public static IEnumerable <JSegment> Parse(ITokenBuffer path)
{
var segments = new List <JSegment>();
var next = path.MoveNextNonEmptyChar();
if (next.HasValue && next.Value == JConstants.SegmentRootToken)
{
var root = new JSegment(SegmentType.Root, ExpandRoot);
next = path.MoveNextNonEmptyChar();
if (!next.HasValue)
{
segments.Add(root);
return(segments);
}
if (next == JConstants.ExpressionStartToken)
{//i contain an expression
var expr = path.MoveNext((s, i, c) => s[i + 1] == JConstants.ExpressionEndToken);
if (!string.IsNullOrEmpty(expr))
{
root = new JSegment(SegmentType.Root, ExpandRoot, expr);
}
JUtils.ValidateChar(path.MoveNext(), JConstants.ExpressionEndToken);
next = path.MoveNextNonEmptyChar();
}
segments.Add(root);
if (!next.HasValue)
{
return(segments);
}
JUtils.ValidateChar(next, JConstants.SegmentSeparatorToken);
}
bool hasMoreSegments = true;
while (hasMoreSegments)
{
var segment = path.MoveNext((s, i, c) =>
i == s.Length - 1 || s[i + 1] == JConstants.SegmentSeparatorToken);
var processedSegments = ProcessRawSegment(segment);
segments.AddRange(processedSegments);
next = path.MoveNext();
if (!next.HasValue)
{
hasMoreSegments = false;
}
else
{
JUtils.ValidateChar(next, JConstants.SegmentSeparatorToken);
}
}
return(segments);
}
public static JNode Find(IEnumerable <JSegment> expression, JNode json)
{
return(JSegment.Expand(expression, json));
}
public static JNode Find(string expression, JNode json)
{
return(JSegment.Expand(expression, json));
}
