Proicon

The ProIcon Programming Language for Apple Macintosh Computers Version 2.0 The ProIcon Group: Salida Colorado and Tucson, Arizona The ProIcon Programming Language for Apple Macintosh Computers, © 1989, 1990, 1994 The Bright Forest Company. ISBN 0-939693- 08-3. Version 2.0 No part of this manual may be reproduced in any form by any means without permission in writing from The Bright Forest Company. Apple is a trademark of Apple Computer, Inc. HyperCard is a registered trademark of Apple Computer, Inc. Lightspeed is a registered trademark of Lightspeed, Inc. Macintosh is a trademark licensed to Apple Computer, Inc. MPW is a registered trademark of Apple Computer, Inc. Symantec is a trademark of Symantec Corporation Some material in this manual is adapted from the MaxSPITBOL manual with the permission of Catspaw, Inc. The Bright Forest Company P.O. Box 12076 Tucson, Arizona 85732-2076 CONTENTS 1 Getting Started 1-1 Read this First 1-1 Knowing Your Macintosh 1-1 Installing ProIcon 1-2 A Guide to the Manual 1-3 2 More About ProIcon 2-1 If You’re New to Icon ... 2-1 Icon for SNOBOL4 Programmers 2-4 About the Name “Icon” 2-10 User’s Manual 3 A Quick Tour 3-1 4 Compiling and Running Programs 4-1 Compilation and Linking 4-1 Libraries 4-2 Icon Applications 4-3 Program Options 4-3 Parameter Strings 4-5 Path Names 4-7 Library Folders 4-7 Input and Output 4-9 Memory Management 4-11 iii Output Limiter 4-16 Persistent Settings 4-17 Launching Executable Files 4-17 Stopping ProIcon 4-17 MultiFinder 4-17 5 Online Help 5-1 6 Entering and Editing Text 6-1 The Editor 6-1 The Interactive Window 6-11 Window Management 6-12 Startup Options 6-13 7 Menu Reference 7-1 Keyboard Shortcuts 7-6 Window Shortcuts 7-8 The Icon Programming Language 8 Icon Language Overview 8-1 Introduction 8-1 Strings 8-2 Character Sets 8-3 Expression Evaluation 8-4 String Scanning 8-7 Structures 8-8 Procedures 8-11 An Example 8-12 iv 9 Version 8 of Icon 9-1 10 ProIcon Extensions 10-1 String Comparison 10-1 Function Tracing 10-1 Termination Dump 10-2 System-Dependent Features 10-3 Window Functions 10-3 Other Functions 10-7 External Functions 10-8 11 Mini Reference Manual 11-1 Functions 11-3 Prefix Operations 11-108 Infix Operations 11-121 Other Operations 11-155 Keywords 11-164 Control Structures 11-176 …