mirror of https://github.com/ppy/osu
48 lines
1.9 KiB
C#
48 lines
1.9 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
|
|
// See the LICENCE file in the repository root for full licence text.
|
|
|
|
#nullable enable
|
|
|
|
using System.Linq;
|
|
using System.Text;
|
|
|
|
namespace osu.Game.Beatmaps
|
|
{
|
|
/// <summary>
|
|
/// Groups utility methods used to handle beatmap metadata.
|
|
/// </summary>
|
|
public static class MetadataUtils
|
|
{
|
|
/// <summary>
|
|
/// Returns <see langword="true"/> if the character <paramref name="c"/> can be used in <see cref="BeatmapMetadata.Artist"/> and <see cref="BeatmapMetadata.Title"/> fields.
|
|
/// Characters not matched by this method can be placed in <see cref="BeatmapMetadata.ArtistUnicode"/> and <see cref="BeatmapMetadata.TitleUnicode"/>.
|
|
/// </summary>
|
|
public static bool IsRomanised(char c) => c <= 0xFF;
|
|
|
|
/// <summary>
|
|
/// Returns <see langword="true"/> if the string <paramref name="str"/> can be used in <see cref="BeatmapMetadata.Artist"/> and <see cref="BeatmapMetadata.Title"/> fields.
|
|
/// Strings not matched by this method can be placed in <see cref="BeatmapMetadata.ArtistUnicode"/> and <see cref="BeatmapMetadata.TitleUnicode"/>.
|
|
/// </summary>
|
|
public static bool IsRomanised(string? str) => string.IsNullOrEmpty(str) || str.All(IsRomanised);
|
|
|
|
/// <summary>
|
|
/// Returns a copy of <paramref name="str"/> with all characters that do not match <see cref="IsRomanised(char)"/> removed.
|
|
/// </summary>
|
|
public static string StripNonRomanisedCharacters(string? str)
|
|
{
|
|
if (string.IsNullOrEmpty(str))
|
|
return string.Empty;
|
|
|
|
var stringBuilder = new StringBuilder(str.Length);
|
|
|
|
foreach (char c in str)
|
|
{
|
|
if (IsRomanised(c))
|
|
stringBuilder.Append(c);
|
|
}
|
|
|
|
return stringBuilder.ToString().Trim();
|
|
}
|
|
}
|
|
}
|