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Re: Simple file to array

by waxmop (Beadle)
on Jul 08, 2002 at 20:30 UTC ( #180311=note: print w/replies, xml ) Need Help??

in reply to Simple file to array

write the file with addresses like so:

then to load this into 2 arrays ( 1 for names, 1 for email addresses) do something like this:

open (IN, "filename.txt") or die "can't open filename.txt!"; while ( $line = <IN> ) { @parts = split /___/, $line; push @names, $parts[0]; push @addresses, $parts[1]; } close IN;

and now you've got 2 arrays: @names has the names, and @addresses has the addresses. They are indexed by the same number, so joey's name is stored at


and his address is stored at $addresses[0]

another exciting way to do this would be to use a hash.

open (IN, "filename.txt") or die "can't open filename.txt!"; while ( $line = <IN> ) { @parts = split /___/, $line; $name = $pts[0]; $address = $pts[1]; $hash{$name} = $address; } close IN;

Now, to get joey's address, just do this:

print "joey's address is ", $hash{"joey"}, ".\n";

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Node Type: note [id://180311]
[Discipulus]: their?
[karlgoethebier]: marto: "their inability.." Perhaps the result of a wrong education?
[karlgoethebier]: or no education?
[choroba]: their = his or her
[Discipulus]: anyway once I proposed an automatic font decrease for post below -1, stepping every 5 votes: i'm still thinks it's a good idea but dunno if feasible
[shmem]: ...emulated dual in english
[shmem]: Discipulus: has that been in the CB? or in a PM node proper? for the latter case, can you provide the ID?
[Discipulus]: you seriously can use their in this way in eng?
[Corion]: Meh. $effin_bad_system has an interface breakdown and then loads events in parallel with events overtaking one another instead of being processed sequentially
[shmem]: Discipulus: dunno, but we do all the time ^^

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