public void Regressions()
{
IntSet a = IntSet.Parse("[^ \t\r\n\\\\]"), b = IntSet.Parse("[ \t]");
AreEqual(IntSet.Parse("[^\r\n\\\\]"), b.Union(a));
AreEqual(IntSet.Parse("[^\r\n\\\\]"), a.Union(b)); // a bug here produced [^]
}
public void ParsingAndPrinting()
{
IntSet empty = IntSet.Empty, all = IntSet.All;
PrintAndParse(empty, "()");
empty.IsCharSet = true;
PrintAndParse(empty, "[]");
empty.IsCharSet = false; // design flaw here - mutable property on readonly static field
PrintAndParse(all, "~()");
all.IsCharSet = true;
PrintAndParse(all, "[^]");
all.IsCharSet = false; // design flaw here - mutable property on readonly static field
AreEqual(IntSet.WithCharRanges('a', 'd'), IntSet.Parse("[dacb]"));
AreEqual(IntSet.With(1234), IntSet.Parse("(1234)"));
AreEqual(IntSet.With(0x1234, '!'), IntSet.Parse("[\u1234!]"));
AreEqual(IntSet.With(0x12, '!'), IntSet.Parse("[\x12!]"));
IsNull(IntSet.TryParse("(12345678901)"));
PrintAndParse(IntSet.WithCharRanges('a', 'd'), "[a-d]");
PrintAndParse(IntSet.WithChars('$', '-', '[', ']'), @"[$\-[\]]");
PrintAndParse(IntSet.WithoutCharRanges(-1, -1, '\n', '\n', '0', '9', '^', '^'), @"[^\$\n0-9^]");
PrintAndParse(IntSet.With(2, 3, 5, 7, 11), "(2..3, 5, 7, 11)");
PrintAndParse(IntSet.WithRanges(int.MinValue, 0), string.Format("({0}..0)", int.MinValue));
PrintAndParse(IntSet.WithoutRanges(1, int.MaxValue), string.Format("~(1..{0})", int.MaxValue));
// See the error? That's really a single backslash; to add backslash to
// the set we need another backslash.
int errorIndex;
var set = IntSet.TryParse("[^\n\\]", out errorIndex);
AreEqual(errorIndex, 4);
AreEqual(IntSet.WithoutChars('\n', '\\'), IntSet.Parse("[^\n\\\\]"));
}
private void PrintAndParse(IntSet set, string expect)
{
string s = set.ToString();
AreEqual(expect, s);
AreEqual(IntSet.Parse(expect), set);
}
