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// mercurial.js - JavaScript utility functions
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//
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// Rendering of branch DAGs on the client side
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// Display of elapsed time
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// Show or hide diffstat
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//
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// Copyright 2008 Dirkjan Ochtman <dirkjan AT ochtman DOT nl>
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// Copyright 2006 Alexander Schremmer <alex AT alexanderweb DOT de>
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//
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// derived from code written by Scott James Remnant <scott@ubuntu.com>
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// Copyright 2005 Canonical Ltd.
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//
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// This software may be used and distributed according to the terms
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// of the GNU General Public License, incorporated herein by reference.
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var colors = [
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[ 1.0, 0.0, 0.0 ],
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[ 1.0, 1.0, 0.0 ],
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[ 0.0, 1.0, 0.0 ],
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[ 0.0, 1.0, 1.0 ],
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[ 0.0, 0.0, 1.0 ],
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[ 1.0, 0.0, 1.0 ]
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];
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function Graph() {
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this.canvas = document.getElementById('graph');
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if (window.G_vmlCanvasManager) this.canvas = window.G_vmlCanvasManager.initElement(this.canvas);
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this.ctx = this.canvas.getContext('2d');
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this.ctx.strokeStyle = 'rgb(0, 0, 0)';
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this.ctx.fillStyle = 'rgb(0, 0, 0)';
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this.cur = [0, 0];
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this.line_width = 3;
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this.bg = [0, 4];
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this.cell = [2, 0];
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this.columns = 0;
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this.revlink = '';
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this.scale = function(height) {
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this.bg_height = height;
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this.box_size = Math.floor(this.bg_height / 1.2);
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this.cell_height = this.box_size;
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}
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function colorPart(num) {
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num *= 255
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num = num < 0 ? 0 : num;
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num = num > 255 ? 255 : num;
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var digits = Math.round(num).toString(16);
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if (num < 16) {
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return '0' + digits;
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} else {
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return digits;
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}
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}
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this.setColor = function(color, bg, fg) {
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// Set the colour.
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//
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// If color is a string, expect an hexadecimal RGB
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// value and apply it unchanged. If color is a number,
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// pick a distinct colour based on an internal wheel;
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// the bg parameter provides the value that should be
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// assigned to the 'zero' colours and the fg parameter
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// provides the multiplier that should be applied to
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// the foreground colours.
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var s;
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if(typeof color == "string") {
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s = "#" + color;
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} else { //typeof color == "number"
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color %= colors.length;
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var red = (colors[color][0] * fg) || bg;
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var green = (colors[color][1] * fg) || bg;
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var blue = (colors[color][2] * fg) || bg;
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red = Math.round(red * 255);
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green = Math.round(green * 255);
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blue = Math.round(blue * 255);
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s = 'rgb(' + red + ', ' + green + ', ' + blue + ')';
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}
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this.ctx.strokeStyle = s;
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this.ctx.fillStyle = s;
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return s;
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}
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this.edge = function(x0, y0, x1, y1, color, width) {
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this.setColor(color, 0.0, 0.65);
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if(width >= 0)
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this.ctx.lineWidth = width;
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this.ctx.beginPath();
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this.ctx.moveTo(x0, y0);
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this.ctx.lineTo(x1, y1);
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this.ctx.stroke();
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}
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this.render = function(data) {
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var backgrounds = '';
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var nodedata = '';
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for (var i in data) {
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var parity = i % 2;
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this.cell[1] += this.bg_height;
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this.bg[1] += this.bg_height;
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var cur = data[i];
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var node = cur[1];
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var edges = cur[2];
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var fold = false;
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var prevWidth = this.ctx.lineWidth;
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for (var j in edges) {
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line = edges[j];
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start = line[0];
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end = line[1];
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color = line[2];
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var width = line[3];
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if(width < 0)
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width = prevWidth;
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var branchcolor = line[4];
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if(branchcolor)
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color = branchcolor;
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if (end > this.columns || start > this.columns) {
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this.columns += 1;
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}
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if (start == this.columns && start > end) {
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var fold = true;
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}
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x0 = this.cell[0] + this.box_size * start + this.box_size / 2;
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y0 = this.bg[1] - this.bg_height / 2;
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x1 = this.cell[0] + this.box_size * end + this.box_size / 2;
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y1 = this.bg[1] + this.bg_height / 2;
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this.edge(x0, y0, x1, y1, color, width);
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}
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this.ctx.lineWidth = prevWidth;
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// Draw the revision node in the right column
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column = node[0]
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color = node[1]
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radius = this.box_size / 8;
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x = this.cell[0] + this.box_size * column + this.box_size / 2;
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y = this.bg[1] - this.bg_height / 2;
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var add = this.vertex(x, y, color, parity, cur);
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backgrounds += add[0];
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nodedata += add[1];
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if (fold) this.columns -= 1;
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}
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document.getElementById('nodebgs').innerHTML += backgrounds;
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document.getElementById('graphnodes').innerHTML += nodedata;
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}
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}
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process_dates = (function(document, RegExp, Math, isNaN, Date, _false, _true){
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// derived from code from mercurial/templatefilter.py
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var scales = {
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'year': 365 * 24 * 60 * 60,
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'month': 30 * 24 * 60 * 60,
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'week': 7 * 24 * 60 * 60,
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'day': 24 * 60 * 60,
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'hour': 60 * 60,
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'minute': 60,
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'second': 1
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};
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function format(count, string){
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var ret = count + ' ' + string;
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if (count > 1){
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ret = ret + 's';
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}
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return ret;
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}
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function shortdate(date){
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var ret = date.getFullYear() + '-';
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// getMonth() gives a 0-11 result
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var month = date.getMonth() + 1;
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if (month <= 9){
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ret += '0' + month;
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} else {
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ret += month;
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}
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ret += '-';
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var day = date.getDate();
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if (day <= 9){
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ret += '0' + day;
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} else {
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ret += day;
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}
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return ret;
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}
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function age(datestr){
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var now = new Date();
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var once = new Date(datestr);
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if (isNaN(once.getTime())){
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// parsing error
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return datestr;
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}
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var delta = Math.floor((now.getTime() - once.getTime()) / 1000);
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var future = _false;
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if (delta < 0){
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future = _true;
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delta = -delta;
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if (delta > (30 * scales.year)){
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return "in the distant future";
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}
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}
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if (delta > (2 * scales.year)){
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return shortdate(once);
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}
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for (unit in scales){
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var s = scales[unit];
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var n = Math.floor(delta / s);
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if ((n >= 2) || (s == 1)){
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if (future){
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return format(n, unit) + ' from now';
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} else {
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return format(n, unit) + ' ago';
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}
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}
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}
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}
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return function(){
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var nodes = document.getElementsByTagName('*');
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var ageclass = new RegExp('\\bage\\b');
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var dateclass = new RegExp('\\bdate\\b');
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for (var i=0; i<nodes.length; ++i){
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var node = nodes[i];
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var classes = node.className;
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if (ageclass.test(classes)){
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var agevalue = age(node.textContent);
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if (dateclass.test(classes)){
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// We want both: date + (age)
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node.textContent += ' ('+agevalue+')';
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} else {
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node.textContent = agevalue;
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}
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}
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}
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}
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})(document, RegExp, Math, isNaN, Date, false, true)
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function showDiffstat() {
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document.getElementById('diffstatdetails').style.display = 'inline';
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document.getElementById('diffstatexpand').style.display = 'none';
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}
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function hideDiffstat() {
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document.getElementById('diffstatdetails').style.display = 'none';
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document.getElementById('diffstatexpand').style.display = 'inline';
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}
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