public static IEnumerable<string> Tokenize(string value)
{
if (value == null)
throw new ArgumentNullException("value");
PropertyPathTokenizer tokenizer = new PropertyPathTokenizer(value);
string token;
while (tokenizer.NextToken(out token))
yield return token;
}
public static IEnumerable <string> Tokenize(string value)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
PropertyPathTokenizer tokenizer = new PropertyPathTokenizer(value);
string token;
while (tokenizer.NextToken(out token))
{
yield return(token);
}
}
public static IEnumerable <PropertyPathSegment> Parse(string text)
{
string token = "";
bool inBrace = false;
bool inIndexer = false;
bool isSourceTraversal = false;
string lastToken = "";
foreach (string v in PropertyPathTokenizer.Tokenize(text))
{
lastToken = v;
if (v == "(")
{
inBrace = true;
continue;
}
if (v == "[")
{
inIndexer = true;
if (!inBrace && !string.IsNullOrEmpty(token))
{
yield return(new PropertyPathSegment(SegmentKind.PropertyOrType, token));
token = "";
}
continue;
}
if (v == ")")
{
inBrace = false;
if (!string.IsNullOrEmpty(token))
{
yield return(new PropertyPathSegment(SegmentKind.AttachedProperty, token));
}
token = "";
continue;
}
if (v == "]")
{
inIndexer = false;
if (!inBrace && !string.IsNullOrEmpty(token))
{
yield return(new PropertyPathSegment(SegmentKind.Indexer, token));
token = "";
}
continue;
}
if (inBrace)
{
token += v;
}
else if (inIndexer)
{
token += v;
}
else if (v == ".")
{
if (!string.IsNullOrEmpty(token))
{
yield return(new PropertyPathSegment(isSourceTraversal ? SegmentKind.SourceTraversal : SegmentKind.PropertyOrType, token));
}
token = "";
isSourceTraversal = false;
}
else if (v == "/")
{
token += v;
isSourceTraversal = true;
}
else
{
token += v;
}
}
if (inBrace && !string.IsNullOrEmpty(token))
{
yield return(new PropertyPathSegment(SegmentKind.AttachedProperty, "(" + token.Trim('.', '/')));
}
if (!string.IsNullOrEmpty(lastToken))
{
char c = lastToken.First();
if (c == ')' || c == ']')
{
yield break;
}
if (PropertyPathTokenizer.ControlChars.Contains(c))
{
yield return(new PropertyPathSegment(SegmentKind.ControlChar, c.ToString()));
}
else if (!inBrace && !string.IsNullOrEmpty(token))
{
yield return(new PropertyPathSegment(isSourceTraversal ? SegmentKind.SourceTraversal : SegmentKind.PropertyOrType, token));
}
}
}
