private bool IsStretch(Node node)
{
try
{
if (node.attrs != null)
{
Nodes.Attribute attribute = node.attrs.Get("stretchy");
if ((attribute != null) && !Convert.ToBoolean(attribute.val))
{
return(false);
}
}
}
catch
{
}
if ((((node.firstChild == null) || (node.firstChild.type_.type != ElementType.Entity)) ||
(node.firstChild.glyph == null)) ||
((((node.firstChild.glyph.Code != "021C0") && (node.firstChild.glyph.Code != "021C1")) &&
((node.firstChild.glyph.Code != "021BC") && (node.firstChild.glyph.Code != "021BD"))) &&
((((node.firstChild.glyph.Code != "02192") && (node.firstChild.glyph.Code != "02190")) &&
((node.firstChild.glyph.Code != "02194") && (node.firstChild.glyph.Code != "000AF"))) &&
((node.firstChild.glyph.Code != "0FE38") && (node.firstChild.glyph.Code != "00332")))))
{
return(false);
}
return(true);
}
private bool IsStretchyRec(Node node)
{
bool r = false;
Node target = null;
Node firstChild = null;
if (node.type_.type == ElementType.Mrow)
{
if ((node.numChildren == 1) && (node.firstChild.type_.type == ElementType.Mo))
{
firstChild = node.firstChild;
}
}
else if (node.type_.type == ElementType.Mo)
{
firstChild = node;
}
if (firstChild != null)
{
if ((firstChild.numChildren == 1) && (firstChild.firstChild.type_.type == ElementType.Entity))
{
target = firstChild.firstChild;
}
try
{
if (node.attrs != null)
{
Nodes.Attribute attribute = node.attrs.Get("stretchy");
if ((attribute != null) && !Convert.ToBoolean(attribute.val))
{
return(false);
}
}
}
catch
{
}
}
if ((target == null) || (target.glyph == null))
{
return(r);
}
string code = target.glyph.Code;
if ((((code != "0F578") && (code != "0F577")) && ((code != "0F576") && (code != "021C4"))) && (((code != "021C6") && (code != "021CC")) && (code != "021CB")))
{
return(r);
}
return(true);
}
private bool IsHarpoon(Node node)
{
Node entity = null;
Node op = null;
if (node.type_.type == ElementType.Mrow)
{
if ((node.numChildren == 1) && (node.firstChild.type_.type == ElementType.Mo))
{
op = node.firstChild;
}
}
else if (node.type_.type == ElementType.Mo)
{
op = node;
}
if (op != null)
{
if ((op.numChildren == 1) && (op.firstChild.type_.type == ElementType.Entity))
{
entity = op.firstChild;
}
try
{
if (node.attrs != null)
{
Nodes.Attribute attribute = node.attrs.Get("stretchy");
if ((attribute != null) && !Convert.ToBoolean(attribute.val))
{
return(false);
}
}
}
catch
{
}
}
if ((entity == null) || (entity.glyph == null))
{
return(false);
}
string g = entity.glyph.Code;
if ((((g != "0F578") && (g != "0F577")) && ((g != "0F576") && (g != "021C4"))) &&
(((g != "021C6") && (g != "021CC")) && (g != "021CB")))
{
return(false);
}
return(true);
}
//
private void PropogateAttributes (Node trNode1, Node trNode2)
{
try
{
if ((trNode1.type_.type != ElementType.Mtr) ||
(trNode2.type_.type != ElementType.Mtr))
{
return;
}
NodesList list1 = trNode1.GetChildrenNodes ();
NodesList list2 = trNode2.GetChildrenNodes ();
if (list1.Count != list2.Count)
{
return;
}
for (int i = 0; i < list1.Count; i++)
{
if (i < list2.Count)
{
Node child1 = list1.Get (i);
Node child2 = list2.Get (i);
if (child1.attrs != null)
{
child1.attrs.Reset ();
try
{
for (int j = 0; j < child1.attrs.Count; j++)
{
Nodes.Attribute attr1 = child1.attrs.Next ();
Nodes.Attribute attr2 = new Nodes.Attribute (attr1.name, attr1.val, attr1.ns);
if (child2.attrs == null)
{
child2.attrs = new AttributeList ();
}
child2.attrs.Add (attr2);
}
}
catch
{
}
child1.attrs.Reset ();
if (child2.attrs != null)
{
child2.attrs.Reset ();
}
}
}
}
}
catch
{
}
}
