Mapping text in IDOC to IDOC scenario

Question

Hi,
I have to map the source tdline field of IDOC segment E1EDPT1 to target IDOC Tdline field. Currently few tdline brings more than 31 chars but target should have only 31 and if it's more than 31 should roll over to next line.
I can able to truncate 31 chars using substring and if coneditions, but chars from 31 to rest couldnt be mapped, I tried a duplicate subtree in target and didnt work, used global variables to store the remainins but still didnt work.
Any suggestion would be greatly appreciated.
Thanks,
Menaga

Answer 1

Menaga,
Create a udf with name addnode and Queue as  cache. Have one parameter as input:
Imports:  java.;*
Add this code:
for (int i=0; i<input.length; i++)
String str=input<i>;
while(str.length()>31)
result.addValue(str.substring(0,31));
str=str.substring(31,str.length());
result.addValue(str);
Now map like this:
For e1edkt2:
tdline(change context to idoc) --> addnode udf --> e1edkt2
For tdline:
tdline --> removecontext --> addnode --> splitbyvalue --> tdline
Regards,
---Satish