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Diffstat (limited to 'src/SMAPI/Framework/Content/AssetName.cs')
| -rw-r--r-- | src/SMAPI/Framework/Content/AssetName.cs | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/src/SMAPI/Framework/Content/AssetName.cs b/src/SMAPI/Framework/Content/AssetName.cs new file mode 100644 index 00000000..992647f8 --- /dev/null +++ b/src/SMAPI/Framework/Content/AssetName.cs @@ -0,0 +1,173 @@ +using System; +using StardewModdingAPI.Toolkit.Utilities; +using StardewValley; + +namespace StardewModdingAPI.Framework.Content +{ + /// <summary>An asset name that can be loaded through the content pipeline.</summary> + internal class AssetName : IAssetName + { + /********* + ** Fields + *********/ + /// <summary>A lowercase version of <see cref="Name"/> used for consistent hash codes and equality checks.</summary> + private readonly string ComparableName; + + + /********* + ** Accessors + *********/ + /// <inheritdoc /> + public string Name { get; } + + /// <inheritdoc /> + public string BaseName { get; } + + /// <inheritdoc /> + public string LocaleCode { get; } + + /// <inheritdoc /> + public LocalizedContentManager.LanguageCode? LanguageCode { get; } + + + /********* + ** Public methods + *********/ + /// <summary>Construct an instance.</summary> + /// <param name="baseName">The base asset name without the locale code.</param> + /// <param name="localeCode">The locale code specified in the <see cref="Name"/>, if it's a valid code recognized by the game content.</param> + /// <param name="languageCode">The language code matching the <see cref="LocaleCode"/>, if applicable.</param> + public AssetName(string baseName, string localeCode, LocalizedContentManager.LanguageCode? languageCode) + { + // validate + if (string.IsNullOrWhiteSpace(baseName)) + throw new ArgumentException("The asset name can't be null or empty.", nameof(baseName)); + if (string.IsNullOrWhiteSpace(localeCode)) + localeCode = null; + + // set base values + this.BaseName = PathUtilities.NormalizeAssetName(baseName); + this.LocaleCode = localeCode; + this.LanguageCode = languageCode; + + // set derived values + this.Name = localeCode != null + ? string.Concat(this.BaseName, '.', this.LocaleCode) + : this.BaseName; + this.ComparableName = this.Name.ToLowerInvariant(); + } + + /// <summary>Parse a raw asset name into an instance.</summary> + /// <param name="rawName">The raw asset name to parse.</param> + /// <param name="parseLocale">Get the language code for a given locale, if it's valid.</param> + /// <exception cref="ArgumentException">The <paramref name="rawName"/> is null or empty.</exception> + public static AssetName Parse(string rawName, Func<string, LocalizedContentManager.LanguageCode?> parseLocale) + { + if (string.IsNullOrWhiteSpace(rawName)) + throw new ArgumentException("The asset name can't be null or empty.", nameof(rawName)); + + string baseName = rawName; + string localeCode = null; + LocalizedContentManager.LanguageCode? languageCode = null; + + int lastPeriodIndex = rawName.LastIndexOf('.'); + if (lastPeriodIndex > 0 && rawName.Length > lastPeriodIndex + 1) + { + string possibleLocaleCode = rawName[(lastPeriodIndex + 1)..]; + LocalizedContentManager.LanguageCode? possibleLanguageCode = parseLocale(possibleLocaleCode); + + if (possibleLanguageCode != null) + { + baseName = rawName[..lastPeriodIndex]; + localeCode = possibleLocaleCode; + languageCode = possibleLanguageCode; + } + } + + return new AssetName(baseName, localeCode, languageCode); + } + + /// <inheritdoc /> + public bool IsEquivalentTo(string assetName, bool useBaseName = false) + { + // empty asset key is never equivalent + if (string.IsNullOrWhiteSpace(assetName)) + return false; + + assetName = PathUtilities.NormalizeAssetName(assetName); + + string compareTo = useBaseName ? this.BaseName : this.Name; + return compareTo.Equals(assetName, StringComparison.OrdinalIgnoreCase); + } + + /// <inheritdoc /> + public bool StartsWith(string prefix, bool allowPartialWord = true, bool allowSubfolder = true) + { + // asset keys never start with null + if (prefix is null) + return false; + + // asset keys can't have a leading slash, but NormalizeAssetName will trim them + { + string trimmed = prefix.TrimStart(); + if (trimmed.StartsWith('/') || trimmed.StartsWith('\\')) + return false; + } + + // normalize prefix + { + string normalized = PathUtilities.NormalizeAssetName(prefix); + + string trimmed = prefix.TrimEnd(); + if (trimmed.EndsWith('/') || trimmed.EndsWith('\\')) + normalized += PathUtilities.PreferredAssetSeparator; + + prefix = normalized; + } + + // compare + return + this.Name.StartsWith(prefix, StringComparison.OrdinalIgnoreCase) + && ( + allowPartialWord + || this.Name.Length == prefix.Length + || !char.IsLetterOrDigit(prefix[^1]) // last character in suffix is word separator + || !char.IsLetterOrDigit(this.Name[prefix.Length]) // or first character after it is + ) + && ( + allowSubfolder + || this.Name.Length == prefix.Length + || !this.Name[prefix.Length..].Contains(PathUtilities.PreferredAssetSeparator) + ); + } + + + public bool IsDirectlyUnderPath(string assetFolder) + { + return this.StartsWith(assetFolder + "/", allowPartialWord: false, allowSubfolder: false); + } + + /// <inheritdoc /> + public bool Equals(IAssetName other) + { + return other switch + { + null => false, + AssetName otherImpl => this.ComparableName == otherImpl.ComparableName, + _ => StringComparer.OrdinalIgnoreCase.Equals(this.Name, other.Name) + }; + } + + /// <inheritdoc /> + public override int GetHashCode() + { + return this.ComparableName.GetHashCode(); + } + + /// <inheritdoc /> + public override string ToString() + { + return this.Name; + } + } +} |