temp

feat: add `@mermaid-js/parser` package and `info` langium parser

.build/common.ts

@@ -0,0 +1,25 @@
+/**
+ * Shared common options for both ESBuild and Vite
+ */
+export const packageOptions = {
+  parser: {
+    name: 'mermaid-parser',
+    packageName: 'parser',
+    file: 'index.ts',
+  },
+  mermaid: {
+    name: 'mermaid',
+    packageName: 'mermaid',
+    file: 'mermaid.ts',
+  },
+  'mermaid-example-diagram': {
+    name: 'mermaid-example-diagram',
+    packageName: 'mermaid-example-diagram',
+    file: 'detector.ts',
+  },
+  'mermaid-zenuml': {
+    name: 'mermaid-zenuml',
+    packageName: 'mermaid-zenuml',
+    file: 'detector.ts',
+  },
+} as const;

.build/generateLangium.ts

@@ -0,0 +1,5 @@
+import { generate } from 'langium-cli';
+
+export async function generateLangium() {
+  await generate({ file: `./packages/parser/langium-config.json` });
+}

.build/jsonSchema.ts

@@ -0,0 +1,122 @@
+import { load, JSON_SCHEMA } from 'js-yaml';
+import assert from 'node:assert';
+import Ajv2019, { type JSONSchemaType } from 'ajv/dist/2019.js';
+
+import type { MermaidConfig, BaseDiagramConfig } from '../packages/mermaid/src/config.type.js';
+
+/**
+ * All of the keys in the mermaid config that have a mermaid diagram config.
+ */
+const MERMAID_CONFIG_DIAGRAM_KEYS = [
+  'flowchart',
+  'sequence',
+  'gantt',
+  'journey',
+  'class',
+  'state',
+  'er',
+  'pie',
+  'quadrantChart',
+  'requirement',
+  'mindmap',
+  'timeline',
+  'gitGraph',
+  'c4',
+  'sankey',
+] as const;
+
+/**
+ * Generate default values from the JSON Schema.
+ *
+ * AJV does not support nested default values yet (or default values with $ref),
+ * so we need to manually find them (this may be fixed in ajv v9).
+ *
+ * @param mermaidConfigSchema - The Mermaid JSON Schema to use.
+ * @returns The default mermaid config object.
+ */
+export function generateDefaults(mermaidConfigSchema: JSONSchemaType<MermaidConfig>) {
+  const ajv = new Ajv2019({
+    useDefaults: true,
+    allowUnionTypes: true,
+    strict: true,
+  });
+
+  ajv.addKeyword({
+    keyword: 'meta:enum', // used by jsonschema2md
+    errors: false,
+  });
+  ajv.addKeyword({
+    keyword: 'tsType', // used by json-schema-to-typescript
+    errors: false,
+  });
+
+  // ajv currently doesn't support nested default values, see https://github.com/ajv-validator/ajv/issues/1718
+  // (may be fixed in v9) so we need to manually use sub-schemas
+  const mermaidDefaultConfig = {};
+
+  assert.ok(mermaidConfigSchema.$defs);
+  const baseDiagramConfig = mermaidConfigSchema.$defs.BaseDiagramConfig;
+
+  for (const key of MERMAID_CONFIG_DIAGRAM_KEYS) {
+    const subSchemaRef = mermaidConfigSchema.properties[key].$ref;
+    const [root, defs, defName] = subSchemaRef.split('/');
+    assert.strictEqual(root, '#');
+    assert.strictEqual(defs, '$defs');
+    const subSchema = {
+      $schema: mermaidConfigSchema.$schema,
+      $defs: mermaidConfigSchema.$defs,
+      ...mermaidConfigSchema.$defs[defName],
+    } as JSONSchemaType<BaseDiagramConfig>;
+
+    const validate = ajv.compile(subSchema);
+
+    mermaidDefaultConfig[key] = {};
+
+    for (const required of subSchema.required ?? []) {
+      if (subSchema.properties[required] === undefined && baseDiagramConfig.properties[required]) {
+        mermaidDefaultConfig[key][required] = baseDiagramConfig.properties[required].default;
+      }
+    }
+    if (!validate(mermaidDefaultConfig[key])) {
+      throw new Error(
+        `schema for subconfig ${key} does not have valid defaults! Errors were ${JSON.stringify(
+          validate.errors,
+          undefined,
+          2
+        )}`
+      );
+    }
+  }
+
+  const validate = ajv.compile(mermaidConfigSchema);
+
+  if (!validate(mermaidDefaultConfig)) {
+    throw new Error(
+      `Mermaid config JSON Schema does not have valid defaults! Errors were ${JSON.stringify(
+        validate.errors,
+        undefined,
+        2
+      )}`
+    );
+  }
+
+  return mermaidDefaultConfig;
+}
+
+export const loadSchema = (src: string, filename: string): JSONSchemaType<MermaidConfig> => {
+  const jsonSchema = load(src, {
+    filename,
+    // only allow JSON types in our YAML doc (will probably be default in YAML 1.3)
+    // e.g. `true` will be parsed a boolean `true`, `True` will be parsed as string `"True"`.
+    schema: JSON_SCHEMA,
+  }) as JSONSchemaType<MermaidConfig>;
+  return jsonSchema;
+};
+
+export const getDefaults = (schema: JSONSchemaType<MermaidConfig>) => {
+  return `export default ${JSON.stringify(generateDefaults(schema), undefined, 2)};`;
+};
+
+export const getSchema = (schema: JSONSchemaType<MermaidConfig>) => {
+  return `export default ${JSON.stringify(schema, undefined, 2)};`;
+};

.build/langium-cli.d.ts

@@ -0,0 +1,9 @@
+declare module 'langium-cli' {
+  export interface GenerateOptions {
+    file?: string;
+    mode?: 'development' | 'production';
+    watch?: boolean;
+  }
+
+  export function generate(options: GenerateOptions): Promise<boolean>;
+}

.esbuild/build.ts

@@ -0,0 +1,65 @@
+import { build } from 'esbuild';
+import { mkdir, writeFile } from 'node:fs/promises';
+import { MermaidBuildOptions, defaultOptions, getBuildConfig } from './util.js';
+import { packageOptions } from '../.build/common.js';
+import { generateLangium } from '../.build/generateLangium.js';
+
+const shouldVisualize = process.argv.includes('--visualize');
+
+const buildPackage = async (entryName: keyof typeof packageOptions) => {
+  const commonOptions = { ...defaultOptions, entryName } as const;
+  const buildConfigs = [
+    // package.mjs
+    { ...commonOptions },
+    // package.min.mjs
+    {
+      ...commonOptions,
+      minify: true,
+      metafile: shouldVisualize,
+    },
+    // package.core.mjs
+    { ...commonOptions, core: true },
+  ];
+
+  if (entryName === 'mermaid') {
+    const iifeOptions: MermaidBuildOptions = { ...commonOptions, format: 'iife' };
+    buildConfigs.push(
+      // mermaid.js
+      { ...iifeOptions },
+      // mermaid.min.js
+      { ...iifeOptions, minify: true, metafile: shouldVisualize }
+    );
+  }
+
+  const results = await Promise.all(buildConfigs.map((option) => build(getBuildConfig(option))));
+
+  if (shouldVisualize) {
+    for (const { metafile } of results) {
+      if (!metafile) {
+        continue;
+      }
+      const fileName = Object.keys(metafile.outputs)
+        .filter((file) => !file.includes('chunks') && file.endsWith('js'))[0]
+        .replace('dist/', '');
+      // Upload metafile into https://esbuild.github.io/analyze/
+      await writeFile(`stats/${fileName}.meta.json`, JSON.stringify(metafile));
+    }
+  }
+};
+
+const handler = (e) => {
+  console.error(e);
+  process.exit(1);
+};
+
+const main = async () => {
+  await generateLangium();
+  await mkdir('stats').catch(() => {});
+  const packageNames = Object.keys(packageOptions) as (keyof typeof packageOptions)[];
+  // it should build `parser` before `mermaid` because it's a dependecy
+  for (const pkg of packageNames) {
+    await buildPackage(pkg).catch(handler);
+  }
+};
+
+void main();

.esbuild/jisonPlugin.ts

@@ -0,0 +1,15 @@
+import { readFile } from 'node:fs/promises';
+import { transformJison } from '../.build/jisonTransformer.js';
+import { Plugin } from 'esbuild';
+
+export const jisonPlugin: Plugin = {
+  name: 'jison',
+  setup(build) {
+    build.onLoad({ filter: /\.jison$/ }, async (args) => {
+      // Load the file from the file system
+      const source = await readFile(args.path, 'utf8');
+      const contents = transformJison(source);
+      return { contents, warnings: [] };
+    });
+  },
+};

.esbuild/jsonSchemaPlugin.ts

@@ -0,0 +1,35 @@
+import type { JSONSchemaType } from 'ajv/dist/2019.js';
+import type { MermaidConfig } from '../packages/mermaid/src/config.type.js';
+import { readFile } from 'node:fs/promises';
+import { getDefaults, getSchema, loadSchema } from '../.build/jsonSchema.js';
+
+/**
+ * ESBuild plugin that handles JSON Schemas saved as a `.schema.yaml` file.
+ *
+ * Use `my-example.schema.yaml?only-defaults=true` to only load the default values.
+ */
+
+export const jsonSchemaPlugin = {
+  name: 'json-schema-plugin',
+  setup(build) {
+    let schema: JSONSchemaType<MermaidConfig> | undefined = undefined;
+    let content = '';
+
+    build.onLoad({ filter: /config\.schema\.yaml$/ }, async (args) => {
+      // Load the file from the file system
+      const source = await readFile(args.path, 'utf8');
+      const resolvedSchema: JSONSchemaType<MermaidConfig> =
+        content === source && schema ? schema : loadSchema(source, args.path);
+      if (content !== source) {
+        content = source;
+        schema = resolvedSchema;
+      }
+      const contents = args.suffix.includes('only-defaults')
+        ? getDefaults(resolvedSchema)
+        : getSchema(resolvedSchema);
+      return { contents, warnings: [] };
+    });
+  },
+};
+
+export default jsonSchemaPlugin;

.esbuild/server.ts

@@ -0,0 +1,116 @@
+import express from 'express';
+import type { NextFunction, Request, Response } from 'express';
+import cors from 'cors';
+import { getBuildConfig, defaultOptions } from './util.js';
+import { context } from 'esbuild';
+import chokidar from 'chokidar';
+import { generateLangium } from '../.build/generateLangium.js';
+
+const parserCtx = await context(
+  getBuildConfig({ ...defaultOptions, minify: false, core: false, entryName: 'parser' })
+);
+const mermaidCtx = await context(
+  getBuildConfig({ ...defaultOptions, minify: false, core: false, entryName: 'mermaid' })
+);
+const mermaidIIFECtx = await context(
+  getBuildConfig({
+    ...defaultOptions,
+    minify: false,
+    core: false,
+    entryName: 'mermaid',
+    format: 'iife',
+  })
+);
+const externalCtx = await context(
+  getBuildConfig({
+    ...defaultOptions,
+    minify: false,
+    core: false,
+    entryName: 'mermaid-example-diagram',
+  })
+);
+const zenumlCtx = await context(
+  getBuildConfig({ ...defaultOptions, minify: false, core: false, entryName: 'mermaid-zenuml' })
+);
+const contexts = [parserCtx, mermaidCtx, mermaidIIFECtx, externalCtx, zenumlCtx];
+
+const rebuildAll = async () => {
+  console.time('Rebuild time');
+  await Promise.all(contexts.map((ctx) => ctx.rebuild()));
+  console.timeEnd('Rebuild time');
+};
+
+let clients: { id: number; response: Response }[] = [];
+function eventsHandler(request: Request, response: Response, next: NextFunction) {
+  const headers = {
+    'Content-Type': 'text/event-stream',
+    Connection: 'keep-alive',
+    'Cache-Control': 'no-cache',
+  };
+  response.writeHead(200, headers);
+  const clientId = Date.now();
+  clients.push({
+    id: clientId,
+    response,
+  });
+  request.on('close', () => {
+    clients = clients.filter((client) => client.id !== clientId);
+  });
+}
+
+let timeoutId: NodeJS.Timeout | undefined = undefined;
+
+/**
+ * Debounce file change events to avoid rebuilding multiple times.
+ */
+function handleFileChange() {
+  if (timeoutId !== undefined) {
+    clearTimeout(timeoutId);
+  }
+  timeoutId = setTimeout(async () => {
+    await rebuildAll();
+    sendEventsToAll();
+    timeoutId = undefined;
+  }, 100);
+}
+
+function sendEventsToAll() {
+  clients.forEach(({ response }) => response.write(`data: ${Date.now()}\n\n`));
+}
+
+async function createServer() {
+  await generateLangium();
+  handleFileChange();
+  const app = express();
+  chokidar
+    .watch('**/src/**/*.{js,ts,langium,yaml,json}', {
+      ignoreInitial: true,
+      ignored: [/node_modules/, /dist/, /docs/, /coverage/],
+    })
+    .on('all', async (event, path) => {
+      // Ignore other events.
+      if (!['add', 'change'].includes(event)) {
+        return;
+      }
+      if (/\.langium$/.test(path)) {
+        await generateLangium();
+      }
+      console.log(`${path} changed. Rebuilding...`);
+      handleFileChange();
+    });
+
+  app.use(cors());
+  app.get('/events', eventsHandler);
+  app.use(express.static('./packages/parser/dist'));
+  app.use(express.static('./packages/mermaid/dist'));
+  app.use(express.static('./packages/mermaid-zenuml/dist'));
+  app.use(express.static('./packages/mermaid-example-diagram/dist'));
+  app.use(express.static('demos'));
+  app.use(express.static('cypress/platform'));
+
+  app.listen(9000, () => {
+    console.log(`Listening on http://localhost:9000`);
+  });
+}
+
+createServer();

.esbuild/util.ts

@@ -0,0 +1,98 @@
+import { resolve } from 'path';
+import { fileURLToPath } from 'url';
+import type { BuildOptions } from 'esbuild';
+import { readFileSync } from 'fs';
+import jsonSchemaPlugin from './jsonSchemaPlugin.js';
+import { packageOptions } from '../.build/common.js';
+import { jisonPlugin } from './jisonPlugin.js';
+
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+
+export interface MermaidBuildOptions {
+  minify: boolean;
+  core: boolean;
+  metafile: boolean;
+  format: 'esm' | 'iife';
+  entryName: keyof typeof packageOptions;
+}
+
+export const defaultOptions: Omit<MermaidBuildOptions, 'entryName'> = {
+  minify: false,
+  metafile: false,
+  core: false,
+  format: 'esm',
+} as const;
+
+const buildOptions = (override: BuildOptions): BuildOptions => {
+  return {
+    bundle: true,
+    minify: true,
+    keepNames: true,
+    platform: 'browser',
+    tsconfig: 'tsconfig.json',
+    resolveExtensions: ['.ts', '.js', '.json', '.jison', '.yaml'],
+    external: ['require', 'fs', 'path'],
+    outdir: 'dist',
+    plugins: [jisonPlugin, jsonSchemaPlugin],
+    sourcemap: 'external',
+    ...override,
+  };
+};
+
+const getFileName = (fileName: string, { core, format, minify }: MermaidBuildOptions) => {
+  if (core) {
+    fileName += '.core';
+  } else if (format === 'esm') {
+    fileName += '.esm';
+  }
+  if (minify) {
+    fileName += '.min';
+  }
+  return fileName;
+};
+
+export const getBuildConfig = (options: MermaidBuildOptions): BuildOptions => {
+  const { core, entryName, metafile, format, minify } = options;
+  const external: string[] = ['require', 'fs', 'path'];
+  const { name, file, packageName } = packageOptions[entryName];
+  const outFileName = getFileName(name, options);
+  let output: BuildOptions = buildOptions({
+    absWorkingDir: resolve(__dirname, `../packages/${packageName}`),
+    entryPoints: {
+      [outFileName]: `src/${file}`,
+    },
+    metafile,
+    minify,
+    logLevel: 'info',
+    chunkNames: `chunks/${outFileName}/[name]-[hash]`,
+  });
+
+  if (core) {
+    const { dependencies } = JSON.parse(
+      readFileSync(resolve(__dirname, `../packages/${packageName}/package.json`), 'utf-8')
+    );
+    // Core build is used to generate file without bundled dependencies.
+    // This is used by downstream projects to bundle dependencies themselves.
+    // Ignore dependencies and any dependencies of dependencies
+    external.push(...Object.keys(dependencies));
+    output.external = external;
+  }
+
+  if (format === 'iife') {
+    output.format = 'iife';
+    output.splitting = false;
+    output.globalName = '__esbuild_esm_mermaid';
+    // Workaround for removing the .default access in esbuild IIFE.
+    // https://github.com/mermaid-js/mermaid/pull/4109#discussion_r1292317396
+    output.footer = {
+      js: 'globalThis.mermaid = globalThis.__esbuild_esm_mermaid.default;',
+    };
+    output.outExtension = { '.js': '.js' };
+  } else {
+    output.format = 'esm';
+    output.splitting = true;
+    output.outExtension = { '.js': '.mjs' };
+  }
+
+  return output;
+};

.eslintignore

@@ -6,3 +6,6 @@ cypress/plugins/index.js
 coverage
 *.json
 node_modules
+
+# autogenereated by langium-cli
+generated/

.eslintrc.cjs

@@ -38,12 +38,17 @@ module.exports = {
     'lodash',
     'unicorn',
   ],
+  ignorePatterns: [
+    // this file is automatically generated by `pnpm run --filter mermaid types:build-config`
+    'packages/mermaid/src/config.type.ts',
+  ],
   rules: {
     curly: 'error',
     'no-console': 'error',
     'no-prototype-builtins': 'off',
     'no-unused-vars': 'off',
     'cypress/no-async-tests': 'off',
+    '@typescript-eslint/consistent-type-imports': 'error',
     '@typescript-eslint/no-floating-promises': 'error',
     '@typescript-eslint/no-misused-promises': 'error',
     '@typescript-eslint/ban-ts-comment': [
@@ -123,6 +128,14 @@ module.exports = {
       files: ['*.{ts,tsx}'],
       plugins: ['tsdoc'],
       rules: {
+        'no-restricted-syntax': [
+          'error',
+          {
+            selector: 'TSEnumDeclaration',
+            message:
+              'Prefer using TypeScript union types over TypeScript enum, since TypeScript enums have a bunch of issues, see https://dev.to/dvddpl/whats-the-problem-with-typescript-enums-2okj',
+          },
+        ],
         'tsdoc/syntax': 'error',
       },
     },

.github/codecov.yaml

@@ -1,3 +1,6 @@
+codecov:
+  branch: develop
+
 comment:
   layout: 'reach, diff, flags, files'
   behavior: default
@@ -8,5 +11,7 @@ comment:
 coverage:
   status:
     project:
-      default:
-        threshold: 1%
+      off
+      # Turing off for now as code coverage isn't stable and causes unnecessary build failures.
+      # default:
+      #   threshold: 2%

.github/lychee.toml

@@ -0,0 +1,44 @@
+#############################  Display  #############################
+
+# Verbose program output
+# Accepts log level: "error", "warn", "info", "debug", "trace"
+verbose = "debug"
+
+# Don't show interactive progress bar while checking links.
+no_progress = true
+
+#############################  Cache  ###############################
+
+# Enable link caching. This can be helpful to avoid checking the same links on
+# multiple runs.
+cache = true
+
+# Discard all cached requests older than this duration.
+max_cache_age = "1d"
+
+#############################  Requests  ############################
+
+# Comma-separated list of accepted status codes for valid links.
+accept = [200, 429]
+
+#############################  Exclusions  ##########################
+
+# Exclude URLs and mail addresses from checking (supports regex).
+exclude = [
+# Network error: Forbidden
+"https://codepen.io",
+
+# Timeout error, maybe Twitter has anti-bot defenses against GitHub's CI servers?
+"https://twitter.com/mermaidjs_",
+
+# Don't check files that are generated during the build via `pnpm docs:code`
+'packages/mermaid/src/docs/config/setup/*',
+
+# Ignore slack invite
+"https://join.slack.com/"
+]
+
+# Exclude all private IPs from checking.
+# Equivalent to setting `exclude_private`, `exclude_link_local`, and
+# `exclude_loopback` to true.
+exclude_all_private = true

.github/pr-labeler.yml

@@ -1,3 +1,4 @@
-'Type: Bug / Error': 'bug/*'
-'Type: Enhancement': 'feature/*'
-'Type: Other': 'other/*'
+'Type: Bug / Error': ['bug/*', fix/*]
+'Type: Enhancement': ['feature/*', 'feat/*']
+'Type: Other': ['other/*', 'chore/*', 'test/*', 'refactor/*']
+'Area: Documentation': ['docs/*']

.github/pull_request_template.md

@@ -13,6 +13,6 @@ Describe the way your implementation works or what design decisions you made if
 Make sure you
 
 - [ ] :book: have read the [contribution guidelines](https://github.com/mermaid-js/mermaid/blob/develop/CONTRIBUTING.md)
-- [ ] :computer: have added unit/e2e tests (if appropriate)
-- [ ] :notebook: have added documentation (if appropriate)
+- [ ] :computer: have added necessary unit/e2e tests.
+- [ ] :notebook: have added documentation. Make sure [`MERMAID_RELEASE_VERSION`](https://github.com/mermaid-js/mermaid/blob/develop/packages/mermaid/src/docs/community/development.md#3-update-documentation) is used for all new features.
 - [ ] :bookmark: targeted `develop` branch

.github/release-drafter.yml

@@ -1,14 +1,27 @@
 name-template: '$NEXT_PATCH_VERSION'
 tag-template: '$NEXT_PATCH_VERSION'
 categories:
+  - title: '🚨 **Breaking Changes**'
+    labels:
+      - 'Breaking Change'
   - title: '🚀 Features'
     labels:
       - 'Type: Enhancement'
+      - 'feature' # deprecated, new PRs shouldn't have this
   - title: '🐛 Bug Fixes'
     labels:
       - 'Type: Bug / Error'
+      - 'fix' # deprecated, new PRs shouldn't have this
   - title: '🧰 Maintenance'
-    label: 'Type: Other'
+    labels:
+      - 'Type: Other'
+      - 'chore' # deprecated, new PRs shouldn't have this
+  - title: '⚡️ Performance'
+    labels:
+      - 'Type: Performance'
+  - title: '📚 Documentation'
+    labels:
+      - 'Area: Documentation'
 change-template: '- $TITLE (#$NUMBER) @$AUTHOR'
 sort-by: title
 sort-direction: ascending

.github/workflows/build-docs.yml

@@ -1,14 +1,18 @@
 name: Build Vitepress docs
 
 on:
+  push:
+    branches:
+      - master
+      - release/*
   pull_request:
+  merge_group:
 
 permissions:
   contents: read
 
 jobs:
-  # Build job
-  build:
+  build-docs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
@@ -25,5 +29,9 @@ jobs:
       - name: Install Packages
         run: pnpm install --frozen-lockfile
 
+      - name: Verify release verion
+        if: ${{ github.event_name == 'push' && (github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/heads/release')) }}
+        run: pnpm --filter mermaid run docs:verify-version
+
       - name: Run Build
         run: pnpm --filter mermaid run docs:build:vitepress

.github/workflows/build.yml

@@ -2,6 +2,7 @@ name: Build
 
 on:
   push: {}
+  merge_group:
   pull_request:
     types:
       - opened
@@ -12,7 +13,7 @@ permissions:
   contents: read
 
 jobs:
-  build:
+  build-mermaid:
     runs-on: ubuntu-latest
     strategy:
       matrix:

.github/workflows/check-readme-in-sync.yml

@@ -14,7 +14,7 @@ permissions:
   contents: read
 
 jobs:
-  check:
+  check-readme:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository

.github/workflows/checks.yml

@@ -1,15 +1,16 @@
 on:
-  push: {}
+  push:
+  merge_group:
   pull_request:
     types:
       - opened
       - synchronize
       - ready_for_review
 
-name: Static analysis
+name: Static analysis on Test files
 
 jobs:
-  test:
+  check-tests:
     runs-on: ubuntu-latest
     name: check tests
     if: github.repository_owner == 'mermaid-js'

.github/workflows/e2e-applitools.yml

@@ -19,7 +19,7 @@ env:
   USE_APPLI: ${{ secrets.APPLITOOLS_API_KEY && 'true' || '' }}
 
 jobs:
-  test:
+  e2e-applitools:
     runs-on: ubuntu-latest
     strategy:
       matrix:

.github/workflows/e2e.yml

@@ -1,12 +1,15 @@
 name: E2E
 
-on: [push, pull_request]
+on:
+  push:
+  pull_request:
+  merge_group:
 
 permissions:
   contents: read
 
 jobs:
-  build:
+  e2e:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
@@ -42,15 +45,18 @@ jobs:
         env:
           CYPRESS_RECORD_KEY: ${{ secrets.CYPRESS_RECORD_KEY }}
           VITEST_COVERAGE: true
+          CYPRESS_COMMIT: ${{ github.sha }}
       - name: Upload Coverage to Codecov
         uses: codecov/codecov-action@v3
-        if: steps.cypress.conclusion == 'success'
+        # Run step only pushes to develop and pull_requests
+        if: ${{ steps.cypress.conclusion == 'success' && (github.event_name == 'pull_request' || github.ref == 'refs/heads/develop')}}
         with:
           files: coverage/cypress/lcov.info
           flags: e2e
           name: mermaid-codecov
-          fail_ci_if_error: true
+          fail_ci_if_error: false
           verbose: true
+          token: 6845cc80-77ee-4e17-85a1-026cd95e0766
       - name: Upload Artifacts
         uses: actions/upload-artifact@v3
         if: ${{ failure() && steps.cypress.conclusion == 'failure' }}

.github/workflows/link-checker.yml

@@ -20,7 +20,7 @@ on:
     - cron: '30 8 * * *'
 
 jobs:
-  linkChecker:
+  link-checker:
     runs-on: ubuntu-latest
     permissions:
       # lychee only uses the GITHUB_TOKEN to avoid rate-limiting
@@ -39,10 +39,7 @@ jobs:
         uses: lycheeverse/lychee-action@v1.8.0
         with:
           args: >-
-            --verbose
-            --no-progress
-            --cache
-            --max-cache-age 1d
+            --config .github/lychee.toml
             packages/mermaid/src/docs/**/*.md
             README.md
             README.zh-CN.md

.github/workflows/lint.yml

@@ -1,7 +1,8 @@
 name: Lint
 
 on:
-  push: {}
+  push:
+  merge_group:
   pull_request:
     types:
       - opened
@@ -52,6 +53,33 @@ jobs:
               exit 1
           fi
 
+      - name: Verify `./src/config.type.ts` is in sync with `./src/schemas/config.schema.yaml`
+        shell: bash
+        run: |
+          if ! pnpm run --filter mermaid types:verify-config; then
+            ERROR_MESSAGE='Running `pnpm run --filter mermaid types:verify-config` failed.'
+            ERROR_MESSAGE+=' This should be fixed by running'
+            ERROR_MESSAGE+=' `pnpm run --filter mermaid types:build-config`'
+            ERROR_MESSAGE+=' on your local machine.'
+            echo "::error title=Lint failure::${ERROR_MESSAGE}"
+            # make sure to return an error exitcode so that GitHub actions shows a red-cross
+            exit 1
+          fi
+
+      - name: Verify no circular dependencies
+        working-directory: ./packages/mermaid
+        shell: bash
+        run: |
+          if ! pnpm run --filter mermaid checkCircle; then
+            ERROR_MESSAGE='Circular dependency detected.'
+            ERROR_MESSAGE+=' This should be fixed by removing the circular dependency.'
+            ERROR_MESSAGE+=' Run `pnpm run --filter mermaid checkCircle` on your local machine'
+            ERROR_MESSAGE+=' to see the circular dependency.'
+            echo "::error title=Lint failure::${ERROR_MESSAGE}"
+            # make sure to return an error exitcode so that GitHub actions shows a red-cross
+            exit 1
+          fi
+
       - name: Verify Docs
         id: verifyDocs
         working-directory: ./packages/mermaid

.github/workflows/pr-labeler-config-validator.yml

@@ -1,11 +1,15 @@
 name: Validate PR Labeler Configuration
 on:
-  push: {}
+  push:
+    paths:
+      - .github/workflows/pr-labeler-config-validator.yml
+      - .github/workflows/pr-labeler.yml
+      - .github/pr-labeler.yml
   pull_request:
-    types:
-      - opened
-      - synchronize
-      - ready_for_review
+    paths:
+      - .github/workflows/pr-labeler-config-validator.yml
+      - .github/workflows/pr-labeler.yml
+      - .github/pr-labeler.yml
 
 jobs:
   pr-labeler:

.github/workflows/publish-docs.yml

@@ -19,7 +19,7 @@ concurrency:
 
 jobs:
   # Build job
-  build:
+  build-docs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
@@ -48,11 +48,11 @@ jobs:
           path: packages/mermaid/src/vitepress/.vitepress/dist
 
   # Deployment job
-  deploy:
+  deploy-docs:
     environment:
       name: github-pages
     runs-on: ubuntu-latest
-    needs: build
+    needs: build-docs
     steps:
       - name: Deploy to GitHub Pages
         id: deployment

.github/workflows/release-preview-publish.yml

@@ -6,7 +6,7 @@ on:
       - 'release/**'
 
 jobs:
-  publish:
+  publish-preview:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3

.github/workflows/test.yml

@@ -1,12 +1,12 @@
 name: Unit Tests
 
-on: [push, pull_request]
+on: [push, pull_request, merge_group]
 
 permissions:
   contents: read
 
 jobs:
-  build:
+  unit-test:
     runs-on: ubuntu-latest
     strategy:
       matrix:
@@ -43,15 +43,12 @@ jobs:
 
       - name: Upload Coverage to Codecov
         uses: codecov/codecov-action@v3
+        # Run step only pushes to develop and pull_requests
+        if: ${{ github.event_name == 'pull_request' || github.ref == 'refs/heads/develop' }}
         with:
           files: ./coverage/vitest/lcov.info
           flags: unit
           name: mermaid-codecov
-          fail_ci_if_error: true
+          fail_ci_if_error: false
           verbose: true
-      # Coveralls is throwing 500. Disabled for now.
-      # - name: Upload Coverage to Coveralls
-      #   uses: coverallsapp/github-action@v2
-      #   with:
-      #     github-token: ${{ secrets.GITHUB_TOKEN }}
-      #     flag-name: unit
+          token: 6845cc80-77ee-4e17-85a1-026cd95e0766

.github/workflows/update-browserlist.yml

@@ -5,7 +5,7 @@ on:
   workflow_dispatch:
 
 jobs:
-  build:
+  update-browser-list:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3

.gitignore

@@ -43,3 +43,10 @@ stats/
 **/contributor-names.json
 .pnpm-store
 .nyc_output
+
+demos/dev/**
+!/demos/dev/example.html
+!/demos/dev/reload.js
+
+# autogenereated by langium-cli
+generated/

.lycheeignore

@@ -1,17 +0,0 @@
-# These links are ignored by our link checker https://github.com/lycheeverse/lychee
-# The file allows you to list multiple regular expressions for exclusion (one pattern per line).
-
-# Network error: Forbidden
-https://codepen.io
-
-# Timeout error, maybe Twitter has anti-bot defenses against GitHub's CI servers?
-https://twitter.com/mermaidjs_
-
-# Don't check files that are generated during the build via `pnpm docs:code`
-packages/mermaid/src/docs/config/setup/*
-
-# Ignore localhost
-http://localhost:3333/
-
-# Ignore slack invite
-https://join.slack.com/

.prettierignore

@@ -5,5 +5,11 @@ coverage
 # Autogenerated by PNPM
 pnpm-lock.yaml
 stats
-packages/mermaid/src/docs/.vitepress/components.d.ts
+**/.vitepress/components.d.ts
+**/.vitepress/cache
 .nyc_output
+# Autogenerated by `pnpm run --filter mermaid types:build-config`
+packages/mermaid/src/config.type.ts
+
+# autogenereated by langium-cli
+generated/

.vite/build.ts

@@ -2,11 +2,13 @@ import { build, InlineConfig, type PluginOption } from 'vite';
 import { resolve } from 'path';
 import { fileURLToPath } from 'url';
 import jisonPlugin from './jisonPlugin.js';
-import { readFileSync } from 'fs';
+import jsonSchemaPlugin from './jsonSchemaPlugin.js';
 import typescript from '@rollup/plugin-typescript';
 import { visualizer } from 'rollup-plugin-visualizer';
 import type { TemplateType } from 'rollup-plugin-visualizer/dist/plugin/template-types.js';
 import istanbul from 'vite-plugin-istanbul';
+import { packageOptions } from '../.build/common.js';
+import { generateLangium } from '../.build/generateLangium.js';
 
 const visualize = process.argv.includes('--visualize');
 const watch = process.argv.includes('--watch');
@@ -35,24 +37,6 @@ const visualizerOptions = (packageName: string, core = false): PluginOption[] =>
   );
 };
 
-const packageOptions = {
-  mermaid: {
-    name: 'mermaid',
-    packageName: 'mermaid',
-    file: 'mermaid.ts',
-  },
-  'mermaid-example-diagram': {
-    name: 'mermaid-example-diagram',
-    packageName: 'mermaid-example-diagram',
-    file: 'detector.ts',
-  },
-  'mermaid-zenuml': {
-    name: 'mermaid-zenuml',
-    packageName: 'mermaid-zenuml',
-    file: 'detector.ts',
-  },
-};
-
 interface BuildOptions {
   minify: boolean | 'esbuild';
   core?: boolean;
@@ -71,34 +55,8 @@ export const getBuildConfig = ({ minify, core, watch, entryName }: BuildOptions)
       sourcemap,
       entryFileNames: `${name}.esm${minify ? '.min' : ''}.mjs`,
     },
-    {
-      name,
-      format: 'umd',
-      sourcemap,
-      entryFileNames: `${name}${minify ? '.min' : ''}.js`,
-    },
   ];
 
-  if (core) {
-    const { dependencies } = JSON.parse(
-      readFileSync(resolve(__dirname, `../packages/${packageName}/package.json`), 'utf-8')
-    );
-    // Core build is used to generate file without bundled dependencies.
-    // This is used by downstream projects to bundle dependencies themselves.
-    // Ignore dependencies and any dependencies of dependencies
-    // Adapted from the RegEx used by `rollup-plugin-node`
-    external.push(new RegExp('^(?:' + Object.keys(dependencies).join('|') + ')(?:/.+)?$'));
-    // This needs to be an array. Otherwise vite will build esm & umd with same name and overwrite esm with umd.
-    output = [
-      {
-        name,
-        format: 'esm',
-        sourcemap,
-        entryFileNames: `${name}.core.mjs`,
-      },
-    ];
-  }
-
   const config: InlineConfig = {
     configFile: false,
     build: {
@@ -121,10 +79,11 @@ export const getBuildConfig = ({ minify, core, watch, entryName }: BuildOptions)
     },
     plugins: [
       jisonPlugin(),
+      jsonSchemaPlugin(), // handles `.schema.yaml` files
       // @ts-expect-error According to the type definitions, rollup plugins are incompatible with vite
       typescript({ compilerOptions: { declaration: false } }),
       istanbul({
-        exclude: ['node_modules', 'test/', '__mocks__'],
+        exclude: ['node_modules', 'test/', '__mocks__', 'generated'],
         extension: ['.js', '.ts'],
         requireEnv: true,
         forceBuildInstrument: coverage,
@@ -144,24 +103,28 @@ export const getBuildConfig = ({ minify, core, watch, entryName }: BuildOptions)
 
 const buildPackage = async (entryName: keyof typeof packageOptions) => {
   await build(getBuildConfig({ minify: false, entryName }));
-  await build(getBuildConfig({ minify: 'esbuild', entryName }));
-  await build(getBuildConfig({ minify: false, core: true, entryName }));
 };
 
 const main = async () => {
   const packageNames = Object.keys(packageOptions) as (keyof typeof packageOptions)[];
-  for (const pkg of packageNames.filter((pkg) => !mermaidOnly || pkg === 'mermaid')) {
+  for (const pkg of packageNames.filter(
+    (pkg) => !mermaidOnly || pkg === 'mermaid' || pkg === 'parser'
+  )) {
     await buildPackage(pkg);
   }
 };
 
+await generateLangium();
+
 if (watch) {
+  await build(getBuildConfig({ minify: false, watch, core: false, entryName: 'parser' }));
   build(getBuildConfig({ minify: false, watch, core: false, entryName: 'mermaid' }));
   if (!mermaidOnly) {
     build(getBuildConfig({ minify: false, watch, entryName: 'mermaid-example-diagram' }));
     build(getBuildConfig({ minify: false, watch, entryName: 'mermaid-zenuml' }));
   }
 } else if (visualize) {
+  await build(getBuildConfig({ minify: false, watch, core: false, entryName: 'parser' }));
   await build(getBuildConfig({ minify: false, core: true, entryName: 'mermaid' }));
   await build(getBuildConfig({ minify: false, core: false, entryName: 'mermaid' }));
 } else {

.vite/jisonPlugin.ts

@@ -1,10 +1,10 @@
-import { transformJison } from './jisonTransformer.js';
+import { transformJison } from '../.build/jisonTransformer.js';
+
 const fileRegex = /\.(jison)$/;
 
 export default function jison() {
   return {
     name: 'jison',
-
     transform(src: string, id: string) {
       if (fileRegex.test(id)) {
         return {

.vite/jsonSchemaPlugin.ts

@@ -0,0 +1,28 @@
+import { PluginOption } from 'vite';
+import { getDefaults, getSchema, loadSchema } from '../.build/jsonSchema.js';
+
+/**
+ * Vite plugin that handles JSON Schemas saved as a `.schema.yaml` file.
+ *
+ * Use `my-example.schema.yaml?only-defaults=true` to only load the default values.
+ */
+export default function jsonSchemaPlugin(): PluginOption {
+  return {
+    name: 'json-schema-plugin',
+    transform(src: string, id: string) {
+      const idAsUrl = new URL(id, 'file:///');
+
+      if (!idAsUrl.pathname.endsWith('schema.yaml')) {
+        return;
+      }
+
+      const jsonSchema = loadSchema(src, idAsUrl.pathname);
+      return {
+        code: idAsUrl.searchParams.get('only-defaults')
+          ? getDefaults(jsonSchema)
+          : getSchema(jsonSchema),
+        map: null, // no source map
+      };
+    },
+  };
+}

.vite/server.ts

@@ -14,6 +14,7 @@ async function createServer() {
   });
 
   app.use(cors());
+  app.use(express.static('./packages/parser/dist'));
   app.use(express.static('./packages/mermaid/dist'));
   app.use(express.static('./packages/mermaid-zenuml/dist'));
   app.use(express.static('./packages/mermaid-example-diagram/dist'));

.vscode/launch.json

@@ -17,7 +17,7 @@
       "name": "Docs generation",
       "type": "node",
       "request": "launch",
-      "args": ["src/docs.mts"],
+      "args": ["scripts/docs.cli.mts"],
       "runtimeArgs": ["--loader", "ts-node/esm"],
       "cwd": "${workspaceRoot}/packages/mermaid",
       "skipFiles": ["<node_internals>/**", "**/node_modules/**"],

CONTRIBUTING.md

@@ -26,9 +26,14 @@ Install required packages:
 ```bash
 # npx is required for first install as volta support for pnpm is not added yet.
 npx pnpm install
-pnpm test
+pnpm test # run unit tests
+pnpm dev # starts a dev server
 ```
 
+Open <http://localhost:9000> in your browser after starting the dev server.
+You can also duplicate the `example.html` file in `demos/dev`, rename it and add your own mermaid code to it.
+That will be served at <http://localhost:9000/dev/your-file-name.html>.
+
 ### Docker
 
 If you are using docker and docker-compose, you have self-documented `run` bash script, which is a convenient alias for docker-compose commands:
@@ -64,7 +69,7 @@ eg: `feature/2945_state-diagram-new-arrow-florbs`, `bug/1123_fix_random_ugly_red
 
 Documentation is necessary for all non bugfix/refactoring changes.
 
-Only make changes to files are in [`/packages/mermaid/src/docs`](packages/mermaid/src/docs)
+Only make changes to files that are in [`/packages/mermaid/src/docs`](packages/mermaid/src/docs)
 
 **_DO NOT CHANGE FILES IN `/docs`_**
 

README.md

@@ -60,7 +60,7 @@ Use Mermaid with your favorite applications, check out the list of [Integrations
 
 You can also use Mermaid within [GitHub](https://github.blog/2022-02-14-include-diagrams-markdown-files-mermaid/) as well many of your other favorite applications—check out the list of [Integrations and Usages of Mermaid](./docs/ecosystem/integrations.md).
 
-For a more detailed introduction to Mermaid and some of its more basic uses, look to the [Beginner's Guide](./docs/community/n00b-overview.md), [Usage](./docs/config/usage.md) and [Tutorials](./docs/config/Tutorials.md).
+For a more detailed introduction to Mermaid and some of its more basic uses, look to the [Beginner's Guide](./docs/intro/getting-started.md), [Usage](./docs/config/usage.md) and [Tutorials](./docs/config/Tutorials.md).
 
 In our release process we rely heavily on visual regression tests using [applitools](https://applitools.com/). Applitools is a great service which has been easy to use and integrate with our tests.
 

README.zh-CN.md

@@ -55,7 +55,7 @@ Mermaid 通过允许用户创建便于修改的图表来解决这一难题，它
 Mermaid 甚至能让非程序员也能通过 [Mermaid Live Editor](https://mermaid.live/) 轻松创建详细的图表。<br/>
 你可以访问 [教程](./docs/config/Tutorials.md) 来查看 Live Editor 的视频教程，也可以查看 [Mermaid 的集成和使用](./docs/ecosystem/integrations.md) 这个清单来检查你的文档工具是否已经集成了 Mermaid 支持。
 
-如果想要查看关于 Mermaid 更详细的介绍及基础使用方式，可以查看 [入门指引](./docs/community/n00b-overview.md), [用法](./docs/config/usage.md) 和 [教程](./docs/config/Tutorials.md).
+如果想要查看关于 Mermaid 更详细的介绍及基础使用方式，可以查看 [入门指引](./docs/intro/getting-started.md), [用法](./docs/config/usage.md) 和 [教程](./docs/config/Tutorials.md).
 
 <!-- </Main description> -->
 

__mocks__/pieRenderer.ts

@@ -0,0 +1,8 @@
+/**
+ * Mocked pie (picChart) diagram renderer
+ */
+import { vi } from 'vitest';
+
+const draw = vi.fn().mockImplementation(() => '');
+
+export const renderer = { draw };

__mocks__/sankeyRenderer.js

@@ -1,5 +1,5 @@
 /**
- * Mocked pie (picChart) diagram renderer
+ * Mocked Sankey diagram renderer
  */
 
 import { vi } from 'vitest';

cSpell.json

@@ -44,6 +44,7 @@
     "faber",
     "flatmap",
     "foswiki",
+    "frontmatter",
     "ftplugin",
     "gantt",
     "gitea",
@@ -56,6 +57,7 @@
     "gzipped",
     "huynh",
     "huynhicode",
+    "iife",
     "inkdrop",
     "jaoude",
     "jgreywolf",
@@ -69,6 +71,7 @@
     "knut",
     "knutsveidqvist",
     "laganeckas",
+    "langium",
     "linetype",
     "lintstagedrc",
     "logmsg",
@@ -80,6 +83,7 @@
     "mdbook",
     "mermaidjs",
     "mermerd",
+    "metafile",
     "mindaugas",
     "mindmap",
     "mindmaps",
@@ -89,7 +93,11 @@
     "mult",
     "neurodiverse",
     "nextra",
+    "nikolay",
+    "nirname",
+    "npmjs",
     "orlandoni",
+    "outdir",
     "pathe",
     "pbrolin",
     "phpbb",
@@ -102,10 +110,14 @@
     "ranksep",
     "rect",
     "rects",
+    "reda",
     "redmine",
+    "regexes",
     "rehype",
     "roledescription",
+    "rozhkov",
     "sandboxed",
+    "sankey",
     "setupgraphviewbox",
     "shiki",
     "sidharth",
@@ -120,6 +132,7 @@
     "stylis",
     "subhash-halder",
     "substate",
+    "sulais",
     "sveidqvist",
     "swimm",
     "techn",
@@ -130,6 +143,7 @@
     "tsdoc",
     "tuleap",
     "tylerlong",
+    "typora",
     "ugge",
     "unist",
     "unocss",
@@ -143,7 +157,9 @@
     "vueuse",
     "xlink",
     "yash",
-    "zenuml"
+    "yokozuna",
+    "zenuml",
+    "zune"
   ],
   "patterns": [
     { "name": "Markdown links", "pattern": "\\((.*)\\)", "description": "" },

cypress/helpers/util.js

@@ -1,93 +0,0 @@
-const utf8ToB64 = (str) => {
-  return window.btoa(unescape(encodeURIComponent(str)));
-};
-
-const batchId = 'mermaid-batch' + new Date().getTime();
-
-export const mermaidUrl = (graphStr, options, api) => {
-  const obj = {
-    code: graphStr,
-    mermaid: options,
-  };
-  const objStr = JSON.stringify(obj);
-  let url = 'http://localhost:9000/e2e.html?graph=' + utf8ToB64(objStr);
-  if (api) {
-    url = 'http://localhost:9000/xss.html?graph=' + graphStr;
-  }
-
-  if (options.listUrl) {
-    cy.log(options.listId, ' ', url);
-  }
-
-  return url;
-};
-
-export const imgSnapshotTest = (graphStr, _options = {}, api = false, validation = undefined) => {
-  cy.log(_options);
-  const options = Object.assign(_options);
-  if (!options.fontFamily) {
-    options.fontFamily = 'courier';
-  }
-  if (!options.sequence) {
-    options.sequence = {};
-  }
-  if (!options.sequence || (options.sequence && !options.sequence.actorFontFamily)) {
-    options.sequence.actorFontFamily = 'courier';
-  }
-  if (options.sequence && !options.sequence.noteFontFamily) {
-    options.sequence.noteFontFamily = 'courier';
-  }
-  options.sequence.actorFontFamily = 'courier';
-  options.sequence.noteFontFamily = 'courier';
-  options.sequence.messageFontFamily = 'courier';
-  if (options.sequence && !options.sequence.actorFontFamily) {
-    options.sequence.actorFontFamily = 'courier';
-  }
-  if (!options.fontSize) {
-    options.fontSize = '16px';
-  }
-  const url = mermaidUrl(graphStr, options, api);
-  openURLAndVerifyRendering(url, options, validation);
-};
-
-export const urlSnapshotTest = (url, _options, api = false, validation) => {
-  const options = Object.assign(_options);
-  openURLAndVerifyRendering(url, options, validation);
-};
-
-export const renderGraph = (graphStr, options, api) => {
-  const url = mermaidUrl(graphStr, options, api);
-  openURLAndVerifyRendering(url, options);
-};
-
-export const openURLAndVerifyRendering = (url, options, validation = undefined) => {
-  const useAppli = Cypress.env('useAppli');
-  const name = (options.name || cy.state('runnable').fullTitle()).replace(/\s+/g, '-');
-
-  if (useAppli) {
-    cy.log('Opening eyes ' + Cypress.spec.name + ' --- ' + name);
-    cy.eyesOpen({
-      appName: 'Mermaid',
-      testName: name,
-      batchName: Cypress.spec.name,
-      batchId: batchId + Cypress.spec.name,
-    });
-  }
-
-  cy.visit(url);
-  cy.window().should('have.property', 'rendered', true);
-  cy.get('svg').should('be.visible');
-
-  if (validation) {
-    cy.get('svg').should(validation);
-  }
-
-  if (useAppli) {
-    cy.log('Check eyes' + Cypress.spec.name);
-    cy.eyesCheckWindow('Click!');
-    cy.log('Closing eyes' + Cypress.spec.name);
-    cy.eyesClose();
-  } else {
-    cy.matchImageSnapshot(name);
-  }
-};

cypress/helpers/util.ts

@@ -0,0 +1,136 @@
+/* eslint-disable @typescript-eslint/no-explicit-any */
+import { Buffer } from 'buffer';
+import type { MermaidConfig } from '../../packages/mermaid/src/config.type.js';
+
+interface CypressConfig {
+  listUrl?: boolean;
+  listId?: string;
+  name?: string;
+}
+type CypressMermaidConfig = MermaidConfig & CypressConfig;
+
+interface CodeObject {
+  code: string;
+  mermaid: CypressMermaidConfig;
+}
+
+const utf8ToB64 = (str: string): string => {
+  return Buffer.from(decodeURIComponent(encodeURIComponent(str))).toString('base64');
+};
+
+const batchId: string =
+  'mermaid-batch-' +
+  (Cypress.env('useAppli')
+    ? Date.now().toString()
+    : Cypress.env('CYPRESS_COMMIT') || Date.now().toString());
+
+export const mermaidUrl = (
+  graphStr: string,
+  options: CypressMermaidConfig,
+  api: boolean
+): string => {
+  const codeObject: CodeObject = {
+    code: graphStr,
+    mermaid: options,
+  };
+  const objStr: string = JSON.stringify(codeObject);
+  let url = `http://localhost:9000/e2e.html?graph=${utf8ToB64(objStr)}`;
+  if (api) {
+    url = `http://localhost:9000/xss.html?graph=${graphStr}`;
+  }
+
+  if (options.listUrl) {
+    cy.log(options.listId, ' ', url);
+  }
+
+  return url;
+};
+
+export const imgSnapshotTest = (
+  graphStr: string,
+  _options: CypressMermaidConfig = {},
+  api = false,
+  validation?: any
+): void => {
+  cy.log(JSON.stringify(_options));
+  const options: CypressMermaidConfig = Object.assign(_options);
+  if (!options.fontFamily) {
+    options.fontFamily = 'courier';
+  }
+  if (!options.sequence) {
+    options.sequence = {};
+  }
+  if (!options.sequence || (options.sequence && !options.sequence.actorFontFamily)) {
+    options.sequence.actorFontFamily = 'courier';
+  }
+  if (options.sequence && !options.sequence.noteFontFamily) {
+    options.sequence.noteFontFamily = 'courier';
+  }
+  options.sequence.actorFontFamily = 'courier';
+  options.sequence.noteFontFamily = 'courier';
+  options.sequence.messageFontFamily = 'courier';
+  if (options.sequence && !options.sequence.actorFontFamily) {
+    options.sequence.actorFontFamily = 'courier';
+  }
+  if (!options.fontSize) {
+    options.fontSize = 16;
+  }
+
+  const url: string = mermaidUrl(graphStr, options, api);
+  openURLAndVerifyRendering(url, options, validation);
+};
+
+export const urlSnapshotTest = (
+  url: string,
+  _options: CypressMermaidConfig,
+  _api = false,
+  validation?: any
+): void => {
+  const options: CypressMermaidConfig = Object.assign(_options);
+  openURLAndVerifyRendering(url, options, validation);
+};
+
+export const renderGraph = (
+  graphStr: string,
+  options: CypressMermaidConfig = {},
+  api = false
+): void => {
+  const url: string = mermaidUrl(graphStr, options, api);
+  openURLAndVerifyRendering(url, options);
+};
+
+export const openURLAndVerifyRendering = (
+  url: string,
+  options: CypressMermaidConfig,
+  validation?: any
+): void => {
+  const useAppli: boolean = Cypress.env('useAppli');
+  const name: string = (options.name || cy.state('runnable').fullTitle()).replace(/\s+/g, '-');
+
+  if (useAppli) {
+    cy.log(`Opening eyes ${Cypress.spec.name} --- ${name}`);
+    cy.eyesOpen({
+      appName: 'Mermaid',
+      testName: name,
+      batchName: Cypress.spec.name,
+      batchId: batchId + Cypress.spec.name,
+    });
+  }
+
+  cy.visit(url);
+  cy.window().should('have.property', 'rendered', true);
+  cy.get('svg').should('be.visible');
+
+  if (validation) {
+    cy.get('svg').should(validation);
+  }
+
+  if (useAppli) {
+    cy.log(`Check eyes ${Cypress.spec.name}`);
+    cy.eyesCheckWindow('Click!');
+    cy.log(`Closing eyes ${Cypress.spec.name}`);
+    cy.eyesClose();
+  } else {
+    cy.matchImageSnapshot(name);
+  }
+};

cypress/integration/other/configuration.spec.js

@@ -1,4 +1,4 @@
-import { renderGraph } from '../../helpers/util.js';
+import { renderGraph } from '../../helpers/util.ts';
 describe('Configuration', () => {
   describe('arrowMarkerAbsolute', () => {
     it('should handle default value false of arrowMarkerAbsolute', () => {

cypress/integration/other/external-diagrams.spec.js

@@ -1,4 +1,4 @@
-import { urlSnapshotTest } from '../../helpers/util.js';
+import { urlSnapshotTest } from '../../helpers/util.ts';
 
 describe('mermaid', () => {
   describe('registerDiagram', () => {

cypress/integration/other/ghsa.spec.js

@@ -1,4 +1,4 @@
-import { urlSnapshotTest, openURLAndVerifyRendering } from '../../helpers/util.js';
+import { urlSnapshotTest, openURLAndVerifyRendering } from '../../helpers/util.ts';
 
 describe('CSS injections', () => {
   it('should not allow CSS injections outside of the diagram', () => {

cypress/integration/other/iife.spec.js

@@ -0,0 +1,11 @@
+describe('IIFE', () => {
+  beforeEach(() => {
+    cy.visit('http://localhost:9000/iife.html');
+  });
+
+  it('should render when using mermaid.min.js', () => {
+    cy.window().should('have.property', 'rendered', true);
+    cy.get('svg').should('be.visible');
+    cy.get('#d2').should('contain', 'Hello');
+  });
+});

cypress/integration/other/webpackUsage.spec.js

@@ -1,16 +0,0 @@
-describe('Sequencediagram', () => {
-  it('should render a simple sequence diagrams', () => {
-    const url = 'http://localhost:9000/webpackUsage.html';
-
-    cy.visit(url);
-    cy.get('body').find('svg').should('have.length', 1);
-  });
-  it('should handle html escapings properly', () => {
-    const url = 'http://localhost:9000/webpackUsage.html?test-html-escaping=true';
-
-    cy.visit(url);
-    cy.get('body').find('svg').should('have.length', 1);
-
-    cy.get('g.label > foreignobject > div').should('not.contain.text', '<b>');
-  });
-});

cypress/integration/other/xss.spec.js

@@ -1,4 +1,4 @@
-import { mermaidUrl } from '../../helpers/util.js';
+import { mermaidUrl } from '../../helpers/util.ts';
 describe('XSS', () => {
   it('should handle xss in tags', () => {
     const str =

cypress/integration/rendering/appli.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest } from '../../helpers/util.js';
+import { imgSnapshotTest } from '../../helpers/util.ts';
 
 describe('Git Graph diagram', () => {
   it('1: should render a simple gitgraph with commit on main branch', () => {

cypress/integration/rendering/c4.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest, renderGraph } from '../../helpers/util.js';
+import { imgSnapshotTest, renderGraph } from '../../helpers/util.ts';
 
 describe('C4 diagram', () => {
   it('should render a simple C4Context diagram', () => {

cypress/integration/rendering/classDiagram-v2.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest } from '../../helpers/util.js';
+import { imgSnapshotTest } from '../../helpers/util.ts';
 describe('Class diagram V2', () => {
   it('0: should render a simple class diagram', () => {
     imgSnapshotTest(

cypress/integration/rendering/classDiagram.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest, renderGraph } from '../../helpers/util.js';
+import { imgSnapshotTest, renderGraph } from '../../helpers/util.ts';
 
 describe('Class diagram', () => {
   it('1: should render a simple class diagram', () => {
@@ -423,4 +423,82 @@ describe('Class diagram', () => {
     );
     cy.get('svg');
   });
+
+  it('should render class diagram with newlines in title', () => {
+    imgSnapshotTest(`
+      classDiagram
+        Animal <|-- \`Du\nck\`
+        Animal : +int age
+        Animal : +String gender
+        Animal: +isMammal()
+        Animal: +mate()
+        class \`Du\nck\` {
+          +String beakColor
+          +String featherColor
+          +swim()
+          +quack()
+        }
+      `);
+    cy.get('svg');
+  });
+
+  it('should render class diagram with many newlines in title', () => {
+    imgSnapshotTest(`
+    classDiagram
+      class \`This\nTitle\nHas\nMany\nNewlines\` {
+        +String Also
+        -Stirng Many
+        #int Members
+        +And()
+        -Many()
+        #Methods()
+      }
+    `);
+  });
+
+  it('should render with newlines in title and an annotation', () => {
+    imgSnapshotTest(`
+    classDiagram
+      class \`This\nTitle\nHas\nMany\nNewlines\` {
+        +String Also
+        -Stirng Many
+        #int Members
+        +And()
+        -Many()
+        #Methods()
+      }
+      &lt;&lt;Interface&gt;&gt; \`This\nTitle\nHas\nMany\nNewlines\`  
+    `);
+  });
+
+  it('should handle newline title in namespace', () => {
+    imgSnapshotTest(`
+    classDiagram
+      namespace testingNamespace {
+      class \`This\nTitle\nHas\nMany\nNewlines\` {
+        +String Also
+        -Stirng Many
+        #int Members
+        +And()
+        -Many()
+        #Methods()
+      }
+    }
+    `);
+  });
+
+  it('should handle newline in string label', () => {
+    imgSnapshotTest(`
+      classDiagram
+        class A["This has\na newline!"] {
+          +String boop
+          -Int beep
+          #double bop
+        }
+
+        class B["This title also has\na newline"]
+        B : +with(more)
+        B : -methods()
+      `);
+  });
 });

cypress/integration/rendering/conf-and-directives.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest } from '../../helpers/util.js';
+import { imgSnapshotTest } from '../../helpers/util.ts';
 
 describe('Configuration and directives - nodes should be light blue', () => {
   it('No config - use default', () => {
@@ -14,7 +14,6 @@ describe('Configuration and directives - nodes should be light blue', () => {
         `,
       {}
     );
-    cy.get('svg');
   });
   it('Settings from initialize - nodes should be green', () => {
     imgSnapshotTest(
@@ -28,7 +27,6 @@ graph TD
           end          `,
       { theme: 'forest' }
     );
-    cy.get('svg');
   });
   it('Settings from initialize overriding themeVariable - nodes should be red', () => {
     imgSnapshotTest(
@@ -46,7 +44,6 @@ graph TD
         `,
       { theme: 'base', themeVariables: { primaryColor: '#ff0000' }, logLevel: 0 }
     );
-    cy.get('svg');
   });
   it('Settings from directive - nodes should be grey', () => {
     imgSnapshotTest(
@@ -62,7 +59,24 @@ graph TD
         `,
       {}
     );
-    cy.get('svg');
+  });
+  it('Settings from frontmatter - nodes should be grey', () => {
+    imgSnapshotTest(
+      `
+---
+config:
+  theme: neutral
+---
+graph TD
+          A(Start) --> B[/Another/]
+          A[/Another/] --> C[End]
+          subgraph section
+            B
+            C
+          end
+        `,
+      {}
+    );
   });
 
   it('Settings from directive overriding theme variable - nodes should be red', () => {
@@ -79,7 +93,6 @@ graph TD
         `,
       {}
     );
-    cy.get('svg');
   });
   it('Settings from initialize and directive - nodes should be grey', () => {
     imgSnapshotTest(
@@ -95,7 +108,6 @@ graph TD
         `,
       { theme: 'forest' }
     );
-    cy.get('svg');
   });
   it('Theme from initialize, directive overriding theme variable - nodes should be red', () => {
     imgSnapshotTest(
@@ -111,8 +123,71 @@ graph TD
         `,
       { theme: 'base' }
     );
-    cy.get('svg');
   });
+  it('Theme from initialize, frontmatter overriding theme variable - nodes should be red', () => {
+    imgSnapshotTest(
+      `
+---
+config:
+  theme: base
+  themeVariables:
+    primaryColor: '#ff0000'
+---
+graph TD
+          A(Start) --> B[/Another/]
+          A[/Another/] --> C[End]
+          subgraph section
+            B
+            C
+          end
+        `,
+      { theme: 'forest' }
+    );
+  });
+  it('Theme from initialize, frontmatter overriding theme variable, directive overriding primaryColor - nodes should be red', () => {
+    imgSnapshotTest(
+      `
+---
+config:
+  theme: base
+  themeVariables:
+    primaryColor: '#00ff00'
+---
+%%{init: {'theme': 'base', 'themeVariables':{ 'primaryColor': '#ff0000'}}}%%
+graph TD
+          A(Start) --> B[/Another/]
+          A[/Another/] --> C[End]
+          subgraph section
+            B
+            C
+          end
+        `,
+      { theme: 'forest' }
+    );
+  });
+
+  it('should render if values are not quoted properly', () => {
+    // #ff0000 is not quoted properly, and will evaluate to null.
+    // This test ensures that the rendering still works.
+    imgSnapshotTest(
+      `---
+config:
+  theme: base
+  themeVariables:
+    primaryColor: #ff0000
+---
+graph TD
+          A(Start) --> B[/Another/]
+          A[/Another/] --> C[End]
+          subgraph section
+            B
+            C
+          end
+        `,
+      { theme: 'forest' }
+    );
+  });
+
   it('Theme variable from initialize, theme from directive - nodes should be red', () => {
     imgSnapshotTest(
       `
@@ -127,13 +202,11 @@ graph TD
         `,
       { themeVariables: { primaryColor: '#ff0000' } }
     );
-    cy.get('svg');
   });
   describe('when rendering several diagrams', () => {
     it('diagrams should not taint later diagrams', () => {
       const url = 'http://localhost:9000/theme-directives.html';
       cy.visit(url);
-      cy.get('svg');
       cy.matchImageSnapshot('conf-and-directives.spec-when-rendering-several-diagrams-diagram-1');
     });
   });

cypress/integration/rendering/current.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest } from '../../helpers/util.js';
+import { imgSnapshotTest } from '../../helpers/util.ts';
 
 describe('Current diagram', () => {
   it('should render a state with states in it', () => {

cypress/integration/rendering/debug.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest } from '../../helpers/util.js';
+import { imgSnapshotTest } from '../../helpers/util.ts';
 
 describe('Flowchart', () => {
   it('34: testing the label width in percy', () => {

cypress/integration/rendering/erDiagram.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest, renderGraph } from '../../helpers/util.js';
+import { imgSnapshotTest, renderGraph } from '../../helpers/util.ts';
 
 describe('Entity Relationship Diagram', () => {
   it('should render a simple ER diagram', () => {
@@ -200,6 +200,27 @@ describe('Entity Relationship Diagram', () => {
     );
   });
 
+  it('should render entities with attributes that begin with asterisk', () => {
+    imgSnapshotTest(
+      `
+    erDiagram
+        BOOK {
+          int         *id
+          string      name
+          varchar(99) summary
+        }
+        BOOK }o..o{ STORE : soldBy
+        STORE {
+          int         *id
+          string      name
+          varchar(50) address
+        }
+        `,
+      { loglevel: 1 }
+    );
+    cy.get('svg');
+  });
+
   it('should render entities with keys', () => {
     renderGraph(
       `
@@ -284,4 +305,21 @@ ORDER ||--|{ LINE-ITEM : contains
       {}
     );
   });
+
+  it('should render entities with entity name aliases', () => {
+    imgSnapshotTest(
+      `
+    erDiagram
+      p[Person] {
+        varchar(64) firstName
+        varchar(64) lastName
+      }
+      c["Customer Account"] {
+        varchar(128) email
+      }
+      p ||--o| c : has
+      `,
+      { logLevel: 1 }
+    );
+  });
 });

cypress/integration/rendering/flowchart-elk.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest, renderGraph } from '../../helpers/util.js';
+import { imgSnapshotTest, renderGraph } from '../../helpers/util.ts';
 
 describe.skip('Flowchart ELK', () => {
   it('1-elk: should render a simple flowchart', () => {
@@ -681,7 +681,7 @@ title: Simple flowchart
 flowchart-elk TD
 A --> B
 `,
-      { titleTopMargin: 0 }
+      { flowchart: { titleTopMargin: 0 } }
     );
   });
   it('elk: should include classes on the edges', () => {
@@ -710,7 +710,7 @@ flowchart-elk LR
     style id2 fill:#bbf,stroke:#f66,stroke-width:2px,color:#fff,stroke-dasharray: 5 5
     classDef someclass fill:#f96
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
       it('With formatting in a node', () => {
@@ -726,7 +726,7 @@ flowchart-elk LR
   b --> d(The dog in the hog)
   c --> d
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
       it('New line in node and formatted edge label', () => {
@@ -736,7 +736,7 @@ flowchart-elk LR
 b("\`The dog in **the** hog.(1)
 NL\`") --"\`1o **bold**\`"--> c
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
       it('Wrapping long text with a new line', () => {
@@ -749,7 +749,7 @@ Word!
 Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. \`) --> c
 
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
       it('Sub graphs and markdown strings', () => {
@@ -766,7 +766,7 @@ subgraph "\`**Two**\`"
 end
 
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
     });
@@ -782,7 +782,7 @@ flowchart-elk LR
     style id2 fill:#bbf,stroke:#f66,stroke-width:2px,color:#fff,stroke-dasharray: 5 5
     classDef someclass fill:#f96
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
       it('With formatting in a node', () => {
@@ -798,7 +798,7 @@ flowchart-elk LR
   b --> d(The dog in the hog)
   c --> d
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
       it('New line in node and formatted edge label', () => {
@@ -808,7 +808,7 @@ flowchart-elk LR
 b("\`The dog in **the** hog.(1)
 NL\`") --"\`1o **bold**\`"--> c
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
       it('Wrapping long text with a new line', () => {
@@ -821,7 +821,7 @@ Word!
 Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. \`") --> c
 
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
       it('Sub graphs and markdown strings', () => {
@@ -838,7 +838,7 @@ subgraph "\`**Two**\`"
 end
 
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
     });

cypress/integration/rendering/flowchart-v2.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest, renderGraph } from '../../helpers/util.js';
+import { imgSnapshotTest, renderGraph } from '../../helpers/util.ts';
 
 describe('Flowchart v2', () => {
   it('1: should render a simple flowchart', () => {
@@ -449,7 +449,7 @@ flowchart TD
       { htmlLabels: true, flowchart: { htmlLabels: true }, securityLevel: 'loose' }
     );
   });
-  it('65: text-color from classes', () => {
+  it('65-1: text-color from classes', () => {
     imgSnapshotTest(
       `
       flowchart LR
@@ -460,6 +460,31 @@ flowchart TD
       { htmlLabels: true, flowchart: { htmlLabels: true }, securityLevel: 'loose' }
     );
   });
+  it('65-2: bold text from classes', () => {
+    imgSnapshotTest(
+      `
+      flowchart
+        classDef cat fill:#f9d5e5, stroke:#233d4d,stroke-width:2px, font-weight:bold;
+        CS(A long bold text to be viewed):::cat
+      `,
+      { htmlLabels: true, flowchart: { htmlLabels: true }, securityLevel: 'loose' }
+    );
+  });
+  it('65-3: bigger font from classes', () => {
+    imgSnapshotTest(
+      `
+flowchart
+  Node1:::class1 --> Node2:::class2
+  Node1:::class1 --> Node3:::class2
+  Node3 --> Node4((I am a circle)):::larger
+
+  classDef class1 fill:lightblue
+  classDef class2 fill:pink
+  classDef larger font-size:30px,fill:yellow
+      `,
+      { htmlLabels: true, flowchart: { htmlLabels: true }, securityLevel: 'loose' }
+    );
+  });
   it('66: More nested subgraph cases (TB)', () => {
     imgSnapshotTest(
       `
@@ -671,7 +696,7 @@ title: Simple flowchart
 flowchart TD
 A --> B
 `,
-      { titleTopMargin: 0 }
+      { flowchart: { titleTopMargin: 10 } }
     );
   });
   it('3192: It should be possieble to render flowcharts with invisible edges', () => {
@@ -682,7 +707,7 @@ title: Simple flowchart with invisible edges
 flowchart TD
 A ~~~ B
 `,
-      { titleTopMargin: 0 }
+      { flowchart: { titleTopMargin: 10 } }
     );
   });
   it('4023: Should render html labels with images and-or text correctly', () => {
@@ -695,6 +720,15 @@ A ~~~ B
       {}
     );
   });
+
+  it('4439: Should render the graph even if some images are missing', () => {
+    imgSnapshotTest(
+      `flowchart TD
+    B[<img>]
+    B-->C[<img>]`,
+      {}
+    );
+  });
   describe('Markdown strings flowchart (#4220)', () => {
     describe('html labels', () => {
       it('With styling and classes', () => {
@@ -707,7 +741,7 @@ flowchart LR
     style id2 fill:#bbf,stroke:#f66,stroke-width:2px,color:#fff,stroke-dasharray: 5 5
     classDef someclass fill:#f96
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
       it('With formatting in a node', () => {
@@ -723,7 +757,7 @@ flowchart LR
   b --> d(The dog in the hog)
   c --> d
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
       it('New line in node and formatted edge label', () => {
@@ -733,7 +767,7 @@ flowchart LR
 b("\`The dog in **the** hog.(1)
 NL\`") --"\`1o **bold**\`"--> c
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
       it('Wrapping long text with a new line', () => {
@@ -746,7 +780,7 @@ Word!
 Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. \`") --> c
 
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
       it('Sub graphs and markdown strings', () => {
@@ -763,7 +797,7 @@ subgraph "\`**Two**\`"
 end
 
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
     });
@@ -779,7 +813,7 @@ flowchart LR
     style id2 fill:#bbf,stroke:#f66,stroke-width:2px,color:#fff,stroke-dasharray: 5 5
     classDef someclass fill:#f96
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
       it('With formatting in a node', () => {
@@ -795,7 +829,7 @@ flowchart LR
   b --> d(The dog in the hog)
   c --> d
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
       it('New line in node and formatted edge label', () => {
@@ -805,7 +839,7 @@ flowchart LR
 b("\`The dog in **the** hog.(1)
 NL\`") --"\`1o **bold**\`"--> c
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
       it('Wrapping long text with a new line', () => {
@@ -818,7 +852,7 @@ Word!
 Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. \`") --> c
 
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
       it('Sub graphs and markdown strings', () => {
@@ -835,7 +869,7 @@ subgraph "\`**Two**\`"
 end
 
 `,
-          { titleTopMargin: 0 }
+          { flowchart: { titleTopMargin: 0 } }
         );
       });
     });

cypress/integration/rendering/flowchart.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest, renderGraph } from '../../helpers/util.js';
+import { imgSnapshotTest, renderGraph } from '../../helpers/util.ts';
 
 describe('Graph', () => {
   it('1: should render a simple flowchart no htmlLabels', () => {
@@ -891,4 +891,27 @@ graph TD
       { htmlLabels: true, flowchart: { htmlLabels: true }, securityLevel: 'loose' }
     );
   });
+  it('66: apply class called default on node called default', () => {
+    imgSnapshotTest(
+      `
+      graph TD
+        classDef default fill:#a34,stroke:#000,stroke-width:4px,color:#fff 
+        hello --> default
+      `,
+      { htmlLabels: true, flowchart: { htmlLabels: true }, securityLevel: 'loose' }
+    );
+  });
+
+  it('67: should be able to style default node independently', () => {
+    imgSnapshotTest(
+      `
+    flowchart TD
+      classDef default fill:#a34
+      hello --> default
+
+      style default stroke:#000,stroke-width:4px
+    `,
+      { htmlLabels: true, flowchart: { htmlLabels: true }, securityLevel: 'loose' }
+    );
+  });
 });

cypress/integration/rendering/gantt.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest, renderGraph } from '../../helpers/util.js';
+import { imgSnapshotTest, renderGraph } from '../../helpers/util.ts';
 
 describe('Gantt diagram', () => {
   beforeEach(() => {
@@ -414,6 +414,28 @@ describe('Gantt diagram', () => {
     );
   });
 
+  it('should render a gantt diagram with tick is 1 week, with the day starting on monday', () => {
+    imgSnapshotTest(
+      `
+      gantt
+        title A Gantt Diagram
+        dateFormat   YYYY-MM-DD
+        axisFormat   %m-%d
+        tickInterval 1week
+        weekday      monday
+        excludes     weekends
+
+        section Section
+        A task           : a1, 2022-10-01, 30d
+        Another task     : after a1, 20d
+        section Another
+        Task in sec      : 2022-10-20, 12d
+        another task     : 24d
+      `,
+      {}
+    );
+  });
+
   it('should render a gantt diagram with tick is 1 month', () => {
     imgSnapshotTest(
       `

cypress/integration/rendering/gitGraph.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest } from '../../helpers/util.js';
+import { imgSnapshotTest } from '../../helpers/util.ts';
 
 describe('Git Graph diagram', () => {
   it('1: should render a simple gitgraph with commit on main branch', () => {
@@ -333,4 +333,372 @@ gitGraph
       {}
     );
   });
+  it('15: should render a simple gitgraph with commit on main branch | Vertical Branch', () => {
+    imgSnapshotTest(
+      `gitGraph TB:
+       commit id: "1"
+       commit id: "2"
+       commit id: "3"
+      `,
+      {}
+    );
+  });
+  it('16: should render a simple gitgraph with commit on main branch with Id | Vertical Branch', () => {
+    imgSnapshotTest(
+      `gitGraph TB:
+       commit id: "One"
+       commit id: "Two"
+       commit id: "Three"
+      `,
+      {}
+    );
+  });
+  it('17: should render a simple gitgraph with different commitTypes on main branch | Vertical Branch', () => {
+    imgSnapshotTest(
+      `gitGraph TB:
+       commit id: "Normal Commit"
+       commit id: "Reverse Commit" type: REVERSE
+       commit id: "Hightlight Commit" type: HIGHLIGHT
+      `,
+      {}
+    );
+  });
+  it('18: should render a simple gitgraph with tags commitTypes on main branch | Vertical Branch', () => {
+    imgSnapshotTest(
+      `gitGraph TB:
+       commit id: "Normal Commit with tag" tag: "v1.0.0"
+       commit id: "Reverse Commit with tag" type: REVERSE tag: "RC_1"
+       commit id: "Hightlight Commit" type: HIGHLIGHT  tag: "8.8.4"
+      `,
+      {}
+    );
+  });
+  it('19: should render a simple gitgraph with two branches | Vertical Branch', () => {
+    imgSnapshotTest(
+      `gitGraph TB:
+       commit id: "1"
+       commit id: "2"
+       branch develop
+       checkout develop
+       commit id: "3"
+       commit id: "4"
+       checkout main
+       commit id: "5"
+       commit id: "6"
+      `,
+      {}
+    );
+  });
+  it('20: should render a simple gitgraph with two branches and merge commit | Vertical Branch', () => {
+    imgSnapshotTest(
+      `gitGraph TB:
+       commit id: "1"
+       commit id: "2"
+       branch develop
+       checkout develop
+       commit id: "3"
+       commit id: "4"
+       checkout main
+       merge develop
+       commit id: "5"
+       commit id: "6"
+      `,
+      {}
+    );
+  });
+  it('21: should render a simple gitgraph with three branches and tagged merge commit | Vertical Branch', () => {
+    imgSnapshotTest(
+      `gitGraph TB:
+       commit id: "1"
+       commit id: "2"
+       branch nice_feature
+       checkout nice_feature
+       commit id: "3"
+       checkout main
+       commit id: "4"
+       checkout nice_feature
+       branch very_nice_feature
+       checkout very_nice_feature
+       commit id: "5"
+       checkout main
+       commit id: "6"
+       checkout nice_feature
+       commit id: "7"
+       checkout main
+       merge nice_feature id: "12345" tag: "my merge commit"
+       checkout very_nice_feature
+       commit id: "8"
+       checkout main
+       commit id: "9"
+      `,
+      {}
+    );
+  });
+  it('22: should render a simple gitgraph with more than 8 branchs &  overriding variables | Vertical Branch', () => {
+    imgSnapshotTest(
+      `%%{init: { 'logLevel': 'debug', 'theme': 'default' , 'themeVariables': {
+        'gitBranchLabel0': '#ffffff',
+        'gitBranchLabel1': '#ffffff',
+        'gitBranchLabel2': '#ffffff',
+        'gitBranchLabel3': '#ffffff',
+        'gitBranchLabel4': '#ffffff',
+        'gitBranchLabel5': '#ffffff',
+        'gitBranchLabel6': '#ffffff',
+        'gitBranchLabel7': '#ffffff',
+  } } }%%
+  gitGraph TB:
+    checkout main
+    branch branch1
+    branch branch2
+    branch branch3
+    branch branch4
+    branch branch5
+    branch branch6
+    branch branch7
+    branch branch8
+    branch branch9
+    checkout branch1
+    commit id: "1"
+      `,
+      {}
+    );
+  });
+  it('23: should render a simple gitgraph with rotated labels | Vertical Branch', () => {
+    imgSnapshotTest(
+      `%%{init: { 'logLevel': 'debug', 'theme': 'default' , 'gitGraph': {
+        'rotateCommitLabel': true
+  } } }%%
+        gitGraph TB:
+        commit id: "75f7219e83b321cd3fdde7dcf83bc7c1000a6828"
+        commit id: "0db4784daf82736dec4569e0dc92980d328c1f2e"
+        commit id: "7067e9973f9eaa6cd4a4b723c506d1eab598e83e"
+        commit id: "66972321ad6c199013b5b31f03b3a86fa3f9817d"
+      `,
+      {}
+    );
+  });
+  it('24: should render a simple gitgraph with horizontal labels | Vertical Branch', () => {
+    imgSnapshotTest(
+      `%%{init: { 'logLevel': 'debug', 'theme': 'default' , 'gitGraph': {
+        'rotateCommitLabel': false
+  } } }%%
+        gitGraph TB:
+        commit id: "Alpha"
+        commit id: "Beta"
+        commit id: "Gamma"
+        commit id: "Delta"
+      `,
+      {}
+    );
+  });
+  it('25: should render a simple gitgraph with cherry pick commit | Vertical Branch', () => {
+    imgSnapshotTest(
+      `
+    gitGraph TB:
+       commit id: "ZERO"
+       branch develop
+       commit id:"A"
+       checkout main
+       commit id:"ONE"
+       checkout develop
+       commit id:"B"
+       checkout main
+       commit id:"TWO"
+       cherry-pick id:"A"
+       commit id:"THREE"
+       checkout develop
+       commit id:"C"
+      `,
+      {}
+    );
+  });
+  it('26: should render a gitgraph with cherry pick commit with custom tag | Vertical Branch', () => {
+    imgSnapshotTest(
+      `
+    gitGraph TB:
+       commit id: "ZERO"
+       branch develop
+       commit id:"A"
+       checkout main
+       commit id:"ONE"
+       checkout develop
+       commit id:"B"
+       checkout main
+       commit id:"TWO"
+       cherry-pick id:"A" tag: "snapshot"
+       commit id:"THREE"
+       checkout develop
+       commit id:"C"
+      `,
+      {}
+    );
+  });
+  it('27: should render a gitgraph with cherry pick commit with no tag | Vertical Branch', () => {
+    imgSnapshotTest(
+      `
+    gitGraph TB:
+       commit id: "ZERO"
+       branch develop
+       commit id:"A"
+       checkout main
+       commit id:"ONE"
+       checkout develop
+       commit id:"B"
+       checkout main
+       commit id:"TWO"
+       cherry-pick id:"A" tag: ""
+       commit id:"THREE"
+       checkout develop
+       commit id:"C"
+      `,
+      {}
+    );
+  });
+  it('28: should render a simple gitgraph with two cherry pick commit | Vertical Branch', () => {
+    imgSnapshotTest(
+      `
+    gitGraph TB:
+       commit id: "ZERO"
+       branch develop
+       commit id:"A"
+       checkout main
+       commit id:"ONE"
+       checkout develop
+       commit id:"B"
+       branch featureA
+       commit id:"FIX"
+       commit id: "FIX-2"
+       checkout main
+       commit id:"TWO"
+       cherry-pick id:"A"
+       commit id:"THREE"
+       cherry-pick id:"FIX"
+       checkout develop
+       commit id:"C"
+       merge featureA
+      `,
+      {}
+    );
+  });
+  it('29: should render commits for more than 8 branches | Vertical Branch', () => {
+    imgSnapshotTest(
+      `
+      gitGraph TB:
+      checkout main
+      %% Make sure to manually set the ID of all commits, for consistent visual tests
+      commit id: "1-abcdefg"
+      checkout main
+      branch branch1
+      commit id: "2-abcdefg"
+      checkout main
+      merge branch1
+      branch branch2
+      commit id: "3-abcdefg"
+      checkout main
+      merge branch2
+      branch branch3
+      commit id: "4-abcdefg"
+      checkout main
+      merge branch3
+      branch branch4
+      commit id: "5-abcdefg"
+      checkout main
+      merge branch4
+      branch branch5
+      commit id: "6-abcdefg"
+      checkout main
+      merge branch5
+      branch branch6
+      commit id: "7-abcdefg"
+      checkout main
+      merge branch6
+      branch branch7
+      commit id: "8-abcdefg"
+      checkout main
+      merge branch7
+      branch branch8
+      commit id: "9-abcdefg"
+      checkout main
+      merge branch8
+      branch branch9
+      commit id: "10-abcdefg"
+      `,
+      {}
+    );
+  });
+  it('30: should render a simple gitgraph with three branches,custom merge commit id,tag,type | Vertical Branch', () => {
+    imgSnapshotTest(
+      `gitGraph TB:
+       commit id: "1"
+       commit id: "2"
+       branch nice_feature
+       checkout nice_feature
+       commit id: "3"
+       checkout main
+       commit id: "4"
+       checkout nice_feature
+       branch very_nice_feature
+       checkout very_nice_feature
+       commit id: "5"
+       checkout main
+       commit id: "6"
+       checkout nice_feature
+       commit id: "7"
+       checkout main
+       merge nice_feature id: "customID" tag: "customTag" type: REVERSE
+       checkout very_nice_feature
+       commit id: "8"
+       checkout main
+       commit id: "9"
+      `,
+      {}
+    );
+  });
+  it('31: should render a simple gitgraph with a title | Vertical Branch', () => {
+    imgSnapshotTest(
+      `---
+title: simple gitGraph
+---
+gitGraph TB:
+  commit id: "1-abcdefg"
+`,
+      {}
+    );
+  });
+  it('32: should render a simple gitgraph overlapping commits | Vertical Branch', () => {
+    imgSnapshotTest(
+      `gitGraph TB:
+       commit id:"s1"
+       commit id:"s2"
+       branch branch1
+       commit id:"s3"
+       commit id:"s4"
+       checkout main
+       commit id:"s5"
+       checkout branch1
+       commit id:"s6"
+       commit id:"s7"
+       merge main
+      `,
+      {}
+    );
+  });
+  it('33: should render a simple gitgraph overlapping commits', () => {
+    imgSnapshotTest(
+      `gitGraph
+       commit id:"s1"
+       commit id:"s2"
+       branch branch1
+       commit id:"s3"
+       commit id:"s4"
+       checkout main
+       commit id:"s5"
+       checkout branch1
+       commit id:"s6"
+       commit id:"s7"
+       merge main
+      `,
+      {}
+    );
+  });
 });

cypress/integration/rendering/info.spec.ts

@@ -1,4 +1,4 @@
-import { imgSnapshotTest } from '../../helpers/util.js';
+import { imgSnapshotTest } from '../../helpers/util.ts';
 
 describe('info diagram', () => {
   it('should handle an info definition', () => {

cypress/integration/rendering/journey.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest, renderGraph } from '../../helpers/util.js';
+import { imgSnapshotTest, renderGraph } from '../../helpers/util.ts';
 
 describe('User journey diagram', () => {
   it('Simple test', () => {

cypress/integration/rendering/mindmap.spec.ts

@@ -1,4 +1,4 @@
-import { imgSnapshotTest } from '../../helpers/util.js';
+import { imgSnapshotTest } from '../../helpers/util.ts';
 
 /**
  * Check whether the SVG Element has a Mindmap root
@@ -242,8 +242,7 @@ mindmap
     a second line 😎\`]
       id2[\`The dog in **the** hog... a *very long text* about it
 Word!\`]
-`,
-        { titleTopMargin: 0 }
+`
       );
     });
   });

cypress/integration/rendering/pie.spec.ts

@@ -1,89 +1,85 @@
-import { imgSnapshotTest, renderGraph } from '../../helpers/util.js';
+import { imgSnapshotTest, renderGraph } from '../../helpers/util.ts';
 
-describe('Pie Chart', () => {
+describe('pie chart', () => {
   it('should render a simple pie diagram', () => {
     imgSnapshotTest(
+      `pie title Sports in Sweden
+        "Bandy": 40
+        "Ice-Hockey": 80
+        "Football": 90
       `
-    pie title Sports in Sweden
-       "Bandy" : 40
-       "Ice-Hockey" : 80
-       "Football" : 90
-      `,
-      {}
     );
-    cy.get('svg');
   });
+
   it('should render a simple pie diagram with long labels', () => {
     imgSnapshotTest(
+      `pie title NETFLIX
+        "Time spent looking for movie": 90
+        "Time spent watching it": 10
       `
-      pie title NETFLIX
-         "Time spent looking for movie" : 90
-         "Time spent watching it" : 10
-        `,
-      {}
     );
-    cy.get('svg');
   });
+
   it('should render a simple pie diagram with capital letters for labels', () => {
     imgSnapshotTest(
+      `pie title What Voldemort doesn't have?
+        "FRIENDS": 2
+        "FAMILY": 3
+        "NOSE": 45
       `
-      pie title What Voldemort doesn't have?
-         "FRIENDS" : 2
-         "FAMILY" : 3
-         "NOSE" : 45
-        `,
-      {}
     );
-    cy.get('svg');
   });
+
   it('should render a pie diagram when useMaxWidth is true (default)', () => {
     renderGraph(
-      `
-    pie title Sports in Sweden
-       "Bandy" : 40
-       "Ice-Hockey" : 80
-       "Football" : 90
+      `pie title Sports in Sweden
+        "Bandy": 40
+        "Ice-Hockey": 80
+        "Football": 90
       `,
       { pie: { useMaxWidth: true } }
     );
     cy.get('svg').should((svg) => {
       expect(svg).to.have.attr('width', '100%');
-      // expect(svg).to.have.attr('height');
-      // const height = parseFloat(svg.attr('height'));
-      // expect(height).to.eq(450);
       const style = svg.attr('style');
       expect(style).to.match(/^max-width: [\d.]+px;$/);
       const maxWidthValue = parseFloat(style.match(/[\d.]+/g).join(''));
       expect(maxWidthValue).to.eq(984);
     });
   });
+
   it('should render a pie diagram when useMaxWidth is false', () => {
     renderGraph(
-      `
-    pie title Sports in Sweden
-       "Bandy" : 40
-       "Ice-Hockey" : 80
-       "Football" : 90
+      `pie title Sports in Sweden
+        "Bandy": 40
+        "Ice-Hockey": 80
+        "Football": 90
       `,
       { pie: { useMaxWidth: false } }
     );
     cy.get('svg').should((svg) => {
-      // const height = parseFloat(svg.attr('height'));
       const width = parseFloat(svg.attr('width'));
-      // expect(height).to.eq(450);
       expect(width).to.eq(984);
       expect(svg).to.not.have.attr('style');
     });
   });
-  it('should render a pie diagram when textPosition is set', () => {
+
+  it('should render a pie diagram when textPosition is setted', () => {
     imgSnapshotTest(
-      `
-        pie
-          "Dogs": 50
-          "Cats": 25
-        `,
+      `pie
+        "Dogs": 50
+        "Cats": 25
+      `,
       { logLevel: 1, pie: { textPosition: 0.9 } }
     );
-    cy.get('svg');
+  });
+
+  it('should render a pie diagram with showData', () => {
+    imgSnapshotTest(
+      `pie showData
+        "Dogs": 50
+        "Cats": 25
+      `
+    );
   });
 });

cypress/integration/rendering/quadrantChart.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest, renderGraph } from '../../helpers/util.js';
+import { imgSnapshotTest, renderGraph } from '../../helpers/util.ts';
 
 describe('Quadrant Chart', () => {
   it('should render if only chart type is provided', () => {

cypress/integration/rendering/requirement.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest, renderGraph } from '../../helpers/util.js';
+import { imgSnapshotTest, renderGraph } from '../../helpers/util.ts';
 
 describe('Requirement diagram', () => {
   it('sample', () => {

cypress/integration/rendering/sankey.spec.ts

@@ -0,0 +1,144 @@
+import { imgSnapshotTest, renderGraph } from '../../helpers/util.ts';
+
+describe('Sankey Diagram', () => {
+  it('should render a simple example', () => {
+    imgSnapshotTest(
+      `
+      sankey-beta
+      
+      sourceNode,targetNode,10
+      `,
+      {}
+    );
+  });
+
+  describe('when given a linkColor', function () {
+    this.beforeAll(() => {
+      cy.wrap(
+        `sankey-beta
+      a,b,10
+      `
+      ).as('graph');
+    });
+
+    it('links should use hex color', function () {
+      renderGraph(this.graph, { sankey: { linkColor: '#636465' } });
+
+      cy.get('.link path').should((link) => {
+        expect(link.attr('stroke')).to.equal('#636465');
+      });
+    });
+
+    it('links should be the same color as source node', function () {
+      renderGraph(this.graph, { sankey: { linkColor: 'source' } });
+
+      cy.get('.link path').then((link) => {
+        cy.get('.node[id="node-1"] rect').should((node) =>
+          expect(link.attr('stroke')).to.equal(node.attr('fill'))
+        );
+      });
+    });
+
+    it('links should be the same color as target node', function () {
+      renderGraph(this.graph, { sankey: { linkColor: 'target' } });
+
+      cy.get('.link path').then((link) => {
+        cy.get('.node[id="node-2"] rect').should((node) =>
+          expect(link.attr('stroke')).to.equal(node.attr('fill'))
+        );
+      });
+    });
+
+    it('links must be gradient', function () {
+      renderGraph(this.graph, { sankey: { linkColor: 'gradient' } });
+
+      cy.get('.link path').should((link) => {
+        expect(link.attr('stroke')).to.equal('url(#linearGradient-3)');
+      });
+    });
+  });
+
+  describe('when given a nodeAlignment', function () {
+    this.beforeAll(() => {
+      cy.wrap(
+        `
+        sankey-beta
+        
+        a,b,8
+        b,c,8
+        c,d,8
+        d,e,8
+        
+        x,c,4
+        c,y,4  
+        `
+      ).as('graph');
+    });
+
+    this.afterEach(() => {
+      cy.get('.node[id="node-1"]').should((node) => {
+        expect(node.attr('x')).to.equal('0');
+      });
+      cy.get('.node[id="node-2"]').should((node) => {
+        expect(node.attr('x')).to.equal('100');
+      });
+      cy.get('.node[id="node-3"]').should((node) => {
+        expect(node.attr('x')).to.equal('200');
+      });
+      cy.get('.node[id="node-4"]').should((node) => {
+        expect(node.attr('x')).to.equal('300');
+      });
+      cy.get('.node[id="node-5"]').should((node) => {
+        expect(node.attr('x')).to.equal('400');
+      });
+    });
+
+    it('should justify nodes', function () {
+      renderGraph(this.graph, {
+        sankey: { nodeAlignment: 'justify', width: 410, useMaxWidth: false },
+      });
+      cy.get('.node[id="node-6"]').should((node) => {
+        expect(node.attr('x')).to.equal('0');
+      });
+      cy.get('.node[id="node-7"]').should((node) => {
+        expect(node.attr('x')).to.equal('400');
+      });
+    });
+
+    it('should align nodes left', function () {
+      renderGraph(this.graph, {
+        sankey: { nodeAlignment: 'left', width: 410, useMaxWidth: false },
+      });
+      cy.get('.node[id="node-6"]').should((node) => {
+        expect(node.attr('x')).to.equal('0');
+      });
+      cy.get('.node[id="node-7"]').should((node) => {
+        expect(node.attr('x')).to.equal('300');
+      });
+    });
+
+    it('should align nodes right', function () {
+      renderGraph(this.graph, {
+        sankey: { nodeAlignment: 'right', width: 410, useMaxWidth: false },
+      });
+      cy.get('.node[id="node-6"]').should((node) => {
+        expect(node.attr('x')).to.equal('100');
+      });
+      cy.get('.node[id="node-7"]').should((node) => {
+        expect(node.attr('x')).to.equal('400');
+      });
+    });
+
+    it('should center nodes', function () {
+      renderGraph(this.graph, {
+        sankey: { nodeAlignment: 'center', width: 410, useMaxWidth: false },
+      });
+      cy.get('.node[id="node-6"]').should((node) => {
+        expect(node.attr('x')).to.equal('100');
+      });
+      cy.get('.node[id="node-7"]').should((node) => {
+        expect(node.attr('x')).to.equal('300');
+      });
+    });
+  });
+});

cypress/integration/rendering/sequencediagram.spec.js

@@ -1,6 +1,6 @@
 /// <reference types="Cypress" />
 
-import { imgSnapshotTest, renderGraph } from '../../helpers/util.js';
+import { imgSnapshotTest, renderGraph } from '../../helpers/util.ts';
 
 context('Sequence diagram', () => {
   it('should render a sequence diagram with boxes', () => {
@@ -156,6 +156,81 @@ context('Sequence diagram', () => {
       `
     );
   });
+  it('should render a sequence diagram with basic actor creation and destruction', () => {
+    imgSnapshotTest(
+      `
+      sequenceDiagram
+      Alice ->> Bob: Hello Bob, how are you ?
+      Bob ->> Alice: Fine, thank you. And you?
+      create participant Polo
+      Alice ->> Polo: Hi Polo!
+      create actor Ola1 as Ola
+      Polo ->> Ola1: Hiii
+      Ola1 ->> Alice: Hi too
+      destroy Ola1
+      Alice --x Ola1: Bye!
+      Alice ->> Bob: And now?
+      create participant Ola2 as Ola
+      Alice ->> Ola2: Hello again
+      destroy Alice
+      Alice --x Ola2: Bye for me!
+      destroy Bob
+      Ola2 --> Bob: The end
+      `
+    );
+  });
+  it('should render a sequence diagram with actor creation and destruction coupled with backgrounds, loops and notes', () => {
+    imgSnapshotTest(
+      `
+      sequenceDiagram
+			accTitle: test the accTitle
+			accDescr: Test a description
+
+			participant Alice
+      participant Bob
+			autonumber 10 10
+			rect rgb(200, 220, 100)
+			rect rgb(200, 255, 200)
+
+			Alice ->> Bob: Hello Bob, how are you?
+      create participant John as John<br />Second Line
+			Bob-->>John: How about you John?
+			end
+
+			Bob--x Alice: I am good thanks!
+			Bob-x John: I am good thanks!
+			Note right of John: John thinks a long<br />long time, so long<br />that the text does<br />not fit on a row.
+
+			Bob-->Alice: Checking with John...
+			Note over John:wrap: John looks like he's still thinking, so Bob prods him a bit.
+			Bob-x John: Hey John - we're still waiting to know<br />how you're doing
+			Note over John:nowrap: John's trying hard not to break his train of thought.
+      destroy John
+			Bob-x John: John! Cmon!
+			Note over John: After a few more moments, John<br />finally snaps out of it.
+			end
+
+			autonumber off
+			alt either this
+      create actor Lola
+			Alice->>+Lola: Yes
+			Lola-->>-Alice: OK
+			else or this
+			autonumber
+			Alice->>Lola: No
+			else or this will happen
+			Alice->Lola: Maybe
+			end
+			autonumber 200
+			par this happens in parallel
+      destroy Bob
+			Alice -->> Bob: Parallel message 1
+			and
+			Alice -->> Lola: Parallel message 2
+			end
+      `
+    );
+  });
   context('font settings', () => {
     it('should render different note fonts when configured', () => {
       imgSnapshotTest(

cypress/integration/rendering/stateDiagram-v2.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest, renderGraph } from '../../helpers/util.js';
+import { imgSnapshotTest, renderGraph } from '../../helpers/util.ts';
 
 describe('State diagram', () => {
   it('v2 should render a simple info', () => {

cypress/integration/rendering/stateDiagram.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest, renderGraph } from '../../helpers/util.js';
+import { imgSnapshotTest, renderGraph } from '../../helpers/util.ts';
 
 describe('State diagram', () => {
   it('should render a simple state diagrams', () => {

cypress/integration/rendering/theme.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest } from '../../helpers/util.js';
+import { imgSnapshotTest } from '../../helpers/util.ts';
 
 describe('themeCSS balancing, it', () => {
   it('should not allow unbalanced CSS definitions', () => {

cypress/integration/rendering/timeline.spec.ts

@@ -1,4 +1,4 @@
-import { imgSnapshotTest } from '../../helpers/util.js';
+import { imgSnapshotTest } from '../../helpers/util.ts';
 
 describe('Timeline diagram', () => {
   it('1: should render a simple timeline with no specific sections', () => {

cypress/integration/rendering/zenuml.spec.js

@@ -1,4 +1,4 @@
-import { imgSnapshotTest } from '../../helpers/util.js';
+import { imgSnapshotTest } from '../../helpers/util.ts';
 
 describe('Zen UML', () => {
   it('Basic Zen UML diagram', () => {

cypress/platform/e2e.html

@@ -1,7 +1,7 @@
 <html>
   <head>
     <meta charset="utf-8" />
-    <script src="./viewer.js" type="module"></script>
+    <script type="module" src="./viewer.js"></script>
     <link
       href="https://fonts.googleapis.com/css?family=Noto+Sans+SC&display=swap"
       rel="stylesheet"

cypress/platform/external-diagrams-example-diagram.html

@@ -11,8 +11,7 @@ example-diagram
     <!-- <script src="//cdn.jsdelivr.net/npm/mermaid@9.1.7/dist/mermaid.min.js"></script> -->
     <!-- <script type="module" src="./external-diagrams-mindmap.mjs" /> -->
     <script type="module">
-      import exampleDiagram from '../../packages/mermaid-example-diagram/dist/mermaid-example-diagram.core.mjs';
-      // import example from '../../packages/mermaid-example-diagram/src/detector';
+      import exampleDiagram from './mermaid-example-diagram.esm.mjs';
       import mermaid from './mermaid.esm.mjs';
 
       await mermaid.registerExternalDiagrams([exampleDiagram]);

cypress/platform/iife.html

@@ -0,0 +1,29 @@
+<html>
+  <body>
+    <pre id="diagram" class="mermaid">
+graph TB
+      a --> b
+      a --> c
+      b --> d
+      c --> d
+    </pre>
+
+    <div id="d2"></div>
+
+    <script src="/mermaid.min.js"></script>
+    <script>
+      mermaid.initialize({
+        startOnLoad: true,
+      });
+      const value = `graph TD\nHello --> World`;
+      const el = document.getElementById('d2');
+      mermaid.render('did', value).then(({ svg }) => {
+        console.log(svg);
+        el.innerHTML = svg;
+        if (window.Cypress) {
+          window.rendered = true;
+        }
+      });
+    </script>
+  </body>
+</html>

cypress/platform/interaction.html

@@ -17,20 +17,20 @@
     graph TB
       Function-->URL
       click Function clickByFlow "Add a div"
-      click URL "http://localhost:9000/webpackUsage.html" "Visit <strong>mermaid docs</strong>"
+      click URL "http://localhost:9000/info.html" "Visit <strong>mermaid docs</strong>"
       </pre>
       <pre id="FirstLine" class="mermaid2">
   graph TB
     1Function-->2URL
     click 1Function clickByFlow "Add a div"
-    click 2URL "http://localhost:9000/webpackUsage.html" "Visit <strong>mermaid docs</strong>"
+    click 2URL "http://localhost:9000/info.html" "Visit <strong>mermaid docs</strong>"
       </pre>
 
       <pre id="FirstLine" class="mermaid2">
   classDiagram
     class Test
     class ShapeLink
-    link ShapeLink "http://localhost:9000/webpackUsage.html" "This is a tooltip for a link"
+    link ShapeLink "http://localhost:9000/info.html" "This is a tooltip for a link"
     class ShapeCallback
     callback ShapeCallback "clickByClass" "This is a tooltip for a callback"
       </pre>
@@ -42,7 +42,7 @@
       <pre id="FirstLine" class="mermaid">
   classDiagram-v2
     class ShapeLink
-    link ShapeLink "http://localhost:9000/webpackUsage.html" "This is a tooltip for a link"
+    link ShapeLink "http://localhost:9000/info.html" "This is a tooltip for a link"
       </pre>
     </div>
 
@@ -77,7 +77,7 @@
     Calling a Callback (look at the console log) :cl2, after cl1, 3d
     Calling a Callback with args :cl3, after cl1, 3d
 
-    click cl1 href "http://localhost:9000/webpackUsage.html"
+    click cl1 href "http://localhost:9000/info.html"
     click cl2 call clickByGantt()
     click cl3 call clickByGantt("test1", test2, test3)
 
@@ -102,9 +102,15 @@
         div.className = 'created-by-gant-click';
         div.style = 'padding: 20px; background: green; color: white;';
         div.innerText = 'Clicked By Gant';
-        if (arg1) div.innerText += ' ' + arg1;
-        if (arg2) div.innerText += ' ' + arg2;
-        if (arg3) div.innerText += ' ' + arg3;
+        if (arg1) {
+          div.innerText += ' ' + arg1;
+        }
+        if (arg2) {
+          div.innerText += ' ' + arg2;
+        }
+        if (arg3) {
+          div.innerText += ' ' + arg3;
+        }
 
         document.getElementsByTagName('body')[0].appendChild(div);
       }

cypress/platform/knsv2.html

@@ -58,6 +58,23 @@
   </head>
   <body>
     <pre id="diagram" class="mermaid">
+      flowchart
+        classDef mainCategories fill:#f9d5e5, stroke:#233d4d,stroke-width:2px, font-weight:bold;
+        CS(Customer Awareness Journey):::mainCategories
+      </pre
+    >
+    <pre id="diagram" class="mermaid">
+flowchart
+Node1:::class1 --> Node2:::class2
+Node1:::class1 --> Node3:::class2
+Node3 --> Node4((I am a circle)):::larger
+
+classDef class1 fill:lightblue
+classDef class2 fill:pink
+classDef larger font-size:30px,fill:yellow
+      </pre
+    >
+    <pre id="diagram" class="mermaid2">
 stateDiagram-v2
     [*] --> Still
     Still --> [*]
@@ -73,7 +90,7 @@ flowchart RL
       a1 -- l2 --> a2
     end
     </pre>
-    <pre id="diagram" class="mermaid">
+    <pre id="diagram" class="mermaid2">
 flowchart RL
     subgraph "`one`"
       a1 -- l1 --> a2
@@ -98,11 +115,11 @@ flowchart LR
         way`"]
   </pre
     >
-    <pre id="diagram" class="mermaid">
+    <pre id="diagram" class="mermaid2">
       classDiagram-v2
         note "I love this diagram!\nDo you love it?"
     </pre>
-    <pre id="diagram" class="mermaid">
+    <pre id="diagram" class="mermaid2">
     stateDiagram-v2
     State1: The state with a note with minus - and plus + in it
     note left of State1
@@ -147,7 +164,7 @@ mindmap
       शान्तिः سلام  和平 `"]
 
     </pre>
-    <pre id="diagram" class="mermaid">
+    <pre id="diagram" class="mermaid2">
 %%{init: {"flowchart": {"defaultRenderer": "elk"}} }%%
 flowchart TB
   %% I could not figure out how to use double quotes in labels in Mermaid
@@ -399,21 +416,31 @@ mindmap
       mermaid.parseError = function (err, hash) {
         // console.error('Mermaid error: ', err);
       };
+      // mermaid.initialize({
+      //   // theme: 'forest',
+      //   startOnLoad: true,
+      //   logLevel: 0,
+      //   flowchart: {
+      //     // defaultRenderer: 'elk',
+      //     useMaxWidth: false,
+      //     // htmlLabels: false,
+      //     htmlLabels: true,
+      //   },
+      //   // htmlLabels: false,
+      //   gantt: {
+      //     useMaxWidth: false,
+      //   },
+      //   useMaxWidth: false,
+      // });
       mermaid.initialize({
-        // theme: 'forest',
-        startOnLoad: true,
-        logLevel: 0,
-        flowchart: {
-          // defaultRenderer: 'elk',
-          useMaxWidth: false,
-          // htmlLabels: false,
-          htmlLabels: true,
+        flowchart: { titleTopMargin: 10 },
+        fontFamily: 'courier',
+        sequence: {
+          actorFontFamily: 'courier',
+          noteFontFamily: 'courier',
+          messageFontFamily: 'courier',
         },
-        // htmlLabels: false,
-        gantt: {
-          useMaxWidth: false,
-        },
-        useMaxWidth: false,
+        fontSize: 16,
       });
       function callback() {
         alert('It worked');

cypress/platform/viewer.js

@@ -1,6 +1,6 @@
-import mermaid2 from './mermaid.esm.mjs';
-import externalExample from '../../packages/mermaid-example-diagram/dist/mermaid-example-diagram.core.mjs';
-import zenUml from '../../packages/mermaid-zenuml/dist/mermaid-zenuml.core.mjs';
+import mermaid from './mermaid.esm.mjs';
+import externalExample from './mermaid-example-diagram.esm.mjs';
+import zenUml from './mermaid-zenuml.esm.mjs';
 
 function b64ToUtf8(str) {
   return decodeURIComponent(escape(window.atob(str)));
@@ -45,9 +45,9 @@ const contentLoaded = async function () {
       document.getElementsByTagName('body')[0].appendChild(div);
     }
 
-    await mermaid2.registerExternalDiagrams([externalExample, zenUml]);
-    mermaid2.initialize(graphObj.mermaid);
-    await mermaid2.run();
+    await mermaid.registerExternalDiagrams([externalExample, zenUml]);
+    mermaid.initialize(graphObj.mermaid);
+    await mermaid.run();
   }
 };
 
@@ -95,18 +95,14 @@ const contentLoadedApi = async function () {
         divs[i] = div;
       }
 
-      const defaultE2eCnf = { theme: 'forest' };
+      const defaultE2eCnf = { theme: 'forest', startOnLoad: false };
 
       const cnf = merge(defaultE2eCnf, graphObj.mermaid);
 
-      mermaid2.initialize(cnf);
+      mermaid.initialize(cnf);
 
       for (let i = 0; i < numCodes; i++) {
-        const { svg, bindFunctions } = await mermaid2.render(
-          'newid' + i,
-          graphObj.code[i],
-          divs[i]
-        );
+        const { svg, bindFunctions } = await mermaid.render('newid' + i, graphObj.code[i], divs[i]);
         div.innerHTML = svg;
         bindFunctions(div);
       }
@@ -114,18 +110,21 @@ const contentLoadedApi = async function () {
       const div = document.createElement('div');
       div.id = 'block';
       div.className = 'mermaid';
-      console.warn('graphObj.mermaid', graphObj.mermaid);
+      console.warn('graphObj', graphObj);
       document.getElementsByTagName('body')[0].appendChild(div);
-      mermaid2.initialize(graphObj.mermaid);
-
-      const { svg, bindFunctions } = await mermaid2.render('newid', graphObj.code, div);
+      mermaid.initialize(graphObj.mermaid);
+      const { svg, bindFunctions } = await mermaid.render('newid', graphObj.code, div);
       div.innerHTML = svg;
+      console.log(div.innerHTML);
       bindFunctions(div);
     }
   }
 };
 
 if (typeof document !== 'undefined') {
+  mermaid.initialize({
+    startOnLoad: false,
+  });
   /*!
    * Wait for document loaded before starting the execution
    */

cypress/platform/webpackUsage.html

@@ -1,19 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <style>
-      /* .mermaid {
-    font-family: "trebuchet ms", verdana, arial;;
-  } */
-      /* .mermaid {
-    font-family: 'arial';
-  } */
-    </style>
-  </head>
-  <body>
-    <div id="graph-to-be"></div>
-    <script type="module" charset="utf-8">
-      import './bundle-test.js';
-    </script>
-  </body>
-</html>

cypress/platform/xss.html

@@ -1,6 +1,5 @@
 <html>
   <head>
-    <script src="./viewer.js" type="module"></script>
     <link href="https://fonts.googleapis.com/css?family=Montserrat&display=swap" rel="stylesheet" />
     <style>
       .malware {
@@ -33,12 +32,6 @@
     </script>
   </head>
   <body>
-    <script type="module">
-      import mermaid from './mermaid.esm.mjs';
-      mermaid.initialize({
-        startOnLoad: false,
-        useMaxWidth: true,
-      });
-    </script>
+    <script type="module" src="./viewer.js"></script>
   </body>
 </html>

cypress/tsconfig.json

@@ -2,7 +2,9 @@
   "compilerOptions": {
     "target": "es2020",
     "lib": ["es2020", "dom"],
-    "types": ["cypress", "node"]
+    "types": ["cypress", "node"],
+    "allowImportingTsExtensions": true,
+    "noEmit": true
   },
   "include": ["**/*.ts"]
 }

demos/dev/example.html

@@ -0,0 +1,38 @@
+<!--Do not edit this file-->
+<!--Duplicate this file to any name you like, run `pnpm dev`, open http://localhost:9000/dev/name.html to view-->
+<html>
+  <head>
+    <title>Mermaid development page</title>
+  </head>
+  <body>
+    <pre class="mermaid">info</pre>
+
+    <pre id="diagram" class="mermaid">
+graph TB
+      a --> b
+      a --> c
+      b --> d
+      c --> d
+    </pre>
+
+    <div id="dynamicDiagram"></div>
+
+    <script type="module">
+      import mermaid from '/mermaid.esm.mjs';
+      mermaid.parseError = function (err, hash) {
+        console.error('Mermaid error: ', err);
+      };
+      mermaid.initialize({
+        startOnLoad: true,
+        logLevel: 0,
+      });
+      const value = `graph TD\nHello --> World`;
+      const el = document.getElementById('dynamicDiagram');
+      const { svg } = await mermaid.render('dd', value);
+      console.log(svg);
+      el.innerHTML = svg;
+    </script>
+
+    <script src="/dev/reload.js"></script>
+  </body>
+</html>

demos/dev/reload.js

@@ -0,0 +1,22 @@
+// Connect to the server and reload the page if the server sends a reload message
+const connectToEvents = () => {
+  const events = new EventSource('/events');
+  const loadTime = Date.now();
+  events.onmessage = (event) => {
+    const time = JSON.parse(event.data);
+    if (time && time > loadTime) {
+      location.reload();
+    }
+  };
+  events.onerror = (error) => {
+    console.error(error);
+    events.close();
+    // Try to reconnect after 1 second in case of errors
+    setTimeout(connectToEvents, 1000);
+  };
+  events.onopen = () => {
+    console.log('Connected to live reload server');
+  };
+};
+
+setTimeout(connectToEvents, 500);

demos/er.html

@@ -21,6 +21,8 @@
     <pre class="mermaid">
       ---
       title: This is a title
+      config:
+        theme: forest
       ---
       erDiagram
         %% title This is a title
@@ -108,6 +110,20 @@
         }
         MANUFACTURER only one to zero or more CAR : makes
     </pre>
+    <hr />
+
+    <pre class="mermaid">
+    erDiagram
+      p[Person] {
+          string firstName
+          string lastName
+      }
+      a["Customer Account"] {
+          string email
+      }
+      p ||--o| a : has
+    </pre>
+    <hr />
 
     <script type="module">
       import mermaid from './mermaid.esm.mjs';

demos/flowchart.html

@@ -123,6 +123,13 @@
 
     <h3>flowchart</h3>
     <pre class="mermaid">
+    ---
+    title: This is another complicated flow
+    config:
+      theme: base
+      flowchart:
+        curve: cardinal
+    ---
     flowchart LR
     sid-B3655226-6C29-4D00-B685-3D5C734DC7E1["
 

demos/index.html

@@ -75,6 +75,9 @@
       <li>
         <h2><a href="./zenuml.html">ZenUML</a></h2>
       </li>
+      <li>
+        <h2><a href="./sankey.html">Sankey</a></h2>
+      </li>
     </ul>
   </body>
 </html>

demos/pie.html

@@ -7,7 +7,6 @@
     <link rel="icon" type="image/png" href="data:image/png;base64,iVBORw0KGgo=" />
     <style>
       div.mermaid {
-        /* font-family: 'trebuchet ms', verdana, arial; */
         font-family: 'Courier New', Courier, monospace !important;
       }
     </style>
@@ -17,37 +16,32 @@
     <h1>Pie chart demos</h1>
     <pre class="mermaid">
       pie title Pets adopted by volunteers
-      accTitle: simple pie char demo
-      accDescr: pie chart with 3 sections: dogs, cats, rats. Most are dogs.
-    "Dogs" : 386
-    "Cats" : 85
-    "Rats" : 15
+        accTitle: simple pie char demo
+        accDescr: pie chart with 3 sections: dogs, cats, rats. Most are dogs.
+        "Dogs": 386
+        "Cats": 85
+        "Rats": 15
     </pre>
 
     <hr />
     <pre class="mermaid">
-    %%{init: {"pie": {"textPosition": 0.9}, "themeVariables": {"pieOuterStrokeWidth": "5px"}} }%%
-    pie
-      title Key elements in Product X
+      %%{init: {"pie": {"textPosition": 0.9}, "themeVariables": {"pieOuterStrokeWidth": "5px"}}}%%
+      pie
+        title Key elements in Product X
         accTitle: Key elements in Product X
-      accDescr: This is a pie chart showing the key elements in Product X.
-      "Calcium" : 42.96
-      "Potassium" : 50.05
-      "Magnesium" : 10.01
-      "Iron" :  5
+        accDescr: This is a pie chart showing the key elements in Product X.
+        "Calcium": 42.96
+        "Potassium": 50.05
+        "Magnesium": 10.01
+        "Iron": 5
     </pre>
 
     <script type="module">
-      import mermaid from './mermaid.esm.mjs';
+      import mermaid from '/mermaid.esm.mjs';
       mermaid.initialize({
         theme: 'forest',
-        // themeCSS: '.node rect { fill: red; }',
         logLevel: 3,
         securityLevel: 'loose',
-        // flowchart: { curve: 'basis' },
-        // gantt: { axisFormat: '%m/%d/%Y' },
-        sequence: { actorMargin: 50 },
-        // sequenceDiagram: { actorMargin: 300 } // deprecated
       });
     </script>
   </body>

demos/sankey.html

@@ -0,0 +1,124 @@
+<!DOCTYPE html>
+<html lang="en" xmlns="http://www.w3.org/1999/html">
+  <head>
+    <meta charset="utf-8" />
+    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
+    <title>Sankey Mermaid Quick Test Page</title>
+    <link rel="icon" type="image/png" href="data:image/png;base64,iVBORw0KGgo=" />
+  </head>
+
+  <body>
+    <h1>Sankey diagram demos</h1>
+    <h2>FY20-21 Performance</h2>
+    <pre class="mermaid">
+      ---
+      config:
+        sankey:
+          showValues: true
+          prefix: $
+          suffix: B
+          width: 800
+          nodeAlignment: left
+      ---
+      sankey-beta
+        Revenue,Expenses,10
+        Revenue,Profit,10
+        Expenses,Manufacturing,5
+        Expenses,Tax,3
+        Expenses,Research,2
+    </pre>
+
+    <h2>Energy flow</h2>
+    <pre class="mermaid">
+      ---
+      config:
+        sankey:
+          showValues: false
+          width: 1200
+          height: 600
+          linkColor: gradient
+          nodeAlignment: justify
+      ---
+      sankey-beta
+
+      Agricultural 'waste',Bio-conversion,124.729
+      Bio-conversion,Liquid,0.597
+      Bio-conversion,Losses,26.862
+      Bio-conversion,Solid,280.322
+      Bio-conversion,Gas,81.144
+      Biofuel imports,Liquid,35
+      Biomass imports,Solid,35
+      Coal imports,Coal,11.606
+      Coal reserves,Coal,63.965
+      Coal,Solid,75.571
+      District heating,Industry,10.639
+      District heating,Heating and cooling - commercial,22.505
+      District heating,Heating and cooling - homes,46.184
+      Electricity grid,Over generation / exports,104.453
+      Electricity grid,Heating and cooling - homes,113.726
+      Electricity grid,H2 conversion,27.14
+      Electricity grid,Industry,342.165
+      Electricity grid,Road transport,37.797
+      Electricity grid,Agriculture,4.412
+      Electricity grid,Heating and cooling - commercial,40.858
+      Electricity grid,Losses,56.691
+      Electricity grid,Rail transport,7.863
+      Electricity grid,Lighting & appliances - commercial,90.008
+      Electricity grid,Lighting & appliances - homes,93.494
+      Gas imports,Ngas,40.719
+      Gas reserves,Ngas,82.233
+      Gas,Heating and cooling - commercial,0.129
+      Gas,Losses,1.401
+      Gas,Thermal generation,151.891
+      Gas,Agriculture,2.096
+      Gas,Industry,48.58
+      Geothermal,Electricity grid,7.013
+      H2 conversion,H2,20.897
+      H2 conversion,Losses,6.242
+      H2,Road transport,20.897
+      Hydro,Electricity grid,6.995
+      Liquid,Industry,121.066
+      Liquid,International shipping,128.69
+      Liquid,Road transport,135.835
+      Liquid,Domestic aviation,14.458
+      Liquid,International aviation,206.267
+      Liquid,Agriculture,3.64
+      Liquid,National navigation,33.218
+      Liquid,Rail transport,4.413
+      Marine algae,Bio-conversion,4.375
+      Ngas,Gas,122.952
+      Nuclear,Thermal generation,839.978
+      Oil imports,Oil,504.287
+      Oil reserves,Oil,107.703
+      Oil,Liquid,611.99
+      Other waste,Solid,56.587
+      Other waste,Bio-conversion,77.81
+      Pumped heat,Heating and cooling - homes,193.026
+      Pumped heat,Heating and cooling - commercial,70.672
+      Solar PV,Electricity grid,59.901
+      Solar Thermal,Heating and cooling - homes,19.263
+      Solar,Solar Thermal,19.263
+      Solar,Solar PV,59.901
+      Solid,Agriculture,0.882
+      Solid,Thermal generation,400.12
+      Solid,Industry,46.477
+      Thermal generation,Electricity grid,525.531
+      Thermal generation,Losses,787.129
+      Thermal generation,District heating,79.329
+      Tidal,Electricity grid,9.452
+      UK land based bioenergy,Bio-conversion,182.01
+      Wave,Electricity grid,19.013
+      Wind,Electricity grid,289.366
+    </pre>
+
+    <script type="module">
+      import mermaid from './mermaid.esm.mjs';
+      mermaid.initialize({
+        theme: 'default',
+        logLevel: 3,
+        securityLevel: 'loose',
+        startOnLoad: true,
+      });
+    </script>
+  </body>
+</html>

docker-compose.yml

@@ -1,9 +1,36 @@
 version: '3.9'
 services:
   mermaid:
-    image: node:20.3.1-alpine3.18
+    image: node:18.17.1-alpine3.18
     stdin_open: true
     tty: true
     working_dir: /mermaid
+    mem_limit: '4G'
+    environment:
+      - NODE_OPTIONS=--max_old_space_size=4096
     volumes:
       - ./:/mermaid
+      - root_cache:/root/.cache
+      - root_local:/root/.local
+      - root_npm:/root/.npm
+    ports:
+      - 9000:9000
+      - 3333:3333
+  cypress:
+    image: cypress/included:12.17.4
+    stdin_open: true
+    tty: true
+    working_dir: /mermaid
+    mem_limit: '2G'
+    entrypoint: cypress
+    environment:
+      - DISPLAY
+    volumes:
+      - ./:/mermaid
+      - /tmp/.X11-unix:/tmp/.X11-unix
+    network_mode: host
+
+volumes:
+  root_cache:
+  root_local:
+  root_npm:

docs/community/code.md

@@ -0,0 +1,176 @@
+> **Warning**
+>
+> ## THIS IS AN AUTOGENERATED FILE. DO NOT EDIT.
+>
+> ## Please edit the corresponding file in [/packages/mermaid/src/docs/community/code.md](../../packages/mermaid/src/docs/community/code.md).
+
+# Contributing Code
+
+The basic steps for contributing code are:
+
+```mermaid-example
+graph LR
+    git[1. Checkout a  git branch] --> codeTest[2. Write tests and code] --> doc[3. Update documentation] --> submit[4. Submit a PR] --> review[5. Review and merge]
+```
+
+```mermaid
+graph LR
+    git[1. Checkout a  git branch] --> codeTest[2. Write tests and code] --> doc[3. Update documentation] --> submit[4. Submit a PR] --> review[5. Review and merge]
+```
+
+1.  **Create** and checkout a git branch and work on your code in the branch
+2.  Write and update **tests** (unit and perhaps even integration (e2e) tests) (If you do TDD/BDD, the order might be different.)
+3.  **Let users know** that things have changed or been added in the documents! This is often overlooked, but _critical_
+4.  **Submit** your code as a _pull request_.
+5.  Maintainers will **review** your code. If there are no changes necessary, the PR will be merged. Otherwise, make the requested changes and repeat.
+
+## 1. Checkout a git branch
+
+Mermaid uses a [Git Flow](https://guides.github.com/introduction/flow/)–inspired approach to branching.
+
+Development is done in the `develop` branch.
+
+Once development is done we create a `release/vX.X.X` branch from `develop` for testing.
+
+Once the release happens we add a tag to the `release` branch and merge it with `master`. The live product and on-line documentation are what is in the `master` branch.
+
+**All new work should be based on the `develop` branch.**
+
+**When you are ready to do work, always, ALWAYS:**
+
+1.  Make sure you have the most up-to-date version of the `develop` branch. (fetch or pull to update it)
+2.  Check out the `develop` branch
+3.  Create a new branch for your work. Please name the branch following our naming convention below.
+
+We use the follow naming convention for branches:
+
+```txt
+   [feature | bug | chore | docs]/[issue number]_[short description using dashes ('-') or underscores ('_') instead of spaces]
+```
+
+You can always check current [configuration of labelling and branch prefixes](https://github.com/mermaid-js/mermaid/blob/develop/.github/pr-labeler.yml)
+
+- The first part is the **type** of change: a feature, bug, chore, or documentation change ('docs')
+- followed by a _slash_ (which helps to group like types together in many git tools)
+- followed by the **issue number**
+- followed by an _underscore_ ('\_')
+- followed by a short text description (but use dashes ('-') or underscores ('\_') instead of spaces)
+
+If your work is specific to a single diagram type, it is a good idea to put the diagram type at the start of the description. This will help us keep release notes organized: it will help us keep changes for a diagram type together.
+
+**Ex: A new feature described in issue 2945 that adds a new arrow type called 'florbs' to state diagrams**
+
+`feature/2945_state-diagram-new-arrow-florbs`
+
+**Ex: A bug described in issue 1123 that causes random ugly red text in multiple diagram types**
+`bug/1123_fix_random_ugly_red_text`
+
+## 2. Write Tests
+
+Tests ensure that each function, module, or part of code does what it says it will do. This is critically
+important when other changes are made to ensure that existing code is not broken (no regression).
+
+Just as important, the tests act as _specifications:_ they specify what the code does (or should do).
+Whenever someone is new to a section of code, they should be able to read the tests to get a thorough understanding of what it does and why.
+
+If you are fixing a bug, you should add tests to ensure that your code has actually fixed the bug, to specify/describe what the code is doing, and to ensure the bug doesn't happen again.
+(If there had been a test for the situation, the bug never would have happened in the first place.)
+You may need to change existing tests if they were inaccurate.
+
+If you are adding a feature, you will definitely need to add tests. Depending on the size of your feature, you may need to add integration tests.
+
+### Unit Tests
+
+Unit tests are tests that test a single function or module. They are the easiest to write and the fastest to run.
+
+Unit tests are mandatory all code except the renderers. (The renderers are tested with integration tests.)
+
+We use [Vitest](https://vitest.dev) to run unit tests.
+
+You can use the following command to run the unit tests:
+
+```sh
+pnpm test
+```
+
+When writing new tests, it's easier to have the tests automatically run as you make changes. You can do this by running the following command:
+
+```sh
+pnpm test:watch
+```
+
+### Integration/End-to-End (e2e) tests
+
+These test the rendering and visual appearance of the diagrams.
+This ensures that the rendering of that feature in the e2e will be reviewed in the release process going forward. Less chance that it breaks!
+
+To start working with the e2e tests:
+
+1.  Run `pnpm dev` to start the dev server
+2.  Start **Cypress** by running `pnpm cypress:open`.
+
+The rendering tests are very straightforward to create. There is a function `imgSnapshotTest`, which takes a diagram in text form and the mermaid options, and it renders that diagram in Cypress.
+
+When running in CI it will take a snapshot of the rendered diagram and compare it with the snapshot from last build and flag it for review if it differs.
+
+This is what a rendering test looks like:
+
+```js
+it('should render forks and joins', () => {
+  imgSnapshotTest(
+    `
+    stateDiagram
+    state fork_state <<fork>>
+      [*] --> fork_state
+      fork_state --> State2
+      fork_state --> State3
+
+      state join_state <<join>>
+      State2 --> join_state
+      State3 --> join_state
+      join_state --> State4
+      State4 --> [*]
+    `,
+    { logLevel: 0 }
+  );
+  cy.get('svg');
+});
+```
+
+**_\[TODO - running the tests against what is expected in development. ]_**
+
+**_\[TODO - how to generate new screenshots]_**
+....
+
+## 3. Update Documentation
+
+If the users have no way to know that things have changed, then you haven't really _fixed_ anything for the users; you've just added to making Mermaid feel broken.
+Likewise, if users don't know that there is a new feature that you've implemented, it will forever remain unknown and unused.
+
+The documentation has to be updated to users know that things have changed and added!
+If you are adding a new feature, add `(v<MERMAID_RELEASE_VERSION>+)` in the title or description. It will be replaced automatically with the current version number when the release happens.
+
+eg: `# Feature Name (v<MERMAID_RELEASE_VERSION>+)`
+
+We know it can sometimes be hard to code _and_ write user documentation.
+
+Our documentation is managed in `packages/mermaid/src/docs`. Details on how to edit is in the [Contributing Documentation](#contributing-documentation) section.
+
+Create another issue specifically for the documentation.\
+You will need to help with the PR, but definitely ask for help if you feel stuck.
+When it feels hard to write stuff out, explaining it to someone and having that person ask you clarifying questions can often be 80% of the work!
+
+When in doubt, write up and submit what you can. It can be clarified and refined later. (With documentation, something is better than nothing!)
+
+## 4. Submit your pull request
+
+**\[TODO - PR titles should start with (fix | feat | ....)]**
+
+We make all changes via Pull Requests (PRs). As we have many Pull Requests from developers new to Mermaid, we have put in place a process wherein _knsv, Knut Sveidqvist_ is in charge of the final release process and the active maintainers are in charge of reviewing and merging most PRs.
+
+- PRs will be reviewed by active maintainers, who will provide feedback and request changes as needed.
+- The maintainers will request a review from knsv, if necessary.
+- Once the PR is approved, the maintainers will merge the PR into the `develop` branch.
+- When a release is ready, the `release/x.x.x` branch will be created, extensively tested and knsv will be in charge of the release process.
+
+**Reminder: Pull Requests should be submitted to the develop branch.**

docs/community/development.md

@@ -6,15 +6,9 @@
 
 # Contributing to Mermaid
 
-## Contents
-
-- [Technical Requirements and Setup](#technical-requirements-and-setup)
-- [Contributing Code](#contributing-code)
-- [Contributing Documentation](#contributing-documentation)
-- [Questions or Suggestions?](#questions-or-suggestions)
-- [Last Words](#last-words)
-
----
+> The following documentation describes how to work with Mermaid in your host environment.
+> There's also a [Docker installation guide](../community/docker-development.md)
+> if you prefer to work in a Docker environment.
 
 So you want to help? That's great!
 
@@ -22,47 +16,68 @@ So you want to help? That's great!
 
 Here are a few things to get you started on the right path.
 
-## Technical Requirements and Setup
+## Get the Source Code
 
-### Technical Requirements
+In GitHub, you first **fork** a repository when you are going to make changes and submit pull requests.
 
-These are the tools we use for working with the code and documentation.
+Then you **clone** a copy to your local development machine (e.g. where you code) to make a copy with all the files to work with.
+
+[Fork mermaid](https://github.com/mermaid-js/mermaid/fork) to start contributing to the main project and its documentaion, or [search for other repositories](https://github.com/orgs/mermaid-js/repositories).
+
+[Here is a GitHub document that gives an overview of the process.](https://docs.github.com/en/get-started/quickstart/fork-a-repo)
+
+## Technical Requirements
+
+> The following documentation describes how to work with Mermaid in your host environment.
+> There's also a [Docker installation guide](../community/docker-development.md)
+> if you prefer to work in a Docker environment.
+
+These are the tools we use for working with the code and documentation:
 
 - [volta](https://volta.sh/) to manage node versions.
 - [Node.js](https://nodejs.org/en/). `volta install node`
 - [pnpm](https://pnpm.io/) package manager. `volta install pnpm`
-- [npx](https://docs.npmjs.com/cli/v8/commands/npx) the packaged executor in npm. This is needed [to install pnpm.](#2-install-pnpm)
+- [npx](https://docs.npmjs.com/cli/v8/commands/npx) the packaged executor in npm. This is needed [to install pnpm.](#install-packages)
 
-Follow [the setup steps below](#setup) to install them and verify they are working
+Follow the setup steps below to install them and start the development.
 
-### Setup
+## Setup and Launch
 
-Follow these steps to set up the environment you need to work on code and/or documentation.
+### Switch to project
 
-#### 1. Fork and clone the repository
-
-In GitHub, you first _fork_ a repository when you are going to make changes and submit pull requests.
-
-Then you _clone_ a copy to your local development machine (e.g. where you code) to make a copy with all the files to work with.
-
-[Here is a GitHub document that gives an overview of the process.](https://docs.github.com/en/get-started/quickstart/fork-a-repo)
-
-#### 2. Install pnpm
-
-Once you have cloned the repository onto your development machine, change into the `mermaid` project folder so that you can install `pnpm`. You will need `npx` to install pnpm because volta doesn't support it yet.
-
-Ex:
+Once you have cloned the repository onto your development machine, change into the `mermaid` project folder (the top level directory of the mermaid project repository)
 
 ```bash
-# Change into the mermaid directory (the top level director of the mermaid project repository)
 cd mermaid
-# npx is required for first install because volta does not support pnpm yet
-npx pnpm install
 ```
 
-#### 3. Verify Everything Is Working
+### Install packages
 
-Once you have installed pnpm, you can run the `test` script to verify that pnpm is working _and_ that the repository has been cloned correctly:
+Run `npx pnpm install`. You will need `npx` for this because volta doesn't support it yet.
+
+```bash
+npx pnpm install # npx is required for first install
+```
+
+### Launch
+
+```bash
+npx pnpm run dev
+```
+
+Now you are ready to make your changes! Edit whichever files in `src` as required.
+
+Open <http://localhost:9000> in your browser, after starting the dev server.
+There is a list of demos that can be used to see and test your changes.
+
+If you need a specific diagram, you can duplicate the `example.html` file in `/demos/dev` and add your own mermaid code to your copy.
+
+That will be served at <http://localhost:9000/dev/your-file-name.html>.
+After making code changes, the dev server will rebuild the mermaid library. You will need to reload the browser page yourself to see the changes. (PRs for auto reload are welcome!)
+
+## Verify Everything is Working
+
+You can run the `test` script to verify that pnpm is working _and_ that the repository has been cloned correctly:
 
 ```bash
 pnpm test
@@ -72,303 +87,6 @@ The `test` script and others are in the top-level `package.json` file.
 
 All tests should run successfully without any errors or failures. (You might see _lint_ or _formatting_ warnings; those are ok during this step.)
 
-### Docker
-
-If you are using docker and docker-compose, you have self-documented `run` bash script, which is a convenient alias for docker-compose commands:
-
-```bash
-./run install # npx pnpm install
-./run test # pnpm test
-```
-
-## Contributing Code
-
-The basic steps for contributing code are:
-
-```mermaid-example
-graph LR
-    git[1. Checkout a  git branch] --> codeTest[2. Write tests and code] --> doc[3. Update documentation] --> submit[4. Submit a PR] --> review[5. Review and merge]
-```
-
-```mermaid
-graph LR
-    git[1. Checkout a  git branch] --> codeTest[2. Write tests and code] --> doc[3. Update documentation] --> submit[4. Submit a PR] --> review[5. Review and merge]
-```
-
-1.  **Create** and checkout a git branch and work on your code in the branch
-2.  Write and update **tests** (unit and perhaps even integration (e2e) tests) (If you do TDD/BDD, the order might be different.)
-3.  **Let users know** that things have changed or been added in the documents! This is often overlooked, but _critical_
-4.  **Submit** your code as a _pull request_.
-5.  Maintainers will **review** your code. If there are no changes necessary, the PR will be merged. Otherwise, make the requested changes and repeat.
-
-### 1. Checkout a git branch
-
-Mermaid uses a [Git Flow](https://guides.github.com/introduction/flow/)–inspired approach to branching.
-
-Development is done in the `develop` branch.
-
-Once development is done we create a `release/vX.X.X` branch from `develop` for testing.
-
-Once the release happens we add a tag to the `release` branch and merge it with `master`. The live product and on-line documentation are what is in the `master` branch.
-
-**All new work should be based on the `develop` branch.**
-
-**When you are ready to do work, always, ALWAYS:**
-
-1.  Make sure you have the most up-to-date version of the `develop` branch. (fetch or pull to update it)
-2.  Check out the `develop` branch
-3.  Create a new branch for your work. Please name the branch following our naming convention below.
-
-We use the follow naming convention for branches:
-
-```text
-   [feature | bug | chore | docs]/[issue number]_[short description using dashes ('-') or underscores ('_') instead of spaces]
-```
-
-- The first part is the **type** of change: a feature, bug, chore, or documentation change ('docs')
-- followed by a _slash_ (which helps to group like types together in many git tools)
-- followed by the **issue number**
-- followed by an _underscore_ ('\_')
-- followed by a short text description (but use dashes ('-') or underscores ('\_') instead of spaces)
-
-If your work is specific to a single diagram type, it is a good idea to put the diagram type at the start of the description. This will help us keep release notes organized: it will help us keep changes for a diagram type together.
-
-**Ex: A new feature described in issue 2945 that adds a new arrow type called 'florbs' to state diagrams**
-
-`feature/2945_state-diagram-new-arrow-florbs`
-
-**Ex: A bug described in issue 1123 that causes random ugly red text in multiple diagram types**
-`bug/1123_fix_random_ugly_red_text`
-
-### 2. Write Tests
-
-Tests ensure that each function, module, or part of code does what it says it will do. This is critically
-important when other changes are made to ensure that existing code is not broken (no regression).
-
-Just as important, the tests act as _specifications:_ they specify what the code does (or should do).
-Whenever someone is new to a section of code, they should be able to read the tests to get a thorough understanding of what it does and why.
-
-If you are fixing a bug, you should add tests to ensure that your code has actually fixed the bug, to specify/describe what the code is doing, and to ensure the bug doesn't happen again.
-(If there had been a test for the situation, the bug never would have happened in the first place.)
-You may need to change existing tests if they were inaccurate.
-
-If you are adding a feature, you will definitely need to add tests. Depending on the size of your feature, you may need to add integration tests.
-
-#### Unit Tests
-
-Unit tests are tests that test a single function or module. They are the easiest to write and the fastest to run.
-
-Unit tests are mandatory all code except the renderers. (The renderers are tested with integration tests.)
-
-We use [Vitest](https://vitest.dev) to run unit tests.
-
-You can use the following command to run the unit tests:
-
-```sh
-pnpm test
-```
-
-When writing new tests, it's easier to have the tests automatically run as you make changes. You can do this by running the following command:
-
-```sh
-pnpm test:watch
-```
-
-#### Integration/End-to-End (e2e) tests
-
-These test the rendering and visual appearance of the diagrams.
-This ensures that the rendering of that feature in the e2e will be reviewed in the release process going forward. Less chance that it breaks!
-
-To start working with the e2e tests:
-
-1.  Run `pnpm dev` to start the dev server
-2.  Start **Cypress** by running `pnpm cypress:open`.
-
-The rendering tests are very straightforward to create. There is a function `imgSnapshotTest`, which takes a diagram in text form and the mermaid options, and it renders that diagram in Cypress.
-
-When running in CI it will take a snapshot of the rendered diagram and compare it with the snapshot from last build and flag it for review if it differs.
-
-This is what a rendering test looks like:
-
-```js
-it('should render forks and joins', () => {
-  imgSnapshotTest(
-    `
-    stateDiagram
-    state fork_state &lt;&lt;fork&gt;&gt;
-      [*] --> fork_state
-      fork_state --> State2
-      fork_state --> State3
-
-      state join_state &lt;&lt;join&gt;&gt;
-      State2 --> join_state
-      State3 --> join_state
-      join_state --> State4
-      State4 --> [*]
-    `,
-    { logLevel: 0 }
-  );
-  cy.get('svg');
-});
-```
-
-**_\[TODO - running the tests against what is expected in development. ]_**
-
-**_\[TODO - how to generate new screenshots]_**
-....
-
-### 3. Update Documentation
-
-If the users have no way to know that things have changed, then you haven't really _fixed_ anything for the users; you've just added to making Mermaid feel broken.
-Likewise, if users don't know that there is a new feature that you've implemented, it will forever remain unknown and unused.
-
-The documentation has to be updated to users know that things have changed and added!
-
-We know it can sometimes be hard to code _and_ write user documentation.
-
-Our documentation is managed in `packages/mermaid/src/docs`. Details on how to edit is in the [Contributing Documentation](#contributing-documentation) section.
-
-Create another issue specifically for the documentation.\
-You will need to help with the PR, but definitely ask for help if you feel stuck.
-When it feels hard to write stuff out, explaining it to someone and having that person ask you clarifying questions can often be 80% of the work!
-
-When in doubt, write up and submit what you can. It can be clarified and refined later. (With documentation, something is better than nothing!)
-
-### 4. Submit your pull request
-
-**\[TODO - PR titles should start with (fix | feat | ....)]**
-
-We make all changes via Pull Requests (PRs). As we have many Pull Requests from developers new to Mermaid, we have put in place a process wherein _knsv, Knut Sveidqvist_ is in charge of the final release process and the active maintainers are in charge of reviewing and merging most PRs.
-
-- PRs will be reviewed by active maintainers, who will provide feedback and request changes as needed.
-- The maintainers will request a review from knsv, if necessary.
-- Once the PR is approved, the maintainers will merge the PR into the `develop` branch.
-- When a release is ready, the `release/x.x.x` branch will be created, extensively tested and knsv will be in charge of the release process.
-
-**Reminder: Pull Requests should be submitted to the develop branch.**
-
-## Contributing Documentation
-
-**_\[TODO: This section is still a WIP. It still needs MAJOR revision.]_**
-
-If it is not in the documentation, it's like it never happened. Wouldn't that be sad? With all the effort that was put into the feature?
-
-The docs are located in the `packages/mermaid/src/docs` folder and are written in Markdown. Just pick the right section and start typing.
-
-The contents of [mermaid.js.org](https://mermaid.js.org/) are based on the docs from the `master` branch.
-Updates committed to the `master` branch are reflected in the [Mermaid Docs](https://mermaid.js.org/) once published.
-
-### How to Contribute to Documentation
-
-We are a little less strict here, it is OK to commit directly in the `develop` branch if you are a collaborator.
-
-The documentation is located in the `packages/mermaid/src/docs` directory and organized according to relevant subfolder.
-
-The `docs` folder will be automatically generated when committing to `packages/mermaid/src/docs` and **should not** be edited manually.
-
-```mermaid-example
-flowchart LR
-  classDef default fill:#fff,color:black,stroke:black
-
-  source["files in /packages/mermaid/src/docs\n(changes should be done here)"] -- automatic processing\nto generate the final documentation--> published["files in /docs\ndisplayed on the official documentation site"]
-
-```
-
-```mermaid
-flowchart LR
-  classDef default fill:#fff,color:black,stroke:black
-
-  source["files in /packages/mermaid/src/docs\n(changes should be done here)"] -- automatic processing\nto generate the final documentation--> published["files in /docs\ndisplayed on the official documentation site"]
-
-```
-
-You can use `note`, `tip`, `warning` and `danger` in triple backticks to add a note, tip, warning or danger box.
-Do not use vitepress specific markdown syntax `::: warning` as it will not be processed correctly.
-
-````
-```note
-Note content
-```
-
-```tip
-Tip content
-```
-
-```warning
-Warning content
-```
-
-```danger
-Danger content
-```
-
-````
-
-> **Note**
-> If the change is _only_ to the documentation, you can get your changes published to the site quicker by making a PR to the `master` branch.
-
-We encourage contributions to the documentation at [packages/mermaid/src/docs in the _develop_ branch](https://github.com/mermaid-js/mermaid/tree/develop/packages/mermaid/src/docs).
-
-**_DO NOT CHANGE FILES IN `/docs`_**
-
-### The official documentation site
-
-**[The mermaid documentation site](https://mermaid.js.org/) is powered by [Vitepress](https://vitepress.vuejs.org/).**
-
-To run the documentation site locally:
-
-1.  Run `pnpm --filter mermaid run docs:dev` to start the dev server. (Or `pnpm docs:dev` inside the `packages/mermaid` directory.)
-2.  Open <http://localhost:3333/> in your browser.
-
-Markdown is used to format the text, for more information about Markdown [see the GitHub Markdown help page](https://help.github.com/en/github/writing-on-github/basic-writing-and-formatting-syntax).
-
-To edit Docs on your computer:
-
-_\[TODO: need to keep this in sync with [check out a git branch in Contributing Code above](#1-checkout-a-git-branch) ]_
-
-1.  Create a fork of the develop branch to work on.
-2.  Find the Markdown file (.md) to edit in the `packages/mermaid/src/docs` directory.
-3.  Make changes or add new documentation.
-4.  Commit changes to your branch and push it to GitHub (which should create a new branch).
-5.  Create a Pull Request of your fork.
-
-To edit Docs on GitHub:
-
-1.  Login to [GitHub.com](https://www.github.com).
-2.  Navigate to [packages/mermaid/src/docs](https://github.com/mermaid-js/mermaid/tree/develop/packages/mermaid/src/docs) in the mermaid-js repository.
-3.  To edit a file, click the pencil icon at the top-right of the file contents panel.
-4.  Describe what you changed in the **Propose file change** section, located at the bottom of the page.
-5.  Submit your changes by clicking the button **Propose file change** at the bottom (by automatic creation of a fork and a new branch).
-6.  Visit the Actions tab in Github, `https://github.com/<Your Username>/mermaid/actions` and enable the actions for your fork. This will ensure that the documentation is built and updated in your fork.
-7.  Create a Pull Request of your newly forked branch by clicking the green **Create Pull Request** button.
-
-### Documentation organization: Sidebar navigation
-
-If you want to propose changes to how the documentation is _organized_, such as adding a new section or re-arranging or renaming a section, you must update the **sidebar navigation.**
-
-The sidebar navigation is defined in [the vitepress configuration file config.ts](../.vitepress/config.ts).
-
-## Questions or Suggestions?
-
-#### First search to see if someone has already asked (and hopefully been answered) or suggested the same thing.
-
-- Search in Discussions
-- Search in open Issues
-- Search in closed Issues
-
-If you find an open issue or discussion thread that is similar to your question but isn't answered, you can let us know that you are also interested in it.
-Use the GitHub reactions to add a thumbs-up to the issue or discussion thread.
-
-This helps the team know the relative interest in something and helps them set priorities and assignments.
-
-Feel free to add to the discussion on the issue or topic.
-
-If you can't find anything that already addresses your question or suggestion, _open a new issue:_
-
-Log in to [GitHub.com](https://www.github.com), open or append to an issue [using the GitHub issue tracker of the mermaid-js repository](https://github.com/mermaid-js/mermaid/issues?q=is%3Aissue+is%3Aopen+label%3A%22Area%3A+Documentation%22).
-
-### How to Contribute a Suggestion
-
 ## Last Words
 
 Don't get daunted if it is hard in the beginning. We have a great community with only encouraging words. So, if you get stuck, ask for help and hints in the Slack forum. If you want to show off something good, show it off there.

docs/community/docker-development.md

@@ -0,0 +1,109 @@
+> **Warning**
+>
+> ## THIS IS AN AUTOGENERATED FILE. DO NOT EDIT.
+>
+> ## Please edit the corresponding file in [/packages/mermaid/src/docs/community/docker-development.md](../../packages/mermaid/src/docs/community/docker-development.md).
+
+# Contributing to Mermaid via Docker
+
+> The following documentation describes how to work with Mermaid in a Docker environment.
+> There's also a [host installation guide](../community/development.md)
+> if you prefer to work without a Docker environment.
+
+So you want to help? That's great!
+
+![Image of happy people jumping with excitement](https://media.giphy.com/media/BlVnrxJgTGsUw/giphy.gif)
+
+Here are a few things to get you started on the right path.
+
+## Get the Source Code
+
+In GitHub, you first **fork** a repository when you are going to make changes and submit pull requests.
+
+Then you **clone** a copy to your local development machine (e.g. where you code) to make a copy with all the files to work with.
+
+[Fork mermaid](https://github.com/mermaid-js/mermaid/fork) to start contributing to the main project and its documentaion, or [search for other repositories](https://github.com/orgs/mermaid-js/repositories).
+
+[Here is a GitHub document that gives an overview of the process.](https://docs.github.com/en/get-started/quickstart/fork-a-repo)
+
+## Technical Requirements
+
+> The following documentation describes how to work with Mermaid in a Docker environment.
+> There's also a [host installation guide](../community/development.md)
+> if you prefer to work without a Docker environment.
+
+[Install Docker](https://docs.docker.com/engine/install/). And that is pretty much all you need.
+
+Optionally, to run GUI (Cypress) within Docker you will also need an X11 server installed.
+You might already have it installed, so check this by running:
+
+```bash
+echo $DISPLAY
+```
+
+If the `$DISPLAY` variable is not empty, then an X11 server is running. Otherwise you may need to install one.
+
+## Setup and Launch
+
+### Switch to project
+
+Once you have cloned the repository onto your development machine, change into the `mermaid` project folder (the top level directory of the mermaid project repository)
+
+```bash
+cd mermaid
+```
+
+### Make `./run` executable
+
+For development using Docker there is a self-documented `run` bash script, which provides convenient aliases for `docker compose` commands.
+
+Ensure `./run` script is executable:
+
+```bash
+chmod +x run
+```
+
+> **💡 Tip**
+> To get detailed help simply type `./run` or `./run help`.
+>
+> It also has short _Development quick start guide_ embedded.
+
+### Install packages
+
+```bash
+./run pnpm install  # Install packages
+```
+
+### Launch
+
+```bash
+./run dev
+```
+
+Now you are ready to make your changes! Edit whichever files in `src` as required.
+
+Open <http://localhost:9000> in your browser, after starting the dev server.
+There is a list of demos that can be used to see and test your changes.
+
+If you need a specific diagram, you can duplicate the `example.html` file in `/demos/dev` and add your own mermaid code to your copy.
+
+That will be served at <http://localhost:9000/dev/your-file-name.html>.
+After making code changes, the dev server will rebuild the mermaid library. You will need to reload the browser page yourself to see the changes. (PRs for auto reload are welcome!)
+
+## Verify Everything is Working
+
+```bash
+./run pnpm test
+```
+
+The `test` script and others are in the top-level `package.json` file.
+
+All tests should run successfully without any errors or failures. (You might see _lint_ or _formatting_ warnings; those are ok during this step.)
+
+## Last Words
+
+Don't get daunted if it is hard in the beginning. We have a great community with only encouraging words. So, if you get stuck, ask for help and hints in the Slack forum. If you want to show off something good, show it off there.
+
+[Join our Slack community if you want closer contact!](https://join.slack.com/t/mermaid-talk/shared_invite/enQtNzc4NDIyNzk4OTAyLWVhYjQxOTI2OTg4YmE1ZmJkY2Y4MTU3ODliYmIwOTY3NDJlYjA0YjIyZTdkMDMyZTUwOGI0NjEzYmEwODcwOTE)
+
+![Image of superhero wishing you good luck](https://media.giphy.com/media/l49JHz7kJvl6MCj3G/giphy.gif)

docs/community/documentation.md

@@ -0,0 +1,105 @@
+> **Warning**
+>
+> ## THIS IS AN AUTOGENERATED FILE. DO NOT EDIT.
+>
+> ## Please edit the corresponding file in [/packages/mermaid/src/docs/community/documentation.md](../../packages/mermaid/src/docs/community/documentation.md).
+
+# Contributing Documentation
+
+**_\[TODO: This section is still a WIP. It still needs MAJOR revision.]_**
+
+If it is not in the documentation, it's like it never happened. Wouldn't that be sad? With all the effort that was put into the feature?
+
+The docs are located in the `packages/mermaid/src/docs` folder and are written in Markdown. Just pick the right section and start typing.
+
+The contents of [mermaid.js.org](https://mermaid.js.org/) are based on the docs from the `master` branch.
+Updates committed to the `master` branch are reflected in the [Mermaid Docs](https://mermaid.js.org/) once published.
+
+## How to Contribute to Documentation
+
+We are a little less strict here, it is OK to commit directly in the `develop` branch if you are a collaborator.
+
+The documentation is located in the `packages/mermaid/src/docs` directory and organized according to relevant subfolder.
+
+The `docs` folder will be automatically generated when committing to `packages/mermaid/src/docs` and **should not** be edited manually.
+
+```mermaid-example
+flowchart LR
+  classDef default fill:#fff,color:black,stroke:black
+
+  source["files in /packages/mermaid/src/docs\n(changes should be done here)"] -- automatic processing\nto generate the final documentation--> published["files in /docs\ndisplayed on the official documentation site"]
+
+```
+
+```mermaid
+flowchart LR
+  classDef default fill:#fff,color:black,stroke:black
+
+  source["files in /packages/mermaid/src/docs\n(changes should be done here)"] -- automatic processing\nto generate the final documentation--> published["files in /docs\ndisplayed on the official documentation site"]
+
+```
+
+You can use `note`, `tip`, `warning` and `danger` in triple backticks to add a note, tip, warning or danger box.
+Do not use vitepress specific markdown syntax `::: warning` as it will not be processed correctly.
+
+````markdown
+```note
+Note content
+```
+
+```tip
+Tip content
+```
+
+```warning
+Warning content
+```
+
+```danger
+Danger content
+```
+````
+
+> **Note**
+> If the change is _only_ to the documentation, you can get your changes published to the site quicker by making a PR to the `master` branch. In that case, your branch should be based on master, not develop.
+
+We encourage contributions to the documentation at [packages/mermaid/src/docs in the _develop_ branch](https://github.com/mermaid-js/mermaid/tree/develop/packages/mermaid/src/docs).
+
+**_DO NOT CHANGE FILES IN `/docs`_**
+
+## The official documentation site
+
+**[The mermaid documentation site](https://mermaid.js.org/) is powered by [Vitepress](https://vitepress.vuejs.org/).**
+
+To run the documentation site locally:
+
+1.  Run `pnpm --filter mermaid run docs:dev` to start the dev server. (Or `pnpm docs:dev` inside the `packages/mermaid` directory.)
+2.  Open <http://localhost:3333/> in your browser.
+
+Markdown is used to format the text, for more information about Markdown [see the GitHub Markdown help page](https://help.github.com/en/github/writing-on-github/basic-writing-and-formatting-syntax).
+
+To edit Docs on your computer:
+
+_\[TODO: need to keep this in sync with [check out a git branch in Contributing Code above](#1-checkout-a-git-branch) ]_
+
+1.  Create a fork of the develop branch to work on.
+2.  Find the Markdown file (.md) to edit in the `packages/mermaid/src/docs` directory.
+3.  Make changes or add new documentation.
+4.  Commit changes to your branch and push it to GitHub (which should create a new branch).
+5.  Create a Pull Request from the branch of your fork.
+
+To edit Docs on GitHub:
+
+1.  Login to [GitHub.com](https://www.github.com).
+2.  Navigate to [packages/mermaid/src/docs](https://github.com/mermaid-js/mermaid/tree/develop/packages/mermaid/src/docs) in the mermaid-js repository.
+3.  To edit a file, click the pencil icon at the top-right of the file contents panel.
+4.  Describe what you changed in the **Propose file change** section, located at the bottom of the page.
+5.  Submit your changes by clicking the button **Propose file change** at the bottom (by automatic creation of a fork and a new branch).
+6.  Visit the Actions tab in Github, `https://github.com/<Your Username>/mermaid/actions` and enable the actions for your fork. This will ensure that the documentation is built and updated in your fork.
+7.  Create a Pull Request of your newly forked branch by clicking the green **Create Pull Request** button.
+
+## Documentation organization: Sidebar navigation
+
+If you want to propose changes to how the documentation is _organized_, such as adding a new section or re-arranging or renaming a section, you must update the **sidebar navigation.**
+
+The sidebar navigation is defined in [the vitepress configuration file config.ts](../.vitepress/config.ts).

docs/community/n00b-overview.md

@@ -1,74 +0,0 @@
-> **Warning**
->
-> ## THIS IS AN AUTOGENERATED FILE. DO NOT EDIT.
->
-> ## Please edit the corresponding file in [/packages/mermaid/src/docs/community/n00b-overview.md](../../packages/mermaid/src/docs/community/n00b-overview.md).
-
-# Overview for Beginners
-
-**Explaining with a Diagram**
-
-A picture is worth a thousand words, a good diagram is undoubtedly worth more. They make understanding easier.
-
-## Creating and Maintaining Diagrams
-
-Anyone who has used Visio, or (God Forbid) Excel to make a Gantt Chart, knows how hard it is to create, edit and maintain good visualizations.
-
-Diagrams/Charts are significant but also become obsolete/inaccurate very fast. This catch-22 hobbles the productivity of teams.
-
-# Doc Rot in Diagrams
-
-Doc-Rot kills diagrams as quickly as it does text, but it takes hours in a desktop application to produce a diagram.
-
-Mermaid seeks to change using markdown-inspired syntax. The process is a quicker, less complicated, and more convenient way of going from concept to visualization.
-
-It is a relatively straightforward solution to a significant hurdle with the software teams.
-
-# Definition of Terms/ Dictionary
-
-**Mermaid text definitions can be saved for later reuse and editing.**
-
-> These are the Mermaid diagram definitions inside `<div>` tags, with the `class=mermaid`.
-
-```html
-<pre class="mermaid">
-    graph TD
-    A[Client] --> B[Load Balancer]
-    B --> C[Server01]
-    B --> D[Server02]
-</pre>
-```
-
-**render**
-
-> This is the core function of the Mermaid API. It reads all the `Mermaid Definitions` inside `div` tags and returns an SVG file, based on the definition.
-
-**Nodes**
-
-> These are the boxes that contain text or otherwise discrete pieces of each diagram, separated generally by arrows, except for Gantt Charts and User Journey Diagrams. They will be referred often in the instructions. Read for Diagram Specific [Syntax](../intro/n00b-syntaxReference.md)
-
-## Advantages of using Mermaid
-
-- Ease to generate, modify and render diagrams when you make them.
-- The number of integrations and plugins it has.
-- You can add it to your or companies website.
-- Diagrams can be created through comments like this in a script:
-
-## The catch-22 of Diagrams and Charts:
-
-**Diagramming and charting is a large waste of developer's time, but not having diagrams ruins productivity.**
-
-Mermaid solves this by reducing the time and effort required to create diagrams and charts.
-
-Because, the text base for the diagrams allows it to be updated easily. Also, it can be made part of production scripts (and other pieces of code). So less time is spent on documenting, as a separate task.
-
-## Catching up with Development
-
-Being based on markdown, Mermaid can be used, not only by accomplished front-end developers, but by most computer savvy people to render diagrams, at much faster speeds.
-In fact one can pick up the syntax for it quite easily from the examples given and there are many tutorials available in the internet.
-
-## Mermaid is for everyone.
-
-Video [Tutorials](https://mermaid.js.org/config/Tutorials.html) are also available for the mermaid [live editor](https://mermaid.live/).
-
-Alternatively you can use Mermaid [Plug-Ins](https://mermaid-js.github.io/mermaid/#/./integrations), with tools you already use, like Google Docs.