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- (defgroup expand nil
- "Make abbreviations more usable."
- :group 'abbrev)
- (defcustom expand-load-hook nil
- "Hooks run when `expand.el' is loaded."
- :type 'hook
- :group 'expand)
- (defcustom expand-expand-hook nil
- "Hooks run when an abbrev made by `expand-add-abbrevs' is expanded."
- :type 'hook
- :group 'expand)
- (defcustom expand-jump-hook nil
- "Hooks run by `expand-jump-to-previous-slot' and `expand-jump-to-next-slot'."
- :type 'hook
- :group 'expand)
- (define-skeleton expand-c-for-skeleton "For loop skeleton"
- "Loop var: "
- "for(" str _ @ "=0; " str @ "; " str @ ") {" \n
- @ _ \n
- "}" > \n)
- (defconst expand-c-sample-expand-list
- '(("if" "if () {\n \n} else {\n \n}" (5 10 21))
- ("ifn" "if () {}" (5 8))
- ("uns" "unsigned ")
- ("for" expand-c-for-skeleton)
- ("switch" "switch () {\n\n}" (9 13))
- ("case" "case :\n\nbreak;\n" (6 8 16))
- ("do" "do {\n\n} while ();" (6 16))
- ("while" "while () {\n\n}" (8 12))
- ("default" "default:\n\nbreak;" 10)
- ("main" "int\nmain(int argc, char * argv[])\n{\n\n}\n" 37))
- "Expansions for C mode. See `expand-add-abbrevs'.")
- (defconst expand-sample-lisp-mode-expand-list
- (list
- (list
- "defu"
- (concat
- "(defun ()\n"
- " \"\"\n"
- " (interactive)\n"
- " (let* (\n"
- " )\n"
- " \n"
- " ))")
- (list 8 11 16 32 43 59))
- (list
- "defs"
- (concat
- "(defsubst ()\n"
- " \"\"\n"
- " (interactive)\n"
- " )")
- (list 11 14 19 23 39))
- (list
- "defm"
- (concat
- "(defmacro ()\n"
- " \"\"\n"
- " `( \n"
- " ))")
- (list 11 13 18 25))
- (list
- "defa"
- (concat
- "(defadvice (around act)\n"
- " \"\"\n"
- " \n"
- " )")
- (list 12 22 32 36))
- (list
- "defc"
- "(defconst nil\n \"\")\n"
- (list 11 13 20))
- (list
- "defv"
- "(defvar nil\n \"\")\n"
- (list 9 11 18))
- (list
- "let"
- "(let* (\n)\n "
- (list 8 13))
- (list
- "sav"
- "(save-excursion\n \n)"
- (list 18))
- (list
- "aut"
- "(autoload ' \"\" t t)\n"
- (list 12 14))
- )
- "Expansions for Lisp mode. See `expand-add-abbrevs'.")
- (defconst expand-sample-perl-mode-expand-list
- (list
- (list
-
-
- "sub"
- (concat
- "#" (make-string 70 ?-) "\n"
- "sub {\n"
- " # DESCRIPTION\n"
- " # \n"
- " # \n"
- " # INPUT\n"
- " # \n"
- " # \n"
- " # RETURN\n"
- " # \n"
- "\n"
- " local( $f ) = \"$lib.\";\n"
- " local() = @_;\n"
- " \n"
- " \n}\n"
- )
- (list 77 88 120 146 159 176))
- (list
- "for"
- (concat
- "for ( )\n"
- "{\n\n\}"
- )
- (list 7 12))
- (list
- "whi"
- (concat
- "while ( )\n"
- "{\n\n\}"
- )
- (list 9 15))
-
-
-
- (list
- "iff"
- (concat
- "if ( )\n"
- "{\n\n\}"
- )
- (list 6 12))
- (list "loc" "local( $ );" (list 9))
- (list "my" "my( $ );" (list 6))
- (list "ope" "open(,\"\")\t|| die \"$f: Can't open [$]\";" (list 6 8 36))
- (list "clo" "close ;" 7)
- (list "def" "defined " (list 9))
- (list "und" "undef ;" (list 7))
-
-
-
- (list "pr" "print " 7)
- (list "pf" "printf " 8)
- (list "gre" "grep( //, );" (list 8 11))
- (list "pus" "push( , );" (list 7 9))
- (list "joi" "join( '', );" (list 7 11))
- (list "rtu" "return ;" (list 8))
- )
- "Expansions for Perl mode. See `expand-add-abbrevs'.")
- (defun expand-add-abbrevs (table abbrevs)
- "Add a list of abbreviations to abbrev table TABLE.
- ABBREVS is a list of abbrev definitions; each abbrev description entry
- has the form (ABBREV EXPANSION ARG).
- ABBREV is the abbreviation to replace.
- EXPANSION is the replacement string or a function which will make the
- expansion. For example, you could use the DMacros or skeleton packages
- to generate such functions.
- ARG is an optional argument which can be a number or a list of
- numbers. If ARG is a number, point is placed ARG chars from the
- beginning of the expanded text.
- If ARG is a list of numbers, point is placed according to the first
- member of the list, but you can visit the other specified positions
- cyclically with the functions `expand-jump-to-previous-slot' and
- `expand-jump-to-next-slot'.
- If ARG is omitted, point is placed at the end of the expanded text."
- (if (null abbrevs)
- table
- (expand-add-abbrev table (nth 0 (car abbrevs)) (nth 1 (car abbrevs))
- (nth 2 (car abbrevs)))
- (expand-add-abbrevs table (cdr abbrevs))))
- (defvar expand-list nil "Temporary variable used by the Expand package.")
- (defvar expand-pos nil
- "If non-nil, stores a vector containing markers to positions defined by the last expansion.")
- (make-variable-buffer-local 'expand-pos)
- (defvar expand-index 0
- "Index of the last marker used in `expand-pos'.")
- (make-variable-buffer-local 'expand-index)
- (defvar expand-point nil
- "End of the expanded region.")
- (make-variable-buffer-local 'expand-point)
- (defun expand-add-abbrev (table abbrev expansion arg)
- "Add one abbreviation and provide the hook to move to the specified positions."
- (let* ((string-exp (if (and (symbolp expansion) (fboundp expansion))
- nil
- expansion))
- (position (if (and arg string-exp)
- (if (listp arg)
- (- (length expansion) (1- (car arg)))
- (- (length expansion) (1- arg)))
- 0)))
- (define-abbrev
- table
- abbrev
- (vector string-exp
- position
- (if (and (listp arg)
- (not (null arg)))
- (cons (length string-exp) arg)
- nil)
- (if (and (symbolp expansion) (fboundp expansion))
- expansion
- nil)
- )
- 'expand-abbrev-hook)))
- (put 'expand-abbrev-hook 'no-self-insert t)
- (defun expand-abbrev-hook ()
- "Abbrev hook used to do the expansion job of expand abbrevs.
- See `expand-add-abbrevs'. Value is non-nil if expansion was done."
-
-
- (if (and (eolp)
- (not (expand-in-literal)))
- (let ((p (point)))
- (setq expand-point nil)
-
- (if (and (eq (char-syntax (preceding-char))
- ?w)
- (expand-do-expansion))
- (progn
-
-
- (if expand-point
- (progn
- (if (vectorp expand-list)
- (expand-build-marks expand-point))
- (indent-region p expand-point nil))
-
-
- (if (listp expand-list)
- (setq expand-index 0
- expand-pos (expand-list-to-markers expand-list)
- expand-list nil)))
- (run-hooks 'expand-expand-hook)
- t)
- nil))
- nil))
- (defun expand-do-expansion ()
- (delete-char (- (length last-abbrev-text)))
- (let* ((vect (symbol-value last-abbrev))
- (text (aref vect 0))
- (position (aref vect 1))
- (jump-args (aref vect 2))
- (hook (aref vect 3)))
- (cond (text
- (insert text)
- (setq expand-point (point))))
- (if jump-args
- (funcall 'expand-build-list (car jump-args) (cdr jump-args)))
- (if position
- (backward-char position))
- (if hook
- (funcall hook))
- t)
- )
- (defun expand-abbrev-from-expand (word)
- "Test if an abbrev has a hook."
- (or
- (and (intern-soft word local-abbrev-table)
- (symbol-function (intern-soft word local-abbrev-table)))
- (and (intern-soft word global-abbrev-table)
- (symbol-function (intern-soft word global-abbrev-table)))))
- (defun expand-previous-word ()
- "Return the previous word."
- (save-excursion
- (let ((p (point)))
- (backward-word 1)
- (buffer-substring p (point)))))
- (defun expand-jump-to-previous-slot ()
- "Move the cursor to the previous slot in the last abbrev expansion.
- This is used only in conjunction with `expand-add-abbrevs'."
- (interactive)
- (if expand-pos
- (progn
- (setq expand-index (1- expand-index))
- (if (< expand-index 0)
- (setq expand-index (1- (length expand-pos))))
- (goto-char (aref expand-pos expand-index))
- (run-hooks 'expand-jump-hook))))
- (defun expand-jump-to-next-slot ()
- "Move the cursor to the next slot in the last abbrev expansion.
- This is used only in conjunction with `expand-add-abbrevs'."
- (interactive)
- (if expand-pos
- (progn
- (setq expand-index (1+ expand-index))
- (if (>= expand-index (length expand-pos))
- (setq expand-index 0))
- (goto-char (aref expand-pos expand-index))
- (run-hooks 'expand-jump-hook))))
- (defun expand-build-list (len l)
- "Build a vector of offset positions from the list of positions."
- (expand-clear-markers)
- (setq expand-list (vconcat l))
- (let ((i 0)
- (lenlist (length expand-list)))
- (while (< i lenlist)
- (aset expand-list i (- len (1- (aref expand-list i))))
- (setq i (1+ i))))
- )
- (defun expand-build-marks (p)
- "Transform the offsets vector into a marker vector."
- (if expand-list
- (progn
- (setq expand-index 0)
- (setq expand-pos (make-vector (length expand-list) nil))
- (let ((i (1- (length expand-list))))
- (while (>= i 0)
- (aset expand-pos i (copy-marker (- p (aref expand-list i))))
- (setq i (1- i))))
- (setq expand-list nil))))
- (defun expand-clear-markers ()
- "Make the markers point nowhere."
- (if expand-pos
- (progn
- (let ((i (1- (length expand-pos))))
- (while (>= i 0)
- (set-marker (aref expand-pos i) nil)
- (setq i (1- i))))
- (setq expand-pos nil))))
- (defun expand-in-literal ()
- "Test if we are in a comment or in a string."
- (save-excursion
- (let* ((lim (or (save-excursion
- (beginning-of-defun)
- (point))
- (point-min)))
- (state (parse-partial-sexp lim (point))))
- (cond
- ((nth 3 state) 'string)
- ((nth 4 state) 'comment)
- (t nil)))))
- (defun expand-list-to-markers (l)
- "Transform a list of markers in reverse order into a vector in the correct order."
- (let* ((len (1- (length l)))
- (loop len)
- (v (make-vector (+ len 1) nil)))
- (while (>= loop 0)
- (aset v loop (if (markerp (car l)) (car l) (copy-marker (car l))))
- (setq l (cdr l)
- loop (1- loop)))
- v))
- (defun expand-skeleton-end-hook ()
- (if skeleton-positions
- (setq expand-list skeleton-positions)))
- (add-hook 'skeleton-end-hook (function expand-skeleton-end-hook))
- (provide 'expand)
- (run-hooks 'expand-load-hook)
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