469,301 Members | 2,278 Online
Bytes | Developer Community
New Post

Home Posts Topics Members FAQ

Post your question to a community of 469,301 developers. It's quick & easy.

Perl loops should use break, not last

Probably been mentioned before but I fail to see why Perl changed the
'break' keyword to 'last', in loops. Bear with me on this - it seems
semantically more accurate to say 'break' - you're immediately breaking out
of the loop. 'last' makes it sound like the current loop will be the last,
but not that the execution should be stopped immediately, whereas break
makes it sound like the latter.

Where can I propose that this be changed, or break aliased to last, for Perl
6?
--
Best regards,
Jeremy Morton (Jez)
Jul 19 '05 #1
1 119928
Jeremy Morton wrote:
Bear with me on this - it seems
semantically more accurate to say 'break' - you're immediately breaking out
of the loop. 'last' makes it sound like the current loop will be the last,


The semantics of 'break' or 'last' are defined by the language (in this
case Perl), not by you.

Why not think of 'last' as "this is the last statement to run for the
loop".

It's always struck me as odd that the 'continue' statement in 'C'
starts the next pass of a loop. This is definitely a strange use of the
concept of "continue". But it is the semantics of 'C', so I accept it.
By trying to map particular programming concepts into single English words
with exisiting meaning there is always going to be some sort of mismatching
oddity.
--
Just because I've written it doesn't mean that
either you or I have to believe it.
Jul 19 '05 #2

This discussion thread is closed

Replies have been disabled for this discussion.

Similar topics

3 posts views Thread by Oleg Leschov | last post: by
46 posts views Thread by Reinhold Birkenfeld | last post: by
2 posts views Thread by bobmct | last post: by
6 posts views Thread by Wijaya Edward | last post: by
15 posts views Thread by eight02645999 | last post: by
crystal2005
4 posts views Thread by crystal2005 | last post: by
reply views Thread by zhoujie | last post: by
reply views Thread by suresh191 | last post: by
1 post views Thread by Geralt96 | last post: by
By using this site, you agree to our Privacy Policy and Terms of Use.