On May 15, 2007, at 6:42 PM, Mike Blezien wrote:
Hello,
this one has been driving me nuts and I'm sure it's something very
simple I maybe overlooking. I need to assign a delimiter variable
IE: Pipe or Comma delimiter:
my $del = '|'; # use either a '|' or ','
my $dataline = "0|1|2|3|4|5|6|7|8|9";
my @data = split(/$del/, $dataline);
This does not work, it won't split the file line with the '|'
delimiter, and get no errors. But if I do this:
my $dataline = "0|1|2|3|4|5|6|7|8|9";
my @data = split(/\|/, $dataline);
Then it works prefectly, it splits the line as expected. What am I
missing ??
The actual regexp is what you get _after_ interpolation.
Since the pipe is a metacharacter it is being interpreted as such, as
if you directly wrote
split /|/, ...
To prevent this there's quotemeta(), which is available in literals
as \E:
my @data = split(/\E$del/, $dataline);
-- fxn
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