randrews

# To demo in irb:
# load 'spinner.rb' ; include Spinner ; spinner_demo
#
# To use, include this module in a class and then wrap something in with_spinner
# It has two params, both optional. See spinner_demo for usage examples.

module Spinner
  def with_spinner total=nil, message="Working...", &blk
    current=0
    shown=buildstr(message,current,total)

randrews

importClass(Packages.java.sql.DriverManager);
importClass(Packages.java.sql.ResultSet);

// Let the classloader see it.
new Packages.com.mysql.jdbc.Driver();

var DB_BASE='kingdom';
var DB_USER='root';
var DB_PASS='';
var DB_HOST='localhost';

randrews

function monkeyRow(diff,max,op){
    var a=1;
    var b=a+diff;
    var ret=[];
    
    while(b<=max){
	ret.push(op(a,b));
	a++;
	b++;
    }

randrews

importClass(Packages.javax.swing.JComponent);
importClass(Packages.javax.swing.JFrame);
importClass(Packages.javax.swing.JLabel);
importClass(Packages.java.awt.Color);

var frame=new JFrame('Foo!');
var comp=new JComponent(){
	paintComponent:function(g){
	    print('painted');
	    g.setColor(Color.RED);

randrews

(defun matching-char (find other delta &optional start level)
  (save-excursion
    (let ((level (if level level 0))
	  (start (if start start (point))))
      (if (and
	   start
	   (>= start (point-min))
	   (<= start (point-max)))
	  (goto-char start)
	(error "Not within block"))

randrews

#!/usr/bin/ruby

# The original thing required rubygems and json_pure for some reason, even though it defines its own json parser.
# I think I had some trouble getting gems to work, which is why I wrote my own in the first place.
# --RBA 2009-08-22

# require 'rubygems'
# require 'json_pure'

def readWord (stream=STDIN,first=nil)

randrews

require "rubygems"
require "sqlite3"
require "sequel"

database = Sequel.sqlite()

database << <<-SQL
    create table people (
    id integer primary key,
    created_at timestamp,

randrews

-- Summing the sequence 1..n in as many ways as I can think of!

-- With the closed form
function sum(n)
   return ((n+1) * n) / 2
end

print(sum(6)) -- Had better be 21

-- With tail recursion

randrews

require "rubygems"
require "active_support"

{"a" => [1]}.to_json # <== Raises CircularReferenceError. Why?!

randrews

def algorithm_p n
    a = ")" + "()"*n
    m = 2*n - 1
    loop do
        yield a[1..-1]

        a[m] = ")"
        if a[m-1].chr == ")"
            a[m-1] = "("
            m -= 1