On Monday, April 8, 2002, at 10:40 AM, Chas Owens wrote:
> On Mon, 2002-04-08 at 12:00, bob ackerman wrote: >> >> On Monday, April 8, 2002, at 06:24 AM, David Gray wrote: >> >>>> I believe it is as simple as: >>>> >>>> $count = () = $string =~ /,/g; >>> >>> I can't seem to get my brain around what's happening here... would >>> someone be kind enough to explain? >>> >>> -dave >> >> $string =~ /,/g; >> >> that finds all occurrences of comma in the variable, $string. >> >> assigns the result in a list context - the anonymous list '()'. >> by assigning this to a scalar, $count, we get a value that is the size of >> the list, which is the number of matches that the regex made. >> that empty list thingy is confusing. >> it is more comprehensible if you assign it to a named array: >> $count = @arr = $string =~ /,/g; >> the matches are in @arr which consists of the comma of the match. >> then $count is the size of the array. > > With the downside that you have an array that you never use. Using () > to force list context is one of those strange little quirks that you > just get used to. These days I read () as the array equivalent of > scalar(). > agreed. i didn't mean to actually use a named array. i was suggesting it as a way to understand what was happening. definitely no sense to actually name the array in your working code. > -- > Today is Pungenday the 25th day of Discord in the YOLD 3168 > when is the next YOLD holiday? can we take the month off? :) > > Missile Address: 33:48:3.521N 84:23:34.786W would that missile be armed? is that a US missile or perhaps an Anarchist missile? missive? misdirection? -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
