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Posted to commits@tinkerpop.apache.org by sp...@apache.org on 2018/03/28 12:48:15 UTC
svn commit: r1827920 [3/20] - in /tinkerpop/site: docs/3.3.2-SNAPSHOT/
docs/3.3.2-SNAPSHOT/dev/developer/ docs/3.3.2-SNAPSHOT/dev/future/
docs/3.3.2-SNAPSHOT/dev/provider/ docs/3.3.2-SNAPSHOT/images/
docs/3.3.2-SNAPSHOT/logs/ docs/3.3.2-SNAPSHOT/recipe...
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--- tinkerpop/site/docs/3.3.2-SNAPSHOT/tutorials/gremlins-anatomy/index.html (added)
+++ tinkerpop/site/docs/3.3.2-SNAPSHOT/tutorials/gremlins-anatomy/index.html Wed Mar 28 12:48:13 2018
@@ -0,0 +1,1086 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="UTF-8">
+<!--[if IE]><meta http-equiv="X-UA-Compatible" content="IE=edge"><![endif]-->
+<meta name="viewport" content="width=device-width, initial-scale=1.0">
+<meta name="generator" content="Asciidoctor 1.5.5">
+<title>Gremlin’s Anatomy</title>
+<style>
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/*! normalize.css v2.1.2 | MIT License | git.io/normalize */
+/* ========================================================================== HTML5 display definitions ========================================================================== */
+/** Correct `block` display not defined in IE 8/9. */
+@import url(http://cdnjs.cloudflare.com/ajax/libs/font-awesome/3.2.1/css/font-awesome.css);
+article, aside, details, figcaption, figure, footer, header, hgroup, main, nav, section, summary { display: block; }
+
+/** Correct `inline-block` display not defined in IE 8/9. */
+audio, canvas, video { display: inline-block; }
+
+/** Prevent modern browsers from displaying `audio` without controls. Remove excess height in iOS 5 devices. */
+audio:not([controls]) { display: none; height: 0; }
+
+/** Address `[hidden]` styling not present in IE 8/9. Hide the `template` element in IE, Safari, and Firefox < 22. */
+[hidden], template { display: none; }
+
+script { display: none !important; }
+
+/* ========================================================================== Base ========================================================================== */
+/** 1. Set default font family to sans-serif. 2. Prevent iOS text size adjust after orientation change, without disabling user zoom. */
+html { font-family: sans-serif; /* 1 */ -ms-text-size-adjust: 100%; /* 2 */ -webkit-text-size-adjust: 100%; /* 2 */ }
+
+/** Remove default margin. */
+body { margin: 0; }
+
+/* ========================================================================== Links ========================================================================== */
+/** Remove the gray background color from active links in IE 10. */
+a { background: transparent; }
+
+/** Address `outline` inconsistency between Chrome and other browsers. */
+a:focus { outline: thin dotted; }
+
+/** Improve readability when focused and also mouse hovered in all browsers. */
+a:active, a:hover { outline: 0; }
+
+/* ========================================================================== Typography ========================================================================== */
+/** Address variable `h1` font-size and margin within `section` and `article` contexts in Firefox 4+, Safari 5, and Chrome. */
+h1 { font-size: 2em; margin: 0.67em 0; }
+
+/** Address styling not present in IE 8/9, Safari 5, and Chrome. */
+abbr[title] { border-bottom: 1px dotted; }
+
+/** Address style set to `bolder` in Firefox 4+, Safari 5, and Chrome. */
+b, strong { font-weight: bold; }
+
+/** Address styling not present in Safari 5 and Chrome. */
+dfn { font-style: italic; }
+
+/** Address differences between Firefox and other browsers. */
+hr { -moz-box-sizing: content-box; box-sizing: content-box; height: 0; }
+
+/** Address styling not present in IE 8/9. */
+mark { background: #ff0; color: #000; }
+
+/** Correct font family set oddly in Safari 5 and Chrome. */
+code, kbd, pre, samp { font-family: monospace, serif; font-size: 1em; }
+
+/** Improve readability of pre-formatted text in all browsers. */
+pre { white-space: pre-wrap; }
+
+/** Set consistent quote types. */
+q { quotes: "\201C" "\201D" "\2018" "\2019"; }
+
+/** Address inconsistent and variable font size in all browsers. */
+small { font-size: 80%; }
+
+/** Prevent `sub` and `sup` affecting `line-height` in all browsers. */
+sub, sup { font-size: 75%; line-height: 0; position: relative; vertical-align: baseline; }
+
+sup { top: -0.5em; }
+
+sub { bottom: -0.25em; }
+
+/* ========================================================================== Embedded content ========================================================================== */
+/** Remove border when inside `a` element in IE 8/9. */
+img { border: 0; }
+
+/** Correct overflow displayed oddly in IE 9. */
+svg:not(:root) { overflow: hidden; }
+
+/* ========================================================================== Figures ========================================================================== */
+/** Address margin not present in IE 8/9 and Safari 5. */
+figure { margin: 0; }
+
+/* ========================================================================== Forms ========================================================================== */
+/** Define consistent border, margin, and padding. */
+fieldset { border: 1px solid #c0c0c0; margin: 0 2px; padding: 0.35em 0.625em 0.75em; }
+
+/** 1. Correct `color` not being inherited in IE 8/9. 2. Remove padding so people aren't caught out if they zero out fieldsets. */
+legend { border: 0; /* 1 */ padding: 0; /* 2 */ }
+
+/** 1. Correct font family not being inherited in all browsers. 2. Correct font size not being inherited in all browsers. 3. Address margins set differently in Firefox 4+, Safari 5, and Chrome. */
+button, input, select, textarea { font-family: inherit; /* 1 */ font-size: 100%; /* 2 */ margin: 0; /* 3 */ }
+
+/** Address Firefox 4+ setting `line-height` on `input` using `!important` in the UA stylesheet. */
+button, input { line-height: normal; }
+
+/** Address inconsistent `text-transform` inheritance for `button` and `select`. All other form control elements do not inherit `text-transform` values. Correct `button` style inheritance in Chrome, Safari 5+, and IE 8+. Correct `select` style inheritance in Firefox 4+ and Opera. */
+button, select { text-transform: none; }
+
+/** 1. Avoid the WebKit bug in Android 4.0.* where (2) destroys native `audio` and `video` controls. 2. Correct inability to style clickable `input` types in iOS. 3. Improve usability and consistency of cursor style between image-type `input` and others. */
+button, html input[type="button"], input[type="reset"], input[type="submit"] { -webkit-appearance: button; /* 2 */ cursor: pointer; /* 3 */ }
+
+/** Re-set default cursor for disabled elements. */
+button[disabled], html input[disabled] { cursor: default; }
+
+/** 1. Address box sizing set to `content-box` in IE 8/9. 2. Remove excess padding in IE 8/9. */
+input[type="checkbox"], input[type="radio"] { box-sizing: border-box; /* 1 */ padding: 0; /* 2 */ }
+
+/** 1. Address `appearance` set to `searchfield` in Safari 5 and Chrome. 2. Address `box-sizing` set to `border-box` in Safari 5 and Chrome (include `-moz` to future-proof). */
+input[type="search"] { -webkit-appearance: textfield; /* 1 */ -moz-box-sizing: content-box; -webkit-box-sizing: content-box; /* 2 */ box-sizing: content-box; }
+
+/** Remove inner padding and search cancel button in Safari 5 and Chrome on OS X. */
+input[type="search"]::-webkit-search-cancel-button, input[type="search"]::-webkit-search-decoration { -webkit-appearance: none; }
+
+/** Remove inner padding and border in Firefox 4+. */
+button::-moz-focus-inner, input::-moz-focus-inner { border: 0; padding: 0; }
+
+/** 1. Remove default vertical scrollbar in IE 8/9. 2. Improve readability and alignment in all browsers. */
+textarea { overflow: auto; /* 1 */ vertical-align: top; /* 2 */ }
+
+/* ========================================================================== Tables ========================================================================== */
+/** Remove most spacing between table cells. */
+table { border-collapse: collapse; border-spacing: 0; }
+
+meta.foundation-mq-small { font-family: "only screen and (min-width: 768px)"; width: 768px; }
+
+meta.foundation-mq-medium { font-family: "only screen and (min-width:1280px)"; width: 1280px; }
+
+meta.foundation-mq-large { font-family: "only screen and (min-width:1440px)"; width: 1440px; }
+
+*, *:before, *:after { -moz-box-sizing: border-box; -webkit-box-sizing: border-box; box-sizing: border-box; }
+
+html, body { font-size: 100%; }
+
+body { background: white; color: #222222; padding: 0; margin: 0; font-family: "Helvetica Neue", "Helvetica", Helvetica, Arial, sans-serif; font-weight: normal; font-style: normal; line-height: 1; position: relative; cursor: auto; }
+
+a:hover { cursor: pointer; }
+
+img, object, embed { max-width: 100%; height: auto; }
+
+object, embed { height: 100%; }
+
+img { -ms-interpolation-mode: bicubic; }
+
+#map_canvas img, #map_canvas embed, #map_canvas object, .map_canvas img, .map_canvas embed, .map_canvas object { max-width: none !important; }
+
+.left { float: left !important; }
+
+.right { float: right !important; }
+
+.text-left { text-align: left !important; }
+
+.text-right { text-align: right !important; }
+
+.text-center { text-align: center !important; }
+
+.text-justify { text-align: justify !important; }
+
+.hide { display: none; }
+
+.antialiased, body { -webkit-font-smoothing: antialiased; }
+
+img { display: inline-block; vertical-align: middle; }
+
+textarea { height: auto; min-height: 50px; }
+
+select { width: 100%; }
+
+p.lead, .paragraph.lead > p, #preamble > .sectionbody > .paragraph:first-of-type p { font-size: 1.21875em; line-height: 1.6; }
+
+.subheader, #content #toctitle, .admonitionblock td.content > .title, .exampleblock > .title, .imageblock > .title, .listingblock > .title, .literalblock > .title, .mathblock > .title, .openblock > .title, .paragraph > .title, .quoteblock > .title, .sidebarblock > .title, .tableblock > .title, .verseblock > .title, .videoblock > .title, .dlist > .title, .olist > .title, .ulist > .title, .qlist > .title, .hdlist > .title, .tableblock > caption { line-height: 1.4; color: #6c818f; font-weight: 300; margin-top: 0.2em; margin-bottom: 0.5em; }
+
+/* Typography resets */
+div, dl, dt, dd, ul, ol, li, h1, h2, h3, #toctitle, .sidebarblock > .content > .title, h4, h5, h6, pre, form, p, blockquote, th, td { margin: 0; padding: 0; direction: ltr; }
+
+/* Default Link Styles */
+a { color: #444444; text-decoration: underline; line-height: inherit; }
+a:hover, a:focus { color: #111111; }
+a img { border: none; }
+
+/* Default paragraph styles */
+p { font-family: inherit; font-weight: normal; font-size: 1em; line-height: 1.5; margin-bottom: 1.25em; text-rendering: optimizeLegibility; }
+p aside { font-size: 0.875em; line-height: 1.35; font-style: italic; }
+
+/* Default header styles */
+h1, h2, h3, #toctitle, .sidebarblock > .content > .title, h4, h5, h6 { font-family: ff-meta-web-pro-1, ff-meta-web-pro-2, Arial, "Helvetica Neue", sans-serif; font-weight: bold; font-style: normal; color: #465158; text-rendering: optimizeLegibility; margin-top: 1em; margin-bottom: 0.5em; line-height: 1.2125em; }
+h1 small, h2 small, h3 small, #toctitle small, .sidebarblock > .content > .title small, h4 small, h5 small, h6 small { font-size: 60%; color: #909ea7; line-height: 0; }
+
+h1 { font-size: 2.125em; }
+
+h2 { font-size: 1.6875em; }
+
+h3, #toctitle, .sidebarblock > .content > .title { font-size: 1.375em; }
+
+h4 { font-size: 1.125em; }
+
+h5 { font-size: 1.125em; }
+
+h6 { font-size: 1em; }
+
+hr { border: solid #dddddd; border-width: 1px 0 0; clear: both; margin: 1.25em 0 1.1875em; height: 0; }
+
+/* Helpful Typography Defaults */
+em, i { font-style: italic; line-height: inherit; }
+
+strong, b { font-weight: bold; line-height: inherit; }
+
+small { font-size: 60%; line-height: inherit; }
+
+code { font-family: "Consolas", "Deja Vu Sans Mono", "Bitstream Vera Sans Mono", monospace; font-weight: normal; color: #444444; }
+
+/* Lists */
+ul, ol, dl { font-size: 1em; line-height: 1.5; margin-bottom: 1.25em; list-style-position: outside; font-family: inherit; }
+
+ul, ol { margin-left: 0; }
+ul.no-bullet, ol.no-bullet { margin-left: 0; }
+
+/* Unordered Lists */
+ul li ul, ul li ol { margin-left: 1.25em; margin-bottom: 0; font-size: 1em; /* Override nested font-size change */ }
+ul.square li ul, ul.circle li ul, ul.disc li ul { list-style: inherit; }
+ul.square { list-style-type: square; }
+ul.circle { list-style-type: circle; }
+ul.disc { list-style-type: disc; }
+ul.no-bullet { list-style: none; }
+
+/* Ordered Lists */
+ol li ul, ol li ol { margin-left: 1.25em; margin-bottom: 0; }
+
+/* Definition Lists */
+dl dt { margin-bottom: 0.3em; font-weight: bold; }
+dl dd { margin-bottom: 0.75em; }
+
+/* Abbreviations */
+abbr, acronym { text-transform: uppercase; font-size: 90%; color: black; border-bottom: 1px dotted #dddddd; cursor: help; }
+
+abbr { text-transform: none; }
+
+/* Blockquotes */
+blockquote { margin: 0 0 1.25em; padding: 0.5625em 1.25em 0 1.1875em; border-left: 1px solid #dddddd; }
+blockquote cite { display: block; font-size: 0.8125em; color: #748590; }
+blockquote cite:before { content: "\2014 \0020"; }
+blockquote cite a, blockquote cite a:visited { color: #748590; }
+
+blockquote, blockquote p { line-height: 1.5; color: #909ea7; }
+
+/* Microformats */
+.vcard { display: inline-block; margin: 0 0 1.25em 0; border: 1px solid #dddddd; padding: 0.625em 0.75em; }
+.vcard li { margin: 0; display: block; }
+.vcard .fn { font-weight: bold; font-size: 0.9375em; }
+
+.vevent .summary { font-weight: bold; }
+.vevent abbr { cursor: auto; text-decoration: none; font-weight: bold; border: none; padding: 0 0.0625em; }
+
+@media only screen and (min-width: 768px) { h1, h2, h3, #toctitle, .sidebarblock > .content > .title, h4, h5, h6 { line-height: 1.4; }
+ h1 { font-size: 2.75em; }
+ h2 { font-size: 2.3125em; }
+ h3, #toctitle, .sidebarblock > .content > .title { font-size: 1.6875em; }
+ h4 { font-size: 1.4375em; } }
+/* Print styles. Inlined to avoid required HTTP connection: www.phpied.com/delay-loading-your-print-css/ Credit to Paul Irish and HTML5 Boilerplate (html5boilerplate.com)
+*/
+.print-only { display: none !important; }
+
+@media print { * { background: transparent !important; color: #000 !important; /* Black prints faster: h5bp.com/s */ box-shadow: none !important; text-shadow: none !important; }
+ a, a:visited { text-decoration: underline; }
+ a[href]:after { content: " (" attr(href) ")"; }
+ abbr[title]:after { content: " (" attr(title) ")"; }
+ .ir a:after, a[href^="javascript:"]:after, a[href^="#"]:after { content: ""; }
+ pre, blockquote { border: 1px solid #999; page-break-inside: avoid; }
+ thead { display: table-header-group; /* h5bp.com/t */ }
+ tr, img { page-break-inside: avoid; }
+ img { max-width: 100% !important; }
+ @page { margin: 0.5cm; }
+ p, h2, h3, #toctitle, .sidebarblock > .content > .title { orphans: 3; widows: 3; }
+ h2, h3, #toctitle, .sidebarblock > .content > .title { page-break-after: avoid; }
+ .hide-on-print { display: none !important; }
+ .print-only { display: block !important; }
+ .hide-for-print { display: none !important; }
+ .show-for-print { display: inherit !important; } }
+/* Tables */
+table { background: white; margin-bottom: 1.25em; border: solid 0 #dddddd; }
+table thead, table tfoot { background: none; font-weight: bold; }
+table thead tr th, table thead tr td, table tfoot tr th, table tfoot tr td { padding: 1px 8px 1px 5px; font-size: 1em; color: #222222; text-align: left; }
+table tr th, table tr td { padding: 1px 8px 1px 5px; font-size: 1em; color: #222222; }
+table tr.even, table tr.alt, table tr:nth-of-type(even) { background: none; }
+table thead tr th, table tfoot tr th, table tbody tr td, table tr td, table tfoot tr td { display: table-cell; line-height: 1.5; }
+
+.clearfix:before, .clearfix:after, .float-group:before, .float-group:after { content: " "; display: table; }
+.clearfix:after, .float-group:after { clear: both; }
+
+*:not(pre) > code { font-size: 0.95em; padding: 0; white-space: nowrap; background-color: #f2f2f2; border: 0 solid #dddddd; -webkit-border-radius: 6px; border-radius: 6px; text-shadow: none; }
+
+pre, pre > code { line-height: 1.2; color: inherit; font-family: "Consolas", "Deja Vu Sans Mono", "Bitstream Vera Sans Mono", monospace; font-weight: normal; }
+
+.keyseq { color: #333333; }
+
+kbd:not(.keyseq) { display: inline-block; color: black; font-size: 0.75em; line-height: 1.4; background-color: #F7F7F7; border: 1px solid #ccc; -webkit-border-radius: 3px; border-radius: 3px; -webkit-box-shadow: 0 1px 0 rgba(0, 0, 0, 0.2), 0 0 0 2px white inset; box-shadow: 0 1px 0 rgba(0, 0, 0, 0.2), 0 0 0 2px white inset; margin: -0.15em 0.15em 0 0.15em; padding: 0.2em 0.6em 0.2em 0.5em; vertical-align: middle; white-space: nowrap; }
+
+.keyseq kbd:first-child { margin-left: 0; }
+
+.keyseq kbd:last-child { margin-right: 0; }
+
+.menuseq, .menu { color: black; }
+
+b.button:before, b.button:after { position: relative; top: -1px; font-weight: normal; }
+
+b.button:before { content: "["; padding: 0 3px 0 2px; }
+
+b.button:after { content: "]"; padding: 0 2px 0 3px; }
+
+p a > code:hover { color: #373737; }
+
+#header, #content, #footnotes, #footer { width: 100%; margin-left: auto; margin-right: auto; margin-top: 0; margin-bottom: 0; max-width: 62.5em; *zoom: 1; position: relative; padding-left: 0.9375em; padding-right: 0.9375em; }
+#header:before, #header:after, #content:before, #content:after, #footnotes:before, #footnotes:after, #footer:before, #footer:after { content: " "; display: table; }
+#header:after, #content:after, #footnotes:after, #footer:after { clear: both; }
+
+#header { margin-bottom: 2.5em; }
+#header > h1 { color: #111111; font-weight: bold; border-bottom: 1px solid #dddddd; margin-bottom: -28px; padding-bottom: 32px; }
+#header span { color: #909ea7; }
+#header #revnumber { text-transform: capitalize; }
+#header br { display: none; }
+#header br + span { padding-left: 3px; }
+#header br + span:before { content: "\2013 \0020"; }
+#header br + span.author { padding-left: 0; }
+#header br + span.author:before { content: ", "; }
+
+#toc { border-bottom: 1px solid #dddddd; padding-bottom: 1.25em; }
+#toc > ul { margin-left: 0.25em; }
+#toc ul.sectlevel0 > li > a { font-style: italic; }
+#toc ul.sectlevel0 ul.sectlevel1 { margin-left: 0; margin-top: 0.5em; margin-bottom: 0.5em; }
+#toc ul { list-style-type: none; }
+
+#toctitle { color: #6c818f; }
+
+@media only screen and (min-width: 768px) { body.toc2 { padding-left: 15em; padding-right: 0; }
+ #toc.toc2 { position: fixed; width: 15em; left: 0; top: 0; border-right: 1px solid #dddddd; border-bottom: 0; z-index: 1000; padding: 1em; height: 100%; overflow: auto; }
+ #toc.toc2 #toctitle { margin-top: 0; font-size: 1.2em; }
+ #toc.toc2 > ul { font-size: .90em; }
+ #toc.toc2 ul ul { margin-left: 0; padding-left: 1em; }
+ #toc.toc2 ul.sectlevel0 ul.sectlevel1 { padding-left: 0; margin-top: 0.5em; margin-bottom: 0.5em; }
+ body.toc2.toc-right { padding-left: 0; padding-right: 15em; }
+ body.toc2.toc-right #toc.toc2 { border-right: 0; border-left: 1px solid #dddddd; left: auto; right: 0; } }
+@media only screen and (min-width: 1280px) { body.toc2 { padding-left: 20em; padding-right: 0; }
+ #toc.toc2 { width: 20em; }
+ #toc.toc2 #toctitle { font-size: 1.375em; }
+ #toc.toc2 > ul { font-size: 0.95em; }
+ #toc.toc2 ul ul { padding-left: 1.25em; }
+ body.toc2.toc-right { padding-left: 0; padding-right: 20em; } }
+#content #toc { border-style: solid; border-width: 1px; border-color: #d9d9d9; margin-bottom: 1.25em; padding: 1.25em; background: #f2f2f2; border-width: 0; -webkit-border-radius: 6px; border-radius: 6px; }
+#content #toc > :first-child { margin-top: 0; }
+#content #toc > :last-child { margin-bottom: 0; }
+#content #toc a { text-decoration: none; }
+
+#content #toctitle { font-weight: bold; font-family: ff-meta-web-pro-1, ff-meta-web-pro-2, Arial, "Helvetica Neue", sans-serif; font-size: 1em; padding-left: 0.125em; }
+
+#footer { max-width: 100%; background-color: black; padding: 1.25em; }
+
+#footer-text { color: white; line-height: 1.35; }
+
+.sect1 { padding-bottom: 1.25em; }
+
+.sect1 + .sect1 { border-top: 1px solid #dddddd; }
+
+#content h1 > a.anchor, h2 > a.anchor, h3 > a.anchor, #toctitle > a.anchor, .sidebarblock > .content > .title > a.anchor, h4 > a.anchor, h5 > a.anchor, h6 > a.anchor { position: absolute; width: 1em; margin-left: -1em; display: block; text-decoration: none; visibility: hidden; text-align: center; font-weight: normal; }
+#content h1 > a.anchor:before, h2 > a.anchor:before, h3 > a.anchor:before, #toctitle > a.anchor:before, .sidebarblock > .content > .title > a.anchor:before, h4 > a.anchor:before, h5 > a.anchor:before, h6 > a.anchor:before { content: '\00A7'; font-size: .85em; vertical-align: text-top; display: block; margin-top: 0.05em; }
+#content h1:hover > a.anchor, #content h1 > a.anchor:hover, h2:hover > a.anchor, h2 > a.anchor:hover, h3:hover > a.anchor, #toctitle:hover > a.anchor, .sidebarblock > .content > .title:hover > a.anchor, h3 > a.anchor:hover, #toctitle > a.anchor:hover, .sidebarblock > .content > .title > a.anchor:hover, h4:hover > a.anchor, h4 > a.anchor:hover, h5:hover > a.anchor, h5 > a.anchor:hover, h6:hover > a.anchor, h6 > a.anchor:hover { visibility: visible; }
+#content h1 > a.link, h2 > a.link, h3 > a.link, #toctitle > a.link, .sidebarblock > .content > .title > a.link, h4 > a.link, h5 > a.link, h6 > a.link { color: #465158; text-decoration: none; }
+#content h1 > a.link:hover, h2 > a.link:hover, h3 > a.link:hover, #toctitle > a.link:hover, .sidebarblock > .content > .title > a.link:hover, h4 > a.link:hover, h5 > a.link:hover, h6 > a.link:hover { color: #3b444a; }
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+
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+
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+
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+.admonitionblock > table td.icon img { max-width: none; }
+.admonitionblock > table td.icon .title { font-weight: bold; text-transform: uppercase; }
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+.admonitionblock > table td.content > :last-child > :last-child { margin-bottom: 0; }
+
+.exampleblock > .content { border-style: solid; border-width: 1px; border-color: #e6e6e6; margin-bottom: 1.25em; padding: 1.25em; background: white; -webkit-border-radius: 6px; border-radius: 6px; }
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+.exampleblock > .content > :last-child { margin-bottom: 0; }
+.exampleblock > .content h1, .exampleblock > .content h2, .exampleblock > .content h3, .exampleblock > .content #toctitle, .sidebarblock.exampleblock > .content > .title, .exampleblock > .content h4, .exampleblock > .content h5, .exampleblock > .content h6, .exampleblock > .content p { color: #333333; }
+.exampleblock > .content h1, .exampleblock > .content h2, .exampleblock > .content h3, .exampleblock > .content #toctitle, .sidebarblock.exampleblock > .content > .title, .exampleblock > .content h4, .exampleblock > .content h5, .exampleblock > .content h6 { line-height: 1; margin-bottom: 0.625em; }
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+
+.exampleblock.result > .content { -webkit-box-shadow: 0 1px 8px #d9d9d9; box-shadow: 0 1px 8px #d9d9d9; }
+
+.sidebarblock { border-style: solid; border-width: 1px; border-color: #d9d9d9; margin-bottom: 1.25em; padding: 1.25em; background: #f2f2f2; -webkit-border-radius: 6px; border-radius: 6px; }
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+.sidebarblock h1, .sidebarblock h2, .sidebarblock h3, .sidebarblock #toctitle, .sidebarblock > .content > .title, .sidebarblock h4, .sidebarblock h5, .sidebarblock h6 { line-height: 1; margin-bottom: 0.625em; }
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+.sidebarblock > .content > .title { color: #6c818f; margin-top: 0; line-height: 1.5; }
+
+.exampleblock > .content > :last-child > :last-child, .exampleblock > .content .olist > ol > li:last-child > :last-child, .exampleblock > .content .ulist > ul > li:last-child > :last-child, .exampleblock > .content .qlist > ol > li:last-child > :last-child, .sidebarblock > .content > :last-child > :last-child, .sidebarblock > .content .olist > ol > li:last-child > :last-child, .sidebarblock > .content .ulist > ul > li:last-child > :last-child, .sidebarblock > .content .qlist > ol > li:last-child > :last-child { margin-bottom: 0; }
+
+.literalblock pre:not([class]), .listingblock pre:not([class]) { background: #eeeeee; }
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+.literalblock pre > code, .literalblock pre[class] > code, .listingblock pre > code, .listingblock pre[class] > code { display: block; }
+@media only screen { .literalblock pre, .literalblock pre[class], .listingblock pre, .listingblock pre[class] { font-size: 0.76em; } }
+@media only screen and (min-width: 768px) { .literalblock pre, .literalblock pre[class], .listingblock pre, .listingblock pre[class] { font-size: 0.855em; } }
+@media only screen and (min-width: 1280px) { .literalblock pre, .literalblock pre[class], .listingblock pre, .listingblock pre[class] { font-size: 0.95em; } }
+
+.listingblock pre.highlight { padding: 0; }
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+
+.listingblock > .content { position: relative; }
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+
+.listingblock:hover code.asciidoc:before { content: "asciidoc"; }
+.listingblock:hover code.clojure:before { content: "clojure"; }
+.listingblock:hover code.css:before { content: "css"; }
+.listingblock:hover code.groovy:before { content: "groovy"; }
+.listingblock:hover code.html:before { content: "html"; }
+.listingblock:hover code.java:before { content: "java"; }
+.listingblock:hover code.javascript:before { content: "javascript"; }
+.listingblock:hover code.python:before { content: "python"; }
+.listingblock:hover code.ruby:before { content: "ruby"; }
+.listingblock:hover code.sass:before { content: "sass"; }
+.listingblock:hover code.scss:before { content: "scss"; }
+.listingblock:hover code.xml:before { content: "xml"; }
+.listingblock:hover code.yaml:before { content: "yaml"; }
+
+.listingblock.terminal pre .command:before { content: attr(data-prompt); padding-right: 0.5em; color: #999; }
+
+.listingblock.terminal pre .command:not([data-prompt]):before { content: '$'; }
+
+table.pyhltable { border: 0; margin-bottom: 0; }
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+table.pyhltable td { vertical-align: top; padding-top: 0; padding-bottom: 0; }
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+.highlight.pygments .lineno, table.pyhltable td:not(.code) { color: #999; padding-left: 0; padding-right: .5em; border-right: 1px solid #dddddd; }
+
+.highlight.pygments .lineno { display: inline-block; margin-right: .25em; }
+
+table.pyhltable .linenodiv { background-color: transparent !important; padding-right: 0 !important; }
+
+.quoteblock { margin: 0 0 1.25em; padding: 0.5625em 1.25em 0 1.1875em; border-left: 1px solid #dddddd; }
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+.quoteblock .attribution cite { display: block; margin-bottom: 0.625em; }
+
+table thead th, table tfoot th { font-weight: bold; }
+
+table.tableblock.grid-all { border-collapse: separate; border-spacing: 1px; -webkit-border-radius: 6px; border-radius: 6px; border-top: 0 solid #dddddd; border-bottom: 0 solid #dddddd; }
+
+table.tableblock.frame-topbot, table.tableblock.frame-none { border-left: 0; border-right: 0; }
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+table.tableblock.frame-sides, table.tableblock.frame-none { border-top: 0; border-bottom: 0; }
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+th.tableblock.halign-center, td.tableblock.halign-center { text-align: center; }
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+th.tableblock.valign-top, td.tableblock.valign-top { vertical-align: top; }
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+th.tableblock.valign-middle, td.tableblock.valign-middle { vertical-align: middle; }
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+tbody tr th { display: table-cell; line-height: 1.5; background: none; }
+
+tbody tr th, tbody tr th p, tfoot tr th, tfoot tr th p { color: #222222; font-weight: bold; }
+
+td > div.verse { white-space: pre; }
+
+ol { margin-left: 0.25em; }
+
+ul li ol { margin-left: 0; }
+
+dl dd { margin-left: 1.125em; }
+
+dl dd:last-child, dl dd:last-child > :last-child { margin-bottom: 0; }
+
+ol > li p, ul > li p, ul dd, ol dd, .olist .olist, .ulist .ulist, .ulist .olist, .olist .ulist { margin-bottom: 0.625em; }
+
+ul.unstyled, ol.unnumbered, ul.checklist, ul.none { list-style-type: none; }
+
+ul.unstyled, ol.unnumbered, ul.checklist { margin-left: 0.625em; }
+
+ul.checklist li > p:first-child > i[class^="icon-check"]:first-child, ul.checklist li > p:first-child > input[type="checkbox"]:first-child { margin-right: 0.25em; }
+
+ul.checklist li > p:first-child > input[type="checkbox"]:first-child { position: relative; top: 1px; }
+
+ul.inline { margin: 0 auto 0.625em auto; margin-left: -1.375em; margin-right: 0; padding: 0; list-style: none; overflow: hidden; }
+ul.inline > li { list-style: none; float: left; margin-left: 1.375em; display: block; }
+ul.inline > li > * { display: block; }
+
+.unstyled dl dt { font-weight: normal; font-style: normal; }
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+ol.upperalpha { list-style-type: upper-alpha; }
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+ol.lowerroman { list-style-type: lower-roman; }
+
+ol.upperroman { list-style-type: upper-roman; }
+
+ol.lowergreek { list-style-type: lower-greek; }
+
+.hdlist > table, .colist > table { border: 0; background: none; }
+.hdlist > table > tbody > tr, .colist > table > tbody > tr { background: none; }
+
+td.hdlist1 { padding-right: .75em; font-weight: bold; }
+
+td.hdlist1, td.hdlist2 { vertical-align: top; }
+
+.literalblock + .colist, .listingblock + .colist { margin-top: -0.5em; }
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+.colist > table tr > td:first-of-type { padding: 0 .75em; line-height: 1; }
+.colist > table tr > td:last-of-type { padding: 0.25em 0; }
+
+.qanda > ol > li > p > em:only-child { color: #373737; }
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+
+.image.left, .image.right { margin-top: 0.25em; margin-bottom: 0.25em; display: inline-block; line-height: 0; }
+.image.left { margin-right: 0.625em; }
+.image.right { margin-left: 0.625em; }
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+a.image { text-decoration: none; }
+
+span.footnote, span.footnoteref { vertical-align: super; font-size: 0.875em; }
+span.footnote a, span.footnoteref a { text-decoration: none; }
+
+#footnotes { padding-top: 0.75em; padding-bottom: 0.75em; margin-bottom: 0.625em; }
+#footnotes hr { width: 20%; min-width: 6.25em; margin: -.25em 0 .75em 0; border-width: 1px 0 0 0; }
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+#footnotes .footnote a:first-of-type { font-weight: bold; text-decoration: none; }
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+
+#content #footnotes { margin-top: -0.625em; margin-bottom: 0; padding: 0.75em 0; }
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+.gist .file-data > table { border: none; background: #fff; width: 100%; margin-bottom: 0; }
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+.small { font-size: smaller; }
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+
+.white-background { background-color: #fafafa; }
+
+.yellow { color: #bfbf00; }
+
+.yellow-background { background-color: #fafa00; }
+
+span.icon > [class^="icon-"], span.icon > [class*=" icon-"] { cursor: default; }
+
+.admonitionblock td.icon [class^="icon-"]:before { font-size: 2.5em; text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5); cursor: default; }
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+.admonitionblock td.icon .icon-warning:before { content: "\f071"; color: #bf6900; }
+.admonitionblock td.icon .icon-caution:before { content: "\f06d"; color: #bf3400; }
+.admonitionblock td.icon .icon-important:before { content: "\f06a"; color: #bf0000; }
+
+.conum { display: inline-block; color: white !important; background-color: black; -webkit-border-radius: 100px; border-radius: 100px; text-align: center; width: 20px; height: 20px; font-size: 12px; font-weight: bold; line-height: 20px; font-family: Arial, sans-serif; font-style: normal; position: relative; top: -2px; letter-spacing: -1px; }
+.conum * { color: white !important; }
+.conum + b { display: none; }
+.conum:after { content: attr(data-value); }
+.conum:not([data-value]):empty { display: none; }
+
+.listingblock code { white-space: pre; overflow: auto; overflow-wrap: normal; /* needed for webkit browsers */ }
+
+#toc ul.sectlevel0 > li > a { font-style: normal; font-weight: bold; }
+
+h4 { color: #6c818f; }
+
+.literalblock > .content > pre, .listingblock > .content > pre { -webkit-border-radius: 6px; border-radius: 6px; margin-left: 2em; margin-right: 2em; }
+
+.admonitionblock { margin-left: 2em; margin-right: 2em; }
+.admonitionblock > table { border: 1px solid #609060; border-top-width: 1.5em; background-color: #e9ffe9; border-collapse: separate; -webkit-border-radius: 0; border-radius: 0; }
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+.admonitionblock > table td.content { padding: .5em 1em; color: black; font-size: .9em; border-left: none; }
+
+.sidebarblock { background-color: #e8ecef; border-color: #ccc; }
+.sidebarblock > .content > .title { color: #444444; }
+
+table.tableblock.grid-all { border-collapse: collapse; -webkit-border-radius: 0; border-radius: 0; }
+table.tableblock.grid-all th.tableblock, table.tableblock.grid-all td.tableblock { border-bottom: 1px solid #aaa; }
+
+#footer { background-color: #465158; padding: 2em; }
+
+#footer-text { color: #eee; font-size: 0.8em; text-align: center; }
+
+.invisible {color: rgba(0,0,0,0); font-size: 0;}
+</style>
+<style>
+/* Stylesheet for CodeRay to match GitHub theme | MIT License | http://foundation.zurb.com */
+/*pre.CodeRay {background-color:#f7f7f8;}*/
+.CodeRay .line-numbers{border-right:1px solid #d8d8d8;padding:0 0.5em 0 .25em}
+.CodeRay span.line-numbers{display:inline-block;margin-right:.5em;color:rgba(0,0,0,.3)}
+.CodeRay .line-numbers strong{color:rgba(0,0,0,.4)}
+table.CodeRay{border-collapse:separate;border-spacing:0;margin-bottom:0;border:0;background:none}
+table.CodeRay td{vertical-align: top;line-height:1.45}
+table.CodeRay td.line-numbers{text-align:right}
+table.CodeRay td.line-numbers>pre{padding:0;color:rgba(0,0,0,.3)}
+table.CodeRay td.code{padding:0 0 0 .5em}
+table.CodeRay td.code>pre{padding:0}
+.CodeRay .debug{color:#fff !important;background:#000080 !important}
+.CodeRay .annotation{color:#007}
+.CodeRay .attribute-name{color:#000080}
+.CodeRay .attribute-value{color:#700}
+.CodeRay .binary{color:#509}
+.CodeRay .comment{color:#998;font-style:italic}
+.CodeRay .char{color:#04d}
+.CodeRay .char .content{color:#04d}
+.CodeRay .char .delimiter{color:#039}
+.CodeRay .class{color:#458;font-weight:bold}
+.CodeRay .complex{color:#a08}
+.CodeRay .constant,.CodeRay .predefined-constant{color:#008080}
+.CodeRay .color{color:#099}
+.CodeRay .class-variable{color:#369}
+.CodeRay .decorator{color:#b0b}
+.CodeRay .definition{color:#099}
+.CodeRay .delimiter{color:#000}
+.CodeRay .doc{color:#970}
+.CodeRay .doctype{color:#34b}
+.CodeRay .doc-string{color:#d42}
+.CodeRay .escape{color:#666}
+.CodeRay .entity{color:#800}
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+.CodeRay .head .head{color:#f4f}
+</style>
+</head>
+<body class="article">
+<div id="header">
+</div>
+<div id="content">
+<div class="imageblock">
+<div class="content">
+<a class="image" href="http://tinkerpop.apache.org"><img src="../../images/apache-tinkerpop-logo.png" alt="apache tinkerpop logo" width="500"></a>
+</div>
+</div>
+<div class="paragraph">
+<p><strong>3.3.2-SNAPSHOT</strong></p>
+</div>
+<div class="sect1">
+<h2 id="_gremlin_s_anatomy">Gremlin’s Anatomy</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p><span class="image" style="float: left"><img src="../../images/gremlin-anatomy.png" alt="gremlin anatomy" width="160"></span>The Gremlin language is typically described by the individual
+<a href="http://tinkerpop.apache.org/docs/3.3.2-SNAPSHOT/reference/#graph-traversal-steps">steps</a> that make up the language, but it
+is worth taking a look at the component parts of Gremlin that make a traversal work. Understanding these component
+parts make it possible to discuss and understand more advanced Gremlin topics, such as
+<a href="http://tinkerpop.apache.org/docs/3.3.2-SNAPSHOT/reference/#dsl">Gremlin DSL</a> development and Gremlin debugging techniques.
+Ultimately, Gremlin’s Anatomy provides a foundational understanding for helping to read and follow Gremlin of arbitrary
+complexity, which will lead you to more easily identify traversal patterns and thus enable you to craft better
+traversals of your own.</p>
+</div>
+<div class="admonitionblock note">
+<table>
+<tr>
+<td class="icon">
+<div class="title">Note</div>
+</td>
+<td class="content">
+This tutorial is based on Stephen Mallette’s presentation on Gremlin’s Anatomy - the slides for that presentation
+can be found <a href="https://www.slideshare.net/StephenMallette/gremlins-anatomy-88713465">here</a>.
+</td>
+</tr>
+</table>
+</div>
+<div class="paragraph">
+<p>The component parts of a Gremlin traversal can be all be identified from the following code:</p>
+</div>
+<div class="listingblock">
+<div class="content">
+<pre class="CodeRay highlight"><code data-lang="groovy">gremlin> g.V().
+ has(<span class="string"><span class="delimiter">'</span><span class="content">person</span><span class="delimiter">'</span></span>, <span class="string"><span class="delimiter">'</span><span class="content">name</span><span class="delimiter">'</span></span>, within(<span class="string"><span class="delimiter">'</span><span class="content">marko</span><span class="delimiter">'</span></span>, <span class="string"><span class="delimiter">'</span><span class="content">josh</span><span class="delimiter">'</span></span>)).
+ outE().
+ groupCount().
+ by(label()).next()
+==>created=<span class="integer">3</span>
+==>knows=<span class="integer">2</span></code></pre>
+</div>
+</div>
+<div class="paragraph">
+<p>In plain English, this traversal requests an out-edge label distribution for "marko" and "josh". The following
+sections, will pick this traversal apart to show each component part and discuss it in some detail.</p>
+</div>
+<div class="sect2">
+<h3 id="_graphtraversalsource">GraphTraversalSource</h3>
+<div class="paragraph">
+<p><em>`g.V()`</em> - You are likely well acquainted with this bit of Gremlin. It is in virtually every traversal you read in
+documentation, blog posts, or examples and is likely the start of most every traversal you will write in your own
+applications.</p>
+</div>
+<div class="listingblock">
+<div class="content">
+<pre class="CodeRay highlight"><code data-lang="groovy">gremlin> g.V()
+==>v[<span class="integer">1</span>]
+==>v[<span class="integer">2</span>]
+==>v[<span class="integer">3</span>]
+==>v[<span class="integer">4</span>]
+==>v[<span class="integer">5</span>]
+==>v[<span class="integer">6</span>]</code></pre>
+</div>
+</div>
+<div class="paragraph">
+<p>While it is well known that <code>g.V()</code> returns a list of all the vertices in the graph, the technical underpinnings of
+this ubiquitous statement may be less so well established. First of all, the <code>g</code> is a variable. It could have been
+<code>x</code>, <code>y</code> or anything else, but by convention, you will normally see <code>g</code>. This <code>g</code> is a <code>GraphTraversalSource</code>
+and it spawns <code>GraphTraversal</code> instances with start steps. <code>V()</code> is one such start step, but there are others like
+<code>E</code> for getting all the edges in the graph. The important part is that these start steps begin the traversal.</p>
+</div>
+<div class="paragraph">
+<p>In addition to exposing the available start steps, the <code>GraphTraversalSource</code> also holds configuration options (perhaps
+think of them as pre-instructions for Gremlin) to be used for the traversal execution. The methods that allow you to
+set these configurations are prefixed by the word "with". Here are a few examples to consider:</p>
+</div>
+<div class="listingblock">
+<div class="content">
+<pre class="CodeRay highlight"><code data-lang="groovy">g.withStrategies(SubgraphStrategy.build().vertices(hasLabel(<span class="string"><span class="delimiter">'</span><span class="content">person</span><span class="delimiter">'</span></span>)).create()). <span class="invisible">//</span><b class="conum">1</b>
+ V().has(<span class="string"><span class="delimiter">'</span><span class="content">name</span><span class="delimiter">'</span></span>,<span class="string"><span class="delimiter">'</span><span class="content">marko</span><span class="delimiter">'</span></span>).out().values(<span class="string"><span class="delimiter">'</span><span class="content">name</span><span class="delimiter">'</span></span>)
+g.withSack(<span class="float">1.0f</span>).V().sack() <span class="invisible">//</span><b class="conum">2</b>
+g.withComputer().V().pageRank() <span class="invisible">//</span><b class="conum">3</b></code></pre>
+</div>
+</div>
+<div class="colist arabic">
+<ol>
+<li>
+<p>Define a <a href="http://tinkerpop.apache.org/docs/3.3.2-SNAPSHOT/reference/#traversalstrategy">strategy</a> for the traversal</p>
+</li>
+<li>
+<p>Define an initial <a href="http://tinkerpop.apache.org/docs/3.3.2-SNAPSHOT/reference/#sack-step">sack</a> value</p>
+</li>
+<li>
+<p>Define a <a href="http://tinkerpop.apache.org/docs/3.3.2-SNAPSHOT/reference/#graphcomputer">GraphComputer</a> to use in conjunction
+with a <code>VertexProgram</code> for OLAP based traversals - for example, see
+<a href="http://tinkerpop.apache.org/docs/3.3.2-SNAPSHOT/reference/#sparkgraphcomputer">Spark</a></p>
+</li>
+</ol>
+</div>
+<div class="admonitionblock important">
+<table>
+<tr>
+<td class="icon">
+<div class="title">Important</div>
+</td>
+<td class="content">
+How you instantiate the <code>GraphTraversalSource</code> is highly depending on the graph database implementation that
+you are using. Typically, they are instantiated from a <code>Graph</code> instance with the <code>traversal()</code> method, but some graph
+databases, ones that are managed or "server-oriented", will simply give you a <code>g</code> to work with. Consult the
+documentation of your graph database to determine how the <code>GraphTraversalSource</code> is constructed.
+</td>
+</tr>
+</table>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_graphtraversal">GraphTraversal</h3>
+<div class="paragraph">
+<p>As you now know, a <code>GraphTraversal</code> is spawned from the start steps of a <code>GraphTraversalSource</code>. The <code>GraphTraversal</code>
+contain the steps that make up the Gremlin language. Each step returns a <code>GraphTraversal</code> so that the steps can be
+chained together in a fluent fashion. Revisiting the example from above:</p>
+</div>
+<div class="listingblock">
+<div class="content">
+<pre class="CodeRay highlight"><code data-lang="groovy">gremlin> g.V().
+ has(<span class="string"><span class="delimiter">'</span><span class="content">person</span><span class="delimiter">'</span></span>, <span class="string"><span class="delimiter">'</span><span class="content">name</span><span class="delimiter">'</span></span>, within(<span class="string"><span class="delimiter">'</span><span class="content">marko</span><span class="delimiter">'</span></span>, <span class="string"><span class="delimiter">'</span><span class="content">josh</span><span class="delimiter">'</span></span>)).
+ outE().
+ groupCount().
+ by(label()).next()
+==>created=<span class="integer">3</span>
+==>knows=<span class="integer">2</span></code></pre>
+</div>
+</div>
+<div class="paragraph">
+<p>the <code>GraphTraversal</code> components are represented by the <code>has()</code>, <code>outE()</code> and <code>groupCount()</code> steps. The key to reading
+this Gremlin is to realize that the output of one step becomes the input to the next. Therefore, if you consider the
+start step of <code>V()</code> and realize that it returns vertices in the graph, the input to <code>has()</code> is going to be a <code>Vertex</code>.
+The <code>has()</code> step is a filtering step and will take the vertices that are passed into it and block any that do not
+meet the criteria it has specified. In this case, that means that the output of the <code>has()</code> step is vertices that have
+the label of "person" and the "name" property value of "josh" or "marko".</p>
+</div>
+<div class="imageblock">
+<div class="content">
+<img src="../../images/gremlin-anatomy-filter.png" alt="gremlin anatomy filter" width="600">
+</div>
+</div>
+<div class="paragraph">
+<p>Given that you know the output of <code>has()</code>, you then also know the input to <code>outE()</code>. Recall that <code>outE()</code> is a
+navigational step in that it enables movement about the graph. In this case, <code>outE()</code> tells Gremlin to take the
+incoming "marko" and "josh" vertices and traverse their outgoing edges as the output.</p>
+</div>
+<div class="imageblock">
+<div class="content">
+<img src="../../images/gremlin-anatomy-navigate.png" alt="gremlin anatomy navigate" width="600">
+</div>
+</div>
+<div class="paragraph">
+<p>Now that it is clear that the output of <code>outE()</code> is an edge, you are aware of the input to <code>groupCount()</code> - edges.
+The <code>groupCount()</code> step requires a bit more discussion of other Gremlin components and will thus be examined in the
+following sections. At this point, it is simply worth noting that the output of <code>groupCount()</code> is a <code>Map</code> and if a
+Gremlin step followed it, the input to that step would therefore be a <code>Map</code>.</p>
+</div>
+<div class="paragraph">
+<p>The previous paragraph ended with an interesting point, in that it implied that there were no "steps" following
+<code>groupCount()</code>. Clearly, <code>groupCount()</code> is not the last function to be called in that Gremlin statement so you might
+wonder what the remaining bits are, specifically: <code>by(label()).next()</code>. The following sections will discuss those
+remaining pieces.</p>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_step_modulators">Step Modulators</h3>
+<div class="paragraph">
+<p>It’s been explained in several ways now that the output of one step becomes the input to the next, so surely the <code>Map</code>
+produced by <code>groupCount()</code> will feed the <code>by()</code> step. As alluded to at the end of the previous section, that
+expectation is not correct. Technically, <code>by()</code> is not a step. It is a step modulator. A step modulator modifies the
+behavior of the previous step. In this case, it is telling Gremlin how the key for the <code>groupCount()</code> should be
+determined. Or said another way in the context of the example, it answers this question: What do you want the "marko"
+and "josh" edges to be grouped by?</p>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_anonymous_traversals">Anonymous Traversals</h3>
+<div class="paragraph">
+<p>In this case, the answer to that question is provided by the anonymous traversal <code>label()</code> as the argument to the step
+modulator <code>by()</code>. An anonymous traversal is a traversal that is not bound to a <code>GraphTraversalSource</code>. It is
+constructed from the double underscore class (i.e. <code><em></code>), which exposes static functions to spawn the anonymous
+traversals. Typically, the double underscore is not visible in examples and code as by convention, TinkerPop typically
+recommends that the functions of that class be exposed in a standalone fashion. In Java, that would mean
+<a href="https://docs.oracle.com/javase/7/docs/technotes/guides/language/static-import.html">statically importing</a> the
+methods, thus allowing <code></em>.label()</code> to be referred to simply as <code>label()</code>.</p>
+</div>
+<div class="admonitionblock note">
+<table>
+<tr>
+<td class="icon">
+<div class="title">Note</div>
+</td>
+<td class="content">
+In Java, the full package name for the <code>__</code> is <code>org.apache.tinkerpop.gremlin.process.traversal.dsl.graph</code>.
+</td>
+</tr>
+</table>
+</div>
+<div class="paragraph">
+<p>In the context of the example traversal, you can imagine Gremlin getting to the <code>groupCount()</code> step with a "marko" or
+"josh" outgoing edge, checking the <code>by()</code> modulator to see "what to group by", and then putting edges into buckets
+by their <code>label()</code> and incrementing a counter on each bucket.</p>
+</div>
+<div class="imageblock">
+<div class="content">
+<img src="../../images/gremlin-anatomy-group.png" alt="gremlin anatomy group" width="600">
+</div>
+</div>
+<div class="paragraph">
+<p>The output is thus an edge label distribution for the outgoing edges of the "marko" and "josh" vertices.</p>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_terminal_step">Terminal Step</h3>
+<div class="paragraph">
+<p>Terminal steps are different from the <code>GraphTraversal</code> steps in that terminal steps do not return a <code>GraphTraversal</code>
+instance, but instead return the result of the <code>GraphTraversal</code>. In the case of the example, <code>next()</code> is the terminal
+step and it returns the <code>Map</code> constructed in the <code>groupCount()</code> step. Other examples of terminal steps include:
+<code>hasNext()</code>, <code>toList()</code>, and <code>iterate()</code>. Without terminal steps, you don’t have a result. You only have a
+<code>GraphTraversal</code></p>
+</div>
+<div class="admonitionblock note">
+<table>
+<tr>
+<td class="icon">
+<div class="title">Note</div>
+</td>
+<td class="content">
+You can read more about traversal iteration in the
+<a href="http://tinkerpop.apache.org/docs/3.3.2-SNAPSHOT/tutorials/the-gremlin-console/#result-iteration">Gremlin Console Tutorial</a>.
+</td>
+</tr>
+</table>
+</div>
+</div>
+<div class="sect2">
+<h3 id="_expressions">Expressions</h3>
+<div class="paragraph">
+<p>It is worth backing up a moment to re-examine the <code>has()</code> step. Now that you have come to understand anonymous
+traversals, it would be reasonable to make the assumption that the <code>within()</code> argument to <code>has()</code> falls into that
+category. It does not. The <code>within()</code> option is not a step either, but instead, something called an expression. An
+expression typically refers to anything not mentioned in the previously described Gremlin component categories that
+can make Gremlin easier to read, write and maintain. Common examples of expressions would be string tokens, enum
+values, and classes with static methods that might spawn certain required values.</p>
+</div>
+<div class="paragraph">
+<p>A concrete example would be the class from which <code>within()</code> is called - <code>P</code>. The <code>P</code> class spawns <code>Predicate</code> values
+that can be used as arguments for certain traversals teps. Another example would be the <code>T</code> enum which provides a type
+safe way to reference <code>id</code> and <code>label</code> keys in a traversal. Like anonymous traversals, these classes are usually
+statically imported so that instead of having to write <code>P.within()</code>, you can simply write <code>within()</code>, as shown in the
+example.</p>
+</div>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_conclusion">Conclusion</h2>
+<div class="sectionbody">
+<div class="paragraph">
+<p>There’s much more to a traversal than just a bunch of steps. Gremlin’s Anatomy puts names to each of these component
+parts of a traversal and explains how they connect together. Understanding these components part should help provide
+more insight into how Gremlin works and help you grow in your Gremlin abilities.</p>
+</div>
+</div>
+</div>
+</div>
+<div id="footer">
+<div id="footer-text">
+Last updated 2018-03-28 08:12:42 EDT
+</div>
+</div>
+</body>
+</html>