topic Re: Write REGEX for a string pattern in Application Development and Automation Discussions

Write REGEX for a string pattern

Former Member — Wed, 18 Jun 2014 10:22:36 GMT

Hi All,

I am new to using regular expression and writing the patterns, I am looking to write a pattern for below formats and do a FIND REGEX:

A123456-01-123456789-123 and A123456-01-123456789-ABC

DATA: regex TYPE REF TO cl_abap_regex,

res TYPE match_result_tab,

text TYPE string.

CREATE OBJECT regex

EXPORTING pattern = '$.$\1'

simple_regex = 'X'

FIND ALL OCCURRENCES OF REGEX regex IN text RESULTS res.

could you help me write the pattern to check if user has entered string in formats A123456-01-123456789-123 and A123456-01-123456789-ABC

Thank you

Depp

Re: Write REGEX for a string pattern

Former Member — Wed, 18 Jun 2014 10:34:16 GMT

Try out this snippet.

DATA str TYPE string VALUE 'A123456-01-123456789-123'.

FIND REGEX '^\w\d{6}-\d{2}-\d{9}-.{3}$' IN str.

WRITE / sy-subrc.

str = 'A123456-01-123456789-ABC'.

FIND REGEX '^\w\d{6}-\d{2}-\d{9}-.{3}$' IN str.

WRITE / sy-subrc.

Re: Write REGEX for a string pattern

Former Member — Wed, 18 Jun 2014 17:01:44 GMT

It appears you wanted separate regex patterns that match the given strings.

If that is the case, '^\w\d{6}-\d{2}-\d{9}-\d{3}$' would be for the one ending with 123, and '^\w\d{6}-\d{2}-\d{9}-\w{3}$' would be for the one ending with ABC.

Re: Write REGEX for a string pattern

Former Member — Thu, 26 Jun 2014 09:57:35 GMT

Hi Manish,

First of all sorry for getting back so late..was stuck with project delivery...and Thank you for your solution. Only one scenario failed i.e., I didn't mention that the value 01 in the examples, is constant in strings A123456-01-123456789-123 and A123456-01-123456789-ABC.

which means it has to be always 01 any other value than 01 the sy-subrc should not be zero.

I will also be thankful if you could share me the document(s) which help us write the above patterns( '^\w\d{6}-\d{2}-\d{9}-\d{3}$' ; '^\w\d{6}-\d{2}-\d{9}-\w{3}$' ).

In the meanwhile I will also do some R&D with your reply to solve the failed scenario.

Regards,

Depp

Re: Write REGEX for a string pattern

Former Member — Thu, 26 Jun 2014 11:03:05 GMT

Use this snippet then.

'^\w\d{6}-01-\d{9}-.{3}$'

To learn this, you can read F1 help on REGEX keyword, play around with program DEMO_REGEX_TOY and search internet for regular expression examples.

Re: Write REGEX for a string pattern

Former Member — Wed, 02 Jul 2014 12:42:17 GMT

I'll test and come back ..:)