Sample answer for ACOM1900 c/w 2, 2007-8
Roy Ruddle, February 2008

=================pseudocode (30 marks in total; NB: for good marks, s/w needs to include generic functions that process author and journal data)===================
-------main program--------
#
# The main program
#
set AuthorList to empty list
set JournalList to empty list

open input file

FOR each Line of input file
	extract Authors from Line

	FOR each Author in Authors
		CALL AddToList with AuthorList and Author
	ENDFOR

	extract Journal from Line
	CALL addToList with JournalList and Journal
ENDFOR

close input file

CALL PrintList with AuthorList

CALL PrintList with JournalList


------PrintList( List )------
#
# The PrintList function sorts the supplied List and prints it to the screen.
#
CALL SortList with List
CALL GetNumberLinesOnScreen RETURNING NumLines

CALCULATE number of screens needed to display List

FOR each screen
	PRINT next NumLines - 1 items from List
	PROMPT user to press return to display next screen
ENDFOR


------AddToList( List, Item )------
#
# The AddToList function adds the supplied Item to the List. If the Item is already in the List
# then it is left unchanged.
#
CALL GetItemNumber RETURNING ItemNum

IF ItemNum = -1 THEN
	append Item to List
ENDIF


------GetItemNumber( List, Item )------
#
# The GetItemNumber function determines the index of supplied Item in List.
# If Item is not in List then return -1.
# Otherwise return the item's index, which will be in the range 0 to list length - 1.
#
set ItemNum to -1
set ItemCount to 0

WHILE ItemCount < number of items in List and ItemNum = -1 THEN

	IF Item = List[ItemCount]
		ItemNum = ItemCount
	ENDIF
		
	INCREMENT ItemCount
ENDWHILE

RETURN ItemNum