CODEWITHSUNDEEP
parsingjavacc
Shiran S Ekanayake
Shiran S Ekanayake

Reputation: 179

How to identify the JAVACC parser unsuccessful programatically?

In javacc, how to check weather the input file is successfully passed the grammar or not? As an example, say I want to print "Filed parsed successfully" if the whole file is successfully parsed by the parser, and if not I want to print "File parsing faild!"

I'm pretty newbie to javacc. So please help

Upvotes: 0

Views: 95

Answers (1)

Theodore Norvell
Theodore Norvell

Reputation: 16241

try {
    parser.start() ;
    System.out.println("File parsed successfully.") ;
} catch( ParseException ex ) {
    // Syntax error
    System.out.println( ex.getMessage() ) ; }
} catch( TokenManagerError ex ) {
    // Lexical error
    System.out.println( ex.getMessage() ) ; }
} catch( Throwable ex ) {
    // Some other error
    System.out.println( ex.getMessage() ) ; }

Upvotes: 1

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