dsl - Issue while writing xtext grammar file -


निम्नलिखित मेरे व्याकरण का हिस्सा है 

  TestLabelBase रिजल्टएक्सप्रेसआरएचएस देता है: 'VL:' पथ = STRING; वर्णमापनकर्ता: (एबीसी? = 'एबीसी' | def? '' डीईएफ '| जी? =' जीआई ');   
 जब मैं निम्नलिखित नियम लिखता हूं  TestLabel  यह ठीक काम करता है:  
  TestLabel रिजल्टएक्सप्रेसआरएचएस रिटर्न: TestLabelBase (modifier = AlphabetModifier) ​​?;   
 लेकिन जब मैं  TestLabel  के लिए निम्नलिखित नियम का उपयोग करता हूं तो यह कहते हैं  
 
 एक अनिर्दिष्ट नियम कॉल की अनुमति नहीं है, जब 'चालू 'पहले से ही बनाया गया था।   
  TestLabel रिजल्टएक्सप्रेसआरएचएस रिटर्न: (संशोधक = अल्फाबेटमॉडिफायर)? TestLabelBase;   
 क्या आप कृपया इसके पीछे कारण बता सकते हैं?   
 
 
 है  
 आपको अपना नियम इन्हें बदलने की आवश्यकता है:  
  TestLabel रिटर्न ResultExpressionRhs: (modifier = AlphabetModifier)? base = TestLabelBase;   
 चीयर्स, स्टीव

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