The stupid question is the question not asked | |
PerlMonks |
Re^3: Iterator to parse multiline string with \\n terminatorby smls (Friar) |
on Oct 06, 2013 at 11:47 UTC ( [id://1057141]=note: print w/replies, xml ) | Need Help?? |
The difference is that redo does not re-evaluate the loop condition (in this case: "(<DATA>)", which fetches the next line) before evaluating the loop body again, whereas next does. This is why in jwkrahn's solution, the next line is fetched manually before calling redo:
The advantage of jwkrahn's solution with redo, is that the implicit variable $_ can be used to store the complete multiline record. The advantage of kcott's solution with next, is that there is only one place where the <> operator for fetching the next line is used (inside the loop condition) - but re-evaluating the the loop condition also resets $_, so in this case a custom variable needs to be declared above the loop to store the current record.
In Section
Seekers of Perl Wisdom
|
|