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-;;; bbdb-anniv.el --- get anniversaries from BBDB -*- lexical-binding: t -*-
-
-;; Copyright (C) 2011-2017 Free Software Foundation, Inc.
-
-;; This file is part of the Insidious Big Brother Database (aka BBDB),
-
-;; BBDB 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 3 of the License, or
-;; (at your option) any later version.
-
-;; BBDB 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 BBDB. If not, see <http://www.gnu.org/licenses/>.
-
-;;; Commentary:
-;; Anniversaries are stored in xfields as defined via `bbdb-anniv-alist'.
-;; Each such field may contain multiple anniversaries entries with separators
-;; defined via `bbdb-separator-alist' (newlines by default).
-;; Each anniversary entry is a string DATE followed by optional TEXT.
-;; DATE may take the same format as the date of ordinary diary entries.
-;; In particular, `calendar-date-style' is obeyed via `diary-date-forms'.
-;; If `bbdb-anniv-alist' has a non-nil FORM for this type of anniversary,
-;; FORM is used to display the anniversary entry in the diary buffer.
-;; If FORM is nil, TEXT is used instead to display the anniversary entry
-;; in the diary buffer.
-;;
-;; To display BBDB anniversaries in the Emacs diary,
-;; call `bbdb-initialize' with arg `anniv'.
-;;
-;; See the BBDB info manual for documentation.
-
-;;; Code:
-
-(require 'bbdb)
-(require 'bbdb-com)
-(require 'diary-lib)
-(eval-when-compile
- (require 'cl-lib))
-
-(defcustom bbdb-anniv-alist
- '((birthday . "%n's %d%s birthday")
- (wedding . "%n's %d%s wedding anniversary")
- (anniversary))
- "Alist of rules for formatting anniversaries in the diary buffer.
-Each element is of the form (LABEL . FORM).
-LABEL is the xfield where this type of anniversaries is stored.
-FORM is a format string with the following substitutions:
- %n name of the record
- %d number of years
- %s ordinal suffix (st, nd, rd, th) for the year.
- %t the optional text following the date string in field LABEL.
-If FORM is nil, use the text following the date string in field LABEL
-as format string."
- :type '(repeat (cons :tag "Rule"
- (symbol :tag "Label")
- (choice (string)
- (const nil))))
- :group 'bbdb-utilities-anniv)
-
-;; `bbdb-anniv-diary-entries' becomes a member of `diary-list-entries-hook'.
-;; When this hook is run by `diary-list-entries', the variable `original-date'
-;; is bound to the value of arg DATE of `diary-list-entries'.
-;; Also, `number' is arg NUMBER of `diary-list-entries'.
-;; `diary-list-entries' selects the entries for NUMBER days starting with DATE.
-
-(defvar original-date) ; defined in diary-lib
-(with-no-warnings (defvar number)) ; defined in diary-lib
-
-;;;###autoload
-(defun bbdb-anniv-diary-entries ()
- "Add anniversaries from BBDB records to `diary-list-entries'.
-This obeys `calendar-date-style' via `diary-date-forms'.
-To enable this feature, put the following into your .emacs:
-
- \(add-hook 'diary-list-entries-hook 'bbdb-anniv-diary-entries)"
- ;; Loop over NUMBER dates starting from ORGINAL-DATE.
- (let* ((num-date (1- (calendar-absolute-from-gregorian original-date)))
- (end-date (+ num-date number)))
- (while (<= (setq num-date (1+ num-date)) end-date)
- (let* ((date (calendar-gregorian-from-absolute num-date))
- (dd (calendar-extract-day date))
- (mm (calendar-extract-month date))
- (yy (calendar-extract-year date))
- ;; We construct a regexp that only uses shy groups,
- ;; except for the part of the regexp matching the year.
- ;; This way we can grab the year from the date string.
- (year "\\([0-9]+\\)\\|\\*")
- (dayname (format "%s\\|%s\\.?" (calendar-day-name date)
- (calendar-day-name date 'abbrev)))
- (lex-env `((day . ,(format "0*%d" dd))
- (month . ,(format "0*%d" mm)) (year . ,year)
- (dayname . ,dayname)
- (monthname . ,(format "%s\\|%s" (calendar-month-name mm)
- (calendar-month-name mm 'abbrev)))))
- ;; Require that the matched date is at the beginning of the string.
- (fmt (format "\\`%s?\\(?:%%s\\)"
- (regexp-quote diary-nonmarking-symbol)))
- date-forms)
-
- (cl-flet ((fun (date-form)
- (push (cons (format fmt
- (mapconcat (lambda (form) (eval form lex-env))
- (if (eq (car date-form) 'backup)
- (cdr date-form) date-form)
- "\\)\\(?:"))
- (eq (car date-form) 'backup))
- date-forms)))
- (mapc #'fun diary-date-forms)
-
- ;; The anniversary of February 29 is considered to be March 1
- ;; in non-leap years. So we search for February 29, too.
- (when (and (= mm 3) (= dd 1)
- (not (calendar-leap-year-p yy)))
- (setq lex-env `((day . "0*29") (month . "0*2") (year . ,year)
- (dayname . ,dayname)
- (monthname . ,(format "%s\\|%s" (calendar-month-name 2)
- (calendar-month-name 2 'abbrev)))))
- (mapc #'fun diary-date-forms)))
-
- (dolist (record (bbdb-records))
- (dolist (rule bbdb-anniv-alist)
- (dolist (anniv (bbdb-record-xfield-split record (car rule)))
- (let ((date-forms date-forms)
- (anniv-string (concat anniv " X")) ; for backup forms
- (case-fold-search t)
- form yr text)
- (while (setq form (pop date-forms))
- (when (string-match (car form) anniv-string)
- (setq date-forms nil
- yr (match-string 1 anniv-string)
- yr (if (and yr (string-match-p "[0-9]+" yr))
- (- yy (string-to-number yr))
- 100) ; as in `diary-anniversary'
- ;; For backup forms we should search backward in
- ;; anniv-string from (match-end 0) for "\\<".
- ;; That gets too complicated here!
- ;; Yet for the default value of `diary-date-forms'
- ;; this would matter only if anniv-string started
- ;; with a time. That is rather rare for anniversaries.
- ;; Then we may simply step backward by one character.
- text (substring anniv-string (if (cdr form) ; backup
- (1- (match-end 0))
- (match-end 0))
- -1)
- text (replace-regexp-in-string "\\`[ \t]+" "" text)
- text (replace-regexp-in-string "[ \t]+\\'" "" text))
- (if (cdr rule)
- (setq text (replace-regexp-in-string "%t" text (cdr rule))))
- ;; Add the anniversaries to `diary-entries-list'.
- (if (and (numberp yr) (< 0 (length text)))
- (diary-add-to-list
- date
- ;; `diary-add-to-list' expects an arg SPECIFIER for being
- ;; able to jump to the location of the entry in the diary
- ;; file. Here we only have BBDB records. So we use
- ;; an empty string for SPECIFIER, but instead we `propertize'
- ;; the STRING passed to `diary-add-to-list'.
- (propertize
- (format
- ;; Text substitution similar to `diary-anniversary'.
- (replace-regexp-in-string "%n" (bbdb-record-name record) text)
- yr (diary-ordinal-suffix yr))
- 'diary-goto-entry (list 'bbdb-display-records (list record)))
- ""))))))))))))
-
-;; based on `diary-goto-entry'
-(defun bbdb-anniv-goto-entry (button)
- "Jump to the diary entry for the BUTTON at point.
-The character at point may have a text property `diary-goto-entry'
-which should be a list (FUNCTION ARG1 ARG2 ...). Then call FUNCTION
-with args ARG1, ARG2, ... to locate the entry. Otherwise follow
-the rules used by `diary-goto-entry'."
- (let* ((fun-call (get-text-property (overlay-start button)
- 'diary-goto-entry))
- (locator (button-get button 'locator))
- (marker (car locator))
- markbuf file)
- (cond (fun-call
- (apply (car fun-call) (cdr fun-call)))
- ;; If marker pointing to diary location is valid, use that.
- ((and marker (setq markbuf (marker-buffer marker)))
- (pop-to-buffer markbuf)
- (goto-char (marker-position marker)))
- ;; Marker is invalid (eg buffer has been killed).
- ((and (setq file (cadr locator))
- (file-exists-p file)
- (find-file-other-window file))
- (when (eq major-mode (default-value 'major-mode)) (diary-mode))
- (goto-char (point-min))
- (if (re-search-forward (format "%s.*\\(%s\\)"
- (regexp-quote (nth 2 locator))
- (regexp-quote (nth 3 locator)))
- nil t)
- (goto-char (match-beginning 1))))
- (t
- (message "Unable to locate this diary entry")))))
-
-;; `diary-goto-entry-function' is rather inflexible if multiple packages
-;; want to use it for its purposes: this variable can be hijacked
-;; only once. Here our function `bbdb-anniv-goto-entry' should work
-;; for other packages, too.
-(setq diary-goto-entry-function 'bbdb-anniv-goto-entry)
-
-(provide 'bbdb-anniv)
-
-;;; bbdb-anniv.el ends here
generated by cgit v1.2.3-60-g2f50 (git 2.42.0) at 2024-10-20 22:04:15 +0000