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date	99.09.11.12.42.09;	author rse;	state Exp;
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@Incorporate stuff from RSE's Sfio98 variant
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IO disciplines allow applications to extend stream data processing.
See the Sfio manual pages for detail on creating discipline structures
and inserting them into streams. This directory contains a number
of useful disciplines, including one to uncompress a file compressed
by the Unix compress program and one to make reading DOS text files more
comfortable by translating \r\n to \n.

Disciplines are reusable code, please contribute any interesting disciplines
that you come up with. This is best done by sending such code to me at
the address below. Sharing reusable code means that the name space must
be managed. Therefore, I recommend that each discipline package provides
the following public interface:

Sfdisc_t* sfdcXXX(Sfio_t* f, other arguments):
	Create a discipline of the type XXX and insert it into the
	stream f. For example, the below call create a discipline that
	make the stream "f" act as if it's the union of the "n" streams
	given in "array".
		sfdcunion(Sfio_t* f, Sfio_t** array, int n);
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