chore: Remove unused imports in block

* develop:
  Update docs
  chore(deps): update all patch dependencies

.build/common.ts

@@ -0,0 +1,30 @@
+/**
+ * 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',
+  },
+  'mermaid-flowchart-elk': {
+    name: 'mermaid-flowchart-elk',
+    packageName: 'mermaid-flowchart-elk',
+    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 +1,124 @@
+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',
+  'xyChart',
+  'requirement',
+  'mindmap',
+  'timeline',
+  'gitGraph',
+  'c4',
+  'sankey',
+  'block',
+  'packet',
+] as const;
+
+/**
+ * Generate default values from the JSON Schema.
+ *
+ * AJV does not support nested default values yet (or default values with $ref),
+ * so we need to manually find them (this may be fixed in ajv v9).
+ *
+ * @param mermaidConfigSchema - The Mermaid JSON Schema to use.
+ * @returns The default mermaid config object.
+ */
+function generateDefaults(mermaidConfigSchema: JSONSchemaType<MermaidConfig>) {
+  const ajv = new Ajv2019({
+    useDefaults: true,
+    allowUnionTypes: true,
+    strict: true,
+  });
+
+  ajv.addKeyword({
+    keyword: 'meta:enum', // used by jsonschema2md
+    errors: false,
+  });
+  ajv.addKeyword({
+    keyword: 'tsType', // used by json-schema-to-typescript
+    errors: false,
+  });
+
+  // ajv currently doesn't support nested default values, see https://github.com/ajv-validator/ajv/issues/1718
+  // (may be fixed in v9) so we need to manually use sub-schemas
+  const mermaidDefaultConfig = {};
+
+  assert.ok(mermaidConfigSchema.$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/types.ts

@@ -0,0 +1,18 @@
+import { packageOptions } from './common.js';
+import { execSync } from 'child_process';
+
+const buildType = (packageName: string) => {
+  console.log(`Building types for ${packageName}`);
+  try {
+    const out = execSync(`tsc -p ./packages/${packageName}/tsconfig.json --emitDeclarationOnly`);
+    out.length > 0 && console.log(out.toString());
+  } catch (e) {
+    console.error(e);
+    e.stdout.length > 0 && console.error(e.stdout.toString());
+    e.stderr.length > 0 && console.error(e.stderr.toString());
+  }
+};
+
+for (const { packageName } of Object.values(packageOptions)) {
+  buildType(packageName);
+}

.cspell/code-terms.txt

@@ -53,6 +53,7 @@ GENERICTYPE
 getBoundarys
 grammr
 graphtype
+iife
 interp
 introdcued
 INVTRAPEND
@@ -74,11 +75,13 @@ loglevel
 LOGMSG
 lookaheads
 mdast
+metafile
 minlen
 Mstartx
 MULT
 NODIR
 NSTR
+outdir
 Qcontrolx
 reinit
 rels

.cspell/libraries.txt

@@ -36,6 +36,7 @@ jsfiddle
 jsonschema
 katex
 khroma
+langium
 mathml
 matplotlib
 mdbook

.esbuild/build.ts

@@ -0,0 +1,65 @@
+import { build } from 'esbuild';
+import { mkdir, writeFile } from 'node:fs/promises';
+import { packageOptions } from '../.build/common.js';
+import { generateLangium } from '../.build/generateLangium.js';
+import { MermaidBuildOptions, defaultOptions, getBuildConfig } from './util.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 dependency
+  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 +1,102 @@
+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';
+import { packageOptions } from '../.build/common.js';
+
+const configs = Object.values(packageOptions).map(({ packageName }) =>
+  getBuildConfig({ ...defaultOptions, minify: false, core: false, entryName: packageName })
+);
+const mermaidIIFEConfig = getBuildConfig({
+  ...defaultOptions,
+  minify: false,
+  core: false,
+  entryName: 'mermaid',
+  format: 'iife',
+});
+configs.push(mermaidIIFEConfig);
+
+const contexts = await Promise.all(configs.map((config) => context(config)));
+
+const rebuildAll = async () => {
+  console.time('Rebuild time');
+  await Promise.all(contexts.map((ctx) => ctx.rebuild())).catch((e) => console.error(e));
+  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(`${path} changed. Rebuilding...`);
+      handleFileChange();
+    });
+
+  app.use(cors());
+  app.get('/events', eventsHandler);
+  for (const { packageName } of Object.values(packageOptions)) {
+    app.use(express.static(`./packages/${packageName}/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 +1,101 @@
+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/${outFileName}/[name]-[hash]`,
+    define: {
+      'import.meta.vitest': 'undefined',
+    },
+  });
+
+  if (core) {
+    const { dependencies } = JSON.parse(
+      readFileSync(resolve(__dirname, `../packages/${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/

.github/codecov.yaml

@@ -15,3 +15,4 @@ coverage:
       # Turing off for now as code coverage isn't stable and causes unnecessary build failures.
       # default:
       #   threshold: 2%
+    patch: off

.gitignore

@@ -46,4 +46,8 @@ stats/
 
 demos/dev/**
 !/demos/dev/example.html
+!/demos/dev/reload.js
 tsx-0/**
+
+# autogenereated by langium-cli
+generated/

.prettierignore

@@ -11,6 +11,8 @@ stats
 .nyc_output
 # Autogenerated by `pnpm run --filter mermaid types:build-config`
 packages/mermaid/src/config.type.ts
+# autogenereated by langium-cli
+generated/
 # Ignore the files creates in /demos/dev except for example.html
 demos/dev/**
 !/demos/dev/example.html

.vite/build.ts

@@ -3,11 +3,12 @@ import { resolve } from 'path';
 import { fileURLToPath } from 'url';
 import jisonPlugin from './jisonPlugin.js';
 import jsonSchemaPlugin from './jsonSchemaPlugin.js';
-import { readFileSync } from 'fs';
 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');
@@ -36,24 +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;
@@ -72,34 +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: {
@@ -129,7 +86,7 @@ export const getBuildConfig = ({ minify, core, watch, entryName }: BuildOptions)
       // @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,
@@ -149,24 +106,28 @@ 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

@@ -1,110 +1,5 @@
-import { load, JSON_SCHEMA } from 'js-yaml';
-import assert from 'node:assert';
-import Ajv2019, { type JSONSchemaType } from 'ajv/dist/2019.js';
 import { PluginOption } from 'vite';
-
-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',
-  'xyChart',
-  'requirement',
-  'mindmap',
-  'timeline',
-  'gitGraph',
-  'c4',
-  'sankey',
-  'block',
-] as const;
-
-/**
- * Generate default values from the JSON Schema.
- *
- * AJV does not support nested default values yet (or default values with $ref),
- * so we need to manually find them (this may be fixed in ajv v9).
- *
- * @param mermaidConfigSchema - The Mermaid JSON Schema to use.
- * @returns The default mermaid config object.
- */
-function generateDefaults(mermaidConfigSchema: JSONSchemaType<MermaidConfig>) {
-  const ajv = new Ajv2019({
-    useDefaults: true,
-    allowUnionTypes: true,
-    strict: true,
-  });
-
-  ajv.addKeyword({
-    keyword: 'meta:enum', // used by jsonschema2md
-    errors: false,
-  });
-  ajv.addKeyword({
-    keyword: 'tsType', // used by json-schema-to-typescript
-    errors: false,
-  });
-
-  // ajv currently doesn't support nested default values, see https://github.com/ajv-validator/ajv/issues/1718
-  // (may be fixed in v9) so we need to manually use sub-schemas
-  const mermaidDefaultConfig = {};
-
-  assert.ok(mermaidConfigSchema.$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;
-}
+import { getDefaults, getSchema, loadSchema } from '../.build/jsonSchema.js';
 
 /**
  * Vite plugin that handles JSON Schemas saved as a `.schema.yaml` file.
@@ -121,32 +16,13 @@ export default function jsonSchemaPlugin(): PluginOption {
         return;
       }
 
-      if (idAsUrl.searchParams.get('only-defaults')) {
-        const jsonSchema = load(src, {
-          filename: idAsUrl.pathname,
-          // 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 {
-          code: `export default ${JSON.stringify(generateDefaults(jsonSchema), undefined, 2)};`,
-          map: null, // no source map
-        };
-      } else {
-        return {
-          code: `export default ${JSON.stringify(
-            load(src, {
-              filename: idAsUrl.pathname,
-              // 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,
-            }),
-            undefined,
-            2
-          )};`,
-          map: null, // provide source map if available
-        };
-      }
+      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

@@ -1,6 +1,7 @@
 import express from 'express';
 import cors from 'cors';
 import { createServer as createViteServer } from 'vite';
+import { packageOptions } from '../.build/common.js';
 
 async function createServer() {
   const app = express();
@@ -14,9 +15,9 @@ async function createServer() {
   });
 
   app.use(cors());
-  app.use(express.static('./packages/mermaid/dist'));
-  app.use(express.static('./packages/mermaid-zenuml/dist'));
-  app.use(express.static('./packages/mermaid-example-diagram/dist'));
+  for (const { packageName } of Object.values(packageOptions)) {
+    app.use(express.static(`./packages/${packageName}/dist`));
+  }
   app.use(vite.middlewares);
   app.use(express.static('demos'));
   app.use(express.static('cypress/platform'));

__mocks__/c4Renderer.js

@@ -1,21 +0,0 @@
-/**
- * Mocked C4Context diagram renderer
- */
-
-import { vi } from 'vitest';
-
-export const drawPersonOrSystemArray = vi.fn();
-export const drawBoundary = vi.fn();
-
-export const setConf = vi.fn();
-
-export const draw = vi.fn().mockImplementation(() => {
-  return '';
-});
-
-export default {
-  drawPersonOrSystemArray,
-  drawBoundary,
-  setConf,
-  draw,
-};

__mocks__/classRenderer-v2.js

@@ -1,16 +0,0 @@
-/**
- * Mocked class diagram v2 renderer
- */
-
-import { vi } from 'vitest';
-
-export const setConf = vi.fn();
-
-export const draw = vi.fn().mockImplementation(() => {
-  return '';
-});
-
-export default {
-  setConf,
-  draw,
-};

__mocks__/classRenderer.js

@@ -1,13 +0,0 @@
-/**
- * Mocked class diagram renderer
- */
-
-import { vi } from 'vitest';
-
-export const draw = vi.fn().mockImplementation(() => {
-  return '';
-});
-
-export default {
-  draw,
-};

__mocks__/dagre-d3.ts

@@ -1 +0,0 @@
-// DO NOT delete this file. It is used by vitest to mock the dagre-d3 module.

__mocks__/entity-decode/browser.ts

@@ -1,3 +0,0 @@
-module.exports = function (txt: string) {
-  return txt;
-};

__mocks__/erRenderer.js

@@ -1,16 +0,0 @@
-/**
- * Mocked er diagram renderer
- */
-
-import { vi } from 'vitest';
-
-export const setConf = vi.fn();
-
-export const draw = vi.fn().mockImplementation(() => {
-  return '';
-});
-
-export default {
-  setConf,
-  draw,
-};

__mocks__/flowRenderer-v2.js

@@ -1,24 +0,0 @@
-/**
- * Mocked flow (flowchart) diagram v2 renderer
- */
-
-import { vi } from 'vitest';
-
-export const setConf = vi.fn();
-export const addVertices = vi.fn();
-export const addEdges = vi.fn();
-export const getClasses = vi.fn().mockImplementation(() => {
-  return {};
-});
-
-export const draw = vi.fn().mockImplementation(() => {
-  return '';
-});
-
-export default {
-  setConf,
-  addVertices,
-  addEdges,
-  getClasses,
-  draw,
-};

__mocks__/ganttRenderer.js

@@ -1,16 +0,0 @@
-/**
- * Mocked gantt diagram renderer
- */
-
-import { vi } from 'vitest';
-
-export const setConf = vi.fn();
-
-export const draw = vi.fn().mockImplementation(() => {
-  return '';
-});
-
-export default {
-  setConf,
-  draw,
-};

__mocks__/gitGraphRenderer.js

@@ -1,13 +0,0 @@
-/**
- * Mocked git (graph) diagram renderer
- */
-
-import { vi } from 'vitest';
-
-export const draw = vi.fn().mockImplementation(() => {
-  return '';
-});
-
-export default {
-  draw,
-};

__mocks__/journeyRenderer.js

@@ -1,15 +0,0 @@
-/**
- * Mocked pie (picChart) diagram renderer
- */
-
-import { vi } from 'vitest';
-export const setConf = vi.fn();
-
-export const draw = vi.fn().mockImplementation(() => {
-  return '';
-});
-
-export default {
-  setConf,
-  draw,
-};

__mocks__/pieRenderer.ts

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

__mocks__/requirementRenderer.js

@@ -1,13 +0,0 @@
-/**
- * Mocked requirement diagram renderer
- */
-
-import { vi } from 'vitest';
-
-export const draw = vi.fn().mockImplementation(() => {
-  return '';
-});
-
-export default {
-  draw,
-};

__mocks__/sankeyRenderer.js

@@ -1,13 +0,0 @@
-/**
- * Mocked Sankey diagram renderer
- */
-
-import { vi } from 'vitest';
-
-export const draw = vi.fn().mockImplementation(() => {
-  return '';
-});
-
-export default {
-  draw,
-};

__mocks__/sequenceRenderer.js

@@ -1,23 +0,0 @@
-/**
- * Mocked sequence diagram renderer
- */
-
-import { vi } from 'vitest';
-
-export const bounds = vi.fn();
-export const drawActors = vi.fn();
-export const drawActorsPopup = vi.fn();
-
-export const setConf = vi.fn();
-
-export const draw = vi.fn().mockImplementation(() => {
-  return '';
-});
-
-export default {
-  bounds,
-  drawActors,
-  drawActorsPopup,
-  setConf,
-  draw,
-};

__mocks__/stateRenderer-v2.js

@@ -1,22 +0,0 @@
-/**
- * Mocked state diagram v2 renderer
- */
-
-import { vi } from 'vitest';
-
-export const setConf = vi.fn();
-export const getClasses = vi.fn().mockImplementation(() => {
-  return {};
-});
-export const stateDomId = vi.fn().mockImplementation(() => {
-  return 'mocked-stateDiagram-stateDomId';
-});
-export const draw = vi.fn().mockImplementation(() => {
-  return '';
-});
-
-export default {
-  setConf,
-  getClasses,
-  draw,
-};

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

@@ -0,0 +1,14 @@
+import { urlSnapshotTest, openURLAndVerifyRendering } from '../../helpers/util.ts';
+
+describe('Flowchart elk', () => {
+  it('should use dagre as fallback', () => {
+    urlSnapshotTest('http://localhost:9000/flow-elk.html', {
+      name: 'flow-elk fallback to dagre',
+    });
+  });
+  it('should allow overriding with external package', () => {
+    urlSnapshotTest('http://localhost:9000/flow-elk.html?elk=true', {
+      name: 'flow-elk overriding dagre with elk',
+    });
+  });
+});

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/rendering/packet.spec.ts

@@ -0,0 +1,67 @@
+import { imgSnapshotTest } from '../../helpers/util';
+
+describe('packet structure', () => {
+  it('should render a simple packet diagram', () => {
+    imgSnapshotTest(
+      `packet-beta
+  title Hello world
+  0-10: "hello"
+`
+    );
+  });
+
+  it('should render a complex packet diagram', () => {
+    imgSnapshotTest(
+      `packet-beta
+        0-15: "Source Port"
+        16-31: "Destination Port"
+        32-63: "Sequence Number"
+        64-95: "Acknowledgment Number"
+        96-99: "Data Offset"
+        100-105: "Reserved"
+        106: "URG"
+        107: "ACK"
+        108: "PSH"
+        109: "RST"
+        110: "SYN"
+        111: "FIN"
+        112-127: "Window"
+        128-143: "Checksum"
+        144-159: "Urgent Pointer"
+        160-191: "(Options and Padding)"
+        192-223: "data"
+      `
+    );
+  });
+
+  it('should render a complex packet diagram with showBits false', () => {
+    imgSnapshotTest(
+      `
+      ---
+      title: "Packet Diagram"
+      config:
+        packet:
+          showBits: false
+      ---
+      packet-beta
+        0-15: "Source Port"
+        16-31: "Destination Port"
+        32-63: "Sequence Number"
+        64-95: "Acknowledgment Number"
+        96-99: "Data Offset"
+        100-105: "Reserved"
+        106: "URG"
+        107: "ACK"
+        108: "PSH"
+        109: "RST"
+        110: "SYN"
+        111: "FIN"
+        112-127: "Window"
+        128-143: "Checksum"
+        144-159: "Urgent Pointer"
+        160-191: "(Options and Padding)"
+        192-223: "data"
+      `
+    );
+  });
+});

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/flow-elk.html

@@ -0,0 +1,28 @@
+<html>
+  <body>
+    <pre class="mermaid">
+      flowchart-elk
+      a[hello] --> b[world]
+      b --> c{test}
+      c --> one
+      c --> two
+      c --> three
+    </pre>
+
+    <script type="module">
+      import mermaid from './mermaid.esm.mjs';
+      import elk from './mermaid-flowchart-elk.esm.min.mjs';
+      if (window.location.search.includes('elk')) {
+        await mermaid.registerExternalDiagrams([elk]);
+      }
+      mermaid.initialize({
+        logLevel: 3,
+        startOnLoad: false,
+      });
+      await mermaid.run();
+      if (window.Cypress) {
+        window.rendered = true;
+      }
+    </script>
+  </body>
+</html>

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/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>

demos/dev/example.html

@@ -3,6 +3,22 @@
 <html>
   <head>
     <title>Mermaid development page</title>
+    <style>
+      .container {
+        display: flex;
+        flex-direction: row;
+      }
+
+      #code {
+        max-width: 30vw;
+        width: 30vw;
+      }
+
+      #dynamicDiagram {
+        padding-left: 2em;
+        flex: 1;
+      }
+    </style>
   </head>
   <body>
     <pre id="diagram" class="mermaid">
@@ -13,22 +29,37 @@ graph TB
       c --> d
     </pre>
 
-    <div id="dynamicDiagram"></div>
+    <hr />
+    Type code to view diagram:
+    <div class="container">
+      <textarea name="code" id="code" cols="30" rows="10"></textarea>
+      <div id="dynamicDiagram"></div>
+    </div>
+    <pre class="mermaid">info</pre>
 
     <script type="module">
       import mermaid from '/mermaid.esm.mjs';
-      mermaid.parseError = function (err, hash) {
-        console.error('Mermaid error: ', err);
-      };
+      async function render(str) {
+        const { svg } = await mermaid.render('dynamic', str);
+        document.getElementById('dynamicDiagram').innerHTML = svg;
+      }
+      const storeKey = window.location.pathname;
+      const code = localStorage.getItem(storeKey);
+      if (code) {
+        document.getElementById('code').value = code;
+        await render(code);
+      }
       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;
+      document.getElementById('code').addEventListener('input', async (e) => {
+        const value = e.target.value;
+        localStorage.setItem(storeKey, value);
+        await render(value);
+      });
     </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/flowchart-elk.html

@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
+    <title>Mermaid Flowchart ELK Test Page</title>
+  </head>
+
+  <body>
+    <h1>Flowchart ELK</h1>
+    <pre class="mermaid">
+		flowchart-elk TD
+      A([Start]) ==> B[Step 1]
+      B ==> C{Flow 1}
+      C -- Choice 1.1 --> D[Step 2.1]
+      C -- Choice 1.3 --> I[Step 2.3]
+      C == Choice 1.2 ==> E[Step 2.2]
+      D --> F{Flow 2}
+      E ==> F{Flow 2}
+      F{Flow 2} == Choice 2.1 ==> H[Feedback node]
+      H[Feedback node] ==> B[Step 1]
+      F{Flow 2} == Choice 2.2 ==> G((Finish))
+      
+    </pre>
+
+    <script type="module">
+      import mermaid from './mermaid.esm.mjs';
+      import flowchartELK from './mermaid-flowchart-elk.esm.mjs';
+      await mermaid.registerExternalDiagrams([flowchartELK]);
+      mermaid.initialize({
+        logLevel: 3,
+      });
+    </script>
+  </body>
+</html>

demos/index.html

@@ -81,6 +81,9 @@
       <li>
         <h2><a href="./sankey.html">Sankey</a></h2>
       </li>
+      <li>
+        <h2><a href="./packet.html">Packet</a></h2>
+      </li>
       <li>
         <h2><a href="./block.html">Layered Blocks</a></h2>
       </li>

demos/packet.html

@@ -0,0 +1,141 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="utf-8" />
+    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
+    <title>Mermaid Quick Test Page</title>
+    <link rel="icon" type="image/png" href="data:image/png;base64,iVBORw0KGgo=" />
+    <style>
+      div.mermaid {
+        font-family: 'Courier New', Courier, monospace !important;
+      }
+    </style>
+  </head>
+
+  <body>
+    <h1>Packet diagram demo</h1>
+
+    <div class="diagrams">
+      <pre class="mermaid">
+      packet-beta
+        0-15: "Source Port"
+        16-31: "Destination Port"
+        32-63: "Sequence Number"
+        64-95: "Acknowledgment Number"
+        96-99: "Data Offset"
+        100-105: "Reserved"
+        106: "URG"
+        107: "ACK"
+        108: "PSH"
+        109: "RST"
+        110: "SYN"
+        111: "FIN"
+        112-127: "Window"
+        128-143: "Checksum"
+        144-159: "Urgent Pointer"
+        160-191: "(Options and Padding)"
+        192-223: "data"
+    </pre
+      >
+
+      <pre class="mermaid">
+      ---
+      config:
+        packet:
+          showBits: false
+      ---
+      packet-beta
+        0-15: "Source Port"
+        16-31: "Destination Port"
+        32-63: "Sequence Number"
+        64-95: "Acknowledgment Number"
+        96-99: "Data Offset"
+        100-105: "Reserved"
+        106: "URG"
+        107: "ACK"
+        108: "PSH"
+        109: "RST"
+        110: "SYN"
+        111: "FIN"
+        112-127: "Window"
+        128-143: "Checksum"
+        144-159: "Urgent Pointer"
+        160-191: "(Options and Padding)"
+        192-223: "data"
+    </pre
+      >
+
+      <pre class="mermaid">
+      ---
+      config:
+        theme: forest
+      ---
+      packet-beta
+        title Forest theme
+        0-15: "Source Port"
+        16-31: "Destination Port"
+        32-63: "Sequence Number"
+        64-95: "Acknowledgment Number"
+        96-99: "Data Offset"
+        100-105: "Reserved"
+        106: "URG"
+        107: "ACK"
+        108: "PSH"
+        109: "RST"
+        110: "SYN"
+        111: "FIN"
+        112-127: "Window"
+        128-143: "Checksum"
+        144-159: "Urgent Pointer"
+        160-191: "(Options and Padding)"
+        192-223: "data"
+    </pre
+      >
+
+      <pre class="mermaid" style="background-color: black">
+      ---
+      config:
+        theme: dark
+      ---
+      packet-beta
+        title Dark theme
+        0-15: "Source Port"
+        16-31: "Destination Port"
+        32-63: "Sequence Number"
+        64-95: "Acknowledgment Number"
+        96-99: "Data Offset"
+        100-105: "Reserved"
+        106: "URG"
+        107: "ACK"
+        108: "PSH"
+        109: "RST"
+        110: "SYN"
+        111: "FIN"
+        112-127: "Window"
+        128-143: "Checksum"
+        144-159: "Urgent Pointer"
+        160-191: "(Options and Padding)"
+        192-223: "data"
+    </pre
+      >
+    </div>
+    <script type="module">
+      import mermaid from '/mermaid.esm.mjs';
+      mermaid.initialize({
+        logLevel: 3,
+        securityLevel: 'loose',
+      });
+    </script>
+
+    <style>
+      .diagrams {
+        display: flex;
+        flex-wrap: wrap;
+      }
+      pre {
+        width: 45vw;
+        padding: 2em;
+      }
+    </style>
+  </body>
+</html>

demos/pie.html

@@ -50,7 +50,7 @@
     </pre>
 
     <script type="module">
-      import mermaid from './mermaid.esm.mjs';
+      import mermaid from '/mermaid.esm.mjs';
       mermaid.initialize({
         theme: 'forest',
         logLevel: 3,

docs/config/setup/interfaces/mermaidAPI.ParseOptions.md

@@ -14,6 +14,9 @@
 
 • `Optional` **suppressErrors**: `boolean`
 
+If `true`, parse will return `false` instead of throwing error when the diagram is invalid.
+The `parseError` function will not be called.
+
 #### Defined in
 
-[mermaidAPI.ts:60](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L60)
+[mermaidAPI.ts:64](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L64)

docs/config/setup/interfaces/mermaidAPI.ParseResult.md

@@ -0,0 +1,21 @@
+> **Warning**
+>
+> ## THIS IS AN AUTOGENERATED FILE. DO NOT EDIT.
+>
+> ## Please edit the corresponding file in [/packages/mermaid/src/docs/config/setup/interfaces/mermaidAPI.ParseResult.md](../../../../packages/mermaid/src/docs/config/setup/interfaces/mermaidAPI.ParseResult.md).
+
+# Interface: ParseResult
+
+[mermaidAPI](../modules/mermaidAPI.md).ParseResult
+
+## Properties
+
+### diagramType
+
+• **diagramType**: `string`
+
+The diagram type, e.g. 'flowchart', 'sequence', etc.
+
+#### Defined in
+
+[mermaidAPI.ts:71](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L71)

docs/config/setup/interfaces/mermaidAPI.RenderResult.md

@@ -39,7 +39,19 @@ bindFunctions?.(div); // To call bindFunctions only if it's present.
 
 #### Defined in
 
-[mermaidAPI.ts:80](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L80)
+[mermaidAPI.ts:94](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L94)
+
+---
+
+### diagramType
+
+• **diagramType**: `string`
+
+The diagram type, e.g. 'flowchart', 'sequence', etc.
+
+#### Defined in
+
+[mermaidAPI.ts:84](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L84)
 
 ---
 
@@ -51,4 +63,4 @@ The svg code for the rendered graph.
 
 #### Defined in
 
-[mermaidAPI.ts:70](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L70)
+[mermaidAPI.ts:80](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L80)

docs/config/setup/modules/defaultConfig.md

@@ -14,7 +14,7 @@
 
 #### Defined in
 
-[defaultConfig.ts:272](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/defaultConfig.ts#L272)
+[defaultConfig.ts:275](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/defaultConfig.ts#L275)
 
 ---
 

docs/config/setup/modules/mermaidAPI.md

@@ -9,6 +9,7 @@
 ## Interfaces
 
 - [ParseOptions](../interfaces/mermaidAPI.ParseOptions.md)
+- [ParseResult](../interfaces/mermaidAPI.ParseResult.md)
 - [RenderResult](../interfaces/mermaidAPI.RenderResult.md)
 
 ## References
@@ -25,13 +26,13 @@ Renames and re-exports [mermaidAPI](mermaidAPI.md#mermaidapi)
 
 #### Defined in
 
-[mermaidAPI.ts:64](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L64)
+[mermaidAPI.ts:74](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L74)
 
 ## Variables
 
 ### mermaidAPI
 
-• `Const` **mermaidAPI**: `Readonly`<{ `defaultConfig`: `MermaidConfig` = configApi.defaultConfig; `getConfig`: () => `MermaidConfig` = configApi.getConfig; `getDiagramFromText`: (`text`: `string`, `metadata`: `Pick`<`DiagramMetadata`, `"title"`>) => `Promise`<`Diagram`> ; `getSiteConfig`: () => `MermaidConfig` = configApi.getSiteConfig; `globalReset`: () => `void` ; `initialize`: (`options`: `MermaidConfig`) => `void` ; `parse`: (`text`: `string`, `parseOptions?`: [`ParseOptions`](../interfaces/mermaidAPI.ParseOptions.md)) => `Promise`<`boolean`> ; `render`: (`id`: `string`, `text`: `string`, `svgContainingElement?`: `Element`) => `Promise`<[`RenderResult`](../interfaces/mermaidAPI.RenderResult.md)> ; `reset`: () => `void` ; `setConfig`: (`conf`: `MermaidConfig`) => `MermaidConfig` = configApi.setConfig; `updateSiteConfig`: (`conf`: `MermaidConfig`) => `MermaidConfig` = configApi.updateSiteConfig }>
+• `Const` **mermaidAPI**: `Readonly`<{ `defaultConfig`: `MermaidConfig` = configApi.defaultConfig; `getConfig`: () => `MermaidConfig` = configApi.getConfig; `getDiagramFromText`: (`text`: `string`, `metadata`: `Pick`<`DiagramMetadata`, `"title"`>) => `Promise`<`Diagram`> ; `getSiteConfig`: () => `MermaidConfig` = configApi.getSiteConfig; `globalReset`: () => `void` ; `initialize`: (`options`: `MermaidConfig`) => `void` ; `parse`: (`text`: `string`, `parseOptions`: [`ParseOptions`](../interfaces/mermaidAPI.ParseOptions.md) & { `suppressErrors`: `true` }) => `Promise`<[`ParseResult`](../interfaces/mermaidAPI.ParseResult.md) | `false`>(`text`: `string`, `parseOptions?`: [`ParseOptions`](../interfaces/mermaidAPI.ParseOptions.md)) => `Promise`<[`ParseResult`](../interfaces/mermaidAPI.ParseResult.md)> ; `render`: (`id`: `string`, `text`: `string`, `svgContainingElement?`: `Element`) => `Promise`<[`RenderResult`](../interfaces/mermaidAPI.RenderResult.md)> ; `reset`: () => `void` ; `setConfig`: (`conf`: `MermaidConfig`) => `MermaidConfig` = configApi.setConfig; `updateSiteConfig`: (`conf`: `MermaidConfig`) => `MermaidConfig` = configApi.updateSiteConfig }>
 
 ## mermaidAPI configuration defaults
 
@@ -96,7 +97,7 @@ mermaid.initialize(config);
 
 #### Defined in
 
-[mermaidAPI.ts:607](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L607)
+[mermaidAPI.ts:622](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L622)
 
 ## Functions
 
@@ -127,7 +128,7 @@ Return the last node appended
 
 #### Defined in
 
-[mermaidAPI.ts:263](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L263)
+[mermaidAPI.ts:277](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L277)
 
 ---
 
@@ -153,7 +154,7 @@ the cleaned up svgCode
 
 #### Defined in
 
-[mermaidAPI.ts:209](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L209)
+[mermaidAPI.ts:223](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L223)
 
 ---
 
@@ -178,7 +179,7 @@ the string with all the user styles
 
 #### Defined in
 
-[mermaidAPI.ts:139](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L139)
+[mermaidAPI.ts:153](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L153)
 
 ---
 
@@ -201,7 +202,7 @@ the string with all the user styles
 
 #### Defined in
 
-[mermaidAPI.ts:186](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L186)
+[mermaidAPI.ts:200](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L200)
 
 ---
 
@@ -228,7 +229,7 @@ with an enclosing block that has each of the cssClasses followed by !important;
 
 #### Defined in
 
-[mermaidAPI.ts:124](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L124)
+[mermaidAPI.ts:138](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L138)
 
 ---
 
@@ -254,7 +255,7 @@ Put the svgCode into an iFrame. Return the iFrame code
 
 #### Defined in
 
-[mermaidAPI.ts:240](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L240)
+[mermaidAPI.ts:254](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L254)
 
 ---
 
@@ -279,4 +280,4 @@ Remove any existing elements from the given document
 
 #### Defined in
 
-[mermaidAPI.ts:313](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L313)
+[mermaidAPI.ts:327](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L327)

docs/config/usage.md

@@ -64,7 +64,7 @@ Example:
 
 ```html
 <script type="module">
-  import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@10/dist/mermaid.esm.min.mjs';
+  import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.esm.min.mjs';
 </script>
 ```
 
@@ -83,7 +83,7 @@ Example:
       B-->D(fa:fa-spinner);
     </pre>
     <script type="module">
-      import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@10/dist/mermaid.esm.min.mjs';
+      import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.esm.min.mjs';
     </script>
   </body>
 </html>
@@ -331,15 +331,17 @@ module.exports = (options) ->
 
 ## Advanced usage
 
-**Syntax validation without rendering (Work in Progress)**
+### Syntax validation without rendering
 
-The **mermaid.parse(txt)** function validates graph definitions without rendering a graph. **[This function is still a work in progress](https://github.com/mermaid-js/mermaid/issues/1066), find alternatives below.**
+The `mermaid.parse(text, parseOptions)` function validates graph definitions without rendering a graph.
 
-The function **mermaid.parse(txt)**, takes a text string as an argument and returns true if the definition follows mermaid's syntax and
-false if it does not. The parseError function will be called when the parse function returns false.
+The function `mermaid.parse(text, parseOptions)`, takes a text string as an argument and returns `{ diagramType: string }` if the definition follows mermaid's syntax.
 
-When the parser encounters invalid syntax the **mermaid.parseError** function is called. It is possible to override this
-function in order to handle the error in an application-specific way.
+If the definition is invalid, the function returns `false` if `parseOptions.suppressErrors` is set to `true`. Otherwise, it throws an error.
+
+The parseError function will be called when the parse function throws an error. It will not be called if `parseOptions.suppressErrors` is set to `true`.
+
+It is possible to override this function in order to handle the error in an application-specific way.
 
 The code-example below in meta code illustrates how this could work:
 
@@ -359,26 +361,10 @@ const textFieldUpdated = async function () {
 bindEventHandler('change', 'code', textFieldUpdated);
 ```
 
-**Alternative to mermaid.parse():**
-One effective and more future-proof method of validating your graph definitions, is to paste and render them via the [Mermaid Live Editor](https://mermaid.live/). This will ensure that your code is compliant with the syntax of Mermaid's most recent version.
-
 ## Configuration
 
-Mermaid takes a number of options which lets you tweak the rendering of the diagrams. Currently there are three ways of
-setting the options in mermaid.
-
-1.  Instantiation of the configuration using the initialize call
-2.  _Using the global mermaid object_ - **Deprecated**
-3.  _using the global mermaid_config object_ - **Deprecated**
-4.  Instantiation of the configuration using the **mermaid.init** call- **Deprecated**
-
-The list above has two ways too many of doing this. Three are deprecated and will eventually be removed. The list of
-configuration objects are described [in the mermaidAPI documentation](./setup/README.md).
-
-## Using the `mermaidAPI.initialize`/`mermaid.initialize` call
-
-The future proof way of setting the configuration is by using the initialization call to mermaid or mermaidAPI depending
-on what kind of integration you use.
+You can pass the required configuration to the `mermaid.initialize` call. This is the preferred way of configuring mermaid.
+The list of configuration objects are described [in the mermaidAPI documentation](./setup/README.md).
 
 ```html
 <script type="module">
@@ -408,35 +394,6 @@ mermaid.startOnLoad = true;
 > **Warning**
 > This way of setting the configuration is deprecated. Instead the preferred way is to use the initialize method. This functionality is only kept for backwards compatibility.
 
-## Using the mermaid_config
-
-It is possible to set some configuration via the mermaid object. The two parameters that are supported using this
-approach are:
-
-- mermaid_config.startOnLoad
-- mermaid_config.htmlLabels
-
-```javascript
-mermaid_config.startOnLoad = true;
-```
-
-> **Warning**
-> This way of setting the configuration is deprecated. Instead the preferred way is to use the initialize method. This functionality is only kept for backwards compatibility.
-
-## Using the mermaid.init call
-
-To set some configuration via the mermaid object. The two parameters that are supported using this approach are:
-
-- mermaid_config.startOnLoad
-- mermaid_config.htmlLabels
-
-```javascript
-mermaid_config.startOnLoad = true;
-```
-
-> **Warning**
-> This way of setting the configuration is deprecated. Instead the preferred way is to use the initialize method. This functionality is only kept for backwards compatibility.
-
 <!---
 cspell:locale en,en-gb
 cspell:ignore pumbaa

docs/intro/getting-started.md

@@ -224,7 +224,7 @@ b. The importing of the Mermaid library through the `mermaid.esm.mjs` or `mermai
 ```html
 <body>
   <script type="module">
-    import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@10/dist/mermaid.esm.min.mjs';
+    import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.esm.min.mjs';
     mermaid.initialize({ startOnLoad: true });
   </script>
 </body>
@@ -246,23 +246,23 @@ In this example, the `mermaidAPI` is being called through the `CDN`:
   <body>
     Here is one mermaid diagram:
     <pre class="mermaid">
-            graph TD 
-            A[Client] --> B[Load Balancer] 
-            B --> C[Server1] 
+            graph TD
+            A[Client] --> B[Load Balancer]
+            B --> C[Server1]
             B --> D[Server2]
     </pre>
 
     And here is another:
     <pre class="mermaid">
-            graph TD 
+            graph TD
             A[Client] -->|tcp_123| B
-            B(Load Balancer) 
-            B -->|tcp_456| C[Server1] 
+            B(Load Balancer)
+            B -->|tcp_456| C[Server1]
             B -->|tcp_456| D[Server2]
     </pre>
 
     <script type="module">
-      import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@10/dist/mermaid.esm.min.mjs';
+      import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.esm.min.mjs';
       mermaid.initialize({ startOnLoad: true });
     </script>
   </body>
@@ -278,15 +278,15 @@ In this example, `mermaid.js` is referenced in `src` as a separate JavaScript fi
   </head>
   <body>
     <pre class="mermaid">
-            graph LR 
-            A --- B 
-            B-->C[fa:fa-ban forbidden] 
+            graph LR
+            A --- B
+            B-->C[fa:fa-ban forbidden]
             B-->D(fa:fa-spinner);
     </pre>
     <pre class="mermaid">
-            graph TD 
-            A[Client] --> B[Load Balancer] 
-            B --> C[Server1] 
+            graph TD
+            A[Client] --> B[Load Balancer]
+            B --> C[Server1]
             B --> D[Server2]
     </pre>
     <script type="module">

docs/intro/index.md

@@ -317,7 +317,7 @@ To select a version:
 
 Replace `<version>` with the desired version number.
 
-Latest Version: <https://cdn.jsdelivr.net/npm/mermaid@10>
+Latest Version: <https://cdn.jsdelivr.net/npm/mermaid@11>
 
 ## Deploying Mermaid
 
@@ -335,7 +335,7 @@ To Deploy Mermaid:
 
 ```html
 <script type="module">
-  import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@10/dist/mermaid.esm.min.mjs';
+  import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.esm.min.mjs';
   mermaid.initialize({ startOnLoad: true });
 </script>
 ```

docs/syntax/mindmap.md

@@ -300,7 +300,7 @@ From version 9.4.0 you can simplify this code to:
 
 ```html
 <script type="module">
-  import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@10/dist/mermaid.esm.min.mjs';
+  import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.esm.min.mjs';
 </script>
 ```
 

docs/syntax/packet.md

@@ -0,0 +1,141 @@
+> **Warning**
+>
+> ## THIS IS AN AUTOGENERATED FILE. DO NOT EDIT.
+>
+> ## Please edit the corresponding file in [/packages/mermaid/src/docs/syntax/packet.md](../../packages/mermaid/src/docs/syntax/packet.md).
+
+# Packet Diagram (v\<MERMAID_RELEASE_VERSION>+)
+
+## Introduction
+
+A packet diagram is a visual representation used to illustrate the structure and contents of a network packet. Network packets are the fundamental units of data transferred over a network.
+
+## Usage
+
+This diagram type is particularly useful for network engineers, educators, and students who require a clear and concise way to represent the structure of network packets.
+
+## Syntax
+
+```md
+packet-beta
+start: "Block name" %% Single-bit block
+start-end: "Block name" %% Multi-bit blocks
+... More Fields ...
+```
+
+## Examples
+
+```mermaid-example
+---
+title: "TCP Packet"
+---
+packet-beta
+0-15: "Source Port"
+16-31: "Destination Port"
+32-63: "Sequence Number"
+64-95: "Acknowledgment Number"
+96-99: "Data Offset"
+100-105: "Reserved"
+106: "URG"
+107: "ACK"
+108: "PSH"
+109: "RST"
+110: "SYN"
+111: "FIN"
+112-127: "Window"
+128-143: "Checksum"
+144-159: "Urgent Pointer"
+160-191: "(Options and Padding)"
+192-255: "Data (variable length)"
+```
+
+```mermaid
+---
+title: "TCP Packet"
+---
+packet-beta
+0-15: "Source Port"
+16-31: "Destination Port"
+32-63: "Sequence Number"
+64-95: "Acknowledgment Number"
+96-99: "Data Offset"
+100-105: "Reserved"
+106: "URG"
+107: "ACK"
+108: "PSH"
+109: "RST"
+110: "SYN"
+111: "FIN"
+112-127: "Window"
+128-143: "Checksum"
+144-159: "Urgent Pointer"
+160-191: "(Options and Padding)"
+192-255: "Data (variable length)"
+```
+
+```mermaid-example
+packet-beta
+title UDP Packet
+0-15: "Source Port"
+16-31: "Destination Port"
+32-47: "Length"
+48-63: "Checksum"
+64-95: "Data (variable length)"
+```
+
+```mermaid
+packet-beta
+title UDP Packet
+0-15: "Source Port"
+16-31: "Destination Port"
+32-47: "Length"
+48-63: "Checksum"
+64-95: "Data (variable length)"
+```
+
+## Details of Syntax
+
+- **Ranges**: Each line after the title represents a different field in the packet. The range (e.g., `0-15`) indicates the bit positions in the packet.
+- **Field Description**: A brief description of what the field represents, enclosed in quotes.
+
+## Configuration
+
+Please refer to the [configuration](/config/schema-docs/config-defs-packet-diagram-config.html) guide for details.
+
+<!--
+
+Theme variables are not currently working due to a mermaid bug. The passed values are not being propagated into styles function.
+
+## Theme Variables
+
+| Property         | Description                | Default Value |
+| ---------------- | -------------------------- | ------------- |
+| byteFontSize     | Font size of the bytes     | '10px'        |
+| startByteColor   | Color of the starting byte | 'black'       |
+| endByteColor     | Color of the ending byte   | 'black'       |
+| labelColor       | Color of the labels        | 'black'       |
+| labelFontSize    | Font size of the labels    | '12px'        |
+| titleColor       | Color of the title         | 'black'       |
+| titleFontSize    | Font size of the title     | '14px'        |
+| blockStrokeColor | Color of the block stroke  | 'black'       |
+| blockStrokeWidth | Width of the block stroke  | '1'           |
+| blockFillColor   | Fill color of the block    | '#efefef'     |
+
+## Example on config and theme
+
+```mermaid-example
+---
+config:
+  packet:
+    showBits: true
+  themeVariables:
+    packet:
+      startByteColor: red
+---
+packet-beta
+0-15: "Source Port"
+16-31: "Destination Port"
+32-63: "Sequence Number"
+```
+
+-->

docs/syntax/timeline.md

@@ -469,7 +469,7 @@ You can use this method to add mermaid including the timeline diagram to a web p
 
 ```html
 <script type="module">
-  import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@10/dist/mermaid.esm.min.mjs';
+  import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@11/dist/mermaid.esm.min.mjs';
 </script>
 ```
 

netlify.toml

@@ -7,9 +7,9 @@
   base = ""
 
   # Directory that contains the deploy-ready HTML files and
-  # assets generated by the build. This is an absolute path relative 
+  # assets generated by the build. This is an absolute path relative
   # to the base directory, which is the root by default (/).
-  # This sample publishes the directory located at the absolute 
+  # This sample publishes the directory located at the absolute
   # path "root/project/build-output"
 
   publish = "mermaid-live-editor/docs"

package.json

@@ -15,15 +15,15 @@
     "git graph"
   ],
   "scripts": {
-    "build:vite": "tsx .vite/build.ts",
-    "build:mermaid": "pnpm build:vite --mermaid",
-    "build:viz": "pnpm build:mermaid --visualize",
-    "build:types": "tsc -p ./packages/mermaid/tsconfig.json --emitDeclarationOnly && tsc -p ./packages/mermaid-zenuml/tsconfig.json --emitDeclarationOnly && tsc -p ./packages/mermaid-example-diagram/tsconfig.json --emitDeclarationOnly",
+    "build": "pnpm build:esbuild && pnpm build:types",
+    "build:esbuild": "pnpm run -r clean && tsx .esbuild/build.ts",
+    "build:mermaid": "pnpm build:esbuild --mermaid",
+    "build:viz": "pnpm build:esbuild --visualize",
+    "build:types": "tsx .build/types.ts",
     "build:types:watch": "tsc -p ./packages/mermaid/tsconfig.json --emitDeclarationOnly --watch",
-    "build:watch": "pnpm build:vite --watch",
-    "build": "pnpm run -r clean && pnpm build:types && pnpm build:vite",
-    "dev": "concurrently \"pnpm build:vite --watch\" \"tsx .vite/server.ts\"",
-    "dev:coverage": "pnpm coverage:cypress:clean && VITE_COVERAGE=true pnpm dev",
+    "dev": "tsx .esbuild/server.ts",
+    "dev:vite": "tsx .vite/server.ts",
+    "dev:coverage": "pnpm coverage:cypress:clean && VITE_COVERAGE=true pnpm dev:vite",
     "release": "pnpm build",
     "lint": "eslint --cache --cache-strategy content --ignore-path .gitignore . && pnpm lint:jison && prettier --cache --check .",
     "lint:fix": "eslint --cache --cache-strategy content --fix --ignore-path .gitignore . && prettier --write . && tsx scripts/fixCSpell.ts",
@@ -32,8 +32,8 @@
     "cypress": "cypress run",
     "cypress:open": "cypress open",
     "e2e": "start-server-and-test dev http://localhost:9000/ cypress",
+    "e2e:coverage": "start-server-and-test dev:coverage http://localhost:9000/ cypress",
     "coverage:cypress:clean": "rimraf .nyc_output coverage/cypress",
-    "e2e:coverage": "pnpm coverage:cypress:clean && VITE_COVERAGE=true pnpm e2e",
     "coverage:merge": "tsx scripts/coverage.ts",
     "coverage": "pnpm test:coverage --run && pnpm e2e:coverage && pnpm coverage:merge",
     "ci": "vitest run",
@@ -74,7 +74,7 @@
     "@types/jsdom": "^21.1.1",
     "@types/lodash": "^4.14.194",
     "@types/mdast": "^3.0.11",
-    "@types/node": "^20.11.10",
+    "@types/node": "^20.11.17",
     "@types/prettier": "^2.7.2",
     "@types/rollup-plugin-visualizer": "^4.2.1",
     "@typescript-eslint/eslint-plugin": "^6.7.2",
@@ -83,6 +83,7 @@
     "@vitest/spy": "^0.34.0",
     "@vitest/ui": "^0.34.0",
     "ajv": "^8.12.0",
+    "chokidar": "^3.5.3",
     "concurrently": "^8.0.1",
     "cors": "^2.8.5",
     "cspell": "^8.3.2",
@@ -108,6 +109,7 @@
     "jison": "^0.4.18",
     "js-yaml": "^4.1.0",
     "jsdom": "^22.0.0",
+    "langium-cli": "3.0.1",
     "lint-staged": "^13.2.1",
     "nyc": "^15.1.0",
     "path-browserify": "^1.0.1",

packages/mermaid-flowchart-elk/package.json

@@ -0,0 +1,45 @@
+{
+  "name": "@mermaid-js/flowchart-elk",
+  "version": "1.0.0-rc.1",
+  "description": "Flowchart plugin for mermaid with ELK layout",
+  "module": "dist/mermaid-flowchart-elk.core.mjs",
+  "types": "dist/packages/mermaid-flowchart-elk/src/detector.d.ts",
+  "type": "module",
+  "exports": {
+    ".": {
+      "import": "./dist/mermaid-flowchart-elk.core.mjs",
+      "types": "./dist/packages/mermaid-flowchart-elk/src/detector.d.ts"
+    },
+    "./*": "./*"
+  },
+  "keywords": [
+    "diagram",
+    "markdown",
+    "flowchart",
+    "elk",
+    "mermaid"
+  ],
+  "scripts": {
+    "prepublishOnly": "pnpm -w run build"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/mermaid-js/mermaid"
+  },
+  "author": "Knut Sveidqvist",
+  "license": "MIT",
+  "dependencies": {
+    "d3": "^7.4.0",
+    "dagre-d3-es": "7.0.10",
+    "khroma": "^2.0.0",
+    "elkjs": "^0.8.2"
+  },
+  "devDependencies": {
+    "concurrently": "^8.0.0",
+    "rimraf": "^5.0.0",
+    "mermaid": "workspace:^"
+  },
+  "files": [
+    "dist"
+  ]
+}

packages/mermaid-flowchart-elk/src/detector.ts

@@ -0,0 +1,32 @@
+import type {
+  ExternalDiagramDefinition,
+  DiagramDetector,
+  DiagramLoader,
+} from '../../mermaid/src/diagram-api/types.js';
+
+const id = 'flowchart-elk';
+
+const detector: DiagramDetector = (txt, config): boolean => {
+  if (
+    // If diagram explicitly states flowchart-elk
+    /^\s*flowchart-elk/.test(txt) ||
+    // If a flowchart/graph diagram has their default renderer set to elk
+    (/^\s*flowchart|graph/.test(txt) && config?.flowchart?.defaultRenderer === 'elk')
+  ) {
+    return true;
+  }
+  return false;
+};
+
+const loader: DiagramLoader = async () => {
+  const { diagram } = await import('./diagram-definition.js');
+  return { id, diagram };
+};
+
+const plugin: ExternalDiagramDefinition = {
+  id,
+  detector,
+  loader,
+};
+
+export default plugin;

packages/mermaid-flowchart-elk/src/diagram-definition.ts

@@ -0,0 +1,12 @@
+// @ts-ignore: JISON typing missing
+import parser from '../../mermaid/src/diagrams/flowchart/parser/flow.jison';
+import * as db from '../../mermaid/src/diagrams/flowchart/flowDb.js';
+import styles from '../../mermaid/src/diagrams/flowchart/styles.js';
+import renderer from './flowRenderer-elk.js';
+
+export const diagram = {
+  db,
+  renderer,
+  parser,
+  styles,
+};

packages/mermaid-flowchart-elk/src/flowRenderer-elk.js

@@ -1,17 +1,17 @@
 import { select, line, curveLinear } from 'd3';
-import { insertNode } from '../../../dagre-wrapper/nodes.js';
-import insertMarkers from '../../../dagre-wrapper/markers.js';
-import { insertEdgeLabel } from '../../../dagre-wrapper/edges.js';
+import { insertNode } from '../../mermaid/src/dagre-wrapper/nodes.js';
+import insertMarkers from '../../mermaid/src/dagre-wrapper/markers.js';
+import { insertEdgeLabel } from '../../mermaid/src/dagre-wrapper/edges.js';
 import { findCommonAncestor } from './render-utils.js';
-import { labelHelper } from '../../../dagre-wrapper/shapes/util.js';
-import { getConfig } from '../../../config.js';
-import { log } from '../../../logger.js';
-import { setupGraphViewbox } from '../../../setupGraphViewbox.js';
-import common from '../../common/common.js';
-import { interpolateToCurve, getStylesFromArray } from '../../../utils.js';
+import { labelHelper } from '../../mermaid/src/dagre-wrapper/shapes/util.js';
+import { getConfig } from '../../mermaid/src/config.js';
+import { log } from '../../mermaid/src/logger.js';
+import { setupGraphViewbox } from '../../mermaid/src/setupGraphViewbox.js';
+import common from '../../mermaid/src/diagrams/common/common.js';
+import { interpolateToCurve, getStylesFromArray } from '../../mermaid/src/utils.js';
 import ELK from 'elkjs/lib/elk.bundled.js';
-import { getLineFunctionsWithOffset } from '../../../utils/lineWithOffset.js';
-import { addEdgeMarkers } from '../../../dagre-wrapper/edgeMarker.js';
+import { getLineFunctionsWithOffset } from '../../mermaid/src/utils/lineWithOffset.js';
+import { addEdgeMarkers } from '../../mermaid/src/dagre-wrapper/edgeMarker.js';
 
 const elk = new ELK();
 
@@ -594,7 +594,7 @@ const addMarkersToEdge = function (svgPath, edgeData, diagramType, arrowMarkerAb
  *
  * @param text
  * @param diagObj
- * @returns {Record<string, import('../../../diagram-api/types.js').DiagramStyleClassDef>} ClassDef styles
+ * @returns {Record<string, import('../../mermaid/src/diagram-api/types.js').DiagramStyleClassDef>} ClassDef styles
  */
 export const getClasses = function (text, diagObj) {
   log.info('Extracting classes');

packages/mermaid-flowchart-elk/tsconfig.json

@@ -0,0 +1,10 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "rootDir": "../..",
+    "outDir": "./dist",
+    "types": ["vitest/importMeta", "vitest/globals"]
+  },
+  "include": ["./src/**/*.ts"],
+  "typeRoots": ["./src/types"]
+}

packages/mermaid-zenuml/package.json

@@ -19,6 +19,7 @@
     "mermaid"
   ],
   "scripts": {
+    "clean": "rimraf dist",
     "prepublishOnly": "pnpm -w run build"
   },
   "repository": {

packages/mermaid-zenuml/src/parser.ts

@@ -5,7 +5,6 @@
  * This is a dummy parser that satisfies the mermaid API logic.
  */
 export default {
-  parser: { yy: {} },
   parse: () => {
     // no op
   },

packages/mermaid/package.json

@@ -1,6 +1,6 @@
 {
   "name": "mermaid",
-  "version": "10.8.0",
+  "version": "11.0.0-alpha.6",
   "description": "Markdown-ish syntax for generating flowcharts, sequence diagrams, class diagrams, gantt charts and git graphs.",
   "type": "module",
   "module": "./dist/mermaid.core.mjs",
@@ -60,8 +60,7 @@
   },
   "dependencies": {
     "@braintree/sanitize-url": "^6.0.1",
-    "@types/d3-scale": "^4.0.3",
-    "@types/d3-scale-chromatic": "^3.0.0",
+    "@mermaid-js/parser": "workspace:^",
     "cytoscape": "^3.28.1",
     "cytoscape-cose-bilkent": "^4.1.0",
     "d3": "^7.4.0",
@@ -74,11 +73,9 @@
     "khroma": "^2.0.0",
     "lodash-es": "^4.17.21",
     "mdast-util-from-markdown": "^1.3.0",
-    "non-layered-tidy-tree-layout": "^2.0.2",
     "stylis": "^4.1.3",
     "ts-dedent": "^2.2.0",
-    "uuid": "^9.0.0",
-    "web-worker": "^1.2.0"
+    "uuid": "^9.0.0"
   },
   "devDependencies": {
     "@adobe/jsonschema2md": "^7.1.4",
@@ -86,6 +83,7 @@
     "@types/d3": "^7.4.0",
     "@types/d3-sankey": "^0.12.1",
     "@types/d3-scale": "^4.0.3",
+    "@types/d3-scale-chromatic": "^3.0.0",
     "@types/d3-selection": "^3.0.5",
     "@types/d3-shape": "^3.1.1",
     "@types/dompurify": "^3.0.2",

packages/mermaid/scripts/create-types-from-json-schema.mts

@@ -233,6 +233,23 @@ async function generateTypescript(mermaidConfigSchema: JSONSchemaType<MermaidCon
   }
 }
 
+/**
+ * Workaround for type duplication when a $ref property has siblings.
+ *
+ * @param json - The input JSON object.
+ *
+ * @see https://github.com/bcherny/json-schema-to-typescript/issues/193
+ */
+function removeProp(json: any, name: string) {
+  for (const prop in json) {
+    if (prop === name) {
+      delete json[prop];
+    } else if (typeof json[prop] === 'object') {
+      removeProp(json[prop], name);
+    }
+  }
+}
+
 /** Main function */
 async function main() {
   if (verifyOnly) {
@@ -243,6 +260,8 @@ async function main() {
 
   const configJsonSchema = await loadJsonSchemaFromYaml();
 
+  removeProp(configJsonSchema, 'default');
+
   validateSchema(configJsonSchema);
 
   // Generate types from JSON Schema

packages/mermaid/src/Diagram.ts

@@ -1,10 +1,8 @@
 import * as configApi from './config.js';
-import { log } from './logger.js';
 import { getDiagram, registerDiagram } from './diagram-api/diagramAPI.js';
 import { detectType, getDiagramLoader } from './diagram-api/detectType.js';
 import { UnknownDiagramError } from './errors.js';
 import { encodeEntities } from './utils.js';
-
 import type { DetailedError } from './utils.js';
 import type { DiagramDefinition, DiagramMetadata } from './diagram-api/types.js';
 
@@ -15,48 +13,45 @@ export type ParseErrorFunction = (err: string | DetailedError | unknown, hash?:
  * @privateRemarks This is exported as part of the public mermaidAPI.
  */
 export class Diagram {
-  type = 'graph';
-  parser: DiagramDefinition['parser'];
-  renderer: DiagramDefinition['renderer'];
-  db: DiagramDefinition['db'];
-  private init?: DiagramDefinition['init'];
-
-  private detectError?: UnknownDiagramError;
-  constructor(public text: string, public metadata: Pick<DiagramMetadata, 'title'> = {}) {
-    this.text = encodeEntities(text);
-    this.text += '\n';
-    const cnf = configApi.getConfig();
-    try {
-      this.type = detectType(text, cnf);
-    } catch (e) {
-      this.type = 'error';
-      this.detectError = e as UnknownDiagramError;
-    }
-    const diagram = getDiagram(this.type);
-    log.debug('Type ' + this.type);
-    // Setup diagram
-    this.db = diagram.db;
-    this.renderer = diagram.renderer;
-    this.parser = diagram.parser;
-    this.parser.parser.yy = this.db;
-    this.init = diagram.init;
-    this.parse();
-  }
-
-  parse() {
-    if (this.detectError) {
-      throw this.detectError;
-    }
-    this.db.clear?.();
+  public static async fromText(text: string, metadata: Pick<DiagramMetadata, 'title'> = {}) {
     const config = configApi.getConfig();
-    this.init?.(config);
-    // This block was added for legacy compatibility. Use frontmatter instead of adding more special cases.
-    if (this.metadata.title) {
-      this.db.setDiagramTitle?.(this.metadata.title);
+    const type = detectType(text, config);
+    text = encodeEntities(text) + '\n';
+    try {
+      getDiagram(type);
+    } catch (e) {
+      const loader = getDiagramLoader(type);
+      if (!loader) {
+        throw new UnknownDiagramError(`Diagram ${type} not found.`);
+      }
+      // Diagram not available, loading it.
+      // new diagram will try getDiagram again and if fails then it is a valid throw
+      const { id, diagram } = await loader();
+      registerDiagram(id, diagram);
     }
-    this.parser.parse(this.text);
+    const { db, parser, renderer, init } = getDiagram(type);
+    if (parser.parser) {
+      // The parser.parser.yy is only present in JISON parsers. So, we'll only set if required.
+      parser.parser.yy = db;
+    }
+    db.clear?.();
+    init?.(config);
+    // This block was added for legacy compatibility. Use frontmatter instead of adding more special cases.
+    if (metadata.title) {
+      db.setDiagramTitle?.(metadata.title);
+    }
+    await parser.parse(text);
+    return new Diagram(type, text, db, parser, renderer);
   }
 
+  private constructor(
+    public type: string,
+    public text: string,
+    public db: DiagramDefinition['db'],
+    public parser: DiagramDefinition['parser'],
+    public renderer: DiagramDefinition['renderer']
+  ) {}
+
   async render(id: string, version: string) {
     await this.renderer.draw(this.text, id, version, this);
   }
@@ -69,34 +64,3 @@ export class Diagram {
     return this.type;
   }
 }
-
-/**
- * Parse the text asynchronously and generate a Diagram object asynchronously.
- * **Warning:** This function may be changed in the future.
- * @alpha
- * @param text - The mermaid diagram definition.
- * @param metadata - Diagram metadata, defined in YAML.
- * @returns A the Promise of a Diagram object.
- * @throws {@link UnknownDiagramError} if the diagram type can not be found.
- * @privateRemarks This is exported as part of the public mermaidAPI.
- */
-export const getDiagramFromText = async (
-  text: string,
-  metadata: Pick<DiagramMetadata, 'title'> = {}
-): Promise<Diagram> => {
-  const type = detectType(text, configApi.getConfig());
-  try {
-    // Trying to find the diagram
-    getDiagram(type);
-  } catch (error) {
-    const loader = getDiagramLoader(type);
-    if (!loader) {
-      throw new UnknownDiagramError(`Diagram ${type} not found.`);
-    }
-    // Diagram not available, loading it.
-    // new diagram will try getDiagram again and if fails then it is a valid throw
-    const { id, diagram } = await loader();
-    registerDiagram(id, diagram);
-  }
-  return new Diagram(text, metadata);
-};

packages/mermaid/src/config.type.ts

@@ -61,7 +61,7 @@ export interface MermaidConfig {
    * You may also use `themeCSS` to override this value.
    *
    */
-  theme?: string | 'default' | 'forest' | 'dark' | 'neutral' | 'null';
+  theme?: 'default' | 'forest' | 'dark' | 'neutral' | 'null';
   themeVariables?: any;
   themeCSS?: string;
   /**
@@ -87,26 +87,11 @@ export interface MermaidConfig {
    * This option decides the amount of logging to be used by mermaid.
    *
    */
-  logLevel?:
-    | number
-    | string
-    | 0
-    | 2
-    | 1
-    | 'trace'
-    | 'debug'
-    | 'info'
-    | 'warn'
-    | 'error'
-    | 'fatal'
-    | 3
-    | 4
-    | 5
-    | undefined;
+  logLevel?: 'trace' | 0 | 'debug' | 1 | 'info' | 2 | 'warn' | 3 | 'error' | 4 | 'fatal' | 5;
   /**
    * Level of trust for parsed diagram
    */
-  securityLevel?: string | 'strict' | 'loose' | 'antiscript' | 'sandbox' | undefined;
+  securityLevel?: 'strict' | 'loose' | 'antiscript' | 'sandbox';
   /**
    * Dictates whether mermaid starts on Page load
    */
@@ -169,19 +154,43 @@ export interface MermaidConfig {
   gitGraph?: GitGraphDiagramConfig;
   c4?: C4DiagramConfig;
   sankey?: SankeyDiagramConfig;
+  packet?: PacketDiagramConfig;
   block?: BlockDiagramConfig;
   dompurifyConfig?: DOMPurifyConfiguration;
   wrap?: boolean;
   fontSize?: number;
 }
 /**
- * The object containing configurations specific for block diagrams.
+ * The object containing configurations specific for packet diagrams.
  *
  * This interface was referenced by `MermaidConfig`'s JSON-Schema
- * via the `definition` "BlockDiagramConfig".
+ * via the `definition` "PacketDiagramConfig".
  */
-export interface BlockDiagramConfig extends BaseDiagramConfig {
-  padding?: number;
+export interface PacketDiagramConfig extends BaseDiagramConfig {
+  /**
+   * The height of each row in the packet diagram.
+   */
+  rowHeight?: number;
+  /**
+   * The width of each bit in the packet diagram.
+   */
+  bitWidth?: number;
+  /**
+   * The number of bits to display per row.
+   */
+  bitsPerRow?: number;
+  /**
+   * Toggle to display or hide bit numbers.
+   */
+  showBits?: boolean;
+  /**
+   * The horizontal padding between the blocks in a row.
+   */
+  paddingX?: number;
+  /**
+   * The vertical padding between the rows.
+   */
+  paddingY?: number;
 }
 /**
  * This interface was referenced by `MermaidConfig`'s JSON-Schema
@@ -197,6 +206,15 @@ export interface BaseDiagramConfig {
    */
   useMaxWidth?: boolean;
 }
+/**
+ * The object containing configurations specific for block diagrams.
+ *
+ * This interface was referenced by `MermaidConfig`'s JSON-Schema
+ * via the `definition` "BlockDiagramConfig".
+ */
+export interface BlockDiagramConfig extends BaseDiagramConfig {
+  padding?: number;
+}
 /**
  * The object containing configurations specific for c4 diagrams
  *
@@ -807,8 +825,8 @@ export interface XYChartConfig extends BaseDiagramConfig {
    * Should show the chart title
    */
   showTitle?: boolean;
-  xAxis?: XYChartAxisConfig1;
-  yAxis?: XYChartAxisConfig2;
+  xAxis?: XYChartAxisConfig;
+  yAxis?: XYChartAxisConfig;
   /**
    * How to plot will be drawn horizontal or vertical
    */
@@ -818,104 +836,6 @@ export interface XYChartConfig extends BaseDiagramConfig {
    */
   plotReservedSpacePercent?: number;
 }
-/**
- * This object contains configuration for XYChart axis config
- */
-export interface XYChartAxisConfig1 {
-  /**
-   * Should show the axis labels (tick text)
-   */
-  showLabel?: boolean;
-  /**
-   * font size of the axis labels (tick text)
-   */
-  labelFontSize?: number;
-  /**
-   * top and bottom space from axis label (tick text)
-   */
-  labelPadding?: number;
-  /**
-   * Should show the axis title
-   */
-  showTitle?: boolean;
-  /**
-   * font size of the axis title
-   */
-  titleFontSize?: number;
-  /**
-   * top and bottom space from axis title
-   */
-  titlePadding?: number;
-  /**
-   * Should show the axis tick lines
-   */
-  showTick?: boolean;
-  /**
-   * length of the axis tick lines
-   */
-  tickLength?: number;
-  /**
-   * width of the axis tick lines
-   */
-  tickWidth?: number;
-  /**
-   * Show line across the axis
-   */
-  showAxisLine?: boolean;
-  /**
-   * Width of the axis line
-   */
-  axisLineWidth?: number;
-}
-/**
- * This object contains configuration for XYChart axis config
- */
-export interface XYChartAxisConfig2 {
-  /**
-   * Should show the axis labels (tick text)
-   */
-  showLabel?: boolean;
-  /**
-   * font size of the axis labels (tick text)
-   */
-  labelFontSize?: number;
-  /**
-   * top and bottom space from axis label (tick text)
-   */
-  labelPadding?: number;
-  /**
-   * Should show the axis title
-   */
-  showTitle?: boolean;
-  /**
-   * font size of the axis title
-   */
-  titleFontSize?: number;
-  /**
-   * top and bottom space from axis title
-   */
-  titlePadding?: number;
-  /**
-   * Should show the axis tick lines
-   */
-  showTick?: boolean;
-  /**
-   * length of the axis tick lines
-   */
-  tickLength?: number;
-  /**
-   * width of the axis tick lines
-   */
-  tickWidth?: number;
-  /**
-   * Show line across the axis
-   */
-  showAxisLine?: boolean;
-  /**
-   * Width of the axis line
-   */
-  axisLineWidth?: number;
-}
 /**
  * The object containing configurations specific for entity relationship diagrams
  *
@@ -936,7 +856,7 @@ export interface ErDiagramConfig extends BaseDiagramConfig {
   /**
    * Directional bias for layout of entities
    */
-  layoutDirection?: string | 'TB' | 'BT' | 'LR' | 'RL';
+  layoutDirection?: 'TB' | 'BT' | 'LR' | 'RL';
   /**
    * The minimum width of an entity box. Expressed in pixels.
    */
@@ -1001,7 +921,7 @@ export interface StateDiagramConfig extends BaseDiagramConfig {
    * Decides which rendering engine that is to be used for the rendering.
    *
    */
-  defaultRenderer?: string | 'dagre-d3' | 'dagre-wrapper' | 'elk';
+  defaultRenderer?: 'dagre-d3' | 'dagre-wrapper' | 'elk';
 }
 /**
  * This interface was referenced by `MermaidConfig`'s JSON-Schema
@@ -1025,7 +945,7 @@ export interface ClassDiagramConfig extends BaseDiagramConfig {
    * Decides which rendering engine that is to be used for the rendering.
    *
    */
-  defaultRenderer?: string | 'dagre-d3' | 'dagre-wrapper' | 'elk';
+  defaultRenderer?: 'dagre-d3' | 'dagre-wrapper' | 'elk';
   nodeSpacing?: number;
   rankSpacing?: number;
   /**
@@ -1085,7 +1005,7 @@ export interface JourneyDiagramConfig extends BaseDiagramConfig {
   /**
    * Multiline message alignment
    */
-  messageAlign?: string | 'left' | 'center' | 'right';
+  messageAlign?: 'left' | 'center' | 'right';
   /**
    * Prolongs the edge of the diagram downwards.
    *
@@ -1164,7 +1084,7 @@ export interface TimelineDiagramConfig extends BaseDiagramConfig {
   /**
    * Multiline message alignment
    */
-  messageAlign?: string | 'left' | 'center' | 'right';
+  messageAlign?: 'left' | 'center' | 'right';
   /**
    * Prolongs the edge of the diagram downwards.
    *
@@ -1275,7 +1195,7 @@ export interface GanttDiagramConfig extends BaseDiagramConfig {
    * Controls the display mode.
    *
    */
-  displayMode?: string | 'compact';
+  displayMode?: '' | 'compact';
   /**
    * On which day a week-based interval should start
    *
@@ -1334,7 +1254,7 @@ export interface SequenceDiagramConfig extends BaseDiagramConfig {
   /**
    * Multiline message alignment
    */
-  messageAlign?: string | 'left' | 'center' | 'right';
+  messageAlign?: 'left' | 'center' | 'right';
   /**
    * Mirror actors under diagram
    *
@@ -1391,7 +1311,7 @@ export interface SequenceDiagramConfig extends BaseDiagramConfig {
   /**
    * This sets the text alignment of actor-attached notes
    */
-  noteAlign?: string | 'left' | 'center' | 'right';
+  noteAlign?: 'left' | 'center' | 'right';
   /**
    * This sets the font size of actor messages
    */
@@ -1475,7 +1395,7 @@ export interface FlowchartDiagramConfig extends BaseDiagramConfig {
    * Defines how mermaid renders curves for flowcharts.
    *
    */
-  curve?: string | 'basis' | 'linear' | 'cardinal';
+  curve?: 'basis' | 'linear' | 'cardinal';
   /**
    * Represents the padding between the labels and the shape
    *
@@ -1487,7 +1407,7 @@ export interface FlowchartDiagramConfig extends BaseDiagramConfig {
    * Decides which rendering engine that is to be used for the rendering.
    *
    */
-  defaultRenderer?: string | 'dagre-d3' | 'dagre-wrapper' | 'elk';
+  defaultRenderer?: 'dagre-d3' | 'dagre-wrapper' | 'elk';
   /**
    * Width of nodes where text is wrapped.
    *
@@ -1511,13 +1431,7 @@ export interface SankeyDiagramConfig extends BaseDiagramConfig {
    *
    */
   linkColor?: SankeyLinkColor | string;
-  /**
-   * Controls the alignment of the Sankey diagrams.
-   *
-   * See <https://github.com/d3/d3-sankey#alignments>.
-   *
-   */
-  nodeAlignment?: 'left' | 'right' | 'center' | 'justify';
+  nodeAlignment?: SankeyNodeAlignment;
   useMaxWidth?: boolean;
   /**
    * Toggle to display or hide values along with title.

packages/mermaid/src/defaultConfig.ts

@@ -257,6 +257,9 @@ const config: RequiredDeep<MermaidConfig> = {
     // TODO: can we make this default to `true` instead?
     useMaxWidth: false,
   },
+  packet: {
+    ...defaultConfigJson.packet,
+  },
 };
 
 const keyify = (obj: any, prefix = ''): string[] =>

packages/mermaid/src/diagram-api/detectType.ts

@@ -71,10 +71,9 @@ export const registerLazyLoadedDiagrams = (...diagrams: ExternalDiagramDefinitio
 
 export const addDetector = (key: string, detector: DiagramDetector, loader?: DiagramLoader) => {
   if (detectors[key]) {
-    log.error(`Detector with key ${key} already exists`);
-  } else {
-    detectors[key] = { detector, loader };
+    log.warn(`Detector with key ${key} already exists. Overwriting.`);
   }
+  detectors[key] = { detector, loader };
   log.debug(`Detector with key ${key} added${loader ? ' with loader' : ''}`);
 };
 

packages/mermaid/src/diagram-api/diagram-orchestration.ts

@@ -20,6 +20,7 @@ import flowchartElk from '../diagrams/flowchart/elk/detector.js';
 import timeline from '../diagrams/timeline/detector.js';
 import mindmap from '../diagrams/mindmap/detector.js';
 import sankey from '../diagrams/sankey/sankeyDetector.js';
+import { packet } from '../diagrams/packet/detector.js';
 import block from '../diagrams/block/blockDetector.js';
 import { registerLazyLoadedDiagrams } from './detectType.js';
 import { registerDiagram } from './diagramAPI.js';
@@ -51,7 +52,6 @@ export const addDiagrams = () => {
         },
       },
       parser: {
-        parser: { yy: {} },
         parse: () => {
           throw new Error(
             'Diagrams beginning with --- are not valid. ' +
@@ -88,6 +88,7 @@ export const addDiagrams = () => {
     journey,
     quadrantChart,
     sankey,
+    packet,
     xychart,
     block
   );

packages/mermaid/src/diagram-api/diagramAPI.spec.ts

@@ -2,12 +2,12 @@ import { detectType } from './detectType.js';
 import { getDiagram, registerDiagram } from './diagramAPI.js';
 import { addDiagrams } from './diagram-orchestration.js';
 import type { DiagramDetector } from './types.js';
-import { getDiagramFromText } from '../Diagram.js';
+import { Diagram } from '../Diagram.js';
 import { it, describe, expect, beforeAll } from 'vitest';
 
 addDiagrams();
 beforeAll(async () => {
-  await getDiagramFromText('sequenceDiagram');
+  await Diagram.fromText('sequenceDiagram');
 });
 
 describe('DiagramAPI', () => {
@@ -39,7 +39,6 @@ describe('DiagramAPI', () => {
           parse: (_text) => {
             return;
           },
-          parser: { yy: {} },
         },
         renderer: {
           draw: () => {

packages/mermaid/src/diagram-api/diagramAPI.ts

@@ -49,7 +49,7 @@ export const registerDiagram = (
   detector?: DiagramDetector
 ) => {
   if (diagrams[id]) {
-    throw new Error(`Diagram ${id} already registered.`);
+    log.warn(`Diagram with id ${id} already registered. Overwriting.`);
   }
   diagrams[id] = diagram;
   if (detector) {

packages/mermaid/src/diagram-api/frontmatter.ts

@@ -1,4 +1,4 @@
-import type { MermaidConfig } from '../config.type.js';
+import type { GanttDiagramConfig, MermaidConfig } from '../config.type.js';
 import { frontMatterRegex } from './regexes.js';
 // The "* as yaml" part is necessary for tree-shaking
 import * as yaml from 'js-yaml';
@@ -6,7 +6,7 @@ import * as yaml from 'js-yaml';
 interface FrontMatterMetadata {
   title?: string;
   // Allows custom display modes. Currently used for compact mode in gantt charts.
-  displayMode?: string;
+  displayMode?: GanttDiagramConfig['displayMode'];
   config?: MermaidConfig;
 }
 
@@ -44,7 +44,7 @@ export function extractFrontMatter(text: string): FrontMatterResult {
 
   // Only add properties that are explicitly supported, if they exist
   if (parsed.displayMode) {
-    metadata.displayMode = parsed.displayMode.toString();
+    metadata.displayMode = parsed.displayMode.toString() as GanttDiagramConfig['displayMode'];
   }
   if (parsed.title) {
     metadata.title = parsed.title.toString();

packages/mermaid/src/diagram-api/types.ts

@@ -1,7 +1,8 @@
 /* eslint-disable @typescript-eslint/no-explicit-any */
+import type * as d3 from 'd3';
+import type { SetRequired } from 'type-fest';
 import type { Diagram } from '../Diagram.js';
 import type { BaseDiagramConfig, MermaidConfig } from '../config.type.js';
-import type * as d3 from 'd3';
 
 export interface DiagramMetadata {
   title?: string;
@@ -39,6 +40,22 @@ export interface DiagramDB {
   bindFunctions?: (element: Element) => void;
 }
 
+/**
+ * DiagramDB with fields that is required for all new diagrams.
+ */
+export type DiagramDBBase<T extends BaseDiagramConfig> = {
+  getConfig: () => Required<T>;
+} & SetRequired<
+  DiagramDB,
+  | 'clear'
+  | 'getAccTitle'
+  | 'getDiagramTitle'
+  | 'getAccDescription'
+  | 'setAccDescription'
+  | 'setAccTitle'
+  | 'setDiagramTitle'
+>;
+
 // This is what is returned from getClasses(...) methods.
 // It is slightly renamed to ..StyleClassDef instead of just ClassDef because "class" is a greatly ambiguous and overloaded word.
 // It makes it clear we're working with a style class definition, even though defining the type is currently difficult.
@@ -104,8 +121,8 @@ export type DrawDefinition = (
 ) => void | Promise<void>;
 
 export interface ParserDefinition {
-  parse: (text: string) => void;
-  parser: { yy: DiagramDB };
+  parse: (text: string) => void | Promise<void>;
+  parser?: { yy: DiagramDB };
 }
 
 export type HTML = d3.Selection<HTMLIFrameElement, unknown, Element | null, unknown>;

packages/mermaid/src/diagram.spec.ts

@@ -1,16 +1,39 @@
 import { describe, test, expect } from 'vitest';
-import { Diagram, getDiagramFromText } from './Diagram.js';
+import { Diagram } from './Diagram.js';
 import { addDetector } from './diagram-api/detectType.js';
 import { addDiagrams } from './diagram-api/diagram-orchestration.js';
+import type { DiagramLoader } from './diagram-api/types.js';
 
 addDiagrams();
 
+const getDummyDiagram = (id: string, title?: string): Awaited<ReturnType<DiagramLoader>> => {
+  return {
+    id,
+    diagram: {
+      db: {
+        getDiagramTitle: () => title ?? id,
+      },
+      parser: {
+        parse: () => {
+          // no-op
+        },
+      },
+      renderer: {
+        draw: () => {
+          // no-op
+        },
+      },
+      styles: {},
+    },
+  };
+};
+
 describe('diagram detection', () => {
   test('should detect inbuilt diagrams', async () => {
-    const graph = (await getDiagramFromText('graph TD; A-->B')) as Diagram;
+    const graph = (await Diagram.fromText('graph TD; A-->B')) as Diagram;
     expect(graph).toBeInstanceOf(Diagram);
     expect(graph.type).toBe('flowchart-v2');
-    const sequence = (await getDiagramFromText(
+    const sequence = (await Diagram.fromText(
       'sequenceDiagram; Alice->>+John: Hello John, how are you?'
     )) as Diagram;
     expect(sequence).toBeInstanceOf(Diagram);
@@ -21,41 +44,33 @@ describe('diagram detection', () => {
     addDetector(
       'loki',
       (str) => str.startsWith('loki'),
-      () =>
-        Promise.resolve({
-          id: 'loki',
-          diagram: {
-            db: {},
-            parser: {
-              parse: () => {
-                // no-op
-              },
-              parser: {
-                yy: {},
-              },
-            },
-            renderer: {
-              draw: () => {
-                // no-op
-              },
-            },
-            styles: {},
-          },
-        })
+      () => Promise.resolve(getDummyDiagram('loki'))
     );
-    const diagram = (await getDiagramFromText('loki TD; A-->B')) as Diagram;
+    const diagram = await Diagram.fromText('loki TD; A-->B');
     expect(diagram).toBeInstanceOf(Diagram);
     expect(diagram.type).toBe('loki');
   });
 
+  test('should allow external diagrams to override internal ones with same ID', async () => {
+    const title = 'overridden';
+    addDetector(
+      'flowchart-elk',
+      (str) => str.startsWith('flowchart-elk'),
+      () => Promise.resolve(getDummyDiagram('flowchart-elk', title))
+    );
+    const diagram = await Diagram.fromText('flowchart-elk TD; A-->B');
+    expect(diagram).toBeInstanceOf(Diagram);
+    expect(diagram.db.getDiagramTitle?.()).toBe(title);
+  });
+
   test('should throw the right error for incorrect diagram', async () => {
-    await expect(getDiagramFromText('graph TD; A-->')).rejects.toThrowErrorMatchingInlineSnapshot(`
+    await expect(Diagram.fromText('graph TD; A-->')).rejects.toThrowErrorMatchingInlineSnapshot(`
       "Parse error on line 2:
       graph TD; A-->
       --------------^
       Expecting 'AMP', 'COLON', 'PIPE', 'TESTSTR', 'DOWN', 'DEFAULT', 'NUM', 'COMMA', 'NODE_STRING', 'BRKT', 'MINUS', 'MULT', 'UNICODE_TEXT', got 'EOF'"
     `);
-    await expect(getDiagramFromText('sequenceDiagram; A-->B')).rejects
+    await expect(Diagram.fromText('sequenceDiagram; A-->B')).rejects
       .toThrowErrorMatchingInlineSnapshot(`
 "Parse error on line 1:
 ...quenceDiagram; A-->B
@@ -65,13 +80,13 @@ Expecting 'TXT', got 'NEWLINE'"
   });
 
   test('should throw the right error for unregistered diagrams', async () => {
-    await expect(getDiagramFromText('thor TD; A-->B')).rejects.toThrowErrorMatchingInlineSnapshot(
+    await expect(Diagram.fromText('thor TD; A-->B')).rejects.toThrowErrorMatchingInlineSnapshot(
       '"No diagram type detected matching given configuration for text: thor TD; A-->B"'
     );
   });
 
   test('should consider entity codes when present in diagram defination', async () => {
-    const diagram = await getDiagramFromText(`sequenceDiagram
+    const diagram = await Diagram.fromText(`sequenceDiagram
     A->>B: I #9829; you!
     B->>A: I #9829; you #infin; times more!`);
     // @ts-ignore: we need to add types for sequenceDb which will be done in separate PR

packages/mermaid/src/diagrams/block/blockDB.ts

@@ -1,9 +1,9 @@
-import type { DiagramDB } from '../../diagram-api/types.js';
-import type { BlockConfig, BlockType, Block, ClassDef } from './blockTypes.js';
-import * as configApi from '../../config.js';
-import { clear as commonClear } from '../common/commonDb.js';
-import { log } from '../../logger.js';
 import clone from 'lodash-es/clone.js';
+import * as configApi from '../../config.js';
+import type { DiagramDB } from '../../diagram-api/types.js';
+import { log } from '../../logger.js';
+import { clear as commonClear } from '../common/commonDb.js';
+import type { Block, ClassDef } from './blockTypes.js';
 
 // Initialize the node database for simple lookups
 let blockDatabase: Record<string, Block> = {};

packages/mermaid/src/diagrams/block/blockRenderer.ts

@@ -1,19 +1,17 @@
-import type { Diagram } from '../../Diagram.js';
-import * as configApi from '../../config.js';
-import { calculateBlockSizes, insertBlocks, insertEdges } from './renderHelpers.js';
-import { layout } from './layout.js';
-import type { MermaidConfig, BaseDiagramConfig } from '../../config.type.js';
-import insertMarkers from '../../dagre-wrapper/markers.js';
 import {
-  select as d3select,
   scaleOrdinal as d3scaleOrdinal,
   schemeTableau10 as d3schemeTableau10,
+  select as d3select,
 } from 'd3';
-import type { ContainerElement } from 'd3';
+import type { Diagram } from '../../Diagram.js';
+import * as configApi from '../../config.js';
+import type { MermaidConfig } from '../../config.type.js';
+import insertMarkers from '../../dagre-wrapper/markers.js';
 import { log } from '../../logger.js';
-import type { BlockDB } from './blockDB.js';
-import type { Block } from './blockTypes.js';
 import { configureSvgSize } from '../../setupGraphViewbox.js';
+import type { BlockDB } from './blockDB.js';
+import { layout } from './layout.js';
+import { calculateBlockSizes, insertBlocks, insertEdges } from './renderHelpers.js';
 
 /**
  * Returns the all the styles from classDef statements in the graph definition.

packages/mermaid/src/diagrams/block/renderHelpers.ts

@@ -1,15 +1,10 @@
-import { getStylesFromArray } from '../../utils.js';
-import { insertNode, positionNode } from '../../dagre-wrapper/nodes.js';
-import { insertEdge, insertEdgeLabel, positionEdgeLabel } from '../../dagre-wrapper/edges.js';
 import * as graphlib from 'dagre-d3-es/src/graphlib/index.js';
 import { getConfig } from '../../config.js';
-import type { ContainerElement } from 'd3';
-import type { Block } from './blockTypes.js';
+import { insertEdge, insertEdgeLabel, positionEdgeLabel } from '../../dagre-wrapper/edges.js';
+import { insertNode, positionNode } from '../../dagre-wrapper/nodes.js';
+import { getStylesFromArray } from '../../utils.js';
 import type { BlockDB } from './blockDB.js';
-
-interface Node {
-  classes: string;
-}
+import type { Block } from './blockTypes.js';
 
 function getNodeFromBlock(block: Block, db: BlockDB, positioned = false) {
   const vertex = block;

packages/mermaid/src/diagrams/common/populateCommonDb.ts

@@ -0,0 +1,14 @@
+import type { DiagramAST } from '@mermaid-js/parser';
+import type { DiagramDB } from '../../diagram-api/types.js';
+
+export function populateCommonDb(ast: DiagramAST, db: DiagramDB) {
+  if (ast.accDescr) {
+    db.setAccDescription?.(ast.accDescr);
+  }
+  if (ast.accTitle) {
+    db.setAccTitle?.(ast.accTitle);
+  }
+  if (ast.title) {
+    db.setDiagramTitle?.(ast.title);
+  }
+}

packages/mermaid/src/diagrams/error/errorDiagram.ts

@@ -5,7 +5,6 @@ const diagram: DiagramDefinition = {
   db: {},
   renderer,
   parser: {
-    parser: { yy: {} },
     parse: (): void => {
       return;
     },

packages/mermaid/src/diagrams/flowchart/elk/detector.ts

@@ -3,6 +3,7 @@ import type {
   DiagramDetector,
   DiagramLoader,
 } from '../../../diagram-api/types.js';
+import { log } from '../../../logger.js';
 
 const id = 'flowchart-elk';
 
@@ -13,13 +14,21 @@ const detector: DiagramDetector = (txt, config): boolean => {
     // If a flowchart/graph diagram has their default renderer set to elk
     (/^\s*flowchart|graph/.test(txt) && config?.flowchart?.defaultRenderer === 'elk')
   ) {
+    // This will log at the end, hopefully.
+    setTimeout(
+      () =>
+        log.warn(
+          'flowchart-elk was moved to an external package in Mermaid v11. Please refer [release notes](link) for more details. This diagram will be rendered using `dagre` layout as a fallback.'
+        ),
+      500
+    );
     return true;
   }
   return false;
 };
 
 const loader: DiagramLoader = async () => {
-  const { diagram } = await import('./flowchart-elk-definition.js');
+  const { diagram } = await import('../flowDiagram-v2.js');
   return { id, diagram };
 };
 

packages/mermaid/src/diagrams/flowchart/elk/flowchart-elk-definition.ts

@@ -1,13 +0,0 @@
-// @ts-ignore: JISON typing missing
-import parser from '../parser/flow.jison';
-
-import * as db from '../flowDb.js';
-import renderer from './flowRenderer-elk.js';
-import styles from './styles.js';
-
-export const diagram = {
-  db,
-  renderer,
-  parser,
-  styles,
-};

packages/mermaid/src/diagrams/flowchart/flowDb.spec.ts

@@ -1,14 +1,15 @@
 import flowDb from './flowDb.js';
+import type { FlowSubGraph } from './types.js';
 
 describe('flow db subgraphs', () => {
-  let subgraphs;
+  let subgraphs: FlowSubGraph[];
   beforeEach(() => {
     subgraphs = [
       { nodes: ['a', 'b', 'c', 'e'] },
       { nodes: ['f', 'g', 'h'] },
       { nodes: ['i', 'j'] },
       { nodes: ['k'] },
-    ];
+    ] as FlowSubGraph[];
   });
   describe('exist', () => {
     it('should return true when the is exists in a subgraph', () => {
@@ -25,17 +26,17 @@ describe('flow db subgraphs', () => {
 
   describe('makeUniq', () => {
     it('should remove ids from sungraph that already exists in another subgraph even if it gets empty', () => {
-      const subgraph = flowDb.makeUniq({ nodes: ['i', 'j'] }, subgraphs);
+      const subgraph = flowDb.makeUniq({ nodes: ['i', 'j'] } as FlowSubGraph, subgraphs);
 
       expect(subgraph.nodes).toEqual([]);
     });
     it('should remove ids from sungraph that already exists in another subgraph', () => {
-      const subgraph = flowDb.makeUniq({ nodes: ['i', 'j', 'o'] }, subgraphs);
+      const subgraph = flowDb.makeUniq({ nodes: ['i', 'j', 'o'] } as FlowSubGraph, subgraphs);
 
       expect(subgraph.nodes).toEqual(['o']);
     });
     it('should not remove ids from subgraph if they are unique', () => {
-      const subgraph = flowDb.makeUniq({ nodes: ['q', 'r', 's'] }, subgraphs);
+      const subgraph = flowDb.makeUniq({ nodes: ['q', 'r', 's'] } as FlowSubGraph, subgraphs);
 
       expect(subgraph.nodes).toEqual(['q', 'r', 's']);
     });

packages/mermaid/src/diagrams/flowchart/flowDb.ts

@@ -12,34 +12,34 @@ import {
   setDiagramTitle,
   getDiagramTitle,
 } from '../common/commonDb.js';
+import type { FlowVertex, FlowClass, FlowSubGraph, FlowText, FlowEdge, FlowLink } from './types.js';
 
 const MERMAID_DOM_ID_PREFIX = 'flowchart-';
 let vertexCounter = 0;
 let config = getConfig();
-let vertices = {};
-let edges = [];
-let classes = {};
-let subGraphs = [];
-let subGraphLookup = {};
-let tooltips = {};
+let vertices: Record<string, FlowVertex> = {};
+let edges: FlowEdge[] & { defaultInterpolate?: string; defaultStyle?: string[] } = [];
+let classes: Record<string, FlowClass> = {};
+let subGraphs: FlowSubGraph[] = [];
+let subGraphLookup: Record<string, FlowSubGraph> = {};
+let tooltips: Record<string, string> = {};
 let subCount = 0;
 let firstGraphFlag = true;
-let direction;
+let direction: string;
 
-let version; // As in graph
+let version: string; // As in graph
 
 // Functions to be run after graph rendering
-let funs = []; // cspell:ignore funs
+let funs: ((element: Element) => void)[] = []; // cspell:ignore funs
 
-const sanitizeText = (txt) => common.sanitizeText(txt, config);
+const sanitizeText = (txt: string) => common.sanitizeText(txt, config);
 
 /**
  * Function to lookup domId from id in the graph definition.
  *
- * @param id
- * @public
+ * @param id - id of the node
  */
-export const lookUpDomId = function (id) {
+export const lookUpDomId = function (id: string) {
   const vertexKeys = Object.keys(vertices);
   for (const vertexKey of vertexKeys) {
     if (vertices[vertexKey].id === id) {
@@ -52,30 +52,24 @@ export const lookUpDomId = function (id) {
 /**
  * Function called by parser when a node definition has been found
  *
- * @param _id
- * @param text
- * @param textObj
- * @param type
- * @param style
- * @param classes
- * @param dir
- * @param props
  */
-export const addVertex = function (_id, textObj, type, style, classes, dir, props = {}) {
+export const addVertex = function (
+  id: string,
+  textObj: FlowText,
+  type: 'group',
+  style: string[],
+  classes: string[],
+  dir: string,
+  props = {}
+) {
+  if (!id || id.trim().length === 0) {
+    return;
+  }
   let txt;
-  let id = _id;
-  if (id === undefined) {
-    return;
-  }
-  if (id.trim().length === 0) {
-    return;
-  }
-
-  // if (id[0].match(/\d/)) id = MERMAID_DOM_ID_PREFIX + id;
 
   if (vertices[id] === undefined) {
     vertices[id] = {
-      id: id,
+      id,
       labelType: 'text',
       domId: MERMAID_DOM_ID_PREFIX + id + '-' + vertexCounter,
       styles: [],
@@ -94,7 +88,7 @@ export const addVertex = function (_id, textObj, type, style, classes, dir, prop
     vertices[id].text = txt;
   } else {
     if (vertices[id].text === undefined) {
-      vertices[id].text = _id;
+      vertices[id].text = id;
     }
   }
   if (type !== undefined) {
@@ -123,20 +117,12 @@ export const addVertex = function (_id, textObj, type, style, classes, dir, prop
 /**
  * Function called by parser when a link/edge definition has been found
  *
- * @param _start
- * @param _end
- * @param type
- * @param linkText
- * @param linkTextObj
  */
-export const addSingleLink = function (_start, _end, type) {
-  let start = _start;
-  let end = _end;
-  // if (start[0].match(/\d/)) start = MERMAID_DOM_ID_PREFIX + start;
-  // if (end[0].match(/\d/)) end = MERMAID_DOM_ID_PREFIX + end;
-  // log.info('Got edge...', start, end);
+export const addSingleLink = function (_start: string, _end: string, type: any) {
+  const start = _start;
+  const end = _end;
 
-  const edge = { start: start, end: end, type: undefined, text: '', labelType: 'text' };
+  const edge: FlowEdge = { start: start, end: end, type: undefined, text: '', labelType: 'text' };
   log.info('abc78 Got edge...', edge);
   const linkTextObj = type.text;
 
@@ -153,13 +139,11 @@ export const addSingleLink = function (_start, _end, type) {
   if (type !== undefined) {
     edge.type = type.type;
     edge.stroke = type.stroke;
-    edge.length = type.length;
-  }
-  if (edge?.length > 10) {
-    edge.length = 10;
+    edge.length = type.length > 10 ? 10 : type.length;
   }
+
   if (edges.length < (config.maxEdges ?? 500)) {
-    log.info('abc78 pushing edge...');
+    log.info('Pushing edge...');
     edges.push(edge);
   } else {
     throw new Error(
@@ -171,12 +155,12 @@ You have to call mermaid.initialize.`
     );
   }
 };
-export const addLink = function (_start, _end, type) {
-  log.info('addLink (abc78)', _start, _end, type);
-  let i, j;
-  for (i = 0; i < _start.length; i++) {
-    for (j = 0; j < _end.length; j++) {
-      addSingleLink(_start[i], _end[j], type);
+
+export const addLink = function (_start: string[], _end: string[], type: unknown) {
+  log.info('addLink', _start, _end, type);
+  for (const start of _start) {
+    for (const end of _end) {
+      addSingleLink(start, end, type);
     }
   }
 };
@@ -184,15 +168,16 @@ export const addLink = function (_start, _end, type) {
 /**
  * Updates a link's line interpolation algorithm
  *
- * @param positions
- * @param interp
  */
-export const updateLinkInterpolate = function (positions, interp) {
+export const updateLinkInterpolate = function (
+  positions: ('default' | number)[],
+  interpolate: string
+) {
   positions.forEach(function (pos) {
     if (pos === 'default') {
-      edges.defaultInterpolate = interp;
+      edges.defaultInterpolate = interpolate;
     } else {
-      edges[pos].interpolate = interp;
+      edges[pos].interpolate = interpolate;
     }
   });
 };
@@ -200,12 +185,10 @@ export const updateLinkInterpolate = function (positions, interp) {
 /**
  * Updates a link with a style
  *
- * @param positions
- * @param style
  */
-export const updateLink = function (positions, style) {
+export const updateLink = function (positions: ('default' | number)[], style: string[]) {
   positions.forEach(function (pos) {
-    if (pos >= edges.length) {
+    if (typeof pos === 'number' && pos >= edges.length) {
       throw new Error(
         `The index ${pos} for linkStyle is out of bounds. Valid indices for linkStyle are between 0 and ${
           edges.length - 1
@@ -223,7 +206,7 @@ export const updateLink = function (positions, style) {
   });
 };
 
-export const addClass = function (ids, style) {
+export const addClass = function (ids: string, style: string[]) {
   ids.split(',').forEach(function (id) {
     if (classes[id] === undefined) {
       classes[id] = { id, styles: [], textStyles: [] };
@@ -244,9 +227,8 @@ export const addClass = function (ids, style) {
 /**
  * Called by parser when a graph definition is found, stores the direction of the chart.
  *
- * @param dir
  */
-export const setDirection = function (dir) {
+export const setDirection = function (dir: string) {
   direction = dir;
   if (direction.match(/.*</)) {
     direction = 'RL';
@@ -268,34 +250,32 @@ export const setDirection = function (dir) {
 /**
  * Called by parser when a special node is found, e.g. a clickable element.
  *
- * @param ids Comma separated list of ids
- * @param className Class to add
+ * @param ids - Comma separated list of ids
+ * @param className - Class to add
  */
-export const setClass = function (ids, className) {
-  ids.split(',').forEach(function (_id) {
-    // let id = version === 'gen-2' ? lookUpDomId(_id) : _id;
-    let id = _id;
-    // if (_id[0].match(/\d/)) id = MERMAID_DOM_ID_PREFIX + id;
-    if (vertices[id] !== undefined) {
+export const setClass = function (ids: string, className: string) {
+  for (const id of ids.split(',')) {
+    if (vertices[id]) {
       vertices[id].classes.push(className);
     }
-
-    if (subGraphLookup[id] !== undefined) {
+    if (subGraphLookup[id]) {
       subGraphLookup[id].classes.push(className);
     }
-  });
+  }
 };
 
-const setTooltip = function (ids, tooltip) {
-  ids.split(',').forEach(function (id) {
-    if (tooltip !== undefined) {
-      tooltips[version === 'gen-1' ? lookUpDomId(id) : id] = sanitizeText(tooltip);
-    }
-  });
+const setTooltip = function (ids: string, tooltip: string) {
+  if (tooltip === undefined) {
+    return;
+  }
+  tooltip = sanitizeText(tooltip);
+  for (const id of ids.split(',')) {
+    tooltips[version === 'gen-1' ? lookUpDomId(id) : id] = tooltip;
+  }
 };
 
-const setClickFun = function (id, functionName, functionArgs) {
-  let domId = lookUpDomId(id);
+const setClickFun = function (id: string, functionName: string, functionArgs: string) {
+  const domId = lookUpDomId(id);
   // if (_id[0].match(/\d/)) id = MERMAID_DOM_ID_PREFIX + id;
   if (getConfig().securityLevel !== 'loose') {
     return;
@@ -303,7 +283,7 @@ const setClickFun = function (id, functionName, functionArgs) {
   if (functionName === undefined) {
     return;
   }
-  let argList = [];
+  let argList: string[] = [];
   if (typeof functionArgs === 'string') {
     /* Splits functionArgs by ',', ignoring all ',' in double quoted strings */
     argList = functionArgs.split(/,(?=(?:(?:[^"]*"){2})*[^"]*$)/);
@@ -343,11 +323,11 @@ const setClickFun = function (id, functionName, functionArgs) {
 /**
  * Called by parser when a link is found. Adds the URL to the vertex data.
  *
- * @param ids Comma separated list of ids
- * @param linkStr URL to create a link for
- * @param target
+ * @param ids - Comma separated list of ids
+ * @param linkStr - URL to create a link for
+ * @param target - Target attribute for the link
  */
-export const setLink = function (ids, linkStr, target) {
+export const setLink = function (ids: string, linkStr: string, target: string) {
   ids.split(',').forEach(function (id) {
     if (vertices[id] !== undefined) {
       vertices[id].link = utils.formatUrl(linkStr, config);
@@ -356,7 +336,8 @@ export const setLink = function (ids, linkStr, target) {
   });
   setClass(ids, 'clickable');
 };
-export const getTooltip = function (id) {
+
+export const getTooltip = function (id: string) {
   if (tooltips.hasOwnProperty(id)) {
     return tooltips[id];
   }
@@ -366,18 +347,18 @@ export const getTooltip = function (id) {
 /**
  * Called by parser when a click definition is found. Registers an event handler.
  *
- * @param ids Comma separated list of ids
- * @param functionName Function to be called on click
- * @param functionArgs
+ * @param ids - Comma separated list of ids
+ * @param functionName - Function to be called on click
+ * @param functionArgs - Arguments to be passed to the function
  */
-export const setClickEvent = function (ids, functionName, functionArgs) {
+export const setClickEvent = function (ids: string, functionName: string, functionArgs: string) {
   ids.split(',').forEach(function (id) {
     setClickFun(id, functionName, functionArgs);
   });
   setClass(ids, 'clickable');
 };
 
-export const bindFunctions = function (element) {
+export const bindFunctions = function (element: Element) {
   funs.forEach(function (fun) {
     fun(element);
   });
@@ -388,7 +369,6 @@ export const getDirection = function () {
 /**
  * Retrieval function for fetching the found nodes after parsing has completed.
  *
- * @returns {{} | any | vertices}
  */
 export const getVertices = function () {
   return vertices;
@@ -397,7 +377,6 @@ export const getVertices = function () {
 /**
  * Retrieval function for fetching the found links after parsing has completed.
  *
- * @returns {{} | any | edges}
  */
 export const getEdges = function () {
   return edges;
@@ -406,15 +385,16 @@ export const getEdges = function () {
 /**
  * Retrieval function for fetching the found class definitions after parsing has completed.
  *
- * @returns {{} | any | classes}
  */
 export const getClasses = function () {
   return classes;
 };
 
-const setupToolTips = function (element) {
+const setupToolTips = function (element: Element) {
   let tooltipElem = select('.mermaidTooltip');
+  // @ts-ignore TODO: fix this
   if ((tooltipElem._groups || tooltipElem)[0][0] === null) {
+    // @ts-ignore TODO: fix this
     tooltipElem = select('body').append('div').attr('class', 'mermaidTooltip').style('opacity', 0);
   }
 
@@ -430,8 +410,9 @@ const setupToolTips = function (element) {
       if (title === null) {
         return;
       }
-      const rect = this.getBoundingClientRect();
+      const rect = (this as Element)?.getBoundingClientRect();
 
+      // @ts-ignore TODO: fix this
       tooltipElem.transition().duration(200).style('opacity', '.9');
       tooltipElem
         .text(el.attr('title'))
@@ -441,6 +422,7 @@ const setupToolTips = function (element) {
       el.classed('hover', true);
     })
     .on('mouseout', function () {
+      // @ts-ignore TODO: fix this
       tooltipElem.transition().duration(500).style('opacity', 0);
       const el = select(this);
       el.classed('hover', false);
@@ -451,7 +433,6 @@ funs.push(setupToolTips);
 /**
  * Clears the internal graph db so that a new graph can be parsed.
  *
- * @param ver
  */
 export const clear = function (ver = 'gen-1') {
   vertices = {};
@@ -467,31 +448,29 @@ export const clear = function (ver = 'gen-1') {
   config = getConfig();
   commonClear();
 };
-export const setGen = (ver) => {
+
+export const setGen = (ver: string) => {
   version = ver || 'gen-2';
 };
-/** @returns {string} */
+
 export const defaultStyle = function () {
   return 'fill:#ffa;stroke: #f66; stroke-width: 3px; stroke-dasharray: 5, 5;fill:#ffa;stroke: #666;';
 };
 
-/**
- * Clears the internal graph db so that a new graph can be parsed.
- *
- * @param _id
- * @param list
- * @param _title
- */
-export const addSubGraph = function (_id, list, _title) {
-  let id = _id.text.trim();
+export const addSubGraph = function (
+  _id: { text: string },
+  list: string[],
+  _title: { text: string; type: string }
+) {
+  let id: string | undefined = _id.text.trim();
   let title = _title.text;
   if (_id === _title && _title.text.match(/\s/)) {
     id = undefined;
   }
-  /** @param a */
-  function uniq(a) {
-    const prims = { boolean: {}, number: {}, string: {} };
-    const objs = [];
+
+  function uniq(a: any[]) {
+    const prims: any = { boolean: {}, number: {}, string: {} };
+    const objs: any[] = [];
 
     let dir; //  = undefined; direction.trim();
     const nodeList = a.filter(function (item) {
@@ -512,10 +491,7 @@ export const addSubGraph = function (_id, list, _title) {
     return { nodeList, dir };
   }
 
-  let nodeList = [];
-
-  const { nodeList: nl, dir } = uniq(nodeList.concat.apply(nodeList, list));
-  nodeList = nl;
+  const { nodeList, dir } = uniq(list.flat());
   if (version === 'gen-1') {
     for (let i = 0; i < nodeList.length; i++) {
       nodeList[i] = lookUpDomId(nodeList[i]);
@@ -523,7 +499,6 @@ export const addSubGraph = function (_id, list, _title) {
   }
 
   id = id || 'subGraph' + subCount;
-  // if (id[0].match(/\d/)) id = lookUpDomId(id);
   title = title || '';
   title = sanitizeText(title);
   subCount = subCount + 1;
@@ -538,19 +513,6 @@ export const addSubGraph = function (_id, list, _title) {
 
   log.info('Adding', subGraph.id, subGraph.nodes, subGraph.dir);
 
-  /** Deletes an id from all subgraphs */
-  // const del = _id => {
-  //   subGraphs.forEach(sg => {
-  //     const pos = sg.nodes.indexOf(_id);
-  //     if (pos >= 0) {
-  //       sg.nodes.splice(pos, 1);
-  //     }
-  //   });
-  // };
-
-  // // Removes the members of this subgraph from any other subgraphs, a node only belong to one subgraph
-  // subGraph.nodes.forEach(_id => del(_id));
-
   // Remove the members in the new subgraph if they already belong to another subgraph
   subGraph.nodes = makeUniq(subGraph, subGraphs).nodes;
   subGraphs.push(subGraph);
@@ -558,7 +520,7 @@ export const addSubGraph = function (_id, list, _title) {
   return id;
 };
 
-const getPosForId = function (id) {
+const getPosForId = function (id: string) {
   for (const [i, subGraph] of subGraphs.entries()) {
     if (subGraph.id === id) {
       return i;
@@ -567,12 +529,15 @@ const getPosForId = function (id) {
   return -1;
 };
 let secCount = -1;
-const posCrossRef = [];
-const indexNodes2 = function (id, pos) {
+const posCrossRef: number[] = [];
+const indexNodes2 = function (id: string, pos: number): { result: boolean; count: number } {
   const nodes = subGraphs[pos].nodes;
   secCount = secCount + 1;
   if (secCount > 2000) {
-    return;
+    return {
+      result: false,
+      count: 0,
+    };
   }
   posCrossRef[secCount] = pos;
   // Check if match
@@ -608,13 +573,13 @@ const indexNodes2 = function (id, pos) {
   };
 };
 
-export const getDepthFirstPos = function (pos) {
+export const getDepthFirstPos = function (pos: number) {
   return posCrossRef[pos];
 };
 export const indexNodes = function () {
   secCount = -1;
   if (subGraphs.length > 0) {
-    indexNodes2('none', subGraphs.length - 1, 0);
+    indexNodes2('none', subGraphs.length - 1);
   }
 };
 
@@ -630,7 +595,7 @@ export const firstGraph = () => {
   return false;
 };
 
-const destructStartLink = (_str) => {
+const destructStartLink = (_str: string): FlowLink => {
   let str = _str.trim();
   let type = 'arrow_open';
 
@@ -662,7 +627,7 @@ const destructStartLink = (_str) => {
   return { type, stroke };
 };
 
-const countChar = (char, str) => {
+const countChar = (char: string, str: string) => {
   const length = str.length;
   let count = 0;
   for (let i = 0; i < length; ++i) {
@@ -673,7 +638,7 @@ const countChar = (char, str) => {
   return count;
 };
 
-const destructEndLink = (_str) => {
+const destructEndLink = (_str: string) => {
   const str = _str.trim();
   let line = str.slice(0, -1);
   let type = 'arrow_open';
@@ -713,7 +678,7 @@ const destructEndLink = (_str) => {
     stroke = 'invisible';
   }
 
-  let dots = countChar('.', line);
+  const dots = countChar('.', line);
 
   if (dots) {
     stroke = 'dotted';
@@ -723,7 +688,7 @@ const destructEndLink = (_str) => {
   return { type, stroke, length };
 };
 
-export const destructLink = (_str, _startStr) => {
+export const destructLink = (_str: string, _startStr: string) => {
   const info = destructEndLink(_str);
   let startInfo;
   if (_startStr) {
@@ -757,7 +722,7 @@ export const destructLink = (_str, _startStr) => {
 };
 
 // Todo optimizer this by caching existing nodes
-const exists = (allSgs, _id) => {
+const exists = (allSgs: FlowSubGraph[], _id: string) => {
   let res = false;
   allSgs.forEach((sg) => {
     const pos = sg.nodes.indexOf(_id);
@@ -770,11 +735,9 @@ const exists = (allSgs, _id) => {
 /**
  * Deletes an id from all subgraphs
  *
- * @param sg
- * @param allSubgraphs
  */
-const makeUniq = (sg, allSubgraphs) => {
-  const res = [];
+const makeUniq = (sg: FlowSubGraph, allSubgraphs: FlowSubGraph[]) => {
+  const res: string[] = [];
   sg.nodes.forEach((_id, pos) => {
     if (!exists(allSubgraphs, _id)) {
       res.push(sg.nodes[pos]);
@@ -786,6 +749,7 @@ const makeUniq = (sg, allSubgraphs) => {
 export const lex = {
   firstGraph,
 };
+
 export default {
   defaultConfig: () => defaultConfig.flowchart,
   setAccTitle,

packages/mermaid/src/diagrams/flowchart/parser/backup

@@ -1,503 +0,0 @@
-/** mermaid
- *  https://mermaidjs.github.io/
- *  (c) 2015 Knut Sveidqvist
- *  MIT license.
- */
-
-/* lexical grammar */
-%lex
-%x string
-
-%%
-\%\%[^\n]*            /* do nothing */
-["]                     this.begin("string");
-<string>["]             this.popState();
-<string>[^"]*           return "STR";
-"style"               return 'STYLE';
-"default"             return 'DEFAULT';
-"linkStyle"           return 'LINKSTYLE';
-"interpolate"         return 'INTERPOLATE';
-"classDef"            return 'CLASSDEF';
-"class"               return 'CLASS';
-"click"               return 'CLICK';
-"graph"               return 'GRAPH';
-"subgraph"            return 'subgraph';
-"end"\b\s*            return 'end';
-"LR"                  return 'DIR';
-"RL"                  return 'DIR';
-"TB"                  return 'DIR';
-"BT"                  return 'DIR';
-"TD"                  return 'DIR';
-"BR"                  return 'DIR';
-[0-9]+                 return 'NUM';
-\#                    return 'BRKT';
-":"                   return 'COLON';
-";"                   return 'SEMI';
-","                   return 'COMMA';
-"*"                   return 'MULT';
-\s*\-\-[x]\s*            return 'ARROW_CROSS';
-\s*[x]\-\-[x]\s*         return 'DOUBLE_ARROW_CROSS';
-\s*\-\-\>\s*             return 'ARROW_POINT';
-\s*\<\-\-\>\s*           return 'DOUBLE_ARROW_POINT';
-\s*\-\-[o]\s*            return 'ARROW_CIRCLE';
-\s*[o]\-\-[o]\s*         return 'DOUBLE_ARROW_CIRCLE';
-\s*\-\-\-\s*             return 'ARROW_OPEN';
-\s*\-\.\-[x]\s*          return 'DOTTED_ARROW_CROSS';
-\s*[x]\-\.\-[x]\s*       return 'DOUBLE_DOTTED_ARROW_CROSS';
-\s*\-\.\-\>\s*           return 'DOTTED_ARROW_POINT';
-\s*\<\-\.\-\>\s*         return 'DOUBLE_DOTTED_ARROW_POINT';
-\s*\-\.\-[o]\s*          return 'DOTTED_ARROW_CIRCLE';
-\s*[o]\-\.\-[o]\s*       return 'DOUBLE_DOTTED_ARROW_CIRCLE';
-\s*\-\.\-\s*             return 'DOTTED_ARROW_OPEN';
-\s*.\-[x]\s*             return 'DOTTED_ARROW_CROSS';
-\s*[x].\-[x]\s*          return 'DOUBLE_DOTTED_ARROW_CROSS';
-\s*\.\-\>\s*             return 'DOTTED_ARROW_POINT';
-\s*\<\.\-\>\s*           return 'DOUBLE_DOTTED_ARROW_POINT';
-\s*\.\-[o]\s*            return 'DOTTED_ARROW_CIRCLE';
-\s*[o]\.\-[o]\s*         return 'DOUBLE_DOTTED_ARROW_CIRCLE';
-\s*\.\-\s*               return 'DOTTED_ARROW_OPEN';
-\s*\=\=[x]\s*            return 'THICK_ARROW_CROSS';
-\s*[x]\=\=[x]\s*         return 'DOUBLE_THICK_ARROW_CROSS';
-\s*\=\=\>\s*             return 'THICK_ARROW_POINT';
-\s*\<\=\=\>\s*           return 'DOUBLE_THICK_ARROW_POINT';
-\s*\=\=[o]\s*            return 'THICK_ARROW_CIRCLE';
-\s*[o]\=\=[o]\s*         return 'DOUBLE_THICK_ARROW_CIRCLE';
-\s*\=\=[\=]\s*           return 'THICK_ARROW_OPEN';
-\s*\-\-\s*               return '--';
-\s*\-\.\s*               return '-.';
-\s*\=\=\s*               return '==';
-%\s*\<\-\-\s*             return 'START_DOUBLE_ARROW_POINT';
-%\s*\[x]\-\-\s*           return 'START_DOUBLE_ARROW_CROSS';
-%\s*\[o]\-\-\s*           return 'START_DOUBLE_ARROW_CIRCLE';
-%\s*\<\-\.\s*             return 'START_DOUBLE_DOTTED_ARROW_POINT';
-%\s*\[x]\-\.\s*           return 'START_DOUBLE_DOTTED_ARROW_CROSS';
-%\s*\[o]\-\.\s*           return 'START_DOUBLE_DOTTED_ARROW_CIRCLE';
-%\s*\<\=\=\s*             return 'START_DOUBLE_THICK_ARROW_POINT';
-%\s*\[x]\=\=\s*           return 'START_DOUBLE_THICK_ARROW_CROSS';
-%\s*\[o]\=\=\s*           return 'START_DOUBLE_THICK_ARROW_CIRCLE';
-"(-"                  return '(-';
-"-)"                  return '-)';
-\-                    return 'MINUS';
-"."                   return 'DOT';
-\+                    return 'PLUS';
-\%                    return 'PCT';
-"="                   return 'EQUALS';
-\=                    return 'EQUALS';
-"<"                   return 'TAGSTART';
-">"                   return 'TAGEND';
-"^"                   return 'UP';
-"v"                   return 'DOWN';
-[A-Za-z]+             return 'ALPHA';
-[!"#$%&'*+,-.`?\\_/]  return 'PUNCTUATION';
-[\u00AA\u00B5\u00BA\u00C0-\u00D6\u00D8-\u00F6]|
-[\u00F8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377]|
-[\u037A-\u037D\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5]|
-[\u03F7-\u0481\u048A-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA]|
-[\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE]|
-[\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA]|
-[\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0]|
-[\u08A2-\u08AC\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0977]|
-[\u0979-\u097F\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2]|
-[\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A]|
-[\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39]|
-[\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8]|
-[\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0B05-\u0B0C]|
-[\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C]|
-[\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99]|
-[\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0]|
-[\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C33\u0C35-\u0C39\u0C3D]|
-[\u0C58\u0C59\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3]|
-[\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10]|
-[\u0D12-\u0D3A\u0D3D\u0D4E\u0D60\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1]|
-[\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81]|
-[\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3]|
-[\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6]|
-[\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A]|
-[\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081]|
-[\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D]|
-[\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0]|
-[\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310]|
-[\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F4\u1401-\u166C]|
-[\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u1700-\u170C\u170E-\u1711]|
-[\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7]|
-[\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191C]|
-[\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19C1-\u19C7\u1A00-\u1A16]|
-[\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF]|
-[\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC]|
-[\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D]|
-[\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D]|
-[\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3]|
-[\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F]|
-[\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128]|
-[\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2183\u2184]|
-[\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3]|
-[\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6]|
-[\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE]|
-[\u2DD0-\u2DD6\u2DD8-\u2DDE\u2E2F\u3005\u3006\u3031-\u3035\u303B\u303C]|
-[\u3041-\u3096\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D]|
-[\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC]|
-[\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B]|
-[\uA640-\uA66E\uA67F-\uA697\uA6A0-\uA6E5\uA717-\uA71F\uA722-\uA788]|
-[\uA78B-\uA78E\uA790-\uA793\uA7A0-\uA7AA\uA7F8-\uA801\uA803-\uA805]|
-[\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB]|
-[\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uAA00-\uAA28]|
-[\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA80-\uAAAF\uAAB1\uAAB5]|
-[\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4]|
-[\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E]|
-[\uABC0-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D]|
-[\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36]|
-[\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D]|
-[\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC]|
-[\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF]|
-[\uFFD2-\uFFD7\uFFDA-\uFFDC]
-                      return 'UNICODE_TEXT';
-"|"                   return 'PIPE';
-"("                   return 'PS';
-")"                   return 'PE';
-"["                   return 'SQS';
-"]"                   return 'SQE';
-"{"                   return 'DIAMOND_START'
-"}"                   return 'DIAMOND_STOP'
-"\""                  return 'QUOTE';
-\n+                   return 'NEWLINE';
-\s                    return 'SPACE';
-<<EOF>>               return 'EOF';
-
-/lex
-
-/* operator associations and precedence */
-
-%left '^'
-
-%start mermaidDoc
-
-%% /* language grammar */
-
-mermaidDoc: graphConfig document;
-
-document
-	: /* empty */
-	{ $$ = [];}
-	| document line
-	{
-	    if($2 !== []){
-	        $1.push($2);
-	    }
-	    $$=$1;}
-	;
-
-line
-	: statement
-	{$$=$1;}
-	| SEMI
-	| NEWLINE
-	| SPACE
-	| EOF
-	;
-
-graphConfig
-    : SPACE graphConfig
-    | NEWLINE graphConfig
-    | GRAPH SPACE DIR FirstStmtSeperator
-        { yy.setDirection($3);$$ = $3;}
-    | GRAPH SPACE TAGEND FirstStmtSeperator
-        { yy.setDirection("LR");$$ = $3;}
-    | GRAPH SPACE TAGSTART FirstStmtSeperator
-        { yy.setDirection("RL");$$ = $3;}
-    | GRAPH SPACE UP FirstStmtSeperator
-        { yy.setDirection("BT");$$ = $3;}
-    | GRAPH SPACE DOWN FirstStmtSeperator
-        { yy.setDirection("TB");$$ = $3;}
-    ;
-
-ending: endToken ending
-      | endToken
-      ;
-
-endToken: NEWLINE | SPACE | EOF;
-
-FirstStmtSeperator
-    : SEMI | NEWLINE | spaceList NEWLINE ;
-
-
-spaceListNewline
-    : SPACE spaceListNewline
-    | NEWLINE spaceListNewline
-    | NEWLINE
-    | SPACE
-    ;
-
-
-spaceList
-    : SPACE spaceList
-    | SPACE
-    ;
-
-statement
-    : verticeStatement separator
-    {$$=$1}
-    | styleStatement separator
-    {$$=[];}
-    | linkStyleStatement separator
-    {$$=[];}
-    | classDefStatement separator
-    {$$=[];}
-    | classStatement separator
-    {$$=[];}
-    | clickStatement separator
-    {$$=[];}
-    | subgraph SPACE alphaNum SQS text SQE separator document end
-    {$$=yy.addSubGraph($3,$8,$5);}
-    | subgraph SPACE STR separator document end
-    {$$=yy.addSubGraph(undefined,$5,$3);}
-    | subgraph SPACE alphaNum separator document end
-    {$$=yy.addSubGraph($3,$5,$3);}
-    | subgraph separator document end
-    {$$=yy.addSubGraph(undefined,$3,undefined);}
-    ;
-
-separator: NEWLINE | SEMI | EOF ;
-
-verticeStatement:
-     vertex link vertex
-        { yy.addLink($1,$3,$2);$$ = [$1,$3];}
-     | vertex
-        {$$ = [$1];}
-    ;
-
-vertex:  alphaNum SQS text SQE
-        {$$ = $1;yy.addVertex($1,$3,'square');}
-    |  alphaNum SQS text SQE spaceList
-        {$$ = $1;yy.addVertex($1,$3,'square');}
-    | alphaNum PS PS text PE PE
-        {$$ = $1;yy.addVertex($1,$4,'circle');}
-    | alphaNum PS PS text PE PE spaceList
-        {$$ = $1;yy.addVertex($1,$4,'circle');}
-    | alphaNum '(-' text '-)'
-        {$$ = $1;yy.addVertex($1,$3,'ellipse');}
-    | alphaNum '(-' text '-)' spaceList
-        {$$ = $1;yy.addVertex($1,$3,'ellipse');}
-    | alphaNum PS text PE
-        {$$ = $1;yy.addVertex($1,$3,'round');}
-    | alphaNum PS text PE spaceList
-        {$$ = $1;yy.addVertex($1,$3,'round');}
-    | alphaNum DIAMOND_START text DIAMOND_STOP
-        {$$ = $1;yy.addVertex($1,$3,'diamond');}
-    | alphaNum DIAMOND_START text DIAMOND_STOP spaceList
-        {$$ = $1;yy.addVertex($1,$3,'diamond');}
-    | alphaNum TAGEND text SQE
-        {$$ = $1;yy.addVertex($1,$3,'odd');}
-    | alphaNum TAGEND text SQE spaceList
-        {$$ = $1;yy.addVertex($1,$3,'odd');}
-/*  | alphaNum SQS text TAGSTART
-        {$$ = $1;yy.addVertex($1,$3,'odd_right');}
-    | alphaNum SQS text TAGSTART spaceList
-        {$$ = $1;yy.addVertex($1,$3,'odd_right');} */
-    | alphaNum
-        {$$ = $1;yy.addVertex($1);}
-    | alphaNum spaceList
-        {$$ = $1;yy.addVertex($1);}
-    ;
-
-alphaNum
-    : alphaNumStatement
-    {$$=$1;}
-    | alphaNum alphaNumStatement
-    {$$=$1+''+$2;}
-    ;
-
-alphaNumStatement
-    : DIR
-        {$$=$1;}
-    | alphaNumToken
-        {$$=$1;}
-    | DOWN
-        {$$='v';}
-    | MINUS
-        {$$='-';}
-    ;
-
-link: linkStatement arrowText
-    {$1.text = $2;$$ = $1;}
-    | linkStatement TESTSTR SPACE
-    {$1.text = $2;$$ = $1;}
-    | linkStatement arrowText SPACE
-    {$1.text = $2;$$ = $1;}
-    | linkStatement
-    {$$ = $1;}
-    | '--' text ARROW_POINT
-        {$$ = {"type":"arrow","stroke":"normal","text":$2};}
-    | 'START_DOUBLE_ARROW_POINT' text ARROW_POINT
-        {$$ = {"type":"double_arrow_point","stroke":"normal","text":$2};}
-    | '--' text ARROW_CIRCLE
-        {$$ = {"type":"arrow_circle","stroke":"normal","text":$2};}
-    | '--' text ARROW_CROSS
-        {$$ = {"type":"arrow_cross","stroke":"normal","text":$2};}
-    | '--' text ARROW_OPEN
-        {$$ = {"type":"arrow_open","stroke":"normal","text":$2};}
-    | '-.' text DOTTED_ARROW_POINT
-        {$$ = {"type":"arrow","stroke":"dotted","text":$2};}
-    | '-.' text DOTTED_ARROW_CIRCLE
-        {$$ = {"type":"arrow_circle","stroke":"dotted","text":$2};}
-    | '-.' text DOTTED_ARROW_CROSS
-        {$$ = {"type":"arrow_cross","stroke":"dotted","text":$2};}
-    | '-.' text DOTTED_ARROW_OPEN
-        {$$ = {"type":"arrow_open","stroke":"dotted","text":$2};}
-    | '==' text THICK_ARROW_POINT
-        {$$ = {"type":"arrow","stroke":"thick","text":$2};}
-    | '==' text THICK_ARROW_CIRCLE
-        {$$ = {"type":"arrow_circle","stroke":"thick","text":$2};}
-    | '==' text THICK_ARROW_CROSS
-        {$$ = {"type":"arrow_cross","stroke":"thick","text":$2};}
-    | '==' text THICK_ARROW_OPEN
-        {$$ = {"type":"arrow_open","stroke":"thick","text":$2};}
-    ;
-
-linkStatement: ARROW_POINT
-        {$$ = {"type":"arrow","stroke":"normal"};}
-    | DOUBLE_ARROW_POINT
-        {$$ = {"type":"double_arrow_point","stroke":"normal"};}
-    | ARROW_CIRCLE
-        {$$ = {"type":"arrow_circle","stroke":"normal"};}
-%    | DOUBLE_ARROW_CIRCLE
-%        {$$ = {"type":"double_arrow_circle","stroke":"normal"};}
-    | ARROW_CROSS
-        {$$ = {"type":"arrow_cross","stroke":"normal"};}
- %   | DOUBLE_ARROW_CROSS
- %       {$$ = {"type":"double_arrow_cross","stroke":"normal"};}
-    | ARROW_OPEN
-        {$$ = {"type":"arrow_open","stroke":"normal"};}
-    | DOTTED_ARROW_POINT
-        {$$ = {"type":"arrow","stroke":"dotted"};}
-%    | DOUEBL_DOTTED_ARROW_POINT
-%        {$$ = {"type":"doueble_arrow_point","stroke":"dotted"};}
-    | DOTTED_ARROW_CIRCLE
-        {$$ = {"type":"arrow_circle","stroke":"dotted"};}
-%    | DOTTED_ARROW_CIRCLE
-%        {$$ = {"type":"double_arrow_circle","stroke":"dotted"};}
-    | DOTTED_ARROW_CROSS
-        {$$ = {"type":"arrow_cross","stroke":"dotted"};}
-%    | DOTTED_ARROW_CROSS
-%        {$$ = {"type":"double_arrow_cross","stroke":"dotted"};}
-    | DOTTED_ARROW_OPEN
-        {$$ = {"type":"arrow_open","stroke":"dotted"};}
-    | THICK_ARROW_POINT
-        {$$ = {"type":"arrow","stroke":"thick"};}
-%    | THICK_ARROW_POINT
-%        {$$ = {"type":"double_arrow_point","stroke":"thick"};}
-    | THICK_ARROW_CIRCLE
-        {$$ = {"type":"arrow_circle","stroke":"thick"};}
-%    | THICK_ARROW_CIRCLE
-%        {$$ = {"type":"double_arrow_circle","stroke":"thick"};}
-    | THICK_ARROW_CROSS
-        {$$ = {"type":"arrow_cross","stroke":"thick"};}
-%    | THICK_ARROW_CROSS
-%        {$$ = {"type":"double_arrow_cross","stroke":"thick"};}
-    | THICK_ARROW_OPEN
-        {$$ = {"type":"arrow_open","stroke":"thick"};}
-        ;
-
-arrowText:
-    PIPE text PIPE
-    {$$ = $2;}
-    ;
-
-text: textToken
-    {$$=$1;}
-    | text textToken
-    {$$=$1+''+$2;}
-    | STR
-    {$$=$1;}
-    ;
-
-
-
-commentText: commentToken
-    {$$=$1;}
-    | commentText commentToken
-    {$$=$1+''+$2;}
-    ;
-
-
-keywords
-    : STYLE | LINKSTYLE | CLASSDEF | CLASS | CLICK | GRAPH | DIR | subgraph | end | DOWN | UP;
-
-
-textNoTags: textNoTagsToken
-    {$$=$1;}
-    | textNoTags textNoTagsToken
-    {$$=$1+''+$2;}
-    ;
-
-
-classDefStatement:CLASSDEF SPACE DEFAULT SPACE stylesOpt
-    {$$ = $1;yy.addClass($3,$5);}
-    | CLASSDEF SPACE alphaNum SPACE stylesOpt
-          {$$ = $1;yy.addClass($3,$5);}
-    ;
-
-classStatement:CLASS SPACE alphaNum SPACE alphaNum
-    {$$ = $1;yy.setClass($3, $5);}
-    ;
-
-clickStatement
-    : CLICK SPACE alphaNum SPACE alphaNum           {$$ = $1;yy.setClickEvent($3, $5, undefined);}
-    | CLICK SPACE alphaNum SPACE alphaNum SPACE STR {$$ = $1;yy.setClickEvent($3, $5, $7)       ;}
-    | CLICK SPACE alphaNum SPACE STR                {$$ = $1;yy.setLink($3, $5, undefined);}
-    | CLICK SPACE alphaNum SPACE STR SPACE STR      {$$ = $1;yy.setLink($3, $5, $7       );}
-    ;
-
-styleStatement:STYLE SPACE alphaNum SPACE stylesOpt
-    {$$ = $1;yy.addVertex($3,undefined,undefined,$5);}
-    | STYLE SPACE HEX SPACE stylesOpt
-          {$$ = $1;yy.updateLink($3,$5);}
-    ;
-
-linkStyleStatement
-    : LINKSTYLE SPACE DEFAULT SPACE stylesOpt
-          {$$ = $1;yy.updateLink([$3],$5);}
-    | LINKSTYLE SPACE numList SPACE stylesOpt
-          {$$ = $1;yy.updateLink($3,$5);}
-    | LINKSTYLE SPACE DEFAULT SPACE INTERPOLATE SPACE alphaNum SPACE stylesOpt
-          {$$ = $1;yy.updateLinkInterpolate([$3],$7);yy.updateLink([$3],$9);}
-    | LINKSTYLE SPACE numList SPACE INTERPOLATE SPACE alphaNum SPACE stylesOpt
-          {$$ = $1;yy.updateLinkInterpolate($3,$7);yy.updateLink($3,$9);}
-    | LINKSTYLE SPACE DEFAULT SPACE INTERPOLATE SPACE alphaNum
-          {$$ = $1;yy.updateLinkInterpolate([$3],$7);}
-    | LINKSTYLE SPACE numList SPACE INTERPOLATE SPACE alphaNum
-          {$$ = $1;yy.updateLinkInterpolate($3,$7);}
-    ;
-
-commentStatement: PCT PCT commentText;
-
-numList: NUM
-        {$$ = [$1]}
-    | numList COMMA NUM
-        {$1.push($3);$$ = $1;}
-    ;
-
-stylesOpt: style
-        {$$ = [$1]}
-    | stylesOpt COMMA style
-        {$1.push($3);$$ = $1;}
-    ;
-
-style: styleComponent
-    |style styleComponent
-    {$$ = $1 + $2;}
-    ;
-
-styleComponent: ALPHA | COLON | MINUS | NUM | UNIT | SPACE | HEX | BRKT | DOT | STYLE | PCT ;
-
-/* Token lists */
-
-commentToken   : textToken | graphCodeTokens ;
-
-textToken      : textNoTagsToken | TAGSTART | TAGEND | '=='  | '--' | PCT | DEFAULT;
-
-textNoTagsToken: alphaNumToken | SPACE | MINUS | keywords ;
-
-alphaNumToken  : ALPHA | PUNCTUATION | UNICODE_TEXT | NUM | COLON | COMMA | PLUS | EQUALS | MULT | DOT | BRKT ;
-
-graphCodeTokens:  PIPE | PS | PE | SQS | SQE | DIAMOND_START | DIAMOND_STOP | TAG_START | TAG_END | ARROW_CROSS | ARROW_POINT | ARROW_CIRCLE | ARROW_OPEN | QUOTE | SEMI ;
-%%

packages/mermaid/src/diagrams/flowchart/types.ts

@@ -0,0 +1,53 @@
+export interface FlowVertex {
+  classes: string[];
+  dir?: string;
+  domId: string;
+  haveCallback?: boolean;
+  id: string;
+  labelType: 'text';
+  link?: string;
+  linkTarget?: string;
+  props?: any;
+  styles: string[];
+  text?: string;
+  type?: string;
+}
+
+export interface FlowText {
+  text: string;
+  type: 'text';
+}
+
+export interface FlowEdge {
+  start: string;
+  end: string;
+  interpolate?: string;
+  type?: string;
+  stroke?: string;
+  style?: string[];
+  length?: number;
+  text: string;
+  labelType: 'text';
+}
+
+export interface FlowClass {
+  id: string;
+  styles: string[];
+  textStyles: string[];
+}
+
+export interface FlowSubGraph {
+  classes: string[];
+  dir?: string;
+  id: string;
+  labelType: string;
+  nodes: string[];
+  title: string;
+}
+
+export interface FlowLink {
+  length?: number;
+  stroke: string;
+  type: string;
+  text?: string;
+}