James Gober jamesgober

Lexing for beginners

This is a guide that should teach you how to perform basic lexing in a functional programing language.
Everything was written in Elixir, but you should be able to follow it if you are using any functional programming language.
Or even an imperative programming language like Python, C or Java.\

What is lexing?

The first question you should ask yourself is, what is lexing? It's the same as tokenising, scanning or lexical analysis.
That might not help you if you haven't heard of these either. Put simply, lexing is the process of breaking down a string
into meaningful units, indepdendent of context. What a lexer will do is make the following happen:

CSS only 3D paper fold text effect

Attempt at a paper folding effect with text so that it looks like it's coming off the page.

Not supported in IE, or Firefox. This is using experimental clip-path property.

This pen was made using clip-path specifically for a demo I was making to provide some creative ways you can use clip-path, and pseudo elements with text effects. Inspired by a graphic I found on Design Tuts (https://design.tutsplus.com/tutorials/3d-paper-text-effect--cms-27962)

You can see my other experiments here: http://codepen.io/collection/DamKJW/

	https://www.php.net/manual/en/function.sys-getloadavg.php#118673


	Function to get current CPU load as percentage value under Windows and Linux.

	Note: Function is getServerLoad(). It will return a decimal value as percentage of current CPU load or NULL if something went wrong (e. g. insufficient access rights).

	<?php

	header("Content-Type: text/plain");

	<?php
	/**
	* ALERT! There are more than ten years since I wrote the first version (adaptation) of this code with PHP 5.6,
	* then I changed my code stack and I couldn't mantain this code anymore. Ten years ago worked like a charm.
	* Fell free to test, use, fork, update, etc. and if possible put in the comments how to fix,
	* if it doesn't work for you as it is, so other people could find answers.
	**/

	/**
	* Get hearder Authorization

	<header>
	<video autoplay playsinline muted loop preload poster="https://s3-us-west-2.amazonaws.com/s.cdpn.io/4273/oceanshot.jpg">
	<source src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/4273/ocean-small.webm" />
	<source src="http://thenewcode.com/assets/videos/ocean-small.mp4" />
	</video>
	<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 285 80" preserveAspectRatio="xMidYMid slice">
	<defs>
	<mask id="mask" x="0" y="0" width="100%" height="100%" >
	<rect x="0" y="0" width="100%" height="100%" />
	<text x="72" y="50">OCEAN</text>

	<!-- Menu App Interface
	<!-- Based on a Dribbble shot
	<!-- that caught my eye
	<!-- http://drbl.in/pWyx
	<!-- ---------------------------------- -->

	<div class="paper preview-1">
	<div class="box">
	<div class="bar">
	<div class="menu">

	<?php
	/**
	* Kullanicinin kullandigi isletim sistemi bilgisini alir.
	*
	* @since 2.0
	*/
	function getOS() {

	$user_agent = $_SERVER['HTTP_USER_AGENT'];

	<!DOCTYPE html>
	<html>

	<head>
	<title>Sine Wave</title>
	<script type="text/javascript">
	function showAxes(ctx,axes) {
	var width = ctx.canvas.width;
	var height = ctx.canvas.height;
	var xMin = 0;

	// data from https://gist.github.com/andyj/7108917

	$array = [
	'44' => 'UK (+44)',
	'1' => 'USA (+1)',
	'213' => 'Algeria (+213)',
	'376' => 'Andorra (+376)',
	'244' => 'Angola (+244)',
	'1264' => 'Anguilla (+1264)',
	'1268' => 'Antigua & Barbuda (+1268)',

	#ifdef HAVE_CONFIG_H
	#include "config.h"
	#endif

	#include "php.h"
	#include "php_ini.h"
	#include "ext/standard/info.h"
	#include "php_hjtest.h"

	int resid;