private String RenderNode(ProgramNode node)
{
StringBuilder result = new StringBuilder();
for (int i = 0; i < node.ChildNodes.Count; i++)
{
ProgramNode childNode = node.GetChildNode(i);
result.Append(RenderNode(childNode));
}
result.Append('[');
result.Append(node.Name);
result.Append(':');
result.Append(node.Template.ChildNodeCount);
for (int i = 0; i < node.Template.DataSize; i++)
{
result.Append(':');
EPLValueType t = node.Data[i].ExprType;
if (t == EPLValueType.BooleanType)
{
result.Append(node.Data[i].ToBooleanValue() ? 't' : 'f');
}
else if (t == EPLValueType.FloatingType)
{
result.Append(CSVFormat.EgFormat.Format(node.Data[i].ToFloatValue(), EncogFramework.DefaultPrecision));
}
else if (t == EPLValueType.IntType)
{
result.Append(node.Data[i].ToIntValue());
}
else if (t == EPLValueType.EnumType)
{
result.Append(node.Data[i].EnumType);
result.Append("#");
result.Append(node.Data[i].ToIntValue());
}
else if (t == EPLValueType.StringType)
{
result.Append("\"");
result.Append(node.Data[i].ToStringValue());
result.Append("\"");
}
}
result.Append(']');
return result.ToString().Trim();
}
private String RenderFunction(ProgramNode node)
{
StringBuilder result = new StringBuilder();
result.Append(node.Name);
result.Append('(');
for (int i = 0; i < node.ChildNodes.Count; i++)
{
if (i > 0)
{
result.Append(',');
}
ProgramNode childNode = node.GetChildNode(i);
result.Append(RenderNode(childNode));
}
result.Append(')');
return result.ToString();
}
private String RenderNode(ProgramNode node)
{
StringBuilder result = new StringBuilder();
ExpressionNodeType t = this.DetermineNodeType(node);
for (int i = 0; i < node.ChildNodes.Count; i++)
{
ProgramNode childNode = node.GetChildNode(i);
if (result.Length > 0)
{
result.Append(" ");
}
result.Append(RenderNode(childNode));
}
if (result.Length > 0)
{
result.Append(" ");
}
if (t == ExpressionNodeType.ConstVal)
{
result.Append(HandleConst(node));
}
else if (t == ExpressionNodeType.Variable)
{
result.Append(HandleVar(node));
}
else if (t == ExpressionNodeType.Function || t == ExpressionNodeType.Operator)
{
result.Append('[');
result.Append(node.Name);
result.Append(']');
}
return result.ToString().Trim();
}
private String RenderOperator(ProgramNode node)
{
StringBuilder result = new StringBuilder();
result.Append("(");
result.Append(RenderNode(node.GetChildNode(0)));
result.Append(node.Name);
result.Append(RenderNode(node.GetChildNode(1)));
result.Append(")");
return result.ToString();
}
private String HandleFunction(ProgramNode node)
{
IProgramExtensionTemplate temp = node.Template;
StringBuilder result = new StringBuilder();
if (temp == StandardExtensions.EXTENSION_SQRT)
{
result.Append("\\sqrt{");
result.Append(RenderNode(node.GetChildNode(0)));
result.Append("}");
}
else
{
result.Append(temp.Name);
result.Append('(');
for (int i = 0; i < temp.ChildNodeCount; i++)
{
if (i > 0)
{
result.Append(',');
}
result.Append(RenderNode(node.GetChildNode(i)));
}
result.Append(')');
}
return result.ToString();
}
private String HandleOperator(ProgramNode node)
{
IProgramExtensionTemplate temp = node.Template;
StringBuilder result = new StringBuilder();
if (temp.ChildNodeCount == 2)
{
String a = RenderNode(node.GetChildNode(0));
String b = RenderNode(node.GetChildNode(1));
if (temp == StandardExtensions.EXTENSION_DIV)
{
result.Append("\\frac{");
result.Append(b);
result.Append("}{");
result.Append(a);
result.Append("}");
}
else if (temp == StandardExtensions.EXTENSION_MUL)
{
result.Append("(");
result.Append(b);
result.Append("\\cdot ");
result.Append(a);
result.Append(")");
}
else
{
result.Append("(");
result.Append(b);
result.Append(temp.Name);
result.Append(a);
result.Append(")");
}
}
else if (temp.ChildNodeCount == 1)
{
String a = RenderNode(node.GetChildNode(0));
result.Append("(");
result.Append(temp.Name);
result.Append(a);
result.Append(")");
}
else
{
throw new EACompileError(
"An operator must have an arity of 1 or 2, probably should be made a function.");
}
return result.ToString();
}