From e5315f29335da4d0391994bd5b1e38bc4474925c Mon Sep 17 00:00:00 2001
From: Tom PERRILLAT-COLLOMB <tom.perrillat-collomb@protonmail.com>
Date: Mon, 21 Aug 2023 23:33:42 +0200
Subject: [PATCH 1/6] feat(er): add entity name alias

---
 demos/er.html                                 | 14 ++++++++++
 docs/syntax/entityRelationshipDiagram.md      | 28 +++++++++++++++++++
 packages/mermaid/src/diagrams/er/erDb.js      |  4 +--
 .../mermaid/src/diagrams/er/erRenderer.js     |  2 +-
 .../src/diagrams/er/parser/erDiagram.jison    | 10 +++++++
 .../src/diagrams/er/parser/erDiagram.spec.js  |  9 ++++++
 .../docs/syntax/entityRelationshipDiagram.md  | 16 +++++++++++
 7 files changed, 80 insertions(+), 3 deletions(-)

diff --git a/demos/er.html b/demos/er.html
index 49f0a683f0..f1233e19f7 100644
--- a/demos/er.html
+++ b/demos/er.html
@@ -108,6 +108,20 @@
         }
         MANUFACTURER only one to zero or more CAR : makes
     </pre>
+    <hr />
+
+    <pre class="mermaid">
+    erDiagram
+      p as Person {
+        string firstName
+        string lastName
+      }
+      a as "Customer Account" {
+        string email
+      }
+      p ||--o| a : has
+    </pre>
+    <hr />
 
     <script type="module">
       import mermaid from './mermaid.esm.mjs';
diff --git a/docs/syntax/entityRelationshipDiagram.md b/docs/syntax/entityRelationshipDiagram.md
index dd887b0ee2..61976b08b0 100644
--- a/docs/syntax/entityRelationshipDiagram.md
+++ b/docs/syntax/entityRelationshipDiagram.md
@@ -198,6 +198,34 @@ erDiagram
 
 The `type` values must begin with an alphabetic character and may contain digits, hyphens, underscores, parentheses and square brackets. The `name` values follow a similar format to `type`, but may start with an asterisk as another option to indicate an attribute is a primary key. Other than that, there are no restrictions, and there is no implicit set of valid data types.
 
+### Entity Name Aliases
+
+An alias can be added to an entity using `as` keyword. If provided, the alias will be showed in the diagram instead of the entity name.
+
+```mermaid-example
+erDiagram
+    p as Person {
+        string firstName
+        string lastName
+    }
+    a as "Customer Account" {
+        string email
+    }
+    p ||--o| a : has
+```
+
+```mermaid
+erDiagram
+    p as Person {
+        string firstName
+        string lastName
+    }
+    a as "Customer Account" {
+        string email
+    }
+    p ||--o| a : has
+```
+
 #### Attribute Keys and Comments
 
 Attributes may also have a `key` or comment defined. Keys can be `PK`, `FK` or `UK`, for Primary Key, Foreign Key or Unique Key. To specify multiple key constraints on a single attribute, separate them with a comma (e.g., `PK, FK`).. A `comment` is defined by double quotes at the end of an attribute. Comments themselves cannot have double-quote characters in them.
diff --git a/packages/mermaid/src/diagrams/er/erDb.js b/packages/mermaid/src/diagrams/er/erDb.js
index 2f5116cbfe..e863fb5794 100644
--- a/packages/mermaid/src/diagrams/er/erDb.js
+++ b/packages/mermaid/src/diagrams/er/erDb.js
@@ -32,9 +32,9 @@ export const parseDirective = function (statement, context, type) {
   mermaidAPI.parseDirective(this, statement, context, type);
 };
 
-const addEntity = function (name) {
+const addEntity = function (name, alias = undefined) {
   if (entities[name] === undefined) {
-    entities[name] = { attributes: [] };
+    entities[name] = { attributes: [], alias: alias };
     log.info('Added new entity :', name);
   }
 
diff --git a/packages/mermaid/src/diagrams/er/erRenderer.js b/packages/mermaid/src/diagrams/er/erRenderer.js
index b992afd651..3c372ae9b7 100644
--- a/packages/mermaid/src/diagrams/er/erRenderer.js
+++ b/packages/mermaid/src/diagrams/er/erRenderer.js
@@ -326,7 +326,7 @@ const drawEntities = function (svgNode, entities, graph) {
       .style('text-anchor', 'middle')
       .style('font-family', getConfig().fontFamily)
       .style('font-size', conf.fontSize + 'px')
-      .text(entityName);
+      .text(entities[entityName].alias || entityName);
 
     const { width: entityWidth, height: entityHeight } = drawAttributes(
       groupNode,
diff --git a/packages/mermaid/src/diagrams/er/parser/erDiagram.jison b/packages/mermaid/src/diagrams/er/parser/erDiagram.jison
index 0a2549268d..843fd99107 100644
--- a/packages/mermaid/src/diagrams/er/parser/erDiagram.jison
+++ b/packages/mermaid/src/diagrams/er/parser/erDiagram.jison
@@ -62,6 +62,7 @@ o\{                             return 'ZERO_OR_MORE';
 \-\-                            return 'IDENTIFYING';
 "to"                            return 'IDENTIFYING';
 "optionally to"                 return 'NON_IDENTIFYING';
+"as"                            return 'ALIAS';
 \.\-                            return 'NON_IDENTIFYING';
 \-\.                            return 'NON_IDENTIFYING';
 [A-Za-z][A-Za-z0-9\-_]*         return 'ALPHANUM';
@@ -113,6 +114,15 @@ statement
       }
     | entityName BLOCK_START BLOCK_STOP { yy.addEntity($1); }
     | entityName { yy.addEntity($1); }
+    | entityName ALIAS entityName BLOCK_START attributes BLOCK_STOP
+      {
+          /* console.log('detected block'); */
+          yy.addEntity($1, $3);
+          yy.addAttributes($1, $5);
+          /* console.log('handled block'); */
+      }
+    | entityName ALIAS entityName BLOCK_START BLOCK_STOP { yy.addEntity($1, $3); }
+    | entityName ALIAS entityName { yy.addEntity($1, $3); }
     | title title_value  { $$=$2.trim();yy.setAccTitle($$); }
     | acc_title acc_title_value  { $$=$2.trim();yy.setAccTitle($$); }
     | acc_descr acc_descr_value  { $$=$2.trim();yy.setAccDescription($$); }
diff --git a/packages/mermaid/src/diagrams/er/parser/erDiagram.spec.js b/packages/mermaid/src/diagrams/er/parser/erDiagram.spec.js
index 2bf2f5b8c8..c23e31876c 100644
--- a/packages/mermaid/src/diagrams/er/parser/erDiagram.spec.js
+++ b/packages/mermaid/src/diagrams/er/parser/erDiagram.spec.js
@@ -133,6 +133,15 @@ describe('when parsing ER diagram it...', function () {
       const entities = erDb.getEntities();
       expect(entities.hasOwnProperty(hyphensUnderscore)).toBe(true);
     });
+
+    it('can have an alias', function () {
+      const entity = 'foo';
+      const alias = 'bar';
+      erDiagram.parser.parse(`erDiagram\n${entity} as "${alias}"\n`);
+      const entities = erDb.getEntities();
+      expect(entities.hasOwnProperty(entity)).toBe(true);
+      expect(entities[entity].alias).toBe(alias);
+    });
   });
 
   describe('attribute name', () => {
diff --git a/packages/mermaid/src/docs/syntax/entityRelationshipDiagram.md b/packages/mermaid/src/docs/syntax/entityRelationshipDiagram.md
index 7e5fa2711c..4b20e6b2ac 100644
--- a/packages/mermaid/src/docs/syntax/entityRelationshipDiagram.md
+++ b/packages/mermaid/src/docs/syntax/entityRelationshipDiagram.md
@@ -144,6 +144,22 @@ erDiagram
 
 The `type` values must begin with an alphabetic character and may contain digits, hyphens, underscores, parentheses and square brackets. The `name` values follow a similar format to `type`, but may start with an asterisk as another option to indicate an attribute is a primary key. Other than that, there are no restrictions, and there is no implicit set of valid data types.
 
+### Entity Name Aliases
+
+An alias can be added to an entity using `as` keyword. If provided, the alias will be showed in the diagram instead of the entity name.
+
+```mermaid-example
+erDiagram
+    p as Person {
+        string firstName
+        string lastName
+    }
+    a as "Customer Account" {
+        string email
+    }
+    p ||--o| a : has
+```
+
 #### Attribute Keys and Comments
 
 Attributes may also have a `key` or comment defined. Keys can be `PK`, `FK` or `UK`, for Primary Key, Foreign Key or Unique Key. To specify multiple key constraints on a single attribute, separate them with a comma (e.g., `PK, FK`).. A `comment` is defined by double quotes at the end of an attribute. Comments themselves cannot have double-quote characters in them.

From cc8b4572d5fd066c07e1adc3677f5bac76b1a1e0 Mon Sep 17 00:00:00 2001
From: Tom PERRILLAT-COLLOMB <tom.perrillat-collomb@protonmail.com>
Date: Tue, 22 Aug 2023 00:30:33 +0200
Subject: [PATCH 2/6] docs(er): add release version for entity name aliases

---
 docs/syntax/entityRelationshipDiagram.md                      | 2 +-
 packages/mermaid/src/docs/syntax/entityRelationshipDiagram.md | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/syntax/entityRelationshipDiagram.md b/docs/syntax/entityRelationshipDiagram.md
index 61976b08b0..5bc8df436c 100644
--- a/docs/syntax/entityRelationshipDiagram.md
+++ b/docs/syntax/entityRelationshipDiagram.md
@@ -198,7 +198,7 @@ erDiagram
 
 The `type` values must begin with an alphabetic character and may contain digits, hyphens, underscores, parentheses and square brackets. The `name` values follow a similar format to `type`, but may start with an asterisk as another option to indicate an attribute is a primary key. Other than that, there are no restrictions, and there is no implicit set of valid data types.
 
-### Entity Name Aliases
+### Entity Name Aliases (v\<MERMAID_RELEASE_VERSION>+)
 
 An alias can be added to an entity using `as` keyword. If provided, the alias will be showed in the diagram instead of the entity name.
 
diff --git a/packages/mermaid/src/docs/syntax/entityRelationshipDiagram.md b/packages/mermaid/src/docs/syntax/entityRelationshipDiagram.md
index 4b20e6b2ac..71d91bab74 100644
--- a/packages/mermaid/src/docs/syntax/entityRelationshipDiagram.md
+++ b/packages/mermaid/src/docs/syntax/entityRelationshipDiagram.md
@@ -144,7 +144,7 @@ erDiagram
 
 The `type` values must begin with an alphabetic character and may contain digits, hyphens, underscores, parentheses and square brackets. The `name` values follow a similar format to `type`, but may start with an asterisk as another option to indicate an attribute is a primary key. Other than that, there are no restrictions, and there is no implicit set of valid data types.
 
-### Entity Name Aliases
+### Entity Name Aliases (v<MERMAID_RELEASE_VERSION>+)
 
 An alias can be added to an entity using `as` keyword. If provided, the alias will be showed in the diagram instead of the entity name.
 

From a7ae1b68905a5fb1c97cd975d5cce68e3e31b3f0 Mon Sep 17 00:00:00 2001
From: Tom PERRILLAT-COLLOMB <tom.perrillat-collomb@protonmail.com>
Date: Tue, 22 Aug 2023 11:05:09 +0200
Subject: [PATCH 3/6] feat(er): use square brackets to add aliases

---
 demos/er.html                                         | 10 +++++-----
 docs/syntax/entityRelationshipDiagram.md              | 10 +++++-----
 .../mermaid/src/diagrams/er/parser/erDiagram.jison    | 11 ++++++-----
 .../mermaid/src/diagrams/er/parser/erDiagram.spec.js  |  2 +-
 .../src/docs/syntax/entityRelationshipDiagram.md      |  6 +++---
 5 files changed, 20 insertions(+), 19 deletions(-)

diff --git a/demos/er.html b/demos/er.html
index f1233e19f7..eabae6acfa 100644
--- a/demos/er.html
+++ b/demos/er.html
@@ -112,12 +112,12 @@
 
     <pre class="mermaid">
     erDiagram
-      p as Person {
-        string firstName
-        string lastName
+      p[Person] {
+          string firstName
+          string lastName
       }
-      a as "Customer Account" {
-        string email
+      a["Customer Account"] {
+          string email
       }
       p ||--o| a : has
     </pre>
diff --git a/docs/syntax/entityRelationshipDiagram.md b/docs/syntax/entityRelationshipDiagram.md
index 5bc8df436c..ea3b8c0054 100644
--- a/docs/syntax/entityRelationshipDiagram.md
+++ b/docs/syntax/entityRelationshipDiagram.md
@@ -200,15 +200,15 @@ The `type` values must begin with an alphabetic character and may contain digits
 
 ### Entity Name Aliases (v\<MERMAID_RELEASE_VERSION>+)
 
-An alias can be added to an entity using `as` keyword. If provided, the alias will be showed in the diagram instead of the entity name.
+An alias can be added to an entity using square brackets. If provided, the alias will be showed in the diagram instead of the entity name.
 
 ```mermaid-example
 erDiagram
-    p as Person {
+    p[Person] {
         string firstName
         string lastName
     }
-    a as "Customer Account" {
+    a["Customer Account"] {
         string email
     }
     p ||--o| a : has
@@ -216,11 +216,11 @@ erDiagram
 
 ```mermaid
 erDiagram
-    p as Person {
+    p[Person] {
         string firstName
         string lastName
     }
-    a as "Customer Account" {
+    a["Customer Account"] {
         string email
     }
     p ||--o| a : has
diff --git a/packages/mermaid/src/diagrams/er/parser/erDiagram.jison b/packages/mermaid/src/diagrams/er/parser/erDiagram.jison
index 843fd99107..ea8abc21a9 100644
--- a/packages/mermaid/src/diagrams/er/parser/erDiagram.jison
+++ b/packages/mermaid/src/diagrams/er/parser/erDiagram.jison
@@ -35,6 +35,8 @@ accDescr\s*"{"\s*                                { this.begin("acc_descr_multili
 <block>[\n]+                    /* nothing */
 <block>"}"                      { this.popState(); return 'BLOCK_STOP'; }
 <block>.                        return yytext[0];
+"["                             return 'SQS';
+"]"                             return 'SQE';
 
 "one or zero"                   return 'ZERO_OR_ONE';
 "one or more"                   return 'ONE_OR_MORE';
@@ -62,7 +64,6 @@ o\{                             return 'ZERO_OR_MORE';
 \-\-                            return 'IDENTIFYING';
 "to"                            return 'IDENTIFYING';
 "optionally to"                 return 'NON_IDENTIFYING';
-"as"                            return 'ALIAS';
 \.\-                            return 'NON_IDENTIFYING';
 \-\.                            return 'NON_IDENTIFYING';
 [A-Za-z][A-Za-z0-9\-_]*         return 'ALPHANUM';
@@ -114,15 +115,15 @@ statement
       }
     | entityName BLOCK_START BLOCK_STOP { yy.addEntity($1); }
     | entityName { yy.addEntity($1); }
-    | entityName ALIAS entityName BLOCK_START attributes BLOCK_STOP
+    | entityName SQS entityName SQE BLOCK_START attributes BLOCK_STOP
       {
           /* console.log('detected block'); */
           yy.addEntity($1, $3);
-          yy.addAttributes($1, $5);
+          yy.addAttributes($1, $6);
           /* console.log('handled block'); */
       }
-    | entityName ALIAS entityName BLOCK_START BLOCK_STOP { yy.addEntity($1, $3); }
-    | entityName ALIAS entityName { yy.addEntity($1, $3); }
+    | entityName SQS entityName SQE BLOCK_START BLOCK_STOP { yy.addEntity($1, $3); }
+    | entityName SQS entityName SQE { yy.addEntity($1, $3); }
     | title title_value  { $$=$2.trim();yy.setAccTitle($$); }
     | acc_title acc_title_value  { $$=$2.trim();yy.setAccTitle($$); }
     | acc_descr acc_descr_value  { $$=$2.trim();yy.setAccDescription($$); }
diff --git a/packages/mermaid/src/diagrams/er/parser/erDiagram.spec.js b/packages/mermaid/src/diagrams/er/parser/erDiagram.spec.js
index c23e31876c..a480e50e53 100644
--- a/packages/mermaid/src/diagrams/er/parser/erDiagram.spec.js
+++ b/packages/mermaid/src/diagrams/er/parser/erDiagram.spec.js
@@ -137,7 +137,7 @@ describe('when parsing ER diagram it...', function () {
     it('can have an alias', function () {
       const entity = 'foo';
       const alias = 'bar';
-      erDiagram.parser.parse(`erDiagram\n${entity} as "${alias}"\n`);
+      erDiagram.parser.parse(`erDiagram\n${entity}["${alias}"]\n`);
       const entities = erDb.getEntities();
       expect(entities.hasOwnProperty(entity)).toBe(true);
       expect(entities[entity].alias).toBe(alias);
diff --git a/packages/mermaid/src/docs/syntax/entityRelationshipDiagram.md b/packages/mermaid/src/docs/syntax/entityRelationshipDiagram.md
index 71d91bab74..f2a5d5481f 100644
--- a/packages/mermaid/src/docs/syntax/entityRelationshipDiagram.md
+++ b/packages/mermaid/src/docs/syntax/entityRelationshipDiagram.md
@@ -146,15 +146,15 @@ The `type` values must begin with an alphabetic character and may contain digits
 
 ### Entity Name Aliases (v<MERMAID_RELEASE_VERSION>+)
 
-An alias can be added to an entity using `as` keyword. If provided, the alias will be showed in the diagram instead of the entity name.
+An alias can be added to an entity using square brackets. If provided, the alias will be showed in the diagram instead of the entity name.
 
 ```mermaid-example
 erDiagram
-    p as Person {
+    p[Person] {
         string firstName
         string lastName
     }
-    a as "Customer Account" {
+    a["Customer Account"] {
         string email
     }
     p ||--o| a : has

From 4a06bc1a68ef2b425ed933989e5d29b3d80c6c47 Mon Sep 17 00:00:00 2001
From: Tom PERRILLAT-COLLOMB <tom.perrillat-collomb@protonmail.com>
Date: Tue, 22 Aug 2023 13:36:25 +0200
Subject: [PATCH 4/6] test(er): add cypress test on entity name alias

---
 cypress/integration/rendering/erDiagram.spec.js | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/cypress/integration/rendering/erDiagram.spec.js b/cypress/integration/rendering/erDiagram.spec.js
index 28c6191c8e..578f5a3984 100644
--- a/cypress/integration/rendering/erDiagram.spec.js
+++ b/cypress/integration/rendering/erDiagram.spec.js
@@ -305,4 +305,21 @@ ORDER ||--|{ LINE-ITEM : contains
       {}
     );
   });
+
+  it('should render entities with entity name aliases', () => {
+    imgSnapshotTest(
+      `
+    erDiagram
+      p[Person] {
+        varchar(64) firstName
+        varchar(64) lastName
+      }
+      c["Customer Account"] {
+        varchar(128) email
+      }
+      p ||--o| c : has
+      `,
+      { logLevel: 1 }
+    );
+  });
 });

From 56419f7459ad8438bc1e5fe22c850c001183d538 Mon Sep 17 00:00:00 2001
From: Tom PERRILLAT-COLLOMB <tom.perrillat-collomb@protonmail.com>
Date: Thu, 24 Aug 2023 16:07:02 +0200
Subject: [PATCH 5/6] fix(er): bug if relationship is declared first

---
 packages/mermaid/src/diagrams/er/erDb.js      |  3 ++
 .../mermaid/src/diagrams/er/erRenderer.js     |  2 +-
 .../src/diagrams/er/parser/erDiagram.jison    |  5 ----
 .../src/diagrams/er/parser/erDiagram.spec.js  | 28 +++++++++++++++++++
 4 files changed, 32 insertions(+), 6 deletions(-)

diff --git a/packages/mermaid/src/diagrams/er/erDb.js b/packages/mermaid/src/diagrams/er/erDb.js
index e863fb5794..2f412f7dd8 100644
--- a/packages/mermaid/src/diagrams/er/erDb.js
+++ b/packages/mermaid/src/diagrams/er/erDb.js
@@ -36,6 +36,9 @@ const addEntity = function (name, alias = undefined) {
   if (entities[name] === undefined) {
     entities[name] = { attributes: [], alias: alias };
     log.info('Added new entity :', name);
+  } else if (entities[name] && !entities[name].alias && alias) {
+    entities[name].alias = alias;
+    log.info(`Add alias '${alias}' to entity '${name}'`);
   }
 
   return entities[name];
diff --git a/packages/mermaid/src/diagrams/er/erRenderer.js b/packages/mermaid/src/diagrams/er/erRenderer.js
index 3c372ae9b7..0c19d491b6 100644
--- a/packages/mermaid/src/diagrams/er/erRenderer.js
+++ b/packages/mermaid/src/diagrams/er/erRenderer.js
@@ -326,7 +326,7 @@ const drawEntities = function (svgNode, entities, graph) {
       .style('text-anchor', 'middle')
       .style('font-family', getConfig().fontFamily)
       .style('font-size', conf.fontSize + 'px')
-      .text(entities[entityName].alias || entityName);
+      .text(entities[entityName].alias ?? entityName);
 
     const { width: entityWidth, height: entityHeight } = drawAttributes(
       groupNode,
diff --git a/packages/mermaid/src/diagrams/er/parser/erDiagram.jison b/packages/mermaid/src/diagrams/er/parser/erDiagram.jison
index ea8abc21a9..4abc6557cc 100644
--- a/packages/mermaid/src/diagrams/er/parser/erDiagram.jison
+++ b/packages/mermaid/src/diagrams/er/parser/erDiagram.jison
@@ -104,23 +104,18 @@ statement
           yy.addEntity($1);
           yy.addEntity($3);
           yy.addRelationship($1, $5, $3, $2);
-          /*console.log($1 + $2 + $3 + ':' + $5);*/
       }
     | entityName BLOCK_START attributes BLOCK_STOP
       {
-          /* console.log('detected block'); */
           yy.addEntity($1);
           yy.addAttributes($1, $3);
-          /* console.log('handled block'); */
       }
     | entityName BLOCK_START BLOCK_STOP { yy.addEntity($1); }
     | entityName { yy.addEntity($1); }
     | entityName SQS entityName SQE BLOCK_START attributes BLOCK_STOP
       {
-          /* console.log('detected block'); */
           yy.addEntity($1, $3);
           yy.addAttributes($1, $6);
-          /* console.log('handled block'); */
       }
     | entityName SQS entityName SQE BLOCK_START BLOCK_STOP { yy.addEntity($1, $3); }
     | entityName SQS entityName SQE { yy.addEntity($1, $3); }
diff --git a/packages/mermaid/src/diagrams/er/parser/erDiagram.spec.js b/packages/mermaid/src/diagrams/er/parser/erDiagram.spec.js
index a480e50e53..6b0865a2d4 100644
--- a/packages/mermaid/src/diagrams/er/parser/erDiagram.spec.js
+++ b/packages/mermaid/src/diagrams/er/parser/erDiagram.spec.js
@@ -142,6 +142,34 @@ describe('when parsing ER diagram it...', function () {
       expect(entities.hasOwnProperty(entity)).toBe(true);
       expect(entities[entity].alias).toBe(alias);
     });
+
+    it('can have an alias even if the relationship is defined before class', function () {
+      const firstEntity = 'foo';
+      const secondEntity = 'bar';
+      const alias = 'batman';
+      erDiagram.parser.parse(
+        `erDiagram\n${firstEntity} ||--o| ${secondEntity} : rel\nclass ${firstEntity}["${alias}"]\n`
+      );
+      const entities = erDb.getEntities();
+      expect(entities.hasOwnProperty(firstEntity)).toBe(true);
+      expect(entities.hasOwnProperty(secondEntity)).toBe(true);
+      expect(entities[firstEntity].alias).toBe(alias);
+      expect(entities[secondEntity].alias).toBeUndefined();
+    });
+
+    it('can have an alias even if the relationship is defined after class', function () {
+      const firstEntity = 'foo';
+      const secondEntity = 'bar';
+      const alias = 'batman';
+      erDiagram.parser.parse(
+        `erDiagram\nclass ${firstEntity}["${alias}"]\n${firstEntity} ||--o| ${secondEntity} : rel\n`
+      );
+      const entities = erDb.getEntities();
+      expect(entities.hasOwnProperty(firstEntity)).toBe(true);
+      expect(entities.hasOwnProperty(secondEntity)).toBe(true);
+      expect(entities[firstEntity].alias).toBe(alias);
+      expect(entities[secondEntity].alias).toBeUndefined();
+    });
   });
 
   describe('attribute name', () => {

From 60ed7d327306c3dd54d4591e0c0d7ffb5463cccd Mon Sep 17 00:00:00 2001
From: Sidharth Vinod <sidharthv96@gmail.com>
Date: Sat, 26 Aug 2023 23:43:27 +0530
Subject: [PATCH 6/6] chore: Increase heap size when building

---
 scripts/editor.bash | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/scripts/editor.bash b/scripts/editor.bash
index 3ae51ed335..b43703d1be 100755
--- a/scripts/editor.bash
+++ b/scripts/editor.bash
@@ -1,6 +1,12 @@
 #!/usr/bin/env bash
 
+# Fail on errors
 set -euxo pipefail
+
+# Increase heap size
+export NODE_OPTIONS="--max_old_space_size=4096"
+
+# Build mermaid
 pnpm build
 
 # Clone the Mermaid Live Editor repository