Hi, I was wanting to leverage elpher-visit-page to automate downloading some gemini files and various other nefarious purposes. I was hoping I could, in an elisp program, do something like this:

```
(elpher-visit-page
 "gemini://gem.librehacker.com"
 (lambda (data mime)
   (let ((coding-system-for-write 'binary))
     (with-temp-file "~/Downloads/somefile.gmi"
       (insert data)))))
```

But I get error "(wrong-type-argument url 101)".

Evidently, I need to convert my address string to another data structure. Could somebody show me what I need to do, exactly?

-- 
📛 Christopher Howard
🚀 gemini://gem.librehacker.com
🌐 http://gem.librehacker.com

בראשית ברא אלהים את השמים ואת הארץ

hello Christopher,

This function below has been serving me well.  I guess it might work
for gemini too, with some changes.

You'll see how you give it an address and it saves the results into a
buffer.

Let me know how it goes?

Jone


 (defun jw-get-gopher (url)
    (save-excursion
      (elpher-process-cleanup)
      (get-buffer-create "*elpher*")
      (let* ((cleaned-url (string-trim url))
             (address (elpher-address-from-url cleaned-url)))
        (setq jw-gopher-ready nil)
        (with-current-buffer (get-buffer-create "*jw-get-gopher*")
          (erase-buffer))
        (elpher-get-host-response address 70
                                  (concat
                                   (elpher-gopher-address-selector address)
                                   "\r\n")
                                  (lambda (s)
                                    (with-current-buffer
                                        (get-buffer-create "*jw-get-gopher*")
                                      (erase-buffer)
                                      (insert s)
                                      (replace-string (char-to-string 13) ""
                                                      nil (point-max) (point-min))
                                      (setq jw-gopher-ready t))))
        (let ((how-long 0)
              (too-long 10))
          (while (and (not jw-gopher-ready) (< how-long too-long))
            (sit-for 0.25)
            (setq how-long (+ how-long 0.25))))
        (get-buffer-create "*jw-get-gopher*"))))

joneworlds@mailbox.org writes:

> This function below has been serving me well.  I guess it might work
> for gemini too, with some changes.
>
> You'll see how you give it an address and it saves the results into a
> buffer.
>
> Let me know how it goes?

Thank you. I have been busy with another project, but am looking at this now. It seems like this could work, but I need to expanded the response processor to deal with Gemini's various response codes. I didn't have enough time during today's lunch break to launch into that.

I am still curious to know if a little tweak could make my simpler, higher-level code work. I saw the function elpher-address-from-url in your coded, so I added it to mine:

```
(defun my-elpher-download-test ()
  (elpher-visit-page
   (elpher-address-from-url "gemini://gem.librehacker.com")
   (lambda (data mime)
     (let ((coding-system-for-write 'binary))
       (with-temp-file "~/Downloads/somefile.gmi"
           (insert data))))))
```

But this fails with

```
(wrong-type-argument sequencep #s(url :type "gemini" :user nil :password nil :host "gem.librehacker.com" :portspec nil :filename "/" :target nil :attributes nil :fullness t :silent nil :use-cookies t :asynchronous t))
```

I see in the backtrace that elpher-visit-page passes my address to "elpher-page-address", but elpher-page-address seems to want a sequence, not the hash returned by elpher-address-from-url. docstrings says elpher-page-address wants a "PAGE" but I'm not sure what data structure that is or how to construct it.

-- 
Christopher Howard

> Let me know how it goes?
>

Here is an update on my progress:

gemini://gem.librehacker.com/gemlog/starlog/20250217-0.gmi

-- 
Christopher Howard