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Chapter 6 For MF only: Micro Focus Extensions for Double-Byte Character
Support
The Micro Focus Extensionsfor Double-Byte Character Support is the
additional facility provided by Micro Focus as the programming solution
for environments using 16-bit coding schemes (DBCS). This facility
incorporates every implementation of Japanese language support from
earlier Micro Focus products.
If you wish your program to comply with the Multivendor Integration
Architecture(MIA) Standard or to be compatible with IBM VS COBOL II,
COBOL/370 or IBM SAA you should use the DBCS Support defined earlier in
the chapter Double-Byte Character Set Support.
8-bit codes used by your COBOL system are referred to as the Single-Byte
Character Set(SBCS). 16 bit codes, each character occupying a pair of
adjacent bytes are referred as the Double-Byte Character Set (DBCS).
Micro Focus Extensions for Double-Byte Character Support is enabled by
the NCHARorJAPANESEdirectives. For further details of these directives
see your COBOL System Reference.
When the Micro Focus Extensions for Double-Byte Character Support is
enabled, the support defined in the chapter Double-Byte Character Set
Support is modified. In particular, in this chapter MOVE operations from
SBCS to DBCS data items perform SBCS to DBCS conversion.
The classes NCHARand JAPANESE, and NCHAR-EDITED and JAPANESE-EDITED are
synonyms and interchangeable. In this chapter, reference to the class or
category NCHARor the category NCHAR-EDITED is equivalent to the class or
category JAPANESEor the category JAPANESE-EDITED respectively.