* add `get_path_offset` to skip drive/protocol, serveur name and root dir.
* add `get_parent_offset` to get the parent of path component
* add `get_curdir` to hide OS dependencies and test `getcwd` failures
* add `get_homedir` for current or specified user
* simplify `make_user_path`, `canonicalize_absolute_buffer_path`,
`qe_set_user_option`
* no longer scan directory in `file_file_next` if pattern lacks wildcards
* patterns without wildcards can have subdirectory
* `next-error`: if file is not found in the current buffer directory, try
and locate it in subdirectories
* group urlio data into an `URLState` structure
* allocate `URLState` in `url_init()` and store it into the `QEmacsState`
* pass the `URLState` pointer to all `url_xxx` APIs
* add `tail_cb` for redisplay requests
* remove global variables
* simplify `qe_init()` call sequence
* add `QE_LIST_INIT` to initialize a linux doubly linked list
* add `qe_save_buffers` to handle synchronous/asynchronous
modified buffer examination.
* refactor asynchronous modified buffer examination into command
execution, allowing commands to suspend execution to save modified
buffers and resume once the examination completes.
* add `eol_style` in `DisplayState`
* use style of newline character for end of line
* use style of last character if any for end of buffer style
* use current style for TAB expansion
* accept OSC escape sequences for default color redefinition
* fix `css_get_color` parser for `rgb:xx/xx/xx` format
* force complete refresh upon default terminal color updates
Vastly improve window style handling:
* fix status and minibuf style handling
* add inactive window styles (window, border and mode-line)
* add commands: `set-foreground-color`, `set-background-color`
`set-default-style`
* add styles for `window`, `window-inactive`, `window-border-inactive`,
`mode-line-inactive`, `terminal`
* use custom colors for COLOR_TRANSPARENT and terminal *original pair*
* terminal background color is default background color
* change `get_style` argument types and order
* add `qe_styledef_parse` to construct full styles from text
* rename `qe_term_get_style` -> `qe_term_style_parse`
* pass 2 styles and extra flags to `print_at_bytes` to handle
alignment correctly
* 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
* add `BF_ERROR` to identify error source buffers and use it with `next-error`.
* show `HELP` and `ERROR` buffer flags in `describe-buffer`.
* add a dedicated compilation mode with the following bindings:
* `next-error` on `n`, `M-n`
* `previous-error` on `p`, `M-p`
* `scroll-up` on `SPC`
* `scroll-down` on `DEL`
* `search-forward` on `/`
and the following new commands:
* `goto-error` on `RET`, `LF`
* `kill-compilation` on `C-c C-k`
* use `compilation` mode instead of `pager` mode for
`do-compile`, and switch interactive shell buffers to
`compilation` mode when the shell exits (if `shell_buffer_read_only` is set)
* refine popup/sidepane closing in `next-error`:
* remove unnecessary popup check, as the command cannot
be invoked if a popup window is present.
* use `do_delete_window` to close side pane to avoid
screen gap bug with `edit_close`.
* add `#` at the beginning of the comand argument description
to disable command when current window is a popup or the minibuf
* update command definitions
* parse process output for shell prompts with current directory
* parse `make -w -C` output for temporary subdirectory excursions
* handle property type and flags separately
* add `QE_PROP_MARK` to prevent offset update at range boundary
* use `QE_PROP_DUP` to optimize buffer properties with single allocation
* use mask in `eb_delete_properties` to delete tags selectively
* fix `eb_find_property` range glitch
* fix offset tracking for CWD properties
* simplify default directory selection for shell commands
* fix compiler warnings on variable shadow definitions
* optimize `next_error()`: no lookback needed anymore
* display buffer properties in `describe-buffer`
* update TODO.md
* remove popups, sidepanes, helppanes.
* verify file existence before opening.
* refine error/source windows:
* find window showing the error source buffer,
split a new one if none are found.
* if current window is showing error source buffer,
find file in next window, split a new one if none are found.
* center cursor after going to error.
* show error line on window's first line.
* center cursor after going to error.
* improve color combining code for diff/patch output: preserve code
syntax coloring on red or green background.
* improve `curline_style` handling (needs more work)
* add `QETermStyle` transparent color handling in `apply_style`
* highlight trailing blanks in a single place
* transpose `qe_term_get_style()` arguments for consistency
* add `qe_term_style_string()` and `qe_styledef_string()`
* extend style string parser to accept missing foreground color
* add command to compare buffer with its file in a popup
* add [d] for diff when prompting for buffer/file synching
* add default behavior for buffer/file synching
* add CONFIG_LINUX, CONFIG_FREEBSD, CONFIG_OPENBSD, CONFIG_NETBSD
* add diff styles
* keep track of original file size and time in buffer data
* check for file changes upon window change, buffer modification and save
* prompt for reloading buffer contents and other options
- set `MAN_KEEP_FORMATTING=1` and `MANPAGER=cat` for the man
command and handle overstriking in the terminal emulation.
- this approach works on macOS, linux, FreeBSD and OpenBSD
- apply infinite-height prior to winsize initialization.
- use `LESS_LINES` environment variable.
- use `PAGER=less -F` to make less quit at the end of the man page
The behavior follows this priority order:
1. reuse an existing window already displaying the buffer,
2. if shell-command-other-window is not set, use the current
window, otherwise
3. select the largest available non-active window.
4. split a new window if no sutiable window is found.
5. fall back to the current window if splitting fails.
- `shell_buffer_read_only` controls if the shell buffer should become
read-only and use pager-mode when not interactive
- `shell_mode_auto_interactive` controls if the shell interactive mode is
switched to and from automatically based on cursor movement commands
- disable auto interactive if region is highlighted
- fix crash bug in qe_register_emulation_bindings for "emacs" emulation
* decouple interactive mode from cursor position.
* clear readonly when entering interactive mode and
restore when leaving it.
* simplify navigation logic by removing offset-based toggling.
* set pager mode on interactive shell exit.
* check for active processes in shell buffers before reusing them,
and prompt the user to kill the running process to avoid leaving
it detached and unreachable.
fixes a race condition where pty data was lost on process exit.
The pid callback now flags the exit status, while `shell_read_cb`
handles the final teardown. This prevents truncation for
high-throughput processes.
