| Lisp interpreter in 90 lines of C++ | |
| I've enjoyed reading Peter Norvig's recent articles on Lisp. He implements a Scheme interpreter in 90 lines of Python in the first, and develops it further in the second. | |
| Just for fun I wondered if I could write one in C++. My goals would be | |
| 1. A Lisp interpreter that would complete Peter's Lis.py test cases correctly... | |
| 2. ...in no more than 90 lines of C++. | |
| Although I've been thinking about this for a few weeks, as I write this I have not written a line of the code. I'm pretty sure I will achieve 1, and 2 will be... a piece of cake! |
| #!/bin/sh | |
| if [ "$#" -eq 1 ]; then stdinmsg=$(cat); fi | |
| exec <"$0" || exit; read v; read v; read v; exec /usr/bin/osascript - "$@" "$stdinmsg"; exit | |
| -- another way of waiting until an app is running | |
| on waitUntilRunning(appname, delaytime) | |
| repeat until my appIsRunning(appname) | |
| tell application "Messages" to close window 1 | |
| delay delaytime | |
| end repeat |
| (ns express | |
| "Ligweight interface to requirejs." | |
| (:refer-clojure :exclude [set get]) | |
| (:require [cljs.nodejs :as node])) | |
| ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| ;; Constants | |
| ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; | |
| (def ^{:doc "Global express import." |
As of IPython 5, readline is no longer used to interpret keystrokes.
Instead, the pure-python library prompt_toolkit is used.
Getting vim mode in IPython is straightforward. First, edit
~/.ipython/profile_default/ipython_config.py
and add the following line:
c.TerminalInteractiveShell.editing_mode = 'vi'
| node: Platform built on V8 to build network applications | |
| git: Distributed revision control system | |
| wget: Internet file retriever | |
| yarn: JavaScript package manager | |
| python3: Interpreted, interactive, object-oriented programming language | |
| coreutils: GNU File, Shell, and Text utilities | |
| pkg-config: Manage compile and link flags for libraries | |
| chromedriver: Tool for automated testing of webapps across many browsers | |
| awscli: Official Amazon AWS command-line interface | |
| automake: Tool for generating GNU Standards-compliant Makefiles |
Here's a list of mildly interesting things about the C language that I learned mostly by consuming Clang's ASTs. Although surprises are getting sparser, I might continue to update this document over time.
There are many more mildly interesting features of C++, but the language is literally known for being weird, whereas C is usually considered smaller and simpler, so this is (almost) only about C.
struct foo {
struct bar {
int x;This guide is for achieving PCI-Passthrough with Intel 7700k and AMD RX 580. My host OS is Manjaro KDE edition, and guest is Windows 10.
| Device Type | Device |
|---|---|
| CPU | Intel Core i7-7700K |
| Motherboard | ASUS Prime Z270P |
| RAM | Corsair Vengeance (DDR4 3000 MHz) |
| GPU (Host) | Intel HD Graphics |
| <body onload=z=c.getContext`2d`,setInterval(`c.width=W=150,Y<W&&P<Y&Y<P+E|9<p?z.fillText(S++${Y=`,9,9|z.fillRect(p`}*0,Y-=--M${Y+Y},P+E,9,W),P))):p=M=Y=S=6,p=p-6||(P=S%E,W)`,E=49) onclick=M=9><canvas id=c> |
| hs.loadSpoon('SpoonInstall') | |
| spoon.SpoonInstall.use_syncinstall = true | |
| Install = spoon.SpoonInstall | |
| log = hs.logger.new('init', 5) | |
| -- function debugUI(msg, table) | |
| -- log:d(msg) | |
| -- log:d(hs.inspect(table)) | |
| -- end |
