Update
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danrega
@@ -42,7 +42,8 @@
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- [Escaping Special Characters](#escaping-special-characters)
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- [Excursions](#excursions)
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- [Comparison Operators for Character-Like Data Types in a Nutshell](#comparison-operators-for-character-like-data-types-in-a-nutshell)
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- [Miscellaneous Classes for String Processing](#miscellaneous-classes-for-string-processing)
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- [Classes for String Processing](#classes-for-string-processing)
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- [Character String and Byte String Processing with ABAP Statements](#character-string-and-byte-string-processing-with-abap-statements)
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- [Executable Example](#executable-example)
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@@ -537,8 +538,17 @@ CONCATENATE s1 s2 INTO s3 SEPARATED BY `#`. "ABAP#abap ABAP
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"strings. The ones of variable length strings are respected by default.
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CONCATENATE 'a ' 'b ' 'c ' INTO DATA(ch) RESPECTING BLANKS. "'a b c '
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"Concatenating lines of internal tables into a string
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CONCATENATE LINES OF itab INTO t SEPARATED BY ` `.
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"Concatenating lines of internal tables with character-like line type into a string
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DATA(itab) = VALUE string_table( ( `abc` ) ( `def` ) ( `ghi` ) ).
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"abcdefghi
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CONCATENATE LINES OF itab INTO DATA(conc_tab1).
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"abc def ghi
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CONCATENATE LINES OF itab INTO DATA(conc_tab2) SEPARATED BY ` `.
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"abc,def,ghi
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CONCATENATE LINES OF itab INTO DATA(conc_tab3) SEPARATED BY `,`.
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"Using concat_lines_of
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s1 = concat_lines_of( table = itab ). "Without separator
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@@ -2058,7 +2068,7 @@ IF s8 NP `*c#D*`. ... "false; sy-fdpos: 2
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<p align="right"><a href="#top">⬆️ back to top</a></p>
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### Miscellaneous Classes for String Processing
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### Classes for String Processing
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As also covered in the [Released ABAP Classes](22_Released_ABAP_Classes.md) cheat sheet, the following list shows a selected set of classes that support string processing.
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- `CL_ABAP_CHAR_UTILITIES`: As previously mentioned, this class provides utilities for string processing, such as attributes that represent new lines and horizontal tabs.
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@@ -2234,6 +2244,171 @@ As also covered in the [Released ABAP Classes](22_Released_ABAP_Classes.md) chea
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<p align="right"><a href="#top">⬆️ back to top</a></p>
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### Character String and Byte String Processing with ABAP Statements
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- Several ABAP statements include the `IN CHARACTER MODE` and `IN BYTE MODE` additions.
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- These additions determine whether operations process character strings or byte strings.
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- If neither option is specified, the default is character string processing (i.e. `IN CHARACTER MODE`).
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- Byte string processing with the `IN BYTE MODE` addition is supported by the following ABAP statements: `CONCATENATE`, `FIND`, `REPLACE`, `SHIFT`, `SPLIT`.
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- In byte string processing, the data objects used must be byte-like. For character string processing, only character-like data objects are allowed.
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The following code snippet explores various statements with the `IN CHARACTER MODE` and `IN BYTE MODE` additions.
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```abap
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DATA off TYPE i.
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DATA(abc_str) = `abc def ghi jkl mno pqr stu vwx yz`.
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DATA(copy_str) = abc_str.
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"-----------------------------------------------------------------------------
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"------------------------ FIND and REPLACE statements ------------------------
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"-----------------------------------------------------------------------------
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"------------------------ IN CHARACTER MODE addition ------------------------
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"Searching for the first blank in the string
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"3
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FIND ` ` IN abc_str IN CHARACTER MODE MATCH OFFSET off.
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"The following example is the same as the previous as the IN CHARACTER MODE
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"addition is optional. The FIRST OCCURRENCE OF addition is also optional.
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"Just using FIND without FIRST OCCURRENCE OF means searching for the first
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"occurrence by default.
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"3
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FIND FIRST OCCURRENCE OF ` ` IN abc_str MATCH OFFSET off.
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"Searching for all blanks in the string
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FIND ALL OCCURRENCES OF ` ` IN abc_str IN CHARACTER MODE RESULTS DATA(res).
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DATA(offsets_of_findings) = concat_lines_of(
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table = VALUE string_table( FOR wa IN res ( condense( val = CONV string( wa-offset ) to = `` ) ) ) sep = `, ` ).
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"3, 7, 11, 15, 19, 23, 27, 31
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"Replacing the first blank in the string
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"abc#def ghi jkl mno pqr stu vwx yz
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REPLACE ` ` IN abc_str WITH `#` IN CHARACTER MODE.
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abc_str = copy_str.
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"Replacing all blanks in the string
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"abc#def#ghi#jkl#mno#pqr#stu#vwx#yz
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REPLACE ALL OCCURRENCES OF ` ` IN abc_str WITH `#` IN CHARACTER MODE.
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abc_str = copy_str.
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"------------------------ IN BYTE MODE addition ------------------------
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"Converting to xstring
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"6162632064656620676869206A6B6C206D6E6F20707172207374752076777820797A
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DATA(abc_xstr) = cl_abap_conv_codepage=>create_out( )->convert( abc_str ).
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"20
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DATA(blank_xstr) = cl_abap_conv_codepage=>create_out( )->convert( ` ` ).
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"23
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DATA(repl_xstr) = cl_abap_conv_codepage=>create_out( )->convert( `#` ).
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DATA(copy_xstr) = abc_xstr.
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"Searching for the first byte that represents a blank in the UTF-8 code page
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"3
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FIND blank_xstr IN abc_xstr IN BYTE MODE MATCH OFFSET off.
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FIND ALL OCCURRENCES OF blank_xstr IN abc_xstr IN BYTE MODE RESULTS res.
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"3, 7, 11, 15, 19, 23, 27, 31
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DATA(offsets_of_findings_xstr) = concat_lines_of(
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table = VALUE string_table( FOR wa IN res ( condense( val = CONV string( wa-offset ) to = `` ) ) ) sep = `, ` ).
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"Replacing the first byte that represents a blank in the UTF-8 code page
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"6162632364656620676869206A6B6C206D6E6F20707172207374752076777820797A
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REPLACE blank_xstr IN abc_xstr WITH repl_xstr IN BYTE MODE.
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abc_xstr = copy_xstr.
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"Replacing all bytes that represent a blank in the UTF-8 code page
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"6162632364656623676869236A6B6C236D6E6F23707172237374752376777823797A
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REPLACE ALL OCCURRENCES OF blank_xstr IN abc_xstr WITH repl_xstr IN BYTE MODE.
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"-----------------------------------------------------------------------------
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"--------------------------- CONCATENATE statements --------------------------
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"-----------------------------------------------------------------------------
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DATA(part_str1) = `abc`.
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DATA(part_str2) = `def`.
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"abcdef
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CONCATENATE part_str1 part_str2 INTO DATA(concat_str) IN CHARACTER MODE.
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"abc/def
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CONCATENATE part_str1 part_str2 INTO concat_str SEPARATED BY `/` IN CHARACTER MODE.
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"Same as above
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CONCATENATE part_str1 part_str2 INTO concat_str.
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CONCATENATE part_str1 part_str2 INTO concat_str SEPARATED BY `/`.
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DATA(part_xstr1) = cl_abap_conv_codepage=>create_out( )->convert( part_str1 ).
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DATA(part_xstr2) = cl_abap_conv_codepage=>create_out( )->convert( part_str2 ).
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DATA(sep_xstr) = cl_abap_conv_codepage=>create_out( )->convert( `/` ).
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"616263646566
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CONCATENATE part_xstr1 part_xstr2 INTO DATA(concat_xstr) IN BYTE MODE.
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"abcdef
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DATA(concat_xstr_converted) = cl_abap_conv_codepage=>create_in( )->convert( concat_xstr ).
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"6162632F646566
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CONCATENATE part_xstr1 part_xstr2 INTO concat_xstr SEPARATED BY sep_xstr IN BYTE MODE.
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"abc/def
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concat_xstr_converted = cl_abap_conv_codepage=>create_in( )->convert( concat_xstr ).
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"Creating a table of type xstring
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DATA(xstr_table) = VALUE xstring_table( ( part_xstr1 ) ( part_xstr2 ) ).
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"616263646566
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CONCATENATE LINES OF xstr_table INTO DATA(concat_xstr_tab) IN BYTE MODE.
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"abcdef
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DATA(concat_xstr_tab_converted) = cl_abap_conv_codepage=>create_in( )->convert( concat_xstr_tab ).
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"-----------------------------------------------------------------------------
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"------------------------------- SHIFT statements ----------------------------
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"-----------------------------------------------------------------------------
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DATA(str) = `abcdef`.
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DATA(copy) = str.
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"bcdef
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SHIFT str IN CHARACTER MODE.
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str = copy.
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"Same as
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SHIFT str.
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str = copy.
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"616263646566
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DATA(xstr) = cl_abap_conv_codepage=>create_out( )->convert( str ).
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"6263646566
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SHIFT xstr IN BYTE MODE.
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"-----------------------------------------------------------------------------
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"------------------------------- SPLIT statements ----------------------------
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"-----------------------------------------------------------------------------
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str = `abc def`.
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"`abc` / `def`
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SPLIT str AT space INTO DATA(str1) DATA(str2) IN CHARACTER MODE.
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SPLIT str AT space INTO TABLE DATA(tab_str) IN CHARACTER MODE.
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"Same as above
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SPLIT str AT space INTO str1 str2.
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SPLIT str AT space INTO TABLE tab_str.
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"61626320646566
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xstr = cl_abap_conv_codepage=>create_out( )->convert( str ).
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"20
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blank_xstr = cl_abap_conv_codepage=>create_out( )->convert( ` ` ).
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"`616263` / `646566`
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SPLIT xstr AT blank_xstr INTO DATA(xstr1) DATA(xstr2) IN BYTE MODE.
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SPLIT xstr AT blank_xstr INTO TABLE DATA(xstr_tab) IN BYTE MODE.
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```
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<p align="right"><a href="#top">⬆️ back to top</a></p>
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## Executable Example
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[zcl_demo_abap_string_proc](./src/zcl_demo_abap_string_proc.clas.abap)
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