cl-indent.el

早期freebsd实现

                       normal-indent)))
                ((eq tem '&rest)
                 ;; this pattern holds for all remaining forms
                 (setq tail (> n 0)
                       n 0
                       method (cdr method)))
                ((> n 0)
                 ;; try next element of pattern
                 (setq n (1- n)
                       method (cdr method))
                 (if (< n 0)
                     ;; Too few elements in pattern.
                     (throw 'exit normal-indent)))
                ((eq tem 'nil)
                 (throw 'exit (list normal-indent containing-form-start)))
;               ((eq tem '&lambda)
;                ;; abbrev for (&whole 4 &rest 1)
;                (throw 'exit
;                  (cond ((null p)
;                         (list (+ sexp-column 4) containing-form-start))
;                        ((null (cdr p))
;                         (+ sexp-column 1))
;                        (t normal-indent))))
                ((integerp tem)
                 (throw 'exit
                   (if (null p)         ;not in subforms
                       (list (+ sexp-column tem) containing-form-start)
                       normal-indent)))
                ((symbolp tem)          ;a function to call
                 (throw 'exit
                   (funcall tem path state indent-point
                            sexp-column normal-indent)))
                (t
                 ;; must be a destructing frob
                 (if (not (null p))
                     ;; descend
                     (setq method (cdr (cdr tem))
                           n nil)
                   (setq tem (car (cdr tem)))
                   (throw 'exit
                     (cond (tail
                            normal-indent)
                           ((eq tem 'nil)
                            (list normal-indent
                                  containing-form-start))
                           ((integerp tem)
                            (list (+ sexp-column tem)
                                  containing-form-start))
                           (t
                            (funcall tem path state indent-point
                                     sexp-column normal-indent))))))))))))

(defun lisp-indent-tagbody (path state indent-point sexp-column normal-indent)
  (if (not (null (cdr path)))
      normal-indent
    (save-excursion
      (goto-char indent-point)
      (beginning-of-line)
      (skip-chars-forward " \t")
      (list (cond ((looking-at "\\sw\\|\\s_")
                   ;; a tagbody tag
                   (+ sexp-column lisp-tag-indentation))
                  ((integerp lisp-tag-body-indentation)
                   (+ sexp-column lisp-tag-body-indentation))
                  ((eq lisp-tag-body-indentation 't)
                   (condition-case ()
                       (progn (backward-sexp 1) (current-column))
                     (error (1+ sexp-column))))
                  (t (+ sexp-column lisp-body-indent)))
;            (cond ((integerp lisp-tag-body-indentation)
;                   (+ sexp-column lisp-tag-body-indentation))
;                  ((eq lisp-tag-body-indentation 't)
;                   normal-indent)
;                  (t
;                   (+ sexp-column lisp-body-indent)))
            (elt state 1)
            ))))

(defun lisp-indent-do (path state indent-point sexp-column normal-indent)
  (if (>= (car path) 3)
      (let ((lisp-tag-body-indentation lisp-body-indent))
        (funcall (function lisp-indent-tagbody)
		 path state indent-point sexp-column normal-indent))
    (funcall (function lisp-indent-259)
	     '((&whole nil &rest
 		;; the following causes wierd indentation
 		;;(&whole 1 1 2 nil)
		)
	       (&whole nil &rest 1))
	     path state indent-point sexp-column normal-indent)))

(defun lisp-indent-function-lambda-hack (path state indent-point
                                         sexp-column normal-indent)
  ;; indent (function (lambda () <newline> <body-forms>)) kludgily.
  (if (or (cdr path) ; wtf?
          (> (car path) 3))
      ;; line up under previous body form
      normal-indent
    ;; line up under function rather than under lambda in order to
    ;;  conserve horizontal space.  (Which is what #' is for.)
    (condition-case ()
        (save-excursion
          (backward-up-list 2)
          (forward-char 1)
          (if (looking-at "\\(lisp:+\\)?function\\(\\Sw\\|\\S_\\)")
              (+ lisp-body-indent -1 (current-column))
              (+ sexp-column lisp-body-indent)))
       (error (+ sexp-column lisp-body-indent)))))


(let ((l '((block 1)
	   (catch 1)
           (case        (4 &rest (&whole 2 &rest 1)))
           (ccase . case) (ecase . case)
           (typecase . case) (etypecase . case) (ctypecase . case)
           (catch 1)
           (cond        (&rest (&whole 2 &rest 1)))
           (block 1)
           (defvar      (4 2 2))
           (defconstant . defvar) (defparameter . defvar)
           (define-modify-macro
                        (4 &body))
           (define-setf-method
                        (4 (&whole 4 &rest 1) &body))
           (defsetf     (4 (&whole 4 &rest 1) 4 &body))
           (defun       (4 (&whole 4 &rest 1) &body))
           (defmacro . defun) (deftype . defun)
           (defstruct   ((&whole 4 &rest (&whole 2 &rest 1))
                         &rest (&whole 2 &rest 1)))
           (destructuring-bind
                        ((&whole 6 &rest 1) 4 &body))
           (do          lisp-indent-do)
           (do* . do)
           (dolist      ((&whole 4 2 1) &body))
           (dotimes . dolist)
           (eval-when	1)
           (flet        ((&whole 4 &rest (&whole 1 (&whole 4 &rest 1) &body))
                         &body))
           (labels . flet)
           (macrolet . flet)
           ;; `else-body' style
           (if          (nil nil &body))
           ;; single-else style (then and else equally indented)
           (if          (&rest nil))
           ;(lambda     ((&whole 4 &rest 1) &body))
           (lambda      ((&whole 4 &rest 1)
                         &rest lisp-indent-function-lambda-hack))
           (let         ((&whole 4 &rest (&whole 1 1 2)) &body))
           (let* . let)
           (locally	1)
           ;(loop ...)
           (multiple-value-bind
                        ((&whole 6 &rest 1) 4 &body))
           (multiple-value-call
			(4 &body))
           (multiple-value-list 1)
           (multiple-value-prog1 1)
           (multiple-value-setq
			(4 2))
           ;; Combines the worst features of BLOCK, LET and TAGBODY
           (prog        ((&whole 4 &rest 1) &rest lisp-indent-tagbody))
           (prog* . prog)
           (prog1 1)
           (prog2 2)
           (progn 0)
           (progv       (4 4 &body))
           (return 0)
           (return-from (nil &body))
           (tagbody     lisp-indent-tagbody)
           (throw 1)
           (unless 1)
           (unwind-protect
                        (5 &body))
           (when 1))))
  (while l
    (put (car (car l)) 'common-lisp-indent-hook
         (if (symbolp (cdr (car l)))
             (get (cdr (car l)) 'common-lisp-indent-hook)
             (car (cdr (car l)))))
    (setq l (cdr l))))


;(defun foo (x)
;  (tagbody
;   foo
;     (bar)
;   baz
;     (when (losing)
;       (with-big-loser
;           (yow)
;         ((lambda ()
;            foo)
;          big)))
;     (flet ((foo (bar baz zap)
;              (zip))
;            (zot ()
;              quux))
;       (do ()
;           ((lose)
;            (foo 1))
;         (quux)
;        foo
;         (lose))
;       (cond ((x)
;              (win 1 2
;                   (foo)))
;             (t
;              (lose
;                3))))))
          

;(put 'while    'common-lisp-indent-hook 1)
;(put 'defwrapper'common-lisp-indent-hook ...)
;(put 'def 'common-lisp-indent-hook ...)
;(put 'defflavor        'common-lisp-indent-hook ...)
;(put 'defsubst 'common-lisp-indent-hook ...)

;;(put 'define-restart-name 'common-lisp-indent-hook '1)
;(put 'with-restart 'common-lisp-indent-hook '((1 4 ((* 1))) (2 &body)))
;(put 'restart-case 'common-lisp-indent-hook '((1 4) (* 2 ((0 1) (* 1)))))
;(put 'define-condition 'common-lisp-indent-hook '((1 6) (2 6 ((* 1))) (3 4 ((* 1))) (4 &body)))
;(put 'with-condition-handler 'common-lisp-indent-hook '((1 4 ((* 1))) (2 &body)))
;(put 'condition-case 'common-lisp-indent-hook '((1 4) (* 2 ((0 1) (1 3) (2 &body)))))


;;;; Turn it on.
;(setq lisp-indent-hook 'common-lisp-indent-hook)

;; To disable this stuff, (setq lisp-indent-hook 'lisp-indent-hook)