public override ResultColumn Clone()
{
var ret = new ResultExpr((Expr)_value.Clone(), _hasAs, _aliasName, this.Comments.Clone());
ret.Attachment = this.Attachment;
return(ret);
}
void IVisitor.VisitBefore(ResultExpr resultExpr)
{
this.ParentExists(resultExpr);
}
void IVisitor.VisitAfter(ResultExpr resultExpr)
{
this.ParentExists(resultExpr);
}
public static Result Parse(string text)
{
var result = new Result();
if (string.IsNullOrEmpty(text))
{
return(result);
}
var names = result.m_NamesExpr;
var types = result.types;
var labels = result.labels;
var builder = new System.Text.StringBuilder(64);
var loopguard = 0;
var condition = LogicalOperator.And;
var not = false;
var exact = false;
var n = 0;
while (n < text.Length)
{
if (++loopguard > 10000)
{
break;
}
SkipWhiteSpace(text, ref n);
if (n + 1 < text.Length)
{
if (text[n] == '&' && text[n + 1] == '&')
{
n += 2;
condition = LogicalOperator.And;
exact = false;
continue;
}
if (text[n] == '|' && text[n + 1] == '|')
{
n += 2;
condition = LogicalOperator.Or;
exact = false;
continue;
}
if (text[n] == '=' && text[n + 1] == '=')
{
n += 2;
exact = true;
continue;
}
if (text[n] == '!') // && !char.IsWhiteSpace(text[n+1]))
{
n += 1;
not = true;
continue;
}
if (text[n] == '\"' || text[n] == '„')
{
GetNextQuotedWord(text, ref n, builder);
if (builder.Length > 0)
{
if (names.Count > 0 && condition == LogicalOperator.Or)
{
names[names.Count - 1].Op = LogicalOperator.Or;
}
var r = new ResultExpr();
r.Op = condition;
r.Text = builder.ToString().Trim();
r.Not = not;
r.Exact = exact;
names.Add(r);
builder.Length = 0;
not = false;
condition = LogicalOperator.And;
}
continue;
}
if (text[n + 1] == ':')
{
if (text[n] == 't' || text[n] == 'T') // type
{
n += 2;
SkipWhiteSpace(text, ref n);
GetNextWord(text, ref n, builder);
if (builder.Length > 0)
{
var type = builder.ToString().Trim();
if (string.Compare(type, "prefab", StringComparison.OrdinalIgnoreCase) == 0)
{
type = "GameObject";
}
types.Add(type);
builder.Length = 0;
continue;
}
}
else if (text[n] == 'l' || text[n] == 'L') // label
{
n += 2;
SkipWhiteSpace(text, ref n);
GetNextWord(text, ref n, builder);
if (builder.Length > 0)
{
labels.Add(builder.ToString().Trim());
builder.Length = 0;
continue;
}
}
}
}
GetNextWord(text, ref n, builder);
if (builder.Length > 0)
{
if (names.Count > 0 && condition == LogicalOperator.Or)
{
names[names.Count - 1].Op = LogicalOperator.Or;
}
var r = new ResultExpr();
r.Op = condition;
r.Text = builder.ToString().Trim();
r.Not = not;
r.Exact = exact;
names.Add(r);
builder.Length = 0;
not = false;
condition = LogicalOperator.And;
continue;
}
}
//builder.Length = 0;
//for (n = 0; n < names.Count; ++n)
// builder.AppendLine("Name: " + names[n]);
//for (n = 0; n < types.Count; ++n)
// builder.AppendLine("Type: " + types[n]);
//for (n = 0; n < labels.Count; ++n)
// builder.AppendLine("Label: " + labels[n]);
foreach (var v in result.m_NamesExpr)
{
result.names.Add(v.Text);
}
// sort by operator. AND first, OR second
var nam = new List <ResultExpr>();
foreach (var v in result.m_NamesExpr)
{
if (v.Op == LogicalOperator.And)
{
nam.Add(v);
}
}
foreach (var v in result.m_NamesExpr)
{
if (v.Op == LogicalOperator.Or)
{
nam.Add(v);
}
}
result.m_NamesExpr = nam;
//foreach (var e in result.NamesExpr)
// UnityEngine.Debug.Log("Op: " + e.Op + (e.Not ? " not " : "") + (e.Exact ? " exact " : "") + ", " + e.Text);
return(result);
}