AI/ES(Artificial Intelligence / Expert System)

Visual Prolog: Part 1

2012. Fall.SME., Pukyong Nat’l Univ.

Kim, Minsoo

Contents• Brief History• The IDE - Overview• Message Windows

Brief History• Logic Programming Language: Prolog

– 1984, Alain Colmerauer– Declarative Programming Language

• Turbo Prolog for PC– Borland corp.

• Visual Prolog– PDC: the Prolog Development Company– Object-Oriented, Strongly Typed, GUI and

IDE

The IDE - Overview• VIP v7.3 PE

– Task Window, Task Menu– Message Window

The IDE - Overview• Sample Project

– New Project• Project Name: ch01p01

The IDE - Overview• Project Tree

– TaskWindow, main.manifest, main.pack

The IDE - Overview• Build Empty Project

– Build Build

The IDE - Overview• Generated Files

– main.cl, main.pro

The IDE - Overview• Run Empty Project

– Build Execute

The IDE - Overview• Create a Form

– Project Tree: highlight root ‘ch01p01’– File New in Existing Package…

The IDE - Overview• Form Edit Window

– With Controls, Layout, Properties window

The IDE - Overview• Form Files

– *.cl, *.frm, *.i, *.pro

The IDE - Overview• Enable the Task Menu Option

– TaskWindow TaskMenu.mnu

The IDE - Overview• Save / Build Project Again / Add All

The IDE - Overview• Run Project Again

– [File New] is enabled– Do nothing menu option

The IDE - Overview• Add Event Listener to menu option

– TaskWindow.win Open

The IDE - Overview• Check the codes

– addMenuItemListener / onFileNew

The IDE - Overview• Change the code for onFileNew

– Remove underscore from ‘_Source’– Remember ending period!

• Rebuild / Execute Project– File New

The IDE - Overview• Add Mouse Listener to Form

– sampleForm.frm Open Properties/Event

The IDE - Overview• Change the code for onMouseDown

– Remove underscore from ‘_Source’, ‘_Point’

– Case Sensitive!

• Save, Rebuild and Run

Message Windows• vpiCommonDialogs class

– note/1, note/2– error/1, error/2– messageBox/6– ask/2, ask/3– getString/3– listSelect/5– getFileName/6

Message Windows• Add new MenuItem to Task Window

– TaskMenu.mnu Messages/WriteNote1

Message Windows• Add Event Listener to menu option

– TaskWindow.win id_messages

Message Windows• Check the codes

– onMessagesWritenote1

Message Windows• Change code

(onMessagesWritenote1)

• Save, Build and Run

Message Windows• Try note/2

– TaskMenu.mnu Messages/WriteNote2– TaskWindow.win

onMessagesWritenote2– Change code Save/Build/Execute

Message Windows• Including class library

– TaskWindow.pro Open

Message Windows• Include vpiCommonDialogs class

library

• Change codes

Message Windows• Try error/1, error/2

– TaskMenu.mnu Messages/WriteError1,2– TaskWindow.win

onMessagesWriteError1,2– Change code Save/Build/Execute

Message Windows• Try messageBox/6

– Title String, Message, Icon(0~3), Buttons(0~5), Default Button(0~2), Suspending(0,1)

– Change code Save/Build/Execute

Message Windows• Try ask/2, ask/3

– (Title String), Question Line, Answer List– Max 3 answers (0~2)

Message Windows• Try getString/3

– Title String, Question, Preset Answer• Try listSelect/5

– Title String, Choice List, Selected Index (0~), Selected String, Selected Index

Message Windows• Try getFileName/6

– Preset File Extension, List of File Filters (Pairs), Title String, Special Windows Properties List, Open Folder, Selected Files List