bvstone

Removing Unwanted Characters from a String with RPG

Posted:

Removing Unwanted Characters from a String with RPG

Today I was working on a project where I needed to remove any special characters from a string.  In my case, I knew exactly what characters COULD be in the string.

I did a search and found a few examples, but most were using a list of invalid characters to replace them with a space, then trim out the spaces, or something of that nature.

In my case, I knew the characters I wanted to keep.  The solution was easier than expected.

D ValidChars      C                   CONST('ABCDEFGHIJKLMNOPQRSTUVWXYZ-            
D                                            abcdefghijklmnopqrstuvwxyz-            
D                                            0123456789-_ ')                        
 *                                                                                  
D tempString      S           1024                                                  
D i               S             10i 0                                               
 ****************************************************************                   
  tempString = 'B\&eca#use_^^& Road++==kill()';                                            
  i = %check(validChars:tempString);                                                
                                                                                    
  dow (i > 0);                                                                      
    tempString = %subst(tempString:1:i-1) + %subst(tempString:i+1);                 
    i = %check(validChars:tempString);                                              
  enddo; 

  *INLR = *ON;                                                                           

First, I defined a constant containing all the characters that were valid.  In this case it was A-Z, a-z, 0-9, _, - and space.

Then I simply used the %check BIF to check for any invalid characters in my string.  If I found one, I would substring two parts of the string together minus the one character that was invalid.

So when we started out with the string:
B\&eca#use_^^& Road++==kill()

We ended up with:
Because_ Roadkill

Pretty simply solution.  There most likely are other ways to handle this as well, but I thought I would share this example since the others I saw didn't really fit the bill.

Finally, you're probably wondering why I picked what I did for the test string.  Well, if you like car shows like me, check out RoadKill on YouTube Motortrend On Demand.  It's an excellent series from Motor Trend! 

Since cutting the cord at home and ditching DirecTV I've been forced to find replacements for my favorite shows, most of which were on Velocity (Bitchin Rides, etc).  I found the first two seasons of Roadkill on Netflix and the rest on YouTube.  Check it out!  I like the Rotsun and Stubby Bob the best.  :)


Last edited 04/07/2018 at 14:08:59



Latest Posts:

Why I Cancelled my DynDNS Service and How I Replaced It with an IBM i Application Why I Cancelled my DynDNS Service and How I Replaced It with an IBM i Application
Posted by 8 hours ago
IBM Power Systems >> (QGPL) IBM i
Green Tools for G Suite (G4G) Product Updates (Licensing, Functionality, Base Product) Green Tools for G Suite (G4G) Product Updates (Licensing, Functionality, Base Product)
Posted by July 13, 2019
BVSTools >> BVSTools Announcements >> GreenTools for G Suite (Google Apps) (G4G) Specific Announcements
Reading JSON Data from Standard Input With YAJL and RPG Reading JSON Data from Standard Input With YAJL and RPG
Posted by July 12, 2019
Programming >> Proof of Concept (POC)
MAILTOOL Updated to Allow Use of IBM Global Security Kit (GSKIT) for SSL/TLS Communications MAILTOOL Updated to Allow Use of IBM Global Security Kit (GSKIT) for SSL/TLS Communications
Posted by June 19, 2019
BVSTools >> BVSTools Announcements >> eMail Tool (MAILTOOL) Specific Announcements
GETURI v10.00 Released Supporting IBM Global Security Kit (GSKIT) and Server Name Indication (SNI) GETURI v10.00 Released Supporting IBM Global Security Kit (GSKIT) and Server Name Indication (SNI)
Posted by June 11, 2019
BVSTools >> BVSTools Announcements >> Get URI (GETURI) Specific Announcements
BVSTools Now Offers Vertex Cloud Interface BVSTools Now Offers Vertex Cloud Interface
Posted by April 15, 2019
BVSTools >> BVSTools Announcements
Token Has an Invalid Signature Error for Office 365 Email Token Has an Invalid Signature Error for Office 365 Email
Posted by March 22, 2019
BVSTools >> BVSTools Software Discussion >> GreenTools for Microsoft Apps (G4MS) Specific Discussion
Resending Emails that have Errored Out with Updated Router or Authentication Information Resending Emails that have Errored Out with Updated Router or Authentication Information
Posted by March 1, 2019
BVSTools >> BVSTools Software Discussion >> Email Tools (MAILTOOL) Specific Discussion
BVSTools Offers Toolset to Work With HubSpot OAuth 2.0 APIs On Your IBM i BVSTools Offers Toolset to Work With HubSpot OAuth 2.0 APIs On Your IBM i
Posted by January 27, 2019
BVSTools >> BVSTools Announcements
G4MSDRV Currently Not Supported G4MSDRV Currently Not Supported
Posted by January 17, 2019
BVSTools >> BVSTools Announcements >> GreenTools for Microsoft Apps (G4MS) Specific Announcements
Removing Trailing Carriage Returns and/or Line Feeds from a String with RPG Removing Trailing Carriage Returns and/or Line Feeds from a String with RPG
Posted by December 26, 2018
Programming >> RPG Programming
Create QRCODE in DDS Create QRCODE in DDS
Posted by September 21, 2018
Programming >> RPG Programming
Base64 Encoding a File with RPG Base64 Encoding a File with RPG
Posted by September 6, 2018
Programming >> RPG Programming
Building JSON with RPG and YAJL and Writing to Standard Output Building JSON with RPG and YAJL and Writing to Standard Output
Posted by August 31, 2018
Programming >> Proof of Concept (POC)
How to Delete Files or Empty Trash From Your Google Drive with your IBM i and RPG/ILE How to Delete Files or Empty Trash From Your Google Drive with your IBM i and RPG/ILE
Posted by July 24, 2018
BVSTools >> BVSTools Software Discussion >> GreenTools for G Suite (Google Apps) (G4G) Specific Discussion

Reply




Copyright 1983-2019 BVSTools
GreenBoard(v3) Powered by the eRPG SDK, MAILTOOL Plus!, GreenTools for Google Apps, jQuery, jQuery UI, BlockUI, CKEditor and running on the IBM i (AKA AS/400, iSeries, System i).