public void TestInsert()
{
var list = new MathList();
Assert.Empty(list);
var atom = MathAtoms.Placeholder;
list.Insert(0, atom);
Assert.Single(list);
Assert.Equal(atom, list[0]);
var atom2 = MathAtoms.Operator("+", false);
list.Insert(0, atom2);
Assert.Equal(2, list.Count);
Assert.Equal(atom2, list[0]);
Assert.Equal(atom, list[1]);
var atom3 = MathAtoms.Create(MathAtomType.Variable, "x");
list.Insert(2, atom3);
Assert.Equal(3, list.Count);
Assert.Equal(atom2, list[0]);
Assert.Equal(atom, list[1]);
Assert.Equal(atom3, list[2]);
}
public void TestInsert()
{
var list = new MathList();
Assert.Empty(list);
var atom = LaTeXSettings.Placeholder;
list.Insert(0, atom);
Assert.Single(list);
Assert.Equal(atom, list[0]);
var atom2 = new LargeOperator("+", false);
list.Insert(0, atom2);
Assert.Equal(2, list.Count);
Assert.Equal(atom2, list[0]);
Assert.Equal(atom, list[1]);
var atom3 = new Variable("x");
list.Insert(2, atom3);
Assert.Equal(3, list.Count);
Assert.Equal(atom2, list[0]);
Assert.Equal(atom, list[1]);
Assert.Equal(atom3, list[2]);
}
static void InsertAtAtomIndexAndAdvance(this MathList self, int atomIndex, MathAtom atom, ref MathListIndex advance, MathListSubIndexType advanceType)
{
if (atomIndex < 0 || atomIndex > self.Count)
{
throw new IndexOutOfRangeException($"Index {atomIndex} is out of bounds for list of size {self.Atoms.Count}");
}
// Test for placeholder to the right of index, e.g. \sqrt{‸■} -> \sqrt{2‸}
if (atomIndex < self.Count && self[atomIndex] is Atoms.Placeholder placeholder)
{
atom.Superscript.Append(placeholder.Superscript);
atom.Subscript.Append(placeholder.Subscript);
self[atomIndex] = atom;
}
else
{
self.Insert(atomIndex, atom);
}
advance = advanceType switch
{
MathListSubIndexType.None => advance.Next,
_ => advance.LevelUpWithSubIndex(advanceType, MathListIndex.Level0Index(0)),
};
}