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You need to start "some program" and make two pipes: one feeding to its standard input, and one reading from its standard output. I think there is even a pipe3 version, but don't recall if that's the right thing.

Without the fancy syntax, you can create a named pipe, and then as a separate step use the redirection syntax ">" to send the output of the program to the pipe you previously opened. You have the other end and can read from that. You can use the pipe syntax for the other direction (only) or use "<" and ">" in the `system` construct to do them both with named pipes.


In reply to Re^3: Bidirectional IPC with Expect and Passthrough by John M. Dlugosz
in thread Bidirectional IPC with Expect and Passthrough by steve

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    [Corion]: Meh. I think I have now the parts down that I want from a simple Javascript frontend for single-page- applications with a aPerl backend. But it seems that all Javascript templating modules either don't support two-way binding (which would be nice) or ...
    [Corion]: ... don't support server-side precompilation (which means the client has to compile all templates to Javascript themselves), or are giant frameworks that expect to do everything (which is not what I want)
    [Corion]: I feel that there is a talk somewhere in there, either about the structure and parts, or how I used several parts to get a complete whole.
    [Corion]: Maybe I can still find something that is compatible with handlebars.js (which has JS precompilation) but allows for two-way data binding (which is great for the UI)

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