Charlie Gordon 6fb16e1cc2 Simplify and improve qe_check_buffer_file

* pass `QEmacsState` to key grab functions
* clear `grab_key_opaque` when freeing windows, buffers, mode_data
* add checks on window and buffer pointers in key grab functions
* this should fix a crash bug when deleting unsynched buffers from bufed
* fix `reload_buffer` to update buffer `file_size` and `mtime` fields
* check buffer file before invoking commands that modify the buffer
* check buffer file after command that changes the current window
  or the current window's buffer

2026-06-24 00:44:18 +02:00

43 KiB

Raw Blame History

QEmacs TODO list

This is the TODO list for qemacs

Author: Charlie Gordon
Updated: 2026-06-05

Priority Tasks

Crash bugs

fix warning: int (*eb_printf_fun)(EditBuffer *b, const char *fmt, ...) = (void*)eb_printf;
fix crash bug on C-X C-B C-X C-F xxx RET
fix cursor positioning beyond end of screen

Core - Buffers - Files

Architecture

add custom memory handling functions.
qe_realloc: typed and clear reallocated area
use failsafe memory allocator and longjmp recover.
try and recover from invalid memory access
add method pointers in windows initialized from fallback chain
allow recursive main loop, and remove input callbacks
should mark be a window variable instead of a buffer variable?
should tab-width be a window variable instead of or in addition to a buffer variable?
in command specs, distinguish between interactive commands and non interactive functions
use tabulation context for text_screen_width
remove redundant bindings along fallback chains
disable messages from commands if non-interactive (eg: set-variable)
bfs: builtin file system for embedded extensions and files Jasspa bfs is way too complicated, make simpler system
rename symbols: not sure this is useful?
- QEmacsState -> QEState, DisplayState -> QEDisplay, DisplayType
- EditState -> QEWindow, TextFragment
- EditBuffer -> QEBuffer, Page -> QEPage
- EditBufferCallbackList -> QEBufferCallbackList
- EditBufferDataType -> QEBufferDataType
- LogBuffer -> QELogBuffer, LogOperation -> QELogOp
- ModeDef -> QEModeDef, ModeProbeData, QEModeProbeData
- KeyDef -> QEKeyDef, InputMethod -> QEInputMethod
- CmdFunc, CmdSig, CmdArg, CmdDefArray...
- HistoryEntry, VarDef, Equivalent
- ISearchState -> QESearchState
- CompletionDef -> QECompletionDef, CompleteState -> QECompleteState
- UNIT_SIZE -> QE_WINDOW_VIRTUAL_SIZE

Buffers

add buffer commands and point update commands, ie: functions that take an EditBuffer instead of an EditState and return an offset instead of updating point in the window.
[BUG] share mmapped pages correctly
splitting pages should fall on 32-bit boundaries (difficult)
handle broken charset sequences across page boundaries
optional 64-bit offsets on 64-bit systems, use typedef for buffer offsets
synced virtual buffers with restricted range
unsynced virtual buffers with restricted range and specific mode/charset
add active_mark and active_region flags in window/buffer states
implement narrow_start̀ and narrow_end
save-some-buffers command on C-x s: save modified file-visiting buffers, asks user about each one.
rename-buffer on C-x x r
revert-buffer: replace current buffer text with the text of the visited file on disk.

Files

show popup window with explanation and diff in qe_check_buffer_file()
fix corner cases in qe_check_buffer_file()
minimize edit list in qe_check_buffer_file() when new version is loaded
remanent annotations on files and buffers
add hook on file change
handle files starting with re: (???)
check file permissions.
fix s->offset reset to 0 upon C-x C-f newfile ENT C-x 2 C-x b ENT
insert-file: load via separate buffer with charset conversion
qe_load_file should split screen evenly for LF_SPLIT_SCREEN flag.
[Idea] save file to non existent path -> create path.
[Idea] find-file: gist:snippet
Missing commands:
- revert-file on C-x C-r
- reload-file on C-x C-r
- find-file-existing
- find-other-frame on C-x 5 f, C-x 5 C-f
- find-other-window on C-x 4 f, C-x 4 C-f
- find-other-read-only on C-x C-r
- find-file-read-only-other-frame on C-x 5 r
- find-file-read-only-other-window on C-x 4 r
- save-modified-buffers on C-x s
- find-file: should support scp syntax for remote loading
avoid error in new file
actually load file in find-file-noselect
should update symbolic links times when saving files
improve speed: C-x C-f ~/x2m RET A-r 20140101 RET 20140101 RET -> 96s
improve speed: C-x C-f ~/x2m RET C-u 1000 C-n -> 4s
use a prefix to explore file in a popup window

Miscellaneous

notes

use Cursors cursors in command dispatchers:

    struct QECursor {
        QEmacsState *qs;
        EditState *s;   /* points to the parent window */
        EditBuffer *b;
        int offset;
        // optional navigation data to accelerate buffer access:
        // getc(), peekc(), prevc()... etc.
    };

an EditState would have an embedded QECursor that contains the buffer and offset an EditBuffer could also have an embedded QECursor with no EditState

use hash tables for command and variable names
sort key binding tables?
add registrable escape sequences and key names (eg: S-f5 = ^[[15;2~)
add registrable key translations for NON ASCII input (eg: C-x 8 3 / 4 ¾)

Frames - Windows - Rendering - Displays

Frames

Add frames on text displays
Add frames on x11 displays

Windows

add configuration or other user method to control whether commands that load new contents use the current window, another window, split the current window or even use a popup to display the new buffer.
fix stacked popup windows
keep a list of windows in EditBuffer
keep the last active window when detaching a buffer, just make it invisible.
- easy if deleting the last window that shows the buffer
- if changing the buffer for a window, if the new buffer has a pending window, use that
- otherwise, create a new EditWindow with the same screen position for the new buffer.
- alternative: keep previous window if changing the buffer so swapping back restores the position and mode
- add a previous window for predict_switch_to_buffer
always save window buffer properties to buffer upon detaching
add global system to select default values for some window states
fix current position when changing buffer attached to window
fix default wrap setting mess
minibuffer and popup windows should be in a separate lists
toggle-full-screen should not put modeline on popup
toggle-full-screen should work on popups
toggle-full-screen-> unsupported if screen->dpy_full_screen is NULL
kill-buffer should delete popup and popleft window
layout: change coordinate system to 1000 based with optional sidebars
improve layout scheme for better scalability.
lingering windows

clean window deletion mess:

avoid problems with popups (kill_buffer, delete_window)
detach window from tree and keep attached to buffer if last
detach window from tree and put in delayed free tree otherwise

edit_close(s)
do_delete_window(s)
  bufed_select(s) if vertical split
  dired_select(s) if vertical split
do_popup_exit(s)
do_delete_other_windows(s) deletes other windows (!)
do_minibuffer_exit(s) also deletes completion_popup
insert_window_left()  deletes some left-most windows
  do_list_buffers()
  do_dired()

Modeline - Window frames

basic: frame-title-format and mode-line-format
modes: header-line format
modes: mode-line format
display filename relative to current directory instead of buffer name on mode-line
vertical scroll bar
menu / context-menu / toolbars / dialogs / menubar
emulation mode to use line-drawing characters for window borders
column number in status bar should account for TABs

Colors and Styles

only use styles in get_colorized_line(), not combined colors, to improve block navigation and indentation
handle MODEF_NO_TRAILING_BLANKS more generically
add line style in QEColorizeContext and combine in flush_line()
colorize git conflict markers: make this generic using line styles or colored regions <<<<<<< HEAD } defaultCase = c;

======= } else

a450183c (Analyser: fix scope stack and init_checkers' array) if (!is_last) {

add cat mode where colorizer is chosen based on extension of filename between ==> xxx <==
add command line options for color support
add script variable for color support
from emacs:
- set-background-color Set the background color of the selected frame to COLOR-NAME.
- set-border-color Set the color of the border of the selected frame to COLOR-NAME.
- set-cursor-color Set the text cursor color of the selected frame to COLOR-NAME.
- set-foreground-color Set the foreground color of the selected frame to COLOR-NAME. These commands provide a multi-column completion window
evaluate colors in expressions: rgb(r,g,b), hsl(h,s,l), hsv(h,s,v)
-color_code command line option to display available colors on terminal
different range display styles
pass indent to ColorizeFunc.
[BUG] preserve static styles in do_convert_buffer_file_coding_system()
optimize style transfer in eb_insert_buffer_convert()
add color themes
fix colors, default schemes...
add style recent changes (highlight-recent-changes)
make styles and log buffers read-only and display as binary
make style-buffer-mode and log-buffer-mode

Rendering: producing window contents

set-display-size unit issue: use extra argument or different function for pixels and characters
display: add screen dump command and format
display ^L as horizontal line and consider as linebreak character
colorize extra ^M and ^Z as preproc at end of line prior to calling the syntax highlighter (same as BOM)
colorizer bug on /comp/projects/fractal/fractint/ORGFORM/NOEL-2.FRM (triple ^M)
display bug on ~/comp/projects/fractal/fractint/ORGFORM/BAILOUT.FRM (double ^M)
default display-width of 0 is automatic, other values are shared between binary and hex modes
display: API: use style cache in DisplayState
display: API: remove screen argument in release_font, glyph_width
display: API: add create-style(name, properties)
display: use true colors on capable terminals
basic: transient-mark-mode to highlight the current region
cursor not found bug on doc/256colors.raw if truncate-lines=1
tab cursor displayed size
improve speed of text renderer / improve truncate mode
merge some good parts with CSS renderer ?.
Suppress CRC hack (not reliable).
fix crash bug on fragments longer than MAX_SCREEN_WIDTH.
wrap long lines past line numbers column
fix column computation based on display properties: (variable pitch, tabs, ^x and \uxxxx stuff -- emacs behaviour) ?
tag left-view with electric navigation
expand / collapse region
outline view: show/hide regions based on syntax
auto pretty view: insert indentation and line breaks based on syntax

Charsets - Unicode - Bidir

UTF-8 - Unicode

add default charset for new buffer creation, set that to utf8
better display of invalid UTF-8 encodings
update cp directory from more recent unicode tables
UTF-8 variants: CESU-8, Modified UTF-8, UTF-16
UTF-1 obsolete standard encoding for Unicode
limit number of combining marks to 20
use unichar, rune and/or u8 types (using char32_t at the moment)
detect bad encoding and use errno to tell caller

East-asian

handle chinese encodings
handle euc-kr
add JIS missing encoding functions
add JIS charset probing functions
autodetect sjis, euc-jp...
fix kana input method

Bidir

test Hebrew keymap support.
rewrite bidirectional algorithm and support

Other

change character detection API to handle cross page spanning
fix eb_prev_char to handle non self-synchronizing charsets
auto/mixed eol mode
set-eol-type should take a string: auto/binary/dos/unix/mac/0/1/2...
handle zero width codepoints: cp="200B" na="ZERO WIDTH SPACE" alias="ZWSP" cp="200C" na="ZERO WIDTH NON-JOINER" alias="ZWNJ" cp="200D" na="ZERO WIDTH JOINER" alias="ZWJ" cp="200E" na="LEFT-TO-RIGHT MARK" alias="LRM" cp="200F" na="RIGHT-TO-LEFT MARK" alias="RLM"
set_input_method() and set_buffer_file_coding_system() in config file.
use Unicode file hierarchy for code page files
handle or remove extra code page files: CP1006.TXT CP1253.TXT CP1254.TXT CP1255.TXT CP1258.TXT CP775.TXT CP855.TXT CP856.TXT CP857.TXT CP860.TXT CP861.TXT CP862.TXT CP863.TXT CP864.TXT CP865.TXT CP869.TXT CP874.TXT CP932.TXT JIS0201.TXT SHIFTJIS.TXT euc-jis-2004-std.txt iso-2022-jp-2004-std.txt jisx0213-2004-std.txt sjis-0213-2004-std.txt MAC-CYRILLIC.TXT MAC-GREEK.TXT MAC-ICELAND.TXT MAC-TURKISH.TXT koi8_ru.cp APL-ISO-IR-68.TXT GSM0338.TXT SGML.TXT
deal with accents in filenames (macOS uses combining accents encoded as UTF-8)
rename eb_putc as it handles the full char32_t range

Terminal

test other terminals: Terminal.app, wezTerm, Visor, Guake, or Yakuake
check out Eternal Terminal: https://mistertea.github.io/EternalTerminal/
DEC SET 1036 ESC or Alt keys
handle paste bracketting in xterm: ESC [ 2 0 0 ~ xxx ESC [ 2 0 1 ~
Use OSC 1337 file transfert protocol for file and image download
support graphics display on capable terminals

X11 display - graphics

handle X11 window manager close window event and exit cleanly
clip display by popup size
move -nw cmd line option to tty.c and make term_probe return better score
remember X11 window positions and restore layout?
faster video handling (generalize invalidate region system)
integrate tinySVG renderer based on the new libraster.
implement wheel mode in CSS display.
fix configure for missing support: x11 xv png ...
add configure --disable-graphics
dpy_open_font should never return NULL, must have a system font.

Basic movement

pass argval and pagewise to do_scroll_up_down() or split command
files: fix SPC / TAB distinct behaviors on ~/comp/project/gnachman/
basic: update default settings to indent_tabs_mode = 0, indent_width = 4, my-colors
basic: reset last command when executing macro
basic: make do_word_right, do_word_left, do_bol, do_eol... return new offset
basic: use visual movement for left, right, up, down and character based for C-b C-f C-n C-p
basic: fix offset when exiting s->hex_mode
new flavor for GoogleClosureCompiler
emacs bindings:
- M-g M-g goto-line (with prefix argument)
- M-g TAB move-to-column (with prefix argument)
Missing commands:
- what-cursor-position with universal prefix: show popup with long description
- elastic-tabs
- show-matching-delimiters
- blink-and-insert on ) } ] > or use different matching colors
- auto-fill-mode
- auto-revert-mode, global-auto-revert-mode, auto-revert-tail-mode
fix scroll up/down to move point if already at end
move by paragraph on M-[ and M-]
fill-paragraph should default indentation for the second and subsequent lines to that of the first line
scroll horizontally on M-{ and M-}: should move point if scrolling moves it past the window borders
scroll up/down with argument should scroll by screen row.
simplify C-z and A-z accordingly
drag out of window should generate autorepeat scrolling requests
prevent mouse focus to window if searching
prevent mouse focus to window if minibuf active
scroll-at-end: down keys scrolls up when at end of buffer
goto-line should not set mark if mark is already active
scrolling by window size should position cursor differently

Searching

add binding to convert the list of search matches into a multi-cursor (use C-\ ?)
C-g in incremental search should reset the last search flags
range restricted search and replace
store incremental search strings in search history list
incremental search: increase max repeat count
improve search speed finally
add low-level search accelerator function
hex-mode search strings should mix hex ut8 strings and ASCII control char names
isearch in hex should display search string in hex
transfer case in query-replace
regex replace with subexpressions
query replace across multiple files
query replace options: u -> undo last change
add non selectable query-replace-mode for key bindings, cmd description and documentation
extra: grep, grep-buffer, grep-sources, grep-tree...
query_replace functions should be restricted to the highlighted region if any
search: count-words, wc, count-sloc
search: stats command for word count and mode specific stats
isearch: M-p and M-n should select previous and next search pattern in history
searching failure should abort macros

Source control - Diff

swap buffer names in compare-files
resync from end of line without threshold if subsequent lines match
visual-diff-mode: Use color-coding to compare two buffers.
autoblame source code
diff-buffer-with-staged, diff-buffer-with-head, diff-buffer-with-master
builtin git status and commands

Input - Macros - Completion - Commands

Input

only get tty clipboard contents on yank
only set tty clipboard contents if kill buffer changed during focus time
add script variable for clipboard support
change accent input method: type accents before the character: when inserting an accent, insert a space before and do not move point when inserting a character before an accented space, replace
describe-key-briefly, local-set-key, etc should use a special input mode to read a string of keys via the minibuffer to remove the qe_key_process hack and use the same input behavior as emacs.
check abort during long operations: bufferize input and check for ^G
move ungot_key to key_context

Macros

do not abort macro on incremental search failure, just on final failure upon RET
implement a maximum macro length and abort macro learning mode if reached
allow redefining the keyboard macro embedding itself
show-macro, dump-macro to ease macro debugging and timing
fix macro slowliness in 6000 line buffer junk/dirs/x
do not use visual movement inside macros (definition and execution)
do not redisplay during macro execution, esp with prefix
check for abort/failure during repeated command execution and macros
improve dump-macro to convert macro to string
fix dump-macro to save/restore last-kbd-macro to/from session
do not store messages during repeated macro execution or limit buffer size
fix source syntax issues

   (define-macro "last-kbd-macro" "A-fA-fC-FC-FC-@C-EA-wC-AC-NC-XnC-YC-MC-Xp")
   (define-macro "last-kbd-macro" "A\-f")
   ---   - - -
   (define-macro "last-kbd-macro" "---   - - -C-M
   <Down><Up><Right><Left>")
   <><>(define-macro "last-kbd-macro" "\<>\<>")

Minibuffer - Completion

minibuf: spurious recursive edit cases.
completion: fix electric behavior
completion: add completion function to get the default value
basic: fix fuzzy completion when single unanchored match
minibuffer completion: bad return on C-x C-f . SPC qe SPC RET
minibuf: use more mode specific bindings
basic: completion in load-resource-file
completion: abbreviate lines in file completion list popup
open file with fuzzy completion
execute command with fuzzy completion
completion with fuzzy matching
handle filenames with embedded spaces
use trick for entering spaces in filename prompts without completion

Commands

support multiple modes in window using array of mode pointers
auto-complete previously used commands when no other context is available
pass has_arg and arg_val as separate arguments or combined 64-bit value
pass argval and argflags for most commands

Miscellaneous

show-date-and-time should distinguish between C-u and explicit number prefix
command aliases:
- flush-lines -> delete-matching-lines.
- keep-lines -> keep-matching-lines, delete-non-matching-lines.
- how-many (aka count-matches)
Many commands change their behavior when Transient Mark mode is in effect and the mark is active, by acting on the region instead of their usual default part of the buffer's text. Examples of such commands include M-;, flush-lines, keep-lines,
- delete-blank-lines
- query-replace, query-replace-regexp, replace-string, replace-regexp,
- ispell, ispell-word -> ispell-region.
- undo -> undo changes restricted to the current region
- eval-region-or-buffer
- isearch-forward.
- ; or # or /: comment the block
- \ add and or align \ line continuation characters (c like modes)
- fill-paragraph
- mark-paragraph extends the selection if already active

Editing - Replacing - Undo

Editing

basic: backspace delete hacking tabs
basic: enter should optionally remove whitespace at end of line
do_transpose should take argval and swap distant fragments
do_transpose has invalid behavior if left or right chunk is empty
rectangular regions, cut/paste
remote editing
delete-selection-mode to delete the highlighted region on DEL and typing text
whitespace-cleanup Command: Cleanup some blank problems in all buffer or at region. It usually applies to the whole buffer, but in transient mark mode when the mark is active, it applies to the region. It also applies to the region when it is not in transient mark mode, the mark is active and C-u was pressed just before calling whitespace-cleanup interactively.
comment-dwim Command: Call the comment command you want (Do What I Mean). If the region is active and transient-mark-mode is on, call comment-region (unless it only consists of comments, in which case it calls uncomment-region); in this case, prefix numeric argument ARG specifies how many characters to remove from each comment delimiter (so don't specify a prefix argument whose value is greater than the total length of the comment delimiters). Else, if the current line is empty, call comment-insert-comment-function if it is defined, otherwise insert a comment and indent it. Else, if a prefix ARG is specified, call comment-kill; in this case, prefix numeric argument ARG specifies on how many lines to kill the comments. Else, call comment-indent. You can configure comment-style to change the way regions are commented.
indent-for-tab-command(int ARG) Indent the current line or region, or insert a tab, as appropriate. This function either inserts a tab, or indents the current line, or performs symbol completion, depending on tab-always-indent. The function called to actually indent the line or insert a tab is given by the variable indent-line-function.

If a prefix argument is given (ARG), after this function indents the current line or inserts a tab, it also rigidly indents the entire balanced expression which starts at the beginning of the current line, to reflect the current line's indentation.

In most major modes, if point was in the current line's indentation, it is moved to the first non-whitespace character after indenting; otherwise it stays at the same position relative to the text.

If transient-mark-mode is turned on and the region is active, this function instead calls indent-region. In this case, any prefix argument is ignored.

Multi-cursor

fix multicursor kill/yank by restricting the number of kill buffers: increase the number of kill buffers to multi_cursor_cur kill uses the nth-buffer corresponding to the multi_cursor_cur variable yank-pop is disabled in this mode if no kill command occurred on a line, use the first buffer for yank else it uses the one selected by the kill command

Undo

keep modified status when undoing past a buffer save command
allow file save when undo clears file modified flag
undo some cursor movements
group undo entries to match command and or macro boundaries
saving the file kills the redo stack!
when undo resets the modified buffer flag, this prevents file save
store cursor movements in undo records
kill redo list when forking after undo
undo should handle sequence of undo records upto tagged start.
add disable-undo for tests and benchmarking
limit size of undo buffers (undo-outer-limit, default 3000000)
add undo records for styles, modes...
disable undo for archive parse and uncompress phases
compress logs and limit size
mode for undo buffers

Modes

Generic mode stuff

basic: register modes recursively along fallback chain
modes: next-mode should include buffer default_mode in list
mode inheritance
basic: stop copying ModeDef structures to implement inheritance
basic: fix mode setting mess
modes: split modes into colorizers, interaction, io, charset, eoltype
modes: major and minor modes
rethink mode specific commands -> add inheritance for all commands ?
add mode_commands and global_commands tables in ModeDef structure

C mode

Allman and other styles
Epita style
auto remove trailing spaces and add final newline
colorizing bug: static int (*qe__initcall_first)(void) qe__init_call = NULL;
align multi line comments leading * one space to the right
fix C indentation inside comments
fix C indentation inside struct, array and enum initializers
automatic indentation detection
c-indent
indent-with-tabs
stats command for slcc
missed tag: static int (*qe__initcall_first)(void) qe__init_call = NULL;
generate #include lines automatically
autocomplete keyword, function, variable, member names
TAB in whitespace should remove forward white space and indent under
TAB at end of line or in space before \ should align on \ from previous line
preserve macro \ alignment when editing (auto overwrite)
c-mode descendants:
- see if java/javascript/c++ is OK.
- as-mode: ActionStript files
- awk-mode
- cpp-mode: C++
- objc-mode: Objective C
- csharp-mode: C#
- d-mode: D
- java-mode
- javascript-mode, js-mode -> javascript files
  - support for v8 natives syntax %ddd()
  - handle missing semicolons
- json-mode
- scala-mode
- yacc-mode
- go-mode
- idl-mode
- typescript-mode
- jspp-mode: JS++
- vala-mode
- cuda-mode
- odin-mode: c-mode indentation does not work because of lack of semicolons
electric-c-mode
parenthesis matching problems in comments and markdown and other modes

Preview mode

use minor mode keymap to exit preview mode with KEY_RET
add auto skip feature at top and bottom of file to skip to the previous and/or next file in the preview mode
typing text should auto-search
typing text could ask for exiting preview-mode
prevent edit in browse mode (currently called preview-mode)

Hex mode

merge hex-mode and binary-mode
hex-mode and binary-mode should have an initial skip value to align the display on any boundary
extend hex-mode to support 16,32,64 bit words as little and big endian
optimize display for very large display-width in binary and hex modes
save display-width in binary and hex modes upon window change
display alternate cursor in non active column in hex mode.

Bufed

delete bufed buffer when exiting bufed or clear flags on bufed invocation
show current directory for shell buffers in buffer list view
bufed: use window/buffer caption for headings and sizes description

Dired

toggle long listing and column listing in dired buffers
dired view with generalized file matcher
dired: use window/buffer caption for directory and sizes description
dired: fork process and use asynchronous function to:
- list directory contents
- track directory contents file stats
- compute subdirectory sizes
keep dired current file upon: RET C-x C-k RET
use buffer specific load functions
separate buffer for each directory
snap dired left window horiz scroll
make dired left window temporary popleft window
improve dired (file commands, nicer display)
- t -> dired-touch
- | -> dired-shell-command
- - -> dired-mkdir
look into missing commands (emacs)
- dired-find-file on e .. f
- dired-do-shell-command on !
- dired-hide-subdir on $
- dired-create-directory on +
- negative-argument on -
- digit-argument on 0 .. 9
- dired-prev-dirline on <
- dired-diff on =
- dired-next-dirline on >
- dired-summary on ?
- dired-do-search on A
- dired-do-byte-compile on B
- dired-do-copy on C
- dired-do-delete on D
- dired-do-chgrp on G
- dired-do-hardlink on H
- dired-do-load on L
- dired-do-chmod on M
- dired-do-chown on O
- dired-do-print on P
- dired-do-query-replace-regexp on Q
- dired-do-rename on R rename a file or move selection to another directory
- dired-do-symlink on S
- dired-do-touch on T
- dired-unmark-all-marks on U
- dired-do-shell-command on X
- dired-do-compress on Z
- dired-up-directory on ^
- dired-find-alternate-file on a
- describe-mode on h
- dired-maybe-insert-subdir on i, +
- dired-goto-file on j
- revert-buffer on g read all currently expanded directories aGain.
- dired-do-kill-lines on k
- dired-do-redisplay on l relist single directory or marked files?
- dired-find-file-other-window on o
- quit-window on q
- dired-sort-toggle-or-edit on s toggle sorting by name and by date with prefix: set the ls command line options
- dired-toggle-marks on t
- dired-view-file on v
- dired-copy-filename-as-kill on w
- dired-do-flagged-delete on x
- dired-show-file-type on y
- dired-flag-backup-files on ~
- dired-tree-down on M-C-d
- dired-next-subdir on M-C-n
- dired-prev-subdir on M-C-p
- dired-tree-up on M-C-u
- dired-hide-all on M-$
- dired-prev-marked-file on M-{
- dired-next-marked-file on M-}
- dired-unmark-all-files on M-DEL
- dired-next-marked-file on * C-n
- dired-prev-marked-file on * C-p
- dired-unmark-all-marks on * !
- dired-mark-files-regexp on * %
- dired-mark-executables on * *
- dired-mark-directories on * /
- dired-unmark-all-files on * ?
- dired-mark-symlinks on * @
- dired-change-marks on * c
- dired-mark on * m
- dired-mark-subdir-files on * s
- dired-toggle-marks on * t
- dired-unmark on * u need commands for splitting, unsplitting, zooming, marking files globally.

Markdown modes

Markdown

for code blocks without a language tag, try and determine the language from contents
fix markdown command bindings
recognise ~~~ {.c} language tags
cooked markdown mode for documentation
use cooked markdown mode for help system
a_bb_c should not detect bb as underlined
markdown-mode: syntax modes for toml, bash (bash output), sh, text, txt

Outline - Org mode

outline styles
implement hide / show regions

Shell mode

shell integration: easily navigate to previous shell prompts with M-S-up and M-S-down. use buffer properties for this
timestamp shell commands
shell buffer remote filesystem using commands get and put (for ssh sessions)
parse the list of errors and register line/column positions so buffer can be modified using this array, implement skip to the errors in the next file with C-u C-x C-n
[BUG] ^C does not work on OpenBSD
C-x RET RET should switch to last process buffer selected and move to the end of buffer
C-x RET RET should find another shell buffer if *shell* has been killed. Should enumerate all buffers.
terminal emulation: when move inserts spaces, they should have default attributes: add test cases
terminal emulation: improve behavior based on Wikipedia page ANSI_escape_code
C-c C-c should abort make process and other shell buffers
support : as alternate escape sequence argument separator
start-shell should kill popup window
A-x kill-buffer RET -> hang
turn on interactive mode on commands that move the cursor to EOB
use auxiliary buffer to make process input asynchronous
give commands a chance to execute for macros to behave correctly
A-y at process prompt
fix very long lines in shell buffer (not finished)
fix screen size notifications, SIGWINCH signals and ioctl
fix terminal size inside shell window ?
other buffer modification functions in shell input region
tty_put_char should convert charsets
set current directory of new shell buffer to that of current window
current path in compile set to current buffer path
current path retrieved from shell prompt backwards from point
fix bof/eof shell mode
allow quoting of special keys: let do_char insert xterm/vt100 key sequence to allow typing special keys into shell process
cmdline arg to force lines and columns to test shell.
toggling interactive shell mode is not automatic enough
accented letter input in shell mode
transcode between tty charset and shell buffer charset
track unsupported escapes in shell buffer
use colorized buffer for trace buffer to flag tty input, shell output, supported and unsupported escapes.
telnet-mode: Connect to a remote computer using telnet
ssh: should use the host name and get files via scp syntax
fix tty emulation to run kilo inside the process window
shell-command-on-region on M-| mg: Pipe text from current region to external command. emacs: Execute string COMMAND in inferior shell with region as input. Normally display output (if any) in temp buffer *Shell Command Output*; Prefix arg means replace the region with it. Return the exit code of COMMAND.
start directory of make command should be the default directory of current buffer
window scrolling not emulated in tty (check ^Z in recursive eps)

Man command and mode

control where man window is opened with prefix and setting
use target window for man and similar commands
man pager -> more bindings, such as RET -> push-button (jump to map page)
cross link man pages

XML - HTML

[Idea] http request with headings
auto hierarchical view
merge xml and htmlsrc modes, add submodes for plist and other config files
xml/htmlsrc: scan for </script> beyond end of very long line
‌ -> zero width causes missing chars at end of line
html mode_probe fails on junk/Books/881256329.epub/OEBPS/Attributes.xhtml when cycling
html: preview mode does not work
html: checksum stuff does not work
html/xml: fix colorizer for multi-line tags and attributes
[BUG] xml: crash bug on johnmacfarlane.net/texmath.xhtml
html-mode: support hex entities
add syntax based wrapping mode for very long lines
distribute libqhtml as a separate project
OPTIMIZE eb_nextc et al or always duplicate box content (big speed improvement).
polish end of line offset/cursor displacement support.
handle implicit TR
add file referencing (, , etc...)
fix LI numbering with VALUE attribute (cannot use CSS). Verify counter-reset semantics.
(z-index) floats must be displayed after all other stuff.
is sometimes incorrect.
more font style synthesis in html2ppm.
add xml CDATA parsing
add auto-indent visual display for minified XML files

TeX - latex

info-mode: unix info mode
improve latex-mode
- mode for tek style sheets
- mode for texi intermediary files
- latex-mode: LaTeX documents.
- bibtex-mode
- tex-mode: TeX or LaTeX documents.
- create tags

Archive modes

archive: issue with current directory
archive: add API to register new file formats
archive: use window/buffer caption for output description
make archive mode use dired commands
compress mode file save to compressed format

Images - Video - Bitmaps

stb: add magic number detection
display images using iTerm's image transfert protocol
fix ffmpeg support
filtered scaling
zoom, pan, rotate, describe, peek-color, histogram...
multiview, wallpaper...
use screen aspect-ratio...
display info on modeline
prevent display if not invalid
improve image viewer on X11.

Syntax modes

add parametric syntax definitions (nanorc files).
modes: add language word lists: literals and builtins
text based language modes: token patterns, word lists, indentation spec
create tags in other languages: fds _STYLE_FUNCTION
improve existing language modes:
- ada-mode: create tags
- agena-mode: create tags
- ats-mode: create tags
- asm-mode: handle various assembly styles
- calc-mode: fix syntax, disable C++ comments
- cmake-mode
- cobol-mode
- coffee-mode: create tags
- css-mode
- elm-mode: create tags
- elixir-mode: create tags
- erlang-mode: create tags
- fcl-mode
- forth-mode
- fortran-mode: create tags
- groovy-mode: create tags
- haskell-mode: create tags
- icon-mode: create tags
- ini-mode: Windows .ini files.
- jai-mode: create tags
- julia-mode: create tags
- lisp-mode
- lua-mode: create tags
- makefile-mode: Gnu and other makefiles.
- nim-mode: create tags
- ocaml-mode: create tags
- pascal-mode: create tags
- perl-mode
- php-mode: improve coloring
- postscript-mode: more restrictive match
- python-mode: create tags
- r-mode: create tags
- ruby-mode: create tags
- rust-mode: create tags
- scad-mode: create tags
- scheme-mode
- scilab-mode
- sh-mode: Handle here documents
- sh-mode: Handle multiline strings
- sh-mode: handle heredoc strings cat << EOF\n ... \nEOF\n
- sh-mode: shell script files
- sql-mode
- swift-mode: create tags
- vbasic-mode: more restrictive matcher because .cls files may be latex
- virgil-mode: create tags
- vim-mode: create tags
missing languages:
- asp-mode:
- automake-mode:
- bat-mode: DOS command.com batch files.
- bazel-mode for build system (*.bzl, BUILD...)
- bennugd-mode
- bluespec-mode
- boo-mode
- cg-mode
- changelog-mode
- chdr-mode
- cmake-mode
- cmd-mode: Windows cmd.exe command files.
- conf-mode: configuration files.
- DCL-mode
- def-mode
- desktop-mode
- diff-mode
- doc-mode
- docbook-mode
- dosbatch-mode
- dot-mode
- dpatch-mode
- dtd-mode
- eiffel-mode
- exelis-mode
- fsharp-mode
- gams-mode: GAMS files.
- gap-mode
- glsl-mode
- gtkrc-mode
- haddock-mode
- imagej-mode
- j-mode
- language-mode
- libtool-mode
- literate-mode
- log-mode
- m4-mode: M4 macro processor files
- maildrop-mode: for .mailfilter
- mallard-mode
- matlab-mode
- mediawiki-mode
- modelica-mode
- mxml-mode
- nemerle-mode
- netrexx-mode
- nroff-mode
- nsis-mode
- objj-mode
- ocl-mode
- octave-mode
- ooc-mode
- opal-mode
- opencl-mode
- patch-mode
- pkgconfig-mode
- po-mode: translation files
- prolog-mode
- protobuf-mode
- puppet-mode
- rpmspec-mode
- sml-mode
- sparql-mode
- systemverilog-mode
- t2t-mode
- texinfo-mode
- vbnet-mode
- verilog-mode
- vhdl-mode: VHDL files.
- xslt-mode
- yaml-mode
- qmake, scons, ant, maven, bitC
- from drujensen/fib repo: es(escript), janet, k(K), p6, pony, ps1, pyx(cython), raku(rakudo), vb, zig detect flavors: ldc2?, bash, powershell, pypy, qb64, guile, sbcl

New modes

`csv-mode`

CSV database functions
- csv_find(string where)
- csv_select(string field_list, string where, string destination)
- csv_filter(string where)
- csv_update(string what_list, string where)
- csv_append_columns(string field_list)
- csv_insert_columns(string field_list)
- csv_delete_columns(string field_list)
- csv_delete_lines(string where)
- csv_append_lines(string field_list)
- csv_insert_lines(string field_list)
- csv_sort(string field_list)

`json-mode`

auto-wrap and indent
JSON database functions
pretty view with auto indent hierarchival view

`xml-mode`

auto-wrap and indent
XML database functions

Other modes

rst-mode: support ReStructuredText (RST)
auto-compression-mode
minor modes with key override such as preview mode
calculator / spreadsheet mode (based on SC)
calendar mode
email reader mode: mail / rmail
news reader mode
irc client mode
twitter
rss
wikipedia mode
abbreviation mode
ispell / spell checker
printing support
calc mode

Documentation - Support

improve README.md
rework documentation:

document existing features
make documentation available inside qemacs

move documentation to markdown
rewrite TODO.md file with more sections and explanations
migrate coding-rules.html to markdown
use cooked markdown mode for help
add command qemacs-hello on C-h h : load hello file for charset tests
add command qemacs-faq on C-h C-f
add command qemacs-manual on C-h m
help: data-directory, data-path ?
add command documentation in describe-function
add command documentation in describe-variable
cross link help pages
show memory stats in describe-buffer and about-qemacs
add function to add entry in TODO.md
move mailing list to github or private server

Invokation

Emulation

automatic remote config fetch based on email at qemacs.org:
- .qemacs, .bashrc...
add bindings for other editors: nano, vscode, emacs, qe, (vim ???)
load bindings corresponding to invokation command or cmdline option
fix scroll window behavior (for Mg)
tiny: remove extra features
tiny: make a really small version
set-gosmacs-bindings -> set_emulation("gosmacs")

Config - Sessions - Scripting

add command line options for terminal features: backspace
add script variable for terminal features: backspace
config: reparse .qerc upon change
session: register session store functions
session: save previous answers, ...
session: save preview mode, buffer modes and properties
session: save process buffers? non file-based buffers? dired buffers?
qe_get_variable should populate a QEValue
qe_set_variable should take a QEValue pointer
variables: add minimal version in tqe
variables: set variable values via function pointer
variables: add boolean and char types
tack library of ancillary files at the end of the binary:
- add protocol to read from library (lib:xxx)
- add html.min.css and docbook.min.css to library
- append lib: to default QE_PATH
clean up ancillary files
[Idea] dynamic project based settings, include, exclude patterns...
commands: parse_arg() should handle default argument values
commands: pass raw prefix argument P as combination of has_arg (flags) and argval (number)
eval-expression should evaluate region if highlighted?
kill eval result so it can be yanked where appropriate
integrate qscript or MicroQuickJS

Debugging

add command line options for tracing
add script variable for tracing
track line changes in next-error matches using array of locations

43 KiB Raw Blame History

QEmacs TODO list

Priority Tasks

Crash bugs

Core - Buffers - Files

Architecture

Buffers

Files

Miscellaneous

Frames - Windows - Rendering - Displays

Frames

Windows

Modeline - Window frames

Colors and Styles

Rendering: producing window contents

Charsets - Unicode - Bidir

UTF-8 - Unicode

East-asian

Bidir

Other

Terminal

X11 display - graphics

Moving - Searching - Navigation

Basic movement

Searching

Tags

Source control - Diff

Input - Macros - Completion - Commands

Input

Macros

Minibuffer - Completion

Commands

Miscellaneous

Editing - Replacing - Undo

Editing

Multi-cursor

Undo

Modes

Generic mode stuff

C mode

Preview mode

Hex mode

Bufed

Dired

Markdown modes

Markdown

Outline - Org mode

Shell mode

Man command and mode

XML - HTML

TeX - latex

Archive modes

Images - Video - Bitmaps

Syntax modes

New modes

csv-mode

json-mode

xml-mode

Other modes

Documentation - Support

Invokation

Emulation

Config - Sessions - Scripting

Debugging

43 KiB

Raw Blame History

`csv-mode`

`json-mode`

`xml-mode`