jove.4

早期freebsd实现

through
.IQ cb,
the UNIX C beautifier.  If you have a file that contains
a bunch of lines that need to be sorted you can do that from inside
\s-2JOVE\s0 too, by filtering the region through the
.IQ sort
UNIX command.
Before output from the command replaces the region \s-2JOVE\s0 stores the old
text in the kill ring, so if you are unhappy with the results you can
easily get back the old text with "C-Y".
.dc "find-file" "C-X C-F"
This visits a file into its own buffer and then selects that buffer.
If you've already visited this file in another buffer, that buffer is
selected.  If the file doesn't yet exist, \s-2JOVE\s0 will print "(New file)"
so that you know.
.dc "find-tag" "C-X T"
This finds the file that contains the specified tag.  \s-2JOVE\s0 looks up
tags by default in the "tags" file in the current directory.  You can change
the default tag name by setting the
.IQ tag-file
variable to another
name.  If you specify a numeric argument to this command, you will be
prompted for a tag file.  This is a good way to specify another tag file
without changing the default.  If the tag cannot be found the error is
reported and point stays where it is.
.dc "find-tag-at-point" "Not Bound"
This finds the file that contains the tag that point is currently on.
See
.IQ find-tag.
.dc "first-non-blank" "ESC M"
This moves point back to the indent of the current line.
.dc "forward-character" "C-F"
This moves forward over a single character.  If point is at the end of
the line it moves to the beginning of the next one.
.dc "forward-paragraph" "ESC ]"
This moves point forward to the end of the current or next paragraph.
Paragraphs are bounded by lines that begin with a Period or Tab, or by blank
lines; a change in indentation may also signal a break between paragraphs,
except that \s-2JOVE\s0 allows the first line of a paragraph to be indented
differently from the other lines.
.dc "forward-s-expression" "ESC C-F"
This moves point forward over a s-expression.  If the first significant
character after point is "(", this moves past the matching ")".  If the
character begins an identifier, this moves just past it.  This is mode
dependent, so this will move over atoms in LISP mode and C identifiers in C
mode.  \s-2JOVE\s0 also matches "{".
.dc "forward-sentence" "ESC E"
This moves point forward to the end of the current or next sentence.
\s-2JOVE\s0 considers the end of a sentence to be the characters ".", "!" or
"?" followed by a Return, or one or more spaces.
.dc "forward-word" "ESC F"
This moves point forward to the end of the current or next word.
.dc "fundamental-mode" "Not Bound"
This sets the major mode to Fundamental.  This affects what \s-2JOVE\s0
considers as characters that make up words.  For instance,
Single-quote is not part of a word in Fundamental mode, but is in Text
mode.
.dc "goto-line" "ESC G"
If a numeric argument is supplied point moves to the beginning of that
line.  If no argument is supplied, point remains where it is.  This is
so you don't lose your place unintentionally, by accidentally hitting
the "G" instead of "F".
.dc "grind-s-expr" "Not Bound"
When point is positioned on a "(", this re-indents that LISP expression.
.dc "grow-window" "C-X ^"
This makes the current window one line bigger.  This only works when
there is more than one window and provided there is room to change the
size.
.dc "paren-flash" ") } ]"
This handles the C mode curly brace indentation, the Lisp mode paren
indentation, and the Show Match mode paren/curly brace/square bracket
flashing.
.dc "handle-tab" "Tab"
This handles indenting to the "right" place in C and Lisp mode, and
just inserts itself in Text mode.
.dc "i-search-forward" "Not Bound"
Incremental search.  Like search-forward except that instead of prompting
for a string and searching for that string all at once, it accepts the string
one character at a time.  After each character you type as part of the search
string, it searches for the entire string so far.  When you like what it
found, type the Return key to finish the search.  You can take back a
character with Rubout and the search will back up to the position before
that character was typed.  C-G aborts the search.
.dc "i-search-reverse" "Not Bound"
Incremental search.  Like search-reverse except that instead of prompting
for a string and searching for that string all at once, it accepts the string
one character at a time.  After each character you type as part of the search
string, it searches for the entire string so far.  When you like what it
found, type the Return key to finish the search.  You can take back a
character with Rubout and the search will back up to the position before
that character was typed.  C-G aborts the search.
.dc "insert-file" "C-X C-I"
This inserts a specified file into the current buffer at point.  Point
is positioned at the beginning of the inserted file.
.dc "internal-tabstop" "(variable)"
The number of spaces \s-2JOVE\s0 should print when it displays a tab character.
The default value is 8.
.dc "interrupt-process" "Not Bound"
This sends the interrupt character (usually C-C) to the interactive process
in the current buffer.  This is only for versions of \s-2JOVE\s0 that have the
interactive processes feature.  This only works when you are inside a buffer
that's attached to a process.
.dc "i-shell" "Not Bound"
This starts up an interactive shell in a window.  \s-2JOVE\s0 uses "shell-1"
as the name of the buffer in which the interacting takes place.  See
the manual for information on how to use interactive processes.
.dc "i-shell-command" "Not Bound"
This is like
.IQ shell-command
except it lets you continue with your
editing while the command is running.  This is really useful for long
running commands with sporadic output.  See the manual for information
on how to use interactive processes.
.dc "kill-next-word" "ESC D"
This kills the text from point to the end of the current or next word.
.dc "kill-previous-word" "ESC Rubout"
This kills the text from point to the beginning of the current or
previous word.
.dc "kill-process" "Not Bound"
This command prompts for a buffer name or buffer number (just as
select-buffer does) and then sends the process in that buffer a
kill signal (9).
.dc "kill-region" "C-W"
This deletes the text in the region and saves it on the kill ring.
Commands that delete text but save it on the kill ring all have the
word "kill" in their names.  Type "C-Y" to yank back the most recent
kill.
.dc "kill-s-expression" "ESC C-K"
This kills the text from point to the end of the current or next
s-expression.
.dc "kill-some-buffers" "Not Bound"
This goes through all the existing buffers and asks whether or not to kill
them.  If you decide to kill a buffer, and it turns out that the buffer is
modified, \s-2JOVE\s0 will offer to save it first.  This is useful for when \s-2JOVE\s0
runs out of memory to store lines (this only happens on PDP-11's) and you
have lots of buffers that you are no longer using.
.dc "kill-to-beginning-of-sentence" "C-X Rubout"
This kills from point to the beginning of the current or previous
sentence.
.dc "kill-to-end-of-line" "C-K"
This kills from point to the end of the current line.  When point is
at the end of the line the line separator is deleted and the next line
is joined with current one.  If a numeric argument is supplied that
many lines are killed; if the argument is negative that many lines
.IQ before
point are killed; if the argument is zero the text from point
to the beginning of the line is killed.
.dc "kill-to-end-of-sentence" "ESC K"
This kills from point to the end of the current or next sentence.  If a
negative numeric argument is supplied it kills from point to the
beginning of the current or previous sentence.
.dc "left-margin" "(variable)"
This is how far lines should be indented when auto-indent mode is on,
or when the
.IQ newline-and-indent
command is run (usually by typing
LineFeed).  It is also used by fill-paragraph and auto-fill mode.
If the value is zero (the default) then the left margin is determined
from the surrounding lines.
.dc "left-margin-here" "Not Bound"
This sets the
.IQ left-margin
variable to the current position of
point.  This is an easy way to say, "Make the left margin begin here,"
without having to count the number of spaces over it actually is.
.dc "lisp-mode" "Not Bound"
This turns on Lisp mode.  Lisp mode is one of four mutually exclusive major
modes: Fundamental, Text, C, and Lisp.  In Lisp mode, the characters Tab
and ) are treated specially, similar to the way they are treated in C mode.
Also, Auto Indent mode is affected, and handled specially.
.dc "list-buffers" "C-X C-B"
This types out a list containing various information about each buffer.
Right now that list looks like this:
.DS
.ta \w'NO111'u +\w'Lines1'u +\w'Scratch111'u +\w'*1'u +\w'commands.doc111'u
\ (* means the buffer needs saving)
\ NO	Lines	Type		Name	File
\ --	-----	----		----	----
\ 1	1	File		Main	[No file]
\ 2	1	Scratch	*	Minibuf	[No file]
\ 3	519	File	*	commands.doc	commands.doc
.DE
The first column lists the buffer's number.  When \s-2JOVE\s0 prompts for a
buffer name you can either type in the full name, or you can simply
type the buffer's number.  The second column is the number of lines in
the buffer.  The third says what type of buffer.  There are four
types: "File", "Scratch", "Process", "I-Process".  "File" is simply a
buffer that holds a file; "Scratch" is for buffers that \s-2JOVE\s0 uses
internally; "Process" is one that holds the output from a UNIX
command; "I-Process" is one that has an interactive process attached to
it.  The next column contains the name of the buffer.  And the last
column is the name of the file that's attached to the buffer.  In this
case, both Minibuf and commands.doc have been changed but not yet
saved.  In fact Minibuf won't be saved since it's an internal \s-2JOVE\s0
buffer that I don't even care about.
.dc "list-processes" "Not Bound"
This makes a list somewhat like "list-buffers" does, except its
list consists of the current interactive processes.  Right now the list
looks like this:
.DS
.ta \w'shell-111111111111'u +\w'Running1111111111'u
\ Buffer	Status	Command name
\ ------	------	------- ----
\ shell-1	Running	i-shell
\ fgrep 	Done	fgrep -n Buffer *.c
.DE
The first column has the name of the buffer to which the process is
attached.  The second has the status of the process; if a process has
exited normally the status is "Done" as in fgrep; if the process
exited with an error the status is "Exit N" where N is the value of
the exit code; if the process was killed by some signal the status is
the name of the signal that was used; otherwise the process is
running.  The last column is the name of the command that is being run.
.dc "mailbox" "(variable)"
Set this to the full pathname of your mailbox.  \s-2JOVE\s0 will look here to
decide whether or not you have any unread mail.  This defaults to
/usr/spool/mail/$USER, where $USER is set to your login name.
.dc "mail-check-frequency" "(variable)"
This is how often (in seconds) \s-2JOVE\s0 should check your mailbox for
incoming mail.  See also the
.IQ mailbox
and
.IQ disable-biff
variables.
.dc "make-backup-files" "(variable)"
If this variable is set, then whenever \s-2JOVE\s0 writes out a file, it will
move the previous version of the file (if there was one) to "#filename".
This is often convenient if you save a file by accident.  The default
value of this variable is "off".
.IQ Note:
this is an optional part of
\s-2JOVE\s0, and your guru may not have it enabled, so it may not work.
.dc "make-buffer-unmodified" "ESC ~"
This makes \s-2JOVE\s0 think the selected buffer hasn't been changed even if
it has.  Use this when you accidentally change the buffer but don't
want it considered changed.  Watch the mode line to see the * disappear
when you use this command.  
.dc "make-macro-interactive" "Not Bound"
This command is meaningful only while you are defining a keyboard macro.
Ordinarily, when a command in a macro definition requires a trailing
text argument (file name, search string, etc.), the argument you
supply becomes part of the macro definition.  If you want to be able
to supply a different argument each time the macro is used, then while
you are defining it, you should give the make-macro-interactive
command just before typing the argument which will be used during the
definition process.  Note: you must bind this command to a key in
order to use it; you can't say ESC X make-macro-interactive.
.dc "mark-threshold" "(variable)"
This variable contains the number of lines point may move by before
the mark is set.  If, in a search or something, point moves by more
than this many lines, the mark is set so that you may return easily.
The default value of this variable is 22 (one screenful, on most
terminals).
.dc "marks-should-float" "(variable)"
When this variable is "off", the position of a mark is remembered as a line
number within the buffer and a character number within the line.  If you add
or delete text before the mark, it will no longer point to the text you
marked originally because that text is no longer at the same line and
character number.  When this variable is "on", the position of a mark is
adjusted to compensate for each insertion and deletion.  This makes marks
much more sensible to use, at the cost of slowing down insertion and
deletion somewhat.  The default value is "on".
.dc "match-regular-expressions" "(variable)"
When set, \s-2JOVE\s0 will match regular expressions in search patterns.
This makes special the characters ., *, [, ], ^, and $, and the two-character
sequences \e<, \e>, \e\|{, \e\|} and \e\||.
See the
.IQ ed(1)
manual page, the tutorial "Advanced Editing in 
.UX
", and the section above "Searching with Regular Expressions"
for more information.
.dc "meta-key" "(variable)"
You should set this variable to "on" if your terminal has a real Meta
key.
If your terminal has such a key, then a key sequence like ESC Y can
be entered by holding down Meta and typing Y.
.dc "mode-line" "(variable)"