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regexp character classes not supported?

From: Limbo Peng
Subject: regexp character classes not supported?
Date: Sat, 29 Dec 2012 00:39:47 +0800
Hi,

I'm confused by the result of string-match:

(string-match "[0-9]+" "abc123zzz") ;; this works, giving result: #("abc123zzz" (3 . 6))
(string-match "\\d+" "abc123zzz") ;; this doesn't work, giving result: #f

Why isn't the "\\d+" syntax (character classes) supported?

-Limbo Peng
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