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Man Pages


Manual Reference Pages  -  LE (1)

NAME

le - full screen text editor

CONTENTS

Synopsis
Description
Keys
Status Line
Text Protection
Options
Files
Author

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.
--multibyte
  Force multibyte mode on. Multibyte mode is usually enabled automatically as needed.
--no-multibyte
  Force multibyte mode off, even if it was automatically determined that it should be on.
-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>.
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--> LE (1) 28 Sep 2000

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