tsujp

This project is a tiny compiler for a very simple language consisting of boolean expression.

The language has two constants: 1 for true and 0 for false, and 4 logic gates: ! (not), & (and), | (or), and ^ (xor).

It can also use parentheses to manage priorities.

Here is its grammar in BNF format:

expr ::= "0" | "1"

tsujp

Answer by Jim Dennis on Stack Overflow question http://stackoverflow.com/questions/1218390/what-is-your-most-productive-shortcut-with-vim/1220118#1220118

Your problem with Vim is that you don't grok vi.

You mention cutting with yy and complain that you almost never want to cut whole lines. In fact programmers, editing source code, very often want to work on whole lines, ranges of lines and blocks of code. However, yy is only one of many way to yank text into the anonymous copy buffer (or "register" as it's called in vi).

The "Zen" of vi is that you're speaking a language. The initial y is a verb. The statement yy is a simple statement which is, essentially, an abbreviation for 0 y$:

0 go to the beginning of this line. y yank from here (up to where?)

tsujp

// =============================================================================
// XNU kperf/kpc demo
// Available for 64-bit Intel/Apple Silicon, macOS/iOS, with root privileges
//
//
// Demo 1 (profile a function in current thread):
// 1. Open directory '/usr/share/kpep/', find your CPU PMC database.
//    For M1 (Pro/Max), the database file is '/usr/share/kpep/a14.plist'.
// 2. Select a few events that you are interested in,
//    add their names to the `profile_events` array below.

tsujp

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

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

tsujp

#!/bin/sh

##
# This is a script with usefull tips taken from:
#   https://github.com/mathiasbynens/dotfiles/blob/master/.osx
#
# Run in interactive mode with:
#   $ sh -c "$(curl -sL https://raw.github.com/gist/2108403/hack.sh)"
#
# or run it without prompt questions:

tsujp

# install
mkdir ~/macports
cd ~/macports
curl -O https://distfiles.macports.org/MacPorts/MacPorts-2.5.3.tar.bz2
tar xf MacPorts-2.5.3.tar.bz2
cd MacPorts-2.5.3/

./configure --enable-readline --prefix=$HOME/macports --with-no-root-privileges
make && make install

tsujp

# to add to your ~/.bashrc or your ~/.zshrc file. Usage: $ go switch 1.18.1
function go() {
  case $* in
    switch* )
        shift 1
        gobindir=$(go env GOBIN)
        # adapt to a valid directory at the beginning of your $PATH if you're not on systemd
        homebindir=$(systemd-path user-binaries)
        go install golang.org/dl/go"$@"@latest
        $gobindir/go"$@" download

tsujp

#!/usr/bin/env bash

# get a random-character password
# First argument is password length
# Can override the default character set by passing in PWCHARSET=<charset> as env
randompass() {
  # globbing & history expansion here is a pain, so we store its state, temp turn it off & restore it later
  local maybeglob="$(shopt -po noglob histexpand)"
  set -o noglob # turn off globbing
  set +o histexpand # turn off history expansion

tsujp

Fibonacci - Crystal vs OCaml vs Go

Crystal

Program: fibonacci.cr

def fibonacci(n)
  return n if n < 2
  fibonacci(n - 1) + fibonacci(n - 2)

tsujp

BEGIN MESSAGE.
30XG4ydCCDCy1TU aerjE5KOdSpVcVe d3BdA8Vfc2BbPvz 3wtf74afXprZfb5
z2tMC105qULZLzq AopZqPXqfZJTCKq 6Xr2MZHgg6lW1An k9MR21AMRunYgwx
OXQZwFFoPDNBhGO gWFrbnGDNWKaysD AUdHpFdu1dd22VH nfuDsafRbKPHvJv
BvC8S3j9D5hzpEu 57p7VzgABIHlKpa 7SBQr.
END MESSAGE.