;;; cperl-mode.el --- Perl code editing commands for Emacs
-;; Copyright (C) 1985, 86, 87, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2003
+;; Copyright (C) 1985,86,87,91,92,93,94,95,96,97,98,99,2000,03,2004
;; Free Software Foundation, Inc.
;; Author: Ilya Zakharevich and Bob Olson
(substitute-key-definition
'indent-sexp 'cperl-indent-exp
cperl-mode-map global-map)
- (substitute-key-definition
- 'fill-paragraph 'cperl-fill-paragraph
- cperl-mode-map global-map)
(substitute-key-definition
'indent-region 'cperl-indent-region
cperl-mode-map global-map)
["End of function" end-of-defun t]
["Mark function" mark-defun t]
["Indent expression" cperl-indent-exp t]
- ["Fill paragraph/comment" cperl-fill-paragraph t]
+ ["Fill paragraph/comment" fill-paragraph t]
"----"
["Line up a construction" cperl-lineup (cperl-use-region-p)]
["Invert if/unless/while etc" cperl-invert-if-unless t]
(setq paragraph-separate paragraph-start)
(make-local-variable 'paragraph-ignore-fill-prefix)
(setq paragraph-ignore-fill-prefix t)
+ (set (make-local-variable 'fill-paragraph-function) 'cperl-fill-paragraph)
(make-local-variable 'indent-line-function)
(setq indent-line-function 'cperl-indent-line)
(make-local-variable 'require-final-newline)
(cperl-calculate-indent))
(current-indentation))))))))))))))
-(defvar cperl-indent-alist
- '((string nil)
- (comment nil)
- (toplevel 0)
- (toplevel-after-parenth 2)
- (toplevel-continued 2)
- (expression 1))
- "Alist of indentation rules for CPerl mode.
-The values mean:
- nil: do not indent;
- number: add this amount of indentation.
-
-Not finished, not used.")
-
-(defun cperl-where-am-i (&optional parse-start start-state)
- ;; Unfinished
- "Return a list of lists ((TYPE POS)...) of good points before the point.
-POS may be nil if it is hard to find, say, when TYPE is `string' or `comment'.
-
-Not finished, not used."
- (save-excursion
- (let* ((start-point (point))
- (s-s (cperl-get-state))
- (start (nth 0 s-s))
- (state (nth 1 s-s))
- (prestart (nth 3 s-s))
- (containing-sexp (car (cdr state)))
- (case-fold-search nil)
- (res (list (list 'parse-start start) (list 'parse-prestart prestart))))
- (cond ((nth 3 state) ; In string
- (setq res (cons (list 'string nil (nth 3 state)) res))) ; What started string
- ((nth 4 state) ; In comment
- (setq res (cons '(comment) res)))
- ((null containing-sexp)
- ;; Line is at top level.
- ;; Indent like the previous top level line
- ;; unless that ends in a closeparen without semicolon,
- ;; in which case this line is the first argument decl.
- (cperl-backward-to-noncomment (or parse-start (point-min)))
- ;;(skip-chars-backward " \t\f\n")
- (cond
- ((or (bobp)
- (memq (preceding-char) (append ";}" nil)))
- (setq res (cons (list 'toplevel start) res)))
- ((eq (preceding-char) ?\) )
- (setq res (cons (list 'toplevel-after-parenth start) res)))
- (t
- (setq res (cons (list 'toplevel-continued start) res)))))
- ((/= (char-after containing-sexp) ?{)
- ;; line is expression, not statement:
- ;; indent to just after the surrounding open.
- ;; skip blanks if we do not close the expression.
- (setq res (cons (list 'expression-blanks
- (progn
- (goto-char (1+ containing-sexp))
- (or (looking-at "[ \t]*\\(#\\|$\\)")
- (skip-chars-forward " \t"))
- (point)))
- (cons (list 'expression containing-sexp) res))))
- ((progn
- ;; Containing-expr starts with \{. Check whether it is a hash.
- (goto-char containing-sexp)
- (not (cperl-block-p)))
- (setq res (cons (list 'expression-blanks
- (progn
- (goto-char (1+ containing-sexp))
- (or (looking-at "[ \t]*\\(#\\|$\\)")
- (skip-chars-forward " \t"))
- (point)))
- (cons (list 'expression containing-sexp) res))))
- (t
- ;; Statement level.
- (setq res (cons (list 'in-block containing-sexp) res))
- ;; Is it a continuation or a new statement?
- ;; Find previous non-comment character.
- (cperl-backward-to-noncomment containing-sexp)
- ;; Back up over label lines, since they don't
- ;; affect whether our line is a continuation.
- ;; Back up comma-delimited lines too ?????
- (while (or (eq (preceding-char) ?\,)
- (save-excursion (cperl-after-label)))
- (if (eq (preceding-char) ?\,)
- ;; Will go to beginning of line, essentially
- ;; Will ignore embedded sexpr XXXX.
- (cperl-backward-to-start-of-continued-exp containing-sexp))
- (beginning-of-line)
- (cperl-backward-to-noncomment containing-sexp))
- ;; Now we get the answer.
- (if (not (memq (preceding-char) (append ";}{" '(nil)))) ; Was ?\,
- ;; This line is continuation of preceding line's statement.
- (list (list 'statement-continued containing-sexp))
- ;; This line starts a new statement.
- ;; Position following last unclosed open.
- (goto-char containing-sexp)
- ;; Is line first statement after an open-brace?
- (or
- ;; If no, find that first statement and indent like
- ;; it. If the first statement begins with label, do
- ;; not believe when the indentation of the label is too
- ;; small.
- (save-excursion
- (forward-char 1)
- (let ((colon-line-end 0))
- (while (progn (skip-chars-forward " \t\n" start-point)
- (and (< (point) start-point)
- (looking-at
- "#\\|[a-zA-Z_][a-zA-Z0-9_]*:[^:]")))
- ;; Skip over comments and labels following openbrace.
- (cond ((= (following-char) ?\#)
- ;;(forward-line 1)
- (end-of-line))
- ;; label:
- (t
- (save-excursion (end-of-line)
- (setq colon-line-end (point)))
- (search-forward ":"))))
- ;; Now at the point, after label, or at start
- ;; of first statement in the block.
- (and (< (point) start-point)
- (if (> colon-line-end (point))
- ;; Before statement after label
- (if (> (current-indentation)
- cperl-min-label-indent)
- (list (list 'label-in-block (point)))
- ;; Do not believe: `max' is involved
- (list
- (list 'label-in-block-min-indent (point))))
- ;; Before statement
- (list 'statement-in-block (point))))))
- ;; If no previous statement,
- ;; indent it relative to line brace is on.
- ;; For open brace in column zero, don't let statement
- ;; start there too. If cperl-indent-level is zero,
- ;; use cperl-brace-offset + cperl-continued-statement-offset instead.
- ;; For open-braces not the first thing in a line,
- ;; add in cperl-brace-imaginary-offset.
-
- ;; If first thing on a line: ?????
- (+ (if (and (bolp) (zerop cperl-indent-level))
- (+ cperl-brace-offset cperl-continued-statement-offset)
- cperl-indent-level)
- ;; Move back over whitespace before the openbrace.
- ;; If openbrace is not first nonwhite thing on the line,
- ;; add the cperl-brace-imaginary-offset.
- (progn (skip-chars-backward " \t")
- (if (bolp) 0 cperl-brace-imaginary-offset))
- ;; If the openbrace is preceded by a parenthesized exp,
- ;; move to the beginning of that;
- ;; possibly a different line
- (progn
- (if (eq (preceding-char) ?\))
- (forward-sexp -1))
- ;; Get initial indentation of the line we are on.
- ;; If line starts with label, calculate label indentation
- (if (save-excursion
- (beginning-of-line)
- (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_0-9]*:[^:]"))
- (if (> (current-indentation) cperl-min-label-indent)
- (- (current-indentation) cperl-label-offset)
- (cperl-calculate-indent))
- (current-indentation))))))))
- res)))
+;; (defvar cperl-indent-alist
+;; '((string nil)
+;; (comment nil)
+;; (toplevel 0)
+;; (toplevel-after-parenth 2)
+;; (toplevel-continued 2)
+;; (expression 1))
+;; "Alist of indentation rules for CPerl mode.
+;; The values mean:
+;; nil: do not indent;
+;; number: add this amount of indentation.
+
+;; Not finished, not used.")
+
+;; (defun cperl-where-am-i (&optional parse-start start-state)
+;; ;; Unfinished
+;; "Return a list of lists ((TYPE POS)...) of good points before the point.
+;; ;; POS may be nil if it is hard to find, say, when TYPE is `string' or `comment'.
+
+;; ;; Not finished, not used."
+;; (save-excursion
+;; (let* ((start-point (point))
+;; (s-s (cperl-get-state))
+;; (start (nth 0 s-s))
+;; (state (nth 1 s-s))
+;; (prestart (nth 3 s-s))
+;; (containing-sexp (car (cdr state)))
+;; (case-fold-search nil)
+;; (res (list (list 'parse-start start) (list 'parse-prestart prestart))))
+;; (cond ((nth 3 state) ; In string
+;; (setq res (cons (list 'string nil (nth 3 state)) res))) ; What started string
+;; ((nth 4 state) ; In comment
+;; (setq res (cons '(comment) res)))
+;; ((null containing-sexp)
+;; ;; Line is at top level.
+;; ;; Indent like the previous top level line
+;; ;; unless that ends in a closeparen without semicolon,
+;; ;; in which case this line is the first argument decl.
+;; (cperl-backward-to-noncomment (or parse-start (point-min)))
+;; ;;(skip-chars-backward " \t\f\n")
+;; (cond
+;; ((or (bobp)
+;; (memq (preceding-char) (append ";}" nil)))
+;; (setq res (cons (list 'toplevel start) res)))
+;; ((eq (preceding-char) ?\) )
+;; (setq res (cons (list 'toplevel-after-parenth start) res)))
+;; (t
+;; (setq res (cons (list 'toplevel-continued start) res)))))
+;; ((/= (char-after containing-sexp) ?{)
+;; ;; line is expression, not statement:
+;; ;; indent to just after the surrounding open.
+;; ;; skip blanks if we do not close the expression.
+;; (setq res (cons (list 'expression-blanks
+;; (progn
+;; (goto-char (1+ containing-sexp))
+;; (or (looking-at "[ \t]*\\(#\\|$\\)")
+;; (skip-chars-forward " \t"))
+;; (point)))
+;; (cons (list 'expression containing-sexp) res))))
+;; ((progn
+;; ;; Containing-expr starts with \{. Check whether it is a hash.
+;; (goto-char containing-sexp)
+;; (not (cperl-block-p)))
+;; (setq res (cons (list 'expression-blanks
+;; (progn
+;; (goto-char (1+ containing-sexp))
+;; (or (looking-at "[ \t]*\\(#\\|$\\)")
+;; (skip-chars-forward " \t"))
+;; (point)))
+;; (cons (list 'expression containing-sexp) res))))
+;; (t
+;; ;; Statement level.
+;; (setq res (cons (list 'in-block containing-sexp) res))
+;; ;; Is it a continuation or a new statement?
+;; ;; Find previous non-comment character.
+;; (cperl-backward-to-noncomment containing-sexp)
+;; ;; Back up over label lines, since they don't
+;; ;; affect whether our line is a continuation.
+;; ;; Back up comma-delimited lines too ?????
+;; (while (or (eq (preceding-char) ?\,)
+;; (save-excursion (cperl-after-label)))
+;; (if (eq (preceding-char) ?\,)
+;; ;; Will go to beginning of line, essentially
+;; ;; Will ignore embedded sexpr XXXX.
+;; (cperl-backward-to-start-of-continued-exp containing-sexp))
+;; (beginning-of-line)
+;; (cperl-backward-to-noncomment containing-sexp))
+;; ;; Now we get the answer.
+;; (if (not (memq (preceding-char) (append ";}{" '(nil)))) ; Was ?\,
+;; ;; This line is continuation of preceding line's statement.
+;; (list (list 'statement-continued containing-sexp))
+;; ;; This line starts a new statement.
+;; ;; Position following last unclosed open.
+;; (goto-char containing-sexp)
+;; ;; Is line first statement after an open-brace?
+;; (or
+;; ;; If no, find that first statement and indent like
+;; ;; it. If the first statement begins with label, do
+;; ;; not believe when the indentation of the label is too
+;; ;; small.
+;; (save-excursion
+;; (forward-char 1)
+;; (let ((colon-line-end 0))
+;; (while (progn (skip-chars-forward " \t\n" start-point)
+;; (and (< (point) start-point)
+;; (looking-at
+;; "#\\|[a-zA-Z_][a-zA-Z0-9_]*:[^:]")))
+;; ;; Skip over comments and labels following openbrace.
+;; (cond ((= (following-char) ?\#)
+;; ;;(forward-line 1)
+;; (end-of-line))
+;; ;; label:
+;; (t
+;; (save-excursion (end-of-line)
+;; (setq colon-line-end (point)))
+;; (search-forward ":"))))
+;; ;; Now at the point, after label, or at start
+;; ;; of first statement in the block.
+;; (and (< (point) start-point)
+;; (if (> colon-line-end (point))
+;; ;; Before statement after label
+;; (if (> (current-indentation)
+;; cperl-min-label-indent)
+;; (list (list 'label-in-block (point)))
+;; ;; Do not believe: `max' is involved
+;; (list
+;; (list 'label-in-block-min-indent (point))))
+;; ;; Before statement
+;; (list 'statement-in-block (point))))))
+;; ;; If no previous statement,
+;; ;; indent it relative to line brace is on.
+;; ;; For open brace in column zero, don't let statement
+;; ;; start there too. If cperl-indent-level is zero,
+;; ;; use cperl-brace-offset + cperl-continued-statement-offset instead.
+;; ;; For open-braces not the first thing in a line,
+;; ;; add in cperl-brace-imaginary-offset.
+
+;; ;; If first thing on a line: ?????
+;; (+ (if (and (bolp) (zerop cperl-indent-level))
+;; (+ cperl-brace-offset cperl-continued-statement-offset)
+;; cperl-indent-level)
+;; ;; Move back over whitespace before the openbrace.
+;; ;; If openbrace is not first nonwhite thing on the line,
+;; ;; add the cperl-brace-imaginary-offset.
+;; (progn (skip-chars-backward " \t")
+;; (if (bolp) 0 cperl-brace-imaginary-offset))
+;; ;; If the openbrace is preceded by a parenthesized exp,
+;; ;; move to the beginning of that;
+;; ;; possibly a different line
+;; (progn
+;; (if (eq (preceding-char) ?\))
+;; (forward-sexp -1))
+;; ;; Get initial indentation of the line we are on.
+;; ;; If line starts with label, calculate label indentation
+;; (if (save-excursion
+;; (beginning-of-line)
+;; (looking-at "[ \t]*[a-zA-Z_][a-zA-Z_0-9]*:[^:]"))
+;; (if (> (current-indentation) cperl-min-label-indent)
+;; (- (current-indentation) cperl-label-offset)
+;; (cperl-calculate-indent))
+;; (current-indentation))))))))
+;; res)))
(defun cperl-calculate-indent-within-comment ()
"Return the indentation amount for line, assuming that
;; Stolen from lisp-mode with a lot of improvements
(defun cperl-fill-paragraph (&optional justify iteration)
- "Like \\[fill-paragraph], but handle CPerl comments.
+ "Like `fill-paragraph', but handle CPerl comments.
If any of the current line is a comment, fill the comment or the
block of it that point is in, preserving the comment's initial
indentation and initial hashes. Behaves usually outside of comment."
- (interactive "P")
+ ;; (interactive "P") ; Only works when called from fill-paragraph. -stef
(let (;; Non-nil if the current line contains a comment.
has-comment
(looking-at "^[ \t]*#+[ \t]*[^ \t\n#]")))
(point)))
;; Remove existing hashes
- (goto-char (point-min))
- (while (progn (forward-line 1) (< (point) (point-max)))
- (skip-chars-forward " \t")
- (and (looking-at "#+")
- (delete-char (- (match-end 0) (match-beginning 0)))))
+ (save-excursion
+ (goto-char (point-min))
+ (while (progn (forward-line 1) (< (point) (point-max)))
+ (skip-chars-forward " \t")
+ (and (looking-at "#+")
+ (delete-char (- (match-end 0) (match-beginning 0))))))
;; Lines with only hashes on them can be paragraph boundaries.
(let ((paragraph-start (concat paragraph-start "\\|^[ \t#]*$"))
(let ((c (save-excursion (beginning-of-line)
(cperl-to-comment-or-eol) (point)))
(s (memq (following-char) '(?\ ?\t))) marker)
- (if (>= c (point)) nil
+ (if (>= c (point))
+ ;; Don't break line inside code: only inside comment.
+ nil
(setq marker (point-marker))
- (cperl-fill-paragraph)
+ (fill-paragraph nil)
(goto-char marker)
;; Is not enough, sometimes marker is a start of line
(if (bolp) (progn (re-search-forward "#+[ \t]*")
(provide 'cperl-mode)
+;;; arch-tag: 42e5b19b-e187-4537-929f-1a7408980ce6
;;; cperl-mode.el ends here
HCoop / bpt / emacs.git / blobdiff