Hello Monks

I'm looking at the Marpa docs, and the example for a "hash comment char" definition is:

<hash comment char> ~ [^\x{A}\x{B}\x{C}\x{D}\x{2028}\x{2029}]

[download]

What character classes are \x{A} \x{B} \x{C} \x{D}, and more importantly, where can I look them up? I'm fairly certain that \x{2028} is a newline and \x{2029} is a paragraph separator (not sure how that's different than a new line...) class.

Thanks!

Edit: You all rock! Thanks for the help!

In reply to [Solved] What are these hex character classes? by three18ti

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