ABAP 7.4: SHIFT, places calculated

[ralf_wenzel_heuristika]

Hi,

I want to re-design the following coding sequence:

      CREATE DATA ltype TYPE LINE OF (tabname).
       ASSIGN ltype->* TO FIELD-SYMBOL(<ltype>).
       typedescr = cl_abap_typedescr=>describe_by_data( <ltype> ).
       tabname = typedescr->absolute_name.
       SHIFT tabname:
         LEFT UP TO '=',
         LEFT BY 1 PLACES.

tabname contains i. e.  '/TYPE=MARA', I need the table name MARA. The double-shift bothers me. I'd like to do something like this:

tabname = shift_left( shift_left( val = tabname places = find( val = typedescr->absolute_name sub = '=' ) ) places = 2 ).

(wich means: find the '=' in absolute_name, shift to this char, shift 2 places more, the result is the table's name, i. e. MARA).

What I am doing wrong?

[ChristianGünter]

Hi Ralf,

may i suggest you another solution?

I would solve this problem with a regular expression.

Something like this:

" submatches MARA in /TYPE=MARA
FIND FIRST OCCURRENCE OF REGEX '\/.*=(.*)' IN tabname
           SUBMATCHES DATA(raw_type).

I know some people find them daunting, but once you mastered them it's quite a powerful tool in your toolbox.

Regards Christian

[ralf_wenzel_heuristika]

Christian Guenter wrote:

Hi Ralf,

may i suggest you another solution?

Only, if the result is ONE coding line

[nomssi]

rv_name = substring_after( val = tab_name regex = '=' ).

JNN

[ralf_wenzel_heuristika]

bing bing bing - you won!

Thanks, I didn't know "substring after" at all!

[horst_keller]

Time to have a look at predefined functions ...

[horst_keller]

DEMO_REGEX_TOY ...

[rdiger_plantiko2]

Good and simple.

Remark (in all modesty): I would use sub = `=` instead of regex = `=`, since I tend to avoid huge engines if not needed.

[Former Member]

Could also use:

REPLACE '/TYPE=' in tabname WITH ''.

[former_member183073]

result_tab TYPE LINE OF match_result_tab

FIND FIRST OCCURRENCE OF '=' in tabname RESULTS result_tab.

result_tab-offset = result_tab-offset + 1.

SHIFT tabname LEFT BY result_tab-offset PLACES.

[glensimpson]

Hi Ralf

I'm a bit late to the party here but... can't you just use method GET_RELATIVE_NAME instead of attribute ABSOLUTE_NAME? The method already strips the '/TYPE=' part for you.

Regards

Glen

[rdiger_plantiko2]

That's definitively the best solution!

[SuhaSaha]

Similar to the OP, I too tried to build my own solution using RegEx but then GET_RELATIVE_NAME( ) caught my eye

[ralf_wenzel_heuristika]

Glen Simpson wrote:

Hi Ralf

I'm a bit late to the party here but... can't you just use method GET_RELATIVE_NAME instead of attribute ABSOLUTE_NAME? The method already strips the '/TYPE=' part for you.

Regards
Glen

I tried this, but I got some cases, which does not work. Don't ask me, which cases, it's month ago...