;;; add-log.el --- change log maintenance commands for Emacs ;; Copyright (C) 1985, 1986, 1988, 1993, 1994, 1997, 1998, 2000, 2001, ;; 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. ;; Maintainer: FSF ;; Keywords: tools ;; 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 2, or (at your option) ;; any later version. ;; GNU Emacs is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY; without even the implied warranty of ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;; GNU General Public License for more details. ;; You should have received a copy of the GNU General Public License ;; along with GNU Emacs; see the file COPYING. If not, write to the ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, ;; Boston, MA 02110-1301, USA. ;;; Commentary: ;; This facility is documented in the Emacs Manual. ;;; Code: (eval-when-compile (require 'timezone)) (defgroup change-log nil "Change log maintenance." :group 'tools :link '(custom-manual "(emacs)Change Log") :prefix "change-log-" :prefix "add-log-") (defcustom change-log-default-name nil "*Name of a change log file for \\[add-change-log-entry]." :type '(choice (const :tag "default" nil) string) :group 'change-log) (put 'change-log-default-name 'safe-local-variable 'string-or-null-p) (defcustom change-log-mode-hook nil "Normal hook run by `change-log-mode'." :type 'hook :group 'change-log) ;; Many modes set this variable, so avoid warnings. ;;;###autoload (defcustom add-log-current-defun-function nil "*If non-nil, function to guess name of surrounding function. It is used by `add-log-current-defun' in preference to built-in rules. Returns function's name as a string, or nil if outside a function." :type '(choice (const nil) function) :group 'change-log) ;;;###autoload (defcustom add-log-full-name nil "*Full name of user, for inclusion in ChangeLog daily headers. This defaults to the value returned by the function `user-full-name'." :type '(choice (const :tag "Default" nil) string) :group 'change-log) ;;;###autoload (defcustom add-log-mailing-address nil "Email addresses of user, for inclusion in ChangeLog headers. This defaults to the value of `user-mail-address'. In addition to being a simple string, this value can also be a list. All elements will be recognized as referring to the same user; when creating a new ChangeLog entry, one element will be chosen at random." :type '(choice (const :tag "Default" nil) (string :tag "String") (repeat :tag "List of Strings" string)) :group 'change-log) (defcustom add-log-time-format 'add-log-iso8601-time-string "Function that defines the time format. For example, `add-log-iso8601-time-string', which gives the date in international ISO 8601 format, and `current-time-string' are two valid values." :type '(radio (const :tag "International ISO 8601 format" add-log-iso8601-time-string) (const :tag "Old format, as returned by `current-time-string'" current-time-string) (function :tag "Other")) :group 'change-log) (defcustom add-log-keep-changes-together nil "If non-nil, normally keep day's log entries for one file together. Log entries for a given file made with \\[add-change-log-entry] or \\[add-change-log-entry-other-window] will only be added to others \ for that file made today if this variable is non-nil or that file comes first in today's entries. Otherwise another entry for that file will be started. An original log: * foo (...): ... * bar (...): change 1 in the latter case, \\[add-change-log-entry-other-window] in a \ buffer visiting `bar', yields: * bar (...): -!- * foo (...): ... * bar (...): change 1 and in the former: * foo (...): ... * bar (...): change 1 (...): -!- The NEW-ENTRY arg to `add-change-log-entry' can override the effect of this variable." :version "20.3" :type 'boolean :group 'change-log) (defcustom add-log-always-start-new-record nil "If non-nil, `add-change-log-entry' will always start a new record." :version "22.1" :type 'boolean :group 'change-log) (defcustom add-log-buffer-file-name-function nil "If non-nil, function to call to identify the full filename of a buffer. This function is called with no argument. If this is nil, the default is to use `buffer-file-name'." :type '(choice (const nil) function) :group 'change-log) (defcustom add-log-file-name-function nil "If non-nil, function to call to identify the filename for a ChangeLog entry. This function is called with one argument, the value of variable `buffer-file-name' in that buffer. If this is nil, the default is to use the file's name relative to the directory of the change log file." :type '(choice (const nil) function) :group 'change-log) (defcustom change-log-version-info-enabled nil "*If non-nil, enable recording version numbers with the changes." :version "21.1" :type 'boolean :group 'change-log) (defcustom change-log-version-number-regexp-list (let ((re "\\([0-9]+\.[0-9.]+\\)")) (list ;; (defconst ad-version "2.15" (concat "^(def[^ \t\n]+[ \t]+[^ \t\n][ \t]\"" re) ;; Revision: pcl-cvs.el,v 1.72 1999/09/05 20:21:54 monnier Exp (concat "^;+ *Revision: +[^ \t\n]+[ \t]+" re))) "*List of regexps to search for version number. The version number must be in group 1. Note: The search is conducted only within 10%, at the beginning of the file." :version "21.1" :type '(repeat regexp) :group 'change-log) (defface change-log-date '((t (:inherit font-lock-string-face))) "Face used to highlight dates in date lines." :version "21.1" :group 'change-log) ;; backward-compatibility alias (put 'change-log-date-face 'face-alias 'change-log-date) (defface change-log-name '((t (:inherit font-lock-constant-face))) "Face for highlighting author names." :version "21.1" :group 'change-log) ;; backward-compatibility alias (put 'change-log-name-face 'face-alias 'change-log-name) (defface change-log-email '((t (:inherit font-lock-variable-name-face))) "Face for highlighting author email addresses." :version "21.1" :group 'change-log) ;; backward-compatibility alias (put 'change-log-email-face 'face-alias 'change-log-email) (defface change-log-file '((t (:inherit font-lock-function-name-face))) "Face for highlighting file names." :version "21.1" :group 'change-log) ;; backward-compatibility alias (put 'change-log-file-face 'face-alias 'change-log-file) (defface change-log-list '((t (:inherit font-lock-keyword-face))) "Face for highlighting parenthesized lists of functions or variables." :version "21.1" :group 'change-log) ;; backward-compatibility alias (put 'change-log-list-face 'face-alias 'change-log-list) (defface change-log-conditionals '((t (:inherit font-lock-variable-name-face))) "Face for highlighting conditionals of the form `[...]'." :version "21.1" :group 'change-log) ;; backward-compatibility alias (put 'change-log-conditionals-face 'face-alias 'change-log-conditionals) (defface change-log-function '((t (:inherit font-lock-variable-name-face))) "Face for highlighting items of the form `<....>'." :version "21.1" :group 'change-log) ;; backward-compatibility alias (put 'change-log-function-face 'face-alias 'change-log-function) (defface change-log-acknowledgement '((t (:inherit font-lock-comment-face))) "Face for highlighting acknowledgments." :version "21.1" :group 'change-log) ;; backward-compatibility alias (put 'change-log-acknowledgement-face 'face-alias 'change-log-acknowledgement) (defvar change-log-font-lock-keywords '(;; ;; Date lines, new (2000-01-01) and old (Sat Jan 1 00:00:00 2000) styles. ;; Fixme: this regepx is just an approximate one and may match ;; wrongly with a non-date line existing as a random note. In ;; addition, using any kind of fixed setting like this doesn't ;; work if a user customizes add-log-time-format. ("^[0-9-]+ +\\|^\\(Sun\\|Mon\\|Tue\\|Wed\\|Thu\\|Fri\\|Sat\\) [A-z][a-z][a-z] [0-9:+ ]+" (0 'change-log-date-face) ;; Name and e-mail; some people put e-mail in parens, not angles. ("\\([^<(]+?\\)[ \t]*[(<]\\([A-Za-z0-9_.+-]+@[A-Za-z0-9_.-]+\\)[>)]" nil nil (1 'change-log-name) (2 'change-log-email))) ;; ;; File names. ("^\\( +\\|\t\\)\\* \\([^ ,:([\n]+\\)" (2 'change-log-file) ;; Possibly further names in a list: ("\\=, \\([^ ,:([\n]+\\)" nil nil (1 'change-log-file)) ;; Possibly a parenthesized list of names: ("\\= (\\([^(),\n]+\\|(\\(setf\\|SETF\\) [^() ,\n]+)\\)" nil nil (1 'change-log-list)) ("\\=, *\\([^(),\n]+\\|(\\(setf\\|SETF\\) [^() ,\n]+)\\)" nil nil (1 'change-log-list))) ;; ;; Function or variable names. ("^\\( +\\|\t\\)(\\([^(),\n]+\\|(\\(setf\\|SETF\\) [^() ,\n]+)\\)" (2 'change-log-list) ("\\=, *\\([^(),\n]+\\|(\\(setf\\|SETF\\) [^() ,\n]+)\\)" nil nil (1 'change-log-list))) ;; ;; Conditionals. ("\\[!?\\([^]\n]+\\)\\]\\(:\\| (\\)" (1 'change-log-conditionals)) ;; ;; Function of change. ("<\\([^>\n]+\\)>\\(:\\| (\\)" (1 'change-log-function)) ;; ;; Acknowledgements. ;; Don't include plain "From" because that is vague; ;; we want to encourage people to say something more specific. ;; Note that the FSF does not use "Patches by"; our convention ;; is to put the name of the author of the changes at the top ;; of the change log entry. ("\\(^\\( +\\|\t\\)\\| \\)\\(Patch\\(es\\)? by\\|Report\\(ed by\\| from\\)\\|Suggest\\(ed by\\|ion from\\)\\)" 3 'change-log-acknowledgement)) "Additional expressions to highlight in Change Log mode.") (defvar change-log-mode-map (let ((map (make-sparse-keymap))) (define-key map [?\C-c ?\C-p] 'add-log-edit-prev-comment) (define-key map [?\C-c ?\C-n] 'add-log-edit-next-comment) map) "Keymap for Change Log major mode.") ;; It used to be called change-log-time-zone-rule but really should be ;; called add-log-time-zone-rule since it's only used from add-log-* code. (defvaralias 'change-log-time-zone-rule 'add-log-time-zone-rule) (defvar add-log-time-zone-rule nil "Time zone used for calculating change log time stamps. It takes the same format as the TZ argument of `set-time-zone-rule'. If nil, use local time. If t, use universal time.") (put 'add-log-time-zone-rule 'safe-local-variable '(lambda (x) (or (booleanp x) (stringp x)))) (defun add-log-iso8601-time-zone (&optional time) (let* ((utc-offset (or (car (current-time-zone time)) 0)) (sign (if (< utc-offset 0) ?- ?+)) (sec (abs utc-offset)) (ss (% sec 60)) (min (/ sec 60)) (mm (% min 60)) (hh (/ min 60))) (format (cond ((not (zerop ss)) "%c%02d:%02d:%02d") ((not (zerop mm)) "%c%02d:%02d") (t "%c%02d")) sign hh mm ss))) (defvar add-log-iso8601-with-time-zone nil) (defun add-log-iso8601-time-string () (let ((time (format-time-string "%Y-%m-%d" nil (eq t add-log-time-zone-rule)))) (if add-log-iso8601-with-time-zone (concat time " " (add-log-iso8601-time-zone)) time))) (defun change-log-name () "Return (system-dependent) default name for a change log file." (or change-log-default-name (if (eq system-type 'vax-vms) "$CHANGE_LOG$.TXT" "ChangeLog"))) (defun add-log-edit-prev-comment (arg) "Cycle backward through Log-Edit mode comment history. With a numeric prefix ARG, go back ARG comments." (interactive "*p") (save-restriction (narrow-to-region (point) (if (memq last-command '(add-log-edit-prev-comment add-log-edit-next-comment)) (mark) (point))) (when (fboundp 'log-edit-previous-comment) (log-edit-previous-comment arg) (indent-region (point-min) (point-max)) (goto-char (point-min)) (unless (save-restriction (widen) (bolp)) (delete-region (point) (progn (skip-chars-forward " \t\n") (point)))) (set-mark (point-min)) (goto-char (point-max)) (delete-region (point) (progn (skip-chars-backward " \t\n") (point)))))) (defun add-log-edit-next-comment (arg) "Cycle forward through Log-Edit mode comment history. With a numeric prefix ARG, go back ARG comments." (interactive "*p") (add-log-edit-prev-comment (- arg))) ;;;###autoload (defun prompt-for-change-log-name () "Prompt for a change log name." (let* ((default (change-log-name)) (name (expand-file-name (read-file-name (format "Log file (default %s): " default) nil default)))) ;; Handle something that is syntactically a directory name. ;; Look for ChangeLog or whatever in that directory. (if (string= (file-name-nondirectory name) "") (expand-file-name (file-name-nondirectory default) name) ;; Handle specifying a file that is a directory. (if (file-directory-p name) (expand-file-name (file-name-nondirectory default) (file-name-as-directory name)) name)))) (defun change-log-version-number-search () "Return version number of current buffer's file. This is the value returned by `vc-workfile-version' or, if that is nil, by matching `change-log-version-number-regexp-list'." (let* ((size (buffer-size)) (limit ;; The version number can be anywhere in the file, but ;; restrict search to the file beginning: 10% should be ;; enough to prevent some mishits. ;; ;; Apply percentage only if buffer size is bigger than ;; approx 100 lines. (if (> size (* 100 80)) (+ (point) (/ size 10))))) (or (and buffer-file-name (vc-workfile-version buffer-file-name)) (save-restriction (widen) (let ((regexps change-log-version-number-regexp-list) version) (while regexps (save-excursion (goto-char (point-min)) (when (re-search-forward (pop regexps) limit t) (setq version (match-string 1) regexps nil)))) version))))) ;;;###autoload (defun find-change-log (&optional file-name buffer-file) "Find a change log file for \\[add-change-log-entry] and return the name. Optional arg FILE-NAME specifies the file to use. If FILE-NAME is nil, use the value of `change-log-default-name'. If `change-log-default-name' is nil, behave as though it were 'ChangeLog' \(or whatever we use on this operating system). If `change-log-default-name' contains a leading directory component, then simply find it in the current directory. Otherwise, search in the current directory and its successive parents for a file so named. Once a file is found, `change-log-default-name' is set locally in the current buffer to the complete file name. Optional arg BUFFER-FILE overrides `buffer-file-name'." ;; If user specified a file name or if this buffer knows which one to use, ;; just use that. (or file-name (setq file-name (and change-log-default-name (file-name-directory change-log-default-name) change-log-default-name)) (progn ;; Chase links in the source file ;; and use the change log in the dir where it points. (setq file-name (or (and (or buffer-file buffer-file-name) (file-name-directory (file-chase-links (or buffer-file buffer-file-name)))) default-directory)) (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 (file-name-nondirectory (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) (defun add-log-file-name (buffer-file log-file) ;; Never want to add a change log entry for the ChangeLog file itself. (unless (or (null buffer-file) (string= buffer-file log-file)) (if add-log-file-name-function (funcall add-log-file-name-function buffer-file) (setq buffer-file (if (string-match (concat "^" (regexp-quote (file-name-directory log-file))) buffer-file) (substring buffer-file (match-end 0)) (file-name-nondirectory buffer-file))) ;; If we have a backup file, it's presumably because we're ;; comparing old and new versions (e.g. for deleted ;; functions) and we'll want to use the original name. (if (backup-file-name-p buffer-file) (file-name-sans-versions buffer-file) buffer-file)))) ;;;###autoload (defun add-change-log-entry (&optional whoami file-name other-window new-entry) "Find change log file, and add an entry for today and an item for this file. Optional arg WHOAMI (interactive prefix) non-nil means prompt for user name and email (stored in `add-log-full-name' and `add-log-mailing-address'). Second arg FILE-NAME is file name of the change log. If nil, use the value of `change-log-default-name'. Third arg OTHER-WINDOW non-nil means visit in other window. Fourth arg NEW-ENTRY non-nil means always create a new entry at the front; never append to an existing entry. Option `add-log-keep-changes-together' otherwise affects whether a new entry is created. Option `add-log-always-start-new-record' non-nil means always create a new record, even when the last record was made on the same date and by the same person. The change log file can start with a copyright notice and a copying permission notice. The first blank line indicates the end of these notices. Today's date is calculated according to `add-log-time-zone-rule' if non-nil, otherwise in local time." (interactive (list current-prefix-arg (prompt-for-change-log-name))) (let* ((defun (add-log-current-defun)) (version (and change-log-version-info-enabled (change-log-version-number-search))) (buf-file-name (if add-log-buffer-file-name-function (funcall add-log-buffer-file-name-function) buffer-file-name)) (buffer-file (if buf-file-name (expand-file-name buf-file-name))) (file-name (expand-file-name (find-change-log file-name buffer-file))) ;; Set ITEM to the file name to use in the new item. (item (add-log-file-name buffer-file file-name)) bound full-name mailing-address) (if whoami (progn (setq full-name (read-string "Full name: " (or add-log-full-name (user-full-name)))) ;; Note that some sites have room and phone number fields in ;; full name which look silly when inserted. Rather than do ;; anything about that here, let user give prefix argument so that ;; s/he can edit the full name field in prompter if s/he wants. (setq mailing-address (read-string "Mailing address: " (or add-log-mailing-address user-mail-address))))) (unless (equal file-name buffer-file-name) (if (or other-window (window-dedicated-p (selected-window))) (find-file-other-window file-name) (find-file file-name))) (or (eq major-mode 'change-log-mode) (change-log-mode)) (undo-boundary) (goto-char (point-min)) (or full-name (setq full-name (or add-log-full-name (user-full-name)))) (or mailing-address (setq mailing-address (or add-log-mailing-address user-mail-address))) ;; If file starts with a copyright and permission notice, skip them. ;; Assume they end at first blank line. (when (looking-at "Copyright") (search-forward "\n\n") (skip-chars-forward "\n")) ;; Advance into first entry if it is usable; else make new one. (let ((new-entries (mapcar (lambda (addr) (concat (if (stringp add-log-time-zone-rule) (let ((tz (getenv "TZ"))) (unwind-protect (progn (set-time-zone-rule add-log-time-zone-rule) (funcall add-log-time-format)) (set-time-zone-rule tz))) (funcall add-log-time-format)) " " full-name " <" addr ">")) (if (consp mailing-address) mailing-address (list mailing-address))))) (if (and (not add-log-always-start-new-record) (let ((hit nil)) (dolist (entry new-entries hit) (when (looking-at (regexp-quote entry)) (setq hit t))))) (forward-line 1) (insert (nth (random (length new-entries)) new-entries) (if use-hard-newlines hard-newline "\n") (if use-hard-newlines hard-newline "\n")) (forward-line -1))) ;; Determine where we should stop searching for a usable ;; item to add to, within this entry. (setq bound (save-excursion (if (looking-at "\n*[^\n* \t]") (skip-chars-forward "\n") (if add-log-keep-changes-together (forward-page) ; page delimits entries for date (forward-paragraph))) ; paragraph delimits entries for file (point))) ;; Now insert the new line for this item. (cond ((re-search-forward "^\\s *\\*\\s *$" bound t) ;; Put this file name into the existing empty item. (if item (insert item))) ((and (not new-entry) (let (case-fold-search) (re-search-forward (concat (regexp-quote (concat "* " item)) ;; Don't accept `foo.bar' when ;; looking for `foo': "\\(\\s \\|[(),:]\\)") bound t))) ;; Add to the existing item for the same file. (re-search-forward "^\\s *$\\|^\\s \\*") (goto-char (match-beginning 0)) ;; Delete excess empty lines; make just 2. (while (and (not (eobp)) (looking-at "^\\s *$")) (delete-region (point) (line-beginning-position 2))) (insert (if use-hard-newlines hard-newline "\n") (if use-hard-newlines hard-newline "\n")) (forward-line -2) (indent-relative-maybe)) (t ;; Make a new item. (while (looking-at "\\sW") (forward-line 1)) (while (and (not (eobp)) (looking-at "^\\s *$")) (delete-region (point) (line-beginning-position 2))) (insert (if use-hard-newlines hard-newline "\n") (if use-hard-newlines hard-newline "\n") (if use-hard-newlines hard-newline "\n")) (forward-line -2) (indent-to left-margin) (insert "* ") (if item (insert item)))) ;; Now insert the function name, if we have one. ;; Point is at the item for this file, ;; either at the end of the line or at the first blank line. (if (not defun) ;; No function name, so put in a colon unless we have just a star. (unless (save-excursion (beginning-of-line 1) (looking-at "\\s *\\(\\*\\s *\\)?$")) (insert ": ") (if version (insert version ?\s))) ;; Make it easy to get rid of the function name. (undo-boundary) (unless (save-excursion (beginning-of-line 1) (looking-at "\\s *$")) (insert ?\s)) ;; See if the prev function name has a message yet or not. ;; If not, merge the two items. (let ((pos (point-marker))) (skip-syntax-backward " ") (skip-chars-backward "):") (if (and (looking-at "):") (let ((pos (save-excursion (backward-sexp 1) (point)))) (when (equal (buffer-substring pos (point)) defun) (delete-region pos (point))) (> fill-column (+ (current-column) (length defun) 4)))) (progn (skip-chars-backward ", ") (delete-region (point) pos) (unless (memq (char-before) '(?\()) (insert ", "))) (if (looking-at "):") (delete-region (+ 1 (point)) (line-end-position))) (goto-char pos) (insert "(")) (set-marker pos nil)) (insert defun "): ") (if version (insert version ?\s))))) ;;;###autoload (defun add-change-log-entry-other-window (&optional whoami file-name) "Find change log file in other window and add entry and item. This is just like `add-change-log-entry' except that it displays the change log file in another window." (interactive (if current-prefix-arg (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) (defvar change-log-indent-text 0) (defun change-log-indent () (let* ((indent (save-excursion (beginning-of-line) (skip-chars-forward " \t") (cond ((and (looking-at "\\(.*\\) [^ \n].*[^ \n] <.*>\\(?: +(.*)\\)? *$") ;; Matching the output of add-log-time-format is difficult, ;; but I'll get it has at least two adjacent digits. (string-match "[[:digit:]][[:digit:]]" (match-string 1))) 0) ((looking-at "[^*(]") (+ (current-left-margin) change-log-indent-text)) (t (current-left-margin))))) (pos (save-excursion (indent-line-to indent) (point)))) (if (> pos (point)) (goto-char pos)))) (defvar smerge-resolve-function) ;;;###autoload (define-derived-mode change-log-mode text-mode "Change Log" "Major mode for editing change logs; like Indented Text Mode. Prevents numeric backups and sets `left-margin' to 8 and `fill-column' to 74. New log entries are usually made with \\[add-change-log-entry] or \\[add-change-log-entry-other-window]. Each entry behaves as a paragraph, and the entries for one day as a page. Runs `change-log-mode-hook'. \\{change-log-mode-map}" (setq left-margin 8 fill-column 74 indent-tabs-mode t tab-width 8) (set (make-local-variable 'fill-paragraph-function) 'change-log-fill-paragraph) (set (make-local-variable 'indent-line-function) 'change-log-indent) (set (make-local-variable 'tab-always-indent) nil) ;; We really do want "^" in paragraph-start below: it is only the ;; lines that begin at column 0 (despite the left-margin of 8) that ;; we are looking for. Adding `* ' allows eliding the blank line ;; between entries for different files. (set (make-local-variable 'paragraph-start) "\\s *$\\|\f\\|^\\<") (set (make-local-variable 'paragraph-separate) paragraph-start) ;; 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 'smerge-resolve-function) 'change-log-resolve-conflict) (set (make-local-variable 'adaptive-fill-regexp) "\\s *") (set (make-local-variable 'font-lock-defaults) '(change-log-font-lock-keywords t nil nil backward-paragraph))) ;; It might be nice to have a general feature to replace this. The idea I ;; have is a variable giving a regexp matching text which should not be ;; moved from bol by filling. change-log-mode would set this to "^\\s *\\s(". ;; But I don't feel up to implementing that today. (defun change-log-fill-paragraph (&optional justify) "Fill the paragraph, but preserve open parentheses at beginning of lines. Prefix arg means justify as well." (interactive "P") (let ((end (progn (forward-paragraph) (point))) (beg (progn (backward-paragraph) (point))) (paragraph-start (concat paragraph-start "\\|\\s *\\s("))) (fill-region beg end justify) t)) (defcustom add-log-current-defun-header-regexp "^\\([[:upper:]][[:upper:]_ ]*[[:upper:]_]\\|[-_[:alpha:]]+\\)[ \t]*[:=]" "Heuristic regexp used by `add-log-current-defun' for unknown major modes." :type 'regexp :group 'change-log) ;;;###autoload (defvar add-log-lisp-like-modes '(emacs-lisp-mode lisp-mode scheme-mode dsssl-mode lisp-interaction-mode) "*Modes that look like Lisp to `add-log-current-defun'.") ;;;###autoload (defvar add-log-c-like-modes '(c-mode c++-mode c++-c-mode objc-mode) "*Modes that look like C to `add-log-current-defun'.") ;;;###autoload (defvar add-log-tex-like-modes '(TeX-mode plain-TeX-mode LaTeX-mode plain-tex-mode latex-mode) "*Modes that look like TeX to `add-log-current-defun'.") ;;;###autoload (defun add-log-current-defun () "Return name of function definition point is in, or nil. Understands C, Lisp, LaTeX (\"functions\" are chapters, sections, ...), Texinfo (@node titles) and Perl. Other modes are handled by a heuristic that looks in the 10K before point for uppercase headings starting in the first column or identifiers followed by `:' or `='. See variables `add-log-current-defun-header-regexp' and `add-log-current-defun-function'. Has a preference of looking backwards." (condition-case nil (save-excursion (let ((location (point))) (cond (add-log-current-defun-function (funcall add-log-current-defun-function)) ((memq major-mode add-log-lisp-like-modes) ;; If we are now precisely at 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. (when (and (looking-at "\\s(") (progn (end-of-defun) (< location (point))) (progn (forward-sexp -1) (>= location (point)))) (if (looking-at "\\s(") (forward-char 1)) ;; Skip the defining construct name, typically "defun" ;; or "defvar". (forward-sexp 1) ;; The second element is usually a symbol being defined. ;; If it is not, use the first symbol in it. (skip-chars-forward " \t\n'(") (buffer-substring-no-properties (point) (progn (forward-sexp 1) (point))))) ((and (memq major-mode add-log-c-like-modes) (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-no-properties (point) (progn (forward-sexp 1) (point)))) ((memq major-mode add-log-c-like-modes) ;; See whether the point is inside a defun. (let (having-previous-defun having-next-defun previous-defun-end next-defun-beginning) (save-excursion (setq having-previous-defun (c-beginning-of-defun)) (c-end-of-defun) ;; `c-end-of-defun' moves point to the line after ;; the function close, but the position we prefer ;; here is the position after the final }. (backward-sexp 1) (forward-sexp 1) ;; Skip the semicolon ``;'' for ;; enum/union/struct/class definition. (if (= (char-after (point)) ?\;) (forward-char 1)) (setq previous-defun-end (point))) (save-excursion (setq having-next-defun (c-end-of-defun)) (c-beginning-of-defun) (setq next-defun-beginning (point))) (if (and having-next-defun (< location next-defun-beginning)) (skip-syntax-forward " ")) (if (and having-previous-defun (> location previous-defun-end)) (skip-syntax-backward " ")) (unless (or ;; When there is no previous defun, the ;; point is not in a defun if it is not at ;; the beginning of the next defun. (and (not having-previous-defun) (not (= (point) next-defun-beginning))) ;; When there is no next defun, the point ;; is not in a defun if it is not at the ;; end of the previous defun. (and (not having-next-defun) (not (= (point) previous-defun-end))) ;; If the point is between two defuns, it ;; is not in a defun. (and (> (point) previous-defun-end) (< (point) next-defun-beginning))) ;; If the point is already at the beginning of a ;; defun, there is no need to move point again. (if (not (= (point) next-defun-beginning)) (c-beginning-of-defun)) ;; Is this a DEFUN construct? And is LOCATION in it? (if (and (looking-at "DEFUN\\b") (>= location (point))) ;; DEFUN ("file-name-directory", Ffile_name_directory, Sfile_name_directory, ...) ==> Ffile_name_directory ;; DEFUN(POSIX::STREAM-LOCK, stream lockp &key BLOCK SHARED START LENGTH) ==> POSIX::STREAM-LOCK (progn (down-list 1) (when (= (char-after (point)) ?\") (forward-sexp 1) (search-forward ",")) (skip-syntax-forward " ") (buffer-substring-no-properties (point) (progn (search-forward ",") (forward-char -1) (skip-syntax-backward " ") (point)))) (if (looking-at "^[+-]") ;; Objective-C (change-log-get-method-definition) ;; Ordinary C function syntax. (let ((beg (point))) (if (and ;; Protect against "Unbalanced parens" error. (condition-case nil (progn (down-list 1) ; into arglist (backward-up-list 1) (skip-chars-backward " \t") t) (error nil)) ;; Verify initial pos was after ;; real start of function. (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)) (let (end middle) ;; Don't include any final whitespace ;; in the name we use. (skip-chars-backward " \t\n") (setq end (point)) (backward-sexp 1) ;; Now find the right beginning of the name. ;; Include certain keywords if they ;; precede the name. (setq middle (point)) ;; We tried calling `forward-sexp' in a loop ;; but it causes inconsistency for C names. (forward-sexp -1) ;; Is this C++ method? (when (and (< 2 middle) (string= (buffer-substring (- middle 2) middle) "::")) ;; Include "classname::". (setq middle (point))) ;; Ignore these subparts of a class decl ;; and move back to the class name itself. (while (looking-at "public \\|private ") (skip-chars-backward " \t:") (setq end (point)) (backward-sexp 1) (setq middle (point)) (forward-word -1)) (and (bolp) (looking-at "enum \\|struct \\|union \\|class ") (setq middle (point))) (goto-char end) (when (eq (preceding-char) ?=) (forward-char -1) (skip-chars-backward " \t") (setq end (point))) (buffer-substring-no-properties middle end))))))))) ((memq major-mode add-log-tex-like-modes) (if (re-search-backward "\\\\\\(sub\\)*\\(section\\|paragraph\\|chapter\\)" nil t) (progn (goto-char (match-beginning 0)) (buffer-substring-no-properties (1+ (point)) ; without initial backslash (line-end-position))))) ((eq major-mode 'texinfo-mode) (if (re-search-backward "^@node[ \t]+\\([^,\n]+\\)" nil t) (match-string-no-properties 1))) ((memq major-mode '(perl-mode cperl-mode)) (if (re-search-backward "^sub[ \t]+\\([^({ \t\n]+\\)" nil t) (match-string-no-properties 1))) ;; Emacs's autoconf-mode installs its own ;; `add-log-current-defun-function'. This applies to ;; a different mode apparently for editing .m4 ;; autoconf source. ((eq major-mode 'autoconf-mode) (if (re-search-backward "^\\(\\(m4_\\)?define\\|A._DEFUN\\)(\\[?\\([A-Za-z0-9_]+\\)" nil t) (match-string-no-properties 3))) (t ;; If all else fails, try heuristics (let (case-fold-search result) (end-of-line) (when (re-search-backward add-log-current-defun-header-regexp (- (point) 10000) t) (setq result (or (match-string-no-properties 1) (match-string-no-properties 0))) ;; Strip whitespace away (when (string-match "\\([^ \t\n\r\f].*[^ \t\n\r\f]\\)" result) (setq result (match-string-no-properties 1 result))) result)))))) (error nil))) (defvar change-log-get-method-definition-md) ;; Subroutine used within change-log-get-method-definition. ;; Add the last match in the buffer to the end of `md', ;; followed by the string END; move to the end of that match. (defun change-log-get-method-definition-1 (end) (setq change-log-get-method-definition-md (concat change-log-get-method-definition-md (match-string 1) end)) (goto-char (match-end 0))) (defun change-log-get-method-definition () "For Objective C, return the method name if we are in a method." (let ((change-log-get-method-definition-md "[")) (save-excursion (if (re-search-backward "^@implementation\\s-*\\([A-Za-z_]*\\)" nil t) (change-log-get-method-definition-1 " "))) (save-excursion (cond ((re-search-forward "^\\([-+]\\)[ \t\n\f\r]*\\(([^)]*)\\)?\\s-*" nil t) (change-log-get-method-definition-1 "") (while (not (looking-at "[{;]")) (looking-at "\\([A-Za-z_]*:?\\)\\s-*\\(([^)]*)\\)?[A-Za-z_]*[ \t\n\f\r]*") (change-log-get-method-definition-1 "")) (concat change-log-get-method-definition-md "]")))))) (defun change-log-sortable-date-at () "Return date of log entry in a consistent form for sorting. Point is assumed to be at the start of the entry." (require 'timezone) (if (looking-at "^\\sw.........[0-9:+ ]*") (let ((date (match-string-no-properties 0))) (if date (if (string-match "\\(....\\)-\\(..\\)-\\(..\\)\\s-+" date) (concat (match-string 1 date) (match-string 2 date) (match-string 3 date)) (condition-case nil (timezone-make-date-sortable date) (error nil))))) (error "Bad date"))) (defun change-log-resolve-conflict () "Function to be used in `smerge-resolve-function'." (let ((buf (current-buffer))) (with-temp-buffer (insert-buffer-substring buf (match-beginning 1) (match-end 1)) (save-match-data (change-log-mode)) (let ((other-buf (current-buffer))) (with-current-buffer buf (save-excursion (save-restriction (narrow-to-region (match-beginning 0) (match-end 0)) (replace-match (match-string 3) t t) (change-log-merge other-buf)))))))) ;;;###autoload (defun change-log-merge (other-log) "Merge the contents of change log file OTHER-LOG with this buffer. Both must be found in Change Log mode (since the merging depends on the appropriate motion commands). OTHER-LOG can be either a file name or a buffer. Entries are inserted in chronological order. Both the current and old-style time formats for entries are supported." (interactive "*fLog file name to merge: ") (if (not (eq major-mode 'change-log-mode)) (error "Not in Change Log mode")) (let ((other-buf (if (bufferp other-log) other-log (find-file-noselect other-log))) (buf (current-buffer)) date1 start end) (save-excursion (goto-char (point-min)) (set-buffer other-buf) (goto-char (point-min)) (if (not (eq major-mode 'change-log-mode)) (error "%s not found in Change Log mode" other-log)) ;; Loop through all the entries in OTHER-LOG. (while (not (eobp)) (setq date1 (change-log-sortable-date-at)) (setq start (point) end (progn (forward-page) (point))) ;; Look for an entry in original buffer that isn't later. (with-current-buffer buf (while (and (not (eobp)) (string< date1 (change-log-sortable-date-at))) (forward-page)) (if (not (eobp)) (insert-buffer-substring other-buf start end) ;; At the end of the original buffer, insert a newline to ;; separate entries and then the rest of the file being ;; merged. (unless (or (bobp) (and (= ?\n (char-before)) (or (<= (1- (point)) (point-min)) (= ?\n (char-before (1- (point))))))) (insert (if use-hard-newlines hard-newline "\n"))) ;; Move to the end of it to terminate outer loop. (with-current-buffer other-buf (goto-char (point-max))) (insert-buffer-substring other-buf start))))))) ;;;###autoload (defun change-log-redate () "Fix any old-style date entries in the current log file to default format." (interactive) (require 'timezone) (save-excursion (goto-char (point-min)) (while (re-search-forward "^\\sw.........[0-9:+ ]*" nil t) (unless (= 12 (- (match-end 0) (match-beginning 0))) (let* ((date (save-match-data (timezone-fix-time (match-string 0) nil nil))) (zone (if (consp (aref date 6)) (nth 1 (aref date 6))))) (replace-match (format-time-string "%Y-%m-%d " (encode-time (aref date 5) (aref date 4) (aref date 3) (aref date 2) (aref date 1) (aref date 0) zone)))))))) (provide 'add-log) ;; arch-tag: 81eee6fc-088f-4372-a37f-80ad9620e762 ;;; add-log.el ends here