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Re^2: what is the purpose of Tie::File

by Lotus1 (Curate)
on Nov 11, 2012 at 23:14 UTC ( #1003353=note: print w/replies, xml ) Need Help??

in reply to Re: what is the purpose of Tie::File
in thread what is the purpose of Tie::File

Thanks for the links. Those make it pretty clear how it is useful. Although Perl isn't a text editor I seem to be too often.

On one of the slides in the second link I found this interesting regex. s/^/>> /; Another obvious thing I suppose that I didn't know or realize before: that you can substitute something for nothing and therefore insert something at a boundary.

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Re^3: what is the purpose of Tie::File
by ysth (Canon) on Nov 13, 2012 at 22:30 UTC
    Yes, or you can substitute something for what may be nothing, as in s/\n*\z/\n/.
    A math joke: r = | |csc(θ)|+|sec(θ)|-||csc(θ)|-|sec(θ)|| |

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