Remove unnecessary parentheses

The unary modulus operation does not require extra parentheses to be
printed in cases like “|X + Y|”. This adds a new option to the printing
routine to omit parentheses in cases where the parent expression already
defines a parenthesis-like scope (currently only with unary operations).
This commit is contained in:
2018-04-12 00:54:27 +02:00
parent 8c250f5c59
commit 04094eee23
2 changed files with 82 additions and 65 deletions

View File

@@ -190,6 +190,6 @@ TEST_CASE("[completion] Rules are completed", "[completion]")
input << "adj(X, Y) :- X = 1..n, Y = 1..n, |X - Y| = 1.";
anthem::translate("input", input, context);
CHECK(output.str() == "forall V1, V2 (adj(V1, V2) <-> (V1 in 1..n and V2 in 1..n and |(V1 - V2)| = 1))\n");
CHECK(output.str() == "forall V1, V2 (adj(V1, V2) <-> (V1 in 1..n and V2 in 1..n and |V1 - V2| = 1))\n");
}
}