| require 'io/console' | |
| # Reads keypresses from the user including 2 and 3 escape character sequences. | |
| def read_char | |
| STDIN.echo = false | |
| STDIN.raw! | |
| input = STDIN.getc.chr | |
| if input == "\e" then | |
| input << STDIN.read_nonblock(3) rescue nil |
I am going to have a look at what William Byrd presented as The most beautiful program ever written.
Beauty here refers to computer programs, specifically about Lisp. There might be errors as this is something I wrote to make sense of that interpreter, proceed at your own risk.
Thanks a lot to Carl J. Factora for the help.
This is a collection of bash commands that builds a Python binary for a specific Linux environment using Docker. Environment variables are used to set default values, e.g. Python version and compile options. Using those environment variables, a HERE-DOC command creates a Dockerfile. Docker then uses the Dockerfile to build the Python binary within a Docker image.
To see what the latest Python version is, visit https://www.python.org/ftp/python/.
Only if you want to use something different from the defaults.
If using a screenreader like VoiceOver for the Mac and you use Reline.readmultiline , for example in a loop , say in a REPL, and you output a string without terminating the line with a newline, funny things happen to your screenreader. Like, it no longer outputs the characters you type.
This can be easily demonstrated using Docker and 2 images: ruby:2.6 and ruby:3.2 In ruby:2.6 and before, the same program 'irb', Ruby's own REPL does not experience this problem. But in Ruby 2.7 and above, irb was changed to use the new Reline module instead of the venerable Readline, a wrapper around the venerable GNU readline library.
See https://github.com/mgdm/htmlq
# define container name
dc_name=htmlq
https://docs.brew.sh/Homebrew-on-Linux
<< 'eof' docker image build --tag homebrew -f- .