Yield of a (sub)parse tree in Rascal -

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how can obtain yield of (sub)parse tree in rascal, i.e., text associated subtree? ex., during visit encounter declaration (with java/m3) , want text of declaration. have tried "unparse", gives "does not match of declared (overloaded) signature patterns :unparse(tree)", guess works top sort/starting symbol.

one of simplest solutions using string template , inserting subtree in -- assuming subtree d:

"<d>"

this automatically unparse d. more sophisticated pretty printing missing on our todo list.


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