svn-dev.el

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		       (progn (if (search-forward "\e[0m" nil 'move)
				  (delete-backward-char 4))
			      (point))
		       'face svn-perldoc-overstrike-face))
  (goto-char (point-min))
  (while (search-forward "_\b" nil t)
    (backward-delete-char 2)
    (put-text-property (point) (1+ (point)) 'face svn-perldoc-underline-face))
  (goto-char (point-min))
  (while (search-forward "\b_" nil t)
    (backward-delete-char 2)
    (put-text-property (1- (point)) (point) 'face svn-perldoc-underline-face))
  (goto-char (point-min))
  (while (re-search-forward "\\(.\\)\\(\b\\1\\)+" nil t)
    (replace-match "\\1")
    (put-text-property (1- (point)) (point) 'face svn-perldoc-overstrike-face))
  (goto-char (point-min))
  (while (re-search-forward "o\b\\+\\|\\+\bo" nil t)
    (replace-match "o")
    (put-text-property (1- (point)) (point) 'face 'bold))
  (goto-char (point-min))
  (while (re-search-forward "[-|]\\(\b[-|]\\)+" nil t)
    (replace-match "+")
    (put-text-property (1- (point)) (point) 'face 'bold))
  (svn-perldoc-softhyphen-to-minus)
  (message "Please wait, making up the page...done"))


(defun svn-perldoc-cleanup-buffer ()
  "Remove overstriking and underlining from the current buffer."
  (interactive)
  (message "Please wait, cleaning up the page...")
  (progn
    (goto-char (point-min))
    (while (search-forward "_\b" nil t) (backward-delete-char 2))
    (goto-char (point-min))
    (while (search-forward "\b_" nil t) (backward-delete-char 2))
    (goto-char (point-min))
    (while (re-search-forward "\\(.\\)\\(\b\\1\\)+" nil t) 
      (replace-match "\\1"))
    (goto-char (point-min))
    (while (re-search-forward "\e\\[[0-9]+m" nil t) (replace-match ""))
    (goto-char (point-min))
    (while (re-search-forward "o\b\\+\\|\\+\bo" nil t) (replace-match "o"))
    (goto-char (point-min))
    (while (re-search-forward "" nil t) (replace-match " ")))
  (goto-char (point-min))
  (while (re-search-forward "[-|]\\(\b[-|]\\)+" nil t) (replace-match "+"))
  (svn-perldoc-softhyphen-to-minus)
  (message "Please wait, cleaning up the page...done"))


;; Entry point to svn-perldoc functionality.
(defun svn-perldoc (file)
  "Run perldoc on FILE, display the output in a buffer."
  (interactive "fRun perldoc on file: ")
  (let ((outbuf (get-buffer-create 
                 (format "*%s PerlDoc*" (file-name-nondirectory file))))
        (savepg (getenv "PAGER")))
    (setenv "PAGER" "cat")  ;; for perldoc
    (save-excursion
      (set-buffer outbuf)
      (delete-region (point-min) (point-max))
      (call-process "perldoc" nil outbuf nil (expand-file-name file))
      (svn-perldoc-fontify-buffer)      
      (svn-perldoc-cleanup-buffer)
      ;; Clean out the inevitable leading dead space.
      (goto-char (point-min))
      (re-search-forward "[^ \i\n]")
      (beginning-of-line)
      (delete-region (point-min) (point)))
    (setenv "PAGER" savepg)
    (display-buffer outbuf)))



;;; Help developers write log messages.

;; How to use this: just run `svn-log-message'.  You might want to
;; bind it to a key, for example,
;;
;;   (define-key "\C-cl" 'svn-log-message)
;;
;; The log message will accumulate in a file.  Later, you can use
;; that file when you commit:
;;
;;   $ svn ci -F msg ...

(defun svn-log-path-derive (path)
  "Derive a relative directory path for absolute PATH, for a log entry."
  (save-match-data
    (let ((base (file-name-nondirectory path))
          (chop-spot (string-match
                      "\\(code/\\)\\|\\(src/\\)\\|\\(projects/\\)"
                      path)))
      (if chop-spot
          (progn
            (setq path (substring path (match-end 0)))
            ;; Kluge for Subversion developers.
            (if (string-match "subversion/" path)
                (substring path (+ (match-beginning 0) 11))
              path))
        (string-match (expand-file-name "~/") path)
        (substring path (match-end 0))))))


(defun svn-log-message-file ()
  "Return the name of the appropriate log message accumulation file.
Usually this is just the file `msg' in the current directory, but
certain areas are treated specially, for example, the Subversion
source tree."
  (save-match-data
    (if (string-match "subversion" default-directory)
        (concat (substring default-directory 0 (match-end 0)) "/msg")
      "msg")))


(defun svn-log-message (short-file-names)
  "Add to an in-progress log message, based on context around point.
If prefix arg SHORT-FILE-NAMES is non-nil, then use basenames only in
log messages, otherwise use full paths.  The current defun name is
always used.

If the log message already contains material about this defun, then put
point there, so adding to that material is easy.

Else if the log message already contains material about this file, put
point there, and push onto the kill ring the defun name with log
message dressing around it, plus the raw defun name, so yank and
yank-next are both useful.

Else if there is no material about this defun nor file anywhere in the
log message, then put point at the end of the message and insert a new
entry for file with defun.

See also the function `svn-log-message-file'."
  (interactive "P")
  (let ((this-file (if short-file-names
                       (file-name-nondirectory buffer-file-name)
                     (svn-log-path-derive buffer-file-name)))
        (this-defun (or (add-log-current-defun)
                        (save-excursion
                          (save-match-data
                            (if (eq major-mode 'c-mode)
                                (progn
                                  (c-beginning-of-statement)
                                  (search-forward "(" nil t)
                                  (forward-char -1)
                                  (forward-sexp -1)
                                  (buffer-substring
                                   (point)
                                   (progn (forward-sexp 1) (point)))))))))
        (log-file (svn-log-message-file)))
    (find-file log-file)
    (goto-char (point-min))
    ;; Strip text properties from strings
    (set-text-properties 0 (length this-file) nil this-file)
    (set-text-properties 0 (length this-defun) nil this-defun)
    ;; If log message for defun already in progress, add to it
    (if (and
         this-defun                        ;; we have a defun to work with
         (search-forward this-defun nil t) ;; it's in the log msg already
         (save-excursion                   ;; and it's about the same file
           (save-match-data
             (if (re-search-backward  ; Ick, I want a real filename regexp!
                  "^\\*\\s-+\\([a-zA-Z0-9-_.@=+^$/%!?(){}<>]+\\)" nil t)
                 (string-equal (match-string 1) this-file)
               t))))
        (if (re-search-forward ":" nil t)
            (if (looking-at " ") (forward-char 1)))
      ;; Else no log message for this defun in progress...
      (goto-char (point-min))
      ;; But if log message for file already in progress, add to it.
      (if (search-forward this-file nil t)
          (progn 
            (if this-defun (progn
                             (kill-new (format "(%s): " this-defun))
                             (kill-new this-defun)))
            (search-forward ")" nil t)
            (if (looking-at " ") (forward-char 1)))
        ;; Found neither defun nor its file, so create new entry.
        (goto-char (point-max))
        (if (not (bolp)) (insert "\n"))
        (insert (format "\n* %s (%s): " this-file (or this-defun "")))
        ;; Finally, if no derived defun, put point where the user can
        ;; type it themselves.
        (if (not this-defun) (forward-char -3))))))



;;; Log message helpers.

(defconst svn-log-msg-sep-line
  "------------------------------------------------------------------------"
  "The line of dashes that separates log messages in 'svn log' output.")

(defconst svn-log-msg-boundary-regexp
  (concat "^" svn-log-msg-sep-line "\n" "r[0-9]+ | ")
  "Regular expression matching the start of a log msg.  The start is
the beginning of the separator line, not the rev/author/date line that
follows the separator line.")

(defun svn-narrow-to-log-msg ()
  "Narrow to the current Subversion log message.
This meant to be used while browsing the output of 'svn log'.
If point is not in such output, error."
  (interactive)
  (let ((start nil) (end nil))
    (save-excursion
      (re-search-backward svn-log-msg-boundary-regexp)
      (forward-line 1)
      (setq start (point))
      (end-of-line)
      (re-search-backward "| \\([0-9]+\\) ")
      (let ((num (match-string 1)))
        (re-search-forward "^\n")
        (forward-line (string-to-number num)))
      (setq end (point)))
    (narrow-to-region start end)))



(message "loaded svn-dev.el")