Comments (3)
Example:
This line is left-to-right because it starts with "T".
שלום! This line is right-to-left because it starts with "ש".
This line is left-to-right even though it contains Hebrew characters: שלום, because it starts with "T".
EDIT: Seems like GitHub messed this up too, it's only correct in the preview 😄
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The bidi level of each line already indicates the strong direction. FlowDirection.DetectFromContent should be simple.
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var text = "שלום, John Dough";
var codepointEnumerator = new CodepointEnumerator(text);
var codepoint = Codepoint.ReplacementCodepoint;
while (codepointEnumerator.MoveNext(out codepoint))
{
var flowDirection = GetFlowDirectionDirection(codepoint.BiDiClass);
if (flowDirection != null)
{
break;
}
}
return;
static FlowDirection? GetFlowDirectionDirection(BidiClass bidiClass)
{
switch (bidiClass)
{
case BidiClass.ArabicLetter:
case BidiClass.ArabicNumber:
case BidiClass.RightToLeft:
{
return FlowDirection.RightToLeft;
}
case BidiClass.LeftToRight:
{
return FlowDirection.LeftToRight;
}
}
return null;
}
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