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[Hexadecimal numeric character |
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references](@) consist of `&#` + |
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either `X` or `x` + a string of 1-6 hexadecimal digits + `;`. |
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They too are parsed as the corresponding Unicode character (this |
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time specified with a hexadecimal numeral instead of decimal). |
The hyphen in paragraph about Hexadecimal numeric character references, which different from other places. So I suggest to change a string of 1-6 hexadecimal digits into a string of 1--6 hexadecimal digits. Here are examples of other locations:
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[Decimal numeric character |
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references](@) |
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consist of `&#` + a string of 1--7 arabic digits + `;`. A |
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numeric character reference is parsed as the corresponding |
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Unicode character. Invalid Unicode code points will be replaced by |
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the REPLACEMENT CHARACTER (`U+FFFD`). For security reasons, |
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the code point `U+0000` will also be replaced by `U+FFFD`. |
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An [ATX heading](@) |
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consists of a string of characters, parsed as inline content, between an |
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opening sequence of 1--6 unescaped `#` characters and an optional |
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closing sequence of any number of unescaped `#` characters. |
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The opening sequence of `#` characters must be followed by spaces or tabs, or |
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by the end of line. The optional closing sequence of `#`s must be preceded by |
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spaces or tabs and may be followed by spaces or tabs only. The opening |
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`#` character may be preceded by up to three spaces of indentation. The raw |
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contents of the heading are stripped of leading and trailing space or tabs |
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before being parsed as inline content. The heading level is equal to the number |
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of `#` characters in the opening sequence. |
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An HTML block of types 1--6 can interrupt a paragraph, and need not be |
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preceded by a blank line. |
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An [ordered list marker](@) |
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is a sequence of 1--9 arabic digits (`0-9`), followed by either a |
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`.` character or a `)` character. (The reason for the length |
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limit is that with 10 digits we start seeing integer overflows |
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in some browsers.) |