n\
Optional second arg RECORD-FLAG non-nil\n\
means unconditionally put this command in the command-history.\n\
Otherwise, this is done only if an arg is read using the minibuffer.")
- (function, record)
- Lisp_Object function, record;
+ (function, record_flag, keys)
+ Lisp_Object function, record_flag, keys;
{
Lisp_Object *args, *visargs;
unsigned char **argstrings;
register int i, j;
int count, foo;
- char prompt[100];
char prompt1[100];
char *tem1;
int arg_from_tty = 0;
struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
+ int key_count;
+
+ if (NILP (keys))
+ keys = this_command_keys, key_count = this_command_key_count;
+ else
+ {
+ CHECK_VECTOR (keys, 3);
+ key_count = XVECTOR (keys)->size;
+ }
/* Save this now, since use of minibuffer will clobber it. */
- prefix_arg = current_perdisplay->Vcurrent_prefix_arg;
+ prefix_arg = Vcurrent_prefix_arg;
retry:
specs = Fcar (Fcdr (specs));
}
else if (EQ (funcar, Qmocklisp))
- return ml_apply (fun, Qinteractive);
+ {
+ single_kboard_state ();
+ return ml_apply (fun, Qinteractive);
+ }
else
goto lose;
{
/* Make a copy of string so that if a GC relocates specs,
`string' will still be valid. */
- string = (unsigned char *) alloca (XSTRING (specs)->size + 1);
- bcopy (XSTRING (specs)->data, string, XSTRING (specs)->size + 1);
+ string = (unsigned char *) alloca (STRING_BYTES (XSTRING (specs)) + 1);
+ bcopy (XSTRING (specs)->data, string,
+ STRING_BYTES (XSTRING (specs)) + 1);
}
else if (string == 0)
{
Lisp_Object input;
- i = num_input_chars;
+ i = num_input_events;
input = specs;
/* Compute the arg values using the user's expression. */
specs = Feval (specs);
- if (i != num_input_chars || !NILP (record))
+ if (i != num_input_events || !NILP (record_flag))
{
/* We should record this command on the command history. */
Lisp_Object values, car;
look for elements that were computed with (region-beginning)
or (region-end), and put those expressions into VALUES
instead of the present values. */
- car = Fcar (input);
- if (EQ (car, Qlist))
+ if (CONSP (input))
{
- Lisp_Object intail, valtail;
- for (intail = Fcdr (input), valtail = values;
- CONSP (valtail);
- intail = Fcdr (intail), valtail = Fcdr (valtail))
+ car = XCONS (input)->car;
+ /* Skip through certain special forms. */
+ while (EQ (car, Qlet) || EQ (car, Qletx)
+ || EQ (car, Qsave_excursion))
+ {
+ while (CONSP (XCONS (input)->cdr))
+ input = XCONS (input)->cdr;
+ input = XCONS (input)->car;
+ if (!CONSP (input))
+ break;
+ car = XCONS (input)->car;
+ }
+ if (EQ (car, Qlist))
{
- Lisp_Object elt;
- elt = Fcar (intail);
- if (CONSP (elt))
+ Lisp_Object intail, valtail;
+ for (intail = Fcdr (input), valtail = values;
+ CONSP (valtail);
+ intail = Fcdr (intail), valtail = Fcdr (valtail))
{
- Lisp_Object presflag;
- presflag = Fmemq (Fcar (elt), preserved_fns);
- if (!NILP (presflag))
- Fsetcar (valtail, Fcar (intail));
+ Lisp_Object elt;
+ elt = Fcar (intail);
+ if (CONSP (elt))
+ {
+ Lisp_Object presflag;
+ presflag = Fmemq (Fcar (elt), preserved_fns);
+ if (!NILP (presflag))
+ Fsetcar (valtail, Fcar (intail));
+ }
}
}
}
Vcommand_history
= Fcons (Fcons (function, values), Vcommand_history);
}
+ single_kboard_state ();
return apply1 (function, specs);
}
/* Here if function specifies a string to control parsing the defaults */
/* Set next_event to point to the first event with parameters. */
- for (next_event = 0; next_event < this_command_key_count; next_event++)
- if (EVENT_HAS_PARAMETERS
- (XVECTOR (this_command_keys)->contents[next_event]))
+ for (next_event = 0; next_event < key_count; next_event++)
+ if (EVENT_HAS_PARAMETERS (XVECTOR (keys)->contents[next_event]))
break;
/* Handle special starting chars `*' and `@'. Also `-'. */
+ /* Note that `+' is reserved for user extensions. */
while (1)
{
- if (*string == '*')
+ if (*string == '+')
+ error ("`+' is not used in `interactive' for ordinary commands");
+ else if (*string == '*')
{
string++;
if (!NILP (current_buffer->read_only))
{
Lisp_Object event;
- event = XVECTOR (this_command_keys)->contents[next_event];
+ event = XVECTOR (keys)->contents[next_event];
if (EVENT_HAS_PARAMETERS (event)
+ && (event = XCONS (event)->cdr, CONSP (event))
&& (event = XCONS (event)->car, CONSP (event))
- && (event = XCONS (event)->car, CONSP (event))
- && (event = XCONS (event)->car), WINDOWP (event))
+ && (event = XCONS (event)->car, WINDOWP (event)))
{
if (MINI_WINDOW_P (XWINDOW (event))
&& ! (minibuf_level > 0 && EQ (event, minibuf_window)))
corresponding to the Lisp strings in visargs. */
for (j = 1; j < i; j++)
argstrings[j]
- = EQ (visargs[j], Qnil)
- ? (unsigned char *) ""
- : XSTRING (visargs[j])->data;
-
- doprnt (prompt, sizeof prompt, prompt1, 0, j - 1, argstrings + 1);
+ = (EQ (visargs[j], Qnil)
+ ? (unsigned char *) ""
+ : XSTRING (visargs[j])->data);
+
+ /* Process the format-string in prompt1, putting the output
+ into callint_message. Make callint_message bigger if necessary.
+ We don't use a buffer on the stack, because the contents
+ need to stay stable for a while. */
+ while (1)
+ {
+ int nchars = doprnt (callint_message, callint_message_size,
+ prompt1, (char *)0,
+ j - 1, (char **) argstrings + 1);
+ if (nchars < callint_message_size)
+ break;
+ callint_message_size *= 2;
+ callint_message
+ = (char *) xrealloc (callint_message, callint_message_size);
+ }
switch (*tem)
{
case 'a': /* Symbol defined as a function */
- visargs[i] = Fcompleting_read (build_string (prompt),
- Vobarray, Qfboundp, Qt, Qnil, Qnil);
+ visargs[i] = Fcompleting_read (build_string (callint_message),
+ Vobarray, Qfboundp, Qt,
+ Qnil, Qnil, Qnil, Qnil);
/* Passing args[i] directly stimulates compiler bug */
teml = visargs[i];
args[i] = Fintern (teml, Qnil);
args[i] = Fcurrent_buffer ();
if (EQ (selected_window, minibuf_window))
args[i] = Fother_buffer (args[i], Qnil);
- args[i] = Fread_buffer (build_string (prompt), args[i], Qt);
+ args[i] = Fread_buffer (build_string (callint_message), args[i], Qt);
break;
case 'B': /* Name of buffer, possibly nonexistent */
- args[i] = Fread_buffer (build_string (prompt),
+ args[i] = Fread_buffer (build_string (callint_message),
Fother_buffer (Fcurrent_buffer (), Qnil),
Qnil);
break;
case 'c': /* Character */
- message1 (prompt);
+ /* Use message_with_string rather than message1_nolog here,
+ so that nothing bad happens if callint_message is changed
+ within Fread_char (by a timer, for example). */
+ message_with_string ("%s", build_string (callint_message), 0);
args[i] = Fread_char ();
+ message1_nolog ((char *) 0);
/* Passing args[i] directly stimulates compiler bug */
teml = args[i];
visargs[i] = Fchar_to_string (teml);
break;
case 'C': /* Command: symbol with interactive function */
- visargs[i] = Fcompleting_read (build_string (prompt),
- Vobarray, Qcommandp, Qt, Qnil, Qnil);
+ visargs[i] = Fcompleting_read (build_string (callint_message),
+ Vobarray, Qcommandp,
+ Qt, Qnil, Qnil, Qnil, Qnil);
/* Passing args[i] directly stimulates compiler bug */
teml = visargs[i];
args[i] = Fintern (teml, Qnil);
break;
case 'd': /* Value of point. Does not do I/O. */
- XSETFASTINT (args[i], point);
+ set_marker_both (point_marker, Qnil, PT, PT_BYTE);
+ args[i] = point_marker;
/* visargs[i] = Qnil; */
varies[i] = 1;
break;
case 'D': /* Directory name. */
- args[i] = Fread_file_name (build_string (prompt), Qnil,
+ args[i] = Fread_file_name (build_string (callint_message), Qnil,
current_buffer->directory, Qlambda, Qnil);
break;
case 'f': /* Existing file name. */
- args[i] = Fread_file_name (build_string (prompt),
+ args[i] = Fread_file_name (build_string (callint_message),
Qnil, Qnil, Qlambda, Qnil);
break;
case 'F': /* Possibly nonexistent file name. */
- args[i] = Fread_file_name (build_string (prompt),
+ args[i] = Fread_file_name (build_string (callint_message),
Qnil, Qnil, Qnil, Qnil);
break;
+ case 'i': /* Ignore an argument -- Does not do I/O */
+ varies[i] = -1;
+ break;
+
case 'k': /* Key sequence. */
- args[i] = Fread_key_sequence (build_string (prompt), Qnil, Qnil);
- teml = args[i];
- visargs[i] = Fkey_description (teml);
+ {
+ int speccount1 = specpdl_ptr - specpdl;
+ specbind (Qcursor_in_echo_area, Qt);
+ args[i] = Fread_key_sequence (build_string (callint_message),
+ Qnil, Qnil, Qnil);
+ unbind_to (speccount1, Qnil);
+ teml = args[i];
+ visargs[i] = Fkey_description (teml);
+ }
break;
case 'K': /* Key sequence to be defined. */
- args[i] = Fread_key_sequence (build_string (prompt), Qnil, Qt);
- teml = args[i];
- visargs[i] = Fkey_description (teml);
+ {
+ int speccount1 = specpdl_ptr - specpdl;
+ specbind (Qcursor_in_echo_area, Qt);
+ args[i] = Fread_key_sequence (build_string (callint_message),
+ Qnil, Qt, Qnil);
+ teml = args[i];
+ visargs[i] = Fkey_description (teml);
+ unbind_to (speccount1, Qnil);
+ }
break;
case 'e': /* The invoking event. */
- if (next_event >= this_command_key_count)
+ if (next_event >= key_count)
error ("%s must be bound to an event with parameters",
(SYMBOLP (function)
? (char *) XSYMBOL (function)->name->data
: "command"));
- args[i] = XVECTOR (this_command_keys)->contents[next_event++];
+ args[i] = XVECTOR (keys)->contents[next_event++];
varies[i] = -1;
/* Find the next parameterized event. */
- while (next_event < this_command_key_count
+ while (next_event < key_count
&& ! (EVENT_HAS_PARAMETERS
- (XVECTOR (this_command_keys)->contents[next_event])))
+ (XVECTOR (keys)->contents[next_event])))
next_event++;
break;
case 'm': /* Value of mark. Does not do I/O. */
check_mark ();
/* visargs[i] = Qnil; */
- XSETFASTINT (args[i], marker_position (current_buffer->mark));
+ args[i] = current_buffer->mark;
varies[i] = 2;
break;
+ case 'M': /* String read via minibuffer with
+ inheriting the current input method. */
+ args[i] = Fread_string (build_string (callint_message),
+ Qnil, Qnil, Qnil, Qt);
+ break;
+
case 'N': /* Prefix arg, else number from minibuffer */
if (!NILP (prefix_arg))
goto have_prefix_arg;
case 'n': /* Read number from minibuffer. */
- do
- args[i] = Fread_minibuffer (build_string (prompt), Qnil);
- while (! NUMBERP (args[i]));
+ {
+ int first = 1;
+ do
+ {
+ Lisp_Object tem;
+ if (! first)
+ {
+ message ("Please enter a number.");
+ sit_for (1, 0, 0, 0, 0);
+ }
+ first = 0;
+
+ tem = Fread_from_minibuffer (build_string (callint_message),
+ Qnil, Qnil, Qnil, Qnil, Qnil,
+ Qnil);
+ if (! STRINGP (tem) || XSTRING (tem)->size == 0)
+ args[i] = Qnil;
+ else
+ args[i] = Fread (tem);
+ }
+ while (! NUMBERP (args[i]));
+ }
visargs[i] = last_minibuf_string;
break;
case 'P': /* Prefix arg in raw form. Does no I/O. */
- have_prefix_arg:
args[i] = prefix_arg;
/* visargs[i] = Qnil; */
varies[i] = -1;
break;
case 'p': /* Prefix arg converted to number. No I/O. */
+ have_prefix_arg:
args[i] = Fprefix_numeric_value (prefix_arg);
/* visargs[i] = Qnil; */
varies[i] = -1;
case 'r': /* Region, point and mark as 2 args. */
check_mark ();
+ set_marker_both (point_marker, Qnil, PT, PT_BYTE);
/* visargs[i+1] = Qnil; */
foo = marker_position (current_buffer->mark);
/* visargs[i] = Qnil; */
- XSETFASTINT (args[i], point < foo ? point : foo);
+ args[i] = PT < foo ? point_marker : current_buffer->mark;
varies[i] = 3;
- XSETFASTINT (args[++i], point > foo ? point : foo);
+ args[++i] = PT > foo ? point_marker : current_buffer->mark;
varies[i] = 4;
break;
- case 's': /* String read via minibuffer. */
- args[i] = Fread_string (build_string (prompt), Qnil, Qnil);
+ case 's': /* String read via minibuffer without
+ inheriting the current input method. */
+ args[i] = Fread_string (build_string (callint_message),
+ Qnil, Qnil, Qnil, Qnil);
break;
case 'S': /* Any symbol. */
- visargs[i] = Fread_string (build_string (prompt), Qnil, Qnil);
+ visargs[i] = Fread_string (build_string (callint_message),
+ Qnil, Qnil, Qnil, Qnil);
/* Passing args[i] directly stimulates compiler bug */
teml = visargs[i];
args[i] = Fintern (teml, Qnil);
case 'v': /* Variable name: symbol that is
user-variable-p. */
- args[i] = Fread_variable (build_string (prompt));
+ args[i] = Fread_variable (build_string (callint_message), Qnil);
visargs[i] = last_minibuf_string;
break;
case 'x': /* Lisp expression read but not evaluated */
- args[i] = Fread_minibuffer (build_string (prompt), Qnil);
+ args[i] = Fread_minibuffer (build_string (callint_message), Qnil);
visargs[i] = last_minibuf_string;
break;
case 'X': /* Lisp expression read and evaluated */
- args[i] = Feval_minibuffer (build_string (prompt), Qnil);
+ args[i] = Feval_minibuffer (build_string (callint_message), Qnil);
visargs[i] = last_minibuf_string;
break;
+ case 'Z': /* Coding-system symbol, or ignore the
+ argument if no prefix */
+ if (NILP (prefix_arg))
+ {
+ args[i] = Qnil;
+ varies[i] = -1;
+ }
+ else
+ {
+ args[i]
+ = Fread_non_nil_coding_system (build_string (callint_message));
+ visargs[i] = last_minibuf_string;
+ }
+ break;
+
+ case 'z': /* Coding-system symbol or nil */
+ args[i] = Fread_coding_system (build_string (callint_message), Qnil);
+ visargs[i] = last_minibuf_string;
+ break;
+
+ /* We have a case for `+' so we get an error
+ if anyone tries to define one here. */
+ case '+':
default:
- error ("Invalid control letter \"%c\" (%03o) in interactive calling string",
+ error ("Invalid control letter `%c' (%03o) in interactive calling string",
*tem, *tem);
}
args[0] = function;
- if (arg_from_tty || !NILP (record))
+ if (arg_from_tty || !NILP (record_flag))
{
visargs[0] = function;
for (i = 1; i < count + 1; i++)
- if (varies[i] > 0)
- visargs[i] = Fcons (intern (callint_argfuns[varies[i]]), Qnil);
- else
- visargs[i] = quotify_arg (args[i]);
+ {
+ if (varies[i] > 0)
+ visargs[i] = Fcons (intern (callint_argfuns[varies[i]]), Qnil);
+ else
+ visargs[i] = quotify_arg (args[i]);
+ }
Vcommand_history = Fcons (Flist (count + 1, visargs),
Vcommand_history);
}
+ /* If we used a marker to hold point, mark, or an end of the region,
+ temporarily, convert it to an integer now. */
+ for (i = 1; i <= count; i++)
+ if (varies[i] >= 1 && varies[i] <= 4)
+ XSETINT (args[i], marker_position (args[i]));
+
+ single_kboard_state ();
+
{
Lisp_Object val;
specbind (Qcommand_debug_status, Qnil);
DEFUN ("prefix-numeric-value", Fprefix_numeric_value, Sprefix_numeric_value,
1, 1, 0,
- "Return numeric meaning of raw prefix argument ARG.\n\
+ "Return numeric meaning of raw prefix argument RAW.\n\
A raw prefix argument is what you get from `(interactive \"P\")'.\n\
Its numeric meaning is what you would get from `(interactive \"p\")'.")
(raw)
XSETFASTINT (val, 1);
else if (EQ (raw, Qminus))
XSETINT (val, -1);
- else if (CONSP (raw))
+ else if (CONSP (raw) && INTEGERP (XCONS (raw)->car))
XSETINT (val, XINT (XCONS (raw)->car));
else if (INTEGERP (raw))
val = raw;
return val;
}
+void
syms_of_callint ()
{
+ point_marker = Fmake_marker ();
+ staticpro (&point_marker);
+
preserved_fns = Fcons (intern ("region-beginning"),
Fcons (intern ("region-end"),
Fcons (intern ("point"),
Qlist = intern ("list");
staticpro (&Qlist);
+ Qlet = intern ("let");
+ staticpro (&Qlet);
+ Qletx = intern ("let*");
+ staticpro (&Qletx);
+ Qsave_excursion = intern ("save-excursion");
+ staticpro (&Qsave_excursion);
Qminus = intern ("-");
staticpro (&Qminus);
Qmouse_leave_buffer_hook = intern ("mouse-leave-buffer-hook");
staticpro (&Qmouse_leave_buffer_hook);
+ callint_message_size = 100;
+ callint_message = (char *) xmalloc (callint_message_size);
+
+
+ DEFVAR_KBOARD ("prefix-arg", Vprefix_arg,
+ "The value of the prefix argument for the next editing command.\n\
+It may be a number, or the symbol `-' for just a minus sign as arg,\n\
+or a list whose car is a number for just one or more C-U's\n\
+or nil if no argument has been specified.\n\
+\n\
+You cannot examine this variable to find the argument for this command\n\
+since it has been set to nil by the time you can look.\n\
+Instead, you should use the variable `current-prefix-arg', although\n\
+normally commands can get this prefix argument with (interactive \"P\").");
+
+ DEFVAR_LISP ("current-prefix-arg", &Vcurrent_prefix_arg,
+ "The value of the prefix argument for this editing command.\n\
+It may be a number, or the symbol `-' for just a minus sign as arg,\n\
+or a list whose car is a number for just one or more C-U's\n\
+or nil if no argument has been specified.\n\
+This is what `(interactive \"P\")' returns.");
+ Vcurrent_prefix_arg = Qnil;
+
DEFVAR_LISP ("command-history", &Vcommand_history,
"List of recent commands that read arguments from terminal.\n\
Each command is represented as a form to evaluate.");
HCoop / bpt / emacs.git / blobdiff