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Regex: Matching a URL

Regex is a helpful tool used for text processing tasks such as searching, replacing, and extracting information from text. It consists of a sequence of characters and special characters that define a search pattern, which can match specific patterns in text. Regular expressions are widely used in programming languages and tools and can greatly simplify complex tasks that would otherwise require great manual effort. Imagine trying to extract every istance of a URL from a 100 page document, and having to "Command-F" each individual URL- sounds terrible and very time consuming, right? Well that's why regexes are here to make your life easier.

Summary

One of the common applications of regex is to match for URLs. URLs have a specific format that can be easily identified using regular expressions. A regular expression for matching URLs typically includes the protocol, domain name, and optionally a path or query parameters. By using regex to match URLs, you can easily extract informati

	HANDY ONE-LINE SCRIPTS FOR AWK 30 April 2008
	Compiled by Eric Pement - eric [at] pement.org version 0.27

	Latest version of this file (in English) is usually at:
	http://www.pement.org/awk/awk1line.txt

	This file will also be available in other languages:
	Chinese - http://ximix.org/translation/awk1line_zh-CN.txt

	USAGE:

	async function asyncSleep(ms) {
	return new Promise(resolve => setTimeout(resolve, ms));
	}

	async function onSearchClick(event) {
	event.preventDefault();

	const cityNameInput = document.getElementById('city-name');
	const cityName = cityNameInput.value;

	import tensorflow as tf, numpy as np, matplotlib.pyplot as plt

	trainable = []

	order = 4

	@tf.custom_gradient
	def poly(x):
	# Create the (or get a handle to the existing existing) polynomial coefficients variable
	# that we're supposed to learn.

	sudo mkdir -p /usr/share/fonts/opentype
	sudo mkdir -p /usr/share/fonts/truetype

	sudo dnf install -y ipa-gothic-fonts ipa-pgothic-fonts ipa-mincho-fonts ipa-pmincho-fonts
	sudo mkdir -p /usr/share/fonts/opentype/ipafont-gothic
	sudo cp /usr/share/fonts/ipa-gothic/ipag.ttf /usr/share/fonts/opentype/ipafont-gothic/
	sudo cp /usr/share/fonts/ipa-pgothic/ipagp.ttf /usr/share/fonts/opentype/ipafont-gothic/
	sudo mkdir -p /usr/share/fonts/opentype/ipafont-mincho
	sudo cp /usr/share/fonts/ipa-mincho/ipam.ttf /usr/share/fonts/opentype/ipafont-mincho/
	sudo cp /usr/share/fonts/ipa-pmincho/ipamp.ttf /usr/share/fonts/opentype/ipafont-mincho/


	FILE SPACING:

	# double space a file
	sed G

	# double space a file which already has blank lines in it. Output file
	# should contain no more than one blank line between lines of text.
	sed '/^$/d;G'

	void main() {
	for (int i = 0; i < 5; i++) {
	print('hello ${i + 1}');
	}
	}

	search = [ notebook , separator ] ,
	[ "any:" , separator ] ,
	term ,
	{ separator , term } ;

	notebook = "notebook:" , ( word \| quoted ) ;

	word = wordchar , { wordchar } ;

	quoted = '"' , { ( any - '"' ) \| '\"' } , '"' ;