private void T(string text, params string[] expectedParts)
{
var actual = MSBuildExpressionParser.SplitStringByPropertiesAndItems(text);
var equal = expectedParts.SequenceEqual(actual);
Assert.IsTrue(equal);
}
private static IEnumerable <ReferenceSpan> ProcessExpressions(int start, string text, ExpressionProcessor customStringProcessor = null, string referencingItemName = null)
{
var parts = MSBuildExpressionParser.SplitStringByPropertiesAndItems(text);
int lengthSoFar = 0;
foreach (var part in parts)
{
if (part.StartsWith("$(") && part.EndsWith(")"))
{
var propertyName = part.Substring(2, part.Length - 3);
string suffix = "";
int dot = propertyName.IndexOf('.');
if (dot > -1)
{
suffix = propertyName.Substring(dot);
propertyName = propertyName.Substring(0, dot);
}
var currentPosition = start + lengthSoFar + 2;
yield return(new ReferenceSpan()
{
Start = currentPosition,
Length = propertyName.Length,
Reference = CreatePropertyReference(propertyName, isAssignment: false)
});
}
else if (
part.StartsWith("@(") &&
(part.EndsWith(")") || part.EndsWith("-") || part.EndsWith(",")) &&
!part.Contains("%"))
{
int suffixLength = 1;
var itemName = part.Substring(2, part.Length - 2 - suffixLength);
string suffix = part.Substring(part.Length - suffixLength, suffixLength);
var currentPosition = start + lengthSoFar + 2;
yield return(new ReferenceSpan()
{
Start = currentPosition,
Length = itemName.Length,
Reference = CreateItemReference(itemName, isAssignment: false)
});
}
else if (part.StartsWith("%(") && part.EndsWith(")"))
{
int suffixLength = 1;
var metadataName = part.Substring(2, part.Length - 2 - suffixLength);
var length = metadataName.Length;
string suffix = part.Substring(part.Length - suffixLength, suffixLength);
string itemName = referencingItemName;
int lastDot = metadataName.LastIndexOf(".");
if (lastDot > -1)
{
itemName = metadataName.Substring(0, lastDot);
metadataName = metadataName.Substring(lastDot + 1);
}
var currentPosition = start + lengthSoFar + 2;
yield return(new ReferenceSpan()
{
Start = currentPosition,
Length = length,
Reference = CreateItemMetadataReference(itemName, metadataName, isAssignment: false)
});
}
else
{
var processed = part;
if (customStringProcessor != null)
{
var currentPosition = start + lengthSoFar;
foreach (var span in customStringProcessor(currentPosition, processed))
{
yield return(span);
}
}
}
lengthSoFar += part.Length;
}
}
