diff options
Diffstat (limited to 'src/SMAPI')
| -rw-r--r-- | src/SMAPI/Framework/Content/AssetName.cs | 108 | ||||
| -rw-r--r-- | src/SMAPI/Utilities/AssetPathUtilities/AssetNamePartEnumerator.cs | 70 |
2 files changed, 147 insertions, 31 deletions
diff --git a/src/SMAPI/Framework/Content/AssetName.cs b/src/SMAPI/Framework/Content/AssetName.cs index 148354a1..99968299 100644 --- a/src/SMAPI/Framework/Content/AssetName.cs +++ b/src/SMAPI/Framework/Content/AssetName.cs @@ -1,6 +1,8 @@ using System; using StardewModdingAPI.Toolkit.Utilities; +using StardewModdingAPI.Utilities.AssetPathUtilities; using StardewValley; +using ToolkitPathUtilities = StardewModdingAPI.Toolkit.Utilities.PathUtilities; namespace StardewModdingAPI.Framework.Content { @@ -94,10 +96,26 @@ namespace StardewModdingAPI.Framework.Content if (string.IsNullOrWhiteSpace(assetName)) return false; - assetName = PathUtilities.NormalizeAssetName(assetName); + AssetNamePartEnumerator curParts = new(useBaseName ? this.BaseName : this.Name); + AssetNamePartEnumerator otherParts = new(assetName.AsSpan().Trim()); - string compareTo = useBaseName ? this.BaseName : this.Name; - return compareTo.Equals(assetName, StringComparison.OrdinalIgnoreCase); + while (true) + { + bool curHasMore = curParts.MoveNext(); + bool otherHasMore = otherParts.MoveNext(); + + // mismatch: lengths differ + if (otherHasMore != curHasMore) + return false; + + // match: both reached the end without a mismatch + if (!curHasMore) + return true; + + // mismatch: current segment is different + if (!curParts.Current.Equals(otherParts.Current, StringComparison.OrdinalIgnoreCase)) + return false; + } } /// <inheritdoc /> @@ -119,42 +137,70 @@ namespace StardewModdingAPI.Framework.Content if (prefix is null) return false; - string rawTrimmed = prefix.Trim(); + // get initial values + ReadOnlySpan<char> trimmedPrefix = prefix.AsSpan().Trim(); + if (trimmedPrefix.Length == 0) + return true; + ReadOnlySpan<char> pathSeparators = new(ToolkitPathUtilities.PossiblePathSeparators); // just to simplify calling other span APIs - // asset keys can't have a leading slash, but NormalizeAssetName will trim them - if (rawTrimmed.StartsWith('/') || rawTrimmed.StartsWith('\\')) + // asset keys can't have a leading slash, but AssetPathYielder will trim them + if (pathSeparators.Contains(trimmedPrefix[0])) return false; - // normalize prefix + // compare segments + AssetNamePartEnumerator curParts = new(this.Name); + AssetNamePartEnumerator prefixParts = new(trimmedPrefix); + while (true) { - string normalized = PathUtilities.NormalizeAssetName(prefix); + bool curHasMore = curParts.MoveNext(); + bool prefixHasMore = prefixParts.MoveNext(); - // keep trailing slash - if (rawTrimmed.EndsWith('/') || rawTrimmed.EndsWith('\\')) - normalized += PathUtilities.PreferredAssetSeparator; + // reached end for one side + if (prefixHasMore != curHasMore) + { + // mismatch: prefix is longer + if (prefixHasMore) + return false; - prefix = normalized; - } + // match if subfolder paths are fine (e.g. prefix 'Data/Events' with target 'Data/Events/Beach') + return allowSubfolder; + } - // compare - if (prefix.Length == 0) - return true; + // previous segments matched exactly and both reached the end + // match if prefix doesn't end with '/' (which should only match subfolders) + if (!prefixHasMore) + return !pathSeparators.Contains(trimmedPrefix[^1]); - 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) - ); - } + // compare segment + if (curParts.Current.Length == prefixParts.Current.Length) + { + // mismatch: segments aren't equivalent + if (!curParts.Current.Equals(prefixParts.Current, StringComparison.OrdinalIgnoreCase)) + return false; + } + else + { + // mismatch: prefix has more beyond this, and this segment isn't an exact match + if (prefixParts.Remainder.Length != 0) + return false; + + // mismatch: cur segment doesn't start with prefix + if (!curParts.Current.StartsWith(prefixParts.Current, StringComparison.OrdinalIgnoreCase)) + return false; + // mismatch: something like "Maps/" would need an exact match + if (pathSeparators.Contains(trimmedPrefix[^1])) + return false; + + // mismatch: partial word match not allowed, and the first or last letter of the suffix isn't a word separator + if (!allowPartialWord && char.IsLetterOrDigit(prefixParts.Current[^1]) && char.IsLetterOrDigit(curParts.Current[prefixParts.Current.Length])) + return false; + + // possible match + return allowSubfolder || (pathSeparators.Contains(trimmedPrefix[^1]) ? curParts.Remainder.IndexOfAny(ToolkitPathUtilities.PossiblePathSeparators) < 0 : curParts.Remainder.Length == 0); + } + } + } /// <inheritdoc /> public bool IsDirectlyUnderPath(string? assetFolder) @@ -162,7 +208,7 @@ namespace StardewModdingAPI.Framework.Content if (assetFolder is null) return false; - return this.StartsWith(assetFolder + "/", allowPartialWord: false, allowSubfolder: false); + return this.StartsWith(assetFolder + ToolkitPathUtilities.PreferredPathSeparator, allowPartialWord: false, allowSubfolder: false); } /// <inheritdoc /> diff --git a/src/SMAPI/Utilities/AssetPathUtilities/AssetNamePartEnumerator.cs b/src/SMAPI/Utilities/AssetPathUtilities/AssetNamePartEnumerator.cs new file mode 100644 index 00000000..11987ed6 --- /dev/null +++ b/src/SMAPI/Utilities/AssetPathUtilities/AssetNamePartEnumerator.cs @@ -0,0 +1,70 @@ +using System; +using ToolkitPathUtilities = StardewModdingAPI.Toolkit.Utilities.PathUtilities; + +namespace StardewModdingAPI.Utilities.AssetPathUtilities +{ + /// <summary>Handles enumerating the normalized segments in an asset name.</summary> + internal ref struct AssetNamePartEnumerator + { + /********* + ** Fields + *********/ + /// <summary>The backing field for <see cref="Remainder"/>.</summary> + private ReadOnlySpan<char> RemainderImpl; + + + /********* + ** Properties + *********/ + /// <summary>The remainder of the asset name being enumerated, ignoring segments which have already been yielded.</summary> + public ReadOnlySpan<char> Remainder => this.RemainderImpl; + + /// <summary>Get the current segment.</summary> + public ReadOnlySpan<char> Current { get; private set; } = default; + + + /********* + ** Public methods + *********/ + /// <summary>Construct an instance.</summary> + /// <param name="assetName">The asset name to enumerate.</param> + public AssetNamePartEnumerator(ReadOnlySpan<char> assetName) + { + this.RemainderImpl = AssetNamePartEnumerator.TrimLeadingPathSeparators(assetName); + } + + /// <summary>Move the enumerator to the next segment.</summary> + /// <returns>Returns true if a new value was found (accessible via <see cref="Current"/>).</returns> + public bool MoveNext() + { + if (this.RemainderImpl.Length == 0) + return false; + + int index = this.RemainderImpl.IndexOfAny(ToolkitPathUtilities.PossiblePathSeparators); + + // no more separator characters found, I'm done. + if (index < 0) + { + this.Current = this.RemainderImpl; + this.RemainderImpl = ReadOnlySpan<char>.Empty; + return true; + } + + // Yield the next separate character bit + this.Current = this.RemainderImpl[..index]; + this.RemainderImpl = AssetNamePartEnumerator.TrimLeadingPathSeparators(this.RemainderImpl[(index + 1)..]); + return true; + } + + + /********* + ** Private methods + *********/ + /// <summary>Trim path separators at the start of the given path or segment.</summary> + /// <param name="span">The path or segment to trim.</param> + private static ReadOnlySpan<char> TrimLeadingPathSeparators(ReadOnlySpan<char> span) + { + return span.TrimStart(new ReadOnlySpan<char>(ToolkitPathUtilities.PossiblePathSeparators)); + } + } +} |