Tyler Gill
83a1dcfb64
InvariantCulture is useful when comparing / sorting human language strings in a culturely correct way. It handles things like accented letters in a way that makes sense to humans (e.g., 'a' should be sorted next to 'á', rather than after 'z'). Ordinal looks just at the raw code points of the characters. As such, it is recommended for use in cases when comparing system strings (file paths, command line parameters, config settings, etc.). Since it doesn't need to use the culture specific sorting rules, this method can often be faster. For more information, see https://stackoverflow.com/questions/492799/difference-between-invariantculture-and-ordinal-string-comparison (and other related questions)
227 lines
8.8 KiB
C#
227 lines
8.8 KiB
C#
// Copyright (C) 2016, The Duplicati Team
|
|
// http://www.duplicati.com, info@duplicati.com
|
|
//
|
|
// This library is free software; you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as
|
|
// published by the Free Software Foundation; either version 2.1 of the
|
|
// License, or (at your option) any later version.
|
|
//
|
|
// This library is distributed in the hope that it will be useful, but
|
|
// WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
// Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public
|
|
// License along with this library; if not, write to the Free Software
|
|
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
using System;
|
|
using System.IO;
|
|
using System.Linq;
|
|
using System.Collections.Generic;
|
|
using System.Globalization;
|
|
using System.Reflection;
|
|
using System.Text.RegularExpressions;
|
|
using NGettext;
|
|
|
|
namespace Duplicati.Library.Localization
|
|
{
|
|
/// <summary>
|
|
/// Class for reading embedded MO files
|
|
/// </summary>
|
|
public class MoLocalizationService : ILocalizationService
|
|
{
|
|
/// <summary>
|
|
/// The catalog containing the translations
|
|
/// </summary>
|
|
private ICatalog catalog = new Catalog();
|
|
|
|
/// <summary>
|
|
/// The environment variable used to locate MO files
|
|
/// </summary>
|
|
public const string LOCALIZATIONDIR_ENVNAME = "LOCALIZATION_FOLDER";
|
|
|
|
/// <summary>
|
|
/// Path to search for extra .mo files in
|
|
/// </summary>
|
|
public static string[] SearchPaths =
|
|
string.IsNullOrWhiteSpace(AppDomain.CurrentDomain.GetData(LOCALIZATIONDIR_ENVNAME) as string)
|
|
? new string[] { Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location) }
|
|
: (AppDomain.CurrentDomain.GetData(LOCALIZATIONDIR_ENVNAME) as string).Split(new char[] { Path.PathSeparator }, StringSplitOptions.RemoveEmptyEntries);
|
|
|
|
|
|
/// <summary>
|
|
/// Assembly to look for .mo files in
|
|
/// </summary>
|
|
public static Assembly SearchAssembly = Assembly.GetExecutingAssembly();
|
|
|
|
/// <summary>
|
|
/// Regular expression to match a locale from a filename
|
|
/// </summary>
|
|
private static readonly Regex CI_MATCHER = new Regex(@"localization-(?<culture>" + LocalizationService.CI_MATCHER + @")\.mo");
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of the <see cref="T:Duplicati.Library.Localization.PoLocalizationService"/> class.
|
|
/// </summary>
|
|
/// <param name="ci">The culture to find.</param>
|
|
public MoLocalizationService(CultureInfo ci)
|
|
{
|
|
var filenames = new string[] {
|
|
// Load the specialized version first
|
|
string.Format("localization-{0}.mo", ci.Name),
|
|
// Then try the generic language version
|
|
string.Format("localization-{0}.mo", ci.TwoLetterISOLanguageName)
|
|
};
|
|
|
|
foreach(var fn in filenames)
|
|
{
|
|
// search first in external files
|
|
foreach (var sp in SearchPaths)
|
|
{
|
|
if (!string.IsNullOrWhiteSpace(sp) && File.Exists(Path.Combine(sp, fn)))
|
|
{
|
|
using (var moFileStream = File.OpenRead(Path.Combine(sp, fn)))
|
|
catalog = new Catalog(moFileStream, ci);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// search in embedded files
|
|
if (SearchAssembly != null)
|
|
{
|
|
// Find the localization streams inside the assembly
|
|
var names =
|
|
from name in SearchAssembly.GetManifestResourceNames()
|
|
let m = CI_MATCHER.Match(name)
|
|
let c = m.Success && string.Equals(m.Value, fn, StringComparison.OrdinalIgnoreCase) ? LocalizationService.ParseCulture(m.Groups["culture"].Value) : null
|
|
where c != null
|
|
select name;
|
|
|
|
foreach (var sn in names)
|
|
using (var s = SearchAssembly.GetManifestResourceStream(sn))
|
|
if (s != null)
|
|
{
|
|
catalog = new Catalog(s, ci);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Localizes the string similar to how string.Format works
|
|
/// </summary>
|
|
/// <param name="message">The string to localize</param>
|
|
/// <returns>The localized string</returns>
|
|
public string Localize(string message)
|
|
{
|
|
return catalog.GetString(message);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Localizes the string similar to how string.Format works
|
|
/// </summary>
|
|
/// <param name="message">The string to localize</param>
|
|
/// <param name="arg0">The first argument</param>
|
|
/// <returns>The localized string</returns>
|
|
public string Localize(string message, object arg0)
|
|
{
|
|
return catalog.GetString(message, arg0);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Localizes the string similar to how string.Format works
|
|
/// </summary>
|
|
/// <param name="message">The string to localize</param>
|
|
/// <param name="arg0">The first argument</param>
|
|
/// <param name="arg1">The second argument</param>
|
|
/// <returns>The localized string</returns>
|
|
public string Localize(string message, object arg0, object arg1)
|
|
{
|
|
return catalog.GetString(message, arg0, arg1);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Localizes the string similar to how string.Format works
|
|
/// </summary>
|
|
/// <param name="message">The string to localize</param>
|
|
/// <param name="arg0">The first argument</param>
|
|
/// <param name="arg1">The second argument</param>
|
|
/// <param name="arg2">The third argument</param>
|
|
/// <returns>The localized string</returns>
|
|
public string Localize(string message, object arg0, object arg1, object arg2)
|
|
{
|
|
return catalog.GetString(message, arg0, arg1, arg2);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Localizes the string similar to how string.Format works
|
|
/// </summary>
|
|
/// <param name="message">The string to localize</param>
|
|
/// <param name="args">The arguments</param>
|
|
public string Localize(string message, params object[] args)
|
|
{
|
|
return catalog.GetString(message, args);
|
|
}
|
|
|
|
private static IEnumerable<CultureInfo> m_supportedcultures = null;
|
|
|
|
/// <summary>
|
|
/// Gets a list of all the supported cultures
|
|
/// </summary>
|
|
private static IEnumerable<CultureInfo> SupportedCultureInfos
|
|
{
|
|
get
|
|
{
|
|
if (m_supportedcultures == null)
|
|
{
|
|
var lst = new string[0].AsEnumerable();
|
|
|
|
if (SearchAssembly != null)
|
|
lst = lst.Union(SearchAssembly.GetManifestResourceNames());
|
|
foreach (var sp in SearchPaths)
|
|
if (Directory.Exists(sp))
|
|
lst = lst.Union(Directory.GetFiles(sp, "localization-*.mo"));
|
|
|
|
var allcultures =
|
|
from name in lst
|
|
let m = CI_MATCHER.Match(name)
|
|
let ci = m.Success ? LocalizationService.ParseCulture(m.Groups["culture"].Value) : null
|
|
where ci != null
|
|
select ci;
|
|
|
|
m_supportedcultures = allcultures.Concat(new[] { new CultureInfo("en") })
|
|
.Distinct();
|
|
}
|
|
return m_supportedcultures;
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Gets a list of all the supported cultures
|
|
/// </summary>
|
|
public static IEnumerable<string> SupportedCultures
|
|
{
|
|
get
|
|
{
|
|
return SupportedCultureInfos
|
|
.Select(x => x.Name).Distinct()
|
|
.OrderBy(x => x)
|
|
.ToList();
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Returns true if the culture has localization support
|
|
/// </summary>
|
|
public static Boolean isCultureSupported(CultureInfo culture)
|
|
{
|
|
foreach (var supportedCulture in SupportedCultureInfos)
|
|
{
|
|
if (supportedCulture.TwoLetterISOLanguageName == culture.TwoLetterISOLanguageName)
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
}
|
|
}
|