sycue’s gists

sycue / Math.js

Created September 14, 2016 01:37

	(function() {
	/**
	* Math utility.
	* @static
	* @constructor
	*/
	tracking.Math = {};
	/**
	* Euclidean distance between two points P(x0, y0) and P(x1, y1).
	* @param {number} x0 Horizontal coordinate of P0.

sycue / NextHammingWeight

Created September 14, 2016 01:35 — forked from crsaracco/NextHammingWeight

NextHammingWeight - a function for finding the next int with the same hamming weight

	/* I was searching for an algorithm that gave you the next integer (counting
	* upwards) that has the same hamming weight as the current number, and I
	* couldn't find anything. So here's a function that does that for you. If
	* there is no 'next number' (i.e. this is the largest number that has this
	* hamming weight), it simply returns the same number again.
	*
	* This can probably be optimized; I whipped it up pretty quickly. Relatedly, I
	* only tested a few edge cases I could think of, so if you use this, be sure
	* to test it more thoroughly.
	*

sycue / pagination.rb

Last active January 3, 2016 13:39

	class ApplicationController < ActionController::Base
	#...
	# this method expects a class to be passed with the attributes @@per_page,
	# @@:per_page_max defined
	def prepare_pagination(paginable_class)
	# STEP 1: Prepare values
	# STEP 1a: Prepare page
	# what the client wants or 1 per default
	page = params[:page].nil??
	1 : params[:page].to_i

sycue / ProceduralVsOop.php

Last active November 8, 2023 08:38

PHP Procedural vs. Object-Oriented Programming (OOP)

	<?php
	// Procedural
	function example_new() {
	return array(
	'vars' => array()
	);
	}

	function example_set($example, $name, $value) {
	$example['vars'][$name] = $value;

sycue / queue.php

Created October 23, 2013 08:22

PHP5 in Practice (U.S.)Elliott III & Jonathan D.Eisenhamer

	<?php
	// A library to implement queues in PHP via arrays
	// The Initialize function creates a new queue:
	function &queue_initialize() {
	// In this case, just return a new array
	$new = array();
	return $new;
	}
	// The destroy function will get rid of a queue
	function queue_destroy(&$queue) {

sycue / gist:6590284

Last active December 23, 2015 05:58

	# Regular Expression To Parse Ruby Log Messages
	# parse ruby log message
	# customize as needed
	LOG_EXPRESSION = /([\w]+),\s+\[([^\]\s]+)\s+#([^\]]+)\]\s+(\w+)\s+--\s+(\w+)?:\s+(.+)/

	# sample log output from this call:
	# logger.info("Ubiquitously") { "[dequeud] #{JSON.generate(params)}"}
	string = 'I, [2010-08-15T16:16:46.142801 #81977] INFO -- Ubiquitously: {"title":"Google","url":"google.com","tags":"search, google, api","services":["meta_filter","mixx"],"description":"a search engine!"}'

	string.gsub(LOG_EXPRESSION) do \|match\|

sycue / lithp.rb

Created January 5, 2013 05:24 — forked from p8/lithp.rb

	class Lisp
	Fs = {
	:label => lambda {\|name,value\| Fs[name] = lambda { value } },
	:car => lambda {\|sexp\| sexp.first },
	:cdr => lambda {\|sexp\| sexp.slice(1, sexp.size) },
	:cons => lambda {\|head,tail\| [head] + tail },
	:atom => lambda {\|sexp\| !sexp.is_a?(Array) },
	:eq => lambda {\|a,b\| a == b },
	:if => lambda {\|cnd,thn,els\| cnd ? thn : els }
	}

sycue / uri_host.rb

Created May 3, 2012 10:09

Ruby code to extract host from URL string

	require 'uri'

	myUri = URI.parse( 'http://www.mglenn.com/directory' )
	print myUri.host

	class Lisp
	Fs = {
	:label => lambda {\|name,value\| Fs[name] = lambda { value } },
	:car => lambda {\|sexp\| sexp.first },
	:cdr => lambda {\|sexp\| sexp.slice(1, sexp.size) },
	:cons => lambda {\|head,tail\| [head] + tail },
	:atom => lambda {\|sexp\| !sexp.is_a?(Array) },
	:eq => lambda {\|a,b\| a == b },
	:if => lambda {\|cnd,thn,els\| cnd ? thn : els }
	}