(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)
(defcustom change-log-mode-hook nil
"Normal hook run by `change-log-mode'."
:type 'hook
:group 'change-log)
(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)
(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)
(defcustom add-log-mailing-address nil
"*Electronic mail address of user, for inclusion in ChangeLog daily headers.
This defaults to the value of `user-mail-address'."
:type '(choice (const :tag "Default" nil)
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-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
(concat "^(def[^ \t\n]+[ \t]+[^ \t\n][ \t]\"" re)
(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-face
'((t (:inherit font-lock-string-face)))
"Face used to highlight dates in date lines."
:version "21.1"
:group 'change-log)
(defface change-log-name-face
'((t (:inherit font-lock-constant-face)))
"Face for highlighting author names."
:version "21.1"
:group 'change-log)
(defface change-log-email-face
'((t (:inherit font-lock-variable-name-face)))
"Face for highlighting author email addresses."
:version "21.1"
:group 'change-log)
(defface change-log-file-face
'((t (:inherit font-lock-function-name-face)))
"Face for highlighting file names."
:version "21.1"
:group 'change-log)
(defface change-log-list-face
'((t (:inherit font-lock-keyword-face)))
"Face for highlighting parenthesized lists of functions or variables."
:version "21.1"
:group 'change-log)
(defface change-log-conditionals-face
'((t (:inherit font-lock-variable-name-face)))
"Face for highlighting conditionals of the form `[...]'."
:version "21.1"
:group 'change-log)
(defface change-log-function-face
'((t (:inherit font-lock-variable-name-face)))
"Face for highlighting items of the form `<....>'."
:version "21.1"
:group 'change-log)
(defface change-log-acknowledgement-face
'((t (:inherit font-lock-comment-face)))
"Face for highlighting acknowledgments."
:version "21.1"
:group 'change-log)
(defvar change-log-font-lock-keywords
'( ("^\\sw.........[0-9:+ ]*"
(0 'change-log-date-face)
("\\([^<(]+?\\)[ \t]*[(<]\\([A-Za-z0-9_.-]+@[A-Za-z0-9_.-]+\\)[>)]" nil nil
(1 'change-log-name-face)
(2 'change-log-email-face)))
("^\t\\* \\([^ ,:([\n]+\\)"
(1 'change-log-file-face)
("\\=, \\([^ ,:([\n]+\\)" nil nil (1 'change-log-file-face))
("\\= (\\([^) ,:\n]+\\)" nil nil (1 'change-log-list-face))
("\\=, *\\([^) ,:\n]+\\)" nil nil (1 'change-log-list-face)))
("^\t(\\([^) ,:\n]+\\)"
(1 'change-log-list-face)
("\\=, *\\([^) ,:\n]+\\)" nil nil (1 'change-log-list-face)))
("\\[!?\\([^]\n]+\\)\\]\\(:\\| (\\)" (1 'change-log-conditionals-face))
("<\\([^>\n]+\\)>\\(:\\| (\\)" (1 'change-log-function-face))
("\\(^\t\\| \\)\\(From\\|Patch\\(es\\)? by\\|Report\\(ed by\\| from\\)\\|Suggest\\(ed by\\|ion from\\)\\)"
2 'change-log-acknowledgement-face))
"Additional expressions to highlight in Change Log mode.")
(defvar change-log-mode-map (make-sparse-keymap)
"Keymap for Change Log major mode.")
(defvar change-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.")
(defun add-log-iso8601-time-zone (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)))
(defun add-log-iso8601-time-string ()
(if change-log-time-zone-rule
(let ((tz (getenv "TZ"))
(now (current-time)))
(unwind-protect
(progn
(set-time-zone-rule change-log-time-zone-rule)
(concat
(format-time-string "%Y-%m-%d " now)
(add-log-iso8601-time-zone now)))
(set-time-zone-rule tz)))
(format-time-string "%Y-%m-%d")))
(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 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))))
(if (string= (file-name-nondirectory name) "")
(expand-file-name (file-name-nondirectory default)
name)
(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))
(end
(if (> size (* 100 80))
(/ size 10)
size))
version)
(or (and buffer-file-name (vc-workfile-version buffer-file-name))
(save-restriction
(widen)
(let ((regexps change-log-version-number-regexp-list))
(while regexps
(save-excursion
(goto-char (point-min))
(when (re-search-forward (pop regexps) end t)
(setq version (match-string 1)
regexps nil)))))))))
(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'."
(or file-name
(setq file-name (and change-log-default-name
(file-name-directory change-log-default-name)
change-log-default-name))
(progn
(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)))
(setq file-name (file-chase-links file-name))
(setq file-name (expand-file-name file-name))
(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))))
(not (string= (file-name-directory file1)
parent-dir))))
(setq file1 (expand-file-name
(file-name-nondirectory (change-log-name))
parent-dir)))
(if (or (get-file-buffer file1) (file-exists-p file1))
(setq file-name file1)))))
(set (make-local-variable 'change-log-default-name) file-name)
file-name)
(defun add-log-file-name (buffer-file log-file)
(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 (backup-file-name-p buffer-file)
(file-name-sans-versions buffer-file)
buffer-file))))
(defun add-change-log-entry (&optional whoami file-name other-window new-entry)
"Find change log file and add an entry for today.
Optional arg WHOAMI (interactive prefix) non-nil means prompt for user
name and site.
Second arg is FILE-NAME of change log. If nil, uses `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.
Today's date is calculated according to `change-log-time-zone-rule' if
non-nil, otherwise in local time."
(interactive (list current-prefix-arg
(prompt-for-change-log-name)))
(or add-log-full-name
(setq add-log-full-name (user-full-name)))
(or add-log-mailing-address
(setq add-log-mailing-address user-mail-address))
(if whoami
(progn
(setq add-log-full-name (read-input "Full name: " add-log-full-name))
(setq add-log-mailing-address
(read-input "Mailing address: " add-log-mailing-address))))
(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
(or file-name (find-change-log file-name buffer-file))))
(entry (add-log-file-name buffer-file file-name))
bound)
(if (or (and other-window (not (equal file-name buffer-file-name)))
(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))
(let ((new-entry (concat (funcall add-log-time-format)
" " add-log-full-name
" <" add-log-mailing-address ">")))
(if (looking-at (regexp-quote new-entry))
(forward-line 1)
(insert new-entry "\n\n")))
(setq bound
(progn
(if (looking-at "\n*[^\n* \t]")
(skip-chars-forward "\n")
(if add-log-keep-changes-together
(forward-page) (forward-paragraph))) (point)))
(goto-char (point-min))
(cond ((re-search-forward "^\\s *\\*\\s *$" bound t)
(if entry
(insert entry)))
((and (not new-entry)
(let (case-fold-search)
(re-search-forward
(concat (regexp-quote (concat "* " entry))
"\\(\\s \\|[(),:]\\)")
bound t)))
(re-search-forward "^\\s *$\\|^\\s \\*")
(goto-char (match-beginning 0))
(while (and (not (eobp)) (looking-at "^\\s *$"))
(delete-region (point) (line-beginning-position 2)))
(insert-char ?\n 2)
(forward-line -2)
(indent-relative-maybe))
(t
(forward-line 1)
(while (looking-at "\\sW")
(forward-line 1))
(while (and (not (eobp)) (looking-at "^\\s *$"))
(delete-region (point) (line-beginning-position 2)))
(insert-char ?\n 3)
(forward-line -2)
(indent-to left-margin)
(insert "* ")
(if entry (insert entry))))
(if defun
(progn
(undo-boundary)
(unless (save-excursion
(beginning-of-line 1)
(looking-at "\\s *$"))
(insert ?\ ))
(let ((pos (point-marker)))
(if (and (skip-syntax-backward " ")
(skip-chars-backward "):")
(looking-at "):")
(progn (delete-region (+ 1 (point)) (+ 2 (point))) t)
(> fill-column (+ (current-column) (length defun) 3)))
(progn (delete-region (point) pos)
(insert ", "))
(goto-char pos)
(insert "("))
(set-marker pos nil))
(insert defun "): ")
(if version
(insert version ?\ )))
(unless (save-excursion
(beginning-of-line 1)
(looking-at "\\s *\\(\\*\\s *\\)?$"))
(insert ": ")
(if version (insert version ?\ ))))))
(defun add-change-log-entry-other-window (&optional whoami file-name)
"Find change log file in other window and add an entry for today.
Optional arg WHOAMI (interactive prefix) non-nil means prompt for user
name and site.
Second optional arg FILE-NAME is file name of change log.
If nil, use `change-log-default-name'.
Affected by the same options as `add-change-log-entry'."
(interactive (if current-prefix-arg
(list current-prefix-arg
(prompt-for-change-log-name))))
(add-change-log-entry whoami file-name t))
(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
mode-name "Change Log"
left-margin 8
fill-column 74
indent-tabs-mode t
tab-width 8)
(use-local-map change-log-mode-map)
(set (make-local-variable 'fill-paragraph-function)
'change-log-fill-paragraph)
(set (make-local-variable 'paragraph-start) "\\s *$\\|\f\\|^\\<")
(set (make-local-variable 'paragraph-separate) paragraph-start)
(set (make-local-variable 'page-delimiter) "^\\<\\|^\f")
(set (make-local-variable 'version-control) 'never)
(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))
(run-hooks 'change-log-mode-hook))
(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)
(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'.")
(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'.")
(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'.")
(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)
(or (eobp) (forward-char 1))
(beginning-of-defun)
(when (and (looking-at "\\s(")
(progn (end-of-defun)
(< location (point)))
(progn (forward-sexp -1)
(>= location (point))))
(if (looking-at "\\s(")
(forward-char 1))
(forward-sexp 1)
(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)
(while (eq (char-after (- (point) 2)) ?\\)
(forward-line -1))
(looking-at "[ \t]*#[ \t]*define[ \t]")))
(beginning-of-line)
(while (eq (char-after (- (point) 2)) ?\\) (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)
(beginning-of-line)
(while (not (looking-at "{\\|\\(\\s *$\\)"))
(forward-line 1))
(or (eobp)
(forward-char 1))
(beginning-of-defun)
(when (progn (end-of-defun)
(< location (point)))
(backward-sexp 1)
(let (beg tem)
(forward-line -1)
(while (and (not (bobp))
(looking-at "[ \t\n]"))
(forward-line -1))
(if (condition-case nil
(and (save-excursion
(end-of-line)
(while (= (preceding-char) ?\\)
(end-of-line 2))
(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
(forward-sexp 1)
(skip-chars-forward " ,")))
(buffer-substring-no-properties
(point)
(progn (forward-sexp 1)
(point))))
(if (looking-at "^[+-]")
(change-log-get-method-definition)
;; Ordinary C function syntax.
(setq 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))
(forward-word -1)
;; 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-merge (other-log)
"Merge the contents of ChangeLog file OTHER-LOG with this buffer.
Both must be found in Change Log mode (since the merging depends on
the appropriate motion commands).
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 (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))
(while (not (eobp))
(setq date1 (change-log-sortable-date-at))
(setq start (point)
end (progn (forward-page) (point)))
(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)
(insert "\n")
(insert-buffer-substring other-buf start
(with-current-buffer other-buf
(goto-char (point-max))
(point)))))))))
(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)