11.3.12 at_end_of_line/[0,1]

Synopsis

at_end_of_line

at_end_of_line(+Stream)

Test whether end of line (record) has been reached for the current input stream or for the input stream Stream.

Arguments

Stream

stream_object, must be ground

A valid Prolog input stream, defaults to the current input stream.

Description

Succeeds when end of line (record) is reached for the specified input stream. An input stream reaches end of line when all the characters except <LFD> of the current line have been read.

Is also true whenever at_end_of_stream/[0,1] is true.

Exceptions

Stream errors (see ref-iou-sfh-est), plus:

existence_error

Some operating system dependent error occurred in reading.

Comments

Coding with at_end_of_line/[0,1] to check for end of line is more portable among different operating systems than checking end of line by the input character code.

See Also

at_end_of_stream/[0,1], skip_line/[0,1], set_input/1.