Merge pull request #463 from strawd/concurrent-requests
[mono.git] / tools / locale-builder / Entry.cs
1 //
2 // Entry.cs
3 //
4 // Authors:
5 //      Marek Safar  <marek.safar@gmail.com>
6 //
7 // Copyright (C) 2012 Xamarin Inc (http://www.xamarin.com)
8 //
9 // Permission is hereby granted, free of charge, to any person obtaining
10 // a copy of this software and associated documentation files (the
11 // "Software"), to deal in the Software without restriction, including
12 // without limitation the rights to use, copy, modify, merge, publish,
13 // distribute, sublicense, and/or sell copies of the Software, and to
14 // permit persons to whom the Software is furnished to do so, subject to
15 // the following conditions:
16 //
17 // The above copyright notice and this permission notice shall be
18 // included in all copies or substantial portions of the Software.
19 //
20 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 //
28
29 using System;
30 using System.Text;
31 using System.Collections.Generic;
32
33 namespace Mono.Tools.LocaleBuilder
34 {
35         public class Entry
36         {
37                 // maps strings to indexes
38                 static Dictionary<string, int> hash = new Dictionary<string, int> ();
39                 static List<string> string_order = new List<string> ();
40                 // idx 0 is reserved to indicate null
41                 static int curpos = 1;
42
43                 // serialize the strings in Hashtable.
44                 public static string GetStrings ()
45                 {
46                         Console.WriteLine ("Total string data size: {0}", curpos);
47                         if (curpos > UInt16.MaxValue)
48                                 throw new Exception ("need to increase idx size in culture-info.h");
49                         StringBuilder ret = new StringBuilder ();
50                         // the null entry
51                         ret.Append ("\"\\0\"\n");
52                         foreach (string s in string_order) {
53                                 ret.Append ("\t\"");
54                                 ret.Append (s);
55                                 ret.Append ("\\0\"\n");
56                         }
57                         return ret.ToString ();
58                 }
59
60                 static int AddString (string s, int size)
61                 {
62                         if (!hash.ContainsKey (s)) {
63                                 int ret;
64                                 string_order.Add (s);
65                                 ret = curpos;
66                                 hash.Add (s, curpos);
67                                 curpos += size + 1; // null terminator
68                                 return ret;
69                         }
70
71                         return hash[s];
72                 }
73
74                 protected static StringBuilder AppendNames (StringBuilder builder, IList<string> names)
75                 {
76                         builder.Append ('{');
77                         for (int i = 0; i < names.Count; i++) {
78                                 if (i > 0)
79                                         builder.Append (", ");
80
81                                 builder.Append (EncodeStringIdx (names[i]));
82                         }
83                         builder.Append ("}");
84
85                         return builder;
86                 }
87
88                 internal static String EncodeStringIdx (string str)
89                 {
90                         if (str == null)
91                                 return "0";
92
93                         StringBuilder ret = new StringBuilder ();
94                         byte[] ba = new UTF8Encoding ().GetBytes (str);
95                         bool in_hex = false;
96                         foreach (byte b in ba) {
97                                 if (b > 127 || (in_hex && is_hex (b))) {
98                                         ret.AppendFormat ("\\x{0:x}", b);
99                                         in_hex = true;
100                                 } else {
101                                         if (b == '\\')
102                                                 ret.Append ('\\');
103                                         ret.Append ((char) b);
104                                         in_hex = false;
105                                 }
106                         }
107                         int res = AddString (ret.ToString (), ba.Length);
108                         return res.ToString ();
109                 }
110
111                 private static bool is_hex (int e)
112                 {
113                         return (e >= '0' && e <= '9') || (e >= 'A' && e <= 'F') || (e >= 'a' && e <= 'f');
114                 }
115         }
116 }