// stdio.asm: WORD p_read_stream_line,'READ-STREAM-LINE' anchor:p_read_stream_line[] === Word: READ-STREAM-LINE .... Data stack: ( stream -- n ) .... "READ-STREAM-LINE" is a function word that gets the next line from the given stream buffer into PAD and returns number of characters. If the stream is backed by a file descriptor, the stream buffer is refilled from there as needed, by a SYS_READ call when more characters are needed.