#1142 Simplified arrows/edges in the grammar

mermaid-js · Dec 15, 2019 · 4ff4058 · 4ff4058
1 parent dddd5af
commit 4ff4058
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diff --git a/cypress/platform/current.html b/cypress/platform/current.html
@@ -5,7 +5,7 @@
       rel="stylesheet"
     />
     <style>
-      body {background: white}
+      body {background: black}
       h1 { color: white;}
       .arrowheadPath {fill: red;}
 
@@ -17,26 +17,24 @@
   <body>
     <h1>info below</h1>
     <div style="display: flex;width: 100%; height: 100%">
-      <div class="mermaid" style="width: 100%; height: 100%">gantt
-        dateFormat  YYYY-MM-DD
-        axisFormat  %d/%m
-        title Adding GANTT diagram to mermaid
-        excludes weekdays 2014-01-10
-
-        apple :a, 2017-07-20, 1w
-        banana :crit, b, 2017-07-23, 1d
-        cherry :active, c, after b a, 1d
-
-
+      <div class="mermaid" style="width: 100%; height: 100%">
+        graph TB
+          A --> B
+          A ==> C
+          A .-> D
+          A === E
+          A -.- F
+          D -- Hello --> a
+          D-- text including R TD space --xb
       </div>
 </div>
   <script src="./mermaid.js"></script>
     <script>
       mermaid.initialize({
-        // theme: 'dark',
+        theme: 'dark',
         // arrowMarkerAbsolute: true,
         // themeCSS: '.edgePath .path {stroke: red;} .arrowheadPath {fill: red;}',
-        logLevel: 3,
+        logLevel: 0,
         flowchart: { curve: 'linear', "htmlLabels": false },
         // gantt: { axisFormat: '%m/%d/%Y' },
         sequence: { actorMargin: 50 },

diff --git a/src/diagrams/flowchart/flowDb.js b/src/diagrams/flowchart/flowDb.js
@@ -501,6 +501,130 @@ export const firstGraph = () => {
   return false;
 };
 
+const destructStartLink = _str => {
+  const str = _str.trim();
+
+  switch (str) {
+    case '<--':
+      return { type: 'arrow', stroke: 'normal' };
+    case 'x--':
+      return { type: 'arrow_cross', stroke: 'normal' };
+    case 'o--':
+      return { type: 'arrow_circle', stroke: 'normal' };
+    case '<-.':
+      return { type: 'arrow', stroke: 'dotted' };
+    case 'x-.':
+      return { type: 'arrow_cross', stroke: 'dotted' };
+    case 'o-.':
+      return { type: 'arrow_circle', stroke: 'dotted' };
+    case '<==':
+      return { type: 'arrow', stroke: 'thick' };
+    case 'x==':
+      return { type: 'arrow_cross', stroke: 'thick' };
+    case 'o==':
+      return { type: 'arrow_circle', stroke: 'thick' };
+    case '--':
+      return { type: 'arrow_open', stroke: 'normal' };
+    case '==':
+      return { type: 'arrow_open', stroke: 'thick' };
+    case '-.':
+      return { type: 'arrow_open', stroke: 'dotted' };
+  }
+};
+
+const destructEndLink = _str => {
+  const str = _str.trim();
+
+  switch (str) {
+    case '--x':
+      return { type: 'arrow_cross', stroke: 'normal' };
+    case '-->':
+      return { type: 'arrow', stroke: 'normal' };
+    case '<-->':
+      return { type: 'double_arrow_point', stroke: 'normal' };
+    case 'x--x':
+      return { type: 'double_arrow_cross', stroke: 'normal' };
+    case 'o--o':
+      return { type: 'double_arrow_circle', stroke: 'normal' };
+    case 'o.-o':
+      return { type: 'double_arrow_circle', stroke: 'dotted' };
+    case '<==>':
+      return { type: 'double_arrow_point', stroke: 'thick' };
+    case 'o==o':
+      return { type: 'double_arrow_circle', stroke: 'thick' };
+    case 'x==x':
+      return { type: 'double_arrow_cross', stroke: 'thick' };
+    case 'x.-x':
+      return { type: 'double_arrow_cross', stroke: 'dotted' };
+    case 'x-.-x':
+      return { type: 'double_arrow_cross', stroke: 'dotted' };
+    case '<.->':
+      return { type: 'double_arrow_point', stroke: 'dotted' };
+    case '<-.->':
+      return { type: 'double_arrow_point', stroke: 'dotted' };
+    case 'o-.-o':
+      return { type: 'double_arrow_circle', stroke: 'dotted' };
+    case '--o':
+      return { type: 'arrow_circle', stroke: 'normal' };
+    case '---':
+      return { type: 'arrow_open', stroke: 'normal' };
+    case '-.-x':
+      return { type: 'arrow_cross', stroke: 'dotted' };
+    case '-.->':
+      return { type: 'arrow', stroke: 'dotted' };
+    case '-.-o':
+      return { type: 'arrow_circle', stroke: 'dotted' };
+    case '-.-':
+      return { type: 'arrow_open', stroke: 'dotted' };
+    case '.-x':
+      return { type: 'arrow_cross', stroke: 'dotted' };
+    case '.->':
+      return { type: 'arrow', stroke: 'dotted' };
+    case '.-o':
+      return { type: 'arrow_circle', stroke: 'dotted' };
+    case '.-':
+      return { type: 'arrow_open', stroke: 'dotted' };
+    case '==x':
+      return { type: 'arrow_cross', stroke: 'thick' };
+    case '==>':
+      return { type: 'arrow', stroke: 'thick' };
+    case '==o':
+      return { type: 'arrow_circle', stroke: 'thick' };
+    case '===':
+      return { type: 'arrow_open', stroke: 'thick' };
+  }
+};
+
+const destructLink = (_str, _startStr) => {
+  const info = destructEndLink(_str);
+  let startInfo;
+  if (_startStr) {
+    startInfo = destructStartLink(_startStr);
+    console.log(startInfo, info);
+    if (startInfo.stroke !== info.stroke) {
+      return { type: 'INVALID', stroke: 'INVALID' };
+    }
+
+    if (startInfo.type === 'arrow_open') {
+      // -- xyz -->  - take arrow type form ending
+      startInfo.type = info.type;
+    } else {
+      // x-- xyz -->  - not supported
+      if (startInfo.type !== info.type) return { type: 'INVALID', stroke: 'INVALID' };
+
+      startInfo.type = 'double_' + startInfo.type;
+    }
+
+    if (startInfo.type === 'double_arrow') {
+      startInfo.type = 'double_arrow_point';
+    }
+
+    return startInfo;
+  }
+
+  return info;
+};
+
 export default {
   addVertex,
   addLink,
@@ -523,6 +647,7 @@ export default {
   getDepthFirstPos,
   indexNodes,
   getSubGraphs,
+  destructLink,
   lex: {
     firstGraph
   }

diff --git a/src/diagrams/flowchart/parser/flow-edges.spec.js b/src/diagrams/flowchart/parser/flow-edges.spec.js
@@ -87,7 +87,7 @@ describe('[Edges] when parsing', () => {
       expect(edges[0].text).toBe('');
     });
 
-    it('should handle double edged nodes with text on thick arrows', function() {
+    it('should handle double edged nodes with text on thick arrows XYZ1', function() {
       const res = flow.parser.parse('graph TD;\nA x== text ==x B;');
 
       const vert = flow.parser.yy.getVertices();

diff --git a/src/diagrams/flowchart/parser/flow-text.spec.js b/src/diagrams/flowchart/parser/flow-text.spec.js
@@ -182,7 +182,7 @@ describe('[Text] when parsing', () => {
 
       expect(edges[0].stroke).toBe('normal');
     });
-    it('it should handle dotted text on lines', function() {
+    it('it should handle dotted text on lines (TD3)', function() {
       const res = flow.parser.parse('graph TD;A-. test text with == .->B;');
 
       const vert = flow.parser.yy.getVertices();
@@ -265,7 +265,7 @@ describe('[Text] when parsing', () => {
       expect(edges[0].text).toBe('text including URL space');
     });
 
-    it('should handle space and dir (TD)', function() {
+    it('should handle space and dir (TD2)', function() {
       const res = flow.parser.parse('graph TD;A-- text including R TD space --xB;');
 
       const vert = flow.parser.yy.getVertices();