A.35 library(readutil): Reading lines, streams and files
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Availability::- use_module(library(readutil)).(can be autoloaded)
Sourceread_line_to_codes(+Stream, -Codes)
Read the next line of input from Stream and unify the result with Codes after the line has been read. A line is ended by a newline character or end-of-file. Unlike read_line_to_codes/3, this predicate removes a trailing newline character.

On end-of-file the atom end_of_file is returned. See also at_end_of_stream/[0,1].