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Re: for loop ?

by philipbailey (Curate)
on Aug 10, 2011 at 19:43 UTC ( [id://919725] : note . print w/replies, xml ) Need Help??


in reply to for loop ?

Of course, for is indeed a looping construct, but in this case the for loops each have only one iteration. The programmer is using the "for" to set the default variable $_ to the value of $os or $hardware in each case, then performing a regular expression match (/.../), implicitly on $_, against various values. Older Perls (5.8 and prior) do not have a switch statement (well, given/when statement), so various other approaches have been used in the past to emulate one. I would probably not use this particular approach myself, but it seems to work well enough.