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fix unification on string lists.

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This commit is contained in:
Mark Thom
2018-12-23 12:14:03 -07:00
parent 40fa795d49
commit 56ec550031
5 changed files with 56 additions and 24 deletions
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19
src/tests.rs
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@@ -1988,6 +1988,9 @@ fn test_queries_on_string_lists()
assert_prolog_success!(&mut wam, "?- partial_string(\"abc\", X), matcher(X, Y), \"def\" = Y.",
[["X = [a, b, c, d, e, f]", "Y = [d, e, f]"]]);
assert_prolog_success!(&mut wam, "?- partial_string(\"abc\", X), matcher(X, Y), partial_string(\"def\", Y).",
[["X = [a, b, c, d, e, f | _]",
"Y = [d, e, f | _]"]]);
assert_prolog_success!(&mut wam, "?- partial_string(\"abc\", X), matcher(X, Y), partial_string(\"def\", Y),
Y = \"defghijkl\".",
[["X = [a, b, c, d, e, f, g, h, i, j, k, l]",
@@ -1996,7 +1999,7 @@ fn test_queries_on_string_lists()
\"defghijkl\" = Y.",
[["X = [a, b, c, d, e, f, g, h, i, j, k, l]",
"Y = [d, e, f, g, h, i, j, k, l]"]]);
assert_prolog_success!(&mut wam, "?- partial_string(\"abc\", X), matcher(X, Y), Y = [d, e, f | G].",
[["X = [a, b, c, d, e, f | _]", "Y = [d, e, f | _]", "G = _"]]);
assert_prolog_success!(&mut wam, "?- partial_string(\"abc\", X), matcher(X, Y), [d, e, f | G] = Y.",
@@ -2091,4 +2094,18 @@ fn test_queries_on_string_lists()
["X = [b, d | _]", "Y = [d | _]"]]);
assert_prolog_success!(&mut wam, "?- partial_string(\"bc\", X), matcher(X, Y).",
[["X = [b, c | _]", "Y = [c | _]"]]);
submit(&mut wam, "f(\"appendy jones\").
f(\"appendy smithers jones\").
f(\"appendy o'toole\").");
assert_prolog_success!(&mut wam, "?- partial_string(\"appendy\", X), f(X).",
[["X = [a, p, p, e, n, d, y, ' ', j, o, n, e, s]"],
["X = [a, p, p, e, n, d, y, ' ', s, m, i, t, h, e, r, s, ' ', j, o, n, e, s]"],
["X = [a, p, p, e, n, d, y, ' ', o, ''', t, o, o, l, e]"]]);
assert_prolog_success!(&mut wam, "?- partial_string(\"abc\", X), partial_string(\"abcdef\", X).",
[["X = [a, b, c, d, e, f | _]"]]);
assert_prolog_success!(&mut wam, "?- partial_string(\"abc\", X), partial_string(\"abcdef\", X), X = \"abcdef\".",
[["X = [a, b, c, d, e, f]"]]);
}