#6186 Fix for flowchart new syntax with link

Author: ashishjain0512

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

@@ -1103,5 +1103,14 @@ end
         {}
       );
     });
+    it('should be possible to use @  syntax to add labels with trail spaces and edge/link', () => {
+      imgSnapshotTest(
+        `flowchart TD
+    A["A"] --> B["for B"] &    C@{ label: "for c"} & E@{label : "for E"}  
+    D@{label: "for D"}     
+        `,
+        {}
+      );
+    });
   });
 });

packages/mermaid/src/diagrams/flowchart/parser/flow-node-data.spec.js

@@ -302,6 +302,21 @@ describe('when parsing directions', function () {
     expect(data4Layout.nodes[1].label).toEqual('labe for n4');
     expect(data4Layout.nodes[2].label).toEqual('labe for n5');
   });
+
+  it('should be possible to use @  syntax to add labels on multi nodes with edge/link', function () {
+    const res = flow.parser.parse(`flowchart TD
+    A["A"] --> B["for B"] &    C@{ label: "for c"} & E@{label : "for E"}
+    D@{label: "for D"}
+      `);
+
+    const data4Layout = flow.parser.yy.getData();
+    expect(data4Layout.nodes.length).toBe(5);
+    expect(data4Layout.nodes[0].label).toEqual('A');
+    expect(data4Layout.nodes[1].label).toEqual('for B');
+    expect(data4Layout.nodes[2].label).toEqual('for c');
+    expect(data4Layout.nodes[3].label).toEqual('for E');
+    expect(data4Layout.nodes[4].label).toEqual('for D');
+  });
   it.skip(' should be possible to use @  syntax to add labels with trail spaces', function () {
     const res = flow.parser.parse(
       `flowchart TB

packages/mermaid/src/diagrams/flowchart/parser/flow.jison

@@ -399,7 +399,7 @@ shapeData:
     ;
 
 vertexStatement: vertexStatement link node shapeData
-        { /* console.warn('vs shapeData',$vertexStatement.stmt,$node, $shapeData);*/ yy.addVertex($node[0],undefined,undefined,undefined, undefined,undefined, undefined,$shapeData); yy.addLink($vertexStatement.stmt,$node,$link); $$ = { stmt: $node, nodes: $node.concat($vertexStatement.nodes) } }
+        { /* console.warn('vs shapeData',$vertexStatement.stmt,$node, $shapeData);*/ yy.addVertex($node[$node.length-1],undefined,undefined,undefined, undefined,undefined, undefined,$shapeData); yy.addLink($vertexStatement.stmt,$node,$link); $$ = { stmt: $node, nodes: $node.concat($vertexStatement.nodes) } }
     | vertexStatement link node
         { /*console.warn('vs',$vertexStatement.stmt,$node);*/ yy.addLink($vertexStatement.stmt,$node,$link); $$ = { stmt: $node, nodes: $node.concat($vertexStatement.nodes) } }
     |  vertexStatement link node spaceList