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//
// GettextDomain.cs: Wrappers for the libintl library.
//
// Authors:
// Edd Dumbill (edd@usefulinc.com)
// Jonathan Pryor (jonpryor@vt.edu)
// Lluis Sanchez Gual (lluis@novell.com)
//
// (C) 2004 Edd Dumbill
// (C) 2005-2006 Jonathan Pryor
// Copyright (C) 2007 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Runtime.InteropServices;
using System.IO;
using System.Text;
namespace Mono.Addins.Localization
{
class GettextDomain
{
[DllImport("intl")]
static extern IntPtr bindtextdomain (IntPtr domainname, IntPtr dirname);
[DllImport("intl")]
static extern IntPtr bind_textdomain_codeset (IntPtr domainname, IntPtr codeset);
[DllImport("intl")]
static extern IntPtr dgettext (IntPtr domainname, IntPtr instring);
[DllImport("intl")]
static extern IntPtr dngettext (IntPtr domainname, IntPtr instring, IntPtr plural, int n);
IntPtr ipackage;
public void Init (String package, string localedir)
{
if (localedir == null) {
localedir = System.Reflection.Assembly.GetEntryAssembly ().CodeBase;
FileInfo f = new FileInfo (localedir);
string prefix = f.Directory.Parent.Parent.Parent.ToString ();
prefix = Path.Combine (Path.Combine (prefix, "share"), "locale");
}
ipackage = StringToPtr (package);
IntPtr ilocaledir = StringToPtr (localedir);
IntPtr iutf8 = StringToPtr ("UTF-8");
try {
if (bindtextdomain (ipackage, ilocaledir) == IntPtr.Zero)
throw new InvalidOperationException ("Gettext localizer: bindtextdomain failed");
if (bind_textdomain_codeset (ipackage, iutf8) == IntPtr.Zero)
throw new InvalidOperationException ("Gettext localizer: bind_textdomain_codeset failed");
}
finally {
Marshal.FreeHGlobal (ilocaledir);
Marshal.FreeHGlobal (iutf8);
}
}
~GettextDomain ()
{
Marshal.FreeHGlobal (ipackage);
}
public String GetString (String s)
{
IntPtr ints = StringToPtr (s);
try {
// gettext(3) returns the input pointer if no translation is found
IntPtr r = dgettext (ipackage, ints);
if (r != ints)
return PtrToString (r);
return s;
}
finally {
Marshal.FreeHGlobal (ints);
}
}
public String GetPluralString (String singular, String defaultPlural, int n)
{
IntPtr ints = StringToPtr (singular);
IntPtr intp = StringToPtr (defaultPlural);
try {
// gettext(3) returns the input pointer if no translation is found
IntPtr r = dngettext (ipackage, ints, intp, n);
if (r == ints)
return singular;
if (r == intp)
return defaultPlural;
return PtrToString (r);
}
finally {
Marshal.FreeHGlobal (ints);
Marshal.FreeHGlobal (intp);
}
}
static IntPtr StringToPtr (string s)
{
if (s == null)
return IntPtr.Zero;
byte[] marshal = Encoding.UTF8.GetBytes (s);
IntPtr mem = Marshal.AllocHGlobal (marshal.Length + 1);
Marshal.Copy (marshal, 0, mem, marshal.Length);
Marshal.WriteByte (mem, marshal.Length, 0);
return mem;
}
static string PtrToString (IntPtr ptr)
{
if (ptr == IntPtr.Zero)
return null;
int sz = 0;
while (Marshal.ReadByte (ptr, sz) != 0)
sz++;
byte[] bytes = new byte [sz];
Marshal.Copy (ptr, bytes, 0, sz);
return Encoding.UTF8.GetString (bytes);
}
}
}
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