Find All Occurrences always fails within loop

Question

Dear forumers,
There's this strange problem that requires a fix.
Finding all occurences of '#' works fine here:-
REPORT  zz_test.
DATA: lv_text TYPE string,
      ls_result TYPE match_result,
      et_release type table of yytc_release,
      lt_result  TYPE match_result_tab.
lv_text = '"RFC-1234#Create ""Payroll"" under NL directory"'.
  FIND ALL OCCURRENCES OF REGEX '#'
            IN lv_text
            RESULTS lt_result IGNORING CASE IN CHARACTER MODE.
  IF sy-subrc = 0.   " SY-SUBRC is always 0
    READ TABLE lt_result INTO ls_result INDEX 1.
    WRITE :'Offset: ' .
    WRITE: ls_result-offset .
    WRITE: lv_text+00(ls_result-offset).
  ENDIF.
But it always fails here, within a loop at an internal table:-
SELECT * .... INTO TABLE it_jira ...
LOOP AT it_jira ASSIGNING <jira>.
  <release>-summary = <jira>-summary.
  IF <release>-type CS 'Subtask'.
    " <release>-summary is of data type CHAR255
    PERFORM get_subtask USING <release>-summary.  
  ENDIF.
ENDLOOP.
FORM get_subtask  USING    pv_summary TYPE yytc_release-summary.
  DATA:
    lv_string  TYPE char255,
    lv_final   TYPE char255,
    lv_summary TYPE string,
    lv_strlen  TYPE i,
    lt_result  TYPE match_result_tab.
  lv_string = pv_summary.     " LV_STRING = '"RFC-1234#Create ""Payroll"" under NL directory"''
  CONDENSE lv_string.
  lv_strlen = STRLEN( lv_string ).
  lv_strlen = lv_strlen - 1.
  IF lv_string+0(1) = '"' AND lv_string+lv_strlen(1) = '"'.
    lv_strlen = lv_strlen - 1.
    WRITE lv_string+1(lv_strlen) TO lv_final+1(254).
  ENDIF.
  lv_summary = lv_final.
"  FIND ALL OCCURRENCES OF '#'
"      IN lv_summary
"    RESULTS lt_result IGNORING CASE.   * SY-SUBRC is always 4 here too
  FIND ALL OCCURRENCES OF REGEX '#'
      IN lv_summary
    RESULTS lt_result IGNORING CASE IN CHARACTER MODE.
  IF sy-subrc = 0.    " SY-SUBRC is always 4 here - why?!  :(
  ENDIF.
  CLEAR: lv_string,
         lt_result.
ENDFORM.                    " GET_SUBTASK
Only when the string LV_SUMMARY is edited from within the debugger (add space to the string prefix, etc), the SY-SUBRC will be 0 and there'll be data found in LT_RESULT.
How can I resolve this issue? Please do help. Thanks.

Answer 1

I think the subtle difference is that in your first example the character is actually '#' whereas in the second example it is actually another (unprintable)value such-as line-feed and only APPEARS to be '#'.
You must find out what the value in question is(will it always be the same value?) and then replace that instead of '#'.