public bool HasSameSegments(ArrayRun other)
{
if (other == null)
{
return(false);
}
if (other.ElementContent.Count != ElementContent.Count)
{
return(false);
}
for (int i = 0; i < ElementContent.Count; i++)
{
var mine = ElementContent[i];
var theirs = other.ElementContent[i];
if (mine.Type != theirs.Type || mine.Length != theirs.Length)
{
return(false);
}
if (mine is ArrayRunEnumSegment enumSegment)
{
if (!(theirs is ArrayRunEnumSegment enumSegment2))
{
return(false);
}
if (enumSegment.EnumName != enumSegment2.EnumName)
{
return(false);
}
}
if (mine is ArrayRunPointerSegment pointerSegment)
{
if (!(theirs is ArrayRunPointerSegment pointerSegment2))
{
return(false);
}
if (pointerSegment.InnerFormat != pointerSegment2.InnerFormat)
{
return(false);
}
}
}
return(true);
}
public TableStreamRun(
IDataModel model,
int start,
SortedSpan <int> sources,
string formatString,
IReadOnlyList <ArrayRunElementSegment> parsedSegments,
IStreamEndStrategy endStream,
int elementCountOverride
) : base(start, sources)
{
if (parsedSegments == null)
{
parsedSegments = ArrayRun.ParseSegments(formatString.Substring(1, formatString.Length - 2), model);
}
this.model = model;
ElementContent = parsedSegments;
this.endStream = endStream;
ElementLength = parsedSegments.Sum(segment => segment.Length);
ElementCount = elementCountOverride >= 0 ? elementCountOverride : endStream.GetCount(start, ElementLength, sources);
Length = ElementLength * ElementCount + endStream.ExtraLength;
FormatString = formatString;
}
public HeaderRow(ArrayRun source, int byteStart, int length)
{
var headers = new List <ColumnHeader>();
// we know which 'byte' to start at, but we want to know what 'index' to start at
// basically, count off each element to figure out how big it is
int currentByte = 0;
int startIndex = 0;
while (currentByte < byteStart)
{
currentByte += source.ElementContent[startIndex % source.ElementContent.Count].Length;
startIndex++;
}
int initialPartialSegmentLength = currentByte - byteStart;
if (initialPartialSegmentLength > 0)
{
startIndex--;
}
currentByte = 0;
for (int i = 0; currentByte < length; i++)
{
var segment = source.ElementContent[(startIndex + i) % source.ElementContent.Count];
if (initialPartialSegmentLength != 0)
{
headers.Add(new ColumnHeader(segment.Name, initialPartialSegmentLength));
currentByte += initialPartialSegmentLength;
}
else
{
headers.Add(new ColumnHeader(segment.Name, segment.Length));
currentByte += segment.Length;
}
initialPartialSegmentLength = 0;
}
ColumnHeaders = headers;
}
public static bool TrySearch(IDataModel data, ModelDelta changeToken, string originalFormat, out ArrayRun self, Func <IFormattedRun, bool> runFilter = null)
{
self = null;
var format = originalFormat;
var allowPointersToEntries = format.StartsWith(AnchorStart.ToString());
if (allowPointersToEntries)
{
format = format.Substring(1);
}
var closeArray = format.LastIndexOf(ArrayEnd.ToString());
if (!format.StartsWith(ArrayStart.ToString()) || closeArray == -1)
{
throw new ArrayRunParseException($"Array Content must be wrapped in {ArrayStart}{ArrayEnd}");
}
var segments = format.Substring(1, closeArray - 1);
var length = format.Substring(closeArray + 1);
var elementContent = ParseSegments(segments, data);
if (elementContent.Count == 0)
{
return(false);
}
var elementLength = elementContent.Sum(e => e.Length);
using (ModelCacheScope.CreateScope(data)) {
if (string.IsNullOrEmpty(length))
{
var bestAddress = StandardSearch(data, elementContent, elementLength, out int bestLength, runFilter);
if (bestAddress == Pointer.NULL)
{
return(false);
}
self = new ArrayRun(data, originalFormat + bestLength, string.Empty, bestAddress, bestLength, elementContent, data.GetNextRun(bestAddress).PointerSources, null);
}
else
{
var bestAddress = KnownLengthSearch(data, elementContent, elementLength, length, out int bestLength, runFilter);
if (bestAddress == Pointer.NULL)
{
return(false);
}
var lengthFromAnchor = int.TryParse(length, out var _) ? string.Empty : length;
self = new ArrayRun(data, originalFormat, lengthFromAnchor, bestAddress, bestLength, elementContent, data.GetNextRun(bestAddress).PointerSources, null);
}
}
if (allowPointersToEntries)
{
self = self.AddSourcesPointingWithinArray(changeToken);
}
return(true);
}
public static ErrorInfo TryParse(IDataModel data, string format, int start, IReadOnlyList <int> pointerSources, out ArrayRun self)
{
try {
using (ModelCacheScope.CreateScope(data)) {
self = new ArrayRun(data, format, start, pointerSources);
}
} catch (ArrayRunParseException e) {
self = null;
return(new ErrorInfo(e.Message));
}
return(ErrorInfo.NoError);
}
