Xah Talk Show 2025-05-18 Ep657 emacs lisp generic map functions (hashtable, associative list, property list), Google HTTPS censor

Emacs lisp map- functions

• Elisp: Lisp Basics

write tutorial, look into if pre loaded, check emacs news file to see when.

• Emacs: Xah Fly Keys 📦

• Emacs Version History
• Emacs 25 (date 2016)

• Emacs: Setup Hundreds of Abbrevs
• Elisp: Abbrev Table
• Elisp: Hash Table

• map-apply
• map-contains-key
• map-copy
• map-delete
• map-do
• map-elt
• map-empty-p
• map-every-p
• map-filter
• map-insert
• map-into
• map-keys
• map-keys-apply
• map-length
• map-let
• map-merge
• map-merge-with
• map-nested-elt
• map-pairs
• map-put
• map-put!
• map-remove
• map-some
• map-values
• map-values-apply

• first, when is it created. emacs 25.
• add them to xah emacs lisp mode
• add function templates, to xah emacs lisp mode

(defvar x-alist nil "asso list")

(setq x-alist
      (list
       (cons 1 2)
       (cons 3 4)
       (cons 5 6)))

(map-apply
 (lambda (aa bb) (format "%s,%s" aa bb))
x-alist)
;; ("1,2" "3,4" "5,6")

• Emacs: Setup Hundreds of Abbrevs

i have one cat
how are you
are you
by the way

→
a → b

😃 😄 😅 😂 🤩
😬 🤡 🤗 😠 😮 😒 😑
⭐ 🌟 💯 👍 ❤ 🧡 🚀 💪🏼
👀 🙏
❓ ⭕ ❌ ✅ 👎
💀 💨 🔥 🪷

Forcing HTTPS Issue

• Why Not https?
• Firefox Forces HTTPS (2025-03)

• China ISP Ad Injection (2015)

• forcing https, by firefox and Google Chrome browser
• YouTube also changed link to tracking link.

on forcing https issue.
YouTube's actual link is this

<a class="yt-core-attributed-string__link yt-core-attributed-string__link--call-to-action-color" tabindex="0" href="https://www.youtube.com/redirect?event=video_description&redir_token=QUFFLUhqbVp2N00xNDl4MDNsSkY1SjYwUnBwcldxUHRhQXxBQ3Jtc0ttYkZKZkc2Z3lZWjJlcFpqVGI2eUFBdUh5VHExZnNJczdBRGZEVWlFTFM2MTloTFBDS3hvb0I3RUdMZXdaMlY0a1pLYXA0YnhubHRmSmZxZ3hNOFJjTUFqZGRnVmMxWWs5MFRZTzR1a3Iwd2ZtWkhTNA&q=http%3A%2F%2Fxahlee.info%2Ftalk_show%2Fxah_talk_show_2025-05-15.html&v=cDXdJwEjKFU" rel="nofollow" target="_blank" force-new-state="true">http://xahlee.info/talk_show/xah_talk...</a>

a remedy for this tracking is to post url as plain text and add space after the http and add space in domain name, like this

http : // xahlee. info /talk_show/xah_talk...

link works fine.

Wolfram language animation export to gif

• Epitrochoid and Hypotrochoid Animation Gallery

UHK 80