• Help system
• Installation
• Arguments
• Keyboard
• Menu
• Windows operations
• Files operations
• Blocks operations
• Undo/Redo
• Searching
• Searching with replace
• Debugger C/C++
• User menu
• Calculator
• System command
• Regular expressions

You may use the following help keys

Tab or ^J Down	to the next reference
^J Up	to the previous reference
^J Home	to the first reference
^J End	to the last reference
^J PgUp	to the text start
^J PgDn	to the text end
-	previous help page
F6	searching
F7	line block marking
F8	column block marking
^J +	marked block insert into clipboard

Help system provides looking through the pages man and GNU info. Utilite whatis is necessary for normal operation with the man pages. In case of its lack the simplest variant can be like this:

       #!/bin/sh
       echo "$1( )"

	y              - editor itself (binary)
	yhelp.html     - text of help system (html syntax)
	options        - global options
	keymap         - keyboard map
	colormap       - color map
        colortrans     - color translation table
	highlight      - highlight rules
	highlight_html - list of HTML tags with some info

Editor turning is done through editing files in /usr/local/lib/yui or in $HOME/.yui/

If the terminal has no a switching key to the nationale alphabet the switching can be done on ^N.

Arguments

-r - "read only" mode
-b - "binary" mode
-M - file is "formatted manual page"
-m - call man
-w - argument is URL

	./y main.c ../prog/list.h
	./y -r ../prog/list.h -M termcap.0 -b /bin/ls

	./y -w ftp://ftp.itk.ru
	./y -w http://www.itk.ru -w telnet://last.itk.ru
	./y -w man:termcap -w info:
	./y -w file:

	./y -m termcap
	./y -m "termcap(5)"

Any operation can be done by any keys combination. ^J, ^K, ^J^K keys specifically mean that the same key, pressed after them, will have different code

General commands and windows control

^J^R	refresh screen
^J^X	exit
^K^X	exit with error
Esc, ^J Esc, ^K Esc	menu
F1	context help
^J F1	previous help
^K F1	help index
^J 0 or ^J *	windows list
^E or ^J^E	next window
^W or ^J^W	previous window
^C or ^J^C	close window
^J^D	change window size
^J^A	change window place
^J^V	window zooming
F3	open exist file
^J F3	open empty window
^\ or ^J .	system command
^J \ or ^K .	system command in terminal window
^_ or ^J / or ^J F10	user menu
^J F5	man pages
^J F7	terminal window
^J F8	debugger
^J F9	WWW window

Edit window commands

F2	text saving
^J F2	text saving in new file
F4	go to line
^J F4	line marker to go
^G	matching symbol lower cursor
^T	matching symbol upper cursor
F7	line block marker
F8	column block marker
^P	block unmark
F9	block copy
F10	block move
^J +	block copy to clipboard
^J Del	block move to clipboard
^J Ins	block copy from clipboard
^Y	line removal
^J^Y	block removal
^J^B	set/unset breakpoint
^K^V	viewing mode of space and tab symbols
^K^L	reload text
^K^R	set/unset "read only" mode
^U	undo
^R	redo
F5	man pages on current word
F6	searching
^L	continue searching
^J F6	searching with replace

Menu

The windows can be switched, changed in sizes, moved. It's possible to move window out of the screen.

In dialogue window Windows list there can be observed the list of all the open windows. An active window is marked by colour. Any window can be closed by Del key, some windows can be marked by Ins key and later the switching will be possible only between them. Any window can be activated by Enter key.

Keyboard apportionment by default is available here.

Files operations

File select is done by dialogue window. With its help it's possible to view the content of any disk directory and to select necessary file. This window provides information on current directory state, files number, their total size, current file (size, creation date, etc).

Block operations

Within copy of line block it will be insert between the line with cursor and upper line. Within copy of column block it will be insert into lines from the current one and from cursor position.

Move is equaled to copy, but in the previous place the block is removed.

Within copy or move into buffer, the block is copied into clipboard, in wich this done is saved also if block in text is removed. Block can be added to clipboard and itk previous content is saved. Clipboard can be edited.

Undo/Redo

    Example:

	 Text string:          I have a computer
	 Searching string:     (I.*a) (c.*r)
	 String for replace:   \1 good \2

    As a result there will be: I have a good computer

Editor allows to run gdb in terminal window and use output information to observe programme code. After the running it's necessary to define original programme name and terminal name, on which there will be programme output. Program name is defined by file command, for example file _name_, where _name_ must be compiled with -g option.

For terminal definition it's necessary to fulfill successsful login and to run on it something like sleep 3000 to prevent any desturbance. Then give tty _terminal_name_ command, for example tty /dev/ttyp5. Now it's possible to set breakpoints and to run programme.

There is a possibility of automatical commands load in gdb. For that it's necessary to creat .gdbinit file, to describe commands in it and to set autoload flag in editor turning (through menu).

			Some gdb commands:

       r[un] ........................ run/restart of programme
       c[ontinue] ................... continue working
       b[reakpoint] function_name ... breakpoint inside function
       b file_name:line_number ...... breakpoint on line
       s[tep] ....................... programmme step
       n[ext] ....................... programme step outside of functions
       u[ntil] function_name ........ work until function end
       p[rint] expression ........... print expression meaning
       q[uit] ....................... quit

      yui: start
	    yui
      yui: compile
	    make 2>&1 | tee _r
	    #reload _r
      yui: recompile
	    make clean
	    make 2>&1 | tee _r
	    #reload _r
      syncing disks
	    sync
      show processes
	    ps -a
      >Demos Commander
	    deco

File yui.mnu searching is, first, in a current directory, otherwise in a user home directory. If there is no file it's given a corresponding warning.

Calculator

Calculator registers

X(input), Y(output), M(memory)

Mathematical operations

    + - adding
    - - substaraction
    * - multiplication
    / - division
    ^ - raising to power
    % - remainder of division

Bits operations

    | - OR
    ! - excluding OR
    & - AND
    ~ - NOT

Other operations

F10 - switcher between binary (BIN), octale (OCT), decimale (DEC) and hexadecimale (HEX) calculation systems.

PgDn - put content from X register to M register

PgUp - put content from M register to X register

^Y - clean input line

System command

                    Press any key to return to YUI ...

  .

  \c

  [...]

  *

  ^

  $

  +

  ?

  (RE)