Fujitsu BS2OSD Manuale Utente
Page 22
2.17 New functions in BS2000/OSD V6.0B with
Correction Package 1/2007
2.17.1 Support for Unicode in BS2000/OSD via XHCS-SYS
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Due to new EU directives, the previously supported character sets
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are no longer sufficient in the medium term. As of BS2000/OSD-BC
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V6.0B (correction level B62), support for Unicode supplements the
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EBCDIC character sets previously available in BS2000/OSD systems
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with the additional characters required in the European language
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theater. This is done by using selected Unicode code points in
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addition to the previous EBCDIC variants.
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Unicode is an international standard in which a digital code is
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defined for each character of all known languages over the long
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term. You will find information on Unicode in the Internet under
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http://www.unicode/org/
.
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The basis for the Unicode support in BS2000/OSD is extensions in
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the XHCS-SYS V2.0 subsystem, the central source of information
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about the coded character sets available in the system.
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XHCS-SYS V2.0 is a component part of openNetServer V3.2.
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In addition to the previously supported 8 bit ISO codes ISO8859-
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1/2/3/4/5/7/9/15 and the EBCDIC codes belonging to them, XHCS-SYS
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V2.0 also supports the Unicode formats UTF-8, UTF-16 (2 byte,
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BS2000) and UTF-E in BS2000, that follows UTF-EBCDIC from IBM.
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XHCS-SYS V2.0 also includes conversion tables from the supported
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8 bit ISO codes to Unicode and vice versa. In addition to the
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characters supported in these ISO codes, XHCS-SYS supports around
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70 further characters from the Unicode character set, e.g. spe-
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cial characters such as those used in public administrations
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Using Unicode in the system
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To support using Unicode in BS2000/OSD systems, the character
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sets used in the system are extended by additional characters and
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a programming and runtime environment are provided to extend ex-
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isting applications with Unicode fields. It is thereby assumed
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that only a few fields, mainly name and address fields, have to
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be converted to Unicode.
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The Unicode support is provided on the basis of the existing
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products. Unicode-based characters are allowed for texts to be
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processed but not for field or container names.
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The product-specific rules for commands and object names remain
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as they were.
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Further preparations must be made for using Unicode beyond updat-
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ing the system base, the system level applications and the pro-
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gramming environment.
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These include:
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- All data/files must be brought into a defined,
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consistent state.
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- The CCS (Coded Character Sets) names of all data must be
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consistent since the CCS name is a central component for
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handling the data.
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- Applications must be extended by the additional Unicode fields
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that have to be processed.