Barry Warsaw committed 2343803

(py-indent-line): take an optional universal argument which says to
defeat extra outdentation for block closing statements (return, raise,
break, continue, pass).

(py-compute-indentation): extra argument to honor block closing

(py-electric-colon, py-indent-region): use py-compute-indentation's
extra argument

(py-statement-closes-block-p): `pass' treated as a block closing

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  • Parent commits 267ae58
  • Branches legacy-trunk

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File Misc/python-mode.el

 ;; - proper interaction with pending-del and del-sel modes.
 ;; - Better support for outdenting: py-electric-colon (:) and
 ;;   py-indent-line (TAB) improvements; one level of outdentation
-;;   added after a return, raise, break, or continue statement
+;;   added after a return, raise, break, pass, or continue statement.
+;;   Defeated by prefixing command with C-u.
 ;; - New py-electric-colon (:) command for improved outdenting  Also
 ;;   py-indent-line (TAB) should handle outdented lines better
 ;; - improved (I think) C-c > and C-c <
 	(let ((here (point))
 	      (outdent 0)
-	      (indent (py-compute-indentation)))
+	      (indent (py-compute-indentation t)))
 	  (if (and (not arg)
 		   (= indent (save-excursion
 			       (py-next-statement -1)
-			       (py-compute-indentation)))
+			       (py-compute-indentation t)))
 	      (setq outdent py-indent-offset))
 	  ;; Don't indent, only outdent.  This assumes that any lines that
 (put 'py-delete-char 'delete-selection 'supersede)
 (put 'py-delete-char 'pending-delete   'supersede)
-(defun py-indent-line ()
-  "Fix the indentation of the current line according to Python rules."
-  (interactive)
+(defun py-indent-line (&optional arg)
+  "Fix the indentation of the current line according to Python rules.
+With \\[universal-argument], ignore outdenting rules for block
+closing statements (e.g. return, raise, break, continue, pass)
+This function is normally bound to `indent-line-function' so
+\\[indent-for-tab-command] will call it."
+  (interactive "P")
   (let* ((ci (current-indentation))
 	 (move-to-indentation-p (<= (current-column) ci))
-	 (need (py-compute-indentation)))
+	 (need (py-compute-indentation (not arg))))
     ;; see if we need to outdent
     (if (py-outdent-p)
 	(setq need (- need py-indent-offset)))
       (insert-char ?\n 1)
       (move-to-column ci))))
-(defun py-compute-indentation ()
+(defun py-compute-indentation (honor-block-close-p)
+  ;; implements all the rules for indentation computation.  when
+  ;; honor-block-close-p is non-nil, statements such as return, raise,
+  ;; break, continue, and pass force one level of outdenting.
     (let ((pps (parse-partial-sexp (save-excursion
 	(+ (current-indentation)
 	   (if (py-statement-opens-block-p)
-	     (if (py-statement-closes-block-p)
+	     (if (and honor-block-close-p (py-statement-closes-block-p))
 		 (- py-indent-offset)
 	  (target-column 0)		; column to which to indent
 	  (base-shifted-by 0)		; amount last base line was shifted
 	  (indent-base (if (looking-at "[ \t\n]")
-			   (py-compute-indentation)
+			   (py-compute-indentation t)
       (while (< (point) end)
 (defun py-statement-closes-block-p ()
   ;; true iff the current statement `closes' a block == the line
-  ;; starts with `return', `raise', `break' or `continue'.  doesn't
-  ;; catch embedded statements
+  ;; starts with `return', `raise', `break', `continue', and `pass'.
+  ;; doesn't catch embedded statements
   (let ((here (point)))
-	(looking-at "\\(return\\|raise\\|break\\|continue\\)\\>")
+	(looking-at "\\(return\\|raise\\|break\\|continue\\|pass\\)\\>")
       (goto-char here))))
 ;; go to point right beyond final line of block begun by the current