Class: MarcRecord

MarcRecord

new MarcRecord(marc)

Parameters:
Name Type Description
marc object

A MARC-JSON object representing a record.

Classes

MarcField

Members

format :string

MARC format ('bib', 'auth' or 'mfhd')

Type:
  • string

Methods

add_field(tag, indexopt) → {MarcField}

Creates a new (empty) MarcField object, inserts it into record BEFORE specified index. Will add in numeric order if index isn't passed.

Parameters:
Name Type Attributes Description
tag string

3-char MARC field label
index <optional>

Position at which to insert.
Returns:
Type
MarcField

ctrl(ctrlspec) → {string}

Parameters:
Name Type Description
ctrlspec string

A specifier indicating control field's tag, and optionally, a substring to select from the field data, e.g.

  • ctrl('008')
  • ctrl('008[7]') // position 7.
  • ctrl('008[7-8]') // positions 7&8
Returns:

The control field's value or a substring derived from it.

Type
string

field(tag) → {Array.<MarcField>}

Return first Marc Field matching tag.

Parameters:
Name Type Description
tag string

3-char MARC field label
Returns:

(or null if no field in record)

Type
Array.<MarcField>

fields(tag_re) → {Array.<MarcField>}

Return Marc Fields matching regex.

Parameters:
Name Type Description
tag_re string

Regex to match, e.g. '245', '2..' etc.
Returns:
Type
Array.<MarcField>

has(tag) → {boolean}

Test for existence of MARC field within record.

Parameters:
Name Type Description
tag string

3-char MARC field label.
Returns:

True if the record has one or more fields matching /tag/.

Type
boolean

leader() → {string}

Output MARC LDR.

Returns:
Type
string

rcn() → {string}

Returns:

For Authority records, return the rcn.

Type
string

rtype() → {string}

Returns:

The OCLC Code for Record Type (bibs), or 'AUTH' or 'MFHD' (See rtype_re for definition)

Type
string

subfield(tagspec) → {boolean}

Return first matching subfield value of /tagspec/

Parameters:
Name Type Description
tagspec string

4-char MARC field label and subfield code
Returns:

True if the record has one or more fields matching /tag/.

Type
boolean
Example
`record.subfield('245b');` // Returns subtitle.

title() → {string}

Returns:

Punctuation-chopped title.

Type
string