sogaiu

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

Ctrl-Key: ^[
Octal: \033
Unicode: \u001b
Hexadecimal: \x1B
Decimal: 27

echo -e "testing \033[48;5;88mCOLOR1\033[38;208;48;5;159mCOLOR2\033[m"

The color range of a 256 color terminal consists of 4 parts, often 5, in which case you actually get 258 colors:

Color numbers 0 to 7 are the default terminal colors, the actual RGB value of which is not standardized and can often be configured.
Color numbers 8 to 15 are the "bright" colors. Most of the time these are a lighter shade of the color with index - 8. They are also not standardized and can often be configured. Depending on terminal and shell, they are often used instead of or in conjunction with bold font faces.
Color numbers 16 to 231 are RGB colors. These 216 colors are defined by 6 values on each of the three RGB axes. That is, instead of values 0 - 255, each color only ranges from 0 - 5.

Move/Copy/Borrow Semantics in Programming

Or, ramblings and complaints about the general state of programming and other possibly related grievances.

There are 3 primary ways to pass data into functions: move, copy, or borrow (aka a reference). Since mutability is inherently intertwined with data passing (this function can borrow my data, but only if they promise not to mess with it), we end up with 6 distinct combinations.

Move, Copy, Borrow, Mutable, Immutable

Every language has its own level of support and take on these semantics:

The original website containing this interview has disappeared. I've googled a bit to find this transcript. I'm saving it myself to provide another link to the great interview and preserve it.

Rich Hickey Q&A by Michael Fogus

Best known as the inventor of Clojure, a Lisp that runs on the Java Virtual Machine and the first new member of the Lisp family to attract any widespread interest since Scheme and Common Lisp, Rich Hickey has been a software developer and consultant for two decades.

Prior to starting work on Clojure, he made four attempts to combine Lisp with either Java or Microsoft’s Common Language Runtime: jfli, Foil, Lisplets, and DotLisp but Clojure was the first to draw significant attention. To date there have been four books published on Clojure, including The Joy of Clojure by interviewer Michael Fogus. The first Clojure conference, ClojureConj held in 2010, drew over two hundred attendees. And the Clojure Google group has, as of this writing, 4,880 members who have posted over 46,000 mes

Rich Already Answered That!

A list of commonly asked questions, design decisions, reasons why Clojure is the way it is as they were answered directly by Rich (even when from many years ago, those answers are pretty much valid today!). Feel free to point friends and colleagues here next time they ask (again). Answers are pasted verbatim (I've made small adjustments for readibility, but never changed a sentence) from mailing lists, articles, chats.

How to use:

The link in the table of content jumps at the copy of the answer on this page.
The link on the answer itself points back at the original post.

Table of Content

People

`:bowtie:`	😄 `:smile:`	😆 `:laughing:`
😊 `:blush:`	😃 `:smiley:`	☺️ `:relaxed:`
😏 `:smirk:`	😍 `:heart_eyes:`	😘 `:kissing_heart:`
😚 `:kissing_closed_eyes:`	😳 `:flushed:`	😌 `:relieved:`
😆 `:satisfied:`	😁 `:grin:`	😉 `:wink:`
😜 `:stuck_out_tongue_winking_eye:`	😝 `:stuck_out_tongue_closed_eyes:`	😀 `:grinning:`
😗 `:kissing:`	😙 `:kissing_smiling_eyes:`	😛 `:stuck_out_tongue:`

	{:paths ["." "src" "test"]
	:deps {expound {:mvn/version "0.8.4"}
	clansi {:mvn/version "1.0.0"}
	cider/cider-nrepl {:mvn/version "0.24.0"}
	refactor-nrepl {:mvn/version "2.5.0"}
	com.bhauman/rebel-readline {:mvn/version "0.1.4"}}}

	; A REPL-based, annotated Seesaw tutorial
	; Please visit https://github.com/daveray/seesaw for more info
	;
	; This is a very basic intro to Seesaw, a Clojure UI toolkit. It covers
	; Seesaw's basic features and philosophy, but only scratches the surface
	; of what's available. It only assumes knowledge of Clojure. No Swing or
	; Java experience is needed.
	;
	; This material was first presented in a talk at @CraftsmanGuild in
	; Ann Arbor, MI.

	;;;; pretty-literals.lisp - pretty hash table & vector literal syntax
	;;;; inspired by and uses code from http://frank.kank.net/essays/hash.html

	(in-package #:pretty-literals)

	;; vector literal syntax using brackets
	(set-macro-character #\[
	(lambda (str char)
	(declare (ignore char))
	(let ((readtable (copy-readtable readtable nil))

	{:deps {org.clojure/clojure {:mvn/version "1.10.0"}
	com.taoensso/nippy {:mvn/version "2.14.0"}
	org.apache.commons/commons-compress {:mvn/version "1.18"}}}