;;; completion.el --- dynamic word-completion code
-;; Copyright (C) 1990, 1993, 1995, 1997 Free Software Foundation, Inc.
+;; Copyright (C) 1990, 1993, 1995, 1997, 2002, 2003, 2004,
+;; 2005, 2006 Free Software Foundation, Inc.
;; Maintainer: FSF
;; Keywords: abbrev convenience
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
+;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;; Boston, MA 02110-1301, USA.
;;; Commentary:
;;
;; Introduction
;;---------------
-;;
+;;
;; After you type a few characters, pressing the "complete" key inserts
-;; the rest of the word you are likely to type.
+;; the rest of the word you are likely to type.
;;
-;; This watches all the words that you type and remembers them. When
+;; This watches all the words that you type and remembers them. When
;; typing a new word, pressing "complete" (meta-return) "completes" the
-;; word by inserting the most recently used word that begins with the
+;; word by inserting the most recently used word that begins with the
;; same characters. If you press meta-return repeatedly, it cycles
;; through all the words it knows about.
;;
;; If you like the completion then just continue typing, it is as if you
-;; entered the text by hand. If you want the inserted extra characters
+;; entered the text by hand. If you want the inserted extra characters
;; to go away, type control-w or delete. More options are described below.
;;
;; The guesses are made in the order of the most recently "used". Typing
-;; in a word and then typing a separator character (such as a space) "uses"
-;; the word. So does moving a cursor over the word. If no words are found,
+;; in a word and then typing a separator character (such as a space) "uses"
+;; the word. So does moving a cursor over the word. If no words are found,
;; it uses an extended version of the dabbrev style completion.
;;
-;; You automatically save the completions you use to a file between
-;; sessions.
+;; You automatically save the completions you use to a file between
+;; sessions.
;;
-;; Completion enables programmers to enter longer, more descriptive
+;; Completion enables programmers to enter longer, more descriptive
;; variable names while typing fewer keystrokes than they normally would.
;;
;;
;; Full documentation
;;---------------------
;;
-;; A "word" is any string containing characters with either word or symbol
+;; A "word" is any string containing characters with either word or symbol
;; syntax. [E.G. Any alphanumeric string with hyphens, underscores, etc.]
;; Unless you change the constants, you must type at least three characters
;; for the word to be recognized. Only words longer than 6 characters are
;; When you load this file, completion will be on. I suggest you use the
;; compiled version (because it is noticeably faster).
;;
-;; M-X completion-mode toggles whether or not new words are added to the
+;; M-x completion-mode toggles whether or not new words are added to the
;; database by changing the value of enable-completion.
;;
;; SAVING/LOADING COMPLETIONS
;; Completions are automatically saved from one session to another
;; (unless save-completions-flag or enable-completion is nil).
-;; Loading this file (or calling initialize-completions) causes EMACS
-;; to load a completions database for a saved completions file
-;; (default: ~/.completions). When you exit, EMACS saves a copy of the
-;; completions that you
-;; often use. When you next start, EMACS loads in the saved completion file.
-;;
-;; The number of completions saved depends loosely on
-;; *saved-completions-decay-factor*. Completions that have never been
+;; Activating this minor-mode (calling completion-initialize) loads
+;; a completions database for a saved completions file
+;; (default: ~/.completions). When you exit, Emacs saves a copy of the
+;; completions that you often use. When you next start, Emacs loads in
+;; the saved completion file.
+;;
+;; The number of completions saved depends loosely on
+;; *saved-completions-decay-factor*. Completions that have never been
;; inserted via "complete" are not saved. You are encouraged to experiment
;; with different functions (see compute-completion-min-num-uses).
;;
-;; Some completions are permanent and are always saved out. These
-;; completions have their num-uses slot set to T. Use
+;; Some completions are permanent and are always saved out. These
+;; completions have their num-uses slot set to T. Use
;; add-permanent-completion to do this
;;
;; Completions are saved only if enable-completion is T. The number of old
-;; versions kept of the saved completions file is controlled by
+;; versions kept of the saved completions file is controlled by
;; completions-file-versions-kept.
;;
;; COMPLETE KEY OPTIONS
-;; The complete function takes a numeric arguments.
-;; control-u :: leave the point at the beginning of the completion rather
+;; The complete function takes a numeric arguments.
+;; control-u :: leave the point at the beginning of the completion rather
;; than the middle.
;; a number :: rotate through the possible completions by that amount
;; `-' :: same as -1 (insert previous completion)
;; <write>
;;
;; UPDATING THE DATABASE MANUALLY
-;; m-x kill-completion
+;; m-x kill-completion
;; kills the completion at point.
;; m-x add-completion
;; m-x add-permanent-completion
-;;
+;;
;; UPDATING THE DATABASE FROM A SOURCE CODE FILE
;; m-x add-completions-from-buffer
;; Parses all the definition names from a C or LISP mode buffer and
;; adds them to the completion database.
;;
-;; m-x add-completions-from-lisp-file
+;; m-x add-completions-from-lisp-file
;; Parses all the definition names from a C or Lisp mode file and
;; adds them to the completion database.
;;
;; <write>
;;
;; STRING CASING
-;; Completion is string case independent if case-fold-search has its
+;; Completion is string case independent if case-fold-search has its
;; normal default of T. Also when the completion is inserted the case of the
-;; entry is coerced appropriately.
-;; [E.G. APP --> APPROPRIATELY app --> appropriately
+;; entry is coerced appropriately.
+;; [E.G. APP --> APPROPRIATELY app --> appropriately
;; App --> Appropriately]
;;
;; INITIALIZATION
-;; The form `(initialize-completions)' initializes the completion system by
-;; trying to load in the user's completions. After the first cal, further
-;; calls have no effect so one should be careful not to put the form in a
+;; The form `(completion-initialize)' initializes the completion system by
+;; trying to load in the user's completions. After the first call, further
+;; calls have no effect so one should be careful not to put the form in a
;; site's standard site-init file.
;;
;;---------------------------------------------------------------------------
;; complete
;; Inserts a completion at point
;;
-;; initialize-completions
-;; Loads the completions file and sets up so that exiting emacs will
+;; completion-initialize
+;; Loads the completions file and sets up so that exiting emacs will
;; save them.
;;
-;; save-completions-to-file &optional filename
+;; save-completions-to-file &optional filename
;; load-completions-from-file &optional filename
;;
;;-----------------------------------------------
;;
;; These things are for manipulating the structure
;; make-completion string num-uses
-;; completion-num-uses completion
+;; completion-num-uses completion
;; completion-string completion
;; set-completion-num-uses completion num-uses
;; set-completion-string completion string
-;;
+;;
;;
\f
;;-----------------------------------------------
;;-----------------------------------------------
;;; Change Log:
;;-----------------------------------------------
-;; Sometime in '84 Brewster implemented a somewhat buggy version for
+;; Sometime in '84 Brewster implemented a somewhat buggy version for
;; Symbolics LISPMs.
-;; Jan. '85 Jim became enamored of the idea and implemented a faster,
+;; Jan. '85 Jim became enamored of the idea and implemented a faster,
;; more robust version.
;; With input from many users at TMC, (rose, craig, and gls come to mind),
-;; the current style of interface was developed.
-;; 9/87, Jim and Brewster took terminals home. Yuck. After
-;; complaining for a while Brewster implemented a subset of the current
-;; LISPM version for GNU Emacs.
-;; 8/88 After complaining for a while (and with sufficient
+;; the current style of interface was developed.
+;; 9/87, Jim and Brewster took terminals home. Yuck. After
+;; complaining for a while Brewster implemented a subset of the current
+;; LISPM version for GNU Emacs.
+;; 8/88 After complaining for a while (and with sufficient
;; promised rewards), Jim reimplemented a version of GNU completion
;; superior to that of the LISPM version.
;;
;; - minor fix to capitalization code
;; - added *completion-auto-save-period* to variables recorded.
;; - added reenter protection to cmpl-record-statistics-filter
-;; - added backup protection to save-completions-to-file (prevents
+;; - added backup protection to save-completions-to-file (prevents
;; problems with disk full errors)
\f
;;; Code:
(defcustom enable-completion t
- "*Non-nil means enable recording and saving of completions.
+ "Non-nil means enable recording and saving of completions.
If nil, no new words are added to the database or saved to the init file."
:type 'boolean
:group 'completion)
(defcustom save-completions-flag t
- "*Non-nil means save most-used completions when exiting Emacs.
+ "Non-nil means save most-used completions when exiting Emacs.
See also `save-completions-retention-time'."
:type 'boolean
:group 'completion)
-(defcustom save-completions-file-name (convert-standard-filename "~/.completions")
- "*The filename to save completions to."
+(defcustom save-completions-file-name
+ (let ((olddef (convert-standard-filename "~/.completions")))
+ (cond
+ ((file-readable-p olddef) olddef)
+ ((file-directory-p (convert-standard-filename "~/.emacs.d/"))
+ (convert-standard-filename
+ (expand-file-name "completions" "~/.emacs.d/")))
+ (t olddef)))
+ "The filename to save completions to."
:type 'file
:group 'completion)
(defcustom save-completions-retention-time 336
- "*Discard a completion if unused for this many hours.
+ "Discard a completion if unused for this many hours.
\(1 day = 24, 1 week = 168). If this is 0, non-permanent completions
will not be saved unless these are used. Default is two weeks."
:type 'integer
:group 'completion)
(defcustom completion-on-separator-character nil
- "*Non-nil means separator characters mark previous word as used.
+ "Non-nil means separator characters mark previous word as used.
This means the word will be saved as a completion."
:type 'boolean
:group 'completion)
(defcustom completions-file-versions-kept kept-new-versions
- "*Number of versions to keep for the saved completions file."
+ "Number of versions to keep for the saved completions file."
:type 'integer
:group 'completion)
(defcustom completion-prompt-speed-threshold 4800
- "*Minimum output speed at which to display next potential completion."
+ "Minimum output speed at which to display next potential completion."
:type 'integer
:group 'completion)
(defcustom completion-cdabbrev-prompt-flag nil
- "*If non-nil, the next completion prompt does a cdabbrev search.
+ "If non-nil, the next completion prompt does a cdabbrev search.
This can be time consuming."
:type 'boolean
:group 'completion)
(defcustom completion-search-distance 15000
- "*How far to search in the buffer when looking for completions.
+ "How far to search in the buffer when looking for completions.
In number of characters. If nil, search the whole buffer."
:type 'integer
:group 'completion)
(defcustom completions-merging-modes '(lisp c)
- "*List of modes {`c' or `lisp'} for automatic completions merging.
+ "List of modes {`c' or `lisp'} for automatic completions merging.
Definitions from visited files which have these modes
are automatically added to the completion database."
:type '(set (const lisp) (const c))
;; "*The period in seconds to wait for emacs to be idle before autosaving
;;the completions. Default is a 1/2 hour.")
-(defconst completion-min-length nil ;; defined below in eval-when
+(defvar completion-min-length 6
"*The minimum length of a stored completion.
DON'T CHANGE WITHOUT RECOMPILING ! This is used by macros.")
-(defconst completion-max-length nil ;; defined below in eval-when
+(defvar completion-max-length 200
"*The maximum length of a stored completion.
DON'T CHANGE WITHOUT RECOMPILING ! This is used by macros.")
-(defconst completion-prefix-min-length nil ;; defined below in eval-when
+(defvar completion-prefix-min-length 3
"The minimum length of a completion search string.
DON'T CHANGE WITHOUT RECOMPILING ! This is used by macros.")
-(defmacro eval-when-compile-load-eval (&rest body)
- ;; eval everything before expanding
- (mapcar 'eval body)
- (cons 'progn body))
-
-(defun completion-eval-when ()
- (eval-when-compile-load-eval
- ;; These vars. are defined at both compile and load time.
- (setq completion-min-length 6)
- (setq completion-max-length 200)
- (setq completion-prefix-min-length 3)))
-
-(completion-eval-when)
-
;;---------------------------------------------------------------------------
;; Internal Variables
;;---------------------------------------------------------------------------
;; Low level tools
;;---------------------------------------------------------------------------
-;;-----------------------------------------------
-;; Misc.
-;;-----------------------------------------------
-
-(defun minibuffer-window-selected-p ()
- "True iff the current window is the minibuffer."
- (window-minibuffer-p (selected-window)))
-
-;; This used to be `(eval form)'. Eval FORM at run time now.
-(defmacro cmpl-read-time-eval (form)
- form)
-
;;-----------------------------------------------
;; String case coercion
;;-----------------------------------------------
;; of syntax in these "symbol" syntax tables ::
;;
;; syntax (?_) - "symbol" chars (e.g. alphanumerics)
-;; syntax (?w) - symbol chars to ignore at end of words (e.g. period).
+;; syntax (?w) - symbol chars to ignore at end of words (e.g. period).
;; syntax (? ) - everything else
;;
;; Thus by judicious use of scan-sexps and forward-word, we can get
-;; the word we want relatively fast and without consing.
+;; the word we want relatively fast and without consing.
;;
;; Why do we need a separate category for "symbol chars to ignore at ends" ?
-;; For example, in LISP we want starting :'s trimmed
+;; For example, in LISP we want starting :'s trimmed
;; so keyword argument specifiers also define the keyword completion. And,
;; for example, in C we want `.' appearing in a structure ref. to
-;; be kept intact in order to store the whole structure ref.; however, if
+;; be kept intact in order to store the whole structure ref.; however, if
;; it appears at the end of a symbol it should be discarded because it is
;; probably used as a period.
;; C diffs ->
;; Separator chars :: + * / : %
;; A note on the hyphen (`-'). Perhaps the hyphen should also be a separator
-;; char., however, we wanted to have completion symbols include pointer
+;; char., however, we wanted to have completion symbols include pointer
;; references. For example, "foo->bar" is a symbol as far as completion is
;; concerned.
;;
;; Table definitions
;;-----------------------------------------------
-(defun cmpl-make-standard-completion-syntax-table ()
+(defconst completion-standard-syntax-table
(let ((table (make-syntax-table))
i)
;; Default syntax is whitespace.
(modify-syntax-entry char "w" table)))
table))
-(defconst cmpl-standard-syntax-table (cmpl-make-standard-completion-syntax-table))
-
-(defun cmpl-make-lisp-completion-syntax-table ()
- (let ((table (copy-syntax-table cmpl-standard-syntax-table))
- (symbol-chars '(?! ?& ?? ?= ?^)))
- (dolist (char symbol-chars)
- (modify-syntax-entry char "_" table))
- table))
-
-(defun cmpl-make-c-completion-syntax-table ()
- (let ((table (copy-syntax-table cmpl-standard-syntax-table))
- (separator-chars '(?+ ?* ?/ ?: ?%)))
- (dolist (char separator-chars)
- (modify-syntax-entry char " " table))
- table))
-
-(defun cmpl-make-fortran-completion-syntax-table ()
- (let ((table (copy-syntax-table cmpl-standard-syntax-table))
- (separator-chars '(?+ ?- ?* ?/ ?:)))
- (dolist (char separator-chars)
- (modify-syntax-entry char " " table))
- table))
-
-(defconst cmpl-lisp-syntax-table (cmpl-make-lisp-completion-syntax-table))
-(defconst cmpl-c-syntax-table (cmpl-make-c-completion-syntax-table))
-(defconst cmpl-fortran-syntax-table (cmpl-make-fortran-completion-syntax-table))
-
-(defvar cmpl-syntax-table cmpl-standard-syntax-table
+(defvar completion-syntax-table completion-standard-syntax-table
"This variable holds the current completion syntax table.")
-(make-variable-buffer-local 'cmpl-syntax-table)
+(make-variable-buffer-local 'completion-syntax-table)
;;-----------------------------------------------
;; Symbol functions
"Holds first character of symbol, after any completion symbol function.")
(defvar cmpl-symbol-end nil
"Holds last character of symbol, after any completion symbol function.")
-;; These are temp. vars. we use to avoid using let.
-;; Why ? Small speed improvement.
-(defvar cmpl-saved-syntax nil)
-(defvar cmpl-saved-point nil)
(defun symbol-under-point ()
- "Returns the symbol that the point is currently on.
+ "Return the symbol that the point is currently on.
But only if it is longer than `completion-min-length'."
- (setq cmpl-saved-syntax (syntax-table))
- (unwind-protect
- (progn
- (set-syntax-table cmpl-syntax-table)
- (cond
- ;; Cursor is on following-char and after preceding-char
- ((memq (char-syntax (following-char)) '(?w ?_))
- (setq cmpl-saved-point (point)
- cmpl-symbol-start (scan-sexps (1+ cmpl-saved-point) -1)
- cmpl-symbol-end (scan-sexps cmpl-saved-point 1))
- ;; Remove chars to ignore at the start.
- (cond ((= (char-syntax (char-after cmpl-symbol-start)) ?w)
- (goto-char cmpl-symbol-start)
- (forward-word 1)
- (setq cmpl-symbol-start (point))
- (goto-char cmpl-saved-point)))
- ;; Remove chars to ignore at the end.
- (cond ((= (char-syntax (char-after (1- cmpl-symbol-end))) ?w)
- (goto-char cmpl-symbol-end)
- (forward-word -1)
- (setq cmpl-symbol-end (point))
- (goto-char cmpl-saved-point)))
- ;; Return completion if the length is reasonable.
- (if (and (<= (cmpl-read-time-eval completion-min-length)
- (- cmpl-symbol-end cmpl-symbol-start))
- (<= (- cmpl-symbol-end cmpl-symbol-start)
- (cmpl-read-time-eval completion-max-length)))
- (buffer-substring cmpl-symbol-start cmpl-symbol-end)))))
- (set-syntax-table cmpl-saved-syntax)))
+ (with-syntax-table completion-syntax-table
+ (when (memq (char-syntax (following-char)) '(?w ?_))
+ ;; Cursor is on following-char and after preceding-char
+ (let ((saved-point (point)))
+ (setq cmpl-symbol-start (scan-sexps (1+ saved-point) -1)
+ cmpl-symbol-end (scan-sexps saved-point 1))
+ ;; Remove chars to ignore at the start.
+ (cond ((= (char-syntax (char-after cmpl-symbol-start)) ?w)
+ (goto-char cmpl-symbol-start)
+ (forward-word 1)
+ (setq cmpl-symbol-start (point))
+ (goto-char saved-point)))
+ ;; Remove chars to ignore at the end.
+ (cond ((= (char-syntax (char-after (1- cmpl-symbol-end))) ?w)
+ (goto-char cmpl-symbol-end)
+ (forward-word -1)
+ (setq cmpl-symbol-end (point))
+ (goto-char saved-point)))
+ ;; Return completion if the length is reasonable.
+ (if (and (<= completion-min-length
+ (- cmpl-symbol-end cmpl-symbol-start))
+ (<= (- cmpl-symbol-end cmpl-symbol-start)
+ completion-max-length))
+ (buffer-substring cmpl-symbol-start cmpl-symbol-end))))))
;; tests for symbol-under-point
;; `^' indicates cursor pos. where value is returned
;;
(defun symbol-before-point ()
- "Returns a string of the symbol immediately before point.
-Returns nil if there isn't one longer than `completion-min-length'."
+ "Return a string of the symbol immediately before point.
+Returns nil if there isn't one longer than `completion-min-length'."
;; This is called when a word separator is typed so it must be FAST !
- (setq cmpl-saved-syntax (syntax-table))
- (unwind-protect
- (progn
- (set-syntax-table cmpl-syntax-table)
- ;; Cursor is on following-char and after preceding-char
- (cond ((= (setq cmpl-preceding-syntax (char-syntax (preceding-char))) ?_)
- ;; Number of chars to ignore at end.
- (setq cmpl-symbol-end (point)
- cmpl-symbol-start (scan-sexps cmpl-symbol-end -1))
- ;; Remove chars to ignore at the start.
- (cond ((= (char-syntax (char-after cmpl-symbol-start)) ?w)
- (goto-char cmpl-symbol-start)
- (forward-word 1)
- (setq cmpl-symbol-start (point))
- (goto-char cmpl-symbol-end)))
- ;; Return value if long enough.
- (if (>= cmpl-symbol-end
- (+ cmpl-symbol-start
- (cmpl-read-time-eval completion-min-length)))
- (buffer-substring cmpl-symbol-start cmpl-symbol-end)))
- ((= cmpl-preceding-syntax ?w)
- ;; chars to ignore at end
- (setq cmpl-saved-point (point)
- cmpl-symbol-start (scan-sexps cmpl-saved-point -1))
- ;; take off chars. from end
- (forward-word -1)
- (setq cmpl-symbol-end (point))
- ;; remove chars to ignore at the start
- (cond ((= (char-syntax (char-after cmpl-symbol-start)) ?w)
- (goto-char cmpl-symbol-start)
- (forward-word 1)
- (setq cmpl-symbol-start (point))))
- ;; Restore state.
- (goto-char cmpl-saved-point)
- ;; Return completion if the length is reasonable
- (if (and (<= (cmpl-read-time-eval completion-min-length)
- (- cmpl-symbol-end cmpl-symbol-start))
- (<= (- cmpl-symbol-end cmpl-symbol-start)
- (cmpl-read-time-eval completion-max-length)))
- (buffer-substring cmpl-symbol-start cmpl-symbol-end)))))
- (set-syntax-table cmpl-saved-syntax)))
+ (with-syntax-table completion-syntax-table
+ ;; Cursor is on following-char and after preceding-char
+ (cond ((= (setq cmpl-preceding-syntax (char-syntax (preceding-char))) ?_)
+ ;; Number of chars to ignore at end.
+ (setq cmpl-symbol-end (point)
+ cmpl-symbol-start (scan-sexps cmpl-symbol-end -1))
+ ;; Remove chars to ignore at the start.
+ (cond ((= (char-syntax (char-after cmpl-symbol-start)) ?w)
+ (goto-char cmpl-symbol-start)
+ (forward-word 1)
+ (setq cmpl-symbol-start (point))
+ (goto-char cmpl-symbol-end)))
+ ;; Return value if long enough.
+ (if (>= cmpl-symbol-end
+ (+ cmpl-symbol-start completion-min-length))
+ (buffer-substring cmpl-symbol-start cmpl-symbol-end)))
+ ((= cmpl-preceding-syntax ?w)
+ ;; chars to ignore at end
+ (let ((saved-point (point)))
+ (setq cmpl-symbol-start (scan-sexps saved-point -1))
+ ;; take off chars. from end
+ (forward-word -1)
+ (setq cmpl-symbol-end (point))
+ ;; remove chars to ignore at the start
+ (cond ((= (char-syntax (char-after cmpl-symbol-start)) ?w)
+ (goto-char cmpl-symbol-start)
+ (forward-word 1)
+ (setq cmpl-symbol-start (point))))
+ ;; Restore state.
+ (goto-char saved-point)
+ ;; Return completion if the length is reasonable
+ (if (and (<= completion-min-length
+ (- cmpl-symbol-end cmpl-symbol-start))
+ (<= (- cmpl-symbol-end cmpl-symbol-start)
+ completion-max-length))
+ (buffer-substring cmpl-symbol-start cmpl-symbol-end)))))))
;; tests for symbol-before-point
;; `^' indicates cursor pos. where value is returned
;; copying all the code.
;; However, it is only used by the completion string prompter.
;; If it comes into common use, it could be rewritten.
- (cond ((memq (progn
- (setq cmpl-saved-syntax (syntax-table))
- (unwind-protect
- (progn
- (set-syntax-table cmpl-syntax-table)
- (char-syntax (following-char)))
- (set-syntax-table cmpl-saved-syntax)))
- '(?w ?_))
- (symbol-under-point))
- (t
- (symbol-before-point))))
+ (if (memq (with-syntax-table completion-syntax-table
+ (char-syntax (following-char)))
+ '(?w ?_))
+ (symbol-under-point)
+ (symbol-before-point)))
(defun symbol-before-point-for-complete ()
;; or nil if there isn't one. Like symbol-before-point but doesn't trim the
;; end chars."
;; Cursor is on following-char and after preceding-char
- (setq cmpl-saved-syntax (syntax-table))
- (unwind-protect
- (progn
- (set-syntax-table cmpl-syntax-table)
- (cond ((memq (setq cmpl-preceding-syntax (char-syntax (preceding-char)))
- '(?_ ?w))
- (setq cmpl-symbol-end (point)
- cmpl-symbol-start (scan-sexps cmpl-symbol-end -1))
- ;; Remove chars to ignore at the start.
- (cond ((= (char-syntax (char-after cmpl-symbol-start)) ?w)
- (goto-char cmpl-symbol-start)
- (forward-word 1)
- (setq cmpl-symbol-start (point))
- (goto-char cmpl-symbol-end)))
- ;; Return completion if the length is reasonable.
- (if (and (<= (cmpl-read-time-eval
- completion-prefix-min-length)
- (- cmpl-symbol-end cmpl-symbol-start))
- (<= (- cmpl-symbol-end cmpl-symbol-start)
- (cmpl-read-time-eval completion-max-length)))
- (buffer-substring cmpl-symbol-start cmpl-symbol-end)))))
- ;; Restore syntax table.
- (set-syntax-table cmpl-saved-syntax)))
+ (with-syntax-table completion-syntax-table
+ (cond ((memq (setq cmpl-preceding-syntax (char-syntax (preceding-char)))
+ '(?_ ?w))
+ (setq cmpl-symbol-end (point)
+ cmpl-symbol-start (scan-sexps cmpl-symbol-end -1))
+ ;; Remove chars to ignore at the start.
+ (cond ((= (char-syntax (char-after cmpl-symbol-start)) ?w)
+ (goto-char cmpl-symbol-start)
+ (forward-word 1)
+ (setq cmpl-symbol-start (point))
+ (goto-char cmpl-symbol-end)))
+ ;; Return completion if the length is reasonable.
+ (if (and (<= completion-prefix-min-length
+ (- cmpl-symbol-end cmpl-symbol-start))
+ (<= (- cmpl-symbol-end cmpl-symbol-start)
+ completion-max-length))
+ (buffer-substring cmpl-symbol-start cmpl-symbol-end))))))
;; tests for symbol-before-point-for-complete
;; `^' indicates cursor pos. where value is returned
;; "Only executes body if we are recording statistics."
;; (list 'cond
;; (list* '*record-cmpl-statistics-p* body)
-;; ))
+;; ))
;;-----------------------------------------------
;; Completion Sources
;; Completion Method #2: dabbrev-expand style
;;---------------------------------------------------------------------------
;;
-;; This method is used if there are no useful stored completions. It is
+;; This method is used if there are no useful stored completions. It is
;; based on dabbrev-expand with these differences :
;; 1) Faster (we don't use regexps)
;; 2) case coercion handled correctly
(defun reset-cdabbrev (abbrev-string &optional initial-completions-tried)
- "Resets the cdabbrev search to search for abbrev-string.
+ "Reset the cdabbrev search to search for ABBREV-STRING.
INITIAL-COMPLETIONS-TRIED is a list of downcased strings to ignore
during the search."
(setq cdabbrev-abbrev-string abbrev-string
(reset-cdabbrev-window t))
(defun set-cdabbrev-buffer ()
- ;; cdabbrev-current-window must not be NIL
+ ;; cdabbrev-current-window must not be nil
(set-buffer (if (eq cdabbrev-current-window t)
(other-buffer)
(window-buffer cdabbrev-current-window))))
(defun reset-cdabbrev-window (&optional initializep)
- "Resets the cdabbrev search to search for abbrev-string."
+ "Reset the cdabbrev search to search for abbrev-string."
;; Set the window
(cond (initializep
(setq cdabbrev-current-window (selected-window)))
;; note that case-fold-search affects the behavior of this function
;; Bug: won't pick up an expansion that starts at the top of buffer
(if cdabbrev-current-window
- (let (saved-point
+ (let (saved-point
saved-syntax
(expansion nil)
downcase-expansion tried-list syntax saved-point-2)
(setq saved-point (point)
saved-syntax (syntax-table))
;; Restore completion state
- (set-syntax-table cmpl-syntax-table)
+ (set-syntax-table completion-syntax-table)
(goto-char cdabbrev-current-point)
;; Loop looking for completions
(while
;; A completion entry is a LIST of string, prefix-symbol num-uses, and
;; last-use-time (the time the completion was last used)
-;; last-use-time is T if the string should be kept permanently
+;; last-use-time is t if the string should be kept permanently
;; num-uses is incremented every time the completion is used.
-;; We chose lists because (car foo) is faster than (aref foo 0) and the
+;; We chose lists because (car foo) is faster than (aref foo 0) and the
;; creation time is about the same.
;; READER MACROS
(list 'car completion-entry))
(defmacro completion-num-uses (completion-entry)
- ;; "The number of times it has used. Used to decide whether to save
+ ;; "The number of times it has used. Used to decide whether to save
;; it."
(list 'car (list 'cdr completion-entry)))
(defmacro completion-last-use-time (completion-entry)
;; "The time it was last used. In hours since origin. Used to decide
- ;; whether to save it. T if one should always save it."
+ ;; whether to save it. t if one should always save it."
(list 'nth 2 completion-entry))
(defmacro completion-source (completion-entry)
;; CONSTRUCTOR
(defun make-completion (string)
- "Returns a list of a completion entry."
- (list (list string 0 nil current-completion-source)))
+ "Return a completion entry."
+ (list string 0 nil current-completion-source))
;; Obsolete
;;(defmacro cmpl-prefix-entry-symbol (completion-entry)
;; READER Macros
-(defmacro cmpl-prefix-entry-head (prefix-entry)
- (list 'car prefix-entry))
+(defalias 'cmpl-prefix-entry-head 'car)
-(defmacro cmpl-prefix-entry-tail (prefix-entry)
- (list 'cdr prefix-entry))
+(defalias 'cmpl-prefix-entry-tail 'cdr)
;; WRITER Macros
;; Constructor
(defun make-cmpl-prefix-entry (completion-entry-list)
- "Makes a new prefix entry containing only completion-entry."
+ "Make a new prefix entry containing only completion-entry."
(cons completion-entry-list completion-entry-list))
;;-----------------------------------------------
;; These are the internal functions used to update the datebase
;;
;;
-(defvar completion-to-accept nil)
- ;;"Set to a string that is pending its acceptance."
+(defvar completion-to-accept nil
+ "Set to a string that is pending its acceptance.")
;; this checked by the top level reading functions
-(defvar cmpl-db-downcase-string nil)
- ;; "Setup by find-exact-completion, etc. The given string, downcased."
-(defvar cmpl-db-symbol nil)
- ;; "The interned symbol corresponding to cmpl-db-downcase-string.
- ;; Set up by cmpl-db-symbol."
-(defvar cmpl-db-prefix-symbol nil)
- ;; "The interned prefix symbol corresponding to cmpl-db-downcase-string."
+(defvar cmpl-db-downcase-string nil
+ "Setup by `find-exact-completion', etc. The given string, downcased.")
+(defvar cmpl-db-symbol nil
+ "The interned symbol corresponding to `cmpl-db-downcase-string'.
+Set up by `cmpl-db-symbol'.")
+(defvar cmpl-db-prefix-symbol nil
+ "The interned prefix symbol corresponding to `cmpl-db-downcase-string'.")
(defvar cmpl-db-entry nil)
(defvar cmpl-db-debug-p nil
- "Set to T if you want to debug the database.")
+ "Set to t if you want to debug the database.")
;; READS
(defun find-exact-completion (string)
(defun locate-completion-db-error ()
;; recursive error: really scrod
- (error "Completion database corrupted. Try M-x clear-all-completions. Send bug report."))
+ (error "Completion database corrupted. Try M-x clear-all-completions. Send bug report"))
;; WRITES
(defun add-completion-to-tail-if-new (string)
(or (find-exact-completion string)
;; not there
(let (;; create an entry
- (entry (make-completion string))
+ (entry (list (make-completion string)))
;; setup the prefix
(prefix-entry (find-cmpl-prefix-entry
(substring cmpl-db-downcase-string 0
- (cmpl-read-time-eval
- completion-prefix-min-length)))))
+ completion-prefix-min-length))))
;; The next two forms should happen as a unit (atomically) but
;; no fatal errors should result if that is not the case.
(cond (prefix-entry
;; found
(let* ((prefix-entry (find-cmpl-prefix-entry
(substring cmpl-db-downcase-string 0
- (cmpl-read-time-eval
- completion-prefix-min-length))))
+ completion-prefix-min-length)))
(splice-ptr (locate-completion-entry cmpl-db-entry prefix-entry))
(cmpl-ptr (cdr splice-ptr)))
;; update entry
cmpl-db-entry)
;; not there
(let (;; create an entry
- (entry (make-completion completion-string))
+ (entry (list (make-completion completion-string)))
;; setup the prefix
(prefix-entry (find-cmpl-prefix-entry
(substring cmpl-db-downcase-string 0
- (cmpl-read-time-eval
- completion-prefix-min-length)))))
+ completion-prefix-min-length))))
(cond (prefix-entry
;; Splice in at head
(setcdr entry (cmpl-prefix-entry-head prefix-entry))
(note-added-completion))
;; Add it to the symbol
(set cmpl-db-symbol (car entry)))))
-
+
(defun delete-completion (completion-string)
"Delete the completion from the database.
String must be longer than `completion-prefix-min-length'."
(if completion-to-accept (accept-completion))
(if (setq cmpl-db-entry (find-exact-completion completion-string))
;; found
- (let* ((prefix-entry (find-cmpl-prefix-entry
+ (let* ((prefix-entry (find-cmpl-prefix-entry
(substring cmpl-db-downcase-string 0
- (cmpl-read-time-eval
- completion-prefix-min-length))))
+ completion-prefix-min-length)))
(splice-ptr (locate-completion-entry cmpl-db-entry prefix-entry)))
;; delete symbol reference
(set cmpl-db-symbol nil)
;;
;; - Deleting -
;; (add-completion-to-head "banner") --> ("banner" 0 nil 0)
-;; (delete-completion "banner")
+;; (delete-completion "banner")
;; (find-exact-completion "banner") --> nil
;; (car (find-cmpl-prefix-entry "ban")) --> (("banana" ...) ("banish" ...))
;; (cdr (find-cmpl-prefix-entry "ban")) --> (("banish" ...))
-;; (add-completion-to-head "banner") --> ("banner" 0 nil 0)
-;; (delete-completion "banana")
+;; (add-completion-to-head "banner") --> ("banner" 0 nil 0)
+;; (delete-completion "banana")
;; (car (find-cmpl-prefix-entry "ban")) --> (("banner" ...) ("banish" ...))
;; (cdr (find-cmpl-prefix-entry "ban")) --> (("banish" ...))
-;; (delete-completion "banner")
-;; (delete-completion "banish")
+;; (delete-completion "banner")
+;; (delete-completion "banish")
;; (find-cmpl-prefix-entry "ban") --> nil
;; (delete-completion "banner") --> error
;;
;;---------------------------------------------------------------------------
;; Database Update :: Interface level routines
;;---------------------------------------------------------------------------
-;;
+;;
;; These lie on top of the database ref. functions but below the standard
;; user interface level
(let* ((default (symbol-under-or-before-point))
(new-prompt
(if default
- (format "%s: (default: %s) " prompt default)
+ (format "%s (default %s): " prompt default)
(format "%s: " prompt)))
(read (completing-read new-prompt cmpl-obarray)))
(if (zerop (length read)) (setq read (or default "")))
(defun add-completion (string &optional num-uses last-use-time)
"Add STRING to completion list, or move it to head of list.
-The completion is altered appropriately if num-uses and/or last-use-time is
+The completion is altered appropriately if num-uses and/or last-use-time is
specified."
(interactive (interactive-completion-string-reader "Completion to add"))
(check-completion-length string)
cmpl-source-interactive
current-completion-source))
(entry (add-completion-to-head string)))
-
+
(if num-uses (set-completion-num-uses entry num-uses))
(if last-use-time
(set-completion-last-use-time entry last-use-time))))
(defun accept-completion ()
"Accepts the pending completion in `completion-to-accept'.
-This bumps num-uses. Called by `add-completion-to-head' and
+This bumps num-uses. Called by `add-completion-to-head' and
`completion-search-reset'."
(let ((string completion-to-accept)
;; if this is added afresh here, then it must be a cdabbrev
(let ((string (and enable-completion (symbol-under-point)))
(current-completion-source cmpl-source-cursor-moves))
(if string (add-completion-to-head string))))
-
+
(defun use-completion-before-point ()
"Add the completion symbol before point into the completion buffer."
(let ((string (and enable-completion (symbol-before-point)))
;; Tests --
;; - Add and Find -
-;; (add-completion "banana" 5 10)
+;; (add-completion "banana" 5 10)
;; (find-exact-completion "banana") --> ("banana" 5 10 0)
-;; (add-completion "banana" 6)
+;; (add-completion "banana" 6)
;; (find-exact-completion "banana") --> ("banana" 6 10 0)
;; (add-completion "banish")
;; (car (find-cmpl-prefix-entry "ban")) --> (("banish" ...) ("banana" ...))
;;
;; - Accepting -
;; (setq completion-to-accept "banana")
-;; (accept-completion)
+;; (accept-completion)
;; (find-exact-completion "banana") --> ("banana" 7 10)
;; (car (find-cmpl-prefix-entry "ban")) --> (("banana" ...) ("banish" ...))
;; (setq completion-to-accept "banish")
-;; (add-completion "banner")
+;; (add-completion "banner")
;; (car (find-cmpl-prefix-entry "ban"))
;; --> (("banner" ...) ("banish" 1 ...) ("banana" 7 ...))
;;
;; - Deleting -
-;; (kill-completion "banish")
+;; (kill-completion "banish")
;; (car (find-cmpl-prefix-entry "ban")) --> (("banner" ...) ("banana" ...))
\f
(defvar cmpl-test-string "")
;; "The current string used by completion-search-next."
(defvar cmpl-test-regexp "")
-;; "The current regexp used by completion-search-next.
+;; "The current regexp used by completion-search-next.
;; (derived from cmpl-test-string)"
(defvar cmpl-last-index 0)
;; "The last index that completion-search-next was called with."
(cond ((not cmpl-next-possibilities))
;; If no more possibilities, leave it that way
((= -1 cmpl-last-index)
- ;; next completion is at index 0. reset next-possibility list
+ ;; next completion is at index 0. reset next-possibility list
;; to start at beginning
(setq cmpl-next-possibilities cmpl-starting-possibilities))
(t
(prog1
cmpl-next-possibility
(setq cmpl-next-possibility nil)))
-
+
(defun completion-search-peek (use-cdabbrev)
- "Returns the next completion entry without actually moving the pointers.
-Calling this again or calling `completion-search-next' results in the same
+ "Return the next completion entry without actually moving the pointers.
+Calling this again or calling `completion-search-next' results in the same
string being returned. Depends on `case-fold-search'.
If there are no more entries, try cdabbrev and then return only a string."
(cond
;; Tests --
;; - Add and Find -
-;; (add-completion "banana")
-;; (completion-search-reset "ban")
+;; (add-completion "banana")
+;; (completion-search-reset "ban")
;; (completion-search-next 0) --> "banana"
;;
;; - Discrimination -
-;; (add-completion "cumberland")
-;; (add-completion "cumberbund")
-;; cumbering
+;; (add-completion "cumberland")
+;; (add-completion "cumberbund")
+;; cumbering
;; (completion-search-reset "cumb")
;; (completion-search-peek t) --> "cumberbund"
;; (completion-search-next 0) --> "cumberbund"
;;
;; - Deleting -
;; (kill-completion "cumberland")
-;; cummings
+;; cummings
;; (completion-search-reset "cum")
;; (completion-search-next 0) --> "cumberbund"
;; (completion-search-next 1) --> "cummings"
(interactive)
(setq enable-completion (not enable-completion))
(message "Completion mode is now %s." (if enable-completion "ON" "OFF")))
-
+
(defvar cmpl-current-index 0)
(defvar cmpl-original-string nil)
(defvar cmpl-last-insert-location -1)
(defvar cmpl-leave-point-at-start nil)
(defun complete (&optional arg)
- "Fill out a completion of the word before point.
+ "Fill out a completion of the word before point.
Point is left at end. Consecutive calls rotate through all possibilities.
Prefix args ::
- control-u :: leave the point at the beginning of the completion rather
+ control-u :: leave the point at the beginning of the completion rather
than at the end.
a number :: rotate through the possible completions by that amount
`-' :: same as -1 (insert previous completion)
(setq cmpl-current-index (+ cmpl-current-index (or arg 1))))
(t
(if (not cmpl-initialized-p)
- (initialize-completions)) ;; make sure everything's loaded
+ (completion-initialize)) ;; make sure everything's loaded
(cond ((consp current-prefix-arg) ;; control-u
(setq arg 0)
(setq cmpl-leave-point-at-start t))
(setq this-command 'failed-complete)
(error "To complete, point must be after a symbol at least %d character long"
completion-prefix-min-length)))
- ;; get index
+ ;; get index
(setq cmpl-current-index (if current-prefix-arg arg 0))
;; statistics
(cmpl-statistics-block
;; Get the next completion
(let* ((print-status-p
(and (>= baud-rate completion-prompt-speed-threshold)
- (not (minibuffer-window-selected-p))))
+ (not (window-minibuffer-p (selected-window)))))
(insert-point (point))
(entry (completion-search-next cmpl-current-index))
string)
(setq string (cmpl-merge-string-cases
string cmpl-original-string))
(message "Next completion: %s" string))))
- (t;; none found, insert old
+ (t;; none found, insert old
(insert cmpl-original-string)
;; Don't accept completions
(setq completion-to-accept nil)
(let ((completions-merging-modes nil))
(setq buffer (find-file-noselect file))))
(unwind-protect
- (save-excursion
- (set-buffer buffer)
- (add-completions-from-buffer))
+ (with-current-buffer buffer
+ (add-completions-from-buffer))
(if (not buffer-already-there-p)
(kill-buffer buffer)))))
start-num)))))
;; Find file hook
-(defun cmpl-find-file-hook ()
+(defun completion-find-file-hook ()
(cond (enable-completion
(cond ((and (memq major-mode '(emacs-lisp-mode lisp-mode))
(memq 'lisp completions-merging-modes))
;; (and (string-match *lisp-def-regexp* "\n(def-bar foo")(match-end 0)) -> 10
;; (and (string-match *lisp-def-regexp* "\n(defun (foo") (match-end 0)) -> 9
-;; Parses all the definition names from a Lisp mode buffer and adds them to
+;; Parses all the definition names from a Lisp mode buffer and adds them to
;; the completion database.
(defun add-completions-from-lisp-buffer ()
;;; Benchmarks
;; Whitespace chars (have symbol syntax)
;; Everything else has word syntax
-(defun cmpl-make-c-def-completion-syntax-table ()
+(defconst completion-c-def-syntax-table
(let ((table (make-syntax-table))
(whitespace-chars '(? ?\n ?\t ?\f ?\v ?\r))
;; unfortunately the ?( causes the parens to appear unbalanced
(modify-syntax-entry ?\} "){" table)
table))
-(defconst cmpl-c-def-syntax-table (cmpl-make-c-def-completion-syntax-table))
-
;; Regexps
(defconst *c-def-regexp*
;; This stops on lines with possible definitions
;; (test-c-def-regexp *c-cont-regexp* "oo {trout =1} my_carp;") -> 14
;; (test-c-def-regexp *c-cont-regexp* "truct_p complex foon") -> nil
-;; Parses all the definition names from a C mode buffer and adds them to the
+;; Parses all the definition names from a C mode buffer and adds them to the
;; completion database.
(defun add-completions-from-c-buffer ()
;; Benchmark --
;; Sun 3/280-- 1250 lines/sec.
- (let (string next-point char
- (saved-syntax (syntax-table)))
+ (let (string next-point char)
(save-excursion
(goto-char (point-min))
(catch 'finish-add-completions
- (unwind-protect
- (while t
- ;; we loop here only when scan-sexps fails
- ;; (i.e. unbalance exps.)
- (set-syntax-table cmpl-c-def-syntax-table)
- (condition-case e
- (while t
- (re-search-forward *c-def-regexp*)
- (cond
- ((= (preceding-char) ?#)
- ;; preprocessor macro, see if it's one we handle
- (setq string (buffer-substring (point) (+ (point) 6)))
- (cond ((or (string-equal string "define")
- (string-equal string "ifdef "))
- ;; skip forward over definition symbol
- ;; and add it to database
- (and (forward-word 2)
- (setq string (symbol-before-point))
- ;;(push string foo)
- (add-completion-to-tail-if-new string)))))
- (t
- ;; C definition
- (setq next-point (point))
- (while (and
- next-point
- ;; scan to next separator char.
- (setq next-point (scan-sexps next-point 1)))
- ;; position the point on the word we want to add
- (goto-char next-point)
- (while (= (setq char (following-char)) ?*)
- ;; handle pointer ref
- ;; move to next separator char.
- (goto-char
- (setq next-point (scan-sexps (point) 1))))
- (forward-word -1)
- ;; add to database
- (if (setq string (symbol-under-point))
- ;; (push string foo)
- (add-completion-to-tail-if-new string)
- ;; Local TMC hack (useful for parsing paris.h)
- (if (and (looking-at "_AP") ;; "ansi prototype"
- (progn
- (forward-word -1)
- (setq string
- (symbol-under-point))))
- (add-completion-to-tail-if-new string)))
- ;; go to next
- (goto-char next-point)
- ;; (push (format "%c" (following-char)) foo)
- (if (= (char-syntax char) ?\()
- ;; if on an opening delimiter, go to end
- (while (= (char-syntax char) ?\()
- (setq next-point (scan-sexps next-point 1)
- char (char-after next-point)))
- (or (= char ?,)
- ;; Current char is an end char.
- (setq next-point nil)))))))
- (search-failed ;;done
- (throw 'finish-add-completions t))
- (error
- ;; Check for failure in scan-sexps
- (if (or (string-equal (nth 1 e)
- "Containing expression ends prematurely")
- (string-equal (nth 1 e) "Unbalanced parentheses"))
- ;; unbalanced paren., keep going
- ;;(ding)
- (forward-line 1)
- (message "Error parsing C buffer for completions--please send bug report")
- (throw 'finish-add-completions t)))))
- (set-syntax-table saved-syntax))))))
+ (with-syntax-table completion-c-def-syntax-table
+ (while t
+ ;; we loop here only when scan-sexps fails
+ ;; (i.e. unbalance exps.)
+ (condition-case e
+ (while t
+ (re-search-forward *c-def-regexp*)
+ (cond
+ ((= (preceding-char) ?#)
+ ;; preprocessor macro, see if it's one we handle
+ (setq string (buffer-substring (point) (+ (point) 6)))
+ (cond ((member string '("define" "ifdef "))
+ ;; skip forward over definition symbol
+ ;; and add it to database
+ (and (forward-word 2)
+ (setq string (symbol-before-point))
+ ;;(push string foo)
+ (add-completion-to-tail-if-new string)))))
+ (t
+ ;; C definition
+ (setq next-point (point))
+ (while (and
+ next-point
+ ;; scan to next separator char.
+ (setq next-point (scan-sexps next-point 1)))
+ ;; position the point on the word we want to add
+ (goto-char next-point)
+ (while (= (setq char (following-char)) ?*)
+ ;; handle pointer ref
+ ;; move to next separator char.
+ (goto-char
+ (setq next-point (scan-sexps (point) 1))))
+ (forward-word -1)
+ ;; add to database
+ (if (setq string (symbol-under-point))
+ ;; (push string foo)
+ (add-completion-to-tail-if-new string)
+ ;; Local TMC hack (useful for parsing paris.h)
+ (if (and (looking-at "_AP") ;; "ansi prototype"
+ (progn
+ (forward-word -1)
+ (setq string
+ (symbol-under-point))))
+ (add-completion-to-tail-if-new string)))
+ ;; go to next
+ (goto-char next-point)
+ ;; (push (format "%c" (following-char)) foo)
+ (if (= (char-syntax char) ?\()
+ ;; if on an opening delimiter, go to end
+ (while (= (char-syntax char) ?\()
+ (setq next-point (scan-sexps next-point 1)
+ char (char-after next-point)))
+ (or (= char ?,)
+ ;; Current char is an end char.
+ (setq next-point nil)))))))
+ (search-failed ;;done
+ (throw 'finish-add-completions t))
+ (error
+ ;; Check for failure in scan-sexps
+ (if (or (string-equal (nth 1 e)
+ "Containing expression ends prematurely")
+ (string-equal (nth 1 e) "Unbalanced parentheses"))
+ ;; unbalanced paren., keep going
+ ;;(ding)
+ (forward-line 1)
+ (message "Error parsing C buffer for completions--please send bug report")
+ (throw 'finish-add-completions t))))))))))
\f
;;---------------------------------------------------------------------------
((not cmpl-completions-accepted-p)
(message "Completions database has not changed - not writing."))
(t
- (save-completions-to-file)))))
+ (save-completions-to-file))))
+ (cmpl-statistics-block (record-cmpl-kill-emacs)))
;; There is no point bothering to change this again
;; unless the package changes so much that it matters
(if (file-writable-p filename)
(progn
(if (not cmpl-initialized-p)
- (initialize-completions));; make sure everything's loaded
+ (completion-initialize)) ;; make sure everything's loaded
(message "Saving completions to file %s" filename)
(let* ((delete-old-versions t)
(total-perm 0)
(total-saved 0)
(backup-filename (completion-backup-filename filename)))
-
- (save-excursion
- (get-buffer-create " *completion-save-buffer*")
- (set-buffer " *completion-save-buffer*")
+
+ (with-current-buffer (get-buffer-create " *completion-save-buffer*")
(setq buffer-file-name filename)
(if (not (verify-visited-file-modtime (current-buffer)))
(setq total-saved (1+ total-saved))
(insert (prin1-to-string (cons (completion-string completion)
last-use-time)) "\n"))))
-
+
;; write the buffer
(condition-case e
(let ((file-exists-p (file-exists-p filename)))
;; If file exists . . .
;; Save a backup(so GNU doesn't screw us when we're out of disk)
;; (GNU leaves a 0 length file if it gets a disk full error!)
-
+
;; If backup doesn't exit, Rename current to backup
;; {If backup exists the primary file is probably messed up}
(or (file-exists-p backup-filename)
(if (not no-message-p)
(message "Loading completions from %sfile %s . . ."
(if backup-readable-p "backup " "") filename))
- (save-excursion
- (get-buffer-create " *completion-save-buffer*")
- (set-buffer " *completion-save-buffer*")
+ (with-current-buffer (get-buffer-create " *completion-save-buffer*")
(setq buffer-file-name filename)
;; prepare the buffer to be modified
(clear-visited-file-modtime)
(erase-buffer)
-
+
(let ((insert-okay-p nil)
(buffer (current-buffer))
- (current-time (cmpl-hours-since-origin))
- string num-uses entry last-use-time
+ string entry last-use-time
cmpl-entry cmpl-last-use-time
(current-completion-source cmpl-source-init-file)
(start-num
(progn (insert-file-contents filename t)
(setq insert-okay-p t))
- (file-error
+ (file-error
(message "File error trying to load completion file %s."
filename)))
- ;; parse it
+ ;; parse it
(if insert-okay-p
(progn
(goto-char (point-min))
(completion-last-use-time
(setq cmpl-entry
(add-completion-to-tail-if-new string))))
- (if (or (eq last-use-time t)
+ (if (or (eq last-use-time t)
(and (> last-use-time 1000);;backcompatibility
(not (eq cmpl-last-use-time t))
(or (not cmpl-last-use-time)
start-num)))
))))))
-(defun initialize-completions ()
+(defun completion-initialize ()
"Load the default completions file.
-Also sets up so that exiting emacs will automatically save the file."
+Also sets up so that exiting Emacs will automatically save the file."
(interactive)
- (cond ((not cmpl-initialized-p)
- (load-completions-from-file)))
- (setq cmpl-initialized-p t))
+ (unless cmpl-initialized-p
+ (load-completions-from-file)
+ (setq cmpl-initialized-p t)))
\f
;;-----------------------------------------------
;; Kill region patch
/(If you want to kill and then yank immediately, use \\[copy-region-as-kill].)
This is the primitive for programs to kill text (as opposed to deleting it).
-Supply two arguments, character numbers indicating the stretch of text
+Supply two arguments, character positions indicating the stretch of text
to be killed.
Any command that calls this function is a \"kill command\".
If the previous command was also a kill command,
the text killed this time appends to the text killed last time
to make one entry in the kill ring.
Patched to remove the most recent completion."
- (interactive "r")
+ (interactive "r")
(cond ((eq last-command 'complete)
(delete-region (point) cmpl-last-insert-location)
(insert cmpl-original-string)
;; All common separators (eg. space "(" ")" """) characters go through a
;; function to add new words to the list of words to complete from:
;; COMPLETION-SEPARATOR-SELF-INSERT-COMMAND (arg).
-;; If the character before this was an alpha-numeric then this adds the
+;; If the character before this was an alpha-numeric then this adds the
;; symbol before point to the completion list (using ADD-COMPLETION).
(defun completion-separator-self-insert-command (arg)
;; Wrapping Macro
;;-----------------------------------------------
-;; Note that because of the way byte compiling works, none of
+;; Note that because of the way byte compiling works, none of
;; the functions defined with this macro get byte compiled.
-(defmacro def-completion-wrapper (function-name type &optional new-name)
+(defun completion-def-wrapper (function-name type)
"Add a call to update the completion database before function execution.
TYPE is the type of the wrapper to be added. Can be :before or :under."
- (cond ((eq type :separator)
- (list 'put (list 'quote function-name) ''completion-function
- ''use-completion-before-separator))
- ((eq type :before)
- (list 'put (list 'quote function-name) ''completion-function
- ''use-completion-before-point))
- ((eq type :backward-under)
- (list 'put (list 'quote function-name) ''completion-function
- ''use-completion-backward-under))
- ((eq type :backward)
- (list 'put (list 'quote function-name) ''completion-function
- ''use-completion-backward))
- ((eq type :under)
- (list 'put (list 'quote function-name) ''completion-function
- ''use-completion-under-point))
- ((eq type :under-or-before)
- (list 'put (list 'quote function-name) ''completion-function
- ''use-completion-under-or-before-point))
- ((eq type :minibuffer-separator)
- (list 'put (list 'quote function-name) ''completion-function
- ''use-completion-minibuffer-separator))))
+ (put function-name 'completion-function
+ (cdr (assq type
+ '((:separator . use-completion-before-separator)
+ (:before . use-completion-before-point)
+ (:backward-under . use-completion-backward-under)
+ (:backward . use-completion-backward)
+ (:under . use-completion-under-point)
+ (:under-or-before . use-completion-under-or-before-point)
+ (:minibuffer-separator
+ . use-completion-minibuffer-separator))))))
(defun use-completion-minibuffer-separator ()
- (let ((cmpl-syntax-table cmpl-standard-syntax-table))
+ (let ((completion-syntax-table completion-standard-syntax-table))
(use-completion-before-separator)))
(defun use-completion-backward-under ()
(get this-command 'completion-function))
'use-completion-under-or-before-point)))
\f
+;; Lisp mode diffs.
+
+(defconst completion-lisp-syntax-table
+ (let ((table (copy-syntax-table completion-standard-syntax-table))
+ (symbol-chars '(?! ?& ?? ?= ?^)))
+ (dolist (char symbol-chars)
+ (modify-syntax-entry char "_" table))
+ table))
+
+(defun completion-lisp-mode-hook ()
+ (setq completion-syntax-table completion-lisp-syntax-table)
+ ;; Lisp Mode diffs
+ (local-set-key "!" 'self-insert-command)
+ (local-set-key "&" 'self-insert-command)
+ (local-set-key "%" 'self-insert-command)
+ (local-set-key "?" 'self-insert-command)
+ (local-set-key "=" 'self-insert-command)
+ (local-set-key "^" 'self-insert-command))
+
;; C mode diffs.
+
+(defconst completion-c-syntax-table
+ (let ((table (copy-syntax-table completion-standard-syntax-table))
+ (separator-chars '(?+ ?* ?/ ?: ?%)))
+ (dolist (char separator-chars)
+ (modify-syntax-entry char " " table))
+ table))
+
+(completion-def-wrapper 'electric-c-semi :separator)
(defun completion-c-mode-hook ()
- (def-completion-wrapper electric-c-semi :separator)
- (define-key c-mode-map "+" 'completion-separator-self-insert-command)
- (define-key c-mode-map "*" 'completion-separator-self-insert-command)
- (define-key c-mode-map "/" 'completion-separator-self-insert-command))
-;; Do this either now or whenever C mode is loaded.
-(if (featurep 'cc-mode)
- (completion-c-mode-hook)
- (add-hook 'c-mode-hook 'completion-c-mode-hook))
+ (setq completion-syntax-table completion-c-syntax-table)
+ (local-set-key "+" 'completion-separator-self-insert-command)
+ (local-set-key "*" 'completion-separator-self-insert-command)
+ (local-set-key "/" 'completion-separator-self-insert-command))
;; FORTRAN mode diffs. (these are defined when fortran is called)
+
+(defconst completion-fortran-syntax-table
+ (let ((table (copy-syntax-table completion-standard-syntax-table))
+ (separator-chars '(?+ ?- ?* ?/ ?:)))
+ (dolist (char separator-chars)
+ (modify-syntax-entry char " " table))
+ table))
+
(defun completion-setup-fortran-mode ()
- (define-key fortran-mode-map "+" 'completion-separator-self-insert-command)
- (define-key fortran-mode-map "-" 'completion-separator-self-insert-command)
- (define-key fortran-mode-map "*" 'completion-separator-self-insert-command)
- (define-key fortran-mode-map "/" 'completion-separator-self-insert-command))
+ (setq completion-syntax-table completion-fortran-syntax-table)
+ (local-set-key "+" 'completion-separator-self-insert-command)
+ (local-set-key "-" 'completion-separator-self-insert-command)
+ (local-set-key "*" 'completion-separator-self-insert-command)
+ (local-set-key "/" 'completion-separator-self-insert-command))
\f
-;;; Enable completion mode.
-
+;; Enable completion mode.
+
+(defvar fortran-mode-hook)
+
+(defvar completion-saved-bindings nil)
+
;;;###autoload
-(defun dynamic-completion-mode ()
+(define-minor-mode dynamic-completion-mode
"Enable dynamic word-completion."
- (interactive)
- (add-hook 'find-file-hooks 'cmpl-find-file-hook)
- (add-hook 'pre-command-hook 'completion-before-command)
-
- ;; Install the appropriate mode tables.
- (add-hook 'lisp-mode-hook
- (lambda ()
- (setq cmpl-syntax-table cmpl-lisp-syntax-table)))
- (add-hook 'c-mode-hook
- (lambda ()
- (setq cmpl-syntax-table cmpl-c-syntax-table)))
- (add-hook 'fortran-mode-hook
- (lambda ()
- (setq cmpl-syntax-table cmpl-fortran-syntax-table)
- (completion-setup-fortran-mode)))
-
- ;; "Complete" Key Keybindings.
-
- (global-set-key "\M-\r" 'complete)
- (global-set-key [?\C-\r] 'complete)
+ :global t
+ ;; This is always good, not specific to dynamic-completion-mode.
(define-key function-key-map [C-return] [?\C-\r])
- ;; Tests -
- ;; (add-completion "cumberland")
- ;; (add-completion "cumberbund")
- ;; cum
- ;; Cumber
- ;; cumbering
- ;; cumb
-
- ;; Save completions when killing Emacs.
-
- (add-hook 'kill-emacs-hook
- (lambda ()
- (kill-emacs-save-completions)
- (cmpl-statistics-block
- (record-cmpl-kill-emacs))))
-
- ;; Patches to standard keymaps insert completions
- (substitute-key-definition 'kill-region 'completion-kill-region
- global-map)
-
- ;; Separators
- ;; We've used the completion syntax table given as a guide.
- ;;
- ;; Global separator chars.
- ;; We left out <tab> because there are too many special cases for it. Also,
- ;; in normal coding it's rarely typed after a word.
- (global-set-key " " 'completion-separator-self-insert-autofilling)
- (global-set-key "!" 'completion-separator-self-insert-command)
- (global-set-key "%" 'completion-separator-self-insert-command)
- (global-set-key "^" 'completion-separator-self-insert-command)
- (global-set-key "&" 'completion-separator-self-insert-command)
- (global-set-key "(" 'completion-separator-self-insert-command)
- (global-set-key ")" 'completion-separator-self-insert-command)
- (global-set-key "=" 'completion-separator-self-insert-command)
- (global-set-key "`" 'completion-separator-self-insert-command)
- (global-set-key "|" 'completion-separator-self-insert-command)
- (global-set-key "{" 'completion-separator-self-insert-command)
- (global-set-key "}" 'completion-separator-self-insert-command)
- (global-set-key "[" 'completion-separator-self-insert-command)
- (global-set-key "]" 'completion-separator-self-insert-command)
- (global-set-key ";" 'completion-separator-self-insert-command)
- (global-set-key "\"" 'completion-separator-self-insert-command)
- (global-set-key "'" 'completion-separator-self-insert-command)
- (global-set-key "#" 'completion-separator-self-insert-command)
- (global-set-key "," 'completion-separator-self-insert-command)
- (global-set-key "?" 'completion-separator-self-insert-command)
-
- ;; We include period and colon even though they are symbol chars because :
- ;; - in text we want to pick up the last word in a sentence.
- ;; - in C pointer refs. we want to pick up the first symbol
- ;; - it won't make a difference for lisp mode (package names are short)
- (global-set-key "." 'completion-separator-self-insert-command)
- (global-set-key ":" 'completion-separator-self-insert-command)
+ (dolist (x '((find-file-hook . completion-find-file-hook)
+ (pre-command-hook . completion-before-command)
+ ;; Save completions when killing Emacs.
+ (kill-emacs-hook . kill-emacs-save-completions)
+
+ ;; Install the appropriate mode tables.
+ (lisp-mode-hook . completion-lisp-mode-hook)
+ (c-mode-hook . completion-c-mode-hook)
+ (fortran-mode-hook . completion-setup-fortran-mode)))
+ (if dynamic-completion-mode
+ (add-hook (car x) (cdr x))
+ (remove-hook (car x) (cdr x))))
+
+ ;; "Complete" Key Keybindings. We don't want to use a minor-mode
+ ;; map because these have too high a priority. We could/should
+ ;; probably change the interpretation of minor-mode-map-alist such
+ ;; that a map has lower precedence if the symbol is not buffer-local.
+ (while completion-saved-bindings
+ (let ((binding (pop completion-saved-bindings)))
+ (global-set-key (car binding) (cdr binding))))
+ (when dynamic-completion-mode
+ (dolist (binding
+ '(("\M-\r" . complete)
+ ([?\C-\r] . complete)
+
+ ;; Tests -
+ ;; (add-completion "cumberland")
+ ;; (add-completion "cumberbund")
+ ;; cum
+ ;; Cumber
+ ;; cumbering
+ ;; cumb
+
+ ;; Patches to standard keymaps insert completions
+ ([remap kill-region] . completion-kill-region)
+
+ ;; Separators
+ ;; We've used the completion syntax table given as a guide.
+ ;;
+ ;; Global separator chars.
+ ;; We left out <tab> because there are too many special
+ ;; cases for it. Also, in normal coding it's rarely typed
+ ;; after a word.
+ (" " . completion-separator-self-insert-autofilling)
+ ("!" . completion-separator-self-insert-command)
+ ("%" . completion-separator-self-insert-command)
+ ("^" . completion-separator-self-insert-command)
+ ("&" . completion-separator-self-insert-command)
+ ("(" . completion-separator-self-insert-command)
+ (")" . completion-separator-self-insert-command)
+ ("=" . completion-separator-self-insert-command)
+ ("`" . completion-separator-self-insert-command)
+ ("|" . completion-separator-self-insert-command)
+ ("{" . completion-separator-self-insert-command)
+ ("}" . completion-separator-self-insert-command)
+ ("[" . completion-separator-self-insert-command)
+ ("]" . completion-separator-self-insert-command)
+ (";" . completion-separator-self-insert-command)
+ ("\"". completion-separator-self-insert-command)
+ ("'" . completion-separator-self-insert-command)
+ ("#" . completion-separator-self-insert-command)
+ ("," . completion-separator-self-insert-command)
+ ("?" . completion-separator-self-insert-command)
+
+ ;; We include period and colon even though they are symbol
+ ;; chars because :
+ ;; - in text we want to pick up the last word in a sentence.
+ ;; - in C pointer refs. we want to pick up the first symbol
+ ;; - it won't make a difference for lisp mode (package names
+ ;; are short)
+ ("." . completion-separator-self-insert-command)
+ (":" . completion-separator-self-insert-command)))
+ (push (cons (car binding) (lookup-key global-map (car binding)))
+ completion-saved-bindings)
+ (global-set-key (car binding) (cdr binding)))
+
+ ;; Tests --
+ ;; foobarbiz
+ ;; foobar
+ ;; fooquux
+ ;; fooper
- ;; Lisp Mode diffs
- (define-key lisp-mode-map "!" 'self-insert-command)
- (define-key lisp-mode-map "&" 'self-insert-command)
- (define-key lisp-mode-map "%" 'self-insert-command)
- (define-key lisp-mode-map "?" 'self-insert-command)
- (define-key lisp-mode-map "=" 'self-insert-command)
- (define-key lisp-mode-map "^" 'self-insert-command)
-
- ;; Avoid warnings.
- (defvar c-mode-map)
- (defvar fortran-mode-map)
-
- ;;-----------------------------------------------
- ;; End of line chars.
- ;;-----------------------------------------------
- (def-completion-wrapper newline :separator)
- (def-completion-wrapper newline-and-indent :separator)
- (def-completion-wrapper comint-send-input :separator)
- (def-completion-wrapper exit-minibuffer :minibuffer-separator)
- (def-completion-wrapper eval-print-last-sexp :separator)
- (def-completion-wrapper eval-last-sexp :separator)
- ;;(def-completion-wrapper minibuffer-complete-and-exit :minibuffer)
-
- ;;-----------------------------------------------
- ;; Cursor movement
- ;;-----------------------------------------------
-
- (def-completion-wrapper next-line :under-or-before)
- (def-completion-wrapper previous-line :under-or-before)
- (def-completion-wrapper beginning-of-buffer :under-or-before)
- (def-completion-wrapper end-of-buffer :under-or-before)
- (def-completion-wrapper beginning-of-line :under-or-before)
- (def-completion-wrapper end-of-line :under-or-before)
- (def-completion-wrapper forward-char :under-or-before)
- (def-completion-wrapper forward-word :under-or-before)
- (def-completion-wrapper forward-sexp :under-or-before)
- (def-completion-wrapper backward-char :backward-under)
- (def-completion-wrapper backward-word :backward-under)
- (def-completion-wrapper backward-sexp :backward-under)
-
- (def-completion-wrapper delete-backward-char :backward)
- (def-completion-wrapper delete-backward-char-untabify :backward)
-
- ;; Tests --
- ;; foobarbiz
- ;; foobar
- ;; fooquux
- ;; fooper
+ (cmpl-statistics-block
+ (record-completion-file-loaded))
- (cmpl-statistics-block
- (record-completion-file-loaded))
+ (completion-initialize)))
- (initialize-completions))
+;;-----------------------------------------------
+;; End of line chars.
+;;-----------------------------------------------
+(completion-def-wrapper 'newline :separator)
+(completion-def-wrapper 'newline-and-indent :separator)
+(completion-def-wrapper 'comint-send-input :separator)
+(completion-def-wrapper 'exit-minibuffer :minibuffer-separator)
+(completion-def-wrapper 'eval-print-last-sexp :separator)
+(completion-def-wrapper 'eval-last-sexp :separator)
+;;(completion-def-wrapper 'minibuffer-complete-and-exit :minibuffer)
+
+;;-----------------------------------------------
+;; Cursor movement
+;;-----------------------------------------------
-(mapc (lambda (x)
- (add-to-list 'debug-ignored-errors x))
- '("^To complete, the point must be after a symbol at least [0-9]* character long\\.$"
+(completion-def-wrapper 'next-line :under-or-before)
+(completion-def-wrapper 'previous-line :under-or-before)
+(completion-def-wrapper 'beginning-of-buffer :under-or-before)
+(completion-def-wrapper 'end-of-buffer :under-or-before)
+(completion-def-wrapper 'beginning-of-line :under-or-before)
+(completion-def-wrapper 'end-of-line :under-or-before)
+(completion-def-wrapper 'forward-char :under-or-before)
+(completion-def-wrapper 'forward-word :under-or-before)
+(completion-def-wrapper 'forward-sexp :under-or-before)
+(completion-def-wrapper 'backward-char :backward-under)
+(completion-def-wrapper 'backward-word :backward-under)
+(completion-def-wrapper 'backward-sexp :backward-under)
+
+(completion-def-wrapper 'delete-backward-char :backward)
+(completion-def-wrapper 'delete-backward-char-untabify :backward)
+
+;; Old names, non-namespace-clean.
+(defvaralias 'cmpl-syntax-table 'completion-syntax-table)
+(defalias 'initialize-completions 'completion-initialize)
+
+(dolist (x '("^To complete, the point must be after a symbol at least [0-9]* character long\\.$"
"^The string \".*\" is too short to be saved as a completion\\.$"))
+ (add-to-list 'debug-ignored-errors x))
(provide 'completion)
+;; arch-tag: 6990dafe-4abd-4a1f-8c42-ffb25e120f5e
;;; completion.el ends here