Xah Emacs Blog Archive 2020-05

ELisp: Replace HTML Entities
again, major code update

Xah Talk Show 2020-08-29 emacs lisp, write xah-html-escape-char-to-entity that highlights changed places

Best Keyboards for Emacs

Xah Talk Show 2020-08-26 lisp keyboards, arrow key history, emacs dash problem, open source problem

Emacs, Why You Should Not Use the Package Dash (2020)

Xah Talk Show 2020-08-25 emacs, reaction on try out speedbar and treemacs

Emacs: List All Hooks

Xah Fly Keys Testimonial more

Xah Talk Show 2020-08-21 emacs lisp, write command to highlight text

next online meetup, emacs sf

Thursday, September 3, 2020. 1PM, San Francisco time https://www.meetup.com/Emacs-SF/events/272722964

had a great meetup yesterday, saw Jeff, ag, John Wiegley, Sean, and several ohers. learned a few thing.

Xah Talk Show 2020-08-20 Emacs Lisp. Write Command to Clean Up YouTube Description

emacs 27 george 2020-08-20 W5h4Q
emacs 27 george 2020-08-20 W5h4Q
emacs 27 george 2020-08-21 3bVwW
emacs 27 george 2020-08-21 3bVwW
emacs 27 george 2020-08-21 XgrG8
emacs 27 george 2020-08-21 XgrG8

infamous KickbanXahLeeFromEmacsChannel.htm
cleaned up the HTML.

MELPA URL http://melpa.milkbox.net/packages/ dead

updated in

Xah Talk Show 2020-08-18 Emacs, Manage Project with Projectile

Xah Talk Show 2020-08-17 Emacs Lisp Coding, Display Formfeed as Line

minor updates and repost

Emacs: View Image File

Emacs Init: Mouse Config


Xah Talk Show 2020-08-15, emacs/elisp tutorial, modify youtube linkify accept timestamp

online emacs meetup, hosted by our great Jeff T

Thursday, August 20, 2020 4:00 PM to 6:00 PM San Francisco time


Go there and sign up and Reserve. 20 people is the limit. Also mark your calendar.


Xah Talk Show 2020-08-12, intro to emacs 27 features turned huge rant

emacs tabbar screenshot 2013-04-20
emacs tabbar screenshot 2013-04-20
emacs tabbar mode
emacs tabbar mode

Xah Fly Keys Testimonial more

Xah Talk Show 2020-08-10, emacs, braille, python vs ruby vs perl vs emacs lisp

Xah Talk Show 2020-08-07, emacs lisp youtube-linkify, why shell in emacs, sigil war

Xah Talk Show 2020-08-04, emacs lisp coding, open buffer or link in chrome

GNU Emacs Logo
emacs logo on trackball

The Sigils WAR, Language Design and Coding Convention (2016)

emacs term nano xah fly keys 2020-07-25 JmtNp
emacs running term running nano with xah fly keys 2020-07-25
thanks to dxlr8r

Linus Torvalds: Respect is Earned Not Given (2014)

more Xah Fly Keys Testimonial

more Testimonial on Xah Emacs Tutorial

Xah Talk Show 2020-07-18 gergo keyboard review and keyboard geeking

Emacs: HTML, Make Citation Link
code update. Now link open in new tab.

ELisp: URL to HTML Link + Date
code update. Now link open in new tab.

Xah Talk Show 2020-07-15, emacs lisp command xah-html-remove-list

xah fly keys MELPA file not found fixed

old version of xah fly keys before the key engine change on 2020-04-27 is now linked from xah fly keys home page at Emacs: Xah Fly Keys

it's no longer on github, cuz it's causing file not found install problems.

thanks to @sarthak

new photo

LISP Logo new photos

Testimonial on Xah Emacs Tutorial

you can buy lisp logo stickers. see bottom, refresh: LISP Logo

Emacs: Xah Fly Keys
Fixed Space 3 from delete-other-windows to delete-window. Note, 3 is delete-other-windows.

the lisp logo stickers are gone.

send me your address, i'll mail it to you. I have about 4 of them. My request: you send back a photo of your laptop or device with the sticker on. For usa resident, i sent free. For outside of usa, donation of $5 paypal would be good. paypal to Xah@XahLee.org First come first serve. I'll mail out in about a week.

Emacs: Usability Problems of Letter-Case Changing Commands
code update. Now also do non-Latin, such as Greek γ to Γ

Emacs: Regular Expression
minor update

Emacs: Quote Lines 🚀
code update

Emacs: Unicode Tutorial

ELisp: Chinese Char To Reference Link
code update

Xah Talk Show 2020-06-16 emacs lisp and html coding. etymology and mythology

emacs eww xahlee.info 2020-06-15
emacs eww xahlee.info 2020-06-15

Emacs: Eww Web Browser

ELisp: Save narrow-to-region


xah emacs lisp live coding 2020-06-10. join lines in a text block

ELisp: Get Text Block

Bozhidar Batsov vs SJW, RuboCop (2020-06-10)

ELisp: Call Shell Command
added how to call PowerShell.

Emacs: Insert Random UUID 🚀
major rewrite and code update.

Xah Fly Keys Testimonial
new page

what keyboard did emacs use in 1970s when emacs was TECO? Emacs Meta Key History

new version of emacs tutorial is out. Buy it! Not gonna send update to previous buyers, because last one is just a month ago.

Computer Keyboard Hand Pain, Year 2020 (Left Forearm Hurts)

Emacs: Jump to Previous Position
Major update. by the way, a better way is to split buffer, do stuff, then move cursor back to the other pane, then unsplit.

Emacs: Init File Tutorial
updated basic init file. put it in your Emacs Init File, and life will be good.

Emacs Init: Setup Font
added howto about setting up a font for Chinese characters and emoji.

reader macro and sigil

lisp reader macro 2020-05-27 xcq7p
lisp reader macro 2020-05-27

&option is just the syntax for rest parameters.

(:key1 val1 :key2 val2 ...) are syntax for key value pairs.

@ and $ are just part of name that i use. syntax coloring of them is due to these starting symbol, in Emacs: Xah Elisp Mode (xah-elisp-mode.el)

The technical name for special symbol like ampersan & in &option [see ELisp: Function Parameters (optional, rest)] and colon : in (make-hash-table :test 'equal) [see ELisp: Hash Table], are called reader macro characters. Emacs lisp manual does not have a page explaining lisp reader macro. Elisp does not support user defined reader macro, but has a page about what reader do, on “Read and Print” Read and Print (ELISP Manual) Clojure does not support user defined reader macro neither, but clojure doc does talked about it and has a ton of it, see Clojure Sigils (Magic Characters)

About my use of @ and $, blood has been shed over that.

Xah Talk Show 2020-05-26 Why Tiling Window Manager Sucks

Misc Technical Essays and Non-Technical Essays on Emacs Lisp

some reorganization of index page at Emacs Misc Index

in particular, created two navigation topic groups, one is Misc Technical Essays on Emacs Lisp see bottom of ELisp: Symbol vs String and the other is Non-Technical Essays on Emacs Lisp, see bottom of Which Chapters of Elisp Manual to Read?

There is quite a lot more to do about the reorganization of misc essays i've written in past 16 years. Will do in coming days.

Xah Talk Show 2020-05-23. Which programing language is worth learning? The Future of Lisp

Why emacs lisp haven't become a general purpose language?
on its own page.

Elisp vs Perl: Validate File Links

Emacs: Xah JS Mode (JavaScript)
code minor update.

Xah Talk Show 2020-05-06 how to avoid mouse hand pain, logitech g-hub crap, paradox of optimal keymap, substance vs milen, Candace Owens

Xah Talk Show 2020-05-08 Japanese Keyboards, TRON, M-System, Thumb-Shift, Leopold, Topre

Emacs: Xah Lookup Web (xah-lookup.el)