On Sat, Apr 03, 2004 at 11:53:59AM -0800, R. Joseph Newton wrote: > Paul Johnson wrote: > > > $_ = "Leave me alone!"; > > $s = "0"; > > Better yet: > $lower_or-mixed_case_string = 'o';
I worry that you may have missed the point of the example, which was the value of the variable being passed into the to_upper subroutine. That has since been discussed elsewhere in this thread, but you could argue that I should have been more explicit. > > to_upper $lower_or-mixed_case_string; s/-/_/ ? > With intelligent use of the editing facilities available, extra characters do > not cost much. Correct. Steve McConnell had a review draft of his chapter on naming variables online, but now you'll have to wait for the second edition of Code Complete to come out before you can read it. A couple of interesting points he makes on variable name length are that the length of a variable name should reflect the scope of the variable. A short variable name is fine in a restricted scope. For a larger scope, use a longer name. I always start global variables with a capital letter. He also mantions that i is often a very good name for a loop variable in a restricted scope. The first edition was very good. The second looks like it will be even better. -- Paul Johnson - [EMAIL PROTECTED] http://www.pjcj.net -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
