Reading and Writing Buffers in Practice Learning Emacs Lisp 5

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=J7d2LmivyyM

In this video, we'll work on a practical example of writing Emacs Lisp to read and write contents of buffers! We continue the work on our dotfiles management package, now called dotcrafter.el , to add the ability to extract all tangled configuration paths from our Org Mode files and then write out those paths to the '.gitignore' file of the dotfiles repository. • We cover the following topics: • 0:00 Intro • 0:38 Why learn about buffers? • 2:15 What will we learn? • 5:12 What is a buffer? • 7:01 Getting the current buffer • 8:02 Getting a buffer by name • 9:41 Changing the current buffer • 10:37 Changing the current buffer safely! • 13:55 Working with file buffers • 17:36 Example: Getting the buffers for our configuration Org files • 20:38 Loading a file into a buffer • 22:27 Example: Getting or creating the Org file buffer • 24:44 What's the point? • 28:21 Moving the point • 32:45 Preserving the point • 33:41 Examining buffer text • 36:26 The Thing (thing-at-point) • 39:45 Searching for text • 43:24 Example: Finding Org code block output paths • 50:02 Inserting text • 52:00 Example: Updating the .gitignore file • 57:31 Deleting text • 58:31 Saving a buffer • 59:09 Example: Cleaning up and saving the .gitignore file • 1:00:35 What's next? • 1:01:50 Sponsors and outro • The package code from this episode can be found here: • https://github.com/daviwil/dotcrafter... • The show notes can be found here: https://github.com/daviwil/emacs-from... • My Emacs configuration: https://github.com/daviwil/dotfiles/b... • If you enjoy this series, please consider becoming a sponsor on GitHub or Patreon: • https://github.com/sponsors/daviwil • / systemcrafters • You can also leave a tip via PayPal: https://paypal.me/daviwil • Follow me on Twitter for more Emacs content! • / systemcrafters • Chat with the System Crafters community on Discord: / discord • Intro music: Coriolis Effect by logos feat. stefsax, licensed CC-BY • http://ccmixter.org/files/mseq/26296

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