C:/Documents and Settings/student/My Documents/Visual Studio 2008/projects/UtmConvert/UtmConvert/Parser.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
using System.IO;
using System.Xml;

namespace UtmConvert {
    class Parser {


        private string _fileName;
        protected string FileName {
            get { return _fileName; }
        }

        protected string _fileString;
        public string FileString {
            get { return _fileString; }
        }
        public Parser() {

        }

        public Parser(string fileName) {
            _fileName = fileName;
        }

        public void readFile(string fileName) {
            _fileName = fileName;
            if (File.Exists(fileName)) {
                StreamReader sRead = new StreamReader(fileName);
                _fileString = sRead.ReadToEnd();
                sRead.Close();
            }
        }
    }

    class XmlParser : Parser {

        string _type = "";
        string _datum = "NAD83/WGS84";
        public string Type {
            get { return _type; }
        }

        string _status = "ok";
        public string Status {
            get { return _status; }
        }

        string _locationName = "";
        public string LocationName {
            get { return _locationName; }
        }

        ConvertLatLonUtm con;
        List<Point> _points;
        public List<Point> Points {
            get { return _points; }
        }

        XmlDocument doc;

        public XmlParser() {

        }

        private bool datumMatch(Datum d) {
            return d.Name == _datum;
        }

        public void Parse() {
            doc = new XmlDocument();
            con = new ConvertLatLonUtm();
            _points = new List<Point>();

            doc.LoadXml(_fileString);
            foreach (XmlNode n in doc.ChildNodes) {
                if (n.Name == "lat_lon_point_set") {
                    _datum = n.Attributes[1].Value;
                    con.Datum = Datums.datumList.Find(datumMatch);
                    _type = n.Name;
                    storeLatLonPoints(n);
                    break;
                }
            }
        }

        private void storeLatLonPoints(XmlNode node) {
            _locationName = node.Attributes[0].Value;
            double lat = 0, lon = 0;
            foreach (XmlNode n in node) {
                if (n.Name == "ddd_dd") { //degrees decimal degrees
                    lat = ConvertDegRad.getRadians(n.Attributes[0].Value, n.Attributes[1].Value == "s");
                    lon = ConvertDegRad.getRadians(n.Attributes[2].Value, n.Attributes[3].Value == "w");
                } else if (n.Name == "ddd_mm_mm") {
                    string s = n.Attributes[0].Value;
                    string f1 = s.Substring(0, s.IndexOf(" "));
                    string f2 = s.Substring(s.IndexOf(" ") + 1, (s.Length - s.IndexOf(" ")) - 1);
                    s = n.Attributes[2].Value;
                    string f3 = s.Substring(0, s.IndexOf(" "));
                    string f4 = s.Substring(s.IndexOf(" ") + 1, (s.Length - s.IndexOf(" ") - 1));
                    lat = ConvertDegRad.getRadians(f1, f2, n.Attributes[1].Value == "s");
                    lon = ConvertDegRad.getRadians(f3, f4, n.Attributes[3].Value == "w");
                } else if (n.Name == "ddd_mm_ss_ss") {
                    string s = n.Attributes[0].Value;
                    string f1 = s.Substring(0, s.IndexOf(" "));
                    string f2 = s.Substring(s.IndexOf(" ") + 1, (s.IndexOf(" ", s.IndexOf(" ")) - s.IndexOf(" ") + 1));
                    string f3 = s.Substring(s.IndexOf(" ", s.IndexOf(" ") + 1) + 1
                        , s.Length - s.IndexOf(" ", s.IndexOf(" ") + 1) - 1);
                    s = n.Attributes[2].Value;
                    string f4 = s.Substring(0, s.IndexOf(" "));
                    string f5 = s.Substring(s.IndexOf(" ") + 1, (s.IndexOf(" ", s.IndexOf(" ")) - s.IndexOf(" ") + 1));
                    string f6 = s.Substring(s.IndexOf(" ", s.IndexOf(" ") + 1) + 1
                        , s.Length - s.IndexOf(" ", s.IndexOf(" ") + 1) - 1);
                    lat = ConvertDegRad.getRadians(f1, f2, f3, n.Attributes[1].Value == "s");
                    lon = ConvertDegRad.getRadians(f4, f5, f6, n.Attributes[3].Value == "w");
                }
                if (ConvertDegRad.Status == "ok") {
                    if (n.Name == "ddd_dd" || n.Name == "ddd_mm_mm" || n.Name == "ddd_mm_ss_ss") {
                        con.convertLatLonToUtm(lat, lon);
                        _points.Add(new Point(con.x, con.y));
                    }
                } else {
                    _status = "Invalid input, malformed xml data";
                }
            }

        }
    }
}

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