Beefy Boxes and Bandwidth Generously Provided by pair Networks
P is for Practical
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
Open a file and write "\n" to it. Re-open the file and use binmode, then read it back in. The result is the desired string.

Something like this...

open $foo, $tempfilename; print $foo "\n"; close $foo; # probably redundant, but why not. open $foo, $tempfilename; binmode $foo; read $foo, $result, 999; close $foo;
If you don't have a writable file (why not a valid temp directory??!) use a filehandle tied to a text buffer. Say, IO::Scalar.

Hmm, I tried that and it didn't work, as I half-suspected. The binmode thing is done in the C Standard library functions, and Perl might be relying on that and have no real knowledge of what it means on a given platform.

Are you sure you can't come up with a writable file, or a fake file that operates on the FD level rather than Perl's tie level?

—John


In reply to Re: Quick and portable way to determine line-ending string? by John M. Dlugosz
in thread Quick and portable way to determine line-ending string? by bikeNomad

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • Outside of code tags, you may need to use entities for some characters:
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others cooling their heels in the Monastery: (9)
    As of 2014-12-22 13:53 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      Is guessing a good strategy for surviving in the IT business?





      Results (118 votes), past polls