XML 解析生成工具

using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using UnityEngine;/*----------------------------------------------------------------
// Copyright (C) 2017
//
// 模块名：轻量级XML工具
// 创建者：Cheng
// 修改者列表：
// 创建日期：2/28/2017
// 模块描述：
//----------------------------------------------------------------*/
namespace Garson
{public class XML{private XmlNode root;public XML() { }public XML(string xml){Parse(xml);}/// <summary>/// 从根节点获取Element/// </summary>/// <param name="path">路径，eg:"Root/Node/Element"</param>/// <returns></returns>public XmlNode GetElement(string path){string[] paths = path.Split('/');var p = root;for (int i = 0; i < paths.Length; i++){p = p.GetElement(paths[i]);if(p == null)break;}return p;}/// <summary>/// 在指定节点下插入新元素/// </summary>/// <param name="path">如果path为空则插入在根节点</param>/// <param name="name">新节点名称</param>/// <returns></returns>public XmlNode AddNode(string path, string name){if(root == null)root = new XmlNode();if (string.IsNullOrEmpty(path)){XmlNode node = new XmlNode {name = name};root.AddChild(node);return node;}else{var parent = GetElement(path);if (parent == null){Debug.LogError("Error: Cannot find path:" + path);return null;}XmlNode node = new XmlNode();node.name = name;parent.AddChild(node);return node;}}/// <summary>/// 在指定路径下插入新节点/// </summary>/// <param name="path">如果路径不存在，会创建相应的节点</param>/// <param name="name">新节点名称</param>/// <returns></returns>public XmlNode AddNodeIgnorePath(string path, string name){if (root == null)root = new XmlNode();string[] paths = path.Split('/');var p = root;for (int i = 0; i < paths.Length; i++){var c = p.GetElement(paths[i]);if (p == null){c = new XmlNode(){name = paths[i]};p.AddChild(c);}p = c;}var node = new XmlNode(){name = name};p.AddChild(node);return node;}/// <summary>/// 添加属性/// </summary>/// <param name="path">该路径下的节点</param>/// <param name="key">属性名</param>/// <param name="value">属性值</param>/// <returns></returns>public bool AddAttribute(string path, string key, string value){var p = GetElement(path);if (p == null) return false;p.AddAttribute(key, value);return true;}public override string ToString(){return Print();}/// <summary>/// 把XML转化成字符串/// </summary>/// <returns></returns>public string Print(){StringBuilder stringBuilder = new StringBuilder();stringBuilder.AppendLine("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");var elements = root.GetElements();foreach (var element in elements){BuildString(stringBuilder, element, 0);}return stringBuilder.ToString();}/// <summary>/// 递归调用/// </summary>/// <param name="stringBuilder"></param>/// <param name="element"></param>/// <param name="tab">每行前加制表符个数</param>private void BuildString(StringBuilder stringBuilder, XmlNode element, int tab){for (int i = 0; i < tab; i++){stringBuilder.Append("\t");}stringBuilder.Append("<");stringBuilder.Append(element.name);if (element.HasAttribute()){stringBuilder.Append(" ");var attrs = element.GetAttributes();foreach (var key in attrs.Keys){stringBuilder.Append(key);stringBuilder.Append("=\"");stringBuilder.Append(attrs[key]);stringBuilder.Append("\" ");}}if (element.HasChild()){stringBuilder.AppendLine(">");var childern = element.GetElements();foreach (var child in childern){BuildString(stringBuilder, child, tab+1);}for (int i = 0; i < tab; i++){stringBuilder.Append("\t");}stringBuilder.AppendLine("</" + element.name + ">");}else if (!string.IsNullOrEmpty(element.text)){stringBuilder.Append(">");stringBuilder.Append(element.text);stringBuilder.AppendLine("</" + element.name + ">");}else{stringBuilder.AppendLine(" />");}}private const char LT = '<';private const char GT = '>';private const char DASH = '-';private const char SPACE = ' ';private const char QUOTE = '"';private const char SLASH = '/';private const char QMARK = '?';private const char EQUALS = '=';private const char EXCLAMATION = '!';private enum ElementType{/// <summary>/// 元标签/// </summary>METATAG,/// <summary>/// 注释/// </summary>COMMENT,/// <summary>/// 声明/// </summary>DOCTYPE,/// <summary>/// 字符数据/// </summary>CDATA,/// <summary>/// 空/// </summary>NONE,}/// <summary>/// Xml解析，会覆盖已存在的XML/// </summary>/// <param name="xml"></param>public void Parse(string xml){if(string.IsNullOrEmpty(xml))return;xml = xml.Replace("\n", " ");root = new XmlNode();ElementType cType = ElementType.NONE;char c; //current charchar cp; //c previouschar cn; //c nextchar cnn; // c next nextStack<XmlNode> xmlStack = new Stack<XmlNode>();xmlStack.Push(root);int length = xml.Length;bool collectingName = false;bool collectingAttribute = false;string name = "";string attr = "";for (int i = 0; i < length; i++){c = cp = cn = cnn = '\0';c = xml[i];if (i > 0) cp = xml[i - 1];if (i + 1 < length) cn = xml[i + 1];if (i + 2 < length) cnn = xml[i + 2];if (cType == ElementType.NONE){if (c == LT){if (xmlStack.Count > 0){if (!string.IsNullOrEmpty(name.Trim()))// top ele's text eg.<aa>****</aa>{var node = xmlStack.Peek();node.text = name.Trim();}}name = "";if (cn == QMARK)//<?*****?>{cType = ElementType.METATAG;i++;continue;}if (cn == EXCLAMATION && cnn == DASH)//<!-->{cType = ElementType.COMMENT;i++;continue;}if (cn == EXCLAMATION)//<![[*******>{cType = ElementType.DOCTYPE;i++;continue;}if (cn == SLASH)//</***>{cType = ElementType.CDATA;continue;}//create newcType = ElementType.CDATA;collectingName = false;collectingAttribute = false;name = "";attr = "";XmlNode xmlNode = new XmlNode();if (xmlStack.Count > 0){var parent = xmlStack.Peek();parent.AddChild(xmlNode);}xmlStack.Push(xmlNode);continue;}else{name += c;}}if (cType == ElementType.METATAG){if (c == QMARK && cn == GT){i++;cType = ElementType.NONE;continue;}elsecontinue;}if (cType == ElementType.COMMENT){if (c == DASH && cn == DASH && cnn == GT){i += 2;cType = ElementType.NONE;continue;}elsecontinue;}if (cType == ElementType.DOCTYPE){if (c == GT) cType = ElementType.NONE;continue;}if (cType == ElementType.CDATA){if (collectingName){if (c == SPACE || c == GT){var node = xmlStack.Peek();if (string.IsNullOrEmpty(node.name)){node.name = name.Trim();collectingName = false;name = "";}if (c == GT){cType = ElementType.NONE;continue;}}else if (c == SLASH && cn == GT){var node = xmlStack.Peek();node.name = name.Trim();collectingName = false;cType = ElementType.NONE;name = "";i++;xmlStack.Pop();continue;}else if (c == EQUALS){if (cn == QUOTE){collectingName = false;collectingAttribute = true;attr = "";i++;continue;}elseDebug.LogError("Error: Attribute '\"' is not near '=' in char index:" + i );}else{name += c;}}else if(collectingAttribute){if (c == QUOTE){collectingAttribute = false;var node = xmlStack.Peek();node.AddAttribute(name.Trim(), attr);name = "";attr = "";}else{attr += c;}}else{if(c == SPACE) continue;if (c == GT){cType = ElementType.NONE;continue;}if (c == SLASH && cn == GT){cType = ElementType.NONE;xmlStack.Pop();i++;continue;}if (c == SLASH){name = "";int j = i + 1;for (; j < length; j++){if (xml[j] == GT){break;}else{name += xml[j];}}var node = xmlStack.Peek();if (node.name.Equals(name)){xmlStack.Pop();}else{Debug.LogError("Error: current is /, name is "+ name + ", but top node name is "+ node.name );}i = j;cType = ElementType.NONE;name = "";continue;}name += c;collectingName = true;}}}}}public class XmlNode{public string text { get; set; }public string name { get; set; }private List<XmlNode> children;private Dictionary<string, string> attributes;public XmlNode(){children = new List<XmlNode>();attributes = new Dictionary<string, string>();name = string.Empty;text = string.Empty;}public bool HasChild(){return children.Count > 0;}public bool HasAttribute(){return attributes.Count > 0;}public void AddChild(XmlNode child){children.Add(child);}/// <summary>/// 移除子节点/// </summary>/// <param name="index">从0开始的下标</param>/// <returns></returns>public XmlNode RemoveChild(int index){if (children.Count > index){var node = children[index];children.RemoveAt(index);return node;}return null;}/// <summary>/// 添加属性，已存在则会覆盖/// </summary>/// <param name="key"></param>/// <param name="value"></param>public void AddAttribute(string key, string value){if (attributes.ContainsKey(key))attributes[key] = value;elseattributes.Add(key, value);}public void RemoveAttribute(string key){attributes.Remove(key);}/// <summary>/// 获取节点/// </summary>/// <param name="index">从0开始的下标</param>/// <returns></returns>public XmlNode GetElement(int index){if (children.Count > index)return children[index];return null;}public XmlNode GetElement(string cname){foreach (var child in children){if (child.name.Equals(cname))return child;}return null;}public List<XmlNode> GetElements(){return children;}public string GetAttribute(string key){if (attributes.ContainsKey(key))return attributes[key];return string.Empty;}public Dictionary<string, string> GetAttributes(){return attributes;}public string[] GetAttributeArray(string key){string value = GetAttribute(key);return value.Split(',');}}
}

轻量级的XML解析生成工具，具体使用如注释，可能会有坑，但是我自己还没遇到。

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