+/* Buffer manipulation primitives for GNU Emacs.
+ Copyright (C) 1985, 1986, 1987, 1988, 1990 Free Software Foundation, Inc.
+
+This file is part of GNU Emacs.
+
+GNU Emacs is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 1, or (at your option)
+any later version.
+
+GNU Emacs is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+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. */
+
+
+#include <sys/param.h>
+
+#ifndef MAXPATHLEN
+/* in 4.1, param.h fails to define this. */
+#define MAXPATHLEN 1024
+#endif /* not MAXPATHLEN */
+
+#ifdef NULL
+#undef NULL
+#endif
+#include "config.h"
+#include "lisp.h"
+#include "window.h"
+#include "commands.h"
+#include "buffer.h"
+#include "syntax.h"
+
+struct buffer *current_buffer; /* the current buffer */
+
+/* First buffer in chain of all buffers (in reverse order of creation).
+ Threaded through ->next. */
+
+struct buffer *all_buffers;
+
+/* This structure holds the default values of the buffer-local variables
+ defined with DEFVAR_PER_BUFFER, that have special slots in each buffer.
+ The default value occupies the same slot in this structure
+ as an individual buffer's value occupies in that buffer.
+ Setting the default value also goes through the alist of buffers
+ and stores into each buffer that does not say it has a local value. */
+
+struct buffer buffer_defaults;
+/* A Lisp_Object pointer to the above, used for staticpro */
+static Lisp_Object Vbuffer_defaults;
+
+/* This structure marks which slots in a buffer have corresponding
+ default values in buffer_defaults.
+ Each such slot has a nonzero value in this structure.
+ The value has only one nonzero bit.
+
+ When a buffer has its own local value for a slot,
+ the bit for that slot (found in the same slot in this structure)
+ is turned on in the buffer's local_var_flags slot.
+
+ If a slot in this structure is -1, then even though there may
+ be a DEFVAR_PER_BUFFER for the slot, there is no default value for it;
+ and the corresponding slot in buffer_defaults is not used.
+
+ If a slot is -2, then there is no DEFVAR_PER_BUFFER for it,
+ but there is a default value which is copied into each buffer.
+
+ If a slot in this structure corresponding to a DEFVAR_PER_BUFFER is
+ zero, that is a bug */
+
+struct buffer buffer_local_flags;
+
+/* This structure holds the names of symbols whose values may be
+ buffer-local. It is indexed and accessed in the same way as the above. */
+
+struct buffer buffer_local_symbols;
+/* A Lisp_Object pointer to the above, used for staticpro */
+static Lisp_Object Vbuffer_local_symbols;
+
+Lisp_Object Fset_buffer ();
+
+/* Alist of all buffer names vs the buffers. */
+/* This used to be a variable, but is no longer,
+ to prevent lossage due to user rplac'ing this alist or its elements. */
+Lisp_Object Vbuffer_alist;
+
+Lisp_Object Qfundamental_mode, Qmode_class;
+
+Lisp_Object QSFundamental; /* A string "Fundamental" */
+
+/* For debugging; temporary. See set_buffer_internal. */
+/* Lisp_Object Qlisp_mode, Vcheck_symbol; */
+
+nsberror (spec)
+ Lisp_Object spec;
+{
+ if (XTYPE (spec) == Lisp_String)
+ error ("No buffer named %s", XSTRING (spec)->data);
+ error ("Invalid buffer argument");
+}
+\f
+DEFUN ("buffer-list", Fbuffer_list, Sbuffer_list, 0, 0, 0,
+ "Return a list of all buffers.")
+ ()
+{
+ return Fmapcar (Qcdr, Vbuffer_alist);
+}
+
+DEFUN ("get-buffer", Fget_buffer, Sget_buffer, 1, 1, 0,
+ "Return the buffer named NAME (a string).\n\
+It is found by looking up NAME in buffer-alist.\n\
+If there is no buffer named NAME, nil is returned.\n\
+NAME may also be a buffer; it is returned.")
+ (name)
+ register Lisp_Object name;
+{
+ if (XTYPE (name) == Lisp_Buffer)
+ return name;
+ CHECK_STRING (name, 0);
+
+ return Fcdr (Fassoc (name, Vbuffer_alist));
+}
+
+DEFUN ("get-file-buffer", Fget_file_buffer, Sget_file_buffer, 1, 1, 0,
+ "Return the buffer visiting file FILENAME (a string).\n\
+If there is no such buffer, nil is returned.")
+ (filename)
+ register Lisp_Object filename;
+{
+ register Lisp_Object tail, buf, tem;
+ CHECK_STRING (filename, 0);
+ filename = Fexpand_file_name (filename, Qnil);
+
+ for (tail = Vbuffer_alist; CONSP (tail); tail = XCONS (tail)->cdr)
+ {
+ buf = Fcdr (XCONS (tail)->car);
+ if (XTYPE (buf) != Lisp_Buffer) continue;
+ if (XTYPE (XBUFFER (buf)->filename) != Lisp_String) continue;
+ tem = Fstring_equal (XBUFFER (buf)->filename, filename);
+ if (!NULL (tem))
+ return buf;
+ }
+ return Qnil;
+}
+
+DEFUN ("get-buffer-create", Fget_buffer_create, Sget_buffer_create, 1, 1, 0,
+ "Like get-buffer but creates a buffer named NAME and returns it if none already exists.")
+ (name)
+ register Lisp_Object name;
+{
+ register Lisp_Object buf, function, tem;
+ int count = specpdl_ptr - specpdl;
+ register struct buffer *b;
+ register unsigned char *data;
+ /* register struct buffer *bx; */
+
+ buf = Fget_buffer (name);
+ if (!NULL (buf)) return buf;
+
+ b = (struct buffer *) malloc (sizeof (struct buffer));
+ if (!b) memory_full ();
+
+ BUF_GAP_SIZE (b) = 20;
+ data = (unsigned char *) malloc (BUF_GAP_SIZE (b));
+ if (!data)
+ {
+ free (b);
+ memory_full ();
+ }
+ BUF_BEG_ADDR (b) = data;
+ BUF_PT (b) = 1;
+ BUF_GPT (b) = 1;
+ BUF_BEGV (b) = 1;
+ BUF_ZV (b) = 1;
+ BUF_Z (b) = 1;
+ BUF_MODIFF (b) = 1;
+
+ /* Put this on the chain of all buffers including killed ones. */
+ b->next = all_buffers;
+ all_buffers = b;
+
+ /* Put this in the alist of all live buffers. */
+ XSET (buf, Lisp_Buffer, b);
+#if 0
+ XSETTYPE (buf, Lisp_Buffer);
+ bx = b; /* Use of bx avoids compiler bug on Sun */
+ XSETBUFFER (buf, bx);
+#endif
+ Vbuffer_alist = nconc2 (Vbuffer_alist, Fcons (Fcons (name, buf), Qnil));
+
+ b->mark = Fmake_marker ();
+ b->markers = Qnil;
+ b->name = name;
+
+ /* Enable undo in this buffer unless name starts with a space. */
+ if (XSTRING (name)->data[0] != ' ')
+ b->undo_list = Qnil;
+ else
+ b->undo_list = Qt;
+
+ reset_buffer (b);
+
+ function = buffer_defaults.major_mode;
+ if (NULL (function))
+ {
+ tem = Fget (current_buffer->major_mode, Qmode_class);
+ if (EQ (tem, Qnil))
+ function = current_buffer->major_mode;
+ }
+
+ if (NULL (function) || EQ (function, Qfundamental_mode))
+ return buf;
+
+ /* To select a nonfundamental mode,
+ select the buffer temporarily and then call the mode function. */
+
+ record_unwind_protect (save_excursion_restore, save_excursion_save ());
+
+ Fset_buffer (buf);
+ call0 (function);
+
+ unbind_to (count);
+ return buf;
+}
+
+/* Reinitialize everything about a buffer except its name and contents. */
+
+void
+reset_buffer (b)
+ register struct buffer *b;
+{
+ b->filename = Qnil;
+ b->directory = (current_buffer) ? current_buffer->directory : Qnil;
+ b->modtime = 0;
+ b->save_modified = 1;
+ b->save_length = 0;
+ b->last_window_start = 1;
+ b->backed_up = Qnil;
+ b->auto_save_modified = 0;
+ b->auto_save_file_name = Qnil;
+ b->read_only = Qnil;
+ reset_buffer_local_variables(b);
+}
+
+reset_buffer_local_variables(b)
+ register struct buffer *b;
+{
+ register int offset;
+
+ /* Reset the major mode to Fundamental, together with all the
+ things that depend on the major mode.
+ default-major-mode is handled at a higher level.
+ We ignore it here. */
+ b->major_mode = Qfundamental_mode;
+ b->keymap = Qnil;
+ b->abbrev_table = Vfundamental_mode_abbrev_table;
+ b->mode_name = QSFundamental;
+
+ /* Reset all per-buffer variables to their defaults. */
+ b->local_var_alist = Qnil;
+ b->local_var_flags = 0;
+
+ /* For each slot that has a default value,
+ copy that into the slot. */
+
+ for (offset = (char *)&buffer_local_flags.name - (char *)&buffer_local_flags;
+ offset < sizeof (struct buffer);
+ offset += sizeof (Lisp_Object)) /* sizeof int == sizeof Lisp_Object */
+ if (*(int *)(offset + (char *) &buffer_local_flags) > 0
+ || *(int *)(offset + (char *) &buffer_local_flags) == -2)
+ *(Lisp_Object *)(offset + (char *)b) =
+ *(Lisp_Object *)(offset + (char *)&buffer_defaults);
+}
+
+DEFUN ("generate-new-buffer", Fgenerate_new_buffer, Sgenerate_new_buffer,
+ 1, 1, 0,
+ "Creates and returns a buffer named NAME if one does not already exist,\n\
+else tries adding successive suffixes to NAME until a new buffer-name is\n\
+formed, then creates and returns a new buffer with that new name.")
+ (name)
+ register Lisp_Object name;
+{
+ register Lisp_Object gentemp, tem;
+ int count;
+ char number[10];
+
+ CHECK_STRING (name, 0);
+
+ tem = Fget_buffer (name);
+ if (NULL (tem))
+ return Fget_buffer_create (name);
+
+ count = 1;
+ while (1)
+ {
+ sprintf (number, "<%d>", ++count);
+ gentemp = concat2 (name, build_string (number));
+ tem = Fget_buffer (gentemp);
+ if (NULL (tem))
+ return Fget_buffer_create (gentemp);
+ }
+}
+
+\f
+DEFUN ("buffer-name", Fbuffer_name, Sbuffer_name, 0, 1, 0,
+ "Return the name of BUFFER, as a string.\n\
+No arg means return name of current buffer.")
+ (buffer)
+ register Lisp_Object buffer;
+{
+ if (NULL (buffer))
+ return current_buffer->name;
+ CHECK_BUFFER (buffer, 0);
+ return XBUFFER (buffer)->name;
+}
+
+#ifdef NOTDEF /* Useless. If you need this, you should be using `eq'
+ DEFUN ("buffer-number", Fbuffer_number, Sbuffer_number, 0, 1, 0,
+ "Return the number of BUFFER.\n\
+ No arg means return number of current buffer.")
+ (buffer)
+ Lisp_Object buffer;
+ {
+ if (NULL (buffer))
+ return current_buffer->number;
+ CHECK_BUFFER (buffer, 0);
+ return XBUFFER (buffer)->number;
+ }
+ */
+#endif NOTDEF
+
+DEFUN ("buffer-file-name", Fbuffer_file_name, Sbuffer_file_name, 0, 1, 0,
+ "Return name of file BUFFER is visiting, or NIL if none.\n\
+No argument means use current buffer as BUFFER.")
+ (buffer)
+ register Lisp_Object buffer;
+{
+ if (NULL (buffer))
+ return current_buffer->filename;
+ CHECK_BUFFER (buffer, 0);
+ return XBUFFER (buffer)->filename;
+}
+
+DEFUN ("buffer-local-variables", Fbuffer_local_variables,
+ Sbuffer_local_variables, 0, 1, 0,
+ "Return alist of variables that are buffer-local in BUFFER.\n\
+No argument means use current buffer as BUFFER.\n\
+Each element of the value looks like (SYMBOL . VALUE).\n\
+Note that storing new VALUEs in these elements\n\
+does not change the local values.")
+ (buffer)
+ register Lisp_Object buffer;
+{
+ register struct buffer *buf;
+ register Lisp_Object val;
+
+ if (NULL (buffer))
+ buf = current_buffer;
+ else
+ {
+ CHECK_BUFFER (buffer, 0);
+ buf = XBUFFER (buffer);
+ }
+
+ {
+ /* Reference each variable in the alist in our current buffer.
+ If inquiring about the current buffer, this gets the current values,
+ so store them into the alist so the alist is up to date.
+ If inquiring about some other buffer, this swaps out any values
+ for that buffer, making the alist up to date automatically. */
+ register Lisp_Object tem;
+ for (tem = buf->local_var_alist; CONSP (tem); tem = XCONS (tem)->cdr)
+ {
+ Lisp_Object v1 = Fsymbol_value (XCONS (XCONS (tem)->car)->car);
+ if (buf == current_buffer)
+ XCONS (XCONS (tem)->car)->cdr = v1;
+ }
+ }
+
+ /* Make a copy of the alist, to return it. */
+ val = Fcopy_alist (buf->local_var_alist);
+
+ /* Add on all the variables stored in special slots. */
+ {
+ register int offset, mask;
+
+ for (offset = (char *)&buffer_local_symbols.name - (char *)&buffer_local_symbols;
+ offset < sizeof (struct buffer);
+ offset += (sizeof (int))) /* sizeof int == sizeof Lisp_Object */
+ {
+ mask = *(int *)(offset + (char *) &buffer_local_flags);
+ if (mask == -1 || (buf->local_var_flags & mask))
+ val = Fcons (Fcons (*(Lisp_Object *)(offset + (char *)&buffer_local_symbols),
+ *(Lisp_Object *)(offset + (char *)buf)),
+ val);
+ }
+ }
+ return (val);
+}
+
+\f
+DEFUN ("buffer-modified-p", Fbuffer_modified_p, Sbuffer_modified_p,
+ 0, 1, 0,
+ "Return t if BUFFER is modified since file last read in or saved.\n\
+No argument means use current buffer as BUFFER.")
+ (buffer)
+ register Lisp_Object buffer;
+{
+ register struct buffer *buf;
+ if (NULL (buffer))
+ buf = current_buffer;
+ else
+ {
+ CHECK_BUFFER (buffer, 0);
+ buf = XBUFFER (buffer);
+ }
+
+ return buf->save_modified < BUF_MODIFF (buf) ? Qt : Qnil;
+}
+
+DEFUN ("set-buffer-modified-p", Fset_buffer_modified_p, Sset_buffer_modified_p,
+ 1, 1, 0,
+ "Mark current buffer as modified or unmodified according to FLAG.")
+ (flag)
+ register Lisp_Object flag;
+{
+ register int already;
+ register Lisp_Object fn;
+
+#ifdef CLASH_DETECTION
+ /* If buffer becoming modified, lock the file.
+ If buffer becoming unmodified, unlock the file. */
+
+ fn = current_buffer->filename;
+ if (!NULL (fn))
+ {
+ already = current_buffer->save_modified < MODIFF;
+ if (!already && !NULL (flag))
+ lock_file (fn);
+ else if (already && NULL (flag))
+ unlock_file (fn);
+ }
+#endif /* CLASH_DETECTION */
+
+ current_buffer->save_modified = NULL (flag) ? MODIFF : 0;
+ update_mode_lines++;
+ return flag;
+}
+\f
+DEFUN ("rename-buffer", Frename_buffer, Srename_buffer, 1, 1,
+ "sRename buffer (to new name): ",
+ "Change current buffer's name to NEWNAME (a string).")
+ (name)
+ register Lisp_Object name;
+{
+ register Lisp_Object tem, buf;
+
+ CHECK_STRING (name, 0);
+ tem = Fget_buffer (name);
+ if (!NULL (tem))
+ error ("Buffer name \"%s\" is in use", XSTRING (name)->data);
+
+ current_buffer->name = name;
+ XSET (buf, Lisp_Buffer, current_buffer);
+ Fsetcar (Frassq (buf, Vbuffer_alist), name);
+ if (NULL (current_buffer->filename) && !NULL (current_buffer->auto_save_file_name))
+ call0 (intern ("rename-auto-save-file"));
+ return Qnil;
+}
+
+DEFUN ("other-buffer", Fother_buffer, Sother_buffer, 0, 1, 0,
+ "Return most recently selected buffer other than BUFFER.\n\
+Buffers not visible in windows are preferred to visible buffers.\n\
+If no other exists, the buffer *scratch* is returned.\n\
+If BUFFER is omitted or nil, some interesting buffer is returned.")
+ (buffer)
+ register Lisp_Object buffer;
+{
+ register Lisp_Object tail, buf, notsogood, tem;
+ notsogood = Qnil;
+
+ for (tail = Vbuffer_alist; !NULL (tail); tail = Fcdr (tail))
+ {
+ buf = Fcdr (Fcar (tail));
+ if (EQ (buf, buffer))
+ continue;
+ if (XSTRING (XBUFFER (buf)->name)->data[0] == ' ')
+ continue;
+ tem = Fget_buffer_window (buf);
+ if (NULL (tem))
+ return buf;
+ if (NULL (notsogood))
+ notsogood = buf;
+ }
+ if (!NULL (notsogood))
+ return notsogood;
+ return Fget_buffer_create (build_string ("*scratch*"));
+}
+\f
+DEFUN ("buffer-flush-undo", Fbuffer_flush_undo, Sbuffer_flush_undo, 1, 1, 0,
+ "Make BUFFER stop keeping undo information.")
+ (buf)
+ register Lisp_Object buf;
+{
+ CHECK_BUFFER (buf, 0);
+ XBUFFER (buf)->undo_list = Qt;
+ return Qnil;
+}
+
+DEFUN ("buffer-enable-undo", Fbuffer_enable_undo, Sbuffer_enable_undo,
+ 0, 1, "",
+ "Start keeping undo information for buffer BUFFER (default is current buffer).")
+ (buf)
+ register Lisp_Object buf;
+{
+ if (NULL (buf))
+ {
+ if (EQ (current_buffer->undo_list, Qt))
+ current_buffer->undo_list = Qnil;
+ }
+ else
+ {
+ CHECK_BUFFER (buf, 0);
+ if (EQ (XBUFFER (buf)->undo_list, Qt))
+ XBUFFER (buf)->undo_list = Qnil;
+ }
+ return Qnil;
+}
+
+DEFUN ("kill-buffer", Fkill_buffer, Skill_buffer, 1, 1, "bKill buffer: ",
+ "One arg, a string or a buffer. Get rid of the specified buffer.\n\
+Any processes that have this buffer as the `process-buffer' are killed\n\
+with `delete-process'.")
+ (bufname)
+ Lisp_Object bufname;
+{
+ Lisp_Object buf;
+ register struct buffer *b;
+ register Lisp_Object tem;
+ register struct Lisp_Marker *m;
+ struct gcpro gcpro1, gcpro2;
+
+ if (NULL (bufname))
+ buf = Fcurrent_buffer ();
+ else
+ buf = Fget_buffer (bufname);
+ if (NULL (buf))
+ nsberror (bufname);
+
+ b = XBUFFER (buf);
+
+ if (FROM_KBD && !NULL (b->filename)
+ && BUF_MODIFF (b) > b->save_modified)
+ {
+ GCPRO2 (buf, bufname);
+ tem = Fyes_or_no_p (format1 ("Buffer %s modified; kill anyway? ",
+ XSTRING (b->name)->data));
+ UNGCPRO;
+ if (NULL (tem))
+ return Qnil;
+ }
+
+ /* We have no more questions to ask. Verify that it is valid
+ to kill the buffer. This must be done after the questions
+ since anything can happen within Fyes_or_no_p. */
+
+ /* Don't kill the minibuffer now current. */
+ if (EQ (buf, XWINDOW (minibuf_window)->buffer))
+ return Qnil;
+
+ if (NULL (b->name))
+ return Qnil;
+
+ /* Make this buffer not be current.
+ In the process, notice if this is the sole visible buffer
+ and give up if so. */
+ if (b == current_buffer)
+ {
+ tem = Fother_buffer (buf);
+ Fset_buffer (tem);
+ if (b == current_buffer)
+ return Qnil;
+ }
+
+ /* Now there is no question: we can kill the buffer. */
+
+#ifdef CLASH_DETECTION
+ /* Unlock this buffer's file, if it is locked. */
+ unlock_buffer (b);
+#endif /* CLASH_DETECTION */
+
+#ifdef subprocesses
+ kill_buffer_processes (buf);
+#endif subprocesses
+
+ tem = Vinhibit_quit;
+ Vinhibit_quit = Qt;
+ Vbuffer_alist = Fdelq (Frassq (buf, Vbuffer_alist), Vbuffer_alist);
+ Freplace_buffer_in_windows (buf);
+ Vinhibit_quit = tem;
+
+ /* Unchain all markers of this buffer
+ and leave them pointing nowhere. */
+ for (tem = b->markers; !EQ (tem, Qnil); )
+ {
+ m = XMARKER (tem);
+ m->buffer = 0;
+ tem = m->chain;
+ m->chain = Qnil;
+ }
+ b->markers = Qnil;
+
+ b->name = Qnil;
+ b->undo_list = Qnil;
+ free (BUF_BEG_ADDR (b));
+
+ return Qnil;
+}
+\f
+/* Put the element for buffer `buf' at the front of buffer-alist.
+ This is done when a buffer is selected "visibly".
+ It keeps buffer-alist in the order of recency of selection
+ so that other_buffer will return something nice. */
+
+record_buffer (buf)
+ Lisp_Object buf;
+{
+ register Lisp_Object link, prev;
+
+ prev = Qnil;
+ for (link = Vbuffer_alist; CONSP (link); link = XCONS (link)->cdr)
+ {
+ if (EQ (XCONS (XCONS (link)->car)->cdr, buf))
+ break;
+ prev = link;
+ }
+
+ /* Effectively do Vbuffer_alist = Fdelq (link, Vbuffer_alist)
+ but cannot use Fdelq here it that allows quitting. */
+
+ if (NULL (prev))
+ Vbuffer_alist = XCONS (Vbuffer_alist)->cdr;
+ else
+ XCONS (prev)->cdr = XCONS (XCONS (prev)->cdr)->cdr;
+
+ XCONS(link)->cdr = Vbuffer_alist;
+ Vbuffer_alist = link;
+}
+
+DEFUN ("switch-to-buffer", Fswitch_to_buffer, Sswitch_to_buffer, 1, 2, "BSwitch to buffer: ",
+ "Select buffer BUFFER in the current window.\n\
+BUFFER may be a buffer or a buffer name.\n\
+Optional second arg NORECORD non-nil means\n\
+do not put this buffer at the front of the list of recently selected ones.\n\
+\n\
+WARNING: This is NOT the way to work on another buffer temporarily\n\
+within a Lisp program! Use `set-buffer' instead. That avoids messing with\n\
+the window-buffer correspondances.")
+ (bufname, norecord)
+ Lisp_Object bufname, norecord;
+{
+ register Lisp_Object buf;
+
+ if (EQ (minibuf_window, selected_window))
+ error ("Cannot switch buffers in minibuffer window");
+
+ if (NULL (bufname))
+ buf = Fother_buffer (Fcurrent_buffer ());
+ else
+ buf = Fget_buffer_create (bufname);
+ Fset_buffer (buf);
+ if (NULL (norecord))
+ record_buffer (buf);
+
+ Fset_window_buffer (EQ (selected_window, minibuf_window)
+ ? Fnext_window (minibuf_window, Qnil) : selected_window,
+ buf);
+
+ return Qnil;
+}
+
+DEFUN ("pop-to-buffer", Fpop_to_buffer, Spop_to_buffer, 1, 2, 0,
+ "Select buffer BUFFER in some window, preferably a different one.\n\
+If pop-up-windows is non-nil, windows can be split to do this.\n\
+If second arg OTHER-WINDOW is non-nil, insist on finding another\n\
+window even if BUFFER is already visible in the selected window.")
+ (bufname, other)
+ Lisp_Object bufname, other;
+{
+ register Lisp_Object buf;
+ if (NULL (bufname))
+ buf = Fother_buffer (Fcurrent_buffer ());
+ else
+ buf = Fget_buffer_create (bufname);
+ Fset_buffer (buf);
+ record_buffer (buf);
+ Fselect_window (Fdisplay_buffer (buf, other));
+ return Qnil;
+}
+
+DEFUN ("current-buffer", Fcurrent_buffer, Scurrent_buffer, 0, 0, 0,
+ "Return the current buffer as a Lisp buffer object.")
+ ()
+{
+ register Lisp_Object buf;
+ XSET (buf, Lisp_Buffer, current_buffer);
+ return buf;
+}
+
+DEFUN ("set-buffer", Fset_buffer, Sset_buffer, 1, 1, 0,
+ "Set the current buffer to the buffer or buffer name supplied as argument.\n\
+That buffer will then be the default for editing operations and printing.\n\
+This function's effect can't last past end of current command\n\
+because returning to command level\n\
+selects the chosen buffer of the current window,\n\
+and this function has no effect on what buffer that is.\n\
+See also `save-excursion' when you want to select a buffer temporarily.\n\
+Use `switch-to-buffer' or `pop-to-buffer' for interactive buffer selection.")
+ (bufname)
+ register Lisp_Object bufname;
+{
+ register Lisp_Object buffer;
+ buffer = Fget_buffer (bufname);
+ if (NULL (buffer))
+ nsberror (bufname);
+ if (NULL (XBUFFER (buffer)->name))
+ error ("Selecting deleted buffer");
+ set_buffer_internal (XBUFFER (buffer));
+ return buffer;
+}
+
+DEFUN ("barf-if-buffer-read-only", Fbarf_if_buffer_read_only,
+ Sbarf_if_buffer_read_only, 0, 0, 0,
+ "Signal a buffer-read-only error if the current buffer is read-only.")
+ ()
+{
+ while (!NULL (current_buffer->read_only))
+ Fsignal (Qbuffer_read_only, (Fcons (Fcurrent_buffer (), Qnil)));
+ return Qnil;
+}
+
+DEFUN ("bury-buffer", Fbury_buffer, Sbury_buffer, 0, 1, "",
+ "Put BUFFER at the end of the list of all buffers.\n\
+There it is the least likely candidate for other-buffer to return;\n\
+thus, the least likely buffer for \\[switch-to-buffer] to select by default.")
+ (buf)
+ register Lisp_Object buf;
+{
+ register Lisp_Object aelt, link;
+
+ if (NULL (buf))
+ {
+ XSET (buf, Lisp_Buffer, current_buffer);
+ Fswitch_to_buffer (Fother_buffer (buf), Qnil);
+ }
+ else
+ {
+ Lisp_Object buf1;
+
+ buf1 = Fget_buffer (buf);
+ if (NULL (buf1))
+ nsberror (buf);
+ buf = buf1;
+ }
+
+ aelt = Frassq (buf, Vbuffer_alist);
+ link = Fmemq (aelt, Vbuffer_alist);
+ Vbuffer_alist = Fdelq (aelt, Vbuffer_alist);
+ XCONS (link)->cdr = Qnil;
+ Vbuffer_alist = nconc2 (Vbuffer_alist, link);
+ return Qnil;
+}
+\f
+extern int last_known_column_point;
+
+set_buffer_internal (b)
+ register struct buffer *b;
+{
+ register struct buffer *swb = 0;
+ register struct buffer *old_buf;
+ register Lisp_Object tail, valcontents;
+ enum Lisp_Type tem;
+
+ if (current_buffer == b)
+ return;
+
+#if 0
+ if (XWINDOW (selected_window) != 0)
+ swb = NULL (selected_window) ? 0 : XBUFFER (XWINDOW (selected_window)->buffer);
+#endif
+
+ windows_or_buffers_changed = 1;
+
+ /* Vcheck_symbol is set up to the symbol paragraph-start
+ in order to check for the bug that clobbers it. */
+/* if (current_buffer && EQ (current_buffer->major_mode, Qlisp_mode)
+ && XFASTINT (Vcheck_symbol) != 0
+ && !NULL (Vcheck_symbol))
+ {
+ valcontents = XSYMBOL (Vcheck_symbol)->value;
+ if (XTYPE (valcontents) != Lisp_Some_Buffer_Local_Value)
+ abort ();
+ if (current_buffer == XBUFFER (XCONS (XCONS (valcontents)->cdr)->car)
+ && (XTYPE (XCONS (valcontents)->car) != Lisp_String
+ || XSTRING (XCONS (valcontents)->car)->size != 6))
+ abort ();
+ }
+*/
+
+#if 0
+ if (current_buffer == swb && !NULL (selected_window))
+ Fset_marker (XWINDOW (selected_window)->pointm, make_number (point),
+ XWINDOW (selected_window)->buffer);
+#endif
+ old_buf = current_buffer;
+ current_buffer = b;
+#if 0
+ if (b == swb)
+ {
+ SET_PT (marker_position (XWINDOW (selected_window)->pointm));
+ if (point < BEGV)
+ point = BEGV;
+ if (point > ZV)
+ point = ZV;
+ }
+#endif
+ last_known_column_point = -1; /* invalidate indentation cache */
+
+ /* Look down buffer's list of local Lisp variables
+ to find and update any that forward into C variables. */
+
+ for (tail = b->local_var_alist; !NULL (tail); tail = XCONS (tail)->cdr)
+ {
+ valcontents = XSYMBOL (XCONS (XCONS (tail)->car)->car)->value;
+ if ((XTYPE (valcontents) == Lisp_Buffer_Local_Value
+ || XTYPE (valcontents) == Lisp_Some_Buffer_Local_Value)
+ && (tem = XTYPE (XCONS (valcontents)->car),
+ (tem == Lisp_Boolfwd || tem == Lisp_Intfwd
+ || tem == Lisp_Objfwd)))
+ /* Just reference the variable
+ to cause it to become set for this buffer. */
+ Fsymbol_value (XCONS (XCONS (tail)->car)->car);
+ }
+
+ /* Do the same with any others that were local to the previous buffer */
+
+ if (old_buf)
+ for (tail = old_buf->local_var_alist; !NULL (tail); tail = XCONS (tail)->cdr)
+ {
+ valcontents = XSYMBOL (XCONS (XCONS (tail)->car)->car)->value;
+ if ((XTYPE (valcontents) == Lisp_Buffer_Local_Value
+ || XTYPE (valcontents) == Lisp_Some_Buffer_Local_Value)
+ && (tem = XTYPE (XCONS (valcontents)->car),
+ (tem == Lisp_Boolfwd || tem == Lisp_Intfwd
+ || tem == Lisp_Objfwd)))
+ /* Just reference the variable
+ to cause it to become set for this buffer. */
+ Fsymbol_value (XCONS (XCONS (tail)->car)->car);
+ }
+ /* Vcheck_symbol is set up to the symbol paragraph-start
+ in order to check for the bug that clobbers it. */
+/*if (EQ (b->major_mode, Qlisp_mode)
+ && Vcheck_symbol
+ && !NULL (Vcheck_symbol))
+ {
+ valcontents = XSYMBOL (Vcheck_symbol)->value;
+ if (XTYPE (valcontents) != Lisp_Some_Buffer_Local_Value)
+ abort ();
+ if (b == XBUFFER (XCONS (XCONS (valcontents)->cdr)->car)
+ && (XTYPE (XCONS (valcontents)->car) != Lisp_String
+ || XSTRING (XCONS (valcontents)->car)->size != 6))
+ abort ();
+ Fsymbol_value (Vcheck_symbol);
+ valcontents = XSYMBOL (Vcheck_symbol)->value;
+ if (b != XBUFFER (XCONS (XCONS (valcontents)->cdr)->car)
+ || XTYPE (XCONS (valcontents)->car) != Lisp_String
+ || XSTRING (XCONS (valcontents)->car)->size != 6)
+ abort ();
+ }
+ */
+}
+\f
+DEFUN ("erase-buffer", Ferase_buffer, Serase_buffer, 0, 0, 0,
+ "Delete the entire contents of the current buffer.")
+ ()
+{
+ Fwiden ();
+ del_range (BEG, Z);
+ current_buffer->last_window_start = 1;
+ /* Prevent warnings, or suspension of auto saving, that would happen
+ if future size is less than past size. Use of erase-buffer
+ implies that the future text is not really related to the past text. */
+ XFASTINT (current_buffer->save_length) = 0;
+ return Qnil;
+}
+
+validate_region (b, e)
+ register Lisp_Object *b, *e;
+{
+ register int i;
+
+ CHECK_NUMBER_COERCE_MARKER (*b, 0);
+ CHECK_NUMBER_COERCE_MARKER (*e, 1);
+
+ if (XINT (*b) > XINT (*e))
+ {
+ i = XFASTINT (*b); /* This is legit even if *b is < 0 */
+ *b = *e;
+ XFASTINT (*e) = i; /* because this is all we do with i. */
+ }
+
+ if (!(BEGV <= XINT (*b) && XINT (*b) <= XINT (*e)
+ && XINT (*e) <= ZV))
+ args_out_of_range (*b, *e);
+}
+\f
+Lisp_Object
+list_buffers_1 (files)
+ Lisp_Object files;
+{
+ register Lisp_Object tail, tem, buf;
+ Lisp_Object col1, col2, col3, minspace;
+ register struct buffer *old = current_buffer, *b;
+ int desired_point = 0;
+
+ XFASTINT (col1) = 19;
+ XFASTINT (col2) = 25;
+ XFASTINT (col3) = 40;
+ XFASTINT (minspace) = 1;
+
+ Fset_buffer (Vstandard_output);
+
+ tail = intern ("Buffer-menu-mode");
+ if (!EQ (tail, current_buffer->major_mode)
+ && (tem = Ffboundp (tail), !NULL (tem)))
+ call0 (tail);
+ Fbuffer_flush_undo (Vstandard_output);
+ current_buffer->read_only = Qnil;
+
+ write_string ("\
+ MR Buffer Size Mode File\n\
+ -- ------ ---- ---- ----\n", -1);
+
+ for (tail = Vbuffer_alist; !NULL (tail); tail = Fcdr (tail))
+ {
+ buf = Fcdr (Fcar (tail));
+ b = XBUFFER (buf);
+ /* Don't mention the minibuffers. */
+ if (XSTRING (b->name)->data[0] == ' ')
+ continue;
+ /* Optionally don't mention buffers that lack files. */
+ if (!NULL (files) && NULL (b->filename))
+ continue;
+ /* Identify the current buffer. */
+ if (b == old)
+ desired_point = point;
+ write_string (b == old ? "." : " ", -1);
+ /* Identify modified buffers */
+ write_string (BUF_MODIFF (b) > b->save_modified ? "*" : " ", -1);
+ write_string (NULL (b->read_only) ? " " : "% ", -1);
+ Fprinc (b->name, Qnil);
+ Findent_to (col1, make_number (2));
+ XFASTINT (tem) = BUF_Z (b) - BUF_BEG (b);
+ Fprin1 (tem, Qnil);
+ Findent_to (col2, minspace);
+ Fprinc (b->mode_name, Qnil);
+ Findent_to (col3, minspace);
+ if (!NULL (b->filename))
+ Fprinc (b->filename, Qnil);
+ write_string ("\n", -1);
+ }
+
+ current_buffer->read_only = Qt;
+ set_buffer_internal (old);
+/* Foo. This doesn't work since temp_output_buffer_show sets point to 1
+ if (desired_point)
+ BUF_PT (XBUFFER (Vstandard_output)) = desired_point;
+ */
+ return Qnil;
+}
+
+DEFUN ("list-buffers", Flist_buffers, Slist_buffers, 0, 1, "P",
+ "Display a list of names of existing buffers.\n\
+Inserts it in buffer *Buffer List* and displays that.\n\
+Note that buffers with names starting with spaces are omitted.\n\
+Non-null optional arg FILES-ONLY means mention only file buffers.\n\
+\n\
+The M column contains a * for buffers that are modified.\n\
+The R column contains a % for buffers that are read-only.")
+ (files)
+ Lisp_Object files;
+{
+ internal_with_output_to_temp_buffer ("*Buffer List*",
+ list_buffers_1, files);
+ return Qnil;
+}
+
+DEFUN ("kill-all-local-variables", Fkill_all_local_variables, Skill_all_local_variables,
+ 0, 0, 0,
+ "Eliminate all the buffer-local variable values of the current buffer.\n\
+This buffer will then see the default values of all variables.")
+ ()
+{
+ register Lisp_Object alist, sym, tem;
+
+ for (alist = current_buffer->local_var_alist; !NULL (alist); alist = XCONS (alist)->cdr)
+ {
+ sym = XCONS (XCONS (alist)->car)->car;
+
+ /* Need not do anything if some other buffer's binding is now encached. */
+ tem = XCONS (XCONS (XSYMBOL (sym)->value)->cdr)->car;
+ if (XBUFFER (tem) == current_buffer)
+ {
+ /* Symbol is set up for this buffer's old local value.
+ Set it up for the current buffer with the default value. */
+
+ tem = XCONS (XCONS (XSYMBOL (sym)->value)->cdr)->cdr;
+ XCONS (tem)->car = tem;
+ XCONS (XCONS (XSYMBOL (sym)->value)->cdr)->car = Fcurrent_buffer ();
+ store_symval_forwarding (sym, XCONS (XSYMBOL (sym)->value)->car,
+ XCONS (tem)->cdr);
+ }
+ }
+
+ reset_buffer_local_variables (current_buffer);
+ return Qnil;
+}
+\f
+extern Lisp_Object Vprin1_to_string_buffer; /* in print.c */
+init_buffer_once ()
+{
+ register Lisp_Object tem;
+
+ /* Make sure all markable slots in buffer_defaults
+ are initialized reasonably, so mark_buffer won't choke. */
+ reset_buffer (&buffer_defaults);
+ reset_buffer (&buffer_local_symbols);
+ XSET (Vbuffer_defaults, Lisp_Buffer, &buffer_defaults);
+ XSET (Vbuffer_local_symbols, Lisp_Buffer, &buffer_local_symbols);
+
+ /* Set up the default values of various buffer slots. */
+ /* Must do these before making the first buffer! */
+
+ /* real setup is done in loaddefs.el */
+ buffer_defaults.mode_line_format = build_string ("%-");
+ buffer_defaults.abbrev_mode = Qnil;
+ buffer_defaults.overwrite_mode = Qnil;
+ buffer_defaults.case_fold_search = Qt;
+ buffer_defaults.auto_fill_hook = Qnil;
+ buffer_defaults.selective_display = Qnil;
+ buffer_defaults.selective_display_ellipses = Qt;
+ buffer_defaults.abbrev_table = Qnil;
+ buffer_defaults.undo_list = Qnil;
+
+ XFASTINT (buffer_defaults.tab_width) = 8;
+ buffer_defaults.truncate_lines = Qnil;
+ buffer_defaults.ctl_arrow = Qt;
+
+ XFASTINT (buffer_defaults.fill_column) = 70;
+ XFASTINT (buffer_defaults.left_margin) = 0;
+
+ /* Assign the local-flags to the slots that have default values.
+ The local flag is a bit that is used in the buffer
+ to say that it has its own local value for the slot.
+ The local flag bits are in the local_var_flags slot of the buffer. */
+
+ /* Nothing can work if this isn't true */
+ if (sizeof (int) != sizeof (Lisp_Object)) abort ();
+
+ /* 0 means not a lisp var, -1 means always local, else mask */
+ bzero (&buffer_local_flags, sizeof buffer_local_flags);
+ XFASTINT (buffer_local_flags.filename) = -1;
+ XFASTINT (buffer_local_flags.directory) = -1;
+ XFASTINT (buffer_local_flags.backed_up) = -1;
+ XFASTINT (buffer_local_flags.save_length) = -1;
+ XFASTINT (buffer_local_flags.auto_save_file_name) = -1;
+ XFASTINT (buffer_local_flags.read_only) = -1;
+ XFASTINT (buffer_local_flags.major_mode) = -1;
+ XFASTINT (buffer_local_flags.mode_name) = -1;
+ XFASTINT (buffer_local_flags.undo_list) = -1;
+
+ XFASTINT (buffer_local_flags.mode_line_format) = 1;
+ XFASTINT (buffer_local_flags.abbrev_mode) = 2;
+ XFASTINT (buffer_local_flags.overwrite_mode) = 4;
+ XFASTINT (buffer_local_flags.case_fold_search) = 8;
+ XFASTINT (buffer_local_flags.auto_fill_hook) = 0x10;
+ XFASTINT (buffer_local_flags.selective_display) = 0x20;
+ XFASTINT (buffer_local_flags.selective_display_ellipses) = 0x40;
+ XFASTINT (buffer_local_flags.tab_width) = 0x80;
+ XFASTINT (buffer_local_flags.truncate_lines) = 0x100;
+ XFASTINT (buffer_local_flags.ctl_arrow) = 0x200;
+ XFASTINT (buffer_local_flags.fill_column) = 0x400;
+ XFASTINT (buffer_local_flags.left_margin) = 0x800;
+ XFASTINT (buffer_local_flags.abbrev_table) = 0x1000;
+ XFASTINT (buffer_local_flags.syntax_table) = 0x2000;
+
+ Vbuffer_alist = Qnil;
+ current_buffer = 0;
+ all_buffers = 0;
+
+ QSFundamental = build_string ("Fundamental");
+
+ Qfundamental_mode = intern ("fundamental-mode");
+ buffer_defaults.major_mode = Qfundamental_mode;
+
+ Qmode_class = intern ("mode-class");
+
+ Vprin1_to_string_buffer = Fget_buffer_create (build_string (" prin1"));
+ /* super-magic invisible buffer */
+ Vbuffer_alist = Qnil;
+
+ tem = Fset_buffer (Fget_buffer_create (build_string ("*scratch*")));
+ /* Want no undo records for *scratch*
+ until after Emacs is dumped */
+ Fbuffer_flush_undo (tem);
+}
+
+init_buffer ()
+{
+ char buf[MAXPATHLEN+1];
+
+ Fset_buffer (Fget_buffer_create (build_string ("*scratch*")));
+ if (getwd (buf) == 0)
+ fatal ("`getwd' failed: %s.\n", buf);
+
+#ifndef VMS
+ /* Maybe this should really use some standard subroutine
+ whose definition is filename syntax dependent. */
+ if (buf[strlen (buf) - 1] != '/')
+ strcat (buf, "/");
+#endif /* not VMS */
+ current_buffer->directory = build_string (buf);
+}
+
+/* initialize the buffer routines */
+syms_of_buffer ()
+{
+ staticpro (&Vbuffer_defaults);
+ staticpro (&Vbuffer_local_symbols);
+ staticpro (&Qfundamental_mode);
+ staticpro (&Qmode_class);
+ staticpro (&QSFundamental);
+ staticpro (&Vbuffer_alist);
+
+/*staticpro (&Qlisp_mode);
+ Qlisp_mode = intern ("lisp-mode");
+*/
+
+ /* All these use DEFVAR_LISP_NOPRO because the slots in
+ buffer_defaults will all be marked via Vbuffer_defaults. */
+
+ DEFVAR_LISP_NOPRO ("default-mode-line-format",
+ &buffer_defaults.mode_line_format,
+ "Default mode-line-format for buffers that do not override it.\n\
+This is the same as (default-value 'mode-line-format).");
+
+ DEFVAR_LISP_NOPRO ("default-abbrev-mode",
+ &buffer_defaults.abbrev_mode,
+ "Default abbrev-mode for buffers that do not override it.\n\
+This is the same as (default-value 'abbrev-mode).");
+
+ DEFVAR_LISP_NOPRO ("default-ctl-arrow",
+ &buffer_defaults.ctl_arrow,
+ "Default ctl-arrow for buffers that do not override it.\n\
+This is the same as (default-value 'ctl-arrow).");
+
+ DEFVAR_LISP_NOPRO ("default-truncate-lines",
+ &buffer_defaults.truncate_lines,
+ "Default truncate-lines for buffers that do not override it.\n\
+This is the same as (default-value 'truncate-lines).");
+
+ DEFVAR_LISP_NOPRO ("default-fill-column",
+ &buffer_defaults.fill_column,
+ "Default fill-column for buffers that do not override it.\n\
+This is the same as (default-value 'fill-column).");
+
+ DEFVAR_LISP_NOPRO ("default-left-margin",
+ &buffer_defaults.left_margin,
+ "Default left-margin for buffers that do not override it.\n\
+This is the same as (default-value 'left-margin).");
+
+ DEFVAR_LISP_NOPRO ("default-tab-width",
+ &buffer_defaults.tab_width,
+ "Default tab-width for buffers that do not override it.\n\
+This is the same as (default-value 'tab-width).");
+
+ DEFVAR_LISP_NOPRO ("default-case-fold-search",
+ &buffer_defaults.case_fold_search,
+ "Default case-fold-search for buffers that do not override it.\n\
+This is the same as (default-value 'case-fold-search).");
+
+ DEFVAR_PER_BUFFER ("mode-line-format", ¤t_buffer->mode_line_format, 0);
+
+/* This doc string is too long for cpp; cpp dies.
+ DEFVAR_PER_BUFFER ("mode-line-format", ¤t_buffer->mode_line_format,
+ "Template for displaying mode line for current buffer.\n\
+Each buffer has its own value of this variable.\n\
+Value may be a string, a symbol or a list or cons cell.\n\
+For a symbol, its value is used (but it is ignored if t or nil).\n\
+ A string appearing directly as the value of a symbol is processed verbatim\n\
+ in that the %-constructs below are not recognized.\n\
+For a list whose car is a symbol, the symbol's value is taken,\n\
+ and if that is non-nil, the cadr of the list is processed recursively.\n\
+ Otherwise, the caddr of the list (if there is one) is processed.\n\
+For a list whose car is a string or list, each element is processed\n\
+ recursively and the results are effectively concatenated.\n\
+For a list whose car is an integer, the cdr of the list is processed\n\
+ and padded (if the number is positive) or truncated (if negative)\n\
+ to the width specified by that number.\n\
+A string is printed verbatim in the mode line except for %-constructs:\n\
+ (%-constructs are allowed when the string is the entire mode-line-format\n\
+ or when it is found in a cons-cell or a list)\n\
+ %b -- print buffer name. %f -- print visited file name.\n\
+ %* -- print *, % or hyphen. %m -- print value of mode-name (obsolete).\n\
+ %s -- print process status. %M -- print value of global-mode-string. (obs)\n\
+ %p -- print percent of buffer above top of window, or top, bot or all.\n\
+ %n -- print Narrow if appropriate.\n\
+ %[ -- print one [ for each recursive editing level. %] similar.\n\
+ %% -- print %. %- -- print infinitely many dashes.\n\
+Decimal digits after the % specify field width to which to pad.");
+*/
+
+ DEFVAR_LISP_NOPRO ("default-major-mode", &buffer_defaults.major_mode,
+ "*Major mode for new buffers. Defaults to fundamental-mode.\n\
+nil here means use current buffer's major mode.");
+
+ DEFVAR_PER_BUFFER ("major-mode", ¤t_buffer->major_mode,
+ "Symbol for current buffer's major mode.");
+
+ DEFVAR_PER_BUFFER ("abbrev-mode", ¤t_buffer->abbrev_mode,
+ "Non-nil turns on automatic expansion of abbrevs when inserted.\n\
+Automatically becomes local when set in any fashion.");
+
+ DEFVAR_PER_BUFFER ("case-fold-search", ¤t_buffer->case_fold_search,
+ "*Non-nil if searches should ignore case.\n\
+Automatically becomes local when set in any fashion.");
+
+ DEFVAR_PER_BUFFER ("mode-name", ¤t_buffer->mode_name,
+ "Pretty name of current buffer's major mode (a string).");
+
+ DEFVAR_PER_BUFFER ("fill-column", ¤t_buffer->fill_column,
+ "*Column beyond which automatic line-wrapping should happen.\n\
+Automatically becomes local when set in any fashion.");
+
+ DEFVAR_PER_BUFFER ("left-margin", ¤t_buffer->left_margin,
+ "*Column for the default indent-line-function to indent to.\n\
+Linefeed indents to this column in Fundamental mode.\n\
+Automatically becomes local when set in any fashion.");
+
+ DEFVAR_PER_BUFFER ("tab-width", ¤t_buffer->tab_width,
+ "*Distance between tab stops (for display of tab characters), in columns.\n\
+Automatically becomes local when set in any fashion.");
+
+ DEFVAR_PER_BUFFER ("ctl-arrow", ¤t_buffer->ctl_arrow,
+ "*Non-nil means display control chars with uparrow.\n\
+Nil means use backslash and octal digits.\n\
+Automatically becomes local when set in any fashion.");
+
+ DEFVAR_PER_BUFFER ("truncate-lines", ¤t_buffer->truncate_lines,
+ "*Non-nil means do not display continuation lines;\n\
+give each line of text one screen line.\n\
+Automatically becomes local when set in any fashion.\n\
+\n\
+Note that this is overridden by the variable\n\
+truncate-partial-width-windows if that variable is non-nil\n\
+and this buffer is not full-screen width.");
+
+ DEFVAR_PER_BUFFER ("default-directory", ¤t_buffer->directory,
+ "Name of default directory of current buffer. Should end with slash.");
+
+ DEFVAR_PER_BUFFER ("auto-fill-hook", ¤t_buffer->auto_fill_hook,
+ "Function called (if non-nil) after self-inserting a space at column beyond fill-column");
+
+ DEFVAR_PER_BUFFER ("buffer-file-name", ¤t_buffer->filename,
+ "Name of file visited in current buffer, or nil if not visiting a file.");
+
+ DEFVAR_PER_BUFFER ("buffer-auto-save-file-name",
+ ¤t_buffer->auto_save_file_name,
+ "Name of file for auto-saving current buffer,\n\
+or nil if buffer should not be auto-saved.");
+
+ DEFVAR_PER_BUFFER ("buffer-read-only", ¤t_buffer->read_only,
+ "Non-nil if this buffer is read-only.");
+
+ DEFVAR_PER_BUFFER ("buffer-backed-up", ¤t_buffer->backed_up,
+ "Non-nil if this buffer's file has been backed up.\n\
+Backing up is done before the first time the file is saved.");
+
+ DEFVAR_PER_BUFFER ("buffer-saved-size", ¤t_buffer->save_length,
+ "Length of current buffer when last read in, saved or auto-saved.\n\
+0 initially.");
+
+ DEFVAR_PER_BUFFER ("selective-display", ¤t_buffer->selective_display,
+ "t enables selective display:\n\
+ after a ^M, all the rest of the line is invisible.\n\
+ ^M's in the file are written into files as newlines.\n\
+Integer n as value means display only lines\n\
+ that start with less than n columns of space.\n\
+Automatically becomes local when set in any fashion.");
+
+ DEFVAR_PER_BUFFER ("selective-display-ellipses",
+ ¤t_buffer->selective_display_ellipses,
+ "t means display ... on previous line when a line is invisible.\n\
+Automatically becomes local when set in any fashion.");
+
+ DEFVAR_PER_BUFFER ("overwrite-mode", ¤t_buffer->overwrite_mode,
+ "Non-nil if self-insertion should replace existing text.\n\
+Automatically becomes local when set in any fashion.");
+
+ DEFVAR_PER_BUFFER ("buffer-undo-list", ¤t_buffer->undo_list,
+ "List of undo entries in current buffer.");
+
+/*DEFVAR_LISP ("debug-check-symbol", &Vcheck_symbol,
+ "Don't ask.");
+*/
+ defsubr (&Sbuffer_list);
+ defsubr (&Sget_buffer);
+ defsubr (&Sget_file_buffer);
+ defsubr (&Sget_buffer_create);
+ defsubr (&Sgenerate_new_buffer);
+ defsubr (&Sbuffer_name);
+/*defsubr (&Sbuffer_number);*/
+ defsubr (&Sbuffer_file_name);
+ defsubr (&Sbuffer_local_variables);
+ defsubr (&Sbuffer_modified_p);
+ defsubr (&Sset_buffer_modified_p);
+ defsubr (&Srename_buffer);
+ defsubr (&Sother_buffer);
+ defsubr (&Sbuffer_flush_undo);
+ defsubr (&Sbuffer_enable_undo);
+ defsubr (&Skill_buffer);
+ defsubr (&Serase_buffer);
+ defsubr (&Sswitch_to_buffer);
+ defsubr (&Spop_to_buffer);
+ defsubr (&Scurrent_buffer);
+ defsubr (&Sset_buffer);
+ defsubr (&Sbarf_if_buffer_read_only);
+ defsubr (&Sbury_buffer);
+ defsubr (&Slist_buffers);
+ defsubr (&Skill_all_local_variables);
+}
+
+keys_of_buffer ()
+{
+ ndefkey (Vctl_x_map, 'b', "switch-to-buffer");
+ ndefkey (Vctl_x_map, 'k', "kill-buffer");
+ ndefkey (Vctl_x_map, Ctl ('B'), "list-buffers");
+}
projects / unix-history / commitdiff