Fix for + and -

cypress/snapshots.js

@@ -7,7 +7,7 @@ module.exports = {
       "1": "{\"code\":\"graph TD\\n    A[Christmas] -->|Get money| B(Go shopping)\\n    B --> C{Let me think}\\n    C -->|One| D[Laptop]\\n    C -->|Two| E[iPhone]\\n    C -->|Three| F[fa:fa-car Car]\",\"mermaid\":\"{\\n  \\\"theme\\\": \\\"default\\\"\\n}\",\"updateEditor\":false,\"autoSync\":true,\"updateDiagram\":false}"
     }
   },
-  "__version": "8.2.0",
+  "__version": "8.1.0",
   "Auto sync tests": {
     "should dim diagram when code is edited": {
       "1": "{\"code\":\"graph TD\\n    A[Christmas] -->|Get money| B(Go shopping)\\n    B --> C{Let me think}\\n    C -->|One| D[Laptop]\\n    C -->|Two| E[iPhone]\\n    C -->|Three| F[fa:fa-car Car]\\n    C --> Test\",\"mermaid\":\"{\\n  \\\"theme\\\": \\\"default\\\"\\n}\",\"updateEditor\":false,\"autoSync\":false,\"updateDiagram\":false}"

src/lib/components/editor/util.ts

@@ -20,12 +20,15 @@ export const initEditor = (monacoEditor): void => {
 			'journey'
 		],
 		keywords: ['participant', 'as'],
-		arrows: ['---', '===', '-->', '==>', '->>', '-->>', '->', '-)', '--)', '-x', '--x'],
+		arrows: ['---', '===', '-->>', '-->', '==>', '->>', '->', '--)', '-)', '--x', '-x'].reduce(
+			(accumalator, arrow) => accumalator.concat(arrow, arrow + '+', arrow + '-'),
+			[]
+		),
 		tokenizer: {
 			root: [
 				[/[{}]/, 'delimiter.bracket'],
 				[/[a-z_$][\w$]*/, { cases: { '@typeKeywords': 'keyword', '@keywords': 'keyword' } }],
-				[/[-=>ox]+/, { cases: { '@arrows': 'transition' } }],
+				[/[-+=>ox]+/, { cases: { '@arrows': 'transition' } }],
 				[/[[{(}]+.+?[)\]}]+/, 'string'],
 				[/".*"/, 'string']
 			]