;;; add-log.el --- change log maintenance commands for Emacs
-;; Copyright (C) 1985-1991 Free Software Foundation, Inc.
+;; Copyright (C) 1985, 1986, 1988, 1993 Free Software Foundation, Inc.
+
+;; Keywords: maint
;; This file is part of GNU Emacs.
;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 1, or (at your option)
+;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; along with GNU Emacs; see the file COPYING. If not, write to
;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+;;; Commentary:
+
+;; This facility is documented in the Emacs Manual.
+
+;;; Code:
;;;###autoload
(defvar change-log-default-name nil
(read-file-name (format "Log file (default %s): " default)
nil default))))
+;;;###autoload
+(defun find-change-log (&optional file-name)
+ "Find a change log file for \\[add-change-log-entry] and return the name.
+Optional arg FILE-NAME is a name to try first.
+If FILE-NAME is nil, use the value of `change-log-default-name' if non-nil.
+Failing that, use \"ChangeLog\" in the current directory.
+If the file does not exist in the named directory, successive parent
+directories are tried.
+
+Once a file is found, `change-log-default-name' is set locally in the
+current buffer to the complete file name."
+ (or file-name
+ (setq file-name (or change-log-default-name
+ ;; Chase links in the source file
+ ;; and use the change log in the dir where it points.
+ (and buffer-file-name
+ (file-name-directory
+ (file-chase-links buffer-file-name)))
+ default-directory)))
+ (if (and (eq file-name change-log-default-name)
+ (assq 'change-log-default-name (buffer-local-variables)))
+ ;; Don't do the searching if we already have a buffer-local value.
+ file-name
+
+ (if (file-directory-p file-name)
+ (setq file-name (expand-file-name (change-log-name) file-name)))
+ ;; Chase links before visiting the file.
+ ;; This makes it easier to use a single change log file
+ ;; for several related directories.
+ (setq file-name (file-chase-links file-name))
+ (setq file-name (expand-file-name file-name))
+ ;; Move up in the dir hierarchy till we find a change log file.
+ (let ((file1 file-name)
+ parent-dir)
+ (while (and (not (or (get-file-buffer file1) (file-exists-p file1)))
+ (progn (setq parent-dir
+ (file-name-directory
+ (directory-file-name
+ (file-name-directory file1))))
+ ;; Give up if we are already at the root dir.
+ (not (string= (file-name-directory file1)
+ parent-dir))))
+ ;; Move up to the parent dir and try again.
+ (setq file1 (expand-file-name (change-log-name) parent-dir)))
+ ;; If we found a change log in a parent, use that.
+ (if (or (get-file-buffer file1) (file-exists-p file1))
+ (setq file-name file1)))
+ ;; Make a local variable in this buffer so we needn't search again.
+ (set (make-local-variable 'change-log-default-name) file-name)
+ file-name))
+
;;;###autoload
(defun add-change-log-entry (&optional whoami file-name other-window)
"Find change log file and add an entry for today.
Third arg OTHER-WINDOW non-nil means visit in other window."
(interactive (list current-prefix-arg
(prompt-for-change-log-name)))
- (let* ((default (if (eq system-type 'vax-vms)
- "$CHANGE_LOG$.TXT"
- "ChangeLog"))
- (full-name (if whoami
+ (let* ((full-name (if whoami
(read-input "Full name: " (user-full-name))
(user-full-name)))
;; Note that some sites have room and phone number fields in
(read-input "Site name: " (system-name))
(system-name)))
(defun (add-log-current-defun))
- (entry (and buffer-file-name
- (file-name-nondirectory buffer-file-name)))
- entry-position entry-boundary empty-entry)
- ;; Never want to add a change log entry for the ChangeLog buffer itself:
- (if (equal default entry)
- (setq entry nil
- formatted-revision nil
- defun nil))
- (or file-name
- (setq file-name (or change-log-default-name
- default-directory)))
- (if (file-directory-p file-name)
- (setq file-name (concat (file-name-as-directory file-name)
- (change-log-name))))
- (set (make-local-variable 'change-log-default-name) file-name)
+ paragraph-end entry)
+
+ (setq file-name (find-change-log file-name))
+
+ ;; Set ENTRY to the file name to use in the new entry.
+ (and buffer-file-name
+ ;; Never want to add a change log entry for the ChangeLog file itself.
+ (not (string= buffer-file-name file-name))
+ (setq entry (if (string-match
+ (concat "^" (regexp-quote (file-name-directory
+ file-name)))
+ buffer-file-name)
+ (substring buffer-file-name (match-end 0))
+ (file-name-nondirectory buffer-file-name))))
+
(if (and other-window (not (equal file-name buffer-file-name)))
(find-file-other-window file-name)
(find-file file-name))
(undo-boundary)
(goto-char (point-min))
- (if (not (and (looking-at (substring (current-time-string) 0 10))
- (looking-at (concat ".* " full-name " (" login-name "@"))))
- (progn (insert (current-time-string)
- " " full-name
- " (" login-name
- "@" site-name ")\n\n")))
+ (if (looking-at (concat (regexp-quote (substring (current-time-string)
+ 0 10))
+ ".* " (regexp-quote full-name)
+ " (" (regexp-quote login-name) "@"))
+ (forward-line 1)
+ (insert (current-time-string)
+ " " full-name
+ " (" login-name "@" site-name ")\n\n"))
+
+ ;; Search only within the first paragraph.
+ (if (looking-at "\n*[^\n* \t]")
+ (skip-chars-forward "\n")
+ (forward-paragraph 1))
+ (setq paragraph-end (point))
(goto-char (point-min))
- (setq empty-entry
- (and (search-forward "\n\t* \n" nil t)
- (1- (point))))
- (if (and entry
- (not empty-entry))
- ;; Look for today's entry for same file
- ;; If there is an empty entry (just a `*'), take the hint and
- ;; use it. This is so that C-x a from the ChangeLog buffer
- ;; itself can be used to force the next entry to be added at
- ;; the beginning, even if there are today's entries for the
- ;; same file (but perhaps different revisions).
- (setq entry-boundary (save-excursion
- (and (re-search-forward "\n[A-Z]" nil t)
- (point)))
- entry-position (save-excursion
- (and (re-search-forward
- (concat
- (regexp-quote (concat "* " entry))
- ;; don't accept `foo.bar' when
- ;; looking for `foo':
- "[ \n\t,]")
- entry-boundary
- t)
- (1- (match-end 0))))))
- (cond (entry-position
- ;; Move to existing entry for same file.
- (goto-char entry-position)
- (search-forward "\n\n")
- (forward-line -1))
- (empty-entry
- ;; Put this file name into existing empty entry.
- (goto-char empty-entry)
- (insert (or entry "")))
+
+ ;; Now insert the new line for this entry.
+ (cond ((re-search-forward "^\\s *\\*\\s *$" paragraph-end t)
+ ;; Put this file name into the existing empty entry.
+ (if entry
+ (insert entry)))
+ ((and (re-search-forward
+ (concat (regexp-quote (concat "* " entry))
+ ;; Don't accept `foo.bar' when
+ ;; looking for `foo':
+ "\\(\\s \\|[(),:]\\)")
+ paragraph-end t))
+ ;; Add to the existing entry for the same file.
+ (re-search-forward "^\\s *$\\|^\\s \\*")
+ (beginning-of-line)
+ (while (and (not (eobp)) (looking-at "^\\s *$"))
+ (delete-region (point) (save-excursion (forward-line 1) (point))))
+ (insert "\n\n")
+ (forward-line -2)
+ (indent-relative-maybe))
(t
- ;; Make a new entry
- (forward-line 1)
- (while (looking-at "\\sW")
- (forward-line 1))
- (delete-region (point)
- (progn
- (skip-chars-backward "\n")
- (point)))
- (open-line 3)
- (forward-line 2)
- (indent-to left-margin)
- (insert "* " (or entry ""))))
+ ;; Make a new entry.
+ (forward-line 1)
+ (while (looking-at "\\sW")
+ (forward-line 1))
+ (while (and (not (eobp)) (looking-at "^\\s *$"))
+ (delete-region (point) (save-excursion (forward-line 1) (point))))
+ (insert "\n\n\n")
+ (forward-line -2)
+ (indent-to left-margin)
+ (insert "* " (or entry ""))))
+ ;; Now insert the function name, if we have one.
;; Point is at the entry for this file,
;; either at the end of the line or at the first blank line.
(if defun
(progn
- ;; Make it easy to get rid of the defun name.
+ ;; Make it easy to get rid of the function name.
(undo-boundary)
- (insert "(" defun "): ")))))
-
-;;;###autoload
-(define-key ctl-x-4-map "a" 'add-change-log-entry-other-window)
+ (insert (if (save-excursion
+ (beginning-of-line 1)
+ (looking-at "\\s *$"))
+ ""
+ " ")
+ "(" defun "): "))
+ ;; No function name, so put in a colon unless we have just a star.
+ (if (not (save-excursion
+ (beginning-of-line 1)
+ (looking-at "\\s *\\(\\*\\s *\\)?$")))
+ (insert ": ")))))
;;;###autoload
(defun add-change-log-entry-other-window (&optional whoami file-name)
(list current-prefix-arg
(prompt-for-change-log-name))))
(add-change-log-entry whoami file-name t))
+;;;###autoload (define-key ctl-x-4-map "a" 'add-change-log-entry-other-window)
+;;;###autoload
(defun change-log-mode ()
+ "Major mode for editing change logs; like Indented Text Mode.
+Prevents numeric backups and sets `left-margin' to 8 and `fill-column' to 74.
+New log entries are usually made with \\[add-change-log-entry] or \\[add-change-log-entry-other-window].
+Each entry behaves as a paragraph, and the entries for one day as a page.
+Runs `change-log-mode-hook'."
(interactive)
(kill-all-local-variables)
(indented-text-mode)
- (setq major-mode 'change-log-mode)
- (setq mode-name "Change Log")
+ (setq major-mode 'change-log-mode
+ mode-name "Change Log"
+ left-margin 8
+ fill-column 74)
;; Let each entry behave as one paragraph:
- (set (make-local-variable 'paragraph-start) "^$\\|^^L")
- (set (make-local-variable 'paragraph-separate) "^$\\|^^L")
+ (set (make-local-variable 'paragraph-start) "^\\s *$\\|^^L")
+ (set (make-local-variable 'paragraph-separate) "^\\s *$\\|^^L\\|^\\sw")
;; Let all entries for one day behave as one page.
- ;; Note that a page boundary is also a paragraph boundary.
- ;; Unfortunately the date line of a page actually belongs to
- ;; the next day, but I don't see how to avoid that since
- ;; page moving cmds go to the end of the match, and Emacs
- ;; regexps don't have a context feature.
- (set (make-local-variable 'page-delimiter) "^[A-Z][a-z][a-z] .*\n\\|^\f")
+ ;; Match null string on the date-line so that the date-line
+ ;; is grouped with what follows.
+ (set (make-local-variable 'page-delimiter) "^\\<\\|^\f")
+ (set (make-local-variable 'version-control) 'never)
+ (set (make-local-variable 'adaptive-fill-regexp) "\\s *")
(run-hooks 'change-log-mode-hook))
(defvar add-log-current-defun-header-regexp
- "^\\([A-Z][A-Z_ ]+\\|[a-z_---A-Z]+\\)[ \t]*[:=]"
+ "^\\([A-Z][A-Z_ ]*[A-Z_]\\|[a-z_---A-Z]+\\)[ \t]*[:=]"
"*Heuristic regexp used by `add-log-current-defun' for unknown major modes.")
(defun add-log-current-defun ()
"Return name of function definition point is in, or nil.
-Understands Lisp, LaTeX (\"functions\" are chapters, sections, ...),
-Texinfo (@node titles), and C.
+Understands C, Lisp, LaTeX (\"functions\" are chapters, sections, ...),
+Texinfo (@node titles), and Fortran.
Other modes are handled by a heuristic that looks in the 10K before
point for uppercase headings starting in the first column or
`add-log-current-defun-header-regexp'.
Has a preference of looking backwards."
- (save-excursion
- (cond ((memq major-mode '(emacs-lisp-mode lisp-mode))
- (beginning-of-defun)
- (forward-word 1)
- (skip-chars-forward " ")
- (buffer-substring (point)
- (progn (forward-sexp 1) (point))))
- ((eq major-mode 'c-mode)
- ;; must be inside function body for this to work
- (beginning-of-defun)
- (forward-line -1)
- (while (looking-at "[ \t\n]") ; skip typedefs of arglist
- (forward-line -1))
- (down-list 1) ; into arglist
- (backward-up-list 1)
- (skip-chars-backward " \t")
- (buffer-substring (point)
- (progn (backward-sexp 1)
- (point))))
- ((memq major-mode
- '(TeX-mode plain-TeX-mode LaTeX-mode;; tex-mode.el
- plain-tex-mode latex-mode;; cmutex.el
- ))
- (if (re-search-backward
- "\\\\\\(sub\\)*\\(section\\|paragraph\\|chapter\\)" nil t)
- (progn
- (goto-char (match-beginning 0))
- (buffer-substring (1+ (point));; without initial backslash
+ (condition-case nil
+ (save-excursion
+ (let ((location (point)))
+ (cond ((memq major-mode '(emacs-lisp-mode lisp-mode scheme-mode))
+ ;; If we are now precisely a the beginning of a defun,
+ ;; make sure beginning-of-defun finds that one
+ ;; rather than the previous one.
+ (or (eobp) (forward-char 1))
+ (beginning-of-defun)
+ ;; Make sure we are really inside the defun found, not after it.
+ (if (and (progn (end-of-defun)
+ (< location (point)))
+ (progn (forward-sexp -1)
+ (>= location (point))))
+ (progn
+ (if (looking-at "\\s(")
+ (forward-char 1))
+ (forward-sexp 1)
+ (skip-chars-forward " ")
+ (buffer-substring (point)
+ (progn (forward-sexp 1) (point))))))
+ ((and (memq major-mode '(c-mode 'c++-mode))
+ (save-excursion (beginning-of-line)
+ ;; Use eq instead of = here to avoid
+ ;; error when at bob and char-after
+ ;; returns nil.
+ (while (eq (char-after (- (point) 2)) ?\\)
+ (forward-line -1))
+ (looking-at "[ \t]*#[ \t]*define[ \t]")))
+ ;; Handle a C macro definition.
+ (beginning-of-line)
+ (while (eq (char-after (- (point) 2)) ?\\) ;not =; note above
+ (forward-line -1))
+ (search-forward "define")
+ (skip-chars-forward " \t")
+ (buffer-substring (point)
+ (progn (forward-sexp 1) (point))))
+ ((memq major-mode '(c-mode 'c++-mode))
+ (beginning-of-line)
+ ;; See if we are in the beginning part of a function,
+ ;; before the open brace. If so, advance forward.
+ (while (not (looking-at "{\\|\\(\\s *$\\)"))
+ (forward-line 1))
+ (or (eobp)
+ (forward-char 1))
+ (beginning-of-defun)
+ (if (progn (end-of-defun)
+ (< location (point)))
+ (progn
+ (backward-sexp 1)
+ (let (beg tem)
+
+ (forward-line -1)
+ ;; Skip back over typedefs of arglist.
+ (while (and (not (bobp))
+ (looking-at "[ \t\n]"))
+ (forward-line -1))
+ ;; See if this is using the DEFUN macro used in Emacs,
+ ;; or the DEFUN macro used by the C library.
+ (if (condition-case nil
+ (and (save-excursion
+ (forward-line 1)
+ (backward-sexp 1)
+ (beginning-of-line)
+ (setq tem (point))
+ (looking-at "DEFUN\\b"))
+ (>= location tem))
+ (error nil))
+ (progn
+ (goto-char tem)
+ (down-list 1)
+ (if (= (char-after (point)) ?\")
(progn
- (end-of-line)
- (point))))))
- ((eq major-mode 'texinfo-mode)
- (if (re-search-backward "^@node[ \t]+\\([^,]+\\)," nil t)
- (buffer-substring (match-beginning 1)
- (match-end 1))))
- (t
- ;; If all else fails, try heuristics
- (let (case-fold-search)
- (if (re-search-backward add-log-current-defun-header-regexp
- (- (point) 10000)
+ (forward-sexp 1)
+ (skip-chars-forward " ,")))
+ (buffer-substring (point)
+ (progn (forward-sexp 1) (point))))
+ ;; Ordinary C function syntax.
+ (setq beg (point))
+ (if (condition-case nil
+ ;; Protect against "Unbalanced parens" error.
+ (progn
+ (down-list 1) ; into arglist
+ (backward-up-list 1)
+ (skip-chars-backward " \t")
t)
- (buffer-substring (match-beginning 1)
- (match-end 1))))))))
+ (error nil))
+ ;; Verify initial pos was after
+ ;; real start of function.
+ (if (and (save-excursion
+ (goto-char beg)
+ ;; For this purpose, include the line
+ ;; that has the decl keywords. This
+ ;; may also include some of the
+ ;; comments before the function.
+ (while (and (not (bobp))
+ (save-excursion
+ (forward-line -1)
+ (looking-at "[^\n\f]")))
+ (forward-line -1))
+ (>= location (point)))
+ ;; Consistency check: going down and up
+ ;; shouldn't take us back before BEG.
+ (> (point) beg))
+ (buffer-substring (point)
+ (progn (backward-sexp 1)
+ (point))))))))))
+ ((memq major-mode
+ '(TeX-mode plain-TeX-mode LaTeX-mode;; tex-mode.el
+ plain-tex-mode latex-mode;; cmutex.el
+ ))
+ (if (re-search-backward
+ "\\\\\\(sub\\)*\\(section\\|paragraph\\|chapter\\)" nil t)
+ (progn
+ (goto-char (match-beginning 0))
+ (buffer-substring (1+ (point));; without initial backslash
+ (progn
+ (end-of-line)
+ (point))))))
+ ((eq major-mode 'texinfo-mode)
+ (if (re-search-backward "^@node[ \t]+\\([^,]+\\)," nil t)
+ (buffer-substring (match-beginning 1)
+ (match-end 1))))
+ ((eq major-mode 'fortran-mode)
+ ;; must be inside function body for this to work
+ (beginning-of-fortran-subprogram)
+ (let ((case-fold-search t)) ; case-insensitive
+ ;; search for fortran subprogram start
+ (if (re-search-forward
+ "^[ \t]*\\(program\\|subroutine\\|function\
+\\|[ \ta-z0-9*]*[ \t]+function\\)"
+ nil t)
+ (progn
+ ;; move to EOL or before first left paren
+ (if (re-search-forward "[(\n]" nil t)
+ (progn (forward-char -1)
+ (skip-chars-backward " \t"))
+ (end-of-line))
+ ;; Use the name preceding that.
+ (buffer-substring (point)
+ (progn (forward-sexp -1)
+ (point)))))))
+ (t
+ ;; If all else fails, try heuristics
+ (let (case-fold-search)
+ (end-of-line)
+ (if (re-search-backward add-log-current-defun-header-regexp
+ (- (point) 10000)
+ t)
+ (buffer-substring (match-beginning 1)
+ (match-end 1))))))))
+ (error nil)))
+
+
+(provide 'add-log)
;;; add-log.el ends here