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#!/usr/bin/env python

from sys import argv, exit
from os import listdir, path
from email.Parser import Parser
from email.utils import parsedate, parseaddr
import cPickle as pickle
import sys
import itertools
import igraph

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    var offset = 0;
    var selection = window.getSelection();
    var range = selection.getRangeAt(0);
    var start = range.startOffset;
    var end = range.endOffset;

    if ( selection.baseNode.parentNode.hasChildNodes() ) { 
        for ( var i = 0 ; selection.baseNode.parentNode.childNodes.length > i ; i++ ) { 
            var cnode = selection.baseNode.parentNode.childNodes[i];
            if (cnode.nodeType == document.TEXT_NODE) {