Foundation instead of in the original English.
\1f
+File: lispref.info, Node: %-Constructs, Prev: Modeline Variables, Up: Modeline Format
+
+`%'-Constructs in the ModeLine
+------------------------------
+
+ The following table lists the recognized `%'-constructs and what
+they mean. In any construct except `%%', you can add a decimal integer
+after the `%' to specify how many characters to display.
+
+`%b'
+ The current buffer name, obtained with the `buffer-name' function.
+ *Note Buffer Names::.
+
+`%f'
+ The visited file name, obtained with the `buffer-file-name'
+ function. *Note Buffer File Name::.
+
+`%F'
+ The name of the selected frame.
+
+`%c'
+ The current column number of point.
+
+`%l'
+ The current line number of point.
+
+`%*'
+ `%' if the buffer is read only (see `buffer-read-only');
+ `*' if the buffer is modified (see `buffer-modified-p');
+ `-' otherwise. *Note Buffer Modification::.
+
+`%+'
+ `*' if the buffer is modified (see `buffer-modified-p');
+ `%' if the buffer is read only (see `buffer-read-only');
+ `-' otherwise. This differs from `%*' only for a modified
+ read-only buffer. *Note Buffer Modification::.
+
+`%&'
+ `*' if the buffer is modified, and `-' otherwise.
+
+`%s'
+ The status of the subprocess belonging to the current buffer,
+ obtained with `process-status'. *Note Process Information::.
+
+`%l'
+ The current line number.
+
+`%S'
+ The name of the selected frame; this is only meaningful under the
+ X Window System. *Note Frame Name::.
+
+`%t'
+ Whether the visited file is a text file or a binary file. (This
+ is a meaningful distinction only on certain operating systems.)
+
+`%p'
+ The percentage of the buffer text above the *top* of window, or
+ `Top', `Bottom' or `All'.
+
+`%P'
+ The percentage of the buffer text that is above the *bottom* of
+ the window (which includes the text visible in the window, as well
+ as the text above the top), plus `Top' if the top of the buffer is
+ visible on screen; or `Bottom' or `All'.
+
+`%n'
+ `Narrow' when narrowing is in effect; nothing otherwise (see
+ `narrow-to-region' in *Note Narrowing::).
+
+`%C'
+ Under XEmacs/mule, the mnemonic for `buffer-file-coding-system'.
+
+`%['
+ An indication of the depth of recursive editing levels (not
+ counting minibuffer levels): one `[' for each editing level.
+ *Note Recursive Editing::.
+
+`%]'
+ One `]' for each recursive editing level (not counting minibuffer
+ levels).
+
+`%%'
+ The character `%'--this is how to include a literal `%' in a
+ string in which `%'-constructs are allowed.
+
+`%-'
+ Dashes sufficient to fill the remainder of the modeline.
+
+ The following two `%'-constructs are still supported, but they are
+obsolete, since you can get the same results with the variables
+`mode-name' and `global-mode-string'.
+
+`%m'
+ The value of `mode-name'.
+
+`%M'
+ The value of `global-mode-string'. Currently, only `display-time'
+ modifies the value of `global-mode-string'.
+
+\1f
File: lispref.info, Node: Hooks, Prev: Modeline Format, Up: Modes
Hooks
The last thing `after-find-file' does is call all the functions in
`find-file-hooks'.
-\1f
-File: lispref.info, Node: Saving Buffers, Next: Reading from Files, Prev: Visiting Files, Up: Files
-
-Saving Buffers
-==============
-
- When you edit a file in XEmacs, you are actually working on a buffer
-that is visiting that file--that is, the contents of the file are
-copied into the buffer and the copy is what you edit. Changes to the
-buffer do not change the file until you "save" the buffer, which means
-copying the contents of the buffer into the file.
-
- - Command: save-buffer &optional backup-option
- This function saves the contents of the current buffer in its
- visited file if the buffer has been modified since it was last
- visited or saved. Otherwise it does nothing.
-
- `save-buffer' is responsible for making backup files. Normally,
- BACKUP-OPTION is `nil', and `save-buffer' makes a backup file only
- if this is the first save since visiting the file. Other values
- for BACKUP-OPTION request the making of backup files in other
- circumstances:
-
- * With an argument of 4 or 64, reflecting 1 or 3 `C-u''s, the
- `save-buffer' function marks this version of the file to be
- backed up when the buffer is next saved.
-
- * With an argument of 16 or 64, reflecting 2 or 3 `C-u''s, the
- `save-buffer' function unconditionally backs up the previous
- version of the file before saving it.
-
- - Command: save-some-buffers &optional save-silently-p exiting
- This command saves some modified file-visiting buffers. Normally
- it asks the user about each buffer. But if SAVE-SILENTLY-P is
- non-`nil', it saves all the file-visiting buffers without querying
- the user.
-
- The optional EXITING argument, if non-`nil', requests this
- function to offer also to save certain other buffers that are not
- visiting files. These are buffers that have a non-`nil' local
- value of `buffer-offer-save'. (A user who says yes to saving one
- of these is asked to specify a file name to use.) The
- `save-buffers-kill-emacs' function passes a non-`nil' value for
- this argument.
-
- - Variable: buffer-offer-save
- When this variable is non-`nil' in a buffer, XEmacs offers to save
- the buffer on exit even if the buffer is not visiting a file. The
- variable is automatically local in all buffers. Normally, Mail
- mode (used for editing outgoing mail) sets this to `t'.
-
- - Command: write-file filename
- This function writes the current buffer into file FILENAME, makes
- the buffer visit that file, and marks it not modified. Then it
- renames the buffer based on FILENAME, appending a string like `<2>'
- if necessary to make a unique buffer name. It does most of this
- work by calling `set-visited-file-name' and `save-buffer'.
-
- - Variable: write-file-hooks
- The value of this variable is a list of functions to be called
- before writing out a buffer to its visited file. If one of them
- returns non-`nil', the file is considered already written and the
- rest of the functions are not called, nor is the usual code for
- writing the file executed.
-
- If a function in `write-file-hooks' returns non-`nil', it is
- responsible for making a backup file (if that is appropriate). To
- do so, execute the following code:
-
- (or buffer-backed-up (backup-buffer))
-
- You might wish to save the file modes value returned by
- `backup-buffer' and use that to set the mode bits of the file that
- you write. This is what `save-buffer' normally does.
-
- Even though this is not a normal hook, you can use `add-hook' and
- `remove-hook' to manipulate the list. *Note Hooks::.
-
- - Variable: local-write-file-hooks
- This works just like `write-file-hooks', but it is intended to be
- made local to particular buffers. It's not a good idea to make
- `write-file-hooks' local to a buffer--use this variable instead.
-
- The variable is marked as a permanent local, so that changing the
- major mode does not alter a buffer-local value. This is
- convenient for packages that read "file" contents in special ways,
- and set up hooks to save the data in a corresponding way.
-
- - Variable: write-contents-hooks
- This works just like `write-file-hooks', but it is intended for
- hooks that pertain to the contents of the file, as opposed to
- hooks that pertain to where the file came from. Such hooks are
- usually set up by major modes, as buffer-local bindings for this
- variable. Switching to a new major mode always resets this
- variable.
-
- - Variable: after-save-hook
- This normal hook runs after a buffer has been saved in its visited
- file.
-
- - Variable: file-precious-flag
- If this variable is non-`nil', then `save-buffer' protects against
- I/O errors while saving by writing the new file to a temporary
- name instead of the name it is supposed to have, and then renaming
- it to the intended name after it is clear there are no errors.
- This procedure prevents problems such as a lack of disk space from
- resulting in an invalid file.
-
- As a side effect, backups are necessarily made by copying. *Note
- Rename or Copy::. Yet, at the same time, saving a precious file
- always breaks all hard links between the file you save and other
- file names.
-
- Some modes set this variable non-`nil' locally in particular
- buffers.
-
- - User Option: require-final-newline
- This variable determines whether files may be written out that do
- _not_ end with a newline. If the value of the variable is `t',
- then `save-buffer' silently adds a newline at the end of the file
- whenever the buffer being saved does not already end in one. If
- the value of the variable is non-`nil', but not `t', then
- `save-buffer' asks the user whether to add a newline each time the
- case arises.
-
- If the value of the variable is `nil', then `save-buffer' doesn't
- add newlines at all. `nil' is the default value, but a few major
- modes set it to `t' in particular buffers.
-
projects / chise / xemacs-chise.git / blobdiff