run npm install to generate a package lock

node_modules/graphviz-wasm/.editorconfig

@@ -0,0 +1,10 @@
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 2
+indent_style = space
+insert_final_newline = true
+trim_trailing_whitespace = true

node_modules/graphviz-wasm/dist/constants.d.ts

@@ -0,0 +1,3 @@
+declare const DEFAULT_ENGINE = "dot";
+declare const DEFAULT_FORMAT = "svg";
+export { DEFAULT_ENGINE, DEFAULT_FORMAT };

node_modules/graphviz-wasm/dist/constants.js

@@ -0,0 +1,5 @@
+/* MAIN */
+const DEFAULT_ENGINE = 'dot';
+const DEFAULT_FORMAT = 'svg';
+/* EXPORT */
+export { DEFAULT_ENGINE, DEFAULT_FORMAT };

node_modules/graphviz-wasm/dist/generate.d.ts

@@ -0,0 +1,6 @@
+import type { Engine, Format } from './types';
+declare const generate: (GRAPHVIZ_BASE64: string) => {
+    loadWASM: () => Promise<void>;
+    layout: (source: string, format?: Format, engine?: Engine) => string;
+};
+export default generate;

node_modules/graphviz-wasm/dist/generate.js

@@ -0,0 +1,30 @@
+/* IMPORT */
+import decode from 'decode-base64';
+import once from 'function-once';
+import wrapper from '../graphviz/wrapper.js';
+import { DEFAULT_ENGINE, DEFAULT_FORMAT } from './constants.js';
+/* MAIN */
+const generate = (GRAPHVIZ_BASE64) => {
+    const Graphviz = {
+        /* LIFECYCLE API */
+        loadWASM: once(async () => {
+            const GRAPHVIZ_BUFFER = decode(GRAPHVIZ_BASE64);
+            const instance = await wrapper({ wasmBinary: GRAPHVIZ_BUFFER });
+            Graphviz.layout = (source, format = DEFAULT_FORMAT, engine = DEFAULT_ENGINE) => {
+                const graphviz = new instance.Graphviz();
+                const result = graphviz.layout(source, format, engine);
+                instance.destroy(graphviz);
+                if (!result)
+                    throw new Error(instance.Graphviz.prototype.lastError());
+                return result;
+            };
+        }),
+        /* API */
+        layout: (source, format = DEFAULT_FORMAT, engine = DEFAULT_ENGINE) => {
+            throw new Error('[graphviz] You need to call and await "graphviz.loadWASM" first');
+        }
+    };
+    return Graphviz;
+};
+/* EXPORT */
+export default generate;

node_modules/graphviz-wasm/dist/index.d.ts

@@ -0,0 +1,7 @@
+import type { Engine, Format } from './types';
+declare const Graphviz: {
+    loadWASM: () => Promise<void>;
+    layout: (source: string, format?: Format, engine?: Engine) => string;
+};
+export default Graphviz;
+export type { Engine, Format };

node_modules/graphviz-wasm/dist/index.js

@@ -0,0 +1,7 @@
+/* IMPORT */
+import GRAPHVIZ_BASE64 from '../graphviz/graphviz.js';
+import generate from './generate.js';
+/* MAIN */
+const Graphviz = generate(GRAPHVIZ_BASE64);
+/* EXPORT */
+export default Graphviz;

node_modules/graphviz-wasm/dist/types.d.ts

@@ -0,0 +1,3 @@
+type Engine = 'circo' | 'dot' | 'fdp' | 'neato' | 'osage' | 'patchwork' | 'sfdp' | 'twopi';
+type Format = 'dot_json' | 'dot' | 'json' | 'plain-ext' | 'plain' | 'svg' | 'xdot_json';
+export type { Engine, Format };

node_modules/graphviz-wasm/dist/types.js

@@ -0,0 +1,2 @@
+/* MAIN */
+export {};

node_modules/graphviz-wasm/graphviz/update.sh

@@ -0,0 +1,8 @@
+# CWD
+cd graphviz
+
+# Update WASM
+wget -O graphviz.wasm https://unpkg.com/@hpcc-js/wasm/dist/graphvizlib.wasm
+
+# Update TS
+echo "export default '$(base64 graphviz.wasm)';" > graphviz.js

node_modules/graphviz-wasm/license

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2021-present Fabio Spampinato
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.

node_modules/graphviz-wasm/package.json

@@ -0,0 +1,33 @@
+{
+  "name": "graphviz-wasm",
+  "repository": "github:fabiospampinato/graphviz-wasm",
+  "description": "A port of Graphviz to WASM.",
+  "version": "3.0.2",
+  "type": "module",
+  "main": "dist/index.js",
+  "exports": "./dist/index.js",
+  "types": "./dist/index.d.ts",
+  "scripts": {
+    "clean": "tsex clean",
+    "compile": "tsex compile",
+    "compile:watch": "tsex compile --watch",
+    "test": "tsex test",
+    "test:watch": "tsex test --watch",
+    "update": "bash graphviz/update.sh",
+    "prepublishOnly": "tsex prepare"
+  },
+  "keywords": [
+    "graphviz",
+    "wasm",
+    "dot"
+  ],
+  "dependencies": {
+    "decode-base64": "^3.0.1",
+    "function-once": "^3.0.0"
+  },
+  "devDependencies": {
+    "fava": "^0.2.1",
+    "tsex": "^3.0.1",
+    "typescript": "^5.1.6"
+  }
+}

node_modules/graphviz-wasm/readme.md

@@ -0,0 +1,47 @@
+# Graphviz WASM
+
+A port of Graphviz to WASM.
+
+Note: this is currently just a light wrapper around [`@hpcc-js/wasm`](https://www.npmjs.com/package/@hpcc-js/wasm), you might want to consider just using that directly. The plan is to eventually generate custom bindings to graphviz, optimized for speed and size, and depending on your use case you'd import the right one.
+
+## Install
+
+```sh
+npm install --save graphviz-wasm
+```
+
+## Usage
+
+This is how you'd use the library:
+
+```ts
+import graphviz from 'graphviz-wasm';
+
+await graphviz.loadWASM (); // First of all you need to load the WASM instance and wait for it
+
+const dot = `
+  strict graph {
+    a -- b
+    a -- b
+    b -- a [color=blue]
+  }
+`;
+
+const svg = graphviz.layout ( dot );
+```
+
+This is the interface of the `layout` method:
+
+```ts
+type Engine = 'circo' | 'dot' | 'fdp' | 'neato' | 'osage' | 'patchwork' | 'sfdp' | 'twopi';
+
+type Format = 'dot_json' | 'dot' | 'json' | 'plain-ext' | 'plain' | 'svg' | 'xdot_json';
+
+type layout = ( source: string, format: Format = 'svg', engine: Engine = 'dot' ) => string;
+```
+
+## License
+
+- **Graphviz**: EPL © [Graphviz](https://gitlab.com/graphviz/graphviz/-/blob/main/LICENSE).
+- **WASM Port**: Apache © [hpcc-js-wasm](https://github.com/hpcc-systems/hpcc-js-wasm/blob/trunk/LICENSE).
+- **Rest**: MIT © Fabio Spampinato.

node_modules/graphviz-wasm/src/constants.ts

@@ -0,0 +1,10 @@
+
+/* MAIN */
+
+const DEFAULT_ENGINE = 'dot';
+
+const DEFAULT_FORMAT = 'svg';
+
+/* EXPORT */
+
+export {DEFAULT_ENGINE, DEFAULT_FORMAT};

node_modules/graphviz-wasm/src/generate.ts

@@ -0,0 +1,55 @@
+
+/* IMPORT */
+
+import decode from 'decode-base64';
+import once from 'function-once';
+import wrapper from '../graphviz/wrapper.js';
+import {DEFAULT_ENGINE, DEFAULT_FORMAT} from './constants';
+import type {Engine, Format} from './types';
+
+/* MAIN */
+
+const generate = ( GRAPHVIZ_BASE64: string ) => {
+
+  const Graphviz = {
+
+    /* LIFECYCLE API */
+
+    loadWASM: once ( async (): Promise<void> => {
+
+      const GRAPHVIZ_BUFFER = decode ( GRAPHVIZ_BASE64 );
+
+      const instance = await wrapper ({ wasmBinary: GRAPHVIZ_BUFFER });
+
+      Graphviz.layout = ( source: string, format: Format = DEFAULT_FORMAT, engine: Engine = DEFAULT_ENGINE ): string => {
+
+        const graphviz = new instance.Graphviz ();
+        const result = graphviz.layout ( source, format, engine );
+
+        instance.destroy ( graphviz );
+
+        if ( !result ) throw new Error ( instance.Graphviz.prototype.lastError () );
+
+        return result;
+
+      };
+
+    }),
+
+    /* API */
+
+    layout: ( source: string, format: Format = DEFAULT_FORMAT, engine: Engine = DEFAULT_ENGINE ): string => {
+
+      throw new Error ( '[graphviz] You need to call and await "graphviz.loadWASM" first' );
+
+    }
+
+  };
+
+  return Graphviz;
+
+};
+
+/* EXPORT */
+
+export default generate;

node_modules/graphviz-wasm/src/index.ts

@@ -0,0 +1,15 @@
+
+/* IMPORT */
+
+import GRAPHVIZ_BASE64 from '../graphviz/graphviz.js';
+import generate from './generate';
+import type {Engine, Format} from './types';
+
+/* MAIN */
+
+const Graphviz = generate ( GRAPHVIZ_BASE64 );
+
+/* EXPORT */
+
+export default Graphviz;
+export type {Engine, Format};

node_modules/graphviz-wasm/src/types.ts

@@ -0,0 +1,10 @@
+
+/* MAIN */
+
+type Engine = 'circo' | 'dot' | 'fdp' | 'neato' | 'osage' | 'patchwork' | 'sfdp' | 'twopi';
+
+type Format = 'dot_json' | 'dot' | 'json' | 'plain-ext' | 'plain' | 'svg' | 'xdot_json';
+
+/* EXPORT */
+
+export type {Engine, Format};

node_modules/graphviz-wasm/test/fixtures/input.txt

@@ -0,0 +1,17 @@
+graph Foo {
+    a -- b;
+    b -- c;
+    c -- d;
+    d -- e;
+    e -- f;
+    a -- f;
+    a -- c;
+    a -- d;
+    a -- e;
+    b -- d;
+    b -- e;
+    b -- f;
+    c -- e;
+    c -- f;
+    d -- f;
+}

node_modules/graphviz-wasm/test/fixtures/output.txt

@@ -0,0 +1,124 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+ "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<!-- Generated by graphviz version 2.50.0 (20211209.1537)
+ -->
+<!-- Title: Foo Pages: 1 -->
+<svg width="255pt" height="404pt"
+ viewBox="0.00 0.00 254.93 404.00" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
+<g id="graph0" class="graph" transform="scale(1 1) rotate(0) translate(4 400)">
+<title>Foo</title>
+<polygon fill="white" stroke="transparent" points="-4,4 -4,-400 250.93,-400 250.93,4 -4,4"/>
+<!-- a -->
+<g id="node1" class="node">
+<title>a</title>
+<ellipse fill="none" stroke="black" cx="123" cy="-378" rx="27" ry="18"/>
+<text text-anchor="middle" x="123" y="-373.8" font-family="Times,serif" font-size="14.00">a</text>
+</g>
+<!-- b -->
+<g id="node2" class="node">
+<title>b</title>
+<ellipse fill="none" stroke="black" cx="123" cy="-306" rx="27" ry="18"/>
+<text text-anchor="middle" x="123" y="-301.8" font-family="Times,serif" font-size="14.00">b</text>
+</g>
+<!-- a&#45;&#45;b -->
+<g id="edge1" class="edge">
+<title>a&#45;&#45;b</title>
+<path fill="none" stroke="black" d="M123,-359.7C123,-348.85 123,-334.92 123,-324.1"/>
+</g>
+<!-- c -->
+<g id="node3" class="node">
+<title>c</title>
+<ellipse fill="none" stroke="black" cx="207" cy="-234" rx="27" ry="18"/>
+<text text-anchor="middle" x="207" y="-229.8" font-family="Times,serif" font-size="14.00">c</text>
+</g>
+<!-- a&#45;&#45;c -->
+<g id="edge7" class="edge">
+<title>a&#45;&#45;c</title>
+<path fill="none" stroke="black" d="M134.14,-361.51C141.48,-351.08 151.15,-336.93 159,-324 174.03,-299.24 189.63,-269.42 198.81,-251.36"/>
+</g>
+<!-- d -->
+<g id="node4" class="node">
+<title>d</title>
+<ellipse fill="none" stroke="black" cx="207" cy="-162" rx="27" ry="18"/>
+<text text-anchor="middle" x="207" y="-157.8" font-family="Times,serif" font-size="14.00">d</text>
+</g>
+<!-- a&#45;&#45;d -->
+<g id="edge8" class="edge">
+<title>a&#45;&#45;d</title>
+<path fill="none" stroke="black" d="M142.09,-364.91C170.87,-345.35 224.05,-303.69 243,-252 248.51,-236.98 247.7,-231.29 243,-216 238.62,-201.75 228.96,-187.9 220.75,-177.93"/>
+</g>
+<!-- e -->
+<g id="node5" class="node">
+<title>e</title>
+<ellipse fill="none" stroke="black" cx="141" cy="-90" rx="27" ry="18"/>
+<text text-anchor="middle" x="141" y="-85.8" font-family="Times,serif" font-size="14.00">e</text>
+</g>
+<!-- a&#45;&#45;e -->
+<g id="edge9" class="edge">
+<title>a&#45;&#45;e</title>
+<path fill="none" stroke="black" d="M109.25,-362.07C101.04,-352.1 91.38,-338.25 87,-324 82.3,-308.71 84.87,-303.86 87,-288 96.22,-219.46 122.73,-141.04 134.83,-107.55"/>
+</g>
+<!-- f -->
+<g id="node6" class="node">
+<title>f</title>
+<ellipse fill="none" stroke="black" cx="141" cy="-18" rx="27" ry="18"/>
+<text text-anchor="middle" x="141" y="-13.8" font-family="Times,serif" font-size="14.00">f</text>
+</g>
+<!-- a&#45;&#45;f -->
+<g id="edge6" class="edge">
+<title>a&#45;&#45;f</title>
+<path fill="none" stroke="black" d="M102.69,-365.91C67.75,-345.17 0,-296.97 0,-235 0,-235 0,-235 0,-161 0,-94.3 79.31,-47.77 118.97,-28.68"/>
+</g>
+<!-- b&#45;&#45;c -->
+<g id="edge2" class="edge">
+<title>b&#45;&#45;c</title>
+<path fill="none" stroke="black" d="M139.2,-291.5C154.07,-279.11 175.99,-260.84 190.85,-248.46"/>
+</g>
+<!-- b&#45;&#45;d -->
+<g id="edge10" class="edge">
+<title>b&#45;&#45;d</title>
+<path fill="none" stroke="black" d="M131.19,-288.64C140.37,-270.58 155.97,-240.76 171,-216 178.85,-203.07 188.52,-188.92 195.86,-178.49"/>
+</g>
+<!-- b&#45;&#45;e -->
+<g id="edge11" class="edge">
+<title>b&#45;&#45;e</title>
+<path fill="none" stroke="black" d="M124.44,-287.85C127.81,-247.78 136.17,-148.38 139.55,-108.23"/>
+</g>
+<!-- b&#45;&#45;f -->
+<g id="edge12" class="edge">
+<title>b&#45;&#45;f</title>
+<path fill="none" stroke="black" d="M117.55,-288.15C105.8,-249.13 81.03,-149.95 105,-72 109.38,-57.75 119.04,-43.9 127.25,-33.93"/>
+</g>
+<!-- c&#45;&#45;d -->
+<g id="edge3" class="edge">
+<title>c&#45;&#45;d</title>
+<path fill="none" stroke="black" d="M207,-215.7C207,-204.85 207,-190.92 207,-180.1"/>
+</g>
+<!-- c&#45;&#45;e -->
+<g id="edge13" class="edge">
+<title>c&#45;&#45;e</title>
+<path fill="none" stroke="black" d="M194.78,-217.46C187.18,-207.25 177.63,-193.35 171,-180 159.11,-156.05 150.14,-126.26 145.23,-107.94"/>
+</g>
+<!-- c&#45;&#45;f -->
+<g id="edge14" class="edge">
+<title>c&#45;&#45;f</title>
+<path fill="none" stroke="black" d="M220.75,-218.07C228.96,-208.1 238.62,-194.25 243,-180 247.7,-164.71 247.41,-159.38 243,-144 228.95,-95 183.32,-52.49 158.12,-32.01"/>
+</g>
+<!-- d&#45;&#45;e -->
+<g id="edge4" class="edge">
+<title>d&#45;&#45;e</title>
+<path fill="none" stroke="black" d="M193,-146.15C181.8,-134.28 166.17,-117.7 154.98,-105.82"/>
+</g>
+<!-- d&#45;&#45;f -->
+<g id="edge15" class="edge">
+<title>d&#45;&#45;f</title>
+<path fill="none" stroke="black" d="M202.77,-144.06C197.86,-125.74 188.89,-95.95 177,-72 170.37,-58.65 160.82,-44.75 153.22,-34.54"/>
+</g>
+<!-- e&#45;&#45;f -->
+<g id="edge5" class="edge">
+<title>e&#45;&#45;f</title>
+<path fill="none" stroke="black" d="M141,-71.7C141,-60.85 141,-46.92 141,-36.1"/>
+</g>
+</g>
+</svg>

node_modules/graphviz-wasm/test/index.js

@@ -0,0 +1,25 @@
+
+/* IMPORT */
+
+import {describe} from 'fava';
+import fs from 'node:fs';
+import Graphviz from '../dist/index.js';
+
+/* MAIN */
+
+describe ( 'Graphviz', it => {
+
+  it ( 'renders dot to svg', async t => {
+
+    const input = fs.readFileSync ( './test/fixtures/input.txt', 'utf8' );
+    const output = fs.readFileSync ( './test/fixtures/output.txt', 'utf8' );
+
+    await Graphviz.loadWASM ();
+
+    const result = Graphviz.layout ( input );
+
+    t.is ( result, output );
+
+  });
+
+});

node_modules/graphviz-wasm/tsconfig.json

@@ -0,0 +1,7 @@
+{
+  "extends": "tsex/tsconfig.json",
+  "compilerOptions": {
+    "noImplicitAny": false,
+    "noUnusedParameters": false
+  }
+}