Special characters

Scripts > Token definitions > Regular expressions > Special characters

The visual representation of other nongraphic characters is possible by escape sequences.

The rules for the use of hexadecimal numbers are modified a little in contrast to the use in general character strings. Only two hexadecimal numbers are interpreted as a characters if they aren't parenthesized.

\xdd                A hexadecimal escape sequence - matches the single character whose code point is 0xdd

\x{dddd}        A hexadecimal escape sequence - matches the single character whose code point is 0xdddd.

\N{Name}        Matches the single character which has the symbolic name name. For example \N{newline} matches the single character \n.                

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