-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 According to Sebastian Kreft on 9/12/2006 8:51 PM: > I don't know if it is a standard of expr, but I think that is not intuitive > to write a plus symbol before the string substr if I want to get the length > of it.
POSIX states "The use of string arguments length, substr, index, or match produces unspecified results." (http://www.opengroup.org/onlinepubs/009695399/utilities/expr.html) This is because these four strings can also be operators. The + is necessary to tell expr that you want it interpreted as a string, not an operator. - -- Life is short - so eat dessert first! Eric Blake [EMAIL PROTECTED] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.1 (Cygwin) Comment: Public key at home.comcast.net/~ericblake/eblake.gpg Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFFCAXJ84KuGfSFAYARAk2QAJ9BA5J6nnJwxCRT1hSFTjbRmQ0e7gCgyYJw A39/5WHkkmD7XyQQptv5x+4= =mTMs -----END PGP SIGNATURE----- _______________________________________________ Bug-coreutils mailing list [email protected] http://lists.gnu.org/mailman/listinfo/bug-coreutils
