Process channels

Author(s): Jose F. Morales.

This module provides an abstraction for communication channels between processes (process) based on standard input/output/error streams.

Usage and interface

Library usage:
:- use_module(library(process/process_channel)).
Exports:
- Predicates:
  channel_bindings/2, cleanup_binding/1, binding_port_call/1, send_input/2, receive_output/2, open_redirect/3, close_redirect/2.
- Regular Types:
  process_channel/1.

default: the default descriptor
null: the null stream (see dev_null/1)
pipe(-Stream): a pipe (Stream unified with the parent's read/write end of the pipe)
file(+File): a file File
stream(+Stream): a stream Stream (must be opened with the right mode)
file_append(+File): a file File, where writes are appended to the end
string(?String): a string (list of codes)
line(?Line): a string, ignoring trailing new line character
atmlist(?Xs): a list of atoms (for each line)
terms(?Xs): terms, ended in full-stop (using read_term/3 and write_canonical/2)
stdout: (only valid for stderr(_)) redirect to the same channel than stdout (useful for redirecting both standard output and standard error).