[antlr-interest] Matching braces in grammar

[Jukkis]

Hello all ANTLR fans!

I'm developing a small language with ANTLR. One feature is that my language can have BeanShell code written into the language in special BeanShell blocks.

Currently, I have a special kind of statement which takes the BeanShell code (which is essentially Java):

${"print(\"Hey, I'm BeanShell code\");"}

defined in my grammar as:

beanshell_statement
    : "$" LCURLY! STRING_LITERAL RCURLY!
    ;

The problem is that BeanShell code may contain the symbol '}' which I use to terminate the statement. Currently, I use STRING_LITERAL to work around this fact.

Now, what I would want is that there would be no need to write the BeanShell code inside a string. How can I make ANTLR understand that it would consider any curlys found INSIDE the MATCHING '{' ... '}' pair as just ordinary text?

Thank you very much for any advice!


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