REXX Programming

LENGTH OF COURSE:
3 Days

DESCRIPTION: This course provides a comprehensive review of the REXX programming language. Students will begin with the fundamentals of the REXX language and conclude with advanced programming techniques. The simplicity and power of REXX is emphasized throughout the course. From entry level programmer to advanced, this course is a must for students that will be coding and enhancing REXX programs.

PREREQUISITES: Some knowledge of data processing concepts and programming.

INSTRUCTION TECHNIQUES: A combination of Lecture, Demonstrations, and Labs (when/where available).

AUDIENCE

This course is designed for programmers and analyst that need to become proficient with the use of the REXX programming language.

KEY HIGHLIGHTS:

Background of REXX
- REXX, What is it?
- Summary of the REXX language
- Design Principles
- History
REXX Language Definition
- Characters and Encoding
- Structure and General Syntax
- Expressions and Operators
- Clauses and Instructions
- Assignments and Variables
- Commands to External Environments

REXX Keyword Instructions
- ADDRESS
- ARG
- CALL
- DO
- DROP
- EXIT
- IF
- INTERPRET
- ITERATE
- NOP
- NUMERIC
- OPTIONS
- PARSE
- PROCEDURE
- PULL
- PUSH
- QUEUE
- RETURN
- SAY
- SELECT
- SIGNAL
- TRACE
- LEAVE

Function Calls
Built-in Functions
Parsing for ARG, PARSE, and PULL
Numbers and Arithmetic
Input and Output Streams
Conditions and Condition Traps
Interactive Tracing
Reserve Keywords
Language Extendibility
Special Variables
Error Numbers and Messages
Sample program review
REXX Syntax Diagram Review

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