/* Lisp functions pertaining to editing.
- Copyright (C) 1985,86,87,89,93,94,95,96,97,98, 1999, 2000, 2001, 2002
- Free Software Foundation, Inc.
+ Copyright (C) 1985, 1986, 1987, 1989, 1993, 1994, 1995, 1996,
+ 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
+ 2005, 2006 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, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA. */
#include <config.h>
#include <sys/types.h>
+#include <stdio.h>
-#ifdef VMS
-#include "vms-pwd.h"
-#else
+#ifdef HAVE_PWD_H
#include <pwd.h>
#endif
#include <unistd.h>
#endif
-/* Without this, sprintf on Mac OS Classic will produce wrong
- result. */
-#ifdef MAC_OS8
-#include <stdio.h>
+#ifdef HAVE_SYS_UTSNAME_H
+#include <sys/utsname.h>
+#endif
+
+#include "lisp.h"
+
+/* systime.h includes <sys/time.h> which, on some systems, is required
+ for <sys/resource.h>; thus systime.h must be included before
+ <sys/resource.h> */
+#include "systime.h"
+
+#if defined HAVE_SYS_RESOURCE_H
+#include <sys/resource.h>
#endif
#include <ctype.h>
-#include "lisp.h"
#include "intervals.h"
#include "buffer.h"
#include "charset.h"
#include "coding.h"
#include "frame.h"
#include "window.h"
-
-#include "systime.h"
+#include "blockinput.h"
#ifdef STDC_HEADERS
#include <float.h>
extern char **environ;
#endif
-extern Lisp_Object make_time P_ ((time_t));
+#define TM_YEAR_BASE 1900
+
+/* Nonzero if TM_YEAR is a struct tm's tm_year value that causes
+ asctime to have well-defined behavior. */
+#ifndef TM_YEAR_IN_ASCTIME_RANGE
+# define TM_YEAR_IN_ASCTIME_RANGE(tm_year) \
+ (1000 - TM_YEAR_BASE <= (tm_year) && (tm_year) <= 9999 - TM_YEAR_BASE)
+#endif
+
extern size_t emacs_strftimeu P_ ((char *, size_t, const char *,
const struct tm *, int));
static int tm_diff P_ ((struct tm *, struct tm *));
static void find_field P_ ((Lisp_Object, Lisp_Object, Lisp_Object, int *, Lisp_Object, int *));
static void update_buffer_properties P_ ((int, int));
static Lisp_Object region_limit P_ ((int));
-static int lisp_time_argument P_ ((Lisp_Object, time_t *, int *));
+int lisp_time_argument P_ ((Lisp_Object, time_t *, int *));
static size_t emacs_memftimeu P_ ((char *, size_t, const char *,
size_t, const struct tm *, int));
static void general_insert_function P_ ((void (*) (const unsigned char *, int),
Lisp_Object Vuser_real_login_name; /* login name of current user ID */
Lisp_Object Vuser_full_name; /* full name of current user */
Lisp_Object Vuser_login_name; /* user name from LOGNAME or USER */
+Lisp_Object Voperating_system_release; /* Operating System Release */
/* Symbol for the text property used to mark fields. */
Vuser_full_name = build_string (p);
else if (NILP (Vuser_full_name))
Vuser_full_name = build_string ("unknown");
+
+#ifdef HAVE_SYS_UTSNAME_H
+ {
+ struct utsname uts;
+ uname (&uts);
+ Voperating_system_release = build_string (uts.release);
+ }
+#else
+ Voperating_system_release = Qnil;
+#endif
}
\f
DEFUN ("char-to-string", Fchar_to_string, Schar_to_string, 1, 1, 0,
DEFUN ("goto-char", Fgoto_char, Sgoto_char, 1, 1, "NGoto char: ",
doc: /* Set point to POSITION, a number or marker.
-Beginning of buffer is position (point-min), end is (point-max).
-If the position is in the middle of a multibyte form,
-the actual point is set at the head of the multibyte form
-except in the case that `enable-multibyte-characters' is nil. */)
+Beginning of buffer is position (point-min), end is (point-max). */)
(position)
register Lisp_Object position;
{
{
extern Lisp_Object Vmark_even_if_inactive; /* Defined in callint.c. */
Lisp_Object m;
-
+
if (!NILP (Vtransient_mark_mode)
&& NILP (Vmark_even_if_inactive)
&& NILP (current_buffer->mark_active))
- Fsignal (Qmark_inactive, Qnil);
-
+ xsignal0 (Qmark_inactive);
+
m = Fmarker_position (current_buffer->mark);
if (NILP (m))
error ("The mark is not set now, so there is no region");
-
- if ((PT < XFASTINT (m)) == beginningp)
+
+ if ((PT < XFASTINT (m)) == (beginningp != 0))
m = make_number (PT);
return m;
}
}
\f
+/* Find all the overlays in the current buffer that touch position POS.
+ Return the number found, and store them in a vector in VEC
+ of length LEN. */
+
+static int
+overlays_around (pos, vec, len)
+ int pos;
+ Lisp_Object *vec;
+ int len;
+{
+ Lisp_Object overlay, start, end;
+ struct Lisp_Overlay *tail;
+ int startpos, endpos;
+ int idx = 0;
+
+ for (tail = current_buffer->overlays_before; tail; tail = tail->next)
+ {
+ XSETMISC (overlay, tail);
+
+ end = OVERLAY_END (overlay);
+ endpos = OVERLAY_POSITION (end);
+ if (endpos < pos)
+ break;
+ start = OVERLAY_START (overlay);
+ startpos = OVERLAY_POSITION (start);
+ if (startpos <= pos)
+ {
+ if (idx < len)
+ vec[idx] = overlay;
+ /* Keep counting overlays even if we can't return them all. */
+ idx++;
+ }
+ }
+
+ for (tail = current_buffer->overlays_after; tail; tail = tail->next)
+ {
+ XSETMISC (overlay, tail);
+
+ start = OVERLAY_START (overlay);
+ startpos = OVERLAY_POSITION (start);
+ if (pos < startpos)
+ break;
+ end = OVERLAY_END (overlay);
+ endpos = OVERLAY_POSITION (end);
+ if (pos <= endpos)
+ {
+ if (idx < len)
+ vec[idx] = overlay;
+ idx++;
+ }
+ }
+
+ return idx;
+}
+
+/* Return the value of property PROP, in OBJECT at POSITION.
+ It's the value of PROP that a char inserted at POSITION would get.
+ OBJECT is optional and defaults to the current buffer.
+ If OBJECT is a buffer, then overlay properties are considered as well as
+ text properties.
+ If OBJECT is a window, then that window's buffer is used, but
+ window-specific overlays are considered only if they are associated
+ with OBJECT. */
+Lisp_Object
+get_pos_property (position, prop, object)
+ Lisp_Object position, object;
+ register Lisp_Object prop;
+{
+ CHECK_NUMBER_COERCE_MARKER (position);
+
+ if (NILP (object))
+ XSETBUFFER (object, current_buffer);
+ else if (WINDOWP (object))
+ object = XWINDOW (object)->buffer;
+
+ if (!BUFFERP (object))
+ /* pos-property only makes sense in buffers right now, since strings
+ have no overlays and no notion of insertion for which stickiness
+ could be obeyed. */
+ return Fget_text_property (position, prop, object);
+ else
+ {
+ int posn = XINT (position);
+ int noverlays;
+ Lisp_Object *overlay_vec, tem;
+ struct buffer *obuf = current_buffer;
+
+ set_buffer_temp (XBUFFER (object));
+
+ /* First try with room for 40 overlays. */
+ noverlays = 40;
+ overlay_vec = (Lisp_Object *) alloca (noverlays * sizeof (Lisp_Object));
+ noverlays = overlays_around (posn, overlay_vec, noverlays);
+
+ /* If there are more than 40,
+ make enough space for all, and try again. */
+ if (noverlays > 40)
+ {
+ overlay_vec = (Lisp_Object *) alloca (noverlays * sizeof (Lisp_Object));
+ noverlays = overlays_around (posn, overlay_vec, noverlays);
+ }
+ noverlays = sort_overlays (overlay_vec, noverlays, NULL);
+
+ set_buffer_temp (obuf);
+
+ /* Now check the overlays in order of decreasing priority. */
+ while (--noverlays >= 0)
+ {
+ Lisp_Object ol = overlay_vec[noverlays];
+ tem = Foverlay_get (ol, prop);
+ if (!NILP (tem))
+ {
+ /* Check the overlay is indeed active at point. */
+ Lisp_Object start = OVERLAY_START (ol), finish = OVERLAY_END (ol);
+ if ((OVERLAY_POSITION (start) == posn
+ && XMARKER (start)->insertion_type == 1)
+ || (OVERLAY_POSITION (finish) == posn
+ && XMARKER (finish)->insertion_type == 0))
+ ; /* The overlay will not cover a char inserted at point. */
+ else
+ {
+ return tem;
+ }
+ }
+ }
+
+ { /* Now check the text-properties. */
+ int stickiness = text_property_stickiness (prop, position, object);
+ if (stickiness > 0)
+ return Fget_text_property (position, prop, object);
+ else if (stickiness < 0
+ && XINT (position) > BUF_BEGV (XBUFFER (object)))
+ return Fget_text_property (make_number (XINT (position) - 1),
+ prop, object);
+ else
+ return Qnil;
+ }
+ }
+}
+
/* Find the field surrounding POS in *BEG and *END. If POS is nil,
- the value of point is used instead. If BEG or END null,
+ the value of point is used instead. If BEG or END is null,
means don't store the beginning or end of the field.
BEG_LIMIT and END_LIMIT serve to limit the ranged of the returned
{
/* Fields right before and after the point. */
Lisp_Object before_field, after_field;
- /* If the fields came from overlays, the associated overlays.
- Qnil means they came from text-properties. */
- Lisp_Object before_overlay = Qnil, after_overlay = Qnil;
/* 1 if POS counts as the start of a field. */
int at_field_start = 0;
/* 1 if POS counts as the end of a field. */
CHECK_NUMBER_COERCE_MARKER (pos);
after_field
- = get_char_property_and_overlay (pos, Qfield, Qnil, &after_overlay);
+ = get_char_property_and_overlay (pos, Qfield, Qnil, NULL);
before_field
= (XFASTINT (pos) > BEGV
? get_char_property_and_overlay (make_number (XINT (pos) - 1),
- Qfield, Qnil,
- &before_overlay)
- : Qnil);
+ Qfield, Qnil, NULL)
+ /* Using nil here would be a more obvious choice, but it would
+ fail when the buffer starts with a non-sticky field. */
+ : after_field);
/* See if we need to handle the case where MERGE_AT_BOUNDARY is nil
and POS is at beginning of a field, which can also be interpreted
MERGE_AT_BOUNDARY is non-nil (see function comment) is actually the
more natural one; then we avoid treating the beginning of a field
specially. */
- if (NILP (merge_at_boundary) && !EQ (after_field, before_field))
- /* We are at a boundary, see which direction is inclusive. We
- decide by seeing which field the `field' property sticks to. */
- {
- /* -1 means insertions go into before_field, 1 means they go
- into after_field, 0 means neither. */
- int stickiness;
- /* Whether the before/after_field come from overlays. */
- int bop = !NILP (before_overlay);
- int aop = !NILP (after_overlay);
-
- if (bop && XMARKER (OVERLAY_END (before_overlay))->insertion_type == 1)
- /* before_field is from an overlay, which expands upon
- end-insertions. Note that it's possible for after_overlay to
- also eat insertions here, but then they will overlap, and
- there's not much we can do. */
- stickiness = -1;
- else if (aop
- && XMARKER (OVERLAY_START (after_overlay))->insertion_type == 0)
- /* after_field is from an overlay, which expand to contain
- start-insertions. */
- stickiness = 1;
- else if (bop && aop)
- /* Both fields come from overlays, but neither will contain any
- insertion here. */
- stickiness = 0;
- else if (bop)
- /* before_field is an overlay that won't eat any insertion, but
- after_field is from a text-property. Assume that the
- text-property continues underneath the overlay, and so will
- be inherited by any insertion, regardless of any stickiness
- settings. */
- stickiness = 1;
- else if (aop)
- /* Similarly, when after_field is the overlay. */
- stickiness = -1;
- else
- /* Both fields come from text-properties. Look for explicit
- stickiness properties. */
- stickiness = text_property_stickiness (Qfield, pos);
-
- if (stickiness > 0)
- at_field_start = 1;
- else if (stickiness < 0)
+ if (NILP (merge_at_boundary))
+ {
+ Lisp_Object field = get_pos_property (pos, Qfield, Qnil);
+ if (!EQ (field, after_field))
at_field_end = 1;
- else
- /* STICKINESS == 0 means that any inserted text will get a
- `field' char-property of nil, so check to see if that
- matches either of the adjacent characters (this being a
- kind of "stickiness by default"). */
- {
- if (NILP (before_field))
- at_field_end = 1; /* Sticks to the left. */
- else if (NILP (after_field))
- at_field_start = 1; /* Sticks to the right. */
- }
+ if (!EQ (field, before_field))
+ at_field_start = 1;
+ if (NILP (field) && at_field_start && at_field_end)
+ /* If an inserted char would have a nil field while the surrounding
+ text is non-nil, we're probably not looking at a
+ zero-length field, but instead at a non-nil field that's
+ not intended for editing (such as comint's prompts). */
+ at_field_end = at_field_start = 0;
}
/* Note about special `boundary' fields:
else
/* Find the previous field boundary. */
{
+ Lisp_Object p = pos;
if (!NILP (merge_at_boundary) && EQ (before_field, Qboundary))
/* Skip a `boundary' field. */
- pos = Fprevious_single_char_property_change (pos, Qfield, Qnil,
- beg_limit);
-
- pos = Fprevious_single_char_property_change (pos, Qfield, Qnil,
+ p = Fprevious_single_char_property_change (p, Qfield, Qnil,
beg_limit);
- *beg = NILP (pos) ? BEGV : XFASTINT (pos);
+
+ p = Fprevious_single_char_property_change (p, Qfield, Qnil,
+ beg_limit);
+ *beg = NILP (p) ? BEGV : XFASTINT (p);
}
}
{
/* If non-zero, then the original point, before re-positioning. */
int orig_point = 0;
+ int fwd;
+ Lisp_Object prev_old, prev_new;
if (NILP (new_pos))
/* Use the current point, and afterwards, set it. */
XSETFASTINT (new_pos, PT);
}
+ CHECK_NUMBER_COERCE_MARKER (new_pos);
+ CHECK_NUMBER_COERCE_MARKER (old_pos);
+
+ fwd = (XFASTINT (new_pos) > XFASTINT (old_pos));
+
+ prev_old = make_number (XFASTINT (old_pos) - 1);
+ prev_new = make_number (XFASTINT (new_pos) - 1);
+
if (NILP (Vinhibit_field_text_motion)
&& !EQ (new_pos, old_pos)
&& (!NILP (Fget_char_property (new_pos, Qfield, Qnil))
- || !NILP (Fget_char_property (old_pos, Qfield, Qnil)))
+ || !NILP (Fget_char_property (old_pos, Qfield, Qnil))
+ /* To recognize field boundaries, we must also look at the
+ previous positions; we could use `get_pos_property'
+ instead, but in itself that would fail inside non-sticky
+ fields (like comint prompts). */
+ || (XFASTINT (new_pos) > BEGV
+ && !NILP (Fget_char_property (prev_new, Qfield, Qnil)))
+ || (XFASTINT (old_pos) > BEGV
+ && !NILP (Fget_char_property (prev_old, Qfield, Qnil))))
&& (NILP (inhibit_capture_property)
- || NILP (Fget_char_property(old_pos, inhibit_capture_property, Qnil))))
- /* NEW_POS is not within the same field as OLD_POS; try to
- move NEW_POS so that it is. */
+ /* Field boundaries are again a problem; but now we must
+ decide the case exactly, so we need to call
+ `get_pos_property' as well. */
+ || (NILP (get_pos_property (old_pos, inhibit_capture_property, Qnil))
+ && (XFASTINT (old_pos) <= BEGV
+ || NILP (Fget_char_property (old_pos, inhibit_capture_property, Qnil))
+ || NILP (Fget_char_property (prev_old, inhibit_capture_property, Qnil))))))
+ /* It is possible that NEW_POS is not within the same field as
+ OLD_POS; try to move NEW_POS so that it is. */
{
- int fwd, shortage;
+ int shortage;
Lisp_Object field_bound;
- CHECK_NUMBER_COERCE_MARKER (new_pos);
- CHECK_NUMBER_COERCE_MARKER (old_pos);
-
- fwd = (XFASTINT (new_pos) > XFASTINT (old_pos));
-
if (fwd)
field_bound = Ffield_end (old_pos, escape_from_edge, new_pos);
else
With argument N not nil or 1, move forward N - 1 lines first.
If scan reaches end of buffer, return that position.
-The scan does not cross a field boundary unless doing so would move
-beyond there to a different line; if N is nil or 1, and scan starts at a
-field boundary, the scan stops as soon as it starts. To ignore field
+This function constrains the returned position to the current field
+unless that would be on a different line than the original,
+unconstrained result. If N is nil or 1, and a front-sticky field
+starts at point, the scan stops as soon as it starts. To ignore field
boundaries bind `inhibit-field-text-motion' to t.
This function does not move point. */)
Lisp_Object n;
{
int orig, orig_byte, end;
+ int count = SPECPDL_INDEX ();
+ specbind (Qinhibit_point_motion_hooks, Qt);
if (NILP (n))
XSETFASTINT (n, 1);
SET_PT_BOTH (orig, orig_byte);
+ unbind_to (count, Qnil);
+
/* Return END constrained to the current input field. */
return Fconstrain_to_field (make_number (end), make_number (orig),
XINT (n) != 1 ? Qt : Qnil,
With argument N not nil or 1, move forward N - 1 lines first.
If scan reaches end of buffer, return that position.
-The scan does not cross a field boundary unless doing so would move
-beyond there to a different line; if N is nil or 1, and scan starts at a
-field boundary, the scan stops as soon as it starts. To ignore field
+This function constrains the returned position to the current field
+unless that would be on a different line than the original,
+unconstrained result. If N is nil or 1, and a rear-sticky field ends
+at point, the scan stops as soon as it starts. To ignore field
boundaries bind `inhibit-field-text-motion' to t.
This function does not move point. */)
/* Point marker. */
tem = XCAR (info);
Fgoto_char (tem);
- unchain_marker (tem);
+ unchain_marker (XMARKER (tem));
/* Mark marker. */
info = XCDR (info);
omark = Fmarker_position (current_buffer->mark);
Fset_marker (current_buffer->mark, tem, Fcurrent_buffer ());
nmark = Fmarker_position (tem);
- unchain_marker (tem);
+ unchain_marker (XMARKER (tem));
/* visible */
info = XCDR (info);
visible_p = !NILP (XCAR (info));
-
+
#if 0 /* We used to make the current buffer visible in the selected window
if that was true previously. That avoids some anomalies.
But it creates others, and it wasn't documented, and it is simpler
DEFUN ("char-after", Fchar_after, Schar_after, 0, 1, 0,
doc: /* Return character in current buffer at position POS.
-POS is an integer or a marker.
+POS is an integer or a marker and defaults to point.
If POS is out of range, the value is nil. */)
(pos)
Lisp_Object pos;
DEFUN ("char-before", Fchar_before, Schar_before, 0, 1, 0,
doc: /* Return character in current buffer preceding position POS.
-POS is an integer or a marker.
+POS is an integer or a marker and defaults to point.
If POS is out of range, the value is nil. */)
(pos)
Lisp_Object pos;
DEFUN ("user-login-name", Fuser_login_name, Suser_login_name, 0, 1, 0,
doc: /* Return the name under which the user logged in, as a string.
This is based on the effective uid, not the real uid.
-Also, if the environment variable LOGNAME or USER is set,
+Also, if the environment variables LOGNAME or USER are set,
that determines the value of this function.
If optional argument UID is an integer, return the login name of the user
return Vuser_login_name;
CHECK_NUMBER (uid);
+ BLOCK_INPUT;
pw = (struct passwd *) getpwuid (XINT (uid));
+ UNBLOCK_INPUT;
return (pw ? build_string (pw->pw_name) : Qnil);
}
if (NILP (uid))
return Vuser_full_name;
else if (NUMBERP (uid))
- pw = (struct passwd *) getpwuid ((uid_t) XFLOATINT (uid));
+ {
+ BLOCK_INPUT;
+ pw = (struct passwd *) getpwuid ((uid_t) XFLOATINT (uid));
+ UNBLOCK_INPUT;
+ }
else if (STRINGP (uid))
- pw = (struct passwd *) getpwnam (SDATA (uid));
+ {
+ BLOCK_INPUT;
+ pw = (struct passwd *) getpwnam (SDATA (uid));
+ UNBLOCK_INPUT;
+ }
else
error ("Invalid UID specification");
}
DEFUN ("system-name", Fsystem_name, Ssystem_name, 0, 0, 0,
- doc: /* Return the name of the machine you are running on, as a string. */)
+ doc: /* Return the host name of the machine you are running on, as a string. */)
()
{
return Vsystem_name;
return "";
}
+char *
+get_operating_system_release()
+{
+ if (STRINGP (Voperating_system_release))
+ return (char *) SDATA (Voperating_system_release);
+ else
+ return "";
+}
+
DEFUN ("emacs-pid", Femacs_pid, Semacs_pid, 0, 0, 0,
doc: /* Return the process ID of Emacs, as an integer. */)
()
()
{
EMACS_TIME t;
- Lisp_Object result[3];
EMACS_GET_TIME (t);
- XSETINT (result[0], (EMACS_SECS (t) >> 16) & 0xffff);
- XSETINT (result[1], (EMACS_SECS (t) >> 0) & 0xffff);
- XSETINT (result[2], EMACS_USECS (t));
+ return list3 (make_number ((EMACS_SECS (t) >> 16) & 0xffff),
+ make_number ((EMACS_SECS (t) >> 0) & 0xffff),
+ make_number (EMACS_USECS (t)));
+}
+
+DEFUN ("get-internal-run-time", Fget_internal_run_time, Sget_internal_run_time,
+ 0, 0, 0,
+ doc: /* Return the current run time used by Emacs.
+The time is returned as a list of three integers. The first has the
+most significant 16 bits of the seconds, while the second has the
+least significant 16 bits. The third integer gives the microsecond
+count.
+
+On systems that can't determine the run time, get-internal-run-time
+does the same thing as current-time. The microsecond count is zero on
+systems that do not provide resolution finer than a second. */)
+ ()
+{
+#ifdef HAVE_GETRUSAGE
+ struct rusage usage;
+ int secs, usecs;
+
+ if (getrusage (RUSAGE_SELF, &usage) < 0)
+ /* This shouldn't happen. What action is appropriate? */
+ xsignal0 (Qerror);
+
+ /* Sum up user time and system time. */
+ secs = usage.ru_utime.tv_sec + usage.ru_stime.tv_sec;
+ usecs = usage.ru_utime.tv_usec + usage.ru_stime.tv_usec;
+ if (usecs >= 1000000)
+ {
+ usecs -= 1000000;
+ secs++;
+ }
- return Flist (3, result);
+ return list3 (make_number ((secs >> 16) & 0xffff),
+ make_number ((secs >> 0) & 0xffff),
+ make_number (usecs));
+#else
+ return Fcurrent_time ();
+#endif
}
\f
-static int
+int
lisp_time_argument (specified_time, result, usec)
Lisp_Object specified_time;
time_t *result;
DEFUN ("float-time", Ffloat_time, Sfloat_time, 0, 1, 0,
doc: /* Return the current time, as a float number of seconds since the epoch.
-If an argument is given, it specifies a time to convert to float
-instead of the current time. The argument should have the forms:
- (HIGH . LOW) or (HIGH LOW USEC) or (HIGH LOW . USEC).
-Thus, you can use times obtained from `current-time'
-and from `file-attributes'.
+If SPECIFIED-TIME is given, it is the time to convert to float
+instead of the current time. The argument should have the form
+(HIGH LOW . IGNORED). Thus, you can use times obtained from
+`current-time' and from `file-attributes'. SPECIFIED-TIME can also
+have the form (HIGH . LOW), but this is considered obsolete.
WARNING: Since the result is floating point, it may not be exact.
Do not use this function if precise time stamps are required. */)
DEFUN ("format-time-string", Fformat_time_string, Sformat_time_string, 1, 3, 0,
doc: /* Use FORMAT-STRING to format the time TIME, or now if omitted.
-TIME is specified as (HIGH LOW . IGNORED) or (HIGH . LOW), as returned by
-`current-time' or `file-attributes'.
+TIME is specified as (HIGH LOW . IGNORED), as returned by
+`current-time' or `file-attributes'. The obsolete form (HIGH . LOW)
+is also still accepted.
The third, optional, argument UNIVERSAL, if non-nil, means describe TIME
as Universal Time; nil means describe TIME in the local time zone.
The value is a copy of FORMAT-STRING, but with certain constructs replaced
SBYTES (format_string),
tm, ut);
if ((result > 0 && result < size) || (result == 0 && buf[0] == '\0'))
- return code_convert_string_norecord (make_string (buf, result),
+ return code_convert_string_norecord (make_unibyte_string (buf, result),
Vlocale_coding_system, 0);
/* If buffer was too small, make it bigger and try again. */
DEFUN ("decode-time", Fdecode_time, Sdecode_time, 0, 1, 0,
doc: /* Decode a time value as (SEC MINUTE HOUR DAY MONTH YEAR DOW DST ZONE).
-The optional SPECIFIED-TIME should be a list of (HIGH LOW . IGNORED)
-or (HIGH . LOW), as from `current-time' and `file-attributes', or `nil'
-to use the current time. The list has the following nine members:
-SEC is an integer between 0 and 60; SEC is 60 for a leap second, which
-only some operating systems support. MINUTE is an integer between 0 and 59.
-HOUR is an integer between 0 and 23. DAY is an integer between 1 and 31.
-MONTH is an integer between 1 and 12. YEAR is an integer indicating the
-four-digit year. DOW is the day of week, an integer between 0 and 6, where
-0 is Sunday. DST is t if daylight savings time is effect, otherwise nil.
-ZONE is an integer indicating the number of seconds east of Greenwich.
-(Note that Common Lisp has different meanings for DOW and ZONE.) */)
+The optional SPECIFIED-TIME should be a list of (HIGH LOW . IGNORED),
+as from `current-time' and `file-attributes', or `nil' to use the
+current time. The obsolete form (HIGH . LOW) is also still accepted.
+The list has the following nine members: SEC is an integer between 0
+and 60; SEC is 60 for a leap second, which only some operating systems
+support. MINUTE is an integer between 0 and 59. HOUR is an integer
+between 0 and 23. DAY is an integer between 1 and 31. MONTH is an
+integer between 1 and 12. YEAR is an integer indicating the
+four-digit year. DOW is the day of week, an integer between 0 and 6,
+where 0 is Sunday. DST is t if daylight savings time is effect,
+otherwise nil. ZONE is an integer indicating the number of seconds
+east of Greenwich. (Note that Common Lisp has different meanings for
+DOW and ZONE.) */)
(specified_time)
Lisp_Object specified_time;
{
XSETFASTINT (list_args[2], decoded_time->tm_hour);
XSETFASTINT (list_args[3], decoded_time->tm_mday);
XSETFASTINT (list_args[4], decoded_time->tm_mon + 1);
- XSETINT (list_args[5], decoded_time->tm_year + 1900);
+ /* On 64-bit machines an int is narrower than EMACS_INT, thus the
+ cast below avoids overflow in int arithmetics. */
+ XSETINT (list_args[5], TM_YEAR_BASE + (EMACS_INT) decoded_time->tm_year);
XSETFASTINT (list_args[6], decoded_time->tm_wday);
list_args[7] = (decoded_time->tm_isdst)? Qt : Qnil;
The intervening arguments are ignored.
This feature lets (apply 'encode-time (decode-time ...)) work.
-Out-of-range values for SEC, MINUTE, HOUR, DAY, or MONTH are allowed;
+Out-of-range values for SECOND, MINUTE, HOUR, DAY, or MONTH are allowed;
for example, a DAY of 0 means the day preceding the given month.
Year numbers less than 100 are treated just like other year numbers.
If you want them to stand for years in this century, you must do that yourself.
+Years before 1970 are not guaranteed to work. On some systems,
+year values as low as 1901 do work.
+
usage: (encode-time SECOND MINUTE HOUR DAY MONTH YEAR &optional ZONE) */)
(nargs, args)
int nargs;
tm.tm_hour = XINT (args[2]);
tm.tm_mday = XINT (args[3]);
tm.tm_mon = XINT (args[4]) - 1;
- tm.tm_year = XINT (args[5]) - 1900;
+ tm.tm_year = XINT (args[5]) - TM_YEAR_BASE;
tm.tm_isdst = -1;
if (CONSP (zone))
DEFUN ("current-time-string", Fcurrent_time_string, Scurrent_time_string, 0, 1, 0,
doc: /* Return the current time, as a human-readable string.
Programs can use this function to decode a time,
-since the number of columns in each field is fixed.
+since the number of columns in each field is fixed
+if the year is in the range 1000-9999.
The format is `Sun Sep 16 01:03:52 1973'.
However, see also the functions `decode-time' and `format-time-string'
which provide a much more powerful and general facility.
-If an argument is given, it specifies a time to format
-instead of the current time. The argument should have the form:
- (HIGH . LOW)
-or the form:
- (HIGH LOW . IGNORED).
-Thus, you can use times obtained from `current-time'
-and from `file-attributes'. */)
+If SPECIFIED-TIME is given, it is a time to format instead of the
+current time. The argument should have the form (HIGH LOW . IGNORED).
+Thus, you can use times obtained from `current-time' and from
+`file-attributes'. SPECIFIED-TIME can also have the form (HIGH . LOW),
+but this is considered obsolete. */)
(specified_time)
Lisp_Object specified_time;
{
time_t value;
- char buf[30];
+ struct tm *tm;
register char *tem;
if (! lisp_time_argument (specified_time, &value, NULL))
- value = -1;
- tem = (char *) ctime (&value);
+ error ("Invalid time specification");
- strncpy (buf, tem, 24);
- buf[24] = 0;
+ /* Convert to a string, checking for out-of-range time stamps.
+ Don't use 'ctime', as that might dump core if VALUE is out of
+ range. */
+ tm = localtime (&value);
+ if (! (tm && TM_YEAR_IN_ASCTIME_RANGE (tm->tm_year) && (tem = asctime (tm))))
+ error ("Specified time is not representable");
- return build_string (buf);
-}
+ /* Remove the trailing newline. */
+ tem[strlen (tem) - 1] = '\0';
-#define TM_YEAR_BASE 1900
+ return build_string (tem);
+}
/* Yield A - B, measured in seconds.
This function is copied from the GNU C Library. */
OFFSET is an integer number of seconds ahead of UTC (east of Greenwich).
A negative value means west of Greenwich.
NAME is a string giving the name of the time zone.
-If an argument is given, it specifies when the time zone offset is determined
-instead of using the current time. The argument should have the form:
- (HIGH . LOW)
-or the form:
- (HIGH LOW . IGNORED).
-Thus, you can use times obtained from `current-time'
-and from `file-attributes'.
+If SPECIFIED-TIME is given, the time zone offset is determined from it
+instead of using the current time. The argument should have the form
+(HIGH LOW . IGNORED). Thus, you can use times obtained from
+`current-time' and from `file-attributes'. SPECIFIED-TIME can also
+have the form (HIGH . LOW), but this is considered obsolete.
Some operating systems cannot provide all this information to Emacs;
in this case, `current-time-zone' returns a list containing nil for
for (argnum = 0; argnum < nargs; argnum++)
{
val = args[argnum];
- retry:
if (INTEGERP (val))
{
unsigned char str[MAX_MULTIBYTE_LENGTH];
inherit);
}
else
- {
- val = wrong_type_argument (Qchar_or_string_p, val);
- goto retry;
- }
+ wrong_type_argument (Qchar_or_string_p, val);
}
}
Any other markers at the point of insertion remain before the text.
If the current buffer is multibyte, unibyte strings are converted
-to multibyte for insertion (see `unibyte-char-to-multibyte').
+to multibyte for insertion (see `string-make-multibyte').
If the current buffer is unibyte, multibyte strings are converted
-to unibyte for insertion.
+to unibyte for insertion (see `string-make-unibyte').
+
+When operating on binary data, it may be necessary to preserve the
+original bytes of a unibyte string when inserting it into a multibyte
+buffer; to accomplish this, apply `string-as-multibyte' to the string
+and insert the result.
usage: (insert &rest ARGS) */)
(nargs, args)
DEFUN ("insert-buffer-substring", Finsert_buffer_substring, Sinsert_buffer_substring,
1, 3, 0,
- doc: /* Insert before point a substring of the contents of buffer BUFFER.
+ doc: /* Insert before point a substring of the contents of BUFFER.
BUFFER may be a buffer or a buffer name.
-Arguments START and END are character numbers specifying the substring.
-They default to the beginning and the end of BUFFER. */)
- (buf, start, end)
- Lisp_Object buf, start, end;
+Arguments START and END are character positions specifying the substring.
+They default to the values of (point-min) and (point-max) in BUFFER. */)
+ (buffer, start, end)
+ Lisp_Object buffer, start, end;
{
register int b, e, temp;
register struct buffer *bp, *obuf;
- Lisp_Object buffer;
+ Lisp_Object buf;
- buffer = Fget_buffer (buf);
- if (NILP (buffer))
- nsberror (buf);
- bp = XBUFFER (buffer);
+ buf = Fget_buffer (buffer);
+ if (NILP (buf))
+ nsberror (buffer);
+ bp = XBUFFER (buf);
if (NILP (bp->name))
error ("Selecting deleted buffer");
{
register int begp1, endp1, begp2, endp2, temp;
register struct buffer *bp1, *bp2;
- register Lisp_Object *trt
+ register Lisp_Object trt
= (!NILP (current_buffer->case_fold_search)
- ? XCHAR_TABLE (current_buffer->case_canon_table)->contents : 0);
+ ? current_buffer->case_canon_table : Qnil);
int chars = 0;
int i1, i2, i1_byte, i2_byte;
i2++;
}
- if (trt)
+ if (!NILP (trt))
{
- c1 = XINT (trt[c1]);
- c2 = XINT (trt[c2]);
+ c1 = CHAR_TABLE_TRANSLATE (trt, c1);
+ c2 = CHAR_TABLE_TRANSLATE (trt, c2);
}
if (c1 < c2)
return make_number (- 1 - chars);
Lisp_Object start, end, fromchar, tochar, noundo;
{
register int pos, pos_byte, stop, i, len, end_byte;
+ /* Keep track of the first change in the buffer:
+ if 0 we haven't found it yet.
+ if < 0 we've found it and we've run the before-change-function.
+ if > 0 we've actually performed it and the value is its position. */
int changed = 0;
unsigned char fromstr[MAX_MULTIBYTE_LENGTH], tostr[MAX_MULTIBYTE_LENGTH];
unsigned char *p;
int last_changed = 0;
int multibyte_p = !NILP (current_buffer->enable_multibyte_characters);
+ restart:
+
validate_region (&start, &end);
CHECK_NUMBER (fromchar);
CHECK_NUMBER (tochar);
{
len = CHAR_STRING (XFASTINT (fromchar), fromstr);
if (CHAR_STRING (XFASTINT (tochar), tostr) != len)
- error ("Characters in subst-char-in-region have different byte-lengths");
+ error ("Characters in `subst-char-in-region' have different byte-lengths");
if (!ASCII_BYTE_P (*tostr))
{
/* If *TOSTR is in the range 0x80..0x9F and TOCHAR is not a
That's faster than getting rid of things,
and it prevents even the entry for a first change.
Also inhibit locking the file. */
- if (!NILP (noundo))
+ if (!changed && !NILP (noundo))
{
record_unwind_protect (subst_char_in_region_unwind,
current_buffer->undo_list);
&& (len == 2 || (p[2] == fromstr[2]
&& (len == 3 || p[3] == fromstr[3]))))))
{
- if (! changed)
+ if (changed < 0)
+ /* We've already seen this and run the before-change-function;
+ this time we only need to record the actual position. */
+ changed = pos;
+ else if (!changed)
{
- changed = pos;
- modify_region (current_buffer, changed, XINT (end));
+ changed = -1;
+ modify_region (current_buffer, pos, XINT (end), 0);
if (! NILP (noundo))
{
if (MODIFF - 1 == current_buffer->auto_save_modified)
current_buffer->auto_save_modified++;
}
+
+ /* The before-change-function may have moved the gap
+ or even modified the buffer so we should start over. */
+ goto restart;
}
/* Take care of the case where the new character
pos++;
}
- if (changed)
+ if (changed > 0)
{
signal_after_change (changed,
last_changed - changed, last_changed - changed);
return Qnil;
}
-DEFUN ("translate-region", Ftranslate_region, Stranslate_region, 3, 3, 0,
- doc: /* From START to END, translate characters according to TABLE.
+DEFUN ("translate-region-internal", Ftranslate_region_internal,
+ Stranslate_region_internal, 3, 3, 0,
+ doc: /* Internal use only.
+From START to END, translate characters according to TABLE.
TABLE is a string; the Nth character in it is the mapping
for the character with code N.
-This function does not alter multibyte characters.
It returns the number of characters changed. */)
(start, end, table)
Lisp_Object start;
Lisp_Object end;
register Lisp_Object table;
{
- register int pos_byte, stop; /* Limits of the region. */
register unsigned char *tt; /* Trans table. */
register int nc; /* New character. */
int cnt; /* Number of changes made. */
int size; /* Size of translate table. */
- int pos;
+ int pos, pos_byte, end_pos;
int multibyte = !NILP (current_buffer->enable_multibyte_characters);
+ int string_multibyte;
validate_region (&start, &end);
- CHECK_STRING (table);
+ if (CHAR_TABLE_P (table))
+ {
+ size = MAX_CHAR;
+ tt = NULL;
+ }
+ else
+ {
+ CHECK_STRING (table);
- size = SBYTES (table);
- tt = SDATA (table);
+ if (! multibyte && (SCHARS (table) < SBYTES (table)))
+ table = string_make_unibyte (table);
+ string_multibyte = SCHARS (table) < SBYTES (table);
+ size = SCHARS (table);
+ tt = SDATA (table);
+ }
- pos_byte = CHAR_TO_BYTE (XINT (start));
- stop = CHAR_TO_BYTE (XINT (end));
- modify_region (current_buffer, XINT (start), XINT (end));
pos = XINT (start);
+ pos_byte = CHAR_TO_BYTE (pos);
+ end_pos = XINT (end);
+ modify_region (current_buffer, pos, XINT (end), 0);
cnt = 0;
- for (; pos_byte < stop; )
+ for (; pos < end_pos; )
{
register unsigned char *p = BYTE_POS_ADDR (pos_byte);
- int len;
+ unsigned char *str, buf[MAX_MULTIBYTE_LENGTH];
+ int len, str_len;
int oc;
- int pos_byte_next;
if (multibyte)
- oc = STRING_CHAR_AND_LENGTH (p, stop - pos_byte, len);
+ oc = STRING_CHAR_AND_LENGTH (p, MAX_MULTIBYTE_LENGTH, len);
else
oc = *p, len = 1;
- pos_byte_next = pos_byte + len;
- if (oc < size && len == 1)
+ if (oc < size)
{
- nc = tt[oc];
+ if (tt)
+ {
+ /* Reload as signal_after_change in last iteration may GC. */
+ tt = SDATA (table);
+ if (string_multibyte)
+ {
+ str = tt + string_char_to_byte (table, oc);
+ nc = STRING_CHAR_AND_LENGTH (str, MAX_MULTIBYTE_LENGTH,
+ str_len);
+ }
+ else
+ {
+ nc = tt[oc];
+ if (! ASCII_BYTE_P (nc) && multibyte)
+ {
+ str_len = CHAR_STRING (nc, buf);
+ str = buf;
+ }
+ else
+ {
+ str_len = 1;
+ str = tt + oc;
+ }
+ }
+ }
+ else
+ {
+ Lisp_Object val;
+ int c;
+
+ nc = oc;
+ val = CHAR_TABLE_REF (table, oc);
+ if (INTEGERP (val)
+ && (c = XINT (val), CHAR_VALID_P (c, 0)))
+ {
+ nc = c;
+ str_len = CHAR_STRING (nc, buf);
+ str = buf;
+ }
+ }
+
if (nc != oc)
{
- /* Take care of the case where the new character
- combines with neighboring bytes. */
- if (!ASCII_BYTE_P (nc)
- && (CHAR_HEAD_P (nc)
- ? ! CHAR_HEAD_P (FETCH_BYTE (pos_byte + 1))
- : (pos_byte > BEG_BYTE
- && ! ASCII_BYTE_P (FETCH_BYTE (pos_byte - 1)))))
+ if (len != str_len)
{
Lisp_Object string;
- string = make_multibyte_string (tt + oc, 1, 1);
/* This is less efficient, because it moves the gap,
- but it handles combining correctly. */
- replace_range (pos, pos + 1, string,
- 1, 0, 1);
- pos_byte_next = CHAR_TO_BYTE (pos);
- if (pos_byte_next > pos_byte)
- /* Before combining happened. We should not
- increment POS. So, to cancel the later
- increment of POS, we decrease it now. */
- pos--;
- else
- INC_POS (pos_byte_next);
+ but it should multibyte characters correctly. */
+ string = make_multibyte_string (str, 1, str_len);
+ replace_range (pos, pos + 1, string, 1, 0, 1);
+ len = str_len;
}
else
{
record_change (pos, 1);
- *p = nc;
+ while (str_len-- > 0)
+ *p++ = *str++;
signal_after_change (pos, 1, 1);
update_compositions (pos, pos + 1, CHECK_BORDER);
}
++cnt;
}
}
- pos_byte = pos_byte_next;
+ pos_byte += len;
pos++;
}
DEFUN ("delete-region", Fdelete_region, Sdelete_region, 2, 2, "r",
doc: /* Delete the text between point and mark.
+
When called from a program, expects two arguments,
positions (integers or markers) specifying the stretch to be deleted. */)
(start, end)
Lisp_Object start, end;
{
validate_region (&start, &end);
+ if (XINT (start) == XINT (end))
+ return build_string ("");
return del_range_1 (XINT (start), XINT (end), 1, 1);
}
\f
clip_to_bounds (beg->charpos, pt, end->charpos),
clip_to_bounds (beg->bytepos, BUF_PT_BYTE (buf),
end->bytepos));
-
+
buf->clip_changed = 1; /* Remember that the narrowing changed. */
}
}
static int message_length;
DEFUN ("message", Fmessage, Smessage, 1, MANY, 0,
- doc: /* Print a one-line message at the bottom of the screen.
+ doc: /* Display a message at the bottom of the screen.
+The message also goes into the `*Messages*' buffer.
+\(In keyboard macros, that's all it does.)
+Return the message.
+
The first argument is a format control string, and the rest are data
to be formatted under control of the string. See `format' for details.
-If the first argument is nil, clear any existing message; let the
-minibuffer contents show.
+Note: Use (message "%s" VALUE) to print the value of expressions and
+variables to avoid accidentally interpreting `%' as format specifiers.
+
+If the first argument is nil or the empty string, the function clears
+any existing message; this lets the minibuffer contents show. See
+also `current-message'.
-usage: (message STRING &rest ARGS) */)
+usage: (message FORMAT-STRING &rest ARGS) */)
(nargs, args)
int nargs;
Lisp_Object *args;
&& SBYTES (args[0]) == 0))
{
message (0);
- return Qnil;
+ return args[0];
}
else
{
The first argument is a format control string, and the rest are data
to be formatted under control of the string. See `format' for details.
-If the first argument is nil, clear any existing message; let the
-minibuffer contents show.
+If the first argument is nil or the empty string, clear any existing
+message; let the minibuffer contents show.
-usage: (message-box STRING &rest ARGS) */)
+usage: (message-box FORMAT-STRING &rest ARGS) */)
(nargs, args)
int nargs;
Lisp_Object *args;
pane = Fcons (Fcons (build_string ("OK"), Qt), Qnil);
GCPRO1 (pane);
menu = Fcons (val, pane);
- obj = Fx_popup_dialog (Qt, menu);
+ obj = Fx_popup_dialog (Qt, menu, Qt);
UNGCPRO;
return val;
}
The first argument is a format control string, and the rest are data
to be formatted under control of the string. See `format' for details.
-If the first argument is nil, clear any existing message; let the
-minibuffer contents show.
+If the first argument is nil or the empty string, clear any existing
+message; let the minibuffer contents show.
-usage: (message-or-box STRING &rest ARGS) */)
+usage: (message-or-box FORMAT-STRING &rest ARGS) */)
(nargs, args)
int nargs;
Lisp_Object *args;
string = Fcopy_sequence (args[0]);
for (i = 1; i < nargs; i += 2)
- {
- CHECK_SYMBOL (args[i]);
- properties = Fcons (args[i], Fcons (args[i + 1], properties));
- }
+ properties = Fcons (args[i], Fcons (args[i + 1], properties));
Fadd_text_properties (make_number (0),
make_number (SCHARS (string)),
: SBYTES (STRING))
DEFUN ("format", Fformat, Sformat, 1, MANY, 0,
- doc: /* Format a string out of a control-string and arguments.
-The first argument is a control string.
+ doc: /* Format a string out of a format-string and arguments.
+The first argument is a format control string.
The other arguments are substituted into it to make the result, a string.
It may contain %-sequences meaning to substitute the next argument.
%s means print a string argument. Actually, prints any object, with `princ'.
The argument used for %d, %o, %x, %e, %f, %g or %c must be a number.
Use %% to put a single % into the output.
+The basic structure of a %-sequence is
+ % <flags> <width> <precision> character
+where flags is [- #0]+, width is [0-9]+, and precision is .[0-9]+
+
usage: (format STRING &rest OBJECTS) */)
(nargs, args)
int nargs;
register int n; /* The number of the next arg to substitute */
register int total; /* An estimate of the final length */
char *buf, *p;
- register unsigned char *format, *end;
+ register unsigned char *format, *end, *format_start;
int nchars;
/* Nonzero if the output should be a multibyte string,
which is true if any of the inputs is one. */
must consider such a situation or not. */
int maybe_combine_byte;
unsigned char *this_format;
+ /* Precision for each spec, or -1, a flag value meaning no precision
+ was given in that spec. Element 0, corresonding to the format
+ string itself, will not be used. Element NARGS, corresponding to
+ no argument, *will* be assigned to in the case that a `%' and `.'
+ occur after the final format specifier. */
+ int *precision = (int *) (alloca((nargs + 1) * sizeof (int)));
int longest_format;
Lisp_Object val;
+ int arg_intervals = 0;
+ USE_SAFE_ALLOCA;
+
+ /* discarded[I] is 1 if byte I of the format
+ string was not copied into the output.
+ It is 2 if byte I was not the first byte of its character. */
+ char *discarded = 0;
+
+ /* Each element records, for one argument,
+ the start and end bytepos in the output string,
+ and whether the argument is a string with intervals.
+ info[0] is unused. Unused elements have -1 for start. */
struct info
{
- int start, end;
+ int start, end, intervals;
} *info = 0;
/* It should not be necessary to GCPRO ARGS, because
because of an object that we will pass through prin1,
and in that case, we won't know it here. */
for (n = 0; n < nargs; n++)
- if (STRINGP (args[n]) && STRING_MULTIBYTE (args[n]))
- multibyte = 1;
+ {
+ if (STRINGP (args[n]) && STRING_MULTIBYTE (args[n]))
+ multibyte = 1;
+ /* Piggyback on this loop to initialize precision[N]. */
+ precision[n] = -1;
+ }
+ precision[nargs] = -1;
CHECK_STRING (args[0]);
+ /* We may have to change "%S" to "%s". */
+ args[0] = Fcopy_sequence (args[0]);
+
+ /* GC should never happen here, so abort if it does. */
+ abort_on_gc++;
/* If we start out planning a unibyte result,
- and later find it has to be multibyte, we jump back to retry. */
+ then discover it has to be multibyte, we jump back to retry.
+ That can only happen from the first large while loop below. */
retry:
format = SDATA (args[0]);
+ format_start = format;
end = format + SBYTES (args[0]);
longest_format = 0;
/* Make room in result for all the non-%-codes in the control string. */
- total = 5 + CONVERTED_BYTE_SIZE (multibyte, args[0]);
+ total = 5 + CONVERTED_BYTE_SIZE (multibyte, args[0]) + 1;
+
+ /* Allocate the info and discarded tables. */
+ {
+ int nbytes = (nargs+1) * sizeof *info;
+ int i;
+ if (!info)
+ info = (struct info *) alloca (nbytes);
+ bzero (info, nbytes);
+ for (i = 0; i <= nargs; i++)
+ info[i].start = -1;
+ if (!discarded)
+ SAFE_ALLOCA (discarded, char *, SBYTES (args[0]));
+ bzero (discarded, SBYTES (args[0]));
+ }
/* Add to TOTAL enough space to hold the converted arguments. */
int thissize = 0;
int actual_width = 0;
unsigned char *this_format_start = format - 1;
- int field_width, precision;
+ int field_width = 0;
/* General format specifications look like
where
- flags ::= [#-* 0]+
+ flags ::= [- #0]+
field-width ::= [0-9]+
precision ::= '.' [0-9]*
the output should be padded with blanks, iff the output
string is shorter than field-width.
- if precision is specified, it specifies the number of
+ If precision is specified, it specifies the number of
digits to print after the '.' for floats, or the max.
number of chars to print from a string. */
- precision = field_width = 0;
-
- while (index ("-*# 0", *format))
+ while (format != end
+ && (*format == '-' || *format == '0' || *format == '#'
+ || * format == ' '))
++format;
if (*format >= '0' && *format <= '9')
field_width = 10 * field_width + *format - '0';
}
+ /* N is not incremented for another few lines below, so refer to
+ element N+1 (which might be precision[NARGS]). */
if (*format == '.')
{
++format;
- for (precision = 0; *format >= '0' && *format <= '9'; ++format)
- precision = 10 * precision + *format - '0';
+ for (precision[n+1] = 0; *format >= '0' && *format <= '9'; ++format)
+ precision[n+1] = 10 * precision[n+1] + *format - '0';
}
if (format - this_format_start + 1 > longest_format)
goto retry;
}
args[n] = tem;
+ /* If we restart the loop, we should not come here again
+ because args[n] is now a string and calling
+ Fprin1_to_string on it produces superflous double
+ quotes. So, change "%S" to "%s" now. */
+ *format = 's';
goto string;
}
else if (SYMBOLP (args[n]))
string:
if (*format != 's' && *format != 'S')
error ("Format specifier doesn't match argument type");
- thissize = CONVERTED_BYTE_SIZE (multibyte, args[n]);
+ /* In the case (PRECISION[N] > 0), THISSIZE may not need
+ to be as large as is calculated here. Easy check for
+ the case PRECISION = 0. */
+ thissize = precision[n] ? CONVERTED_BYTE_SIZE (multibyte, args[n]) : 0;
actual_width = lisp_string_width (args[n], -1, NULL, NULL);
}
/* Would get MPV otherwise, since Lisp_Int's `point' to low memory. */
error ("Invalid format operation %%%c", *format);
thissize = 30;
- if (*format == 'c'
- && (! SINGLE_BYTE_CHAR_P (XINT (args[n]))
- || XINT (args[n]) == 0))
+ if (*format == 'c')
{
- if (! multibyte)
+ if (! SINGLE_BYTE_CHAR_P (XINT (args[n]))
+ /* Note: No one can remember why we have to treat
+ the character 0 as a multibyte character here.
+ But, until it causes a real problem, let's
+ don't change it. */
+ || XINT (args[n]) == 0)
+ {
+ if (! multibyte)
+ {
+ multibyte = 1;
+ goto retry;
+ }
+ args[n] = Fchar_to_string (args[n]);
+ thissize = SBYTES (args[n]);
+ }
+ else if (! ASCII_BYTE_P (XINT (args[n])) && multibyte)
{
- multibyte = 1;
- goto retry;
+ args[n]
+ = Fchar_to_string (Funibyte_char_to_multibyte (args[n]));
+ thissize = SBYTES (args[n]);
}
- args[n] = Fchar_to_string (args[n]);
- thissize = SBYTES (args[n]);
}
}
else if (FLOATP (args[n]) && *format != 's')
{
if (! (*format == 'e' || *format == 'f' || *format == 'g'))
- args[n] = Ftruncate (args[n], Qnil);
+ {
+ if (*format != 'd' && *format != 'o' && *format != 'x'
+ && *format != 'i' && *format != 'X' && *format != 'c')
+ error ("Invalid format operation %%%c", *format);
+ args[n] = Ftruncate (args[n], Qnil);
+ }
/* Note that we're using sprintf to print floats,
so we have to take into account what that function
prints. */
- thissize = MAX_10_EXP + 100 + precision;
+ /* Filter out flag value of -1. */
+ thissize = (MAX_10_EXP + 100
+ + (precision[n] > 0 ? precision[n] : 0));
}
else
{
/* Anything but a string, convert to a string using princ. */
register Lisp_Object tem;
tem = Fprin1_to_string (args[n], Qt);
- if (STRING_MULTIBYTE (tem) & ! multibyte)
+ if (STRING_MULTIBYTE (tem) && ! multibyte)
{
multibyte = 1;
goto retry;
total += thissize + 4;
}
+ abort_on_gc--;
+
/* Now we can no longer jump to retry.
TOTAL and LONGEST_FORMAT are known for certain. */
/* Allocate the space for the result.
Note that TOTAL is an overestimate. */
- if (total < 1000)
- buf = (char *) alloca (total + 1);
- else
- buf = (char *) xmalloc (total + 1);
+ SAFE_ALLOCA (buf, char *, total);
p = buf;
nchars = 0;
/* Scan the format and store result in BUF. */
format = SDATA (args[0]);
+ format_start = format;
+ end = format + SBYTES (args[0]);
maybe_combine_byte = 0;
while (format != end)
{
int negative = 0;
unsigned char *this_format_start = format;
+ discarded[format - format_start] = 1;
format++;
- /* Process a numeric arg and skip it. */
+ while (index("-0# ", *format))
+ {
+ if (*format == '-')
+ {
+ negative = 1;
+ }
+ discarded[format - format_start] = 1;
+ ++format;
+ }
+
minlen = atoi (format);
- if (minlen < 0)
- minlen = - minlen, negative = 1;
- while ((*format >= '0' && *format <= '9')
- || *format == '-' || *format == ' ' || *format == '.')
- format++;
+ while ((*format >= '0' && *format <= '9') || *format == '.')
+ {
+ discarded[format - format_start] = 1;
+ format++;
+ }
if (*format++ == '%')
{
++n;
+ discarded[format - format_start - 1] = 1;
+ info[n].start = nchars;
+
if (STRINGP (args[n]))
{
- int padding, nbytes, start, end;
- int width = lisp_string_width (args[n], -1, NULL, NULL);
+ /* handle case (precision[n] >= 0) */
+
+ int width, padding;
+ int nbytes, start, end;
+ int nchars_string;
+
+ /* lisp_string_width ignores a precision of 0, but GNU
+ libc functions print 0 characters when the precision
+ is 0. Imitate libc behavior here. Changing
+ lisp_string_width is the right thing, and will be
+ done, but meanwhile we work with it. */
+
+ if (precision[n] == 0)
+ width = nchars_string = nbytes = 0;
+ else if (precision[n] > 0)
+ width = lisp_string_width (args[n], precision[n], &nchars_string, &nbytes);
+ else
+ { /* no precision spec given for this argument */
+ width = lisp_string_width (args[n], -1, NULL, NULL);
+ nbytes = SBYTES (args[n]);
+ nchars_string = SCHARS (args[n]);
+ }
/* If spec requires it, pad on right with spaces. */
padding = minlen - width;
++nchars;
}
- start = nchars;
-
+ info[n].start = start = nchars;
+ nchars += nchars_string;
+ end = nchars;
+
if (p > buf
&& multibyte
&& !ASCII_BYTE_P (*((unsigned char *) p - 1))
&& STRING_MULTIBYTE (args[n])
&& !CHAR_HEAD_P (SREF (args[n], 0)))
maybe_combine_byte = 1;
- nbytes = copy_text (SDATA (args[n]), p,
- SBYTES (args[n]),
- STRING_MULTIBYTE (args[n]), multibyte);
- p += nbytes;
- nchars += SCHARS (args[n]);
- end = nchars;
+
+ p += copy_text (SDATA (args[n]), p,
+ nbytes,
+ STRING_MULTIBYTE (args[n]), multibyte);
+
+ info[n].end = nchars;
if (negative)
while (padding-- > 0)
/* If this argument has text properties, record where
in the result string it appears. */
if (STRING_INTERVALS (args[n]))
- {
- if (!info)
- {
- int nbytes = nargs * sizeof *info;
- info = (struct info *) alloca (nbytes);
- bzero (info, nbytes);
- }
-
- info[n].start = start;
- info[n].end = end;
- }
+ info[n].intervals = arg_intervals = 1;
}
else if (INTEGERP (args[n]) || FLOATP (args[n]))
{
this_format[format - this_format_start] = 0;
if (INTEGERP (args[n]))
- sprintf (p, this_format, XINT (args[n]));
+ {
+ if (format[-1] == 'd')
+ sprintf (p, this_format, XINT (args[n]));
+ /* Don't sign-extend for octal or hex printing. */
+ else
+ sprintf (p, this_format, XUINT (args[n]));
+ }
else
sprintf (p, this_format, XFLOAT_DATA (args[n]));
maybe_combine_byte = 1;
this_nchars = strlen (p);
if (multibyte)
- p += str_to_multibyte (p, buf + total - p, this_nchars);
+ p += str_to_multibyte (p, buf + total - 1 - p, this_nchars);
else
p += this_nchars;
nchars += this_nchars;
+ info[n].end = nchars;
}
+
}
else if (STRING_MULTIBYTE (args[0]))
{
&& !CHAR_HEAD_P (*format))
maybe_combine_byte = 1;
*p++ = *format++;
- while (! CHAR_HEAD_P (*format)) *p++ = *format++;
+ while (! CHAR_HEAD_P (*format))
+ {
+ discarded[format - format_start] = 2;
+ *p++ = *format++;
+ }
nchars++;
}
else if (multibyte)
*p++ = *format++, nchars++;
}
- if (p > buf + total + 1)
+ if (p > buf + total)
abort ();
if (maybe_combine_byte)
val = make_specified_string (buf, nchars, p - buf, multibyte);
/* If we allocated BUF with malloc, free it too. */
- if (total >= 1000)
- xfree (buf);
+ SAFE_FREE ();
/* If the format string has text properties, or any of the string
arguments has text properties, set up text properties of the
result string. */
- if (STRING_INTERVALS (args[0]) || info)
+ if (STRING_INTERVALS (args[0]) || arg_intervals)
{
Lisp_Object len, new_len, props;
struct gcpro gcpro1;
if (CONSP (props))
{
- new_len = make_number (SCHARS (val));
- extend_property_ranges (props, len, new_len);
+ int bytepos = 0, position = 0, translated = 0, argn = 1;
+ Lisp_Object list;
+
+ /* Adjust the bounds of each text property
+ to the proper start and end in the output string. */
+
+ /* Put the positions in PROPS in increasing order, so that
+ we can do (effectively) one scan through the position
+ space of the format string. */
+ props = Fnreverse (props);
+
+ /* BYTEPOS is the byte position in the format string,
+ POSITION is the untranslated char position in it,
+ TRANSLATED is the translated char position in BUF,
+ and ARGN is the number of the next arg we will come to. */
+ for (list = props; CONSP (list); list = XCDR (list))
+ {
+ Lisp_Object item;
+ int pos;
+
+ item = XCAR (list);
+
+ /* First adjust the property start position. */
+ pos = XINT (XCAR (item));
+
+ /* Advance BYTEPOS, POSITION, TRANSLATED and ARGN
+ up to this position. */
+ for (; position < pos; bytepos++)
+ {
+ if (! discarded[bytepos])
+ position++, translated++;
+ else if (discarded[bytepos] == 1)
+ {
+ position++;
+ if (translated == info[argn].start)
+ {
+ translated += info[argn].end - info[argn].start;
+ argn++;
+ }
+ }
+ }
+
+ XSETCAR (item, make_number (translated));
+
+ /* Likewise adjust the property end position. */
+ pos = XINT (XCAR (XCDR (item)));
+
+ for (; position < pos; bytepos++)
+ {
+ if (! discarded[bytepos])
+ position++, translated++;
+ else if (discarded[bytepos] == 1)
+ {
+ position++;
+ if (translated == info[argn].start)
+ {
+ translated += info[argn].end - info[argn].start;
+ argn++;
+ }
+ }
+ }
+
+ XSETCAR (XCDR (item), make_number (translated));
+ }
+
add_text_properties_from_list (val, props, make_number (0));
}
/* Add text properties from arguments. */
- if (info)
+ if (arg_intervals)
for (n = 1; n < nargs; ++n)
- if (info[n].end)
+ if (info[n].intervals)
{
len = make_number (SCHARS (args[n]));
new_len = make_number (info[n].end - info[n].start);
return val;
}
-
-/* VARARGS 1 */
Lisp_Object
-#ifdef NO_ARG_ARRAY
-format1 (string1, arg0, arg1, arg2, arg3, arg4)
- EMACS_INT arg0, arg1, arg2, arg3, arg4;
-#else
-format1 (string1)
-#endif
+format2 (string1, arg0, arg1)
char *string1;
+ Lisp_Object arg0, arg1;
{
- char buf[100];
-#ifdef NO_ARG_ARRAY
- EMACS_INT args[5];
- args[0] = arg0;
- args[1] = arg1;
- args[2] = arg2;
- args[3] = arg3;
- args[4] = arg4;
- doprnt (buf, sizeof buf, string1, (char *)0, 5, (char **) args);
-#else
- doprnt (buf, sizeof buf, string1, (char *)0, 5, &string1 + 1);
-#endif
- return build_string (buf);
+ Lisp_Object args[3];
+ args[0] = build_string (string1);
+ args[1] = arg0;
+ args[2] = arg1;
+ return Fformat (3, args);
}
\f
DEFUN ("char-equal", Fchar_equal, Schar_equal, 2, 2, 0,
register int start1_byte, end1_byte, start2_byte, end2_byte;
{
register int amt1, amt1_byte, amt2, amt2_byte, diff, diff_byte, mpos;
- register Lisp_Object marker;
+ register struct Lisp_Marker *marker;
/* Update point as if it were a marker. */
if (PT < start1)
amt1_byte = (end2_byte - start2_byte) + (start2_byte - end1_byte);
amt2_byte = (end1_byte - start1_byte) + (start2_byte - end1_byte);
- for (marker = BUF_MARKERS (current_buffer); !NILP (marker);
- marker = XMARKER (marker)->chain)
+ for (marker = BUF_MARKERS (current_buffer); marker; marker = marker->next)
{
- mpos = marker_byte_position (marker);
+ mpos = marker->bytepos;
if (mpos >= start1_byte && mpos < end2_byte)
{
if (mpos < end1_byte)
mpos += diff_byte;
else
mpos -= amt2_byte;
- XMARKER (marker)->bytepos = mpos;
+ marker->bytepos = mpos;
}
- mpos = XMARKER (marker)->charpos;
+ mpos = marker->charpos;
if (mpos >= start1 && mpos < end2)
{
if (mpos < end1)
else
mpos -= amt2;
}
- XMARKER (marker)->charpos = mpos;
+ marker->charpos = mpos;
}
}
DEFUN ("transpose-regions", Ftranspose_regions, Stranspose_regions, 4, 5, 0,
- doc: /* Transpose region START1 to END1 with START2 to END2.
+ doc: /* Transpose region STARTR1 to ENDR1 with STARTR2 to ENDR2.
The regions may not be overlapping, because the size of the buffer is
never changed in a transposition.
-Optional fifth arg LEAVE_MARKERS, if non-nil, means don't update
+Optional fifth arg LEAVE-MARKERS, if non-nil, means don't update
any markers that happen to be located in the regions.
Transposing beyond buffer boundaries is an error. */)
if (end1 == start2) /* adjacent regions */
{
- modify_region (current_buffer, start1, end2);
+ modify_region (current_buffer, start1, end2, 0);
record_change (start1, len1 + len2);
tmp_interval1 = copy_intervals (cur_intv, start1, len1);
/* First region smaller than second. */
if (len1_byte < len2_byte)
{
- /* We use alloca only if it is small,
- because we want to avoid stack overflow. */
- if (len2_byte > 20000)
- temp = (unsigned char *) xmalloc (len2_byte);
- else
- temp = (unsigned char *) alloca (len2_byte);
+ USE_SAFE_ALLOCA;
+
+ SAFE_ALLOCA (temp, unsigned char *, len2_byte);
/* Don't precompute these addresses. We have to compute them
at the last minute, because the relocating allocator might
bcopy (start2_addr, temp, len2_byte);
bcopy (start1_addr, start1_addr + len2_byte, len1_byte);
bcopy (temp, start1_addr, len2_byte);
- if (len2_byte > 20000)
- xfree (temp);
+ SAFE_FREE ();
}
else
/* First region not smaller than second. */
{
- if (len1_byte > 20000)
- temp = (unsigned char *) xmalloc (len1_byte);
- else
- temp = (unsigned char *) alloca (len1_byte);
+ USE_SAFE_ALLOCA;
+
+ SAFE_ALLOCA (temp, unsigned char *, len1_byte);
start1_addr = BYTE_POS_ADDR (start1_byte);
start2_addr = BYTE_POS_ADDR (start2_byte);
bcopy (start1_addr, temp, len1_byte);
bcopy (start2_addr, start1_addr, len2_byte);
bcopy (temp, start1_addr + len2_byte, len1_byte);
- if (len1_byte > 20000)
- xfree (temp);
+ SAFE_FREE ();
}
graft_intervals_into_buffer (tmp_interval1, start1 + len2,
len1, current_buffer, 0);
if (len1_byte == len2_byte)
/* Regions are same size, though, how nice. */
{
- modify_region (current_buffer, start1, end1);
- modify_region (current_buffer, start2, end2);
+ USE_SAFE_ALLOCA;
+
+ modify_region (current_buffer, start1, end1, 0);
+ modify_region (current_buffer, start2, end2, 0);
record_change (start1, len1);
record_change (start2, len2);
tmp_interval1 = copy_intervals (cur_intv, start1, len1);
Fset_text_properties (make_number (start2), make_number (end2),
Qnil, Qnil);
- if (len1_byte > 20000)
- temp = (unsigned char *) xmalloc (len1_byte);
- else
- temp = (unsigned char *) alloca (len1_byte);
+ SAFE_ALLOCA (temp, unsigned char *, len1_byte);
start1_addr = BYTE_POS_ADDR (start1_byte);
start2_addr = BYTE_POS_ADDR (start2_byte);
bcopy (start1_addr, temp, len1_byte);
bcopy (start2_addr, start1_addr, len2_byte);
bcopy (temp, start2_addr, len1_byte);
- if (len1_byte > 20000)
- xfree (temp);
+ SAFE_FREE ();
+
graft_intervals_into_buffer (tmp_interval1, start2,
len1, current_buffer, 0);
graft_intervals_into_buffer (tmp_interval2, start1,
else if (len1_byte < len2_byte) /* Second region larger than first */
/* Non-adjacent & unequal size, area between must also be shifted. */
{
- modify_region (current_buffer, start1, end2);
+ USE_SAFE_ALLOCA;
+
+ modify_region (current_buffer, start1, end2, 0);
record_change (start1, (end2 - start1));
tmp_interval1 = copy_intervals (cur_intv, start1, len1);
tmp_interval_mid = copy_intervals (cur_intv, end1, len_mid);
Qnil, Qnil);
/* holds region 2 */
- if (len2_byte > 20000)
- temp = (unsigned char *) xmalloc (len2_byte);
- else
- temp = (unsigned char *) alloca (len2_byte);
+ SAFE_ALLOCA (temp, unsigned char *, len2_byte);
start1_addr = BYTE_POS_ADDR (start1_byte);
start2_addr = BYTE_POS_ADDR (start2_byte);
bcopy (start2_addr, temp, len2_byte);
bcopy (start1_addr, start1_addr + len_mid + len2_byte, len1_byte);
safe_bcopy (start1_addr + len1_byte, start1_addr + len2_byte, len_mid);
bcopy (temp, start1_addr, len2_byte);
- if (len2_byte > 20000)
- xfree (temp);
+ SAFE_FREE ();
+
graft_intervals_into_buffer (tmp_interval1, end2 - len1,
len1, current_buffer, 0);
graft_intervals_into_buffer (tmp_interval_mid, start1 + len2,
else
/* Second region smaller than first. */
{
+ USE_SAFE_ALLOCA;
+
record_change (start1, (end2 - start1));
- modify_region (current_buffer, start1, end2);
+ modify_region (current_buffer, start1, end2, 0);
tmp_interval1 = copy_intervals (cur_intv, start1, len1);
tmp_interval_mid = copy_intervals (cur_intv, end1, len_mid);
Qnil, Qnil);
/* holds region 1 */
- if (len1_byte > 20000)
- temp = (unsigned char *) xmalloc (len1_byte);
- else
- temp = (unsigned char *) alloca (len1_byte);
+ SAFE_ALLOCA (temp, unsigned char *, len1_byte);
start1_addr = BYTE_POS_ADDR (start1_byte);
start2_addr = BYTE_POS_ADDR (start2_byte);
bcopy (start1_addr, temp, len1_byte);
bcopy (start2_addr, start1_addr, len2_byte);
bcopy (start1_addr + len1_byte, start1_addr + len2_byte, len_mid);
bcopy (temp, start1_addr + len2_byte + len_mid, len1_byte);
- if (len1_byte > 20000)
- xfree (temp);
+ SAFE_FREE ();
+
graft_intervals_into_buffer (tmp_interval1, end2 - len1,
len1, current_buffer, 0);
graft_intervals_into_buffer (tmp_interval_mid, start1 + len2,
transpose_markers (start1, end1, start2, end2,
start1_byte, start1_byte + len1_byte,
start2_byte, start2_byte + len2_byte);
- fix_overlays_in_range (start1, end2);
+ fix_start_end_in_overlays (start1, end2);
}
return Qnil;
Vbuffer_access_fontified_property = Qnil;
DEFVAR_LISP ("system-name", &Vsystem_name,
- doc: /* The name of the machine Emacs is running on. */);
+ doc: /* The host name of the machine Emacs is running on. */);
DEFVAR_LISP ("user-full-name", &Vuser_full_name,
doc: /* The full name of the user logged in. */);
DEFVAR_LISP ("user-real-login-name", &Vuser_real_login_name,
doc: /* The user's name, based upon the real uid only. */);
+ DEFVAR_LISP ("operating-system-release", &Voperating_system_release,
+ doc: /* The release of the operating system Emacs is running on. */);
+
defsubr (&Spropertize);
defsubr (&Schar_equal);
defsubr (&Sgoto_char);
defsubr (&Suser_full_name);
defsubr (&Semacs_pid);
defsubr (&Scurrent_time);
+ defsubr (&Sget_internal_run_time);
defsubr (&Sformat_time_string);
defsubr (&Sfloat_time);
defsubr (&Sdecode_time);
defsubr (&Sinsert_buffer_substring);
defsubr (&Scompare_buffer_substrings);
defsubr (&Ssubst_char_in_region);
- defsubr (&Stranslate_region);
+ defsubr (&Stranslate_region_internal);
defsubr (&Sdelete_region);
defsubr (&Sdelete_and_extract_region);
defsubr (&Swiden);
defsubr (&Ssave_restriction);
defsubr (&Stranspose_regions);
}
+
+/* arch-tag: fc3827d8-6f60-4067-b11e-c3218031b018
+ (do not change this comment) */