Re: regular expression

[Emanuel Berg]

Teemu Likonen <tlikonen@iki.fi> writes:

>> (replace-regexp "[[:alpha:][:digit:]]" "x") One1
>> (will be xxxx)
>
> I think [[:alpha:][:digit:]] is the same thing as
> [[:alnum:]].

OK, I made up the example so the OP would understand
the brackets, that is, the first (outer) pair makes it
a class, and the second (inner) pair puts some chars
into that class. So you'd not think [[:alnum:]] is
"atomic" syntax... I don't know how to better explain
it - the example is more clear, but of course examples
should make sense as well...

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