tools/locale-builder/Entry.cs

   1 //
   2 //
   3 //
   4
   5 using System;
   6 using System.Text;
   7 using System.Collections;
   8
   9 namespace Mono.Tools.LocaleBuilder {
  10
  11         public class Entry {
  12
  13                 // maps strings to indexes
  14                 static Hashtable hash;
  15                 static ArrayList string_order;
  16                 // idx 0 is reserved to indicate null
  17                 static int curpos = 1;
  18
  19                 // serialize the strings in Hashtable.
  20                 public static string GetStrings () {
  21                         Console.WriteLine ("Total string data size: {0}", curpos);
  22                         if (curpos > UInt16.MaxValue)
  23                                 throw new Exception ("need to increase idx size in culture-info.h");
  24                         StringBuilder ret = new StringBuilder ();
  25                         // the null entry
  26                         ret.Append ("\"\\0\"\n");
  27                         foreach (string s in string_order) {
  28                                 ret.Append ("\t\"");
  29                                 ret.Append (s);
  30                                 ret.Append ("\\0\"\n");
  31                         }
  32                         return ret.ToString ();
  33                 }
  34                 static Entry () {
  35                         hash = new Hashtable ();
  36                         string_order = new ArrayList ();
  37                 }
  38                 static int AddString (string s, int size) {
  39                         object o = hash [s];
  40                         if (o == null) {
  41                                 int ret;
  42                                 string_order.Add (s);
  43                                 ret = curpos;
  44                                 hash [s] = curpos;
  45                                 curpos += size + 1; // null terminator
  46                                 return ret;
  47                         } else {
  48                                 return (int)o;
  49                         }
  50                 }
  51
  52                 internal static String EncodeStringIdx (string str)
  53                 {
  54                         if (str == null)
  55                                 return "0";
  56
  57                         StringBuilder ret = new StringBuilder ();
  58                         byte [] ba = new UTF8Encoding ().GetBytes (str);
  59                         bool in_hex = false;
  60                         foreach (byte b in ba) {
  61                                 if (b > 127 || (in_hex && is_hex (b))) {
  62                                         ret.AppendFormat ("\\x{0:x}", b);
  63                                         in_hex = true;
  64                                 } else {
  65                                         if (b == '\\')
  66                                                 ret.Append ('\\');
  67                                         ret.Append ((char) b);
  68                                         in_hex = false;
  69                                 }
  70                         }
  71                         int res = AddString (ret.ToString (), ba.Length);
  72                         return res.ToString ();
  73                 }
  74
  75                 private static bool is_hex (int e)
  76                 {
  77                         return (e >= '0' && e <= '9') || (e >= 'A' && e <= 'F') || (e >= 'a' && e <= 'f');
  78                 }
  79         }
  80 }
  81
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  84