bokwoon95

I recently happened upon a very interesting implementation of popen() (different API, same idea) called popen-noshell using clone(2), and so I opened an issue requesting use of vfork(2) or posix_spawn() for portability. It turns out that on Linux there's an important advantage to using clone(2). I think I should capture the things I wrote there in a better place. A gist, a blog, whatever.

This is not a paper. I assume reader familiarity with fork() in particular and Unix in general, though, of course, I link to relevant wiki pages, so if the unfamiliar reader is willing to go down the rabbit hole, they should be able to come ou

Rich Already Answered That!

A list of commonly asked questions, design decisions, reasons why Clojure is the way it is as they were answered directly by Rich (even when from many years ago, those answers are pretty much valid today!). Feel free to point friends and colleagues here next time they ask (again). Answers are pasted verbatim (I've made small adjustments for readibility, but never changed a sentence) from mailing lists, articles, chats.

How to use:

The link in the table of content jumps at the copy of the answer on this page.
The link on the answer itself points back at the original post.

Table of Content

RE: RE: gh-ost

Hi Shlomi,

First of all, my apologies for the tone of my original post. It was written without much reflection, and reading back through it, I see that it does in

Regular Expression Engine Comparison Chart

Many different applications claim to support regular expressions. But what does that even mean?

Well there are lots of different regular expression engines, and they all have different feature sets and different time-space efficiencies.

The information here is just copied from: http://regular-expressions.mobi/refflavors.html

Use curl to get the JSON response for the latest release
Use grep to find the line containing file URL
Use cut and tr to extract the URL
Use wget to download it

curl -s https://api.github.com/repos/jgm/pandoc/releases/latest \
| grep "browser_download_url.*deb" \
| cut -d : -f 2,3 \
| tr -d \" \

	mkdir $HOME/.terminfo/ && \
	screen_terminfo="screen-256color" && \
	infocmp "$screen_terminfo" \| sed \
	-e 's/^screen[^\|]\|[^,],/screen-256color\|screen with italics support,/' \
	-e 's/%?%p1%t;3%/%?%p1%t;7%/' \
	-e 's/smso=[^,]*,/smso=\\E[7m,/' \
	-e 's/rmso=[^,]*,/rmso=\\E[27m,/' \
	-e '$s/$/ sitm=\\E[3m, ritm=\\E[23m,/' > /tmp/screen.terminfo && \
	tic /tmp/screen.terminfo && \
	echo set -g default-terminal "screen-256color" \| tee -a ~/.tmux.conf

	package main

	import (
	"fmt"
	"reflect"
	)

	type Test struct {
	Name string
	}

	#!/bin/bash

	# Tom Hale, 2016. MIT Licence.
	# Print out 256 colours, with each number printed in its corresponding colour
	# See http://askubuntu.com/questions/821157/print-a-256-color-test-pattern-in-the-terminal/821163#821163

	set -eu # Fail on errors or undeclared variables

	printable_colours=256

	# https://en.wikibooks.org/wiki/Introducing_Julia/Types

	level = 0
	function showtypetree(subtype)
	global level
	subtypelist = filter(asubtype -> asubtype != Any, subtypes(subtype))
	if length(subtypelist) > 0
	println("\t" ^ level, subtype)
	level += 1
	map(showtypetree, subtypelist)

	@echo off

	setlocal
	call :setESC

	cls
	echo %ESC%[101;93m STYLES %ESC%[0m
	echo ^<ESC^>[0m %ESC%[0mReset%ESC%[0m
	echo ^<ESC^>[1m %ESC%[1mBold%ESC%[0m
	echo ^<ESC^>[4m %ESC%[4mUnderline%ESC%[0m