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Xtext Lexer and Parser [message #1786605]

Tue, 08 May 2018 09:54

Virag Purnam

Messages: 55
Registered: June 2014

Member

Hello,

I am working to build an editor for one of the legacy language.
I got stuck at place where I need some help.
I am trying to explain my problem with java example.

Class Test {                                                           
           public static void main(String[] args ){ 
                 System.out.println("Virag");                            
                 method();                                                        
           }                                                           
           public static method(){             
                System.out.println("Purnam");                                    
           }                                                                
}

Now in the above example, I want to parse the main class and if any methods are called then that method content should be part of my main class code.
Expected content in document.

Class Test {                                                           
           public static void main(String[] args ){ 
                 System.out.println("Virag");                            
                 System.out.println("Purnam");                                                        
           }                                                         

}

I can achieve this in lexer, but after that I face problem is editor.
After parsing I get the proper content, but in next iteration it is creating problem.
As character positions got changed, on edit it enters/delete characters from wrong text region.
How to fix this in editor, so that edit works fine.
How can I fix this? Any help will be much appreciated.

Thanks and regards,
Virag Purnam

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