Mercurial > hg > xemacs-beta
view src/bufslots.h @ 844:047d37eb70d7
[xemacs-hg @ 2002-05-16 13:30:23 by ben]
ui fixes for things that were bothering me
bytecode.c, editfns.c, lisp.h, lread.c: Fix save-restriction to use markers rather than pseudo-markers
(integers representing the amount of text on either side of the
region). That way, all inserts are handled correctly, not just
those inside old restriction.
Add buffer argument to save_restriction_save().
process.c: Clean up very dirty and kludgy code that outputs into a buffer --
use proper unwind protects, etc.
font-lock.c: Do save-restriction/widen around the function -- otherwise, incorrect
results will ensue when a buffer has been narrowed before a call to
e.g. `buffer-syntactic-context' -- something that happens quite often.
fileio.c: Look for a handler for make-temp-name.
window.c, winslots.h: Try to solve this annoying problem: have two frames displaying the
buffer, in different places; in one, temporarily switch away to
another buffer and then back -- and you've lost your position;
it's reset to the other one in the other frame. My current
solution involves window-level caches of buffers and points (also
a cache for window-start); when set-window-buffer is called, it
looks to see if the buffer was previously visited in the window,
and if so, uses the most recent point at that time. (It's a
marker, so it handles changes.)
#### Note: It could be argued that doing it on the frame level
would be better -- e.g. if you visit a buffer temporarily through
a grep, and then go back to that buffer, you presumably want the
grep's position rather than some previous position provided
everything was in the same frame, even though the grep was in
another window in the frame. However, doing it on the frame level
fails when you have two windows on the same frame. Perhaps we
keep both a window and a frame cache, and use the frame cache if
there are no other windows on the frame showing the buffer, else
the window's cache? This is probably something to be configurable
using a specifier. Suggestions please please please?
window.c: Clean up a bit code that deals with the annoyance of window-point
vs. point.
dialog.el: Function to ask a
multiple-choice question, automatically choosing a dialog box or
minibuffer representation as necessary. Generalized version of
yes-or-no-p, y-or-n-p.
files.el: Use get-user-response to ask "yes/no/diff" question when recovering.
"diff" means that a diff is displayed between the current file and the
autosave. (Converts/deconverts escape-quoted as necessary. No more
complaints from you, Mr. Turnbull!) One known problem: when a dialog
is used, it's modal, so you can't scroll the diff. Will fix soon.
lisp-mode.el: If we're filling a string, don't treat semicolon as a comment,
which would give very unfriendly results.
Uses `buffer-syntactic-context'.
simple.el: all changes back to the beginning. (Useful if you've saved the file
in the middle of the changes.)
simple.el: Add option kill-word-into-kill-ring, which controls whether words
deleted with kill-word, backward-kill-word, etc. are "cut" into the
kill ring, or "cleared" into nothingness. (My preference is the
latter, by far. I'd almost go so far as suggesting we make it the
default, as you can always select a word and then cut it if you want
it cut.)
menubar-items.el: Add option corresponding to kill-word-into-kill-ring.
| author | ben |
|---|---|
| date | Thu, 16 May 2002 13:30:58 +0000 |
| parents | 943eaba38521 |
| children | e22b0213b713 |
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/* Definitions of marked slots in buffers Copyright (C) 1990, 1992, 1993 Free Software Foundation, Inc. Copyright (C) 2001 Ben Wing. This file is part of XEmacs. XEmacs 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 2, or (at your option) any later version. XEmacs 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 XEmacs; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Synched up with: Mule 2.0, FSF 19.30. Split out of buffer.h. */ /* Authorship: FSF: long ago (part of buffer.h). JWZ: separated out from buffer.h, early in Lemacs. XEmacs: a few other changes. */ /* We define the Lisp_Objects in the buffer structure in a separate file because there are numerous places we want to iterate over them, such as when defining them in the structure, initializing them, or marking them. To use, define MARKED_SLOT before including this file. No need to undefine; that happens automatically. */ #ifndef BUFFER_SLOTS_FIRST_NAME #define BUFFER_SLOTS_FIRST_NAME name #endif /* The name of this buffer. */ MARKED_SLOT (name); /* The name of the file visited in this buffer, or nil. */ MARKED_SLOT (filename); /* Dir for expanding relative file names. */ MARKED_SLOT (directory); /* True iff this buffer has been backed up (if you write to the visited file and it hasn't been backed up, then a backup will be made). */ /* #### This isn't really used by the C code, so could be deleted. */ MARKED_SLOT (backed_up); /* Length of file when last read or saved. This is not in the struct buffer_text because it's not used in indirect buffers at all. */ MARKED_SLOT (saved_size); /* File name used for auto-saving this buffer. This is not in the struct buffer_text because it's not used in indirect buffers at all. */ MARKED_SLOT (auto_save_file_name); /* Non-nil if buffer read-only. */ MARKED_SLOT (read_only); /* "The mark". This is a marker which may point into this buffer or may point nowhere. */ MARKED_SLOT (mark); /* Alist of elements (SYMBOL . VALUE-IN-THIS-BUFFER) for all per-buffer variables of this buffer. Specifically, this lists those variables that have a buffer-local value in this buffer: i.e. those whose value does not shadow the default value. (Remember that for any particular variable created with `make-local-variable' or `make-variable-buffer-local', it will have a per-buffer value in some buffers and a default value in others.) Variables declared in C with DEFVAR_BUFFER_LOCAL() (i.e. those stored in the struct buffer) are not listed here. */ MARKED_SLOT (local_var_alist); /* Symbol naming major mode (eg, lisp-mode). */ MARKED_SLOT (major_mode); /* Pretty name of major mode (eg, "Lisp"). */ MARKED_SLOT (mode_name); /* Modeline element that controls format of modeline. */ MARKED_SLOT (modeline_format); /* Keys that are bound local to this buffer. */ MARKED_SLOT (keymap); /* This buffer's local abbrev table. */ MARKED_SLOT (abbrev_table); /* This buffer's syntax table. */ MARKED_SLOT (syntax_table); /* Massaged values from the syntax table, for faster lookup. */ MARKED_SLOT (mirror_syntax_table); #ifdef MULE /* This buffer's category table. */ MARKED_SLOT (category_table); #endif /* MULE */ /* This buffer's coding system. */ MARKED_SLOT (buffer_file_coding_system); /* Values of several buffer-local variables. tab-width is buffer-local so that redisplay can find it in buffers that are not current */ MARKED_SLOT (case_fold_search); MARKED_SLOT (tab_width); MARKED_SLOT (fill_column); MARKED_SLOT (left_margin); /* Function to call when insert space past fill column. */ MARKED_SLOT (auto_fill_function); /* Case table for case-conversion in this buffer. */ MARKED_SLOT (case_table); /* It contais following char-tables: */ /* Char-table maps each char into its lower-case version. */ /* Char-table mapping each char to its upper-case version. */ /* Char-table for conversion for case-folding search. */ /* Char-table of equivalences for case-folding search. */ /* #### This ought to be a specifier: */ /* Non-nil means do not display continuation lines. */ MARKED_SLOT (truncate_lines); /* #### This ought to be a specifier: */ /* #### Better yet, it ought to be junked. It really sucks. */ /* Non-nil means display ctl chars with uparrow. */ MARKED_SLOT (ctl_arrow); /* #### This ought to be a specifier: */ /* #### Better yet, it ought to be junked. It really sucks. */ /* Non-nil means do selective display; see doc string in syms_of_buffer (buffer.c) for details. */ MARKED_SLOT (selective_display); /* #### This ought to be a specifier: */ /* #### Better yet, it ought to be junked. It really sucks. */ /* Non-nil means show ... at end of line followed by invisible lines. */ MARKED_SLOT (selective_display_ellipses); /* Alist of (FUNCTION . STRING) for each minor mode enabled in buffer. */ /* Unused: MARKED_SLOT (minor_modes); */ /* t if "self-insertion" should overwrite */ MARKED_SLOT (overwrite_mode); /* non-nil means abbrev mode is on. Expand abbrevs automatically. */ MARKED_SLOT (abbrev_mode); /* No display table here. It's a specifier. */ #if 0 /* FSFmacs */ /* t means the mark and region are currently active. */ MARKED_SLOT (mark_active); #endif /* Changes in the buffer are recorded here for undo. t means don't record anything. This information belongs to the base buffer of an indirect buffer, But we can't store it in the struct buffer_text because local variables have to be right in the struct buffer. So we copy it around in set_buffer_internal. */ MARKED_SLOT (undo_list); /* FSFmacs has overlay stuff here. We have extent info elsewhere in the struct buffer. */ /* dedicated_frame in lisp */ /* Lisp of symbols naming the file format used for visited file. */ MARKED_SLOT (file_format); #ifdef REGION_CACHE_NEEDS_WORK /* True if the newline position cache and width run cache are enabled. See search.c and indent.c. */ MARKED_SLOT (cache_long_line_scans); /* If the width run cache is enabled, this table contains the character widths width_run_cache (see above) assumes. When we do a thorough redisplay, we compare this against the buffer's current display table to see whether the display table has affected the widths of any characters. If it has, we invalidate the width run cache, and re-initialize width_table. */ MARKED_SLOT (width_table); #endif /* REGION_CACHE_NEEDS_WORK */ /* A redundant copy of text.pt, in the form of a marker. Every time one is updated, so is the other. */ MARKED_SLOT (point_marker); /* FSFmacs has pt_marker, begv_marker, zv_marker here, used for indirect buffers. We don't need them because we handle these values directly instead of playing games with markers. */ /* This holds the point value before the last scroll operation. Explicitly setting point sets this to nil. */ MARKED_SLOT (point_before_scroll); /* Truename of the visited file (via qxe_realpath()), or nil. */ MARKED_SLOT (file_truename); /* Invisibility spec of this buffer. t => any non-nil `invisible' property means invisible. A list => `invisible' property means invisible if it is memq in that list. */ MARKED_SLOT (invisibility_spec); /* The string generated by formatting the modeline in this buffer. */ MARKED_SLOT (generated_modeline_string); /* A hash table that maps from a "generic extent" (an extent in `modeline-format') into a buffer-specific extent. */ MARKED_SLOT (modeline_extent_table); #ifndef BUFFER_SLOTS_LAST_NAME #define BUFFER_SLOTS_LAST_NAME modeline_extent_table #endif #undef MARKED_SLOT