wvdotnet/wvini.cs

   1 using System;
   2 using System.IO;
   3 using System.Collections.Generic;
   4
   5 namespace Wv
   6 {
   7     /// Well, it's not exactly UniConf, but...
   8     public class WvIni
   9     {
  10         string filename;
  11         Dictionary<string,IDictionary<string,string>> sections
  12             = new Dictionary<string,IDictionary<string,string>>
  13                     (StringComparer.OrdinalIgnoreCase);
  14
  15         public WvIni(string filename)
  16         {
  17             this.filename = filename;
  18
  19             StreamReader r;
  20             try
  21             {
  22                 r = File.OpenText(filename);
  23             }
  24             catch (IOException)
  25             {
  26                 return; // I guess there's no file!
  27             }
  28
  29             using (r)
  30             {
  31                 string section = "";
  32                 string s;
  33                 while ((s = r.ReadLine()) != null)
  34                 {
  35                     s = s.Trim();
  36                     if (s.Length == 0) continue; // blank line
  37                     if (s[0] == '#') continue; // comment
  38                     if (s[0] == '[' && s[s.Length-1]==']') // section
  39                     {
  40                         section = s.Substring(1, s.Length-2);
  41                     }
  42                     else if (s.IndexOf('=') >= 0)
  43                     {
  44                         string[] a = s.Split(new char[] {'='}, 2);
  45                         this[section][a[0].Trim()] = a[1].Trim();
  46                     }
  47                     else
  48                         continue; // whatever
  49                 }
  50             }
  51         }
  52
  53         public IDictionary<string,string> this[string sectname]
  54         {
  55             get
  56             {
  57                 if (!sections.ContainsKey(sectname))
  58                     sections.Add(sectname, new Dictionary<string,string>
  59                                      (StringComparer.OrdinalIgnoreCase));
  60                 return sections[sectname];
  61             }
  62         }
  63
  64         public string get(string section, string key, string defval)
  65         {
  66             string v;
  67             if (!this[section].TryGetValue(key, out v))
  68                 return defval;
  69             return v;
  70         }
  71
  72         public string get(string section, string key)
  73         {
  74             return get(section, key, null);
  75         }
  76
  77         public void set(string section, string key, string val)
  78         {
  79             this[section][key] = val;
  80         }
  81
  82         public void save(string filename)
  83         {
  84             using (StreamWriter w = File.CreateText(filename))
  85             {
  86                 foreach (string section in sections.Keys)
  87                 {
  88                     w.Write(wv.fmt("\n[{0}]\n", section));
  89                     foreach (string ent in sections[section].Keys)
  90                         w.Write(wv.fmt("{0} = {1}\n",
  91                                        ent, sections[section][ent]));
  92                 }
  93             }
  94         }
  95
  96         public void save()
  97         {
  98             save(filename);
  99         }
 100     }
 101 }