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Without looping over the entire range of Unicode characters, how can I get a list of characters that have a given property? In particular I want a list of all characters that are digits (i.e. those that match /\d/). I have looked at Unicode::UCD, and it is useful for determining the properties of a given character, but there doesn't seem to be a way to get a list characters that have a property out of it.
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Inserting Unicode characters To insert a Unicode character, type the character code, press ALT, and then press X. For example, to type a dollar symbol ($), type 0024, press ALT, and then press X.
The standard, which is maintained by the Unicode Consortium, defines as of the current version (15.0) 149,186 characters covering 161 modern and historic scripts, as well as symbols, emoji (including in colors), and non-visual control and formatting codes.
The ord function in python accepts a single character as an argument and returns an integer value representing the Unicode equivalent of that character.
The maximum possible number of code points Unicode can support is 1,114,112 through seventeen 16-bit planes. Each plane can support 65,536 different code points. Among the more than one million code points that Unicode can support, version 4.0 curently defines 96,382 characters at plane 0, 1, 2, and 14.
The list of Unicode characters for each class is generated from the Unicode spec when you compile Perl, and is typically stored in /usr/lib/perl-YOURPERLVERSION/unicore/lib/gc_sc/
For example, the list of Unicode character ranges that match IsDigit (a.k.a. \d) is stored in the file /usr/lib/perl-YOURPERLVERSION/unicore/lib/gc_sc/Digit.pl
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