/// <summary> /// Attempts to extract the items in the given item vector. Item vectors embedded in strings, and item vectors with /// separator specifications are considered invalid, because it is not clear if those item vectors are meant to be lists /// or strings -- if the latter, the ExpandEmbeddedItemVectors() method should be used instead. /// </summary> /// <owner>SumedhK;RGoel</owner> /// <param name="itemVectorExpression"></param> /// <param name="parentNode"></param> /// <param name="itemsByType"></param> /// <returns>a virtual BuildItemGroup containing the items resulting from the expression, or null if the expression was invalid.</returns> internal static BuildItemGroup ItemizeItemVector ( string itemVectorExpression, XmlNode parentNode, ReadOnlyLookup readOnlyLookup ) { Match throwAwayMatch; return(ItemExpander.ItemizeItemVector(itemVectorExpression, parentNode, readOnlyLookup, out throwAwayMatch)); }
/// <summary> /// Attempts to extract the items in the given item vector expression. Item vectors embedded in strings, /// and item vectors with separator specifications are considered invalid, because it is not clear /// if those item vectors are meant to be lists or strings -- if the latter, the ExpandEmbeddedItemVectors() /// method should be used instead. /// </summary> /// <param name="itemVectorExpression"></param> /// <param name="parentNode"></param> /// <param name="readOnlyLookup"></param> /// <param name="itemVectorMatch"></param> /// <returns>a virtual BuildItemGroup containing the items resulting from the expression, or null if the expression was invalid.</returns> /// <owner>SumedhK;RGoel</owner> internal static BuildItemGroup ItemizeItemVector ( string itemVectorExpression, XmlNode parentNode, ReadOnlyLookup readOnlyLookup, out Match itemVectorMatch ) { itemVectorMatch = null; BuildItemGroup items = null; itemVectorMatch = GetItemVectorMatches(itemVectorExpression); if (itemVectorMatch != null && itemVectorMatch.Success) { // The method above reports a match if there are any // valid @(itemlist) references in the given expression. // If the passed-in expression contains exactly one item list reference, // with nothing else concatenated to the beginning or end, then proceed // with itemizing it, otherwise error. ProjectErrorUtilities.VerifyThrowInvalidProject(itemVectorMatch.Value == itemVectorExpression, parentNode, "EmbeddedItemVectorCannotBeItemized", itemVectorExpression); ItemExpander itemExpander = new ItemExpander(parentNode, readOnlyLookup); // If the reference contains a separator, we need to flatten the list into a scalar and then create // an item group with a single item. This is necessary for VSWhidbey 525917 - basically we need this // to be able to convert item lists with user specified separators into properties. if (itemVectorMatch.Groups["SEPARATOR_SPECIFICATION"].Length > 0) { string expandedItemVector = itemExpander.ExpandItemVector(itemVectorMatch); string itemType = itemVectorMatch.Groups["TYPE"].Value; items = new BuildItemGroup(); if (expandedItemVector.Length > 0) { items.AddNewItem(itemType, expandedItemVector); } } else { items = itemExpander.ItemizeItemVector(itemVectorMatch); } ErrorUtilities.VerifyThrow(items != null, "ItemizeItemVector shouldn't give us null."); } return(items); }