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56 lines
1.8 KiB
C#
56 lines
1.8 KiB
C#
using System;
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using System.Globalization;
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using System.Linq;
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using System.Text;
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using System.Text.RegularExpressions;
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using Emby.Server.Implementations.Localization;
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namespace Emby.Server.Core.Localization
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{
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public class TextLocalizer : ITextLocalizer
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{
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public string RemoveDiacritics(string text)
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{
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if (text == null)
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{
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throw new ArgumentNullException("text");
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}
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var chars = Normalize(text, NormalizationForm.FormD)
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.Where(ch => CharUnicodeInfo.GetUnicodeCategory(ch) != UnicodeCategory.NonSpacingMark);
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return Normalize(String.Concat(chars), NormalizationForm.FormC);
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}
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private static string Normalize(string text, NormalizationForm form, bool stripStringOnFailure = true)
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{
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if (stripStringOnFailure)
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{
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try
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{
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return text.Normalize(form);
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}
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catch (ArgumentException)
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{
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// will throw if input contains invalid unicode chars
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// https://mnaoumov.wordpress.com/2014/06/14/stripping-invalid-characters-from-utf-16-strings/
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text = StripInvalidUnicodeCharacters(text);
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return Normalize(text, form, false);
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}
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}
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return text.Normalize(form);
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}
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private static string StripInvalidUnicodeCharacters(string str)
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{
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var invalidCharactersRegex = new Regex("([\ud800-\udbff](?![\udc00-\udfff]))|((?<![\ud800-\udbff])[\udc00-\udfff])");
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return invalidCharactersRegex.Replace(str, "");
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}
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public string NormalizeFormKD(string text)
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{
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return text.Normalize(NormalizationForm.FormKD);
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}
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}
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}
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