Rexx Programmer's Reference -- About the Author -- Foreword -- Acknowledgments -- Contents at a Glance -- Contents -- Introduction -- Part I -- Chapter 1: Introduction to Scripting and Rexx -- Overview -- Why Scripting? -- Why Rexx? -- Power and Flexibility -- Universality -- Typical Rexx Applications -- What Rexx Doesn't Do -- Which Rexx? -- Downloading Regina Rexx -- Installing Regina under Windows -- Installing Regina under Linux and Unix -- Summary -- Test Your Understanding -- Chapter 2: Language Basics -- Overview -- A First Program -- Language Elements -- Operators -- Summary -- Test Your Understanding -- Chapter 3: Control Structures -- Overview -- Structured Programming in Rexx -- IF Statements -- DO Statements -- A Sample Program -- SELECT Statements -- CALL Statements -- Another Sample Program -- Unstructured Control Instructions -- Summary -- Test Your Understanding -- Chapter 4: Arrays -- Overview -- The Basics -- A Sample Program -- Associative Arrays -- A Sample Associative Array Program -- Creating Data Structures Based on Arrays -- Summary -- Test Your Understanding -- Chapter 5: Input and Output -- Overview -- The Conceptual I/O Model -- Line-Oriented Standard I/O -- Character-Oriented Standard I/O -- Conversational I/O -- Redirected I/O -- I/O Issues -- Summary -- Test Your Understanding -- Chapter 6: String Manipulation -- Overview -- Concatenation and Parsing -- A Sample Program -- String Functions -- The Word-Oriented Functions -- The Bit String Functions and Conversions -- Summary -- Test Your Understanding -- Chapter 7: Numbers, Calculations, and Conversions -- Overview -- The Basics -- More Numeric Functions -- Conversions -- A Sample Program -- Summary -- Test Your Understanding -- Chapter 8: Subroutines, Functions, and Modularity -- Overview -- The Building Blocks -- Internal Functions and Subroutines.

Passing Parameters into a Script from the Command Line -- Passing Parameters into Subroutines and Functions -- A Sample Program -- The Function Search Order -- Recursion -- More on Scoping -- Another Sample Program -- Summary -- Test Your Understanding -- Chapter 9: Debugging and the Trace Facility -- Overview -- The say Instruction -- The trace Instruction -- Reading Trace Output -- The trace Function -- Interactive Tracing -- Summary -- Test Your Understanding -- Chapter 10: Errors and Condition Trapping -- Overview -- Error Trapping -- How to Trap Errors -- A Sample Program -- An Improved Program -- Special Variables -- signal versus call -- The condition Function -- A Generic Error-Trap Routine -- Limitations -- Summary -- Test Your Understanding -- Chapter 11: The External Data Queue, or "Stack" -- Overview -- What Is the Stack? -- An Example - Placing Data into the Stack and Retrieving It -- Another Example - The Stack for Interroutine Communication -- Practical Use of the Stack -- Summary -- Test Your Understanding -- Chapter 12: Rexx with Style -- Overview -- Capitalize on Capitalization -- Good Variable Naming -- Use Spacing and Indentation -- Limit Nesting -- Comment Code -- Write Modular Code -- Write Structured Code -- Handle Errors -- Additional Suggestions -- Avoid Common Coding Errors -- Summary -- Test Your Understanding -- Chapter 13: Writing Portable Rexx -- Overview -- Factors Affecting Por tability -- Rexx Standards -- How a Script Learns about Its Environment -- A Sample Program -- Techniques for Command Por tability -- Issues in Code Por tability -- I/O and Code Por tability -- Interfaces for Por tability - RexxUtil -- Summary -- Test Your Understanding -- Chapter 14: Issuing System Commands -- Overview -- Issuing Operating System Commands -- Feedback from OS Commands -- Controlling Command I/O -- A Few Examples.

Discovering Defaults - the address Function -- Issuing Commands to Other Environments -- A Sample Program -- Using the Stack for Command I/O -- Summary -- Test Your Understanding -- Chapter 15: Interfacing to Relational Databases -- Overview -- Rexx/SQL Features -- Downloading and Installing Rexx/SQL -- The Basics -- Example - Displaying Database Information -- Example - Create and Load a Table -- Example - Select All Results from a Table -- Example - Select and Update Table Rows -- Example - Cursor Processing -- Bind Variables -- Working with Other Databases -- Other Database Interfaces -- Summary -- Test Your Understanding -- Chapter 16: Graphical User Interfaces -- Overview -- Rexx/Tk -- Rexx/DW -- Graphical Images with Rexx/gd -- Summary -- Test Your Understanding -- Chapter 17: Web Programming with CGI and Apache -- Overview -- Common Gateway Interface -- Programming Apache with Mod_Rexx -- Summary -- Test Your Understanding -- Chapter 18: XML and Other Interfaces -- Overview -- XML with RexxXML -- Other Rexx Tools, Interfaces and Extensions -- Summary -- Test Your Understanding -- Part II -- Chapter 19: Evolution and Implementations -- Overview -- The Evolution of Rexx -- Free Rexx Implementations -- Which Rexx? -- Rexx Intepreters -- Object-Oriented Rexx -- NetRexx -- Mainframe Rexx -- Other IBM Rexxes -- Rexx for Handhelds and Embedded Programming -- Commercial Rexxes -- Rexx Compilers and Tokenizers -- Running Rexx in the Shell -- Rexx As an API -- Rexx As a Macro Language -- Multiple Rexx Interpreters on One Computer -- The Future of Rexx -- Summary -- Test Your Understanding -- Chapter 20: Regina -- Overview -- Advantages -- Regina's Extras -- Regina's SAA API -- Sample Scripts -- Summary -- Test Your Understanding -- Chapter 21: Rexx/imc -- Overview -- Advantages -- Installing Rexx/imc -- Features -- The C-language I/O Model.

Interfaces and Tools -- A Sample Program - Environmental Information -- A Sample Program - I/O -- Summary -- Test Your Understanding -- Chapter 22: BRexx -- Overview -- Advantages -- Downloading and Installation -- Extra Built-in Functions -- Input/Output -- The External Function Libraries -- Windows CE -- Issuing Operating System Commands -- Example - C-like I/O -- Example - ANSI Screen I/O with Random Data Access -- Example - Direct Data Access -- Example - DOS Functions -- Summary -- Test Your Understanding -- Chapter 23: Reginald -- Overview -- Advantages -- Download and Installation -- Tools -- Windows GUI -- GUI Development Aids -- Input/output -- Documentation and Tutorials -- Other Features and Functions -- Leveraging Reginald -- Sample Scripts -- File, Directory, and Drive Management -- Sample Scripts -- GUIs -- Let My Computer Speak! -- Accessing the Windows Registry -- Summary -- Test Your Understanding -- Chapter 24: Handhelds and Embedded Programming -- Overview -- Programming Handhelds -- Running Native - Symbian/EPOC32 -- DOS Emulation -- Embedded Device Programming -- Summary -- Test Your Understanding -- Chapter 25: Rexx for Palm OS -- Overview -- Advantages -- Downloading and Installation -- A Tutorial -- Summary -- Test Your Understanding -- Chapter 26: r4 and Object-Oriented roo! -- Overview -- Advantages -- Downloading and Installation -- Tools -- Object-Oriented Programming with roo! -- Summary -- Test Your Understanding -- Chapter 27: Open Object Rexx -- Overview -- Background -- Features -- Open Object Rexx for Linux -- The Basics -- The Class Libraries -- Other Object Rexx Additions -- Open Object Rexx for Windows -- Summary -- Test Your Understanding -- Chapter 28: Open Object Rexx Tutorial -- Overview -- A First Program -- Squaring a Number - Using Our Own Class and Method -- Another Simple OO Program.

Implementing a Stack through Objects -- A Video Circulation Application -- Concurrency -- Summary -- Test Your Understanding -- Chapter 29: IBM Mainframe Rexx -- Overview -- VM Rexx Differences -- OS/TSO Rexx Differences -- Mainframe Rexx and the Language Standards -- Sample Scripts -- Migrating Mainframe Scripts to Other Platforms -- Applying Your Rexx Skills to Other Platforms -- Further Information -- Summary -- Test Your Understanding -- Chapter 30: NetRexx -- Overview -- Why NetRexx? -- Do You Have to Know Java to Use NetRexx? -- Downloading and Installation -- Ways to Run NetRexx Programs -- Features -- Sample Programs -- Summary -- Test Your Understanding -- Part III -- Appendix A: Resources -- User Groups -- Web Forums -- The Rexx Standards -- Rexx Home Page at IBM -- Downloading IBM Rexx Manuals -- Rexx Books -- Appendix B: Instructions -- ADDRESS -- ARG -- CALL -- DO -- DROP -- EXIT -- IF -- INTERPRET -- ITERATE -- LEAVE -- NOP -- NUMERIC -- OPTIONS -- PARSE -- PROCEDURE -- PULL -- PUSH -- QUEUE -- RETURN -- SAY -- SELECT -- SIGNAL -- TRACE -- Appendix C: Functions -- ABBREV -- ABS -- ADDRESS -- ARG -- BITAND -- BITOR -- BITXOR -- B2X -- CENTER or CENTRE -- CHANGESTR -- CHARIN -- CHAROUT -- CHARS -- COMPARE -- CONDITION -- COPIES -- COUNTSTR -- C2D -- C2X -- DATATYPE -- DATE -- DELSTR -- DELWORD -- DIGITS -- D2C -- D2X -- ERRORTEXT -- FORM -- FORMAT -- FORMAT -- FUZZ -- INSERT -- LASTPOS -- LEFT -- LENGTH -- LINEIN -- LINEOUT -- LINES -- MAX -- MIN -- OVERLAY -- POS -- QUALIFY -- QUEUED -- RANDOM -- REVERSE -- RIGHT -- SIGN -- SOURCELINE -- SPACE -- STREAM -- STRIP -- SUBSTR -- SUBWORD -- SYMBOL -- TIME -- TRACE -- TRANSLATE -- TRUNC -- VALUE -- VERIFY -- WORD -- WORD -- WORDLENGTH -- WORDPOS -- WORDS -- XRANGE -- X2B -- X2C -- X2D -- Appendix D: Regina Extended Functions -- B2C -- BEEP -- BITCHG -- BITCLR -- BITCOMP -- BITSET -- BITTST.

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