like php

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using System.Net;
using System.Text.RegularExpressions;

namespace FusionChartTest
{
    public partial class SiteMaster : System.Web.UI.MasterPage
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            string current_file = Path.GetFileName(Request.Path);
            System.Diagnostics.Debug.WriteLine("filename: " + current_file);



            string[] lines = System.IO.File.ReadAllLines(Server.MapPath("~") + @"\sitemap.ini").Where(s => s.Trim() != string.Empty).ToArray();
            int window_blank = 0;
            string nav_subject ="";
            string nav_link = "";
            string submenu_link = "";
            string show_nav_subject = "";
            string menu_link = "";
            string submenu = "";
            string submenu2 = "";
            string navi = "";

            foreach (string linetext in lines)
                {    //Kommentare und Leerzeilen auslassen
                    string line = linetext.Substring(0,-1);
                    if(line.Substring(0,1) != "#" && line.Length>2) {
                        //echo $line."
";
                        string line_cleaned = line.Replace("^-|^--|^---","");
                        //workaround for ereg_replace not replacing ^--- properly
                       
                       
                        //string line_cleaned = line_cleaned.Replace("^-|^--|^---","");
                       
                       
                        if (Regex.Match(line_cleaned, "^|popup$")) {
                            window_blank = 1;
                            line_cleaned = line_cleaned.Replace("|popup$","");
                        }
                        else window_blank = 0;

                        //Seitentitel
                        if (line.IndexOf('|') == 0)
                            nav_subject = line_cleaned.Substring(0, line_cleaned.IndexOf('|'));
                        else
                            nav_subject = line_cleaned;

                        //Link auslesen
                        if (line.IndexOf('|') == 0)
                            nav_link = line_cleaned.Replace('|',"",line_cleaned.Substring(line_cleaned.IndexOf('|')+1));
                        else
                            nav_link = "#";

                        //bei externen Links darf PrependPath nicht gesetzt werden
                        string link_extern=(Regex.Replace("^(http|https|ftp)://",nav_link))?1:0;

                        int active = (nav_link == current_file)?1:0;
       
                        //print_r($nav_link);
       
                        // edit by Markus
                        // sobald ein Parent Eintrag gefunden wurde, den eintrag aus dem filename_ini array entfernen
                        // so wird verhindert, dass eintrage mit gleichem name wie ein Parent Eintrag auch gehighlightet wird
                        if(is_array($filename_ini) && in_array(nav_link.Trim() ,$filename_ini))
                        {
                            $key = array_search(trim($nav_link),$filename_ini);
                            $active_parent = 1;
                            unset($filename_ini[$key]);
                        } else {
                            $active_parent = 0;
                        }
                        //Markus end
       
                        //if(is_array($filename_ini))    $active_parent = (in_array(trim($nav_link),$filename_ini))?1:0;
                        //else $active_parent = 0;       

                        //Link für Submenü zusammenbauen
                        if (nav_link == "#")
                            submenu_link = "
";
                        else {
                            if (line.Substring(0,3) == "---") {
                                submenu_link = "
"+ "
\n";
                            }
                            else {
                                submenu_link = "
"+ "
\n";
                                //submenu_link = ($active?"
":"").($active_parent?" ").(active_parent?"
":"")+(active?"
":"");
                            node_active = "";
                        }
                        //2. Ebene
                        else if (line.Substring(0,2) != "--") {
                            //echo $node_active."
";

                            submenu = node_active2?submenu2:"";
                            submenu2 = "";
                            node_active2 = 0;

                            submenu += "
"+submenu_link+show_nav_subject+((nav_link == "#")?"
":"
"+(active?"
":"").($active_parent?"
":"")."
");

                            if (nav_link == current_file) node_active2=true;
                        }
                        //3. Ebene
                        else if (line.Substring(0,3) != "---"){

                            node_active3 = false;
                            if (show_submenu3 && submenu3_dump) submenu3 = submenu3_dump;
                            show_submenu3 = false;
                            submenu3_dump = "";
                            submenu2 .=  "
".
                            submenu_link+show_nav_subject+((nav_link == "#")?"
":"
"+(active?"":"").(active_parent?"":"")."");
                            if (nav_link == current_file) node_active2=true;
                            if (nav_link == current_file) {
                                node_active3=true;
                                ebene3subject = show_nav_subject;
                            }
                            last_nav_subject3 = show_nav_subject;
                        }
                        //4. Ebene
                        else {
       
                            submenu3_dump += submenu_link+show_nav_subject+((nav_link == "#")?"":"")+(active?"":"");
       
                            if (node_active3 || nav_link == current_file) show_submenu3 = true;
                            if (nav_link == current_file) {
                                node_active2=true;
                                ebene3subject = last_nav_subject3;
                            }
                        }
                        if (nav_link == current_file) {
                            node_active=true;
                            current_title = nav_subject;
                        }
                    }
                }
                navi +=  node_active?submenu:"";



        }


            public int show_level(string file){
                int ebene = 0;
                if(Regex.Matches("/^-+/",file, trf)){
                    switch((2)){
                        case 1:
                             ebene = 2;break;
                        case 2:
                             ebene = 3;break;
                        case 3:
                             ebene = 4;break;
                       
                        default:break;
                    }       
                }else{
                    ebene = 1;//suchbegriff="";
                }
                return ebene;
            }
            //vorgänger des aktiven Knotens ausgeben (rückgabe: array mit navigationslevel als index)
            public string show_parent_nodes(string sitemapFile, string current_file){
            string sitemap =sitemapFile;
           
               
               
             string[] file = System.IO.File.ReadAllLines(Server.MapPath("~") + @"\sitemap.ini").Where(s => s.Trim() != string.Empty).ToArray();  
             //string file = file(sitemap);
           
               
               
            //current_file = current_file.Replace("/","\/");
            current_file = current_file.Replace("/","/");
            int i = 0;
                foreach(string row in file){       
                    if(row.Substring(0,1) != '#' && row.Length > 2){
                        if(preg_match('/\|'.trim($current_file).'$/',trim($row))){
                            //$treffer = $row;
                            break;
                        }
                    }i++;
                }
                level = show_level(file[i]);
                counter = level;
                //$filename_ini[$level] = trim($file[$i]);
                for(d=1;d                    for(i;i>0;i--){
                        if(file[i].(0,1) != '#' && strlen(file[i]) > 2){
                            current_level = show_level(file[i]);
                            if(current_level                                filename_ini[current_level] = trim(file[i]);
                                level = current_level;
                                break 1;
                            }
                        }
                    }
                }
                filename_ini = preg_replace("/^.*\|/","",filename_ini);
                return filename_ini;
            }





        public string getIndex(string url)
        {
            int index = 0;
            int node = 0;
            int label = 1;
            string str = "";
            string[] lines = System.IO.File.ReadAllLines(Server.MapPath("~") + @"\sitemap.ini").Where(s => s.Trim() != string.Empty).ToArray();

            foreach (string linetext in lines)
            {

                string[] Content = linetext.Split('|');
                string tag = Content[0].Substring(0, 2);

                System.Diagnostics.Debug.WriteLine("tag :" + tag);

                if (tag.IndexOf('-') != 0) index++;
                /*
                {

                    if (tag.Substring(0, 1) == "-" && System.Text.RegularExpressions.Regex.IsMatch(tag.Substring(1, 1), "^[a-zA-Z'.]$")) index++;
                    node++;

                }
                  */ 
                   

                if (Content[1] == url)
                {

                    //string tag = Content[0].Substring(0, 2);

                    //for the first lavel
                    if (System.Text.RegularExpressions.Regex.IsMatch(tag.Substring(0, 1), "^[a-zA-Z'.]$"))
                    {
                        str = node.ToString() + "_" + label.ToString() + "_" + index.ToString();
                    }

                    //for the 2nd lavel
                    else if (tag.Substring(0, 1) == "-" && System.Text.RegularExpressions.Regex.IsMatch(tag.Substring(1, 1), "^[a-zA-Z'.]$"))
                    {
                        //node+label then position
                        label = 2;
                        str = node.ToString() + "_" + label.ToString() + "_" + index.ToString();
                    }

                    //for the 3rd lavel
                    else if (tag == "--")
                    {
                        label = 3;
                        str = node.ToString() + "_" + label.ToString() + "_" + index.ToString();
                    }
                   

                    //str = node.ToString() + index.ToString();
                    return str;
                }
                /*
                else
                {
                    index++;
                }
                */



                }

            //System.Diagnostics.Debug.WriteLine("node and lebel :" +str);
            //Array.IndexOf(Content[1], url);
            return str;

        }
    }
}

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