private void UpdateParents(ModelDelta token, ITableRun parent, int segmentIndex, int newValue, IReadOnlyList <int> pointerSources)
{
var segmentOffset = parent.ElementContent.Take(segmentIndex).Sum(segment => segment.Length);
var segmentLength = parent.ElementContent[segmentIndex].Length;
foreach (var source in pointerSources)
{
var offsets = parent.ConvertByteOffsetToArrayOffset(source);
if (offsets.ElementIndex < 0 || offsets.ElementIndex > parent.ElementCount)
{
continue;
}
if (model.ReadMultiByteValue(parent.Start + offsets.ElementIndex * parent.ElementLength + segmentOffset, segmentLength) != newValue)
{
model.WriteMultiByteValue(parent.Start + offsets.ElementIndex * parent.ElementLength + segmentOffset, segmentLength, token, newValue);
}
}
}
public ModelArrayElement(IDataModel model, int address, int index)
{
(this.model, arrayAddress, arrayIndex) = (model, address, index);
table = (ITableRun)model.GetNextRun(arrayAddress);
}
public static int ParseValue(IDataModel model, ITableRun table, int elementIndex, string content)
{
if (string.IsNullOrEmpty(content))
{
return(0);
}
if (int.TryParse(content, out int simpleValue))
{
return(simpleValue);
}
if (content == "last")
{
return(table.ElementCount - 1);
}
if (table != null && table.ElementContent.Any(seg => seg.Name == content))
{
return(table.ReadValue(model, elementIndex, content));
}
if (content.MatchesPartial("(/=)/"))
{
var parts = content.Split("(/=)".ToCharArray());
var message = $"Expected {content} to fit the form (table/field=local)/field. But it didn't.";
if (parts.Length != 6)
{
throw new NotImplementedException(message);
}
if (!string.IsNullOrEmpty(parts[0]) || !string.IsNullOrEmpty(parts[4]))
{
throw new NotImplementedException(message);
}
var matchTableName = parts[1];
var matchTableField = parts[2];
var matchLocalField = parts[3];
var localFieldValue = ParseValue(model, table, elementIndex, matchLocalField);
var valueField = parts[5];
var matchTable = model.GetTable(matchTableName);
if (matchTable == null)
{
return(0);
}
for (int i = 0; i < matchTable.ElementCount; i++)
{
if (matchTable.ReadValue(model, i, matchTableField) != localFieldValue)
{
continue;
}
return(ParseValue(model, matchTable, i, valueField));
}
return(ParseValue(model, matchTable, matchTable.ElementCount - 1, valueField));
}
if (content.MatchesPartial("//"))
{
var parts = content.Split("/");
var message = $"Expected {content} to fit the form field/index/field. But it didn't.";
if (parts.Length != 3)
{
throw new NotImplementedException(message);
}
var destination = table.ReadPointer(model, elementIndex, parts[0]);
if (destination == Pointer.NULL)
{
return(0);
}
var childTable = model.GetNextRun(destination) as ITableRun;
if (childTable == null)
{
throw new NotImplementedException(message);
}
var childTableIndex = ParseValue(model, childTable, elementIndex, parts[1]);
return(ParseValue(model, childTable, childTableIndex, parts[2]));
}
throw new NotImplementedException();
}
protected ArrayRunPointerSegment GetSegment(ITableRun table, int pointerAddress)
{
var offsets = table.ConvertByteOffsetToArrayOffset(pointerAddress);
return((ArrayRunPointerSegment)table.ElementContent[offsets.SegmentIndex]);
}
