Xah Talk Show 2024-08-27 Ep579, Web History WHATWG vs W3C Split, Emacs Lisp HTML Convert PNG to JPG

HTML, Lines to List

• Emacs: HTML, Lines to List 🚀

• this command
• xah-html-lines-to-list
• if no selection, it turns each line into a list item.
• if there is a selection, it turns each paragraph into a list item.

we want to modify it so that, to turn each paragraph into list, you call universal-argument first. this is more emacs convention

xah html convert to jpg

• mod xah-html-convert-to-jpg , convert only if jpg is 20% more saving in size

(/ (float 2) (float 3) )

• Elisp: Convert Number, String

• ;; old behavior

• ;; If the new image is bigger, nothing is done.
• ;; Else, replace the link to point to new image, and rename the old image by appending ~orig_png~.

• ;; new behavior
• ;; If the new image saves less than 20% original file size, then nothing is done.