Book Image

SAP ABAP Advanced Cookbook

By : Rehan Zaidi
Book Image

SAP ABAP Advanced Cookbook

By: Rehan Zaidi

Overview of this book

ABAP (Advanced Business Application Programming) is SAP's proprietary 4th Generation Language (4GL). SAP core is written almost entirely in ABAP.ABAP is a high level programming language used in SAP for development and other customization processes."SAP ABAP Advanced Cookbook"ù covers advanced SAP programming applications with ABAP. It teaches you to enhance SAP applications by developing custom reports and interfaces with ABAP programming. This cookbook has quick and advanced real world recipes for programming ABAP.It begins with the applications of ABAP Objects and ALV tips and tricks. It then covers Design Patterns and Dynamic Programming in detail.You will also learn the usage of quality improvement tools such as transaction SAT, SQL Trace, and the Code Inspector.Simple transformations and its application in Excel Downloading will also be discussed, as well as the newest topics of Adobe Interactive Forms and the consumption and creation of Web services. The book comes to an end by covering advanced usage of Web Dynpro for ABAP and the latest advancement in Floorplan Manager.
Table of Contents (22 chapters)
SAP ABAP Advanced Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Removing repeated words from text string


In this recipe, we will use the start and end of word operators along with the subgroup register placeholders in order to write a program that will remove adjacent duplicate words from a text string. For example, from the text 'this this is is a repeated text text 11 11', the duplication of words will be removed and the new text 'this is a repeated text 11' is given as the output.

How to do it...

In order to create a repeated word removal program, proceed as follows:

  1. Declare the textstream string. Then assign some text to it that has repeated words in it.

  2. A replace all occurrences statement is then written with the regular expression (\<\w+\>) \1. The replacement key is '$1'.

  3. The if statement is then used for checking the return code. For sy-subrc having the value 0, the message Number is Valid is displayed.

How it works...

The regex used in this recipe is different from that used in the previous one. Since we require searching of duplicate words rather...