System.Xml.Xsl.XsltOld.RootAction.MirgeAttributeSets C# (CSharp) Method

        private void MirgeAttributeSets(Stylesheet stylesheet) {
            // mirge stylesheet.AttributeSetTable to this.AttributeSetTable

            if (stylesheet.AttributeSetTable != null) {
                foreach (AttributeSetAction srcAttSet in stylesheet.AttributeSetTable.Values) {
                    ArrayList srcAttList = srcAttSet.containedActions;
                    AttributeSetAction dstAttSet = (AttributeSetAction) this.attributeSetTable[srcAttSet.Name];
                    if (dstAttSet == null) {
                        dstAttSet = new AttributeSetAction(); {
                            dstAttSet.name             = srcAttSet.Name;
                            dstAttSet.containedActions = new ArrayList();
                        }
                        this.attributeSetTable[srcAttSet.Name] = dstAttSet;
                    }
                    ArrayList dstAttList = dstAttSet.containedActions;
                    // We adding attributes in reverse order for purpuse. In the mirged list most importent attset shoud go last one
                    // so we'll need to invert dstAttList finaly. 
                    if (srcAttList != null) {
                        for(int src = srcAttList.Count - 1; 0 <= src; src --) {
                            // We can ignore duplicate attibutes here.
                            dstAttList.Add(srcAttList[src]);
                        }
                    }
                }
            }

            foreach (Stylesheet importedStylesheet in stylesheet.Imports) {
                MirgeAttributeSets(importedStylesheet);
            }
        }