swuecho

dashboard "Food":
  - h1 text: Food
  - h2 text: By caloric content
  - 3 columns:
    - rows:
      - h3 text: Bananas
      - pie chart: {
          "columns": [
            ["Protein", 5], ["Sugar", 10], ["Other carbs", 40], ["Fat", 1]
          ]

swuecho

dashboard "Food":
  - h1 text: Food
  - h2 text: By caloric content
  - 3 columns:
    - rows:
      - h3 text: Bananas
      - pie chart: {
          "columns": [
            ["Protein", 5], ["Sugar", 10], ["Other carbs", 40], ["Fat", 1]
          ]

swuecho

use std::str::FromStr;

fn main () {
    let mut input = "15 Bear".split(' ');
    // Need to pull the number and parse it.
    let number = input.next()
        // Process Option<&'static str> to Option<int>
        .and_then(|x| i32::from_str(x).ok() )
        .expect("Was not provided a valid number.");
    // The next token is our animal.

swuecho

fn main () {
    let number: f64 = 20.;
    // Perform a pipeline of options.
    let result = Some(number)
        .map(inverse) // Described below.
        .map(double)
        .map(inverse)
        .and_then(log) // Described below.
        .map(square)
        .and_then(sqrt);

swuecho

Prelude> (fmap . const)  1  [1..5]
[1,1,1,1,1]
Prelude> fmap . const  1  [1..5]

<interactive>:29:1: error:
    • Non type-variable argument in the constraint: Num (a1 -> a -> b)
      (Use FlexibleContexts to permit this)
    • When checking the inferred type
        it :: forall b a (f :: * -> *) a1.
              (Num (a1 -> a -> b), Functor f) =>

swuecho

[[snippets]]
  description = "list all files "
  command = "ls -lah"

swuecho

% Let's build a binary tree!

Let's build a binary tree of strings in Rust. To recap, each node in a binary tree:

1. must have a value
2. may or may not have left and/or right children

So we can describe a single node like this:

swuecho

#!/usr/local/bin/perl

package MyAnalyzer {
use v5.10;
use base qw( Lucy::Analysis::Analyzer );

sub new {
    my $self = shift->SUPER::new;
    return $self;
}

swuecho

https://godbolt.org/g/cmHlPR

swuecho

import subprocess

def system(cmd):
    """
    Invoke a shell command.
    :returns: A tuple of output, err message and return code
    """
    ret = subprocess.Popen(cmd, shell=True, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, close_fds=True)
    out, err = ret.communicate()
    return out, err, ret.returncode