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From Juan Martín Sotuyo Dodero (JIRA) <j...@apache.org>
Subject [jira] [Created] (GROOVY-7928) Groovy antlr syntax does not parse GStrings with variables
Date Fri, 02 Sep 2016 19:45:20 GMT
Juan Martín Sotuyo Dodero created GROOVY-7928:
-------------------------------------------------

             Summary: Groovy antlr syntax does not parse GStrings with variables
                 Key: GROOVY-7928
                 URL: https://issues.apache.org/jira/browse/GROOVY-7928
             Project: Groovy
          Issue Type: Bug
    Affects Versions: 2.4.7
            Reporter: Juan Martín Sotuyo Dodero


I'm trying to add Groovy support to PMD's CPD (copy paste detector, see https://pmd.github.io/pmd-5.5.1/usage/cpd-usage.html).
To do so, I'm attempting to use the GroovyTokenizer shipped in org.codehaus.groovy:groovy:2.4.7,
which is generated from the groovy.g ANTLR syntax file.

When parsing this simple snippet:

{{monospaced}}
class BTree<K, V> extends BTreeNode<K> {

	def add(K key, V value) {

			throw new Exception("$key")
	}
}
{{monospaced}}

I get:

{quote}
Lexical error at line 11, column 34.  Expecting anything but ''\n''; got it anyway
{quote}

Changing *$key* for any constant string works just fine, the problem is with GStrings actually
interpolating variables.

Thanks in advance



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