ABAP Addition 1 ... ${RESPECTING$|IGNORING$} CASE 2 ... MATCH COUNT mcnt 3 ... MATCH OFFSET moff 4 ... MATCH LENGTH mlen 5 ... RESULTS result_tab$|result_wa 6 ... SUBMATCHES s1 s2 ...
What does it do? These additions control the FIND statement and provide advanced evaluation options. The addition CASE can be used to specify whether the search is case-sensitive. The additions MATCH, SUBMATCHES, and RESULTS can be used to determine the number, position, and length of the sequences found.
ABAP Addition
What does it do? This addition is only allowed for character string processing. It specifies whether the search in pattern and dobj is case-sensitive. If RESPECTING CASE is specified, the search is case-sensitive and if IGNORING CASE is used, it is not. If neither of these additions is specified, RESPECTING CASE is used implicitly. If a regular expression is passed as an object of class CL_ABAP_REGEX for pattern, this addition is not allowed. Instead, the properties of the object are respected by the search.
ABAP_EXAMPLE_VX5 The first search finds the letter a, the second finds the letter A. ABEXA 00270 ABAP_EXAMPLE_END
ABAP Addition
What does it do? If the search pattern pattern is found in the search range, the MATCH COUNT addition saves the number of occurrences in mcnt . The following can be specified for mcnt:
An existing variable that expects the data type i.
An inline declaration DATA(var) or FINAL(var). The declared variable has the data type i. If FIRST OCCURRENCE is used, the value after a successful search is always 1. If the search is not successful, mcnt is set to 0.
ABAP_EXAMPLE_VX5 Check whether the numbers of opening and closing tags in an HTML file match. ABEXA 00271 ABAP_EXAMPLE_END
ABAP Addition
What does it do? If the search pattern pattern is found in the search range, the MATCH OFFSET addition saves the offset of the last occurrence with reference to the dobj operand in moff. The following can be specified for moff:
An existing variable that expects the data type i.
An inline declaration DATA(var) or FINAL(var). The declared variable has the data type i. If FIRST OCCURRENCE is used, the result is the offset of the first occurrence. If the search is not successful, moff retains its previous value or remains initial.
Latest notes: The system field sy-fdpos is not filled by FIND. NON_V5_HINTS ABAP_HINT_END
ABAP Addition
What does it do? If the search pattern pattern is found in the search range, the MATCH LENGTH addition saves the length of the last substring found in mlen. The following can be specified for mlen:
An existing variable that expects the data type i.
An inline declaration DATA(var) or FINAL(var). The declared variable has the data type i. If FIRST OCCURRENCE is used, the result is the length of the first occurrence. If the search is not successful, mlen retains its previous value or remains initial.
ABAP_EXAMPLE_VX5 Determination of the first string of digits within a string and its output. ABEXA 00272 ABAP_EXAMPLE_END
ABAP Addition
What does it do? If the search pattern pattern is found in the search range, the RESULTS addition saves the offsets of the occurrences, the lengths of the substrings found, and information about the subgroup registers of regular expressions either in an internal table result_tab or in a structure result_wa. The internal table or structure can be specified as follows:
An existing internal table with the table type MATCH_RESULT_TAB with the line type MATCH_RESULT from the ABAP Dictionary is specified for result_tab. A structure of the type MATCH_RESULT from the ABAP Dictionary is specified for result_wa
An inline declaration DATA(var) or FINAL(var) is specified after RESULTS. If ALL OCCURRENCES is used, an internal table of the type MATCH_RESULT_TAB is declared. If FIRST OCCURRENCE is used, a structure of the type MATCH_RESULT is declared. When an internal table is used, it is initialized before the search starts and a line is inserted into the internal table for each match found. If a structure is used, it is assigned the values of the last occurrence. If FIRST OCCURRENCE is used and an internal table is specified, exactly one line is inserted into this table if the search is successful. The line type or structure type MATCH_RESULT has the following components:
OFFSET of type INT4 for storing the offset of the substring
LENGTH of type INT4 for storing the length of the substring
SUBMATCHES of table type SUBMATCH_RESULT_TAB with the line type SUBMATCH_RESULT for storing the offset and length of the substring of the current occurrence, which are stored in the subgroup registers of a regular expression The lines from result_tab are sorted according to the OFFSET and LENGTH columns. An additional component LINE is only relevant for the FIND IN TABLE variant. After an unsuccessful search, the content of the internal table result_tab is empty, whereas the structure result_wa preserves its content.
Latest notes: The RESULTS addition is particularly useful when used with the ALL OCCURRENCES addition if an internal table is specified, and with the FIRST OCCURRENCE addition if a structure is specified. NON_V5_HINTS ABAP_HINT_END
ABAP_EXAMPLE_VX5 The following search for a regular expression finds the two substrings ab and ba at offset 0 and 2 and fills the internal table result_tab accordingly with two lines. Since the regular expression contains three subgroups, the submatches component contains three lines. The first line of submatches relates to the outer parenthesis, the second line relates to the first inner parenthesis, and the third line relates to the second inner parenthesis. The first and second lines contain the offset and length of the first occurrence, and the third line remains undefined. The first and third lines contain the offset and length of the second occurrence, and the second line remains undefined. ABEXA 00273 ABAP_EXAMPLE_END
ABAP Addition
What does it do? This addition can be used only if a regular expression is used in pattern. The current content of the subgroup register of the regular expression is written to s1, s2 , ... for the current occurrence. The operands can be specified as follows:
As existing variables that expect a character-like type.
As an inline declaration DATA(var) or FINAL(var), where a variable of type string is declared. When ALL OCCURRENCES is used, the last occurrence is evaluated. If more operands s1, s2, ... than subgroups are listed, the surplus variables of fixed length are filled with blanks and strings are initialized. If fewer operands s1, s2 , ... than subgroups are listed, the surplus subgroups are ignored.
ABAP_EXAMPLE_VX5 The regular expression after PCRE has two subgroups. The search finds the substring at offset 0 with length 14. The content of the subgroup registers is Hey and my. ABEXA 00274 ABAP_EXAMPLE_END
