waf

// 
// C# 8 port of F# brace matching.
//
using System;
using System.Linq;
using Microsoft.VisualStudio.TestTools.UnitTesting;

namespace BraceMatching
{
    using ParseState = Nullable<int>; // we get to cheat a bit because the C# compiler will "map" over nullable types implicitly

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<!--
    Quick instructions below, see full, detailed instructions here: 
    https://github.com/joonro/ConEmu-Color-Themes/blob/master/README.org#how-to-install

    To install this ConEmu theme, add it to C:\Users\USER\AppData\Roaming\ConEmu.xml:

    ...
    <key name="Colors" modified="2018-10-08 22:42:53" build="180503">
        <value name="Count" type="long" data="1"/>
        ... paste the xml tag here and increment the above count...

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Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\ContentDeliveryManager]
"SilentInstalledAppsEnabled"=dword:00000000

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using System;
using System.Linq;
using System.Runtime.CompilerServices;

namespace Scratch
{
    class Program
    {
        static void Main(string[] args)
        {

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class Program
{
    const int trials = 1_000_000;

    static void Main(string[] args)
    {
        Dictionary<int, string> dict = Enumerable
            .Range(1, 10)
            .ToDictionary(number => number, number => number.ToString());

waf

What is parsing?
    Turning text (or some other stream of bytes) into a more useful format
        - Turning strings into JSON objects
        - Turning bytes into TCP packet structs
        - Turning strings into some C# object hierarchy

Levels of parsing:
    0 - avoid it -- use some standard format and library (json, xml, etc)
    1 - string indexOf / split
    2 - regex

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{
    "iPad": {
        "deviceScaleFactor": 2,
        "mobile": true,
        "height": 1024,
        "width": 768,
        "touch": true,
        "userAgent": "Mozilla/5.0 (iPad; CPU OS 9_1 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13B143 Safari/601.1"
    },
    "Laptop with touch": {

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-- Counter app, count up in 30 seconds increments, and
-- then count down the last 10 seconds
module Main
import System

-- given a second, what should we say at that second?
sayWhatAt : Int -> String
sayWhatAt 30 = "30 seconds passed"
sayWhatAt 60 = "1 minute passed"
sayWhatAt seconds =

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# main entry point
function Main
{
    $total = 60 * 2 + 58
    $timings = Generate-Timings -Total $total
    Speak-Timings $timings
}

# int -> string[]
# generates an array of strings representing what should be said at each second.

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Add-Type -AssemblyName System.Speech; 

$synth = (New-Object System.Speech.Synthesis.SpeechSynthesizer)
$synth.SelectVoice("Microsoft Zira Desktop")

# speak the text, blocking the current thread
function Speak($text)
{
    $synth.Speak($text)
}