Re: difficulty extracting email address from property field containing gmail link

[Kyle Meyer]

Ian Garmaise writes:

> This is working well, except for the property used for the email address.
> Unfortunately, I stored this as a gmail link.  This makes it difficult to
> extract the actual email address using org-collector as follows:
>
> #+BEGIN: propview :cols ((car (s-split " " ITEM))  EMAIL_ADDRESS)  :id
> "candidates" :match "testthis" :wrap example
>
> the result produced looks like this:
> 
> | (car (s-split " " ITEM)) | EMAIL_ADDRESS                                    
>                                |
> |--------------------------+---------------------------------------------------------------------------------|
> | "Ciara"                  | 
> [[https://mail.google.com/mail/?view=cm&fs=1&to=ciaraxyz@gmail\.com]]         
>     |
> | "Duncan"                 | 
> [[https://mail.google.com/mail/?view=cm&fs=1&to=duncanxyz@indeedemail\.com]] |
>
> I have looked at several methods that I found on the web to extract the
> email address from the link in the property, but haven't yet found a
> solution that I could get to work.  Still building up my elisp skillset,
> would appreciate suggestions.

I've never used org-collector, but quickly trying to wire up a function
to extract the email part of the text you show, I suspect some of the
trouble you're having is that the value comes in as a vector because
org-propview-collect processes it with org-babel-read.  So perhaps
something like this would get you on the right track:

  (require 'subr-x)
  
  (defun my/extract-email-from-link (value)
    (setq value (format "%S" value))
    (when-let ((link (and (string-match org-link-bracket-re value)
                          (org-link-unescape
                           (match-string-no-properties 1 value)))))
      (thread-last
          link
        (replace-regexp-in-string
         (rx string-start (one-or-more not-newline) "to="
             (group (one-or-more not-newline)) string-end)
         "\\1")
        (replace-regexp-in-string (rx "\\.") "."))))


--8<---------------cut here---------------start------------->8---
#+BEGIN: propview :cols ((car (s-split " " ITEM)) (my/extract-email-from-link 
EMAIL_ADDRESS)) :id global
| (car (s-split " " ITEM)) | (my/extract-email-from-link EMAIL_ADDRESS) |
|--------------------------+--------------------------------------------|
| "Ciara"                  | "ciaraxyz@gmail.com"                       |
| "Duncan"                 | "duncanxyz@indeedemail.com"                |
|--------------------------+--------------------------------------------|
|                          |                                            |
#+END:

* Ciara
:PROPERTIES:
:EMAIL_ADDRESS: 
[[https://mail.google.com/mail/?view=cm&fs=1&to=ciaraxyz@gmail\.com]]
:END:

* Duncan
:PROPERTIES:
:EMAIL_ADDRESS: 
[[https://mail.google.com/mail/?view=cm&fs=1&to=duncanxyz@indeedemail\.com]]
:END:
--8<---------------cut here---------------end--------------->8---