notes at http://xahlee.info/talk_show/xah_talk_show_2022-08-04.html
what's regex
why not wildcard (glob)
simple example of regex
emacs regex, by interactive command, or in emacs lisp. there are different.
emacs regex commands. best way to test regex.
emacs regex syntax basics.
regex in emacs lisp.
best way to test regex in emacs lisp.
ways to convert regex from command to emacs lisp string.
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https://www.youtube.com/watch?v=VBGvGFmo1ps
demo of using google code prettify js, and showing alternative in emacs, and workflow, text processing on html.
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https://www.youtube.com/watch?v=ml7V_OnBAOk