92 lines
2.7 KiB
C#
92 lines
2.7 KiB
C#
using System.Collections.Generic;
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using System.Globalization;
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using System.IO;
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using System.Reflection;
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using System.Text.RegularExpressions;
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using System.Linq;
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using System;
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namespace NLangDetect.Core.Utils
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{
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public static class Messages
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{
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private static readonly Dictionary<string, string> _messages;
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static Messages()
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{
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_messages = LoadMessages();
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}
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public static string getString(string key)
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{
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string value;
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return
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_messages.TryGetValue(key, out value)
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? value
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: string.Format("!{0}!", key);
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}
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private static Dictionary<string, string> LoadMessages()
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{
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var manifestName = typeof(Messages).Assembly.GetManifestResourceNames().FirstOrDefault(i => i.IndexOf("messages.properties", StringComparison.Ordinal) != -1) ;
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Stream messagesStream =
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typeof(Messages).Assembly
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.GetManifestResourceStream(manifestName);
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if (messagesStream == null)
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{
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throw new InternalException(string.Format("Couldn't get embedded resource named '{0}'.", manifestName));
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}
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using (messagesStream)
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using (var sr = new StreamReader(messagesStream))
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{
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var messages = new Dictionary<string, string>();
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while (!sr.EndOfStream)
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{
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string line = sr.ReadLine();
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if (string.IsNullOrEmpty(line))
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{
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continue;
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}
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string[] keyValue = line.Split('=');
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if (keyValue.Length != 2)
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{
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throw new InternalException(string.Format("Invalid format of the 'Messages.properties' resource. Offending line: '{0}'.", line.Trim()));
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}
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string key = keyValue[0];
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string value = UnescapeUnicodeString(keyValue[1]);
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messages.Add(key, value);
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}
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return messages;
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}
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}
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/// <remarks>
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/// Taken from: http://stackoverflow.com/questions/1615559/converting-unicode-strings-to-escaped-ascii-string/1615860#1615860
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/// </remarks>
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private static string UnescapeUnicodeString(string s)
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{
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if (s == null)
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{
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return null;
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}
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return
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Regex.Replace(
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s,
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@"\\u(?<Value>[a-zA-Z0-9]{4})",
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match => ((char)int.Parse(match.Groups["Value"].Value, NumberStyles.HexNumber)).ToString());
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}
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}
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}
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