C# HtmlAgilityPack.HtmlDocument.CreateNavigator方法代码示例

        private static EnvironmentConfig getConfigFromFile(FileInfo fileInfo)
        {
            EnvironmentConfig cfg = new EnvironmentConfig();
            cfg.FileInfo = fileInfo;
            cfg.IsGuardServerAllowed = !System.Text.RegularExpressions.Regex.IsMatch(fileInfo.Name, "NoGS", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
            cfg.Name = System.Text.RegularExpressions.Regex.Replace(fileInfo.Name, @"\.ttmd\.cfg", String.Empty, System.Text.RegularExpressions.RegexOptions.IgnoreCase);
            cfg.Name = System.Text.RegularExpressions.Regex.Replace(cfg.Name, @"\.NoGS", String.Empty, System.Text.RegularExpressions.RegexOptions.IgnoreCase);

            using (var reader = fileInfo.OpenRead())
            {
                HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();
                doc.Load(reader);

                var xpathNavi = doc.CreateNavigator();
                var multicastNode = xpathNavi.SelectSingleNode("/ttmconfiguration[1]/multicastgroups[1]");
                if (multicastNode != null && !String.IsNullOrEmpty(multicastNode.Value))
                {
                    cfg.Multicast = multicastNode.Value.Replace("> =", String.Empty).Trim();
                }

                var daemonNode = xpathNavi.SelectSingleNode("/ttmconfiguration[1]/proxy[1]/daemon1[1]");
                if (daemonNode != null && !String.IsNullOrEmpty(daemonNode.Value))
                {
                    var regex = new System.Text.RegularExpressions.Regex(@"\d+\.\d+\.\d+\.\d+", System.Text.RegularExpressions.RegexOptions.IgnoreCase | System.Text.RegularExpressions.RegexOptions.Multiline);
                    var match = regex.Match(daemonNode.Value);

                    if (match.Success)
                    {
                        cfg.RemoteDaemon = match.Value;
                        cfg.Multicast = null;
                    }
                }
            }
            return cfg;
        }

        private static String ParseSaveAndFixImages(string contents, string dirPath)
        {
            contents = System.Web.HttpUtility.HtmlDecode(contents);
            HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();
            doc.Load(new StringReader(contents));
            var nav = doc.CreateNavigator();
            var strExpression = "//img";

            HtmlAgilityPack.HtmlNodeCollection imgTags = doc.DocumentNode.SelectNodes(strExpression);
            if (imgTags != null)
            {
                foreach (HtmlAgilityPack.HtmlNode tag in imgTags)
                {
                    if (tag.Attributes["src"] != null)
                    {
                        String imgPath = tag.Attributes["src"].Value;
                        tag.Attributes["src"].Value = GetAndSaveImage(imgPath, dirPath);
                    }
                }
            }

            string finalContents = null;
            using (StringWriter sw = new StringWriter())
            {
                doc.Save(sw);
                finalContents = sw.ToString();
            }

            return finalContents;
        }

        private static List<Choice> ParseChoices(string choicesHtml)
        {
            choicesHtml = System.Web.HttpUtility.HtmlDecode(choicesHtml);
            var choices = new List<Choice>();

            /*
             * <div id="room-choices"><h2>You have 4 choices:</h2>
             * <ul class="choices">
             * <li><a href="/story/choice.php?id=184898" title="184898,94419">Years later&hellip;</a></li>
             * <li><a href="/story/choice.php?id=184899" title="184899,94416">The Empire (Lies)</a></li>
             * <li><a href="/story/choice.php?id=184900" title="184900,94417">The Empire (Truth)</a></li>
             * <li><a href="/story/choice.php?id=184901" title="184901,94418">The Eternal Program (Hope)</a></li>
             * </ul>
             * </div> 
             */


            HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();
            doc.Load(new StringReader(choicesHtml));
            var nav = doc.CreateNavigator();
            var strExpression = "//a";

            foreach (HtmlAgilityPack.HtmlNode link in doc.DocumentNode.SelectNodes(strExpression))
            {

                string titleValue = link.GetAttributeValue("title", null);
                String[] titleSplit = titleValue.Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries);
                Choice choice = new Choice(titleSplit[0], titleSplit[1], link.InnerHtml);
                choices.Add(choice);
            }

            return choices;
        }

        private void go_button_Click(object sender, EventArgs e)
        {
            ProgressDialog d = new ProgressDialog();
            string character_path = character_box.Text;
            string macro_path = macro_box.Text;
            List<PowerInfo> powers = new List<PowerInfo>();
            Dictionary<string, int> skills = new Dictionary<string, int>();
            System.Text.RegularExpressions.Regex img_remover = new System.Text.RegularExpressions.Regex(@"<img.*?>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);

            // save the value of the checkbox
            m_use_compendium = compendium_check.Checked;

            d.AddTask((progress) =>
            {
                progress.Update("Scanning character sheet...");

                using (FileStream fs = File.OpenRead(character_path))
                {
                    XPathDocument doc = new XPathDocument(fs);
                    XPathNavigator nav = doc.CreateNavigator();
                    XPathNodeIterator power_iter, weapon_iter;

                    // select all power nodes
                    power_iter = nav.Select("/D20Character/CharacterSheet/PowerStats/Power");

                    // update the progress steps
                    progress.Update(0, power_iter.Count);

                    // iterate them
                    while (power_iter.MoveNext())
                    {
                        string name;
                        string action_type;
                        List<string> compendium_info = new List<string>();
                        PowerUsage usage;
                        XPathNavigator power_url_nav = null;

                        try
                        {
                            // read the basic stuff
                            name = power_iter.Current.SelectSingleNode("@name").Value;
                            usage = Util.EnumParse<PowerUsage>(power_iter.Current.SelectSingleNode("specific[@name = 'Power Usage']").Value.Replace("-", ""));
                            action_type = power_iter.Current.SelectSingleNode("specific[@name = 'Action Type']").Value.Trim();

                            // get the url for the power in the compendium
                            if (m_use_compendium)
                                power_url_nav = nav.SelectSingleNode("//RulesElementTally/RulesElement[@name = \"" + name + "\"]/@url");

                            // ...and if we did that, pull down the power description
                            if (power_url_nav != null)
                            {
                                HtmlAgilityPack.HtmlDocument scraper_doc = new HtmlAgilityPack.HtmlDocument();
                                HtmlAgilityPack.HtmlNodeNavigator scraper_result;
                                XPathNodeIterator content_iter;
                                XPathNavigator scraper_nav = null;

                                // slurp
                                try
                                {
                                    using (Stream s = m_compendium.GetEntryByUrl(power_url_nav.Value))
                                    {
                                        scraper_doc.Load(s, new UTF8Encoding());
                                        scraper_nav = scraper_doc.CreateNavigator();
                                    }
                                }
                                catch (Exception ex)
                                {
                                    // if the user clicked cancel, stop attempting compendium stuff
                                    if (ex is ApplicationException && ex.Message.ToLowerInvariant().Contains("user refused"))
                                        m_use_compendium = false;
                                    else
                                        MessageBox.Show(ex.ToString(), "Compendium Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                                }

                                // if the web request succeeded...
                                if (scraper_nav != null)
                                {
                                    // select all the detail p tags
                                    content_iter = scraper_nav.Select("//div[@id = 'detail']/p");

                                    // loop through them
                                    while (content_iter.MoveNext())
                                    {
                                        string line;

                                        // cast to HtmlNodeNavigator
                                        scraper_result = content_iter.Current as HtmlAgilityPack.HtmlNodeNavigator;

                                        // skip publishing stuff
                                        if (scraper_result == null || scraper_result.CurrentNode.InnerHtml.ToLowerInvariant().Contains("published in"))
                                            continue;

                                        // grab the line, strip images, and remove [] stuff
                                        line = scraper_result.CurrentNode.InnerHtml;
                                        line = img_remover.Replace(line, "-");
                                        line = line.Replace("[W]", "<i>W</i>");

                                        // add the line
                                        compendium_info.Add(line);
                                    }
//.........这里部分代码省略.........