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bug#15228: making open-process public

From: Amirouche Boubekki
Subject: bug#15228: making open-process public
Date: Sat, 03 Sep 2016 09:33:32 +0200
User-agent: Roundcube Webmail/1.1.2

Wingo wrote:

We could just expose `open-process' from (ice-9 popen) to start with.

AFAIK, that's what Mark wants.

Here is an example use of `open-process' to wrap `html2text':

   (use-modules (ice-9 popen))

   (define open-process (@@ (ice-9 popen) open-process))

   (define (html2text string)
     (with-error-to-file "/dev/null"
       (lambda ()
(call-with-values (lambda () (open-process OPEN_BOTH "html2text"))
           (lambda (read-port write-port pid)
             (display string write-port)
             (close-port write-port)
             (let ((str (read-string read-port)))
               (close-port read-port)
               (waitpid pid)

IIUC to achieve this goal, I need to make `open-process' public
in `ice-9 popen` module and add documentation for it?

Is that correct?

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