protected override void OnRenderNext(RegExpr defaultTokenWs, RegExpr parent,
StringBuilder pattern, ref RenderMode mode, Stack <Token> tokenStack)
{
base.OnRenderNext(defaultTokenWs, parent, pattern, ref mode, tokenStack);
var tokenWs = GetTokenWhitespace(defaultTokenWs);
if (NeedsWhitespaceGroup(tokenWs, mode))
{
pattern.Append(")");
}
if (Expr != null)
{
if (!mode.HasFlag(RenderMode.Assert) && !string.IsNullOrEmpty(Id))
{
string captureId = GenerateCaptureId(Id);
Parents.Add(captureId, tokenStack.Peek());
tokenStack.Peek().Children.Add(this);
pattern.AppendFormat("(?<{0}>", captureId);
}
else
{
pattern.Append("(?:");
}
}
tokenStack.Push(this);
}
private void DrawFace(Vector3 v1, Vector3 v2, Vector3 v3, uint triangleColor, uint edgeColor, int[] zBuffer, RenderMode renderMode, bool backfaceCulling)
{
Vec3i s1 = CalculateScreenCoordinates(v1);
Vec3i s2 = CalculateScreenCoordinates(v2);
Vec3i s3 = CalculateScreenCoordinates(v3);
if (!backfaceCulling && renderMode.HasFlag(RenderMode.Solid))
{
DrawTriangle(s1, s2, s3, triangleColor, ref zBuffer);
}
if (renderMode.HasFlag(RenderMode.Wireframe))
{
DrawLine(s1, s2, edgeColor);
DrawLine(s2, s3, edgeColor);
DrawLine(s3, s1, edgeColor);
}
}
protected override void OnRenderNext(RegExpr defaultTokenWs, RegExpr parent,
StringBuilder pattern, ref RenderMode mode)
{
base.OnRenderNext(defaultTokenWs, parent, pattern, ref mode);
var tokenWs = GetTokenWhitespace(defaultTokenWs);
if (NeedsWhitespaceGroup(tokenWs, mode))
{
pattern.Append(")");
}
if (Expr != null)
{
if (!mode.HasFlag(RenderMode.Assert) && !string.IsNullOrEmpty(Id))
{
pattern.AppendFormat("(?<{0}>", CaptureId);
}
else
{
pattern.Append("(?:");
}
}
}
protected override IEnumerable <RegExpr> OnRender(RegExpr defaultTokenWs, RegExpr parent,
StringBuilder pattern, ref RenderMode mode)
{
base.OnRender(defaultTokenWs, parent, pattern, ref mode);
if (mode.HasFlag(RenderMode.Assert))
{
throw new NestedAssertException();
}
switch (Context)
{
case AssertLook.Ahead:
if (Negative)
{
pattern.Append("(?!");
}
else
{
pattern.Append("(?=");
}
break;
case AssertLook.Behind:
if (Negative)
{
pattern.Append("(?<!");
}
else
{
pattern.Append("(?<=");
}
break;
}
mode |= RenderMode.Assert;
return(Items(Expr));
}
bool NeedsWhitespaceGroup(RegExpr tokenWs, RenderMode mode)
{
return(tokenWs != null && !mode.HasFlag(RenderMode.Assert) &&
(tokenWs is RegExprLiteral || tokenWs is RegExprSequence));
}