(defun nagios-indent-line(&optional flag)
"Indents a line, taking nesting into account."
+ (interactive)
(nagios-indent-to (nagios-calculate-indent))
)
+(defun beginning-of-line-pos()
+ ;; Return the point position corresponding to the beginning
+ ;; of the current line.
+ (save-excursion
+ (beginning-of-line)
+ (point)
+ )
+)
-(defun nagios-indent-to(indent-column)
- "Indent the current line to column indent-column."
- (setq pos (point))
- (beginning-of-line)
- (setq bol (point))
- (setq pos-offset (- pos bol))
-
- (setq first-char-offset
- (skip-chars-forward " \t"))
-
- (setq first-char-pos
- (+ bol first-char-offset))
-
- (delete-region bol first-char-pos)
-
- (beginning-of-line)
+(defun end-of-line-pos()
+ ;; Return the point position corresponding to the end
+ ;; of the current line.
+ (save-excursion
+ (end-of-line)
+ (point)
+ )
+)
- (setq pos-change (- indent-column first-char-offset))
- (setq pos-offset (+ pos-offset pos-change))
+(defun point-offset()
+ ;; How far are we from the beginning of the line?
+ (- (point) (beginning-of-line-pos))
+)
- (if (<= pos-offset indent-column)
- (setq pos-offset indent-column))
-
- (while (< 0 indent-column)
- (insert " ")
- (setq indent-column (- indent-column 1)))
+(defun first-char-offset()
+ ;; How far is the first character on this line
+ ;; from the beginning of the line?
+ (save-excursion
+ (+ (pos-offset) (skip-chars-forward " \t"))
+ )
+)
- (goto-char (+ bol pos-offset))
+(defun first-char-pos()
+ ;; What's the position of the first character on this line?
+ (+ (beginning-of-line-pos) (first-char-offset))
+)
+(defun nagios-indent-to(indent-column)
+ "Indent the current line to column indent-column."
+ ;; Store the point in orig-pos.
+ (let ((orig-point (point)))
+
+ ;; And store the offset of the first character (with respect to the
+ ;; beginning of the line) in orig-first-char-offset.
+ (let ((orig-first-char-offset (first-char-offset)))
+
+ ;; Delete any leading whitespace, and move the point to the
+ ;; beginning of the line.
+ (delete-region (beginning-of-line-pos) (first-char-pos))
+ (beginning-of-line)
+
+ ;; Now insert indent-column spaces.
+ (while (< 0 indent-column)
+ (insert " ")
+ (setq indent-column (- indent-column 1)))
+
+ ;; The text on the current line just moved left/right some amount;
+ ;; call it text-delta. We want to move the point that same distance.
+ (let ((text-delta (- (first-char-offset) orig-first-char-offset)))
+ (goto-char (+ orig-point text-delta))
+ )
+ )
)
+)
)
+(defun brace-on-line()
+ ;; Is there a curly brace on this line?
+ (save-excursion
+ (re-search-forward "[{}]" (end-of-line-pos) t)
+ )
+)
(defun nagios-calculate-indent()
"Calculate the level of indentation."
;; We're either inside a block, or we aren't.
- (setq indent 0)
-
- (if (nagios-in-block)
- (setq indent nagios-indent-level))
-
- (setq pos (point))
- (end-of-line)
- (setq eol (point))
- (beginning-of-line)
- (setq bol (point))
-
- ;; Set the indentation level to 0 if we find either brace on this
- ;; line.
- (if (re-search-forward "[{}]" eol t)
- (setq indent 0))
-
- (goto-char pos)
+ ;; Initialize the indent variable to either nagios-indent-level
+ ;; or 0 depending on whether or not we're in a block.
+ (let ((indent (if (nagios-in-block)
+ (setq indent nagios-indent-level)
+ 0)
+ )
+ )
- indent
- )
+ ;; Set the indentation level to 0 if we find either brace on this
+ ;; line.
+ (if (brace-on-line)
+ (setq indent 0)
+ )
+ indent
+ )
+)
;; Keymaps