Descriptions of three subfields that are used to link field
data to other fields. These subfields are defined for most
fields in the format, and thus their descriptions are brought
together in this appendix. The subfields are included in field
level subfield lists wherever they are defined, with pointers
to this appendix.
$6 - Linkage
Data that links fields that are different script
representations of each other. Subfield $6 may contain the
tag number of an associated field, an occurrence number, a
code that identifies the first script encountered in a
left-to-right scan of the field, and an indication that the
orientation for a display of the field data is
right-to-left. A regular (non-880) field may be linked to
one or more 880 fields that all contain different script
representations of the same data. Subfield $6 is structured
as follows:
$6 [linking tag]-[occurrence number]/[script identification
code]/[field orientation code]
Subfield $6 is always the first subfield in the field.
Linking tag
Linking tag part contains the tag number of the
associated field. This part is followed immediately by a
hyphen and the two-digit occurrence number part. A
different occurrence number is assigned to each set of
associated fields within a single record. The function of
an occurrence number is to permit the matching of
the associated fields (not to sequence the fields within
the record). An occurrence number may be assigned
at random for each set of associated fields. An
occurrence number of less than two digits is right
justified and the unused position contains a zero.
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| 066 |
##$c)S |
| 110 |
2#$6880-15$a[Primary Name] |
| 270 |
##$6880-05$a[Primary Address] |
| 301 |
##$a[Hours,
Etc.] |
| 500 |
##$a[General
Note |
| 531 |
##$6880-01$a[Eligibility, Fees, Procedures Note] |
| 700 |
1#$6880-22$a[Added Entry-Personal Name] |
| 880 |
2#$6110-15/)S$a[Primary Name] |
| 880 |
##$6270-05/)S$a[Primary Address] |
| 880 |
##$6531-01/)S$a[Eligibility, Fees, Procedures
Note] |
| 880 |
1#$6700-22/)S$a[Added Entry-Personal Name]
[")S" = 29hex 53hex = Identification of the first
alternate character set that will be encountered in the
field.] |
When there is no associated field to which a field 880 is
linked, the occurrence number in subfield$6 is 00.
It is used if an agency wants to separate scripts in a
record (see Multiscript Records). The linking
tag part of subfield $6 will contain the tag that the
associated regular field would have had if it had existed
in the record.
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| 110 |
2#$6880-01$aHeading in Latin script |
| 880 |
2#$6110-01/(2/r$a[Heading in Hebrew script linked to
associated field] |
| 880 |
##$6531-00/(2/r$a[Eligibility, fees, procedures
information in Hebrew script]
[The second 880 field is not linked to an
associated field. The occurrence number is
00.] |
Occurrence number is followed immediately by a slash (/)
and the script identification code. This code
identifies the alternate script found in the field. The
following codes are used:
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Code |
Script |
| (3 |
Arabic |
| (B |
Latin |
| $1 |
Chinese, Japanese,
Korean |
| (N |
Cyrillic |
| (S |
Greek |
| (2 |
Hebrew |
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880 |
1#$6100-01/(N$a
[Heading in Cyrillic script] |
The entire field need not be in the script identified in
subfield $6. If more than one script is present in the
field, subfield $6 will contain the identification of the
first alternate script encountered in a
left-to-right scan of the field.
Note also that the script identification code is
used in field 880, subfield $6, but this data element is
not generally used for subfield $6 of the associated
regular field. In the associated field, the data is assumed
to be the primary script(s) for the record.
In a MARC record, the contents of field 880 are always
recorded in their logical order, from the first character
to the last, regardless of field orientation. For a display
of the field, the default field orientation is
left-to-right. When the field contains text that has a
right-to-left orientation, the
script identification
code is followed by a slash (/) and the field
orientation code. The MARC field
orientation
code for right-to-left scripts is the letter r. The
orientation code is only included in fields with
right-to-left orientation, since left-to-right orientation
is the default orientation in 880 fields. (See
MARC
21 Specifications for Record Structure, Character Sets, and
Exchange Media for a detailed description of field
orientation.)
Note that the orientation code is used in field
880, subfield $6, but this data element is not generally
used for subfield $6 of the associated regular field. In
the associated field, the data is assumed to be the usual
orientation of the primary script(s) for the record.
$8 - Field Link and Sequence Number
Identifies linked fields and may also propose a sequence
for the linked fields. Subfield $8 may be repeated to link
a field to more than one other group of fields. The
structure and syntax for the field link and sequence number
subfield is:
$8 [linking number].[sequence number]\[field link type]
Linking number is the first data element
in the subfield and required if the subfield is used. It is
a variable-length whole number that occurs in subfield $8
in all fields that are to be linked. Fields with the same
linking number are considered linked.
Sequence number is separated from the
linking number by a period "." and is optional. It is a
variable- length whole number that may be used to indicate
the relative order for display of the linked fields (lower
sequence numbers displaying before higher ones). If it is
used it must occur in all $8 subfields containing the same
linking number.
Field link type is separated from
preceding data by a reverse slash "\". It is a code
indicating the reason for the link and it follows the link
number, or sequence number if present. No field link types
have been defined in the MARC 21 Format for Community
Information.
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