On 7/31/07, Chas Owens <[EMAIL PROTECTED]> wrote:
> On 7/31/07, Nevada <[EMAIL PROTECTED]> wrote:
> snip
> > but what is [\pL']?
> snip
>
> Oops, I misread the question. It matches a unicode letter or a single quote.
>
from perldoc perlre
You can specify a character class, by enclosing a list of characters in
"[]", which will match any one character from the list. If the first
character after the "[" is "^", the class matches any character not in
the list. Within a list, the "-" character specifies a range, so that
"a-z" represents all characters between "a" and "z", inclusive. If you
want either "-" or "]" itself to be a member of a class, put it at the
start of the list (possibly after a "^"), or escape it with a back‐
slash. "-" is also taken literally when it is at the end of the list,
just before the closing "]". (The following all specify the same class
of three characters: "[-az]", "[az-]", and "[a\-z]". All are different
from "[a-z]", which specifies a class containing twenty-six characters,
even on EBCDIC based coded character sets.) Also, if you try to use
the character classes "\w", "\W", "\s", "\S", "\d", or "\D" as end‐
points of a range, that's not a range, the "-" is understood literally.
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