Скажите команду или функцию, котороя возращает номер позиции символа

data: fraza(6).

fraza = 'TESTOV'.

if fraza CS 'S'.
* нумер позиции начинается с нуля. Если буква повторяется, то... * *проблема
write:/ sy-fdpos.
endif.

SEARCH f FOR g .
Additions:
1. ... ABBREVIATED
2. ... STARTING AT n1
3. ... ENDING AT n2
4. ... AND MARK

Effect
Searches the contents of f for the string in the field g. This string can have any of the following formats:

'str'
a character string (trailing spaces are ignored)
'.str.'
any character string between the periods
'*str'
a word ending with "str", including "str"
'str*'
a word beginning with "str", including "str"
...
The return code is set as follows:
SY-SUBRC = 0:
The search string g was found in the field f. SY-FDPOS contains the offset of the found string or the found word within the field.
SY-SUBRC = 4:
The search string g was not found in the field f.