bbdb: prefix for sacha/try-expand-factoid-from-bbdb

| emacs

To control expansion further, I’ve made a bbdb: prefix required. This
will allow me to still properly use dabbrev expansion.

;; Particularly fun with ERC. I am now a bot!
(defun sacha/try-expand-factoid-from-bbdb (old)
  "Try to expand from BBDB. If OLD is non-nil, cycle through other possibilites."
  (unless old
      ;; First time, so search through the BBDB records for the factoid.
      (he-init-string (he-dabbrev-beg) (point))
      (setq he-expand-list nil)
      (when (string-match "bbdb:\\(.+\\)" he-search-string)
        (setq he-search-string (match-string 1 he-search-string))
         (lambda (item)
           (setq he-expand-list (append he-expand-list (list (bbdb-record-getprop item 'blog))))
           (setq he-expand-list (append he-expand-list (list (bbdb-record-getprop item 'web))))
           (setq he-expand-list (append he-expand-list (list (car (bbdb-record-net item)))))
           (setq he-expand-list (append he-expand-list (list (bbdb-record-getprop item 'notes)))))
         (let ((notes (cons '* he-search-string)))
           (bbdb-search (bbdb-records)
                        he-search-string he-search-string he-search-string
                        notes nil)))
        (setq he-expand-list (delq nil he-expand-list)))))
  (while (and he-expand-list
              (or (not (car he-expand-list))
                  (he-string-member (car he-expand-list) he-tried-table t)))
    (setq he-expand-list (cdr he-expand-list)))
  (if (null he-expand-list)
        (if old (he-reset-string))
      (he-substitute-string (car he-expand-list) t)
      (setq he-expand-list (cdr he-expand-list))


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