jorendorff

Socket and channel setup

todo

Server receives a message

• received first by the OS
• then by websocket server code we don't control
• eventually handed over to us
• we parse the message enough to figure out the topic

jorendorff

import unicodedata


# Unique value meaning "not finished parsing"
class TimedOut:
    def __repr__(self): return "TimedOut"
TimedOut = TimedOut()


BASIC_ESCAPES = {

jorendorff

function SaferHTML(templateData) {
  var s = templateData[0];
  for (var i = 1; i < arguments.length; i++) {
    var arg = String(arguments[i]);

    // Escape special characters in the substitution.
    s += arg.replace(/&/g, "&amp;")
            .replace(/</g, "&lt;")
            .replace(/>/g, "&gt;");

jorendorff

Writing template strings in Markdown

With template strings coming to ES6, the backtick (`) means something in Markdown and in JavaScript. If you write this:

To display a message, write `alert(`hello world!`)`.

it'll render like this:

To display a message, write alert(hello world!).

jorendorff

use serde::Deserialize;
use actix_web::{web, App, HttpResponse, HttpServer};

fn gcd(mut n: u64, mut m: u64) -> u64 {
    assert!(n != 0 && m != 0);
    while m != 0 {
        if m < n {
            let t = m;
            m = n;
            n = t;

jorendorff

// Taken from http://dxr.mozilla.org/mozilla-central/source/js/xpconnect/tests/chrome/test_xrayToJS.xul

    ...

    // Test constructors that can be instantiated with zero arguments.
    for (var c of simpleConstructors) {
      ok(iwin[c], "Constructors appear: " + c);
      is(iwin[c], Cu.unwaiveXrays(iwin.wrappedJSObject[c]),
         "we end up with the appropriate constructor: " + c);
      is(Cu.unwaiveXrays(Cu.waiveXrays(new iwin[c]).constructor), iwin[c],

jorendorff

Before:

    // Test constructors that can be instantiated with zero arguments.
    for (var c of simpleConstructors) {
      ok(iwin[c], "Constructors appear: " + c);
      is(iwin[c], Cu.unwaiveXrays(iwin.wrappedJSObject[c]),
         "we end up with the appropriate constructor: " + c);
      is(Cu.unwaiveXrays(Cu.waiveXrays(new iwin[c]).constructor), iwin[c],
         "constructor property is set up right: " + c);
      let expectedProto = /Opaque/.test(new iwin[c]) ? iwin['Object'].prototype

jorendorff

On Tue, Apr 7, 2015 at 4:54 PM, Brendan Eich <brendan@mozilla.org> wrote:
> BT: we found several sites that are broken by the new function.name
> algorithm. [...]
>
> [...]
>
> ARB: which is one of these webpages?
>
> BT: cheezburger.com, the comments won't load.
>

jorendorff

for (VAR of ITERABLE)
  STATEMENT

----

var $iterator = (ITERABLE)[Symbol.iterator]();
var $skipReturn;
try {
    while (true) {
        $skipReturn = true;

jorendorff

// *** Before *****************************************************************
// The program operated on a large document tree (DOM-like, but not exactly DOM).
// It had several functions that needed to walk the entire tree,
// which was done with recursion, like this:

function stripGrammar(doc) {
    ...
    function visit(parent) {
        for (var [i, child] of parent.content.entries()) {
            if (typeof child === "object") {