NAME
le - full screen text editor
SYNOPSIS
le [options] filename
DESCRIPTION
le is a text editor which offers wide range of capabilities with a
simple interface. It has a pull down menu and a simple help system to
get started. See KEYS section below to learn about key combinations.
Among its features there are: various operations with stream and
rectangular blocks, search and replace with full regular expressions,
text formatting, undelete/uninsert, hex editing, tunable key sequences,
tunable colors, tunable syntax highlighting.
The editor currently supports only one loaded file at a time.
KEYS
Here are some starting hints:
F10 or C-n
menu
F1 help
C-x exit (cancel)
Arrows navigate
In the editor the following key description is used:
Key1-Key2
simultaneous key1 and key2 press
Key1+Key2
sequential keys press
Key1 | Key2
press Key1 OR Key2
^Key Ctrl-Key
~Key Shift-Key
^~Key Ctrl-Shift-Key | Alt-Key
Some of ^Fx, ~Fx, ^~Fx can be typed as ESC+Fx.
The rest of key combinations can be seen in help, in menu and in the
keyboard map (default one can be seen with le --dump-keymap).
There is support for block filtering through an external program, a
command output read-in, writing a block through a command. To read or
write block from/to a command, use F4+R or F4+W and file name of the
following format: ‘‘|command args’’. Filtering is achieved by F4+|
followed by command name.
STATUS LINE
On the status line you can see current line, column, the size of loaded
file, the code of character under cursor, several one letter flags,
file name, offset in bytes from the file beginning and percent position
in the file.
One letters flags are: * - modified; R - Russian keyboard (works only
on certain terminals); I - insert, O - overstrike; A - autoindent; D -
dos style line terminators (CR NL); U - undelete possible, u - uninsert
possible; B - column block mode.
TEXT PROTECTION
To prevent changes loss on crash, le regularly dumps the editing text,
if changed, to ~/.le/tmp/FILENAME.PID , where FILENAME is the file name
with slashes converted to underlines; PID is the process id of the
editor process.
When the editor gets a fatal signal, it also dumps the text, to
~/.le/tmp/DUMP-SIG-FILENAME.PID , where SIG is the signal number.
OPTIONS
-r, --read-only
Work as viewer, don’t allow changes. If your system supports
mmap(2), it will be used to get file contents to memory.
-h, --hex-mode
Start in hex mode
--mmap Use mmap(2) to load file read-only. Can be used to view very
large files or even devices. This implies -h.
--mmap-rw
Use mmap(2) to load file read-write in MAP_SHARED mode. Use with
caution -- the changes go directly to file or disk, no undo. In
this mode only replace can be used, but it allows editing of
very large files or even devices. This implies -h.
-b, --black-white
Start in black & white mode
-c, --color
Start in color mode
--dump-keymap
Dump default keymap to stdout and exit
--dump-colors
Dump default color map to stdout and exit
--version
Print the version of LE and exit
--help Print short description of options and exit
FILES
DATADIR/colors
~/.le/colors
DATADIR/colors-$TERM
~/.le/colors-$TERM
Color palette description. Those files are sequentially read and
color definitions in later files have higher precision.
~/.le/keymap-$TERM
DATADIR/keymap-$TERM
~/.le/keymap
DATADIR/keymap
Key map descriptions. Only the first existing file is read.
~/.le/term-$TERM
DATADIR/term-$TERM
Terminal specific options. Only the first existing file is read.
Use Options->Terminal menu to tune the options.
./.le.ini
~/.le/le.ini
DATADIR/le.ini
Options. Only the first existing file is read. Use menu Options
to tune these.
.le.syntax
~/.le/syntax
DATADIR/syntax
Syntax highlighting rules. Only the first existing file is
read. There is no default built-in in the editor, so if those
files are not present you won’t see any syntax highlighting.
~/.le/mainmenu
DATADIR/mainmenu
Main editor menu. It has simple text format. Only the first
existing file is read.
~/.le/history
Various histories are saved here. Do not edit by hand.
DATADIR is determined at compile time by configure script (pkgdatadir
variable). By default it has value /usr/local/share/le.
AUTHOR
The LE editor was written by Alexander V. Lukyanov <lav@yars.free.net>.
28 Sep 2000