You probably could, but why the requirement to avoid a temporary file? It feels as if you may be doing some premature optimization. The operating system won't necessarily have to do any physical I/O, as the file would likely reside in RAM for the relatively short duration that it exists. If you're truly concerned about disk I/O, many operating systems provide RAM-based filesystems on which you could place your temp file.

If it's a security concern (i.e., you don't want a temporary file that *might* get written to disk), then you may have to audit emacs as well, as it may use temporary files during the edit process...and we won't even talk about the swap space....

...roboticus

In reply to Re: In memory edit of perl data with emacs by roboticus
in thread In memory edit of perl data with emacs by Anonymous Monk

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!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • 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, details, 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, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            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.