njlr

#include <iostream>

int main() {
  std::cout << "\e[31m" << "Hello" << "\e[0m" << World" << std::endl;
  return 0;
}

njlr

unsigned const terminalWidth = 80;

int main() {
  VirtualTerminal vt;

  auto const fancyCounter = [](auto start, auto end, auto i) -> FlowLayout<> {
    return {
      Text("counting from "), Text({ Font::Bold }, start), 
      Text(" to "), Text({ Font::Bold }, end),
      Text(": i="), Text({ FgColor::Red, Font::Underline }, i) 

njlr

counting from 1 to 10: i=1 [#_________]
counting from 1 to 10: i=2 [##________]
counting from 1 to 10: i=3 [###_______]
counting from 1 to 10: i=4 [####______]
counting from 1 to 10: i=5 [#####_____]

njlr

// Pseudo-code
function updateProgressBar() {
  print (eraseCharEscapeCode * lastProgressBarLength);
  print (‘#’ * progressBarLength);
  lastProgressBarLength = progressBarLength;
}

njlr

curl http://www.openss7.org/repos/tarballs/strx25-0.9.2.1.tar.bz2 > /dev/null

njlr

auto progressbar = rx::observable<>::from(
  rxcpp::interval(std::chrono::milliseconds(250))
    .take_until([](auto x) { return x > 100; })
    .map([](auto x) { return x / 100.0;})
    .map(Progressbar);

auto app = rx::observable<>::zipWith(
  rx::observable<>::just<Text>("progressbar example"),
  progressbar,
  stackLayout);

njlr

buckaroo install boost/asio

njlr

A requires B
A requires C
B requires D
C requires D

njlr

A v1
B v1
C v2

njlr

A v1 requires B v1
A v1 requires C v2
B v1 requires C v1–3