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Adjust span comparisons for clarity and add some test cases.

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This commit is contained in:
RoosterDragon
2021-11-13 16:43:12 +00:00
committed by abcdefg30
parent 5416910249
commit 1d23c23d06
2 changed files with 37 additions and 20 deletions
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28
OpenRA.Game/MiniYaml.cs
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@@ -168,9 +168,9 @@ namespace OpenRA
var spaces = 0;
var textStart = false;
ReadOnlySpan<char> key = null;
ReadOnlySpan<char> value = null;
ReadOnlySpan<char> comment = null;
ReadOnlySpan<char> key = default;
ReadOnlySpan<char> value = default;
ReadOnlySpan<char> comment = default;
var location = new MiniYamlNode.SourceLocation { Filename = filename, Line = lineNo };
if (line.Length > 0)
@@ -254,25 +254,29 @@ namespace OpenRA
if (commentStart >= 0 && !discardCommentsAndWhitespace)
comment = line.Slice(commentStart);
// Remove leading/trailing whitespace guards
if (value.Length > 1)
{
// Remove leading/trailing whitespace guards
var trimLeading = value[0] == '\\' && (value[1] == ' ' || value[1] == '\t') ? 1 : 0;
var trimTrailing = value[value.Length - 1] == '\\' && (value[value.Length - 2] == ' ' || value[value.Length - 2] == '\t') ? 1 : 0;
if (trimLeading + trimTrailing > 0)
value = value.Slice(trimLeading, value.Length - trimLeading - trimTrailing);
}
// Remove escape characters from #
if (value.Contains("\\#", StringComparison.Ordinal))
value = value.ToString().Replace("\\#", "#");
// Remove escape characters from #
if (value.Contains("\\#", StringComparison.Ordinal))
value = value.ToString().Replace("\\#", "#");
}
}
if (key != null || !discardCommentsAndWhitespace)
if (!key.IsEmpty || !discardCommentsAndWhitespace)
{
var keyString = key == null ? null : key.ToString();
var valueString = value == null ? null : value.ToString();
var commentString = comment == null ? null : comment.ToString();
var keyString = key.IsEmpty ? null : key.ToString();
var valueString = value.IsEmpty ? null : value.ToString();
// Note: We need to support empty comments here to ensure that empty comments
// (i.e. a lone # at the end of a line) can be correctly re-serialized
var commentString = comment == default ? null : comment.ToString();
keyString = keyString == null ? null : stringPool.GetOrAdd(keyString, keyString);
valueString = valueString == null ? null : stringPool.GetOrAdd(valueString, valueString);
commentString = commentString == null ? null : stringPool.GetOrAdd(commentString, commentString);