Carl Eastlund wrote at 06/03/2011 10:47 PM:
To clarify this, Racket reuses the syntax of strings for regexps. A
regexp is first read as a string, then parsed into a regular
expression. So if "\d" is the same as "d" as a string, the regexp
parser never sees the backslash. We do not currently have a reader
for regexps that skips this intermediate step.
Also, regexps used to be specified using strings in Racket, and still
can be, for good reason:
(regexp (string-append "^\\d+ " (regexp-quote some-var) "$"))
#rx"^\\d+"
As a programmer, getting escaping right is hard enough as it is. You
wouldn't want to do escaping one way for string literals and a different
way for #rx -- that would be begging for hard-to-find bugs.
--
http://www.neilvandyke.org/
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