diff --git a/src/mermaid.js b/src/mermaid.js
index ebfc87532..76b644ef2 100644
--- a/src/mermaid.js
+++ b/src/mermaid.js
@@ -2,10 +2,10 @@
  * Web page integration module for the mermaid framework. It uses the mermaidAPI for mermaid functionality and to render
  * the diagrams to svg code.
  */
-import he from 'he'
+import he from 'he';
 
-import mermaidAPI from './mermaidAPI'
-import { logger } from './logger'
+import mermaidAPI from './mermaidAPI';
+import { logger } from './logger';
 
 /**
  * ## init
@@ -28,126 +28,142 @@ import { logger } from './logger'
  * Renders the mermaid diagrams
  * @param nodes a css selector or an array of nodes
  */
-const init = function () {
-  const conf = mermaidAPI.getConfig()
-  logger.debug('Starting rendering diagrams')
-  let nodes
+const init = function() {
+  const conf = mermaidAPI.getConfig();
+  logger.debug('Starting rendering diagrams');
+  let nodes;
   if (arguments.length >= 2) {
     /*! sequence config was passed as #1 */
     if (typeof arguments[0] !== 'undefined') {
-      mermaid.sequenceConfig = arguments[0]
+      mermaid.sequenceConfig = arguments[0];
     }
 
-    nodes = arguments[1]
+    nodes = arguments[1];
   } else {
-    nodes = arguments[0]
+    nodes = arguments[0];
   }
 
   // if last argument is a function this is the callback function
-  let callback
+  let callback;
   if (typeof arguments[arguments.length - 1] === 'function') {
-    callback = arguments[arguments.length - 1]
-    logger.debug('Callback function found')
+    callback = arguments[arguments.length - 1];
+    logger.debug('Callback function found');
   } else {
     if (typeof conf.mermaid !== 'undefined') {
       if (typeof conf.mermaid.callback === 'function') {
-        callback = conf.mermaid.callback
-        logger.debug('Callback function found')
+        callback = conf.mermaid.callback;
+        logger.debug('Callback function found');
       } else {
-        logger.debug('No Callback function found')
+        logger.debug('No Callback function found');
       }
     }
   }
-  nodes = nodes === undefined ? document.querySelectorAll('.mermaid')
-    : typeof nodes === 'string' ? document.querySelectorAll(nodes)
-      : nodes instanceof window.Node ? [nodes]
-        : nodes // Last case  - sequence config was passed pick next
+  nodes =
+    nodes === undefined
+      ? document.querySelectorAll('.mermaid')
+      : typeof nodes === 'string'
+      ? document.querySelectorAll(nodes)
+      : nodes instanceof window.Node
+      ? [nodes]
+      : nodes; // Last case  - sequence config was passed pick next
 
-  logger.debug('Start On Load before: ' + mermaid.startOnLoad)
+  logger.debug('Start On Load before: ' + mermaid.startOnLoad);
   if (typeof mermaid.startOnLoad !== 'undefined') {
-    logger.debug('Start On Load inner: ' + mermaid.startOnLoad)
-    mermaidAPI.initialize({ startOnLoad: mermaid.startOnLoad })
+    logger.debug('Start On Load inner: ' + mermaid.startOnLoad);
+    mermaidAPI.initialize({ startOnLoad: mermaid.startOnLoad });
   }
 
   if (typeof mermaid.ganttConfig !== 'undefined') {
-    mermaidAPI.initialize({ gantt: mermaid.ganttConfig })
+    mermaidAPI.initialize({ gantt: mermaid.ganttConfig });
   }
 
-  let txt
+  let txt;
 
   for (let i = 0; i < nodes.length; i++) {
-    const element = nodes[i]
+    const element = nodes[i];
 
     /*! Check if previously processed */
     if (!element.getAttribute('data-processed')) {
-      element.setAttribute('data-processed', true)
+      element.setAttribute('data-processed', true);
     } else {
-      continue
+      continue;
     }
 
-    const id = `mermaid-${Date.now()}`
+    const id = `mermaid-${Date.now()}`;
 
     // Fetch the graph definition including tags
-    txt = element.innerHTML
+    txt = element.innerHTML;
 
     // transforms the html to pure text
-    txt = he.decode(txt).trim().replace(/<br>/ig, '<br/>')
+    txt = he
+      .decode(txt)
+      .trim()
+      .replace(/<br>/gi, '<br/>');
 
-    mermaidAPI.render(id, txt, (svgCode, bindFunctions) => {
-      element.innerHTML = svgCode
-      if (typeof callback !== 'undefined') {
-        callback(id)
-      }
-      if (bindFunctions) bindFunctions(element)
-    }, element)
+    mermaidAPI.render(
+      id,
+      txt,
+      (svgCode, bindFunctions) => {
+        element.innerHTML = svgCode;
+        if (typeof callback !== 'undefined') {
+          callback(id);
+        }
+        if (bindFunctions) bindFunctions(element);
+      },
+      element
+    );
   }
-}
+};
 
-const initialize = function (config) {
-  logger.debug('Initializing mermaid ')
+const initialize = function(config) {
+  logger.debug('Initializing mermaid ');
   if (typeof config.mermaid !== 'undefined') {
     if (typeof config.mermaid.startOnLoad !== 'undefined') {
-      mermaid.startOnLoad = config.mermaid.startOnLoad
+      mermaid.startOnLoad = config.mermaid.startOnLoad;
     }
     if (typeof config.mermaid.htmlLabels !== 'undefined') {
-      mermaid.htmlLabels = config.mermaid.htmlLabels
+      mermaid.htmlLabels = config.mermaid.htmlLabels;
     }
   }
-  mermaidAPI.initialize(config)
-}
+  mermaidAPI.initialize(config);
+};
 
 /**
  * ##contentLoaded
  * Callback function that is called when page is loaded. This functions fetches configuration for mermaid rendering and
  * calls init for rendering the mermaid diagrams on the page.
  */
-const contentLoaded = function () {
-  let config
+const contentLoaded = function() {
+  let config;
 
   if (mermaid.startOnLoad) {
     // No config found, do check API config
-    config = mermaidAPI.getConfig()
+    config = mermaidAPI.getConfig();
     if (config.startOnLoad) {
-      mermaid.init()
+      mermaid.init();
     }
   } else {
     if (typeof mermaid.startOnLoad === 'undefined') {
-      logger.debug('In start, no config')
-      config = mermaidAPI.getConfig()
+      logger.debug('In start, no config');
+      config = mermaidAPI.getConfig();
       if (config.startOnLoad) {
-        mermaid.init()
+        mermaid.init();
       }
     }
   }
-}
+};
 
 if (typeof document !== 'undefined') {
   /*!
    * Wait for document loaded before starting the execution
    */
-  window.addEventListener('load', function () {
-    contentLoaded()
-  }, false)
+  window.addEventListener(
+    'load',
+    function() {
+      contentLoaded();
+    },
+    false
+  );
 }
 
 const mermaid = {
@@ -162,6 +178,6 @@ const mermaid = {
   initialize,
 
   contentLoaded
-}
+};
 
-export default mermaid
+export default mermaid;
diff --git a/src/mermaid.spec.js b/src/mermaid.spec.js
index 996ad21f5..8bfbc1995 100644
--- a/src/mermaid.spec.js
+++ b/src/mermaid.spec.js
@@ -1,195 +1,200 @@
 /* eslint-env jasmine */
-import mermaid from './mermaid'
-import flowDb from './diagrams/flowchart/flowDb'
-import flowParser from './diagrams/flowchart/parser/flow'
-import flowRenderer from './diagrams/flowchart/flowRenderer'
+import mermaid from './mermaid';
+import flowDb from './diagrams/flowchart/flowDb';
+import flowParser from './diagrams/flowchart/parser/flow';
+import flowRenderer from './diagrams/flowchart/flowRenderer';
 
-describe('when using mermaid and ', function () {
-  describe('when detecting chart type ', function () {
-    it('should not start rendering with mermaid.startOnLoad set to false', function () {
-      mermaid.startOnLoad = false
-      document.body.innerHTML = '<div class="mermaid">graph TD;\na;</div>'
-      spyOn(mermaid, 'init')
-      mermaid.contentLoaded()
-      expect(mermaid.init).not.toHaveBeenCalled()
-    })
+describe('when using mermaid and ', function() {
+  describe('when detecting chart type ', function() {
+    it('should not start rendering with mermaid.startOnLoad set to false', function() {
+      mermaid.startOnLoad = false;
+      document.body.innerHTML = '<div class="mermaid">graph TD;\na;</div>';
+      spyOn(mermaid, 'init');
+      mermaid.contentLoaded();
+      expect(mermaid.init).not.toHaveBeenCalled();
+    });
 
-    it('should start rendering with both startOnLoad set', function () {
-      mermaid.startOnLoad = true
-      document.body.innerHTML = '<div class="mermaid">graph TD;\na;</div>'
-      spyOn(mermaid, 'init')
-      mermaid.contentLoaded()
-      expect(mermaid.init).toHaveBeenCalled()
-    })
+    it('should start rendering with both startOnLoad set', function() {
+      mermaid.startOnLoad = true;
+      document.body.innerHTML = '<div class="mermaid">graph TD;\na;</div>';
+      spyOn(mermaid, 'init');
+      mermaid.contentLoaded();
+      expect(mermaid.init).toHaveBeenCalled();
+    });
 
-    it('should start rendering with mermaid.startOnLoad', function () {
-      mermaid.startOnLoad = true
-      document.body.innerHTML = '<div class="mermaid">graph TD;\na;</div>'
-      spyOn(mermaid, 'init')
-      mermaid.contentLoaded()
-      expect(mermaid.init).toHaveBeenCalled()
-    })
+    it('should start rendering with mermaid.startOnLoad', function() {
+      mermaid.startOnLoad = true;
+      document.body.innerHTML = '<div class="mermaid">graph TD;\na;</div>';
+      spyOn(mermaid, 'init');
+      mermaid.contentLoaded();
+      expect(mermaid.init).toHaveBeenCalled();
+    });
 
-    it('should start rendering as a default with no changes performed', function () {
-      document.body.innerHTML = '<div class="mermaid">graph TD;\na;</div>'
-      spyOn(mermaid, 'init')
-      mermaid.contentLoaded()
-      expect(mermaid.init).toHaveBeenCalled()
-    })
-  })
+    it('should start rendering as a default with no changes performed', function() {
+      document.body.innerHTML = '<div class="mermaid">graph TD;\na;</div>';
+      spyOn(mermaid, 'init');
+      mermaid.contentLoaded();
+      expect(mermaid.init).toHaveBeenCalled();
+    });
+  });
 
-  describe('when calling addEdges ', function () {
-    beforeEach(function () {
-      flowParser.parser.yy = flowDb
-      flowDb.clear()
-    })
-    it('it should handle edges with text', function () {
-      flowParser.parser.parse('graph TD;A-->|text ex|B;')
-      flowParser.parser.yy.getVertices()
-      const edges = flowParser.parser.yy.getEdges()
+  describe('when calling addEdges ', function() {
+    beforeEach(function() {
+      flowParser.parser.yy = flowDb;
+      flowDb.clear();
+    });
+    it('it should handle edges with text', function() {
+      flowParser.parser.parse('graph TD;A-->|text ex|B;');
+      flowParser.parser.yy.getVertices();
+      const edges = flowParser.parser.yy.getEdges();
 
       const mockG = {
-        setEdge: function (start, end, options) {
-          expect(start).toBe('A')
-          expect(end).toBe('B')
-          expect(options.arrowhead).toBe('normal')
-          expect(options.label.match('text ex')).toBeTruthy()
+        setEdge: function(start, end, options) {
+          expect(start).toBe('A');
+          expect(end).toBe('B');
+          expect(options.arrowhead).toBe('normal');
+          expect(options.label.match('text ex')).toBeTruthy();
         }
-      }
+      };
 
-      flowRenderer.addEdges(edges, mockG)
-    })
+      flowRenderer.addEdges(edges, mockG);
+    });
 
-    it('should handle edges without text', function () {
-      flowParser.parser.parse('graph TD;A-->B;')
-      flowParser.parser.yy.getVertices()
-      const edges = flowParser.parser.yy.getEdges()
+    it('should handle edges without text', function() {
+      flowParser.parser.parse('graph TD;A-->B;');
+      flowParser.parser.yy.getVertices();
+      const edges = flowParser.parser.yy.getEdges();
 
       const mockG = {
-        setEdge: function (start, end, options) {
-          expect(start).toBe('A')
-          expect(end).toBe('B')
-          expect(options.arrowhead).toBe('normal')
+        setEdge: function(start, end, options) {
+          expect(start).toBe('A');
+          expect(end).toBe('B');
+          expect(options.arrowhead).toBe('normal');
         }
-      }
+      };
 
-      flowRenderer.addEdges(edges, mockG)
-    })
+      flowRenderer.addEdges(edges, mockG);
+    });
 
-    it('should handle open-ended edges', function () {
-      flowParser.parser.parse('graph TD;A---B;')
-      flowParser.parser.yy.getVertices()
-      const edges = flowParser.parser.yy.getEdges()
+    it('should handle open-ended edges', function() {
+      flowParser.parser.parse('graph TD;A---B;');
+      flowParser.parser.yy.getVertices();
+      const edges = flowParser.parser.yy.getEdges();
 
       const mockG = {
-        setEdge: function (start, end, options) {
-          expect(start).toBe('A')
-          expect(end).toBe('B')
-          expect(options.arrowhead).toBe('none')
+        setEdge: function(start, end, options) {
+          expect(start).toBe('A');
+          expect(end).toBe('B');
+          expect(options.arrowhead).toBe('none');
         }
-      }
+      };
 
-      flowRenderer.addEdges(edges, mockG)
-    })
+      flowRenderer.addEdges(edges, mockG);
+    });
 
-    it('should handle edges with styles defined', function () {
-      flowParser.parser.parse('graph TD;A---B; linkStyle 0 stroke:val1,stroke-width:val2;')
-      flowParser.parser.yy.getVertices()
-      const edges = flowParser.parser.yy.getEdges()
+    it('should handle edges with styles defined', function() {
+      flowParser.parser.parse('graph TD;A---B; linkStyle 0 stroke:val1,stroke-width:val2;');
+      flowParser.parser.yy.getVertices();
+      const edges = flowParser.parser.yy.getEdges();
 
       const mockG = {
-        setEdge: function (start, end, options) {
-          expect(start).toBe('A')
-          expect(end).toBe('B')
-          expect(options.arrowhead).toBe('none')
-          expect(options.style).toBe('stroke:val1;stroke-width:val2;fill:none;')
+        setEdge: function(start, end, options) {
+          expect(start).toBe('A');
+          expect(end).toBe('B');
+          expect(options.arrowhead).toBe('none');
+          expect(options.style).toBe('stroke:val1;stroke-width:val2;fill:none;');
         }
-      }
+      };
 
-      flowRenderer.addEdges(edges, mockG)
-    })
-    it('should handle edges with interpolation defined', function () {
-      flowParser.parser.parse('graph TD;A---B; linkStyle 0 interpolate basis')
-      flowParser.parser.yy.getVertices()
-      const edges = flowParser.parser.yy.getEdges()
+      flowRenderer.addEdges(edges, mockG);
+    });
+    it('should handle edges with interpolation defined', function() {
+      flowParser.parser.parse('graph TD;A---B; linkStyle 0 interpolate basis');
+      flowParser.parser.yy.getVertices();
+      const edges = flowParser.parser.yy.getEdges();
 
       const mockG = {
-        setEdge: function (start, end, options) {
-          expect(start).toBe('A')
-          expect(end).toBe('B')
-          expect(options.arrowhead).toBe('none')
-          expect(options.curve).toBe('basis') // mocked as string
+        setEdge: function(start, end, options) {
+          expect(start).toBe('A');
+          expect(end).toBe('B');
+          expect(options.arrowhead).toBe('none');
+          expect(options.curve).toBe('basis'); // mocked as string
         }
-      }
+      };
 
-      flowRenderer.addEdges(edges, mockG)
-    })
-    it('should handle edges with text and styles defined', function () {
-      flowParser.parser.parse('graph TD;A---|the text|B; linkStyle 0 stroke:val1,stroke-width:val2;')
-      flowParser.parser.yy.getVertices()
-      const edges = flowParser.parser.yy.getEdges()
+      flowRenderer.addEdges(edges, mockG);
+    });
+    it('should handle edges with text and styles defined', function() {
+      flowParser.parser.parse(
+        'graph TD;A---|the text|B; linkStyle 0 stroke:val1,stroke-width:val2;'
+      );
+      flowParser.parser.yy.getVertices();
+      const edges = flowParser.parser.yy.getEdges();
 
       const mockG = {
-        setEdge: function (start, end, options) {
-          expect(start).toBe('A')
-          expect(end).toBe('B')
-          expect(options.arrowhead).toBe('none')
-          expect(options.label.match('the text')).toBeTruthy()
-          expect(options.style).toBe('stroke:val1;stroke-width:val2;fill:none;')
+        setEdge: function(start, end, options) {
+          expect(start).toBe('A');
+          expect(end).toBe('B');
+          expect(options.arrowhead).toBe('none');
+          expect(options.label.match('the text')).toBeTruthy();
+          expect(options.style).toBe('stroke:val1;stroke-width:val2;fill:none;');
         }
-      }
+      };
 
-      flowRenderer.addEdges(edges, mockG)
-    })
+      flowRenderer.addEdges(edges, mockG);
+    });
 
-    it('should set fill to "none" by default when handling edges', function () {
-      flowParser.parser.parse('graph TD;A---B; linkStyle 0 stroke:val1,stroke-width:val2;')
-      flowParser.parser.yy.getVertices()
-      const edges = flowParser.parser.yy.getEdges()
+    it('should set fill to "none" by default when handling edges', function() {
+      flowParser.parser.parse('graph TD;A---B; linkStyle 0 stroke:val1,stroke-width:val2;');
+      flowParser.parser.yy.getVertices();
+      const edges = flowParser.parser.yy.getEdges();
 
       const mockG = {
-        setEdge: function (start, end, options) {
-          expect(start).toBe('A')
-          expect(end).toBe('B')
-          expect(options.arrowhead).toBe('none')
-          expect(options.style).toBe('stroke:val1;stroke-width:val2;fill:none;')
+        setEdge: function(start, end, options) {
+          expect(start).toBe('A');
+          expect(end).toBe('B');
+          expect(options.arrowhead).toBe('none');
+          expect(options.style).toBe('stroke:val1;stroke-width:val2;fill:none;');
         }
-      }
+      };
 
-      flowRenderer.addEdges(edges, mockG)
-    })
+      flowRenderer.addEdges(edges, mockG);
+    });
 
-    it('should not set fill to none if fill is set in linkStyle', function () {
-      flowParser.parser.parse('graph TD;A---B; linkStyle 0 stroke:val1,stroke-width:val2,fill:blue;')
-      flowParser.parser.yy.getVertices()
-      const edges = flowParser.parser.yy.getEdges()
+    it('should not set fill to none if fill is set in linkStyle', function() {
+      flowParser.parser.parse(
+        'graph TD;A---B; linkStyle 0 stroke:val1,stroke-width:val2,fill:blue;'
+      );
+      flowParser.parser.yy.getVertices();
+      const edges = flowParser.parser.yy.getEdges();
       const mockG = {
-        setEdge: function (start, end, options) {
-          expect(start).toBe('A')
-          expect(end).toBe('B')
-          expect(options.arrowhead).toBe('none')
-          expect(options.style).toBe('stroke:val1;stroke-width:val2;fill:blue;')
+        setEdge: function(start, end, options) {
+          expect(start).toBe('A');
+          expect(end).toBe('B');
+          expect(options.arrowhead).toBe('none');
+          expect(options.style).toBe('stroke:val1;stroke-width:val2;fill:blue;');
         }
-      }
+      };
 
-      flowRenderer.addEdges(edges, mockG)
-    })
-  })
+      flowRenderer.addEdges(edges, mockG);
+    });
+  });
 
-  describe('checking validity of input ', function () {
-    it('it should throw for an invalid definiton', function () {
-      expect(() => mermaid.parse('this is not a mermaid diagram definition')).toThrow()
-    })
+  describe('checking validity of input ', function() {
+    it('it should throw for an invalid definiton', function() {
+      expect(() => mermaid.parse('this is not a mermaid diagram definition')).toThrow();
+    });
 
-    it('it should not throw for a valid flow definition', function () {
-      expect(() => mermaid.parse('graph TD;A--x|text including URL space|B;')).not.toThrow()
-    })
-    it('it should throw for an invalid flow definition', function () {
-      expect(() => mermaid.parse('graph TQ;A--x|text including URL space|B;')).toThrow()
-    })
+    it('it should not throw for a valid flow definition', function() {
+      expect(() => mermaid.parse('graph TD;A--x|text including URL space|B;')).not.toThrow();
+    });
+    it('it should throw for an invalid flow definition', function() {
+      expect(() => mermaid.parse('graph TQ;A--x|text including URL space|B;')).toThrow();
+    });
 
-    it('it should not throw for a valid sequenceDiagram definition', function () {
-      const text = 'sequenceDiagram\n' +
+    it('it should not throw for a valid sequenceDiagram definition', function() {
+      const text =
+        'sequenceDiagram\n' +
         'Alice->Bob: Hello Bob, how are you?\n\n' +
         '%% Comment\n' +
         'Note right of Bob: Bob thinks\n' +
@@ -197,12 +202,13 @@ describe('when using mermaid and ', function () {
         'Bob-->Alice: I am good thanks!\n' +
         'else isSick\n' +
         'Bob-->Alice: Feel sick...\n' +
-        'end'
-      expect(() => mermaid.parse(text)).not.toThrow()
-    })
+        'end';
+      expect(() => mermaid.parse(text)).not.toThrow();
+    });
 
-    it('it should throw for an invalid sequenceDiagram definition', function () {
-      const text = 'sequenceDiagram\n' +
+    it('it should throw for an invalid sequenceDiagram definition', function() {
+      const text =
+        'sequenceDiagram\n' +
         'Alice:->Bob: Hello Bob, how are you?\n\n' +
         '%% Comment\n' +
         'Note right of Bob: Bob thinks\n' +
@@ -210,8 +216,8 @@ describe('when using mermaid and ', function () {
         'Bob-->Alice: I am good thanks!\n' +
         'else isSick\n' +
         'Bob-->Alice: Feel sick...\n' +
-        'end'
-      expect(() => mermaid.parse(text)).toThrow()
-    })
-  })
-})
+        'end';
+      expect(() => mermaid.parse(text)).toThrow();
+    });
+  });
+});
diff --git a/src/mermaidAPI.js b/src/mermaidAPI.js
index 522bdafbd..855d16b7f 100644
--- a/src/mermaidAPI.js
+++ b/src/mermaidAPI.js
@@ -9,38 +9,38 @@
  * In addition to the render function, a number of behavioral configuration options are available.
  *
  * @name mermaidAPI
-*/
-import * as d3 from 'd3'
-import scope from 'scope-css'
-import pkg from '../package.json'
-import { setConfig, getConfig } from './config'
-import { logger, setLogLevel } from './logger'
-import utils from './utils'
-import flowRenderer from './diagrams/flowchart/flowRenderer'
-import flowParser from './diagrams/flowchart/parser/flow'
-import flowDb from './diagrams/flowchart/flowDb'
-import sequenceRenderer from './diagrams/sequence/sequenceRenderer'
-import sequenceParser from './diagrams/sequence/parser/sequenceDiagram'
-import sequenceDb from './diagrams/sequence/sequenceDb'
-import ganttRenderer from './diagrams/gantt/ganttRenderer'
-import ganttParser from './diagrams/gantt/parser/gantt'
-import ganttDb from './diagrams/gantt/ganttDb'
-import classRenderer from './diagrams/class/classRenderer'
-import classParser from './diagrams/class/parser/classDiagram'
-import classDb from './diagrams/class/classDb'
-import gitGraphRenderer from './diagrams/git/gitGraphRenderer'
-import gitGraphParser from './diagrams/git/parser/gitGraph'
-import gitGraphAst from './diagrams/git/gitGraphAst'
-import infoRenderer from './diagrams/info/infoRenderer'
-import infoParser from './diagrams/info/parser/info'
-import infoDb from './diagrams/info/infoDb'
-import pieRenderer from './diagrams/pie/pieRenderer'
-import pieParser from './diagrams/pie/parser/pie'
-import pieDb from './diagrams/pie/pieDb'
+ */
+import * as d3 from 'd3';
+import scope from 'scope-css';
+import pkg from '../package.json';
+import { setConfig, getConfig } from './config';
+import { logger, setLogLevel } from './logger';
+import utils from './utils';
+import flowRenderer from './diagrams/flowchart/flowRenderer';
+import flowParser from './diagrams/flowchart/parser/flow';
+import flowDb from './diagrams/flowchart/flowDb';
+import sequenceRenderer from './diagrams/sequence/sequenceRenderer';
+import sequenceParser from './diagrams/sequence/parser/sequenceDiagram';
+import sequenceDb from './diagrams/sequence/sequenceDb';
+import ganttRenderer from './diagrams/gantt/ganttRenderer';
+import ganttParser from './diagrams/gantt/parser/gantt';
+import ganttDb from './diagrams/gantt/ganttDb';
+import classRenderer from './diagrams/class/classRenderer';
+import classParser from './diagrams/class/parser/classDiagram';
+import classDb from './diagrams/class/classDb';
+import gitGraphRenderer from './diagrams/git/gitGraphRenderer';
+import gitGraphParser from './diagrams/git/parser/gitGraph';
+import gitGraphAst from './diagrams/git/gitGraphAst';
+import infoRenderer from './diagrams/info/infoRenderer';
+import infoParser from './diagrams/info/parser/info';
+import infoDb from './diagrams/info/infoDb';
+import pieRenderer from './diagrams/pie/pieRenderer';
+import pieParser from './diagrams/pie/parser/pie';
+import pieDb from './diagrams/pie/pieDb';
 
-const themes = {}
+const themes = {};
 for (const themeName of ['default', 'forest', 'dark', 'neutral']) {
-  themes[themeName] = require(`./themes/${themeName}/index.scss`)
+  themes[themeName] = require(`./themes/${themeName}/index.scss`);
 }
 
 /**
@@ -75,22 +75,21 @@ for (const themeName of ['default', 'forest', 'dark', 'neutral']) {
  * @name Configuration
  */
 const config = {
-
   /** theme , the CSS style sheet
-  *
-  * **theme** - Choose one of the built-in themes:
-  *    * default
-  *    * forest
-  *    * dark
-  *    * neutral.
-  * To disable any pre-defined mermaid theme, use "null".
-  *
-  * **themeCSS** - Use your own CSS. This overrides **theme**.
-  * <pre>
-  *  "theme": "forest",
-  *  "themeCSS": ".node rect { fill: red; }"
-  * </pre>
-  */
+   *
+   * **theme** - Choose one of the built-in themes:
+   *    * default
+   *    * forest
+   *    * dark
+   *    * neutral.
+   * To disable any pre-defined mermaid theme, use "null".
+   *
+   * **themeCSS** - Use your own CSS. This overrides **theme**.
+   * <pre>
+   *  "theme": "forest",
+   *  "themeCSS": ".node rect { fill: red; }"
+   * </pre>
+   */
 
   theme: 'default',
   themeCSS: undefined,
@@ -149,7 +148,6 @@ const config = {
    * The object containing configurations specific for sequence diagrams
    */
   sequence: {
-
     /**
      * margin to the right and left of the sequence diagram.
      * **Default value 50**.
@@ -234,7 +232,6 @@ const config = {
      * **Default value false**.
      */
     showSequenceNumbers: false
-
   },
 
   /**
@@ -303,100 +300,100 @@ const config = {
   },
   class: {},
   git: {}
-}
+};
 
-setLogLevel(config.logLevel)
-setConfig(config)
+setLogLevel(config.logLevel);
+setConfig(config);
 
-function parse (text) {
-  const graphType = utils.detectType(text)
-  let parser
+function parse(text) {
+  const graphType = utils.detectType(text);
+  let parser;
 
-  logger.debug('Type ' + graphType)
+  logger.debug('Type ' + graphType);
   switch (graphType) {
     case 'git':
-      parser = gitGraphParser
-      parser.parser.yy = gitGraphAst
-      break
+      parser = gitGraphParser;
+      parser.parser.yy = gitGraphAst;
+      break;
     case 'flowchart':
-      parser = flowParser
-      parser.parser.yy = flowDb
-      break
+      parser = flowParser;
+      parser.parser.yy = flowDb;
+      break;
     case 'sequence':
-      parser = sequenceParser
-      parser.parser.yy = sequenceDb
-      break
+      parser = sequenceParser;
+      parser.parser.yy = sequenceDb;
+      break;
     case 'gantt':
-      parser = ganttParser
-      parser.parser.yy = ganttDb
-      break
+      parser = ganttParser;
+      parser.parser.yy = ganttDb;
+      break;
     case 'class':
-      parser = classParser
-      parser.parser.yy = classDb
-      break
+      parser = classParser;
+      parser.parser.yy = classDb;
+      break;
     case 'info':
-      logger.debug('info info info')
-      console.warn('In API', pkg.version)
+      logger.debug('info info info');
+      console.warn('In API', pkg.version);
 
-      parser = infoParser
-      parser.parser.yy = infoDb
-      break
+      parser = infoParser;
+      parser.parser.yy = infoDb;
+      break;
     case 'pie':
-      logger.debug('pie')
-      parser = pieParser
-      parser.parser.yy = pieDb
-      break
+      logger.debug('pie');
+      parser = pieParser;
+      parser.parser.yy = pieDb;
+      break;
   }
 
   parser.parser.yy.parseError = (str, hash) => {
-    const error = { str, hash }
-    throw error
-  }
+    const error = { str, hash };
+    throw error;
+  };
 
-  parser.parse(text)
+  parser.parse(text);
 }
 
-export const encodeEntities = function (text) {
-  let txt = text
+export const encodeEntities = function(text) {
+  let txt = text;
 
-  txt = txt.replace(/style.*:\S*#.*;/g, function (s) {
-    const innerTxt = s.substring(0, s.length - 1)
-    return innerTxt
-  })
-  txt = txt.replace(/classDef.*:\S*#.*;/g, function (s) {
-    const innerTxt = s.substring(0, s.length - 1)
-    return innerTxt
-  })
+  txt = txt.replace(/style.*:\S*#.*;/g, function(s) {
+    const innerTxt = s.substring(0, s.length - 1);
+    return innerTxt;
+  });
+  txt = txt.replace(/classDef.*:\S*#.*;/g, function(s) {
+    const innerTxt = s.substring(0, s.length - 1);
+    return innerTxt;
+  });
 
-  txt = txt.replace(/#\w+;/g, function (s) {
-    const innerTxt = s.substring(1, s.length - 1)
+  txt = txt.replace(/#\w+;/g, function(s) {
+    const innerTxt = s.substring(1, s.length - 1);
 
-    const isInt = /^\+?\d+$/.test(innerTxt)
+    const isInt = /^\+?\d+$/.test(innerTxt);
     if (isInt) {
-      return 'fl°°' + innerTxt + '¶ß'
+      return 'fl°°' + innerTxt + '¶ß';
     } else {
-      return 'fl°' + innerTxt + '¶ß'
+      return 'fl°' + innerTxt + '¶ß';
     }
-  })
+  });
 
-  return txt
-}
+  return txt;
+};
 
-export const decodeEntities = function (text) {
-  let txt = text
+export const decodeEntities = function(text) {
+  let txt = text;
 
-  txt = txt.replace(/fl°°/g, function () {
-    return '&#'
-  })
-  txt = txt.replace(/fl°/g, function () {
-    return '&'
-  })
-  txt = txt.replace(/¶ß/g, function () {
-    return ';'
-  })
+  txt = txt.replace(/fl°°/g, function() {
+    return '&#';
+  });
+  txt = txt.replace(/fl°/g, function() {
+    return '&';
+  });
+  txt = txt.replace(/¶ß/g, function() {
+    return ';';
+  });
 
-  return txt
-}
+  return txt;
+};
 /**
  * Function that renders an svg with a graph from a chart definition. Usage example below.
  *
@@ -419,183 +416,209 @@ export const decodeEntities = function (text) {
  * provided a hidden div will be inserted in the body of the page instead. The element will be removed when rendering is
  * completed.
  */
-const render = function (id, txt, cb, container) {
+const render = function(id, txt, cb, container) {
   if (typeof container !== 'undefined') {
-    container.innerHTML = ''
+    container.innerHTML = '';
 
-    d3.select(container).append('div')
+    d3.select(container)
+      .append('div')
       .attr('id', 'd' + id)
       .append('svg')
       .attr('id', id)
       .attr('width', '100%')
       .attr('xmlns', 'http://www.w3.org/2000/svg')
-      .append('g')
+      .append('g');
   } else {
-    const element = document.querySelector('#' + 'd' + id)
+    const element = document.querySelector('#' + 'd' + id);
     if (element) {
-      element.innerHTML = ''
+      element.innerHTML = '';
     }
 
-    d3.select('body').append('div')
+    d3.select('body')
+      .append('div')
       .attr('id', 'd' + id)
       .append('svg')
       .attr('id', id)
       .attr('width', '100%')
       .attr('xmlns', 'http://www.w3.org/2000/svg')
-      .append('g')
+      .append('g');
   }
 
-  window.txt = txt
-  txt = encodeEntities(txt)
+  window.txt = txt;
+  txt = encodeEntities(txt);
 
-  const element = d3.select('#d' + id).node()
-  const graphType = utils.detectType(txt)
+  const element = d3.select('#d' + id).node();
+  const graphType = utils.detectType(txt);
 
   // insert inline style into svg
-  const svg = element.firstChild
-  const firstChild = svg.firstChild
+  const svg = element.firstChild;
+  const firstChild = svg.firstChild;
 
   // pre-defined theme
-  let style = themes[config.theme]
+  let style = themes[config.theme];
   if (style === undefined) {
-    style = ''
+    style = '';
   }
 
   // user provided theme CSS
   if (config.themeCSS !== undefined) {
-    style += `\n${config.themeCSS}`
+    style += `\n${config.themeCSS}`;
   }
 
   // classDef
   if (graphType === 'flowchart') {
-    const classes = flowRenderer.getClasses(txt)
+    const classes = flowRenderer.getClasses(txt);
     for (const className in classes) {
-      style += `\n.${className} > * { ${classes[className].styles.join(' !important; ')} !important; }`
+      style += `\n.${className} > * { ${classes[className].styles.join(
+        ' !important; '
+      )} !important; }`;
     }
   }
 
-  const style1 = document.createElement('style')
-  style1.innerHTML = scope(style, `#${id}`)
-  svg.insertBefore(style1, firstChild)
+  const style1 = document.createElement('style');
+  style1.innerHTML = scope(style, `#${id}`);
+  svg.insertBefore(style1, firstChild);
 
-  const style2 = document.createElement('style')
-  const cs = window.getComputedStyle(svg)
+  const style2 = document.createElement('style');
+  const cs = window.getComputedStyle(svg);
   style2.innerHTML = `#${id} {
     color: ${cs.color};
     font: ${cs.font};
-  }`
-  svg.insertBefore(style2, firstChild)
+  }`;
+  svg.insertBefore(style2, firstChild);
 
   switch (graphType) {
     case 'git':
-      config.flowchart.arrowMarkerAbsolute = config.arrowMarkerAbsolute
-      gitGraphRenderer.setConf(config.git)
-      gitGraphRenderer.draw(txt, id, false)
-      break
+      config.flowchart.arrowMarkerAbsolute = config.arrowMarkerAbsolute;
+      gitGraphRenderer.setConf(config.git);
+      gitGraphRenderer.draw(txt, id, false);
+      break;
     case 'flowchart':
-      config.flowchart.arrowMarkerAbsolute = config.arrowMarkerAbsolute
-      flowRenderer.setConf(config.flowchart)
-      flowRenderer.draw(txt, id, false)
-      break
+      config.flowchart.arrowMarkerAbsolute = config.arrowMarkerAbsolute;
+      flowRenderer.setConf(config.flowchart);
+      flowRenderer.draw(txt, id, false);
+      break;
     case 'sequence':
-      config.sequence.arrowMarkerAbsolute = config.arrowMarkerAbsolute
-      if (config.sequenceDiagram) { // backwards compatibility
-        sequenceRenderer.setConf(Object.assign(config.sequence, config.sequenceDiagram))
-        console.error('`mermaid config.sequenceDiagram` has been renamed to `config.sequence`. Please update your mermaid config.')
+      config.sequence.arrowMarkerAbsolute = config.arrowMarkerAbsolute;
+      if (config.sequenceDiagram) {
+        // backwards compatibility
+        sequenceRenderer.setConf(Object.assign(config.sequence, config.sequenceDiagram));
+        console.error(
+          '`mermaid config.sequenceDiagram` has been renamed to `config.sequence`. Please update your mermaid config.'
+        );
       } else {
-        sequenceRenderer.setConf(config.sequence)
+        sequenceRenderer.setConf(config.sequence);
       }
-      sequenceRenderer.draw(txt, id)
-      break
+      sequenceRenderer.draw(txt, id);
+      break;
     case 'gantt':
-      config.gantt.arrowMarkerAbsolute = config.arrowMarkerAbsolute
-      ganttRenderer.setConf(config.gantt)
-      ganttRenderer.draw(txt, id)
-      break
+      config.gantt.arrowMarkerAbsolute = config.arrowMarkerAbsolute;
+      ganttRenderer.setConf(config.gantt);
+      ganttRenderer.draw(txt, id);
+      break;
     case 'class':
-      config.class.arrowMarkerAbsolute = config.arrowMarkerAbsolute
-      classRenderer.setConf(config.class)
-      classRenderer.draw(txt, id)
-      break
+      config.class.arrowMarkerAbsolute = config.arrowMarkerAbsolute;
+      classRenderer.setConf(config.class);
+      classRenderer.draw(txt, id);
+      break;
     case 'info':
-      config.class.arrowMarkerAbsolute = config.arrowMarkerAbsolute
-      infoRenderer.setConf(config.class)
-      infoRenderer.draw(txt, id, pkg.version)
-      break
+      config.class.arrowMarkerAbsolute = config.arrowMarkerAbsolute;
+      infoRenderer.setConf(config.class);
+      infoRenderer.draw(txt, id, pkg.version);
+      break;
     case 'pie':
-      config.class.arrowMarkerAbsolute = config.arrowMarkerAbsolute
-      pieRenderer.setConf(config.class)
-      pieRenderer.draw(txt, id, pkg.version)
-      break
+      config.class.arrowMarkerAbsolute = config.arrowMarkerAbsolute;
+      pieRenderer.setConf(config.class);
+      pieRenderer.draw(txt, id, pkg.version);
+      break;
   }
 
-  d3.select(`[id="${id}"]`).selectAll('foreignobject > *').attr('xmlns', 'http://www.w3.org/1999/xhtml')
+  d3.select(`[id="${id}"]`)
+    .selectAll('foreignobject > *')
+    .attr('xmlns', 'http://www.w3.org/1999/xhtml');
 
-  let url = ''
+  let url = '';
   if (config.arrowMarkerAbsolute) {
-    url = window.location.protocol + '//' + window.location.host + window.location.pathname + window.location.search
-    url = url.replace(/\(/g, '\\(')
-    url = url.replace(/\)/g, '\\)')
+    url =
+      window.location.protocol +
+      '//' +
+      window.location.host +
+      window.location.pathname +
+      window.location.search;
+    url = url.replace(/\(/g, '\\(');
+    url = url.replace(/\)/g, '\\)');
   }
 
   // Fix for when the base tag is used
-  let svgCode = d3.select('#d' + id).node().innerHTML.replace(/url\(#arrowhead/g, 'url(' + url + '#arrowhead', 'g')
+  let svgCode = d3
+    .select('#d' + id)
+    .node()
+    .innerHTML.replace(/url\(#arrowhead/g, 'url(' + url + '#arrowhead', 'g');
 
-  svgCode = decodeEntities(svgCode)
+  svgCode = decodeEntities(svgCode);
 
   if (typeof cb !== 'undefined') {
     switch (graphType) {
       case 'flowchart':
-        cb(svgCode, flowDb.bindFunctions)
-        break
+        cb(svgCode, flowDb.bindFunctions);
+        break;
       case 'gantt':
-        cb(svgCode, ganttDb.bindFunctions)
-        break
+        cb(svgCode, ganttDb.bindFunctions);
+        break;
       default:
-        cb(svgCode)
+        cb(svgCode);
     }
   } else {
-    logger.debug('CB = undefined!')
+    logger.debug('CB = undefined!');
   }
 
-  const node = d3.select('#d' + id).node()
+  const node = d3.select('#d' + id).node();
   if (node !== null && typeof node.remove === 'function') {
-    d3.select('#d' + id).node().remove()
+    d3.select('#d' + id)
+      .node()
+      .remove();
   }
 
-  return svgCode
-}
+  return svgCode;
+};
 
-const setConf = function (cnf) {
+const setConf = function(cnf) {
   // Top level initially mermaid, gflow, sequenceDiagram and gantt
-  const lvl1Keys = Object.keys(cnf)
+  const lvl1Keys = Object.keys(cnf);
   for (let i = 0; i < lvl1Keys.length; i++) {
     if (typeof cnf[lvl1Keys[i]] === 'object' && cnf[lvl1Keys[i]] != null) {
-      const lvl2Keys = Object.keys(cnf[lvl1Keys[i]])
+      const lvl2Keys = Object.keys(cnf[lvl1Keys[i]]);
 
       for (let j = 0; j < lvl2Keys.length; j++) {
-        logger.debug('Setting conf ', lvl1Keys[i], '-', lvl2Keys[j])
+        logger.debug('Setting conf ', lvl1Keys[i], '-', lvl2Keys[j]);
         if (typeof config[lvl1Keys[i]] === 'undefined') {
-          config[lvl1Keys[i]] = {}
+          config[lvl1Keys[i]] = {};
         }
-        logger.debug('Setting config: ' + lvl1Keys[i] + ' ' + lvl2Keys[j] + ' to ' + cnf[lvl1Keys[i]][lvl2Keys[j]])
-        config[lvl1Keys[i]][lvl2Keys[j]] = cnf[lvl1Keys[i]][lvl2Keys[j]]
+        logger.debug(
+          'Setting config: ' +
+            lvl1Keys[i] +
+            ' ' +
+            lvl2Keys[j] +
+            ' to ' +
+            cnf[lvl1Keys[i]][lvl2Keys[j]]
+        );
+        config[lvl1Keys[i]][lvl2Keys[j]] = cnf[lvl1Keys[i]][lvl2Keys[j]];
       }
     } else {
-      config[lvl1Keys[i]] = cnf[lvl1Keys[i]]
+      config[lvl1Keys[i]] = cnf[lvl1Keys[i]];
     }
   }
-}
+};
 
-function initialize (options) {
-  logger.debug('Initializing mermaidAPI ', pkg.version)
+function initialize(options) {
+  logger.debug('Initializing mermaidAPI ', pkg.version);
 
   // Update default config with options supplied at initialization
   if (typeof options === 'object') {
-    setConf(options)
+    setConf(options);
   }
-  setConfig(config)
-  setLogLevel(config.logLevel)
+  setConfig(config);
+  setLogLevel(config.logLevel);
 }
 
 // function getConfig () {
@@ -608,9 +631,9 @@ const mermaidAPI = {
   parse,
   initialize,
   getConfig
-}
+};
 
-export default mermaidAPI
+export default mermaidAPI;
 /**
  * ## mermaidAPI configuration defaults
  * <pre>
diff --git a/src/mermaidAPI.spec.js b/src/mermaidAPI.spec.js
index 51749677c..a5114356f 100644
--- a/src/mermaidAPI.spec.js
+++ b/src/mermaidAPI.spec.js
@@ -1,45 +1,45 @@
 /* eslint-env jasmine */
-import mermaidAPI from './mermaidAPI'
+import mermaidAPI from './mermaidAPI';
 
-describe('when using mermaidAPI and ', function () {
-  describe('doing initialize ', function () {
-    beforeEach(function () {
-      document.body.innerHTML = ''
-    })
+describe('when using mermaidAPI and ', function() {
+  describe('doing initialize ', function() {
+    beforeEach(function() {
+      document.body.innerHTML = '';
+    });
 
-    it('should copy a literal into the configuration', function () {
-      const orgConfig = mermaidAPI.getConfig()
-      expect(orgConfig.testLiteral).toBe(undefined)
+    it('should copy a literal into the configuration', function() {
+      const orgConfig = mermaidAPI.getConfig();
+      expect(orgConfig.testLiteral).toBe(undefined);
 
-      mermaidAPI.initialize({ 'testLiteral': true })
-      const config = mermaidAPI.getConfig()
+      mermaidAPI.initialize({ testLiteral: true });
+      const config = mermaidAPI.getConfig();
 
-      expect(config.testLiteral).toBe(true)
-    })
-    it('should copy a an object into the configuration', function () {
-      const orgConfig = mermaidAPI.getConfig()
-      expect(orgConfig.testObject).toBe(undefined)
+      expect(config.testLiteral).toBe(true);
+    });
+    it('should copy a an object into the configuration', function() {
+      const orgConfig = mermaidAPI.getConfig();
+      expect(orgConfig.testObject).toBe(undefined);
 
       const object = {
         test1: 1,
         test2: false
-      }
+      };
 
-      mermaidAPI.initialize({ 'testObject': object })
-      mermaidAPI.initialize({ 'testObject': { 'test3': true } })
-      const config = mermaidAPI.getConfig()
+      mermaidAPI.initialize({ testObject: object });
+      mermaidAPI.initialize({ testObject: { test3: true } });
+      const config = mermaidAPI.getConfig();
 
-      expect(config.testObject.test1).toBe(1)
-      expect(config.testObject.test2).toBe(false)
-      expect(config.testObject.test3).toBe(true)
-    })
-  })
-  describe('checking validity of input ', function () {
-    it('it should throw for an invalid definiton', function () {
-      expect(() => mermaidAPI.parse('this is not a mermaid diagram definition')).toThrow()
-    })
-    it('it should not throw for a valid definiton', function () {
-      expect(() => mermaidAPI.parse('graph TD;A--x|text including URL space|B;')).not.toThrow()
-    })
-  })
-})
+      expect(config.testObject.test1).toBe(1);
+      expect(config.testObject.test2).toBe(false);
+      expect(config.testObject.test3).toBe(true);
+    });
+  });
+  describe('checking validity of input ', function() {
+    it('it should throw for an invalid definiton', function() {
+      expect(() => mermaidAPI.parse('this is not a mermaid diagram definition')).toThrow();
+    });
+    it('it should not throw for a valid definiton', function() {
+      expect(() => mermaidAPI.parse('graph TD;A--x|text including URL space|B;')).not.toThrow();
+    });
+  });
+});