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Review usage of string.Substring (part 1)

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Reduced allocations by replacing string.Substring with ReadOnlySpan<char>.Slice
This commit is contained in:
Bond_009
2020-07-22 13:34:51 +02:00
parent 0750357916
commit febb6bced6
25 changed files with 124 additions and 99 deletions
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16
MediaBrowser.Controller/Entities/BaseItem.cs
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@@ -675,11 +675,11 @@ namespace MediaBrowser.Controller.Entities
return System.IO.Path.Combine(basePath, "channels", ChannelId.ToString("N", CultureInfo.InvariantCulture), Id.ToString("N", CultureInfo.InvariantCulture));
}
var idString = Id.ToString("N", CultureInfo.InvariantCulture);
ReadOnlySpan<char> idString = Id.ToString("N", CultureInfo.InvariantCulture);
basePath = System.IO.Path.Combine(basePath, "library");
return System.IO.Path.Combine(basePath, idString.Substring(0, 2), idString);
return System.IO.Path.Join(basePath, idString.Slice(0, 2), idString);
}
/// <summary>
@@ -702,26 +702,27 @@ namespace MediaBrowser.Controller.Entities
foreach (var removeChar in ConfigurationManager.Configuration.SortRemoveCharacters)
{
sortable = sortable.Replace(removeChar, string.Empty);
sortable = sortable.Replace(removeChar, string.Empty, StringComparison.Ordinal);
}
foreach (var replaceChar in ConfigurationManager.Configuration.SortReplaceCharacters)
{
sortable = sortable.Replace(replaceChar, " ");
sortable = sortable.Replace(replaceChar, " ", StringComparison.Ordinal);
}
foreach (var search in ConfigurationManager.Configuration.SortRemoveWords)
{
// Remove from beginning if a space follows
if (sortable.StartsWith(search + " "))
if (sortable.StartsWith(search + " ", StringComparison.Ordinal))
{
sortable = sortable.Remove(0, search.Length + 1);
}
// Remove from middle if surrounded by spaces
sortable = sortable.Replace(" " + search + " ", " ");
sortable = sortable.Replace(" " + search + " ", " ", StringComparison.Ordinal);
// Remove from end if followed by a space
if (sortable.EndsWith(" " + search))
if (sortable.EndsWith(" " + search, StringComparison.Ordinal))
{
sortable = sortable.Remove(sortable.Length - (search.Length + 1));
}
@@ -751,6 +752,7 @@ namespace MediaBrowser.Controller.Entities
builder.Append(chunkBuilder);
}
// logger.LogDebug("ModifySortChunks Start: {0} End: {1}", name, builder.ToString());
return builder.ToString().RemoveDiacritics();
}