File popen.icn

Summary

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	File:     popen.icn
	
	Subject:  Procedures for pipes
	
	Author:   Ronald Florence

	Date:     September 28, 1992

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   This file is in the public domain.

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	Version:  1.0

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  Contents:

  popen(command, mode)
	mode == "w" writes to a pipe
	mode == "r" reads from a pipe

  pclose(pipe)

  On systems without real pipes (ms-dos), popen and pclose imitate
  pipes; pclose must be called after popen.  The code should run
  faster on ms-dos if dir in tempfile() points to a directory on a
  virtual disk.

  On systems with real pipes, popen & pclose open and close a pipe.
 
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Procedures:
pclose, popen, tempfile

Global variables:
PIPE_cmd, PIPE_fname

This file is part of the (main) package.

Source code.

Details
Procedures:

pclose(pipe)


popen(cmd, mode)


tempfile(template)


Global variables:
PIPE_cmd

PIPE_fname


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