Name Rascal/Libraries/Prelude/ParseTree/unparse

Synopsis Yield the string of characters that form the leafs of the given parse tree.

Function str unparse(Tree tree)

Usage import ParseTree;

Description unparse is the inverse function of parse, i.e., for every syntactically correct string TXT of type S, the following holds:

unparse(parse(#S, TXT)) == TXT

Examples

rascal>import demo::lang::Exp::Concrete::NoLayout::Syntax;
ok
rascal>import ParseTree;
ok

First parse an expression, this results in a parse tree. Then unparse this parse tree:

rascal>unparse(parse(#Exp, "2+3"));
str: "2+3"

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