public string Generate(RegexOperator rxop)
{
if (rxop == null)
{
return("");
}
else
{
var sb = new StringBuilder();
GenerateStub(Root, rxop, sb);
return(sb.ToString());
}
}
public Migemo(Stream stream, RegexOperator regexOperator)
{
Dictionary = new CompactDictionary(stream);
RegexOperator = regexOperator;
}
static void GenerateStub(Node node, RegexOperator rxop, StringBuilder buf)
{
var escapeCharacters = "\\.[]{}()*+-?^$|".ToCharArray();
var brother = 1;
var haschild = 0;
for (var tmp = node; tmp != null; tmp = tmp.Next)
{
if (tmp.Next != null)
{
brother++;
}
if (tmp.Child != null)
{
haschild++;
}
}
var nochild = brother - haschild;
if (brother > 1 && haschild > 0)
{
buf.Append(rxop.BeginGroup);
}
if (nochild > 0)
{
if (nochild > 1)
{
buf.Append(rxop.BeginClass);
}
for (var tmp = node; tmp != null; tmp = tmp.Next)
{
if (tmp.Child != null)
{
continue;
}
if (Array.IndexOf(escapeCharacters, tmp.Code) != -1)
{
buf.Append("\\");
}
buf.Append(tmp.Code);
}
if (nochild > 1)
{
buf.Append(rxop.EndClass);
}
}
if (haschild > 0)
{
if (nochild > 0)
{
buf.Append(rxop.Or);
}
Node tmp;
for (tmp = node; tmp.Child == null; tmp = tmp.Next)
{
}
while (true)
{
if (Array.IndexOf(escapeCharacters, tmp.Code) != -1)
{
buf.Append("\\");
}
buf.Append(tmp.Code);
if (rxop.Newline != null)
{
buf.Append(rxop.Newline);
}
GenerateStub(tmp.Child, rxop, buf);
for (tmp = tmp.Next; tmp != null && tmp.Child == null; tmp = tmp.Next)
{
}
if (tmp == null)
{
break;
}
if (haschild > 1)
{
buf.Append(rxop.Or);
}
}
}
if (brother > 1 && haschild > 0)
{
buf.Append(rxop.EndGroup);
}
}
public Migemo(byte[] bytes, RegexOperator regexOperator)
: this(new MemoryStream(bytes), regexOperator)
{
}