There are 15 previous versions of this script.
// ==UserScript==
// @name Scholar
// @namespace http://www.gibbi.com/scripts
// @description Scholar Plugin
// @include http://scholar.google.*/scholar*
// @include http://citeseerx.*
// ==/UserScript==
//
// version 1.4
//
// TODO: add document selection, text tooltips, other stuff.
String.prototype.startsWith = function(str)
{return (this.match("^"+str)==str)}
function xpath(query,node) {
return document.evaluate(query, node, null,
XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
}
function fXPath(query,node)
{
var elements = xpath(query,node);
return elements.snapshotItem(0);
}
function lXPath(query,node)
{
var elements = xpath(query,node);
return elements.snapshotItem(elements.snapshotLength-1);
}
function normalize(str) {
var temp = (str != null) ? parseInt(str) : 0;
return (isNaN(temp)) ? 0 : temp;
}
function insertAfter(parent, node, referenceNode) {
parent.insertBefore(node, referenceNode.nextSibling);
}
var href = window.location.host;
//GM_log("HOST:"+href);
var scholar = href.startsWith("scholar");
//
// This path to be adapted when google scholar changes its page layout.
//
// NOTE: relies on a bug on the Firefox 3.5 DOM such that a <p> is not
// recognized as parent of the firt <font> tag in the expression below.
//
var pathScholar = "/html/body/font/span[2]/a[1]";
var pathCiteseer = "/html/body/div/div/div/div/div/div/div/ul/li[4]/a";
var pathAuthors ="/html/body/font/span[1]";
function collectData()
{
// data = will be filled up with citations per each paper
// selfData = for citeseer, filled up with self citations per each paper
var data = new Array();
var selfData = new Array();
//
// Normalized cites per authors.
//
var authorCount = new Array();
elements = xpath(scholar ? pathScholar : pathCiteseer,document);
authorList = xpath(pathAuthors,document);
// TODO: Add "totalcitations X out of data.length."
//
// First pass, extraction of citation values.
// Assumes authorList and elements have same length.
//
for(var i = 0; i < elements.snapshotLength; i++)
{
var s;
if ( (s = elements.snapshotItem(i)) != null)
{
var a = new Array();
a = s.innerHTML.split(" ");
//GM_log("Parsing "+a);
index = scholar ? a.length - 1 : 2;
data[i] = normalize(a[index]);
if (!scholar) {
var b = new Array();
//GM_log("Parsing2 "+a[index+1]);
b = a[index+1].split("(");
selfData[i] = normalize(b[1]);
};
if ( (s = authorList.snapshotItem(i)) != null)
{
var a = new Array();
a = s.innerHTML.split("-");
var b = new Array();
b = a[0].split(",");
while (b[b.length-1].match("[0-9]+"))
b.pop();
authorCount[i] = b.length;
GM_log("String="+a[0]+" Authors="+b.length+" are:"+b);
}
else authorCount[i] = 1;
} // outer if
} // outer for
return new Array(data, selfData, authorCount);
}
var datas = collectData();
data = datas[0];
selfData = datas[1];
authorCount = datas[2];
data.sort(function(a,b){return b - a});
if (!scholar) selfData.sort(function(a,b){return b - a});
var goOn = !scholar;
var num = 10;
//
// number of results per page in citeseerx.
//
var inc = 10;
goOn = false;
while (goOn)
{
var uri = window.location+ "&start="+num;
GM_log("Will query: "+uri);
GM_xmlhttpRequest({
method: 'GET',
url: uri,
onload: function(responseDetails) {
var datas = collectData();
data = data.concat(datas[0]);
selfData = selfData.concat(datas[1]);
if (datas[0].length == 0) goOn = false;
GM_log('Data:'+data.length+" selfData:"+selfData.length);
}
});
if (num > 100) goOn = false;
num += inc;
}
//
// Second pass, computes indices
//
//
// Number of decimals in results
//
var prec = 1;
var somethingWrong = 0;
function computeIndices(data) {
var totalCitations = 0;
var gIndex = 0;
var hIndex = 0;
var eIndex = 0;
var computedH = false;
var computedG = false;
var citationsG = 0;
var citationsH = 0;
var deltaH = 0;
var deltaG = 0;
var str;
for(i = 0; i < data.length; i++)
{
totalCitations += data[i];
GM_log("i="+i+" Cites:"+totalCitations+" Curr:"+data[i]);
if ( data[i] < i+1 && !computedH )
{
hIndex = i.toFixed(prec);
citationsH = totalCitations-data[i];
computedH = true;
for (j = 0; j <= i && j < data.length; j++)
{
deltaH += ( (i+1) > data[j] ) ? (i+1) - data[j] : 0;
}
deltaH = deltaH.toFixed(prec);
}
if ( totalCitations <= (i+1)*(i+1) && !computedG)
{
gIndex = i.toFixed(prec);
citationsG = totalCitations-data[i];
computedG = true;
deltaG = ((i+1)*(i+1) - totalCitations).toFixed(prec);
}
}
if (!computedH) {
hIndex = "<span id=\"rosso\">>"+data.length+"</span>";
deltaH = "<span id=\"rosso\">-</span>";
}
if (!computedG) {
gIndex = "<span id=\"rosso\">>"+data.length+"</span>";
deltaG = "<span id=\"rosso\">-</span>";
}
if (computedH)
{
eIndex = parseInt(Math.sqrt(citationsH - hIndex*hIndex)).toFixed(prec);
}
else eIndex = "<span id=\"rosso\">-</span>";
var what = "Click to see what's this.";
var hindexString = "<LNK><A href=\"http://en.wikipedia.org/wiki/H-index\">h-index<span>"+what+"</span></A></LNK>:";
var gindexString = "<LNK><A href=\"http://en.wikipedia.org/wiki/G-index\">g-index<span>"+what+"</span></A></LNK>:";
var eindexString = "<LNK><A href=\"http://www.plosone.org/article/info:doi%2F10.1371%2Fjournal.pone.0005429\">e-index<span>"+what+"</span></A></LNK>:";
var deltahString = "<LNK>delta-h<span>delta-h: the number of citations needed to increment h-index by 1</span></LNK>:";
var deltagString = "<LNK>delta-g<span>delta-g: the number of citations needed to increment g-index by 1</span></LNK>:";
str = "<b>Citations in this page:</b> "+totalCitations.toFixed(prec)+
" <b>"+hindexString+"</b> "+hIndex+
" <b>"+gindexString+"</b> "+gIndex+
" <b>"+eindexString+"</b> "+eIndex+
" <b>"+deltahString+"</b> "+deltaH+
" <b>"+deltagString+"</b> "+deltaG;
if (!computedH || !computedG ) {
str += ". Data might be insufficient for computing ";
if (!computedH)
str += "h-index";
if (!computedH && !computedG)
str += " and ";
if (!computedG)
str += "g-index";
str += ".";
somethingWrong = 1;
}
str += "<BR>";
return str;
}
document.title = document.title+" GreaseMonkey";
var division = document.createElement("div");
//
// Remove annoying float bar
//
/*
elements = xpath("/html/body/div[@class='gbh']",document);
for(var i = 0; i < elements.snapshotLength; i++)
{
if ( (s = elements.snapshotItem(i)) != null)
s.parentNode.removeChild(s);
}
*/
division.innerHTML = "<span id=\"scholar\" size=\"+1\"><B>Impact indices:</B></span><BR>";
division.innerHTML += "<span id=\"scholar\">(Plain values)<BR> "+computeIndices(data)+
"</span>";
if (!scholar) {
var noSelf = new Array();
for (i = 0; i < data.length; i++)
{
noSelf[i] = data[i] - selfData[i];
}
division.innerHTML += "<span id=\"scholar\">(Without self citations)<BR> "+ computeIndices(noSelf)+
"</span>";
}
if (scholar && authorCount.length > 0) {
var normalized = new Array();
for (i = 0; i < data.length; i++)
{
normalized[i] = data[i]/authorCount[i];
}
division.innerHTML += "<span id=\"scholar\">(<LNK>Normalized<span>The citations of each paper are divided by the\
corresponding number of authors (authors >4 are rounded to 4)</span></LNK> per co-authorship)<BR> "+
computeIndices(normalized) +
"</span>";
}
if (somethingWrong && scholar)
{
division.innerHTML += "<span id=\"scholar\"><BR>Insufficient data. Perhaps you didn't try with <A href=\""+
window.location+"&num=100\">100 results</A> instead?</BR></span>";
}
division.style.background = scholar ? "#dcf6db" : "#61c0ff";
division.style.color = scholar ? "#000000" : "#ffffff";
division.style.padding = "4px 4px 4px 4px";
division.style.borderTop = "1px solid green";
division.style.borderBottom = "1px solid green";
var td = document.createElement("td");
td.style.align = "left";
td.colSpan = 2;
td.style.borderTop = "1px solid green";
td.style.borderBottom = "1px solid green";
td.style.padding = "4px 4px 4px 4px";
if (scholar) {
division.innerHTML = "<td align=\"left\" bgcolor=\"#dcf6db\" colspan=2 nowrap=\"nowrap\">" + division.innerHTML + "</td>";
var element = fXPath("/html/body/form/table[2]/tbody/tr[2]",document);
var daddy = fXPath("/html/body/form/table[2]/tbody",document);
td.innerHTML = division.innerHTML;
}
/*
* Injected code for querying as words
*/
var clicWord = "var textField = document.gs.q;";
clicWord += "var a = textField.value.split(' '); \
for( i = 0; i \< a.length; i++) \
{ if ( a[i].match(':') ) \
a[i] = a[i].replace(/^.*:/,''); \
}\
textField.value = a.join(' '); \
document.gs.submit();";
/*
* Injected Code for querying as Author name
*/
var clicAuth = "var textField = document.gs.q;";
clicAuth += "var a = textField.value.split(' '); \
for( i = 0; i < a.length; i++) \
{ if ( a[i].match(':') ) \
a[i] = a[i].replace(/^.*:/,''); \
a[i] = 'author:'+a[i]; \
}";
clicAuth += "document.gs.q.value = a.join(' '); \
document.gs.submit(); ";
var radioOn = "checked=\"checked\"";
var checkAuth = "";
var checkWord = radioOn;
var queryField = lXPath("/html/body/form/table/tbody/tr/td[2]/table/tbody/tr/td[1]/input",document);
if (queryField.value.match(":"))
{
checkAuth = radioOn;
checkWord = "";
}
if (scholar) {
insertAfter( daddy, td, element);
var daddy2 = fXPath("/html/body/form/table[2]/tbody/tr[2]/td[1]",document);
var comboBox = lXPath("/html/body/form/table[2]/tbody/tr[2]/td[1]/*",document);
// here code for changing query type
var fieldset = document.createElement('span');
fieldset.innerHTML = "<input type='text' name='as_sauthors' style='display:none'>";
fieldset.innerHTML += "<input type='text' name='as_publication' style='display:none'>";
fieldset.innerHTML += "<font size='-1'> \
<fieldset> \
Redo the above query as: Author name\
<input "+checkAuth+" type=\"radio\" name=\"query_as\" onClick=\""+clicAuth+"\" value=\"auth\"/>\
Matching of all the words\
<input "+checkWord+" type=\"radio\" name=\"query_as\" onClick=\""+clicWord+"\" value=\"word\"/>\
</fieldset>\
</font>";
insertAfter ( daddy2, fieldset, comboBox );
}
else
document.body.insertBefore(division, document.body.firstChild);
document.getElementsByTagName('head')[0].innerHTML += "<style> #rosso { color: red; } #blu { color: blu; } </style>";
if (scholar) {
document.getElementsByTagName('head')[0].innerHTML += "<style> #scholar {font-size:80%} </style>";
} else {
document.getElementsByTagName('head')[0].innerHTML += "<style> #scholar {text-align:left} </style>";
}
document.getElementsByTagName('head')[0].innerHTML += "<style> \
fieldset { border: 0px solid #000000; } \
lnk { position:relative; \
z-index:24; \
text-decoration: none}\
lnk:hover { background-color: lightgreen; z-index: 25 } \
lnk span {display: none} \
lnk:hover span{ \
display: block; position:absolute; font-weight:normal; \
top: 1em; left: 1em; width: 8em; padding: 2px 2px 3px 3px;\
border: 1px solid #000; background-color: #cff; color:#000;\
text-align: left} \
lnk a{ text-decoration: none; color: inherit } \
</style>";
