jove.4

早期freebsd实现

).  The default value is usually
.IQ 0666
or
.IQ 0644.
.dc "files-should-end-with-newline" "(variable)"
This variable indicates that all files should always have a newline
at the end.  This is often necessary for line printers and the like.
When set, if \s-2JOVE\s0 is writing a file whose last character is not a
newline, it will add one automatically.
.dc "fill-comment" "Not Bound"
This command fills in your C comments to make them pretty and readable.
This filling is done according the variable
.IQ comment-format.
.DS L
/*
 * the default format makes comments like this.
 */
.DE
This can be changed by changing the format variable.  Other languages
may be supported by changing the format variable appropriately.  The
formatter looks backwards from dot for an open comment symbol.  If 
found, all indentation is done relative the position of the first character
of the open symbol.  If there is a matching close symbol, the entire 
comment is formatted.  If not, the region between dot and the open symbol
is reformatted.
.dc "fill-paragraph" "ESC J"
This rearranges words between lines so that all the lines in the current
paragraph extend as close to the right margin as possible, ensuring that
none of the lines will be greater than the right margin.  The default value
for
.IQ right-margin
is 78, but can be changed with the
.IQ set
and
.IQ right-margin-here
commands.  \s-2JOVE\s0 has a complicated algorithm
for determining the beginning and end of the paragraph.  In the normal case
\s-2JOVE\s0 will give all the lines the same indent as they currently have,
but if you wish to force a new indent you can supply a numeric argument to
.IQ fill-paragraph
(e.g., by typing C-U ESC J)
and \s-2JOVE\s0 will indent each line to the column
specified by the
.IQ left-margin
variable.  See also the
.IQ left-margin
variable and
.IQ left-margin-here
command.
.dc "fill-region" "Not Bound"
This is like
.IQ fill-paragraph,
except it operates on a region instead of
just a paragraph.
.dc "filter-region" "Not Bound"
This sends the text in the region to a UNIX command, and replaces the
region with the output from that command.  For example, if you are
lazy and don't like to take the time to write properly indented C
code, you can put the region around your C file and
.IQ filter-region
it
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 "foreground-color" "(variable)"
This specifies the foreground color of the screen (PC version only).  The
default is 1, which stands for white.  The attribute used for writing to
the screen is formed by (bg&7)<<4 & (fg&7).
.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-list" "ESC C-N"
This is like
.IQ forward-s-expression
except it moves over lists ONLY.  What this does is search for the next
"(" and then move to the matching ")".  This is useful for when you are
trying to find mismatched parentheses in a program.
.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 "gather-numeric-argument" "C-U"
This command is one of two ways to specify a numeric argument to a
command.  It's usually bound to C-U.  Typing C-U once means, Do the next
command 4 times.  Typing C-U twice will do the next command 16 times, and
so on.  If at any point you type a number, then that number will be used
instead of 4.  For instance, C-U 3 5 means do the next command 35 times.
.dc "goto-line" "ESC G"
If a numeric argument is supplied point moves to the beginning of that
line.  If no argument is supplied one is prompted for.
.dc "goto-window-with-buffer" "Not Bound"
This command prompts for a buffer name and then selects that buffer.  If
the buffer is currently being displayed in one of the windows, that
window is selected instead.
.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 "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 DEL 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 DEL and the search will back up to the position before
that character was typed.  C-G aborts the search.
.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 "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-character" "(variable)"
This is set to the character that interrupts JOVE (with a signal) no matter
what JOVE is doing.  It's main use is for interrupting non-interactive
processes, but it also has uses for debugging.  Unfortunately there is no
way to turn off the interrupt character.
.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 "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 DEL"
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 DEL"
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	Pid    Command
\ ------	------	---    -------
\ *shell*	Running	18415	shell
\ fgrep 	Done	18512   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 "macify" "(variable)"
When this variable is on, JOVE will use the standard Macintosh file-selector
dialog in place of the traditional JOVE minibuffer. (Mac version only)
.dc "mail-check-frequency" "(variable)"
This is how often (in seconds) \s-2JOVE\s0 should check your mailbox for
incoming mail.  If you set this to \s-2ZERO\s0 JOVE won't check for new
mail.  See also the
.IQ mailbox
and
.IQ disable-biff
variables.
.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.