topic Re: Find pattern in a string in ABAP in Application Development and Automation Discussions

Find pattern in a string in ABAP

former_member383962 — Thu, 31 Jan 2019 09:47:07 GMT

Hello Experts,

I get an i_date with the following value from the table

ex: i_date = 'MM/DD/YYYY'. note: it can be changed by the user.

And o_date = '01/01/2019'.

How to find the patterns are matched or not.

I tried the below code, but I didn' t get my output.


TABLES: map_rul.

data: i_date type string,
      o_date type string.


   o_date = '01/01/2019'.

select SINGLE low from map_rul into i_date where context = 'LOAD' and code = 'FORMAT'.

  write:/ 'Table date format:',i_date.
* Note: i_date value is 'MM/DD/YYYY'.

 if o_date cp i_date.
     WRITE: / 'Pattern matched'.
  else.
    write: / 'no pattern matched'.
ENDIF.

My code valuates the pattern and its value.

i just want to compare the pattern not a value.

any suggestions please...?

Thanks in advance

Re: Find pattern in a string in ABAP

matt — Thu, 31 Jan 2019 10:21:28 GMT

Have you read the ABAP help on CP? Does it anywhere say that you can use MM/DD/YY as a pattern? No - it doesn't. Always read the abap help if you don't know what a keyword does - don't guess and hope. You'll save time.

You could use the matches function with a suitable regex. Probably if you search on the net for a date matching regex, you'll find it.

Re: Find pattern in a string in ABAP

Former Member — Thu, 31 Jan 2019 13:07:47 GMT

Or even Find with a regular expression.

Re: Find pattern in a string in ABAP

BaerbelWinkler — Thu, 31 Jan 2019 17:22:49 GMT

To add to Matt's and Richard's mentions of regex (regular expression): check out program DEMO_REGEX_TOY in SE38 and play with the options. It comes with the documentation for what all - a lot! - is possible with regex. You can then use the demo-program and play with what you'd like to check.

Re: Find pattern in a string in ABAP

monalisa_biswal — Thu, 31 Jan 2019 20:50:04 GMT

You can refer code in FM DATE_CHECK_PLAUSIBILITY and write your own logic for checking date formats.

Re: Find pattern in a string in ABAP

DoanManhQuynh — Fri, 01 Feb 2019 00:49:22 GMT

A simple regex:

\d{1,2}/\d{1,2}/\d{4}

Re: Find pattern in a string in ABAP

former_member596005 — Fri, 01 Feb 2019 11:06:20 GMT

i think Irrespective of comparing you can get your desired pattern by using certain function modules so , when user enters in any format the code in your prog can convert into desired format so comparison may not required.

For format conversion there are lot of FM available u can check on google or go on this thread

https://archive.sap.com/discussions/thread/387802

Re: Find pattern in a string in ABAP

former_member383962 — Wed, 06 Feb 2019 12:51:31 GMT

Thanks for all...

Issue is solved...