Function: antlr-insert-option-space

antlr-insert-option-space is a byte-compiled function defined in antlr-mode.el.gz.

Signature

(antlr-insert-option-space AREA OLD)

Documentation

Find appropriate place to insert option, insert newlines/spaces.

For AREA and OLD, see antlr-insert-option-do.

Source Code

;; Defined in /usr/src/emacs/lisp/progmodes/antlr-mode.el.gz
(defun antlr-insert-option-space (area old)
  "Find appropriate place to insert option, insert newlines/spaces.
For AREA and OLD, see `antlr-insert-option-do'."
  (let ((orig (point))
	(open t))
    (skip-chars-backward " \t")
    (unless (bolp)
      (let ((before (char-after (1- (point)))))
	(goto-char orig)
	(and old			; with existing options area
	     (consp area)		; if point inside existing area
	     (not (eq before ?\;))	; if not at beginning of option
					; => skip to end of option
	     (if (and (search-forward ";" (cdr area) t)
		      (let ((context (antlr-syntactic-context)))
			(or (null context) (numberp context))))
		 (setq orig (point))
	       (goto-char orig)))
	(skip-chars-forward " \t")

	(if (looking-at "$\\|//")
	    ;; just comment after point => skip (+ lines w/ same col comment)
	    (let ((same (if (> (match-end 0) (match-beginning 0))
			    (current-column))))
	      (beginning-of-line 2)
	      (or (bolp) (insert "\n"))
	      (when (and same (null area)) ; or (consp area)?
		(while (and (looking-at "[ \t]*\\(//\\)")
			    (goto-char (match-beginning 1))
			    (= (current-column) same))
		  (beginning-of-line 2)
		  (or (bolp) (insert "\n")))))
	  (goto-char orig)
	  (if (null old)
	      (progn (insert "\n") (antlr-indent-line))
	    (unless (eq (char-after (1- (point))) ?\ )
	      (insert " "))
	    (unless (eq (char-after (point)) ?\ )
	      (insert " ")
	      (backward-char))
	    (setq open nil)))))
    (when open
      (beginning-of-line 1)
      (insert "\n")
      (backward-char)
      (antlr-indent-line))))