The 2 major features I'm looking for are multiplexing (input stream can be converted into several output streams) and syntactic simplicity.

If by "multiplexing" you mean that a single input stream would be (selectively?) directed to some number of output file handles or separate sub-processes, I don't see a need for anything beyond the standard "open()" call. Open as many output file handles as you need, whether they refer to disk files or to processes (using open my $fh, '|-', "process", @args). (Update: this sounds to me like it might be "de-multiplexing" (demuxing for short), which is sort of the opposite of "multiplexing" (muxing).)

As for syntactic simplicity, you are either going to be doing a simple loop over file handles for each input record (print to each output in turn), or else you'll put the file handles into a "dispatch table" hash, and print to the ones you want according to whatever decision needs to be made on a record-by-record basis.

In reply to Re: Stream processor? by graff
in thread Stream processor? by ursus

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.