00001 00002 // 00003 // XML storage classes version 1.5 00004 // 00005 // XMLChildrenFilter.cs 00006 // 00007 // Copyright (c) 2010 Martin Fuchs <martin-fuchs@gmx.net> 00008 // 00009 00010 00011 /* 00012 00013 All rights reserved. 00014 00015 Redistribution and use in source and binary forms, with or without 00016 modification, are permitted provided that the following conditions are met: 00017 00018 * Redistributions of source code must retain the above copyright 00019 notice, this list of conditions and the following disclaimer. 00020 * Redistributions in binary form must reproduce the above copyright 00021 notice, this list of conditions and the following disclaimer in 00022 the documentation and/or other materials provided with the 00023 distribution. 00024 00025 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00026 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00027 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00028 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 00029 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00030 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00031 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00032 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00033 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00034 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00035 POSSIBILITY OF SUCH DAMAGE. 00036 00037 */ 00038 00039 using System.Collections.Generic; 00040 00041 namespace XMLStorage 00042 { 00043 00044 /** 00045 * XMLChildrenFilter provides iterator access to XMLStorage child nodes 00046 * with name filtering. 00047 */ 00048 public static class XMLChildrenFilter 00049 { 00050 public static IEnumerable<XMLNode> filterChildren(XMLNode node, string name) 00051 { 00052 return filterChildren(node.getChildren(), name); 00053 } 00054 00055 public static IEnumerable<XMLNode> filterChildren(XMLPos pos, string name) 00056 { 00057 return filterChildren(pos.cur().getChildren(), name); 00058 } 00059 00060 public static IEnumerable<XMLNode> filterChildren(XMLNode.Children children, string name) 00061 { 00062 foreach(XMLNode node in children) { 00063 if (node.getName() == name) 00064 yield return node; 00065 } 00066 } 00067 } 00068 00069 } // namespace XMLStorage