feat: Implement sidebar for api docs

public/css/global.css

@@ -51,6 +51,7 @@
         --c-primary: rgb(255, 180, 180);
         --c-pink: #374259;
         --c-link: #0284c7;
+        --c-border-1: #909090;
 
         --c-nav-bg: rgb(255, 247, 255, 0.5);
         --c-secondary: rgba(255, 255, 240, 0.5);

public/css/pages.css

@@ -1,5 +1,5 @@
 
-.markdown h1 {
+.markdown > h1 {
     font-size: 2.25rem;
     line-height: 2.5rem;
     margin-bottom: 1rem;
@@ -8,9 +8,10 @@
     opacity: 0.9;
     font-weight: 700;
     color: var(--c-text-2);
+    scroll-margin-top: 50px;
 }
 
-.markdown h2 {
+.markdown > h2 {
     /* use these tailwind classes: text-2xl mt-10 mb-4 font-display opacity-90 font-bold text-c-text-2 */
     font-size: 1.5rem;
     line-height: 2rem;
@@ -20,9 +21,10 @@
     opacity: 0.9;
     font-weight: 600;
     color: var(--c-text-2);
+    scroll-margin-top: 5rem;
 }
 
-.markdown h2::before {
+.markdown > h2::before {
     content: "#";
     display: block;
     height: 0;
@@ -31,7 +33,12 @@
     opacity: 0.2;
 }
 
-.markdown h3 {
+.markdown > h2:target::before {
+    color: var(--c-thp);
+    opacity: 1;
+}
+
+.markdown > h3 {
     font-size: 1.35rem;
     line-height: 1.75rem;
     margin-bottom: 1rem;
@@ -40,9 +47,10 @@
     opacity: 0.9;
     font-weight: 400;
     color: var(--c-text-2);
+    scroll-margin-top: 5rem;
 }
 
-.markdown h3::before {
+.markdown > h3::before {
     content: "##";
     display: block;
     height: 0;
@@ -51,6 +59,11 @@
     opacity: 0.2;
 }
 
+.markdown > h3:target::before {
+    color: var(--c-thp);
+    opacity: 1;
+}
+
 .markdown ul {
     list-style-type: disc;
     list-style-position: inside;
@@ -60,6 +73,10 @@
     padding: 0.5rem 0;
 }
 
+.markdown p > code {
+    border: solid 1px var(--c-border-1);
+}
+
 .markdown > pre {
     margin: 0.5em 0;
     padding: 0.75em 0.75em;
@@ -79,4 +96,10 @@
 .two-column a {
     color: #2563eb;
     text-decoration: underline;
+    display: inline-block;
 }
+
+.two-column h3 {
+    margin: 0.75rem 0;
+}
+

src/components/ApiLayout/Sidebar.astro

@@ -0,0 +1,43 @@
+---
+import type { Hierarchy, Post } from "../../layouts/ApiLayout.astro";
+
+const hierarchy: Hierarchy = Astro.props.hierarchy;
+
+function splitAndLast(s: string): string {
+    const segments = s.split("/");
+    return segments[segments.length - 1]!;
+}
+
+function postComparison(a: Post, b: Post): number {
+    const s1 = splitAndLast(a.url);
+    const s2 = splitAndLast(b.url);
+
+    return s1 > s2 ? 0 : 1;
+}
+---
+
+{
+    Object.entries(hierarchy.children).map(([folderName, children]) => (
+        <>
+            <div class="mt-6 px-2 py-1 uppercase font-display text-c-text-2 font-medium">
+                {folderName}
+            </div>
+
+            <div class="pl-2 my-1">
+                <ul class="border-l border-c-border-1">
+                    <Astro.self hierarchy={children} />
+                </ul>
+            </div>
+        </>
+    ))
+}
+{
+    hierarchy.posts.sort(postComparison).map((p) => (
+        <a
+            class="inline-block rounded-2xl w-full hover:bg-neutral-200 dark:hover:bg-neutral-800 transition-colors px-3 py-2"
+            href={p.url}
+        >
+            {splitAndLast(p.url)}
+        </a>
+    ))
+}

src/components/TOC.astro

@@ -25,6 +25,7 @@ function buildHierarchy(headings: any) {
             parentHeadings.get(heading.depth - 1).subheadings.push(heading);
         }
     });
+
     return toc;
 }
 ---

src/components/TOCHeading.astro

@@ -1,17 +1,22 @@
 ---
 // github.com/rezahedi/rezahedi.dev/blob/main/src/components/TOCHeading.astro
-const { heading } = Astro.props;
+const { heading, parentMono } = Astro.props;
+
+// If a heading starts with `API: `
+// then its children should be rendered with a mono font
+const isMono = heading.text.startsWith("API: ");
+const monoClass = parentMono? " font-mono" : "";
 ---
 
 <li>
-    <a class="inline-block py-1 hover:underline" href={"#" + heading.slug}>
+    <a class={"inline-block py-1 hover:underline" + monoClass} href={"#" + heading.slug}>
         {heading.text}
     </a>
     {
         heading.subheadings.length > 0 && (
             <ul class="px-2">
                 {heading.subheadings.map((subheading: any) => (
-                    <Astro.self heading={subheading} />
+                    <Astro.self heading={subheading} parentMono={isMono} />
                 ))}
             </ul>
         )

src/layouts/ApiLayout.astro

@@ -2,8 +2,78 @@
 import Navbar from "../components/Navbar.astro";
 import BaseLayout from "./BaseLayout.astro";
 import TOC from "../components/TOC.astro";
+import Sidebar from "../components/ApiLayout/Sidebar.astro";
 
 const { headings } = Astro.props;
+
+export type Post = {
+    frontmatter: any;
+    getHeadings: any;
+    url: string;
+    file: any;
+    Content: any;
+    default: any;
+};
+type Posts = Array<Readonly<Post>>;
+
+const basePath = "/api/std";
+const posts: Posts = await Astro.glob("../pages/api/std/**/*.{md,mdx}");
+
+export type Hierarchy = {
+    posts: Array<Post>;
+    children: Record<string, Hierarchy>;
+};
+
+function createHierarchy(posts: Posts): Hierarchy {
+    const hierarchy: Hierarchy = {
+        posts: [],
+        children: {},
+    };
+
+    for (const post of posts) {
+        const postUrl: string = post.url;
+        const urlAfterBase = postUrl.split(basePath)[1] ?? "";
+
+        // handle / (index)
+        if (urlAfterBase === "") {
+            hierarchy.posts.push(post);
+            continue;
+        }
+
+        const urlSegments = urlAfterBase.split("/").slice(1);
+
+        // top level urls
+        if (urlSegments.length === 1) {
+            hierarchy.posts.push(post);
+            continue;
+        }
+
+        // folders
+        const folders = urlSegments.slice(0, -1);
+
+        // traverse the hierarchy until the neccesary hierarchy is found
+        let currentHierarchy = hierarchy;
+        for (const folderName of folders) {
+            // check if folder exists, create otherwise
+            if (!hierarchy.children[folderName]) {
+                // create if doesnt exist
+                hierarchy.children[folderName] = {
+                    posts: [],
+                    children: {},
+                };
+            }
+
+            currentHierarchy = hierarchy.children[folderName];
+        }
+
+        // add the page
+        currentHierarchy.posts.push(post);
+    }
+
+    return hierarchy;
+}
+
+const hierarchy = createHierarchy(posts);
 ---
 
 <BaseLayout>
@@ -16,7 +86,7 @@ const { headings } = Astro.props;
                 border-c-border-1 -translate-x-64 lg:translate-x-0 transition-transform"
         >
             <nav class="py-4 pr-2 overflow-x-scroll h-[calc(100vh-3rem)]">
-                <a href="/">Home page</a>
+                <Sidebar hierarchy={hierarchy} />
             </nav>
         </div>
 
@@ -39,4 +109,10 @@ const { headings } = Astro.props;
             </nav>
         </div>
     </div>
+
+    <script>
+        import { sidebarHighlight } from "./utils";
+        // Highlight the current url of the sidebar
+        document.addEventListener("DOMContentLoaded", sidebarHighlight);
+    </script>
 </BaseLayout>

src/layouts/PagesLayout.astro

@@ -77,7 +77,9 @@ for (const entry of pagesIndex) {
 <BaseLayout title={frontmatter.title}>
     <Navbar />
 
-    <div class="lg:grid lg:grid-cols-[14rem_auto_12rem] lg:container mx-auto font-display">
+    <div
+        class="lg:grid lg:grid-cols-[14rem_auto_12rem] lg:container mx-auto font-display"
+    >
         <div
             id="sidebar"
             class="pt-12 h-screen lg:sticky top-0 fixed z-10 bg-c-bg w-60 lg:w-auto border-r-2 lg:border-0
@@ -116,22 +118,8 @@ for (const entry of pagesIndex) {
         document.addEventListener("DOMContentLoaded", highlightOnDom);
     </script>
     <script>
+        import { sidebarHighlight } from "./utils";
         // Highlight the current url of the sidebar
-        document.addEventListener("DOMContentLoaded", () => {
-            let current_uri = window.location.pathname;
-
-            const sidebar = document.getElementById("sidebar")!
-                .children[0]! as HTMLElement;
-            const links = sidebar.querySelectorAll("a");
-            for (const link of [...links]) {
-                if (link.getAttribute("href") === current_uri) {
-                    sidebar.scrollTop =
-                        link.offsetTop - sidebar.offsetTop - 250;
-
-                    link.classList.add("bg-pink-200", "dark:bg-pink-950");
-                    break;
-                }
-            }
-        });
+        document.addEventListener("DOMContentLoaded", sidebarHighlight);
     </script>
 </BaseLayout>

src/layouts/utils.ts

@@ -0,0 +1,17 @@
+
+export function sidebarHighlight() {
+    let current_uri = window.location.pathname;
+
+    const sidebar = document.getElementById("sidebar")!
+        .children[0]! as HTMLElement;
+    const links = sidebar.querySelectorAll("a");
+    for (const link of [...links]) {
+        if (link.getAttribute("href") === current_uri) {
+            sidebar.scrollTop =
+                link.offsetTop - sidebar.offsetTop - 250;
+
+            link.classList.add("bg-pink-200", "dark:bg-pink-950");
+            break;
+        }
+    }
+}

src/lexer/highlighter.ts

@@ -1,7 +1,7 @@
 import { spawn } from "node:child_process";
 import { leftTrimDedent } from "../components/utils";
 import { HighlightLevel } from "./types";
-import type { LexError, SyntaxError, SemanticError, Token, TokenizeResult, TokenType } from "./types";
+import type { LexError, SyntaxError, Token, TokenizeResult, TokenType } from "./types";
 
 const error_classes = "underline underline-offset-4 decoration-wavy decoration-red-500";
 

src/pages/api/std/index.mdx

@@ -61,38 +61,40 @@ val my_animal = 'animal()
 `} />
 
 
-## Datatypes
+## API: Datatypes
 
 <TwoColumn>
 
-[`Array[T]`](/api/std/Array/)
+### [`Array[T]`](/api/std/Array/)
 
 A uniform container of values or references.
 
-[`String`](/api/std/String/)
+### [`String`](/api/std/String/)
 
 A series of extended ASCII characters (8 bits).
 
-[`Int`](/api/std/Int/)
+### [`Int`](/api/std/Int/)
 
 An integer number.
 
-[`Float`](/api/std/Float/)
+### [`Float`](/api/std/Float/)
 
 A [IEEE 754](https://en.wikipedia.org/wiki/IEEE_754) double precision floating point number.
 
-[`Bool`](/api/std/Bool/)
+### [`Bool`](/api/std/Bool/)
 
 `true` or `false`
 
 </TwoColumn>
 
-## Global functions
+## API: Global functions
 
 <TwoColumn>
-[`print`](/api/std/print/)
+
+### [`print`](/api/std/print/)
 
 Prints text into stdout.
+
 </TwoColumn>
 
 

src/pages/spec/tokens/numbers.mdx

@@ -10,23 +10,30 @@ import Code from "../../../components/Code.astro"
 
 ```ebnf
 Int = hexadecimal_number
+    | octal_number
+    | binary_number
     | decimal_number
 
 hexadecimal_number = "0", ("x" | "X"), hexadecimal_digit+
 decimal_number     = decimal_digit+
+octal_number       = "0", ("o" | "O"), octal_digit+
+binary_number      = "0", "b", binary_digit +
 ```
 
 <Code thpcode={`
 12345
 01234   // This is a decimal number, not an octal number
+0o755   // This is octal
+0b0110
 0xff25
 0XFfaA
 `} />
 
-`TODO`: Implement octal `0o777` and binary `0b0110`.
-
 `TODO`: Allow underscores `_` between any number: `1_000_000`.
 
+`TODO`: Make it an error to have a number start with a leading zero,
+to eliminate confusion with proper octal and legacy PHP octal.
+
 
 ## Float
 

tailwind.config.mjs

@@ -9,7 +9,7 @@ export default {
                 "c-text": "var(--c-text)",
                 "c-text-2": "var(--c-text-2)",
                 "c-purple": "var(--c-purple)",
-                "c-border-1": "rgba(150,150,150,0.25)",
+                "c-border-1": "var(--c-border-1)",
                 "c-purple-light": "var(--c-purple-light)",
                 "c-box-shadow": "var(--c-box-shadow)",
                 "c-ping": "var(--c-pink)",