Xah Talk Show 2025-08-14 Ep692 Emacs Lisp Find Replace Greek Chars, Multiple Pairs Algorithm, Feedback Loop Problem

• https://youtu.be/UOGFnnyGsZo

rewrite xah-replace-greek-letter-name-to-symbol

• Find Replace Multi-Pairs Feedback Loop Problem

• we want to do find replace multi pairs. each find string is not regex.
• input is a list of pairs, each is find and replace string.

• convert the find strings into a list
• then call regex quote on each
• combine it into a single regex with “or”.
• call re-search-forward in a while loop.
• for each found, replace it by corresponding replace string.
• by checking what's the match string.

if we want to do multi-pair find replace with regex, then we do it sequentially.

• Age of AI (Artificial Intelligence) (2025-08)
• Emacs: xah-replace-pairs.el 📦
• Unicode: Greek Alphabet α β γ
• Elisp: Hash Table
• Emacs: Replace Greek Letter Names to Unicode 📜

you have some greek letters, such as alpha and beta.
suppose you have a angle of theta.

you have some greek letters, such as α and β.
suppose you have a angle of thη η.

you have some greek letters, such as α and β.
suppose you have a angle of θ.