mined.hel

MINED文本文件编缉器

MINED				EDITOR				MINED


NAME
    mined - a text editor

SYNTAX
    mined [ -<options> ] [ +linenumber ] [ filename ] [ more filenames ... ]


DESCRIPTION
    An easy-to-use and natural in appearance text editor.
    Its original version was designed for Andrew S Tanenbaum's operating 
    system Minix.

    Startup features:
	- with given file name (as usual) or multiple file names
	- without given file name
	- reading from a pipe (reading text from standard input)
	- writing into a pipe (writing edited text to standard output)
    Examples:
	mined x		- edits the file x
	mined x y z	- edits files x, y, and z
	cmd | mined	- edits the output of "cmd", file name for saving 
			  can be given later
	mined x > y	- takes the contents of file x and edits it 
			  for writing into y
	mined | mail nn	- edits a text to be mailed
	cmd1 | mined | cmd2 - modifies text in between a pipe from 
				program cmd1 (output) to cmd2 (as input)
    Startup options:
	+number	Mined positions to the given line number.
	-v	Mined starts in view only mode. The text cannot be modified.
	-m	ESC ESC does not exit mined, but proceed to the next file.
		(currently default setting)
	-p	Enables provisions for proportional display fonts. (I have 
		not yet encountered a terminal emulation which handles this 
		well, see comments in mined.new.)
	-r	Ignore CR characters (so strip them at line ends).
		I.e., read MSDOS text on Unix machines.
	-R	Take CR only for newline. I.e., read MacIntosh text on 
		MSDOS or Unix machines.
	-C	Enables use of Chinese or other 16-bit character set. A byte 
		with high bit set is regarded as the first of a two-byte 
		character sequence and will not be separated in certain 
		mined operations. This works well, e.g., with the Chinese 
		xterm version, cxterm.
	-B	Backspace deletes left, Delete deletes right.
	-W	Select WordStar key function layout. This includes many 
		functions of the ^K, ^O, and ^Q menus.
	-s	Display option: Stay with cursor in top line after page down 
		or bottom line after page up instead of center line.
	-S	Display option: Use scrolling for page up/down.
	-dn	Display option: Apply delay between lines of page output to 
		achieve nice effective display build-up, starting from the 
		new cursor position proceeding to the screen edges.
		If n lies between '0' and '9', the respective number of 
		milliseconds is applied between display of two lines.
		If n='0', still an output flush is performed.
		If n='-', no delay at all is applied though still the order 
		of display output is from cursor position to edges.
		Default: '-' in the Unix version, '9' in the MSDOS version.
		To achieve paging speed at the keyboard repeat rate but still 
		have a taste of the build-up effect, a value of '5' or '6' 
		is suitable on my MSDOS system.
    These options are also looked for in the environment variable MINED.
    Some options can also be set by the existence of further variables:
	MINEDPROP	sets -p
	MINEDCHIN	sets -C
	MINEDMAC	sets -R
	MINEDWS		sets -W

  Basic functionality
    Mined is always in insert mode. Commands are single control characters, 
    double key commands starting with ESCAPE, and a collection of function 
    keys (currently installed for the VT220, SUN, and Iris terminals). 
    As a specialty, note the prefixing 'HOP KEY' which stretches the effect 
    of some cursor and screen motion commands just as you would expect; this 
    provides for more command flexibility without too much key remembering. 
    Control key layout in the current version is 'geographically' oriented 
    on the left side of the keyboard for the main motion commands, an idea 
    probably originating from the 'WordMaster' and 'WordStar' editors. 
    On SUN terminals, also the right-hand cursor block is assigned the 
    most important movement functions as follows:
                        +------+-------+------+
                        | LnDn |   ^   | PgUp |
                        +------+-------+------+
                        |  <-  |  HOP  |  ->  |
                        +------+-------+------+
                        | LnUp |   v   | PgDn |
                        +------+-------+------+

    Note that line-feeds (end-of-line character) are treated like any 
    ordinary character except that they cannot occur in search strings.
    This drawback (not to be able to search / replace lineends naturally) 
    seems to be a tradition of line-oriented unix tools and I was not 
    willing to spend that much time going into very special parts of mined.

    Every care has been taken to prevent loss of the edited text in case 
    of save errors or accidental quit commands etc. Also, if a command is 
    given to write to a file not previously read in, mined prompts for 
    confirmation.
    In the "write to standard output" mode, only one save to standard output 
    can be performed, so there is a problem in the case that more than one 
    saving actions occur; the first save (whether by a write, edit, 
    or suspend command) of the buffer is written to standard output, 
    any subsequent one is treated as usual (with empty file name).

    Before regarding the command keys and their functions, 
    note the following general remarks:

  The HOP function
    This function, triggered by any of the HOP keys, fortifies (or modifies) 
    functions as follows. To achieve the combined function, first press 
    any key that is assigned the HOP function, then any key assigned 
    the second function:

    HOP - char left			move cursor to start of current line
    HOP - char right			move cursor to end of current line
    HOP - line up			move cursor to top of screen
    HOP - line down			move cursor to bottom of screen
    HOP - scroll up			scroll half a screen up
    HOP - scroll down			scroll half a screen down
    HOP - page up			move to start of file
    HOP - page down			move to end of file
    HOP - word left			move cursor to previous ";" or "."
    HOP - word right			move cursor to next ";" or "."
    HOP - delete tail of line/lineend	delete whole line
    HOP - delete whole line		delete tail of line
    HOP - delete previous character	delete beginning of line
    HOP - set mark			go to mark
    HOP - search			search for current identifier
    HOP - search next			repeat previous (last but one) search
    HOP - copy/cut			copy or cut, but append to buffer
    HOP - save buffer			save buffer, but append to file
    HOP - paste buffer			paste "inter-window buffer", 
			which is the last saved buffer by any invocation 
			of mined on the same machine by the same user.
    HOP - edit next file		edit last file
    HOP - edit previous file		edit first file
    HOP - suspend			suspend without writing file

  Typing in 8-bit characters in absence of appropriate keyboard
    Some function keys can be used as prefix keys to change the character 
    assigned to the following key to a diacritic or special character.
    (MSDOS remark: the prefix and compose functions have been defined as 
    appropriate for the "Codepage" 850. Some of the characters shown below 
    are meaningless as letters in the "default Codepage" 437.)

    Six diacritic prefix functions are provided:
    grave: adds grave accent where applicable: 噼祢