notriddle

// need to escape specials
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Regular_expressions
const REGEX_SPECIALS = /[\$\(\)\*\+\.\/\?\[\\\]\^\{\|\}]/;
class EditDistanceCalculator {
	constructor(string, limit) {
		this.string = string;
		this.current = [];
		this.prev = [];
		this.prevPrev = [];
		this.matcherRegExp = new RegExp("^" + this.buildMatcherRegExp(string, limit) + "$");

notriddle

Introduction

Note: this is not a policy doc. At least, not yet.

This is a pile of notes that should probably be integrated into the rustc-dev-guide at some point. These roles, at least for me, inform where and how I've designed features and pages in rustdoc.

With these roles written down, I'm going to try to avoid referring to a "rustdoc user" most of the time, because that's not usually specific enough. Rustdoc has three interfaces, with three different audiences, who, sometimes, overlap.

notriddle

My [cmark-gfm][^c].

My [cmark-gfm][cmark-gfm][^c].

My [cmark-gfm][][^c].

My [cmark-gfm] [^c].

My [cmark-gfm[^c]].

notriddle

Songs that simply loop are a popular way to annoy people. ¹

• I know a song that gets on everybody's nerves
• Ninety-nine bottles of beer on the wall

Songs that simply loop are a popular way to annoy people. ²

Footnotes

1. • The song that never ends
   ↩
2. • The song that never ends 2
   ↩

notriddle

Footnotes ¹ [^many].

Footnotes

1. first paragraph inside footnote ↩

notriddle

#!/bin/bash

print-usage-and-die() {
	echo "Usage: diffpkg.bash [cargo|npm] [pkg1] [pkg2]"
	echo "       pkg1 and pkg2 can have formats NAME-VERS, NAME@VERS, NAME:VERS, or NAME=VERS"
	exit 1
}

extract-name() {
	case "$1" in

notriddle

By "rustdoc", I mean the API documentation webapp used by Rust. The Book is rendered using a different application, called mdBook, and only some of this advice is really applicable to it.

I hope you take my copycat txties as the compliment that I intend, by the way.

Step 1: get the rust toolchain

The first step is to get the Rust code. To help compare the old version with the new one, I set up a separate worktree for the new version, and keep the old version around. It's a lot like cloning the repository twice, but it doesn't require two downloads.

user=notriddle

cd ~/Development

notriddle

#!/bin/sh
# The first step is to get a list of robot IP addresses
# We stash it in a file for later
awk -F' ' '/robots.txt/ {print $1}' /var/log/nginx/access.log.1 | sort | uniq > robots-ips.txt
# Also add a few known bots that don't necessarily get robots.txt from the same IP
grep -iE '(bingbot|BingPreview|msnbot|adbeat|ArchiveBot|YandexBot|Googlebot|Pinterestbot|Spider)' /var/log/nginx/access.log.1 | awk -F' ' '{print $1}' | sort | uniq > robots-ips.txt                                                                                                                   # The second step is to get a list of non-robot IP addresses
# This one is comparatively complicated, so let's dissect my awk syntax
#  NR==FNR -- FNR is the line number ("record number") in the current file, while NR is the line number processed in total. If these are equal, then we're on the current file.                                                                 #  {a[$1]=1;next} -- we want to load the robots-ips.txt file into an array, a

notriddle

@notriddle's Rust 2020 wishlist

or, Rust 2021: Integration

This is just a brain dump. Doing all of this is not going to happen, but all of it is stuff I know of that impacts Rust's integration with the rest of the world and eventually becoming Too Big To Fail like C++ is.

Better resources outside the Rust core team's reach

1. Improved support for vendored, external, and non-crates.io crates. Some of it is just a matter of documenting the workarounds to allow cargo to use local git repositories in place of networked ones. Some of it is providing official, documented registry software.
2. Improved support for third-party discussion and documentation platforms. I love Users and Internals, and I can deal with Discord, but these are platforms specifically for discussing Rust. What we need is greater presence on platforms that are dedicated to problem domains: database courses

notriddle

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD