[elpa] scratch/org-contacts-rebased d3509e4 076/118: contrib/lisp/org-contacts.el: Complete contacts using tags and properties

[Stefan Monnier]

branch: scratch/org-contacts-rebased
commit d3509e44ed46c5c528dacb5d6b0dfdbd5988e03d
Author: Grégoire Jadi <gregoire.jadi@gmail.com>
Commit: Grégoire Jadi <gregoire.jadi@gmail.com>

    contrib/lisp/org-contacts.el: Complete contacts using tags and properties
    
    * contrib/lisp/org-contacts.el (org-contacts-complete-tags-props): New
    function that allows the user to retrieve contacts based on tags and
    properties.
    
    (org-contacts-complete-functions): Add
    org-contacts-complete-tags-props to the completion functions.
    
    (org-contacts-tags-props-prefix): Prefix used to detect the
    completion method wished.
    
    Based on the idea and implementation of John Kitchin
---
 org-contacts.el | 44 +++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 43 insertions(+), 1 deletion(-)

diff --git a/org-contacts.el b/org-contacts.el
index a7559f7..9ddf28d 100644
--- a/org-contacts.el
+++ b/org-contacts.el
@@ -155,6 +155,11 @@ The following replacements are available:
   :type 'string
   :group 'org-contacts)
 
+(defcustom org-contacts-tags-props-prefix "#"
+  "Tags and properties prefix."
+  :type 'string
+  :group 'org-contacts)
+
 (defcustom org-contacts-matcher
   (mapconcat 'identity (list org-contacts-email-property
                             org-contacts-alias-property
@@ -184,7 +189,7 @@ This overrides `org-email-link-description-format' if set."
   :type 'boolean)
 
 (defcustom org-contacts-complete-functions
-  '(org-contacts-complete-group org-contacts-complete-name)
+  '(org-contacts-complete-group org-contacts-complete-tags-props 
org-contacts-complete-name)
   "List of functions used to complete contacts in `message-mode'."
   :group 'org-contacts
   :type 'hook)
@@ -523,6 +528,43 @@ A group FOO is composed of contacts with the tag FOO."
                (completion-table-case-fold completion-list
                                            (not 
org-contacts-completion-ignore-case))))))))
 
+(defun org-contacts-complete-tags-props (start end matcher)
+  "Insert emails that match the tags expression.
+
+For example: FOO-BAR will match entries tagged with FOO but not
+with BAR.
+
+See (org) Matching tags and properties for a complete
+description."
+  (let* ((completion-ignore-case org-contacts-completion-ignore-case)
+        (completion-p (org-string-match-p
+                             (concat "^" org-contacts-tags-props-prefix) 
string)))
+    (when completion-p
+      (let ((result
+            (mapconcat
+             'identity
+             (loop for contact in (org-contacts-db)
+                   for contact-name = (car contact)
+                   for email = (org-contacts-strip-link (car 
(org-contacts-split-property
+                                                              (or
+                                                               (cdr 
(assoc-string org-contacts-email-property
+                                                                               
   (caddr contact)))
+                                                               ""))))
+                   for tags = (cdr (assoc "TAGS" (nth 2 contact)))
+                   for tags-list = (if tags
+                                       (split-string (substring (cdr (assoc 
"TAGS" (nth 2 contact))) 1 -1) ":")
+                                     '())
+                   if (let ((todo-only nil))
+                        (eval (cdr (org-make-tags-matcher matcher))))
+                   
+                   collect (org-contacts-format-email contact-name email))
+             ",")))
+       (when (not (string= "" result))
+         ;; return (start end function)
+         (lexical-let* ((to-return result))
+           (list start end
+                 (lambda (string pred &optional to-ignore) to-return))))))))
+
 (defun org-contacts-remove-ignored-property-values (ignore-list list)
   "Remove all ignore-list's elements from list and you can use
    regular expressions in the ignore list."