【ABAP系列】ABAP CL_ABAP_CONV_IN_CE

公众号： SAP Technical

本文作者： matinal

原文出处： http://www.cnblogs.com/SAPmatinal/

原文链接： 【ABAP系列】ABAP CL_ABAP_CONV_IN_CE

 

 

前言部分

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正文部分

Conversion

either CREATE + CONVERT

Error rendering macro 'code': Invalid value specified for parameter 'lang'

DATA conv TYPE REF TO cl_abap_conv_in_ce.
  DATA buffer(4) TYPE x.
  DATA text(100) TYPE c.
  buffer = '41424332'. "bytes represent ABC2 in UTF-8
  conv = cl_abap_conv_in_ce=>create(
        encoding = 'UTF-8' ).
  conv->convert(
        EXPORTING input = buffer
        IMPORTING data = text ).
  ASSERT text = `ABC2`.

or CREATE + READ + SKIP_C (buffer of bytes with a pointer)

Error rendering macro 'code': Invalid value specified for parameter 'lang'

DATA buffer(5) TYPE x.
  DATA conv TYPE REF TO cl_abap_conv_in_ce.
  DATA text(100) TYPE c.
  buffer = '4142433235'. "bytes represent ABC25 in UTF-8
  conv = cl_abap_conv_in_ce=>create(
         encoding = 'UTF-8'
         input = buffer ).
  CALL METHOD conv->read(
    EXPORTING n    = 2
    IMPORTING data = text ).
  ASSERT text = `AB`.
  CALL METHOD conv->skip_c(
    EXPORTING n    = 1 ).
  CALL METHOD conv->read(
    EXPORTING n    = 2
    IMPORTING data = text ).
  ASSERT text = `25`.

UCCP: converts a unicode code point (hexa representation) into a character

Unique parameter must be a string of exactly 4 characters, in hexadecimal representation (0 to 9, and A to F).

Error rendering macro 'code': Invalid value specified for parameter 'lang'

DATA c2 TYPE c LENGTH 2.
c2 = cl_abap_conv_in_ce=>uccp( '0041' ).
ASSERT c2 = 'A'.

Error rendering macro 'code': Invalid value specified for parameter 'lang'

DATA c4 TYPE c LENGTH 4.
DATA c2 TYPE c LENGTH 2.
c4 = '0041'.
c2 = cl_abap_conv_in_ce=>uccp( c4 ).
ASSERT c2 = 'A'.

Error rendering macro 'code': Invalid value specified for parameter 'lang'

DATA x2 TYPE x LENGTH 2.
x2 = '0041'.
c2 = cl_abap_conv_in_ce=>uccp( x2 ).
ASSERT c2 = 'A'.

UCCPI: converts a unicode code point into a character

Unique parameter must be an integer.

Error rendering macro 'code': Invalid value specified for parameter 'lang'

DATA c2 TYPE c LENGTH 2.
c2 = cl_abap_conv_in_ce=>uccpi( 65 ).
ASSERT c2 = 'A'.

来源：oschina

链接：https://my.oschina.net/u/4348185/blog/3377251