> For example, before the POSIX standard, to match alphanumeric charac- > ters, you would have had to write /[A-Za-z0-9]/. If your character set > had other alphabetic characters in it, this would not match them, and > if your character set collated differently from ASCII, this might not > even match the ASCII alphanumeric characters. With the POSIX character > classes, you can write /[[:alnum:]]/, and this matches the alphabetic > and numeric characters in your character set, no matter what it is. I'm not sure I understand this, although I'm not a character set expert. But is there really some possible locale + awk implementation where an awk script, written in pure ASCII, operating on a pure ASCII input file, will have [A-Za-z0-9] match a different set of ASCII characters than [[:alnum:]] will match? - R. -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
