Input/Output Predicates

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Detailed Description

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Some of the Input/Output predicates described below will in certain conditions provide error messages and abort only if the file_errors flag is set If this flag is cleared the same predicates will just fail Details on setting and clearing this flag are given under 7.7

Modules
	Aliases to Stream Names
	Aliases: This file defines the main operations on aliases, a second name for a file.
	Character-Based Input/Output
	YAP implements most of the ISO-Prolog built-ins.
	Character Encoding and Manipulation.
	The Prolog library includes a set of built-in predicates designed to support manipulation of sequences of text, represented either as lists, atoms or strings.
	Memory Streams
	Formatted Output
	This file includes the definition of the formatted output predicates.
	Term Writing in Prolog.
	%!
	YAP Old Style Socket and Pipe Interface
	Autoload the socket/pipe library.
	File and Directory Operations
	File Name Resolution
	Support for file name resolution through absolute_file_name/3 and friends.
	Access to Operating System Functionality
	The following built-in predicates allow access to underlying Operating System functionality.
	Format
	%!
	StreamM
	%! %!