.------[ Michael Weber wrote (2003/03/25 at 13:23:36) ]------
|
| Here are two scripts, the only difference is the marker I am splitting
| by. I really expect the output from the two scripts to be the same.
| Why is the output different?
|
| perl -e '@NEW = split(".", "1.2.3"); print "x", $NEW[1], "x\n"; '
| Outputs xx
|
| perl -e '@NEW = split("_", "1_2_3"); print "x", $NEW[1], "x\n"; '
| Outputs x2x
|
| Can't I use a period to mark fields in perl?
|
`-------------------------------------------------
split() doesn't just take a character as to what to separate on, it
takes a regular expression. What you're running into is that the
period means "any character" in a regular expression.
So if you did the following it would work as expected:
perl -e '@NEW = split(/\./, "1.2.3"); print "x", $NEW[1], "x\n"; '
The forward slashes denote the start/end of the pattern and the
backslash says to use a literal period as opposed to the regex
operator 'any character'.
Hope this helps.
---------------------------------
Frank Wiles <[EMAIL PROTECTED]>
http://frank.wiles.org
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