<!DOCTYPE HTML><html lang="{{ language }}" dir="{{ text_direction }}">    <head>        <!-- Book generated using mdBook -->        <meta charset="UTF-8">        <style>            @view-transition {                navigation: auto;            }            ::view-transition-old(root),            ::view-transition-new(root) {                animation-duration: 0.05s;            }        </style>        <!-- Theme initialization - must run before any CSS loads to prevent flicker -->        <script>            (function() {                var theme;                try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { }                if (theme === null || theme === undefined) {                    theme = window.matchMedia("(prefers-color-scheme: dark)").matches ? "dark" : "light";                }                var html = document.documentElement;                html.setAttribute('data-theme', theme);                html.setAttribute('data-color-scheme', theme);                html.className = theme;            })();        </script>        <title>{{ title }}</title>        {{#if is_print }}        <meta name="robots" content="noindex">        {{/if}}        {{#if base_url}}        <base href="{{ base_url }}">        {{/if}}          <!-- Custom HTML head -->        {{> head}}         <meta name="description" content="#description#">        <meta name="viewport" content="width=device-width, initial-scale=1">        <meta name="theme-color" content="#ffffff">         <link rel="shortcut icon" href="{{ path_to_root }}favicon.png">        <link rel="stylesheet" href="{{ path_to_root }}css/variables.css">        <link rel="stylesheet" href="{{ path_to_root }}css/general.css">        <link rel="stylesheet" href="{{ path_to_root }}css/chrome.css">        {{#if print_enable}}        <link rel="stylesheet" href="{{ path_to_root }}css/print.css" media="print">        {{/if}}         <!-- Fonts -->        <link rel="stylesheet" href="{{ path_to_root }}FontAwesome/css/font-awesome.css">        {{#if copy_fonts}}        <link rel="stylesheet" href="{{ path_to_root }}fonts/fonts.css">        {{/if}}         <!-- Highlight.js Stylesheets -->        <link rel="stylesheet" href="{{ path_to_root }}highlight.css">        <link rel="stylesheet" href="{{ path_to_root }}tomorrow-night.css">        <link rel="stylesheet" href="{{ path_to_root }}ayu-highlight.css">         <!-- Custom theme stylesheets -->        {{#each additional_css}}        <link rel="stylesheet" href="{{ ../path_to_root }}{{ this }}">        {{/each}}         {{#if mathjax_support}}        <!-- MathJax -->        <script async src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>        {{/if}}    </head>    <body class="no-js">    <div id="body-container">        <div class="noise-pattern" style="background-image: url('https://cdn.zed.dev/images/noise.png');"></div>         <!-- Provide site root to javascript -->        <script>            var path_to_root = "{{ path_to_root }}";            var default_theme = window.matchMedia("(prefers-color-scheme: dark)").matches ? "{{ preferred_dark_theme }}" : "{{ default_theme }}";            // Mark as JS-enabled            document.body.classList.remove('no-js');            document.body.classList.add('js');        </script>         <header class="header-bar">            <div class="left-container">                <a href="/" class="logo-nav">                    <img src="https://zed.dev/logo_icon.webp" class="icon-logo-img" alt="Zed Industries" style="height: 26px;">                </a>                <button id="sidebar-toggle" class="icon-button ib-hidden-desktop" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar" aria-expanded="false">                    <i class="fa fa-bars"></i>                </button>            </div>            {{#if search_enabled}}            <button id="search-toggle" class="search-button" type="button" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">                <i class="icon fa fa-search"></i>                <span class="search-content-desktop">                    <span class="placeholder">Search docs…</span>                    <kbd>S</kbd>                </span>                <span class="search-content-mobile">                    <span class="placeholder">Search…</span>                </span>            </button>            {{/if}}            <div class="right-container">                <button id="theme-toggle" class="icon-button" type="button" title="Change Theme" aria-label="Change Theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">                    <i class="fa fa-paint-brush"></i>                </button>                 <ul id="theme-list" class="theme-popup" aria-label="Themes" role="menu">                    <li role="none"><button role="menuitem" class="theme" id="light">Light</button></li>                    <li role="none"><button role="menuitem" class="theme" id="dark">Dark</button></li>                </ul>                 <button id="copy-markdown-toggle" class="icon-button ib-hidden-mobile" type="button" title="Copy Page as Markdown" aria-label="Copy page as markdown">                    <i class="fa fa-copy"></i>                </button>                 <a class="download-button" href="https://zed.dev/download" title="Download Zed" aria-label="Download Zed">                    Download                </a>                {{#if git_repository_url}}                <a href="{{git_repository_url}}" title="Git repository" aria-label="Git repository">                    <i id="git-repository-button" class="fa {{git_repository_icon}}"></i>                </a>                {{/if}}                {{#if git_repository_edit_url}}                <a href="{{git_repository_edit_url}}" title="Suggest an edit" aria-label="Suggest an edit">                    <i id="git-edit-button" class="fa fa-edit"></i>                </a>                {{/if}}            </div>        </header>         <div id="page-wrapper" class="page-wrapper">             {{#if search_enabled}}            <div class="search-container">                <div id="search-wrapper" class="search-modal hidden">                    <form id="searchbar-outer" class="searchbar-outer">                        <input type="search" id="searchbar" name="searchbar" placeholder="Search…" aria-controls="searchresults-outer" aria-describedby="searchresults-header">                    </form>                    <div id="searchresults-outer" class="searchresults-outer">                        <div id="searchresults-header" class="searchresults-header"></div>                        <ul id="searchresults">                        </ul>                    </div>                </div>            </div>            {{/if}}             <nav id="sidebar" class="sidebar" aria-label="Table of contents">                <div class="sidebar-scrollbox">                    {{#toc}}{{/toc}}                </div>                <div style="display: none;" id="sidebar-resize-handle" class="sidebar-resize-handle">                    <div class="sidebar-resize-indicator"></div>                </div>            </nav>             <!-- Mobile sidebar toggle -->            <script>                (function() {                    var sidebarToggle = document.getElementById('sidebar-toggle');                    var sidebar = document.getElementById('sidebar');                     sidebarToggle.addEventListener('click', function() {                        var isOpen = document.body.classList.toggle('sidebar-open');                        sidebarToggle.setAttribute('aria-expanded', isOpen);                        sidebar.setAttribute('aria-hidden', !isOpen);                    });                     // Close sidebar when clicking a link inside it (on mobile)                    sidebar.addEventListener('click', function(e) {                        if (e.target.tagName === 'A' && window.innerWidth < 620) {                            document.body.classList.remove('sidebar-open');                            sidebarToggle.setAttribute('aria-expanded', 'false');                            sidebar.setAttribute('aria-hidden', 'true');                        }                    });                })();            </script>             <!-- Search backdrop handlers -->            <script>                (function() {                    var searchWrapper = document.getElementById('search-wrapper');                    var searchContainer = document.querySelector('.search-container');                    var searchResults = document.getElementById('searchresults');                     if (!searchWrapper || !searchContainer) return;                     searchContainer.addEventListener('click', function(e) {                        if (e.target === searchContainer) {                            searchWrapper.classList.add('hidden');                        }                    });                     if (searchResults) {                        searchResults.addEventListener('click', function(e) {                            if (e.target.tagName === 'A' || e.target.closest('a')) {                                searchWrapper.classList.add('hidden');                            }                        });                    }                })();            </script>             <!-- Insert section spacers and apply collapsed state before scroll restoration to prevent layout shift/flicker -->            <script>                (function() {                    var chapterList = document.querySelector('#sidebar ol.chapter');                    if (!chapterList) return;                     var collapsedSections = [];                    try {                        var stored = sessionStorage.getItem('sidebar-collapsed-sections');                        if (stored) {                            collapsedSections = JSON.parse(stored);                        }                    } catch (e) {}                     var partTitles = chapterList.querySelectorAll('li.part-title');                    var previousPartTitle = null;                     partTitles.forEach(function(partTitle, index) {                        partTitle._sectionName = partTitle.textContent.trim();                         // Insert a spacer before this part-title (except for the first one)                        if (index > 0) {                            var spacer = document.createElement('li');                            spacer.className = 'section-spacer';                            partTitle.parentNode.insertBefore(spacer, partTitle);                             if (previousPartTitle) {                                previousPartTitle._spacerAfter = spacer;                            }                        }                         var isCollapsed = collapsedSections.includes(partTitle._sectionName);                        if (isCollapsed) {                            // Hide all siblings until next part-title                            var sibling = partTitle.nextElementSibling;                            while (sibling && !sibling.classList.contains('part-title')) {                                sibling.classList.add('section-hidden');                                sibling = sibling.nextElementSibling;                            }                            // Hide the spacer after this section (will be set on next iteration)                            partTitle._isCollapsed = true;                        }                         // If previous section was collapsed, hide its spacer                        if (previousPartTitle && previousPartTitle._isCollapsed && previousPartTitle._spacerAfter) {                            previousPartTitle._spacerAfter.classList.add('section-hidden');                        }                         previousPartTitle = partTitle;                    });                     // Handle the last section's spacer if it was collapsed                    if (previousPartTitle && previousPartTitle._isCollapsed && previousPartTitle._spacerAfter) {                        previousPartTitle._spacerAfter.classList.add('section-hidden');                    }                })();            </script>             <!-- Track and set sidebar scroll position -->            <script>                var sidebarScrollbox = document.querySelector('#sidebar .sidebar-scrollbox');                sidebarScrollbox.addEventListener('click', function(e) {                    if (e.target.tagName === 'A') {                        sessionStorage.setItem('sidebar-scroll', sidebarScrollbox.scrollTop);                    }                }, { passive: true });                var sidebarScrollTop = sessionStorage.getItem('sidebar-scroll');                sessionStorage.removeItem('sidebar-scroll');                if (sidebarScrollTop) {                    // preserve sidebar scroll position when navigating via links within sidebar                    sidebarScrollbox.scrollTop = sidebarScrollTop;                } else {                    // scroll sidebar to current active section when navigating via "next/previous chapter" buttons                    var activeSection = document.querySelector('#sidebar .active');                    if (activeSection) {                        activeSection.scrollIntoView({ block: 'center' });                    }                }            </script>             <div class="page">                <div id="content" class="content">                    <main>                      {{{ content }}}                        <div class="footer-buttons">                            {{#previous}}                            <a rel="prev" href="{{ path_to_root }}{{link}}" class="footer-button" title="{{title}}">                                <i class="fa fa-angle-left"></i>                                {{title}}                            </a>                            {{/previous}}                            {{#next}}                            <a rel="next" href="{{ path_to_root }}{{link}}" class="footer-button" title="{{title}}">                                {{title}}                                <i class="fa fa-angle-right"></i>                            </a>                            {{/next}}                        </div>                    </main>                    <div class="toc-container">                        <nav class="pagetoc"></nav>                    </div>                    <!-- Immediately detect if page has headins that are not h1 to prevent flicker -->                    <script>                        (function() {                            var tocContainer = document.querySelector('.toc-container');                            var headers = document.querySelectorAll('.header');                            var hasNonH1Headers = false;                            for (var i = 0; i < headers.length; i++) {                                var parent = headers[i].parentElement;                                if (parent && !parent.tagName.toLowerCase().startsWith('h1')) {                                    hasNonH1Headers = true;                                    break;                                }                            }                            if (hasNonH1Headers) {                                tocContainer.classList.add('has-toc');                            } else {                                tocContainer.classList.add('no-toc');                            }                        })();                    </script>                </div>            </div>        </div>         {{#if live_reload_endpoint}}        <!-- Livereload script (if served using the cli tool) -->        <script>            const wsProtocol = location.protocol === 'https:' ? 'wss:' : 'ws:';            const wsAddress = wsProtocol + "//" + location.host + "/" + "{{{live_reload_endpoint}}}";            const socket = new WebSocket(wsAddress);            socket.onmessage = function (event) {                if (event.data === "reload") {                    socket.close();                    location.reload();                }            };             window.onbeforeunload = function() {                socket.close();            }        </script>        {{/if}}         {{#if playground_line_numbers}}        <script>            window.playground_line_numbers = true;        </script>        {{/if}}         {{#if playground_copyable}}        <script>            window.playground_copyable = true;        </script>        {{/if}}         {{#if playground_js}}        <script src="{{ path_to_root }}ace.js"></script>        <script src="{{ path_to_root }}editor.js"></script>        <script src="{{ path_to_root }}mode-rust.js"></script>        <script src="{{ path_to_root }}theme-dawn.js"></script>        <script src="{{ path_to_root }}theme-tomorrow_night.js"></script>        {{/if}}         {{#if search_js}}        <script src="{{ path_to_root }}elasticlunr.min.js"></script>        <script src="{{ path_to_root }}mark.min.js"></script>        <script src="{{ path_to_root }}searcher.js"></script>        {{/if}}         <script src="{{ path_to_root }}clipboard.min.js"></script>        <script src="{{ path_to_root }}highlight.js"></script>        <script src="{{ path_to_root }}book.js"></script>         <!-- Custom JS scripts -->        {{#each additional_js}}        <script src="{{ ../path_to_root }}{{this}}"></script>        {{/each}}         {{#if is_print}}        {{#if mathjax_support}}        <script>        window.addEventListener('load', function() {            MathJax.Hub.Register.StartupHook('End', function() {                window.setTimeout(window.print, 100);            });        });        </script>        {{else}}        <script>        window.addEventListener('load', function() {            window.setTimeout(window.print, 100);        });        </script>        {{/if}}        {{/if}}         <!-- Amplitude Analytics -->        <script>          (function() {            var amplitudeKey = '#amplitude_key#';            if (amplitudeKey && amplitudeKey.indexOf('#') === -1) {              var script = document.createElement('script');              script.src = 'https://cdn.amplitude.com/script/' + amplitudeKey + '.js';              script.onload = function() {                window.amplitude.init(amplitudeKey, {                  fetchRemoteConfig: true,                  autocapture: true                });              };              document.head.appendChild(script);            }          })();        </script>    </div>    </body></html>