Author: masnun

Python

Python port to the Alphabet Class

Post author By masnun
Post date September 7, 2009

I have a pretty bad habit of porting codes from one language to another. PHP and Python both are my favorites. But sometimes I feel that I enjoy coding more in Python than PHP. It’s just because I am a lazy guy who hates using text editors to complete a script entirely before executing the program. I like interactive shells. Now that I have set up interactive shell for PHP as well, I write little throw away programs in both PHP and Python. But it still happens that the Python interactive interpreter is loads better than the PHP one. I have to type “echo” every time I want some input from the PHP shell, where as I have to type the name of an element (variable, object, list, tuple or whatever) and python displays it on the shell. So it becomes easier to experiment and debug.

Back to the topic, I was thinking of porting the alphabet class I wrote in PHP to Python. And finally I got some time today morning and finished it.

How to use ?

#!/usr/bin/env python

from alphabet import *

a = alphabet()
print a.getChar(23) # outputs 'w'
print a.getNum('b') # outputs 2

#!/usr/bin/env python

from alphabet import *

a = alphabet()

print a.getChar(23) # outputs 'w'

print a.getNum('b') # outputs 2

Source Code

#!/usr/bin/env python

class alphabet:
	def __init__(self):
		self.l1 = [chr(x) for x in range(ord('a'),ord('z')+1)]
		self.l2 = [x for x in range(1,27)]

	def getNum(self,char):
		mydict = dict(zip(self.l1,self.l2))
		return mydict[char]

	def getChar(self,num):
		mydict = dict(zip(self.l2,self.l1))
		return mydict[num]

#!/usr/bin/env python

class alphabet:

def __init__(self):

self.l1 = [chr(x) for x in range(ord('a'),ord('z')+1)]

self.l2 = [x for x in range(1,27)]

def getNum(self,char):

mydict = dict(zip(self.l1,self.l2))

return mydict[char]

def getChar(self,num):

mydict = dict(zip(self.l2,self.l1))

return mydict[num]

PHP

A Handy alphabet class :)

Another funny class with no serious use. This is a class I wrote to determine the numerical positions of letters in the English alphabet.

How to use ?

<?php
include('alphabet.php');
$a = new alphabet(); // construct the alphabet object
echo $a->getNum('z'); // outputs 26
echo $a->getChar(3); // outputs 'c'
?>

<?php

include('alphabet.php');

$a = new alphabet(); // construct the alphabet object

echo $a->getNum('z'); // outputs 26

echo $a->getChar(3); // outputs 'c'

As you can see, using the getNum() method, you can feed a letter and get the serial number or numerical position of that letter. Again in the same way, use the getChar() method to input a number and get the character/letter in that position.

I use it very often while breaking alphabet related codes.

Source Codes:

<?php
// filename: alphabet.php
// Author: maSnun

class alphabet {
public $num, $alpha,$dict_1,$dict_2;
function __construct() {
$this->num = array(); // placeholder for 1 to 26
$this->alpha = array(); // placeholder for a to z

for($i=1;$i<27;$i++) { $this->num[]= $i; } // dynamically store 1 to 26 in the array
for($i='a';$i<'z';$i++) { $this->alpha[]= $i; } // dynamically store a to y in the array
$this->alpha[] = 'z'; // manually add z to the array
$this->dict_1 = array_combine($this->num,$this->alpha); // combine them to form a dictionary
$this->dict_2 = array_combine($this->alpha,$this->num); // combine them to form a dictionary
}

function getNum($char) { return $this->dict_2[$char]; }
function getChar($n) { return $this->dict_1[$n]; }


}

?>

<?php

// filename: alphabet.php

// Author: maSnun

class alphabet {

public $num, $alpha,$dict_1,$dict_2;

function __construct() {

$this->num = array(); // placeholder for 1 to 26

$this->alpha = array(); // placeholder for a to z

for($i=1;$i<27;$i++) { $this->num[]= $i; } // dynamically store 1 to 26 in the array

for($i='a';$i<'z';$i++) { $this->alpha[]= $i; } // dynamically store a to y in the array

$this->alpha[] = 'z'; // manually add z to the array

$this->dict_1 = array_combine($this->num,$this->alpha); // combine them to form a dictionary

$this->dict_2 = array_combine($this->alpha,$this->num); // combine them to form a dictionary

}

function getNum($char) { return $this->dict_2[$char]; }

function getChar($n) { return $this->dict_1[$n]; }

}

PHP

Decoding Google’s Tweet With PHP

Post author By masnun
Post date September 5, 2009
2 Comments on Decoding Google’s Tweet With PHP

This is something for fun — nothing serious. It just happened that Google just sent a mysterious Tweet around 2 hours ago from now with an image with of the Google home page featuring an UFO. The UFO was seen pulling an O out of the google logo. But what the heck does that tweet mean ?

1.12.12 25.15.21.18 15 1.18.5 2.5.12.15.14.7 20.15 21.19 was the tweet.

Well, it’s nothing tough. Every number separated by a dot or space corresponds to the alphabet. So, I wrote a PHP script to decode this mysterious tweet and finally found the meaning:

masnun@ubuntu:~/Desktop$ php decode-google-tweet
all your o are belong to us
masnun@ubuntu:~/Desktop$

masnun@ubuntu:~/Desktop$ php decode-google-tweet

all your o are belong to us

masnun@ubuntu:~/Desktop$

So, it meant ” all your o are belong to us ” 😉
Sounds a bit odd ? Or wrong in grammar ? yeah, still, that’s the message. It is confirmed on the twitpic image.

And here’s the source code —

<?php

$num = array(); // placeholder for 1 to 26
$alpha = array(); // placeholder for a to z

for($i=1;$i<27;$i++) { $num[]= $i; } // dynamically store 1 to 26 in the array
for($i='a';$i<'z';$i++) { $alpha[]= $i; } // dynamically store a to y in the array
$alpha[] = 'z'; // manually add z to the array
$dict = array_combine($num,$alpha); // combine them to form a dictionary

// print_r($dict);

$string = "1.12.12 25.15.21.18 15 1.18.5 2.5.12.15.14.7 20.15 21.19"; // the code to decode
$arr = explode(" ",$string); // differentiate the parts

$meaning = ""; // placeholder for the ultimate meaning

for($i=0; $i<count($arr); $i++) {

$s = $arr[$i]; // dot seperated portions
$a = explode(".",$s); // seperate the numbers
for($j=0; $j<count($a); $j++) {
$ch = $a[$j]; // get individual numbers
$meaning .= $dict[$ch]; // look up in the dictionary for the corresponding char
 }
$meaning .=" "; // restore the spaces


}

echo $meaning."\n"; // echo the meaning

?>

<?php

$num = array(); // placeholder for 1 to 26

$alpha = array(); // placeholder for a to z

for($i=1;$i<27;$i++) { $num[]= $i; } // dynamically store 1 to 26 in the array

for($i='a';$i<'z';$i++) { $alpha[]= $i; } // dynamically store a to y in the array

$alpha[] = 'z'; // manually add z to the array

$dict = array_combine($num,$alpha); // combine them to form a dictionary

// print_r($dict);

$string = "1.12.12 25.15.21.18 15 1.18.5 2.5.12.15.14.7 20.15 21.19"; // the code to decode

$arr = explode(" ",$string); // differentiate the parts

$meaning = ""; // placeholder for the ultimate meaning

for($i=0; $i<count($arr); $i++) {

$s = $arr[$i]; // dot seperated portions

$a = explode(".",$s); // seperate the numbers

for($j=0; $j<count($a); $j++) {

$ch = $a[$j]; // get individual numbers

$meaning .= $dict[$ch]; // look up in the dictionary for the corresponding char

}

$meaning .=" "; // restore the spaces

}

echo $meaning."\n"; // echo the meaning

It was quite a bit of fun decoding the message with PHP. Well, I do agree that there was no need to use PHP here. But why do the hard work from memory when you have automation tools at your hand 😉 ?

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