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public static void CheckOpenCloseDelimiter(char pc, char c, bool enableWithinWord, out bool canOpen, out bool canClose) |
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{ |
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pc.CheckUnicodeCategory(out bool prevIsWhiteSpace, out bool prevIsPunctuation); |
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c.CheckUnicodeCategory(out bool nextIsWhiteSpace, out bool nextIsPunctuation); |
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var prevIsExcepted = prevIsPunctuation && IsPunctuationException(pc); |
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var nextIsExcepted = nextIsPunctuation && IsPunctuationException(c); |
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// A left-flanking delimiter run is a delimiter run that is |
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// (1) not followed by Unicode whitespace, and either |
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// (2a) not followed by a punctuation character or |
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// (2b) followed by a punctuation character and preceded by Unicode whitespace or a punctuation character. |
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// For purposes of this definition, the beginning and the end of the line count as Unicode whitespace. |
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canOpen = !nextIsWhiteSpace && |
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((!nextIsPunctuation || nextIsExcepted) || prevIsWhiteSpace || prevIsPunctuation); |
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// A right-flanking delimiter run is a delimiter run that is |
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// (1) not preceded by Unicode whitespace, and either |
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// (2a) not preceded by a punctuation character, or |
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// (2b) preceded by a punctuation character and followed by Unicode whitespace or a punctuation character. |
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// For purposes of this definition, the beginning and the end of the line count as Unicode whitespace. |
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canClose = !prevIsWhiteSpace && |
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((!prevIsPunctuation || prevIsExcepted) || nextIsWhiteSpace || nextIsPunctuation); |
The specs says "A character is a Unicode code point." However, the char type is just a UTF-16 code unit, which does not cover supplementary characters (whose code points are U+100000 or greater).
https://spec.commonmark.org/0.31.2/#character
