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Use IndexOf in WebUtility.HtmlDecode #70700

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merged 1 commit into from
Jun 14, 2022
Merged

Use IndexOf in WebUtility.HtmlDecode #70700

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19 changes: 2 additions & 17 deletions src/libraries/System.Private.CoreLib/src/System/Net/WebUtility.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -185,7 +185,7 @@ private static void HtmlEncode(ReadOnlySpan<char> input, ref ValueStringBuilder

ReadOnlySpan<char> valueSpan = value.AsSpan();

int index = IndexOfHtmlDecodingChars(valueSpan);
int index = valueSpan.IndexOf('&');
if (index < 0)
{
return value;
Expand Down Expand Up @@ -215,7 +215,7 @@ public static void HtmlDecode(string? value, TextWriter output)

ReadOnlySpan<char> valueSpan = value.AsSpan();

int index = IndexOfHtmlDecodingChars(valueSpan);
int index = valueSpan.IndexOf('&');
if (index == -1)
{
output.Write(value);
Expand Down Expand Up @@ -701,21 +701,6 @@ private static bool ValidateUrlEncodingParameters(byte[]? bytes, int offset, int
return true;
}

private static int IndexOfHtmlDecodingChars(ReadOnlySpan<char> input)
{
// this string requires html decoding if it contains '&' or a surrogate character
for (int i = 0; i < input.Length; i++)
{
char c = input[i];
if (c == '&' || char.IsSurrogate(c))
{
return i;
}
}

return -1;
}

#endregion

// Internal struct to facilitate URL decoding -- keeps char buffer and byte buffer, allows appending of either chars or bytes
Expand Down