(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)
(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
"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
(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
'((t (:inherit font-lock-string-face)))
"Face used to highlight dates in date lines."
:version "21.1"
:group 'change-log)
(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)
(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)
(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)
(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)
(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)
(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)
(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)
(put 'change-log-acknowledgement-face 'face-alias 'change-log-acknowledgement)
(defvar change-log-font-lock-keywords
'( ("^[0-9-]+ +\\|^\\(Sun\\|Mon\\|Tue\\|Wed\\|Thu\\|Fri\\|Sat\\) [A-z][a-z][a-z] [0-9:+ ]+"
(0 'change-log-date-face)
("\\([^<(]+?\\)[ \t]*[(<]\\([A-Za-z0-9_.+-]+@[A-Za-z0-9_.-]+\\)[>)]" nil nil
(1 'change-log-name)
(2 'change-log-email)))
("^\\( +\\|\t\\)\\* \\([^ ,:([\n]+\\)"
(2 'change-log-file)
("\\=, \\([^ ,:([\n]+\\)" nil nil (1 'change-log-file))
("\\= (\\([^(),\n]+\\|(\\(setf\\|SETF\\) [^() ,\n]+)\\)"
nil nil (1 'change-log-list))
("\\=, *\\([^(),\n]+\\|(\\(setf\\|SETF\\) [^() ,\n]+)\\)"
nil nil (1 'change-log-list)))
("^\\( +\\|\t\\)(\\([^(),\n]+\\|(\\(setf\\|SETF\\) [^() ,\n]+)\\)"
(2 'change-log-list)
("\\=, *\\([^(),\n]+\\|(\\(setf\\|SETF\\) [^() ,\n]+)\\)" nil nil
(1 'change-log-list)))
("\\[!?\\([^]\n]+\\)\\]\\(:\\| (\\)" (1 'change-log-conditionals))
("<\\([^>\n]+\\)>\\(:\\| (\\)" (1 'change-log-function))
("\\(^\\( +\\|\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.")
(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)))
(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))
(limit
(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)))))
(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 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)))
(item (add-log-file-name buffer-file file-name))
bound
(full-name (or add-log-full-name (user-full-name)))
(mailing-address (or add-log-mailing-address user-mail-address)))
(if whoami
(progn
(setq full-name (read-string "Full name: " full-name))
(setq mailing-address
(read-string "Mailing address: " mailing-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))
(when (looking-at "Copyright")
(search-forward "\n\n")
(skip-chars-forward "\n"))
(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)))
(setq bound
(save-excursion
(if (looking-at "\n*[^\n* \t]")
(skip-chars-forward "\n")
(if add-log-keep-changes-together
(forward-page) (forward-paragraph))) (point)))
(cond ((re-search-forward "^\\s *\\*\\s *$" bound t)
(if item
(insert item)))
((and (not new-entry)
(let (case-fold-search)
(re-search-forward
(concat (regexp-quote (concat "* " item))
"\\(\\s \\|[(),:]\\)")
bound t)))
(re-search-forward "^\\s *$\\|^\\s \\*")
(goto-char (match-beginning 0))
(while (and (not (eobp)) (looking-at "^\\s *$"))
(delete-region (point) (line-beginning-position 2)))
(insert (if use-hard-newlines hard-newline "\n")
(if use-hard-newlines hard-newline "\n"))
(forward-line -2)
(indent-relative-maybe))
(t
(while (looking-at "\\sW")
(forward-line 1))
(while (and (not (eobp)) (looking-at "^\\s *$"))
(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))))
(if (not defun)
(unless (save-excursion
(beginning-of-line 1)
(looking-at "\\s *\\(\\*\\s *\\)?$"))
(insert ": ")
(if version (insert version ?\s)))
(undo-boundary)
(unless (save-excursion
(beginning-of-line 1)
(looking-at "\\s *$"))
(insert ?\s))
(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)))))
(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))
(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] <.*>\\(?: +(.*)\\)? *$")
(string-match "[[:digit:]][[:digit:]]" (match-string 1)))
0)
((looking-at "[^*(]")
(+ (current-left-margin) change-log-indent-text))
(t (current-left-margin)))))
(pos (save-excursion (indent-line-to indent) (point))))
(if (> pos (point)) (goto-char pos))))
(defvar smerge-resolve-function)
(define-derived-mode change-log-mode text-mode "Change Log"
"Major mode for editing change logs; like Indented Text Mode.
Prevents numeric backups and sets `left-margin' to 8 and `fill-column' to 74.
New log entries are usually made with \\[add-change-log-entry] or \\[add-change-log-entry-other-window].
Each entry behaves as a paragraph, and the entries for one day as a page.
Runs `change-log-mode-hook'.
\\{change-log-mode-map}"
(setq left-margin 8
fill-column 74
indent-tabs-mode t
tab-width 8)
(set (make-local-variable 'fill-paragraph-function)
'change-log-fill-paragraph)
(set (make-local-variable 'indent-line-function) 'change-log-indent)
(set (make-local-variable 'tab-always-indent) nil)
(set (make-local-variable 'paragraph-start) "\\s *$\\|\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 '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)))
(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)
(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)
(backward-sexp 1)
(forward-sexp 1)
(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
(and (not having-previous-defun)
(not (= (point)
next-defun-beginning)))
(and (not having-next-defun)
(not (= (point)
previous-defun-end)))
(and (> (point) previous-defun-end)
(< (point) next-defun-beginning)))
(if (not (= (point) next-defun-beginning))
(c-beginning-of-defun))
(if (and (looking-at "DEFUN\\b")
(>= location (point)))
(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))))))))
(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))
(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)
(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")))
(with-current-buffer other-buf
(goto-char (point-max)))
(insert-buffer-substring other-buf start)))))))
(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)