flickr.py

#!/usr/bin/env python

# TextExpander Snippet for turning a Flickr photo URL on the clipboard into a shortened Flickr URL.
# Just make a new snippet in TextExpander, select "Shell Script" from the "Content" pull-down,
# and paste this code in.

from subprocess import Popen, PIPE, STDOUT
import sys

def getLongID(url):
	index = url.find("http://www.flickr.com/photos/")
	if index == 0:
		isFlickrURL = 1
	else:
		isFlickrURL = 0
	
	if isFlickrURL:
		idStart = url.find("/", 29) + 1
		idEnd = url.find("/", idStart)
		return int(url[idStart:idEnd])
	else:
		print "Not a Flickr URL."
		sys.exit()
	
alphabet = "123456789abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ"

p = Popen("pbpaste", shell=True, stdin=PIPE, stdout=PIPE, stderr=STDOUT, close_fds=True)
url = p.stdout.read()

if url[0:4] != "http":
	print "No URL on the clipboard."
	sys.exit()
else:
	flickrLongID = getLongID(url)
	baseCount = len(alphabet)
	shortID = ""
	while flickrLongID >= baseCount:
		div = flickrLongID/baseCount
		mod = flickrLongID%baseCount
		shortID = alphabet[mod] + shortID
		flickrLongID = int(div)
	shortID = alphabet[flickrLongID] + shortID
	sys.stdout.write("http://flic.kr/p/" + str(shortID))