anastasop’s gists

anastasop / routes.lisp

Created April 26, 2021 10:27

A tree-search for a first grade puzzle

	#!/usr/bin/sbcl --script

	(defparameter routes `((A B C)
	(B A C D)
	(C A B D E)
	(D B C E)
	(E)))

	(defparameter start 'A)
	(defparameter finish 'E)

anastasop / Puzzle.java

Last active April 26, 2021 11:31

A DFS search for a first grade puzzle

	import java.util.*;
	import java.util.function.Consumer;

	public class Puzzle {
	static record Move(int pos1, int pos2, int score) {
	@Override
	public String toString() {
	return String.format("%d <-> %d", pos1, pos2);
	}
	}

anastasop / shortener.go

Created February 24, 2016 20:30

A very simple url shortener

	package main

	import (
	"bufio"
	"bytes"
	"crypto/sha1"
	"flag"
	"fmt"
	"io/ioutil"
	"net/http"

anastasop / httpd.go

Created January 16, 2015 12:11

A web server for a single directory with content sniffing

	import (
	"flag"
	"log"

	"net/http"
	)

	var addr = flag.String("-h", ":8080", "host:port")
	var dir = flag.String("-d", ".", "directory to serve")

anastasop / convopml

Created August 4, 2013 14:54

Transform an outline file in opml format to a nice html for viewing

	#!/usr/bin/python

	from __future__ import print_function
	import sys, xml.parsers.expat, sys
	import pystache

	if len(sys.argv) != 3:
	print('usage: convopml.py <opml file> <html file>', file = sys.stderr)
	sys.exit(2)

anastasop / beq.py

Created June 16, 2013 16:17

A simple python script that unifies bookmark files exported from chrome and firefox. Useful for old backups but pretty useless in the cloud age. It uses BeautifulSoup (http://www.crummy.com/software/BeautifulSoup/) for html parsing and jinja2 (http://jinja.pocoo.org/docs/) for templating. Tested with python 2.7.3 on ubuntu 64bit 12.04 LTS. The c…

	#!/usr/bin/python

	# create the union of a set of mozilla bookmarks files
	# usage: ./beq.py bookmarks-20110501.html bookmarks-20120101.html > bookmarks.html
	#
	# license: the code is in the public domain

	from bs4 import BeautifulSoup
	from jinja2 import Template
	import sys

anastasop / IncreasingBlabla.java

Created November 20, 2012 14:30

A toy program that generates sentences in english where the first word in one letter long, the second word 2 letters and so on.

	/*

	An Amazing sentence in English from
	https://plus.google.com/photos/117176908342196183611/albums/5812811361700087857/5812811362489240738

	> I do not know where family doctors acquired illegibly
	> perplexing handwriting; nevertheless, extraordinary
	> pharmaceutical intellectuality counterbalancing
	> indecipherability transendentalizes intercommunication's
	> incomprehensibleness

anastasop / smiley.c

Created September 17, 2012 20:25

smiley.c

	// the smiley program demonstrated by Russ Cox at http://research.swtch.com/acme
	// it shows that the plan9 compiler http://plan9.bell-labs.com/sys/doc/comp.html fully supports UTF-8

	// i tried to compile it with a recent version of the plan9 compiler running on vmware but it failed.
	// it seems that older versions of the compiler supported sizeof(void) == 0
	// anyway you get the idea

	#include <u.h>
	#include <libc.h>

anastasop / board.go

Created July 7, 2012 15:32

Describe a chess position in FEN and get the image

	/*
	A simple Go program, http://golang.org, i wrote to demonstrate the
	language. It converts chess FEN notation to images or html tables.
	Uses the public domain pieces from http://www.crockford.com/chess/pieces.html

	The program is small in size but not in functionality. It includes
	http client and server, html templates, image processing, strings, io
	and demonstrates the expressiveness of Go

	See http://blog.golang.org/2011/12/from-zero-to-go-launching-on-google.html

anastasop / tx.go

Created July 7, 2012 15:26

A key-value REST web service in Go that demonstrates the database/sql package

	package main

	/*
	Implements a key-value REST web service in go (http://golang.org)

	It uses
	github.com/bmizerany/pat A sinatra style pattern muxer
	github.com/bmizerany/pq A pure Go postgres driver

	The urls are

Spyros Anastasopoulos anastasop