ABAP 7.02 New Features

New String Functions

Johann Fößleitner, Cadaxo GmbH

https://twitter.com/foessleitnerj

Table of Contents

➤ cmax/cmin – character like extreme value function

➤ condense – condensation function

➤ concate_lines_of – linking function

➤ escape – escape function

➤ insert – insert function

➤ match – match function

➤ repeat – repeat function

➤ replace – replace function

➤ reverse – reverse function

➤ shift_left/shift_right – shift function

➤ substring – substring function

➤ to_upper/to_lower/… - upper and lower case function

➤ translate – translate function

➤ distance – distance function

cmax/cmin – character like extreme value

function

• comparison up to a value of 9 character like arguments

• result is the smallest (cmin) or the biggest (cmax) delivered

character

• comparison is used codepage-based

cmax/cmin – character like extreme value

function

l_result = cmax( val1 = 'AAAC' val2 = 'AAAB' val3 = 'AAAD' ).

result: AAAD l_result = cmax( val1 = 'AAAC' val2 = 'AZAB' val3 = 'AAAD' ).

result: AZAB l_result = cmin( val1 = 'AAAC' val2 = 'AAAB' val3 = 'AAAD' ).

result : AAAB l_result = cmin( val1 = 'AAAC' val2 = '0AAC' val3 = 'AAAD' ).

result : 0AAC

condense – condensation function

• condensates the content of a string

• provides more possibilities than the ABAP Command

Condense

• removes leading and ending character

l_string = condense( val = ‘XXXabcXXXdefXXX‘ del = ‘X‘ from = ‘X‘ to = ‘X‘ ).

result: abcXdef

concat_lines_of – linking function

• links lines from an intern table in a string

• additive sep enables the seperation by a seperator

L_string = concate_lines_of( table = tab sep = ‘;‘ ).

escape – escape function

• enables the rule-based replacing of a string with escape

symbols

• usable rules are defined as constants in

CL_ABAP_FORMAT

escape – escape function

DATA l_string0 TYPE string.

DATA l_string1 TYPE string.

l_string0 = 'http://www.cadaxo.com'.

l_string1 = escape( val = l_string0 format = cl_abap_format=>e_url_full ).

WRITE: / l_string0, / l_string1.

result:

http://www.cadaxo.com

http%3A%2F%2Fwww.cadaxo.com

insert – insert function

• insert a string at any position of another string

L_string = ‘NewsABAP‘.

L_result = insert( val = l_string sub = ‘ in ‘ off = 5 ).

Write: l_string.

result:

news in ABAP

match – match function

• searches for a text with a specific Regex accordance

• more information of Regex can be gathered from SAP online

documentation

repeat – repeat function

• generates a string through repitition of another string

l_string = repeat( val = ‘ABC‘ occ = 5 ).

write: l_string.

result:

ABCABCABCABCABC

replace – replace function

• replaces a section of a string

• section can be determined by an offset-/length or by Regex

l_result = replace( val = 'ABAP xx GOOD' off = 6 len = 0 with = 'IS' ).

result: ‘ABAP xISx GOOD‘

l_result = replace( val = 'ABAP xx GOOD' off = 4 len = 4 with = 'IS' ).

result: ‘ABAPISGOOD‘

reverse – reverse function

• reverses a complete string

L_string = ‘PABA‘.

L_string = reverse( l_string ).

result: ABAP

PS: If you know a useful application of this function, please let me know!

substring, substring_... – substring function

• investigation of a section from a given character amount

l_result = substring( val = 'ABCDEFGH' off = 3 len = 4 ).

result: ‘DEFG‘ l_result = substring_from( val = 'ABCDEFGH' sub = 'DEF' ).

result: ‘DEFGH‘ l_result = substring_after( val = 'ABCDEFGH' sub = 'DEF' ).

result: ‘GH‘ l_result = substring_before( val = 'ABCDEFGH' sub = 'DEF' ).

result: ‘ABC‘ l_result = substring_to( val = 'ABCDEFGH' sub = 'DEF' ).

result: ‘ABCDEF‘

to_upper, to_lower, to_mixed, from_mixed

upper and lower case function

• to_upper/to_lower conforms the command TRANSLATE

TO UPPER/LOWER CASE

• to_mixed transforms all letters from the second position on

in lower cases

• from_mixed inserts from left to right from the second

position on the first declared character from the additive sep

• further additives are case and min

to_upper, to_lower, to_mixed, from_mixed

upper and lower case function

l_result = to_mixed( val = 'CADAXO GMBH' ).

result: ‘Cadaxo gmbh‘

distance – distance function

• investigates the edit distance (Levenshtein-distance) of to

strings • minimal amount of insert, delete or replace processes to get from string

1 to string 2

l_int = distance( val1 = 'CADAXO GMBH' val2 = 'ADAXOGMBH' ).

result: 2 („C“ and a blank have to be inserted)

l_int = distance( val1 = 'ABCD' val2 = 'EFGH' ).

result: 4 (all characters have to be replaced)

http://de.wikipedia.org/wiki/Levenshtein-Distanz

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