public void ItemParser()
{
var stream = new MemoryStream <char>("abc".AsMemory());
var p = Combinator.Item <char>();
var r1 = p.Parse(stream);
var r2 = p.Parse(stream);
var r3 = p.Parse(stream);
var r4 = p.Parse(stream);
Assert.True(r1.IsOk);
Assert.True(r2.IsOk);
Assert.True(r3.IsOk);
Assert.False(r4.IsOk);
Assert.Equal('a', r1.Ok.Value);
Assert.Equal('b', r2.Ok.Value);
Assert.Equal('c', r3.Ok.Value);
}
public void ExactItemParser()
{
var stream = new MemoryStream <char>("abc".AsMemory());
var p1 = Combinator.Item('a');
var p2 = Combinator.Item('b');
var p3 = Combinator.Item('d');
var p4 = Combinator.Item('c');
var r1 = p1.Parse(stream);
var r2 = p2.Parse(stream);
var r3 = p3.Parse(stream);
var r4 = p4.Parse(stream);
Assert.True(r1.IsOk);
Assert.True(r2.IsOk);
Assert.False(r3.IsOk);
Assert.True(r4.IsOk);
Assert.Equal('a', r1.Ok.Value);
Assert.Equal('b', r2.Ok.Value);
Assert.Equal('c', r4.Ok.Value);
}