https://github.com/natlibfi/marc-record-merge-js
A configurable Javascript module for merging MARC records
https://github.com/natlibfi/marc-record-merge-js
Last synced: 12 months ago
JSON representation
A configurable Javascript module for merging MARC records
- Host: GitHub
- URL: https://github.com/natlibfi/marc-record-merge-js
- Owner: NatLibFi
- License: mit
- Created: 2015-03-23T10:26:57.000Z (over 11 years ago)
- Default Branch: main
- Last Pushed: 2024-04-11T03:33:48.000Z (about 2 years ago)
- Last Synced: 2024-04-14T11:41:18.385Z (about 2 years ago)
- Language: JavaScript
- Homepage:
- Size: 1.41 MB
- Stars: 3
- Watchers: 9
- Forks: 0
- Open Issues: 9
-
Metadata Files:
- Readme: README.md
- License: LICENSE
- Codeowners: .github/CODEOWNERS
Awesome Lists containing this project
README
# Merge MARC records [](https://npmjs.org/package/@natlibfi/marc-record-merge)
Merge MARC records
## Usage
### COPY
Chosing fields for reducer:
```
const copyReducerConfigs = [
{tagPattern: /010/u},
{tagPattern: /010|020/u},
{tagPattern: new RegExp('010', 'u')},
{tagPattern: new RegExp(String((/^(?010|020$)/u').source))},
]
```
### compareTagsOnly (Defaults false)
```
{tagPattern: /010/u, compareTagsOnly: false}
```
If base has field with that tag source field is ignored
### doNotCopyIfFieldPresent (Defaults false)
```
{tagPattern: /010/u, doNotCopyIfFieldPresent: "^011$"}
```
If base has field with that tag 011 source field is ignored
### compareWithoutIndicators (Defaults false)
```
{tagPattern: /010/u, compareWithoutIndicators: false}
```
When base and source fields are compared, indicator differences are ignored
### compareWithoutTag (Defaults false)
```
{tagPattern: /^(100|700)$/u, compareWithoutTag: false}
{tagPattern: /^(100|700)$/u, compareWithoutTag: false, swapTag: [{"from": "^100$", "to": "700"}]}
```
When base and source fields are compared, tag differences are ignored
### subfieldsMustBeIdentical (Defaults true)
```
{tagPattern: /010/u, subfieldsMustBeIdentical: true}
```
If source subfields are subset of base subfields this option says if it is copied
| subfieldsMustBeIdentical | base | source | copy |
|--------------------------|---------------|---------------|-------|
| true or false | $a foo | $a foo | false |
| true or false | $a foo | $b bar | true |
| true | $a foo | $a foo,$b bar | true |
| false | $a foo | $a foo,$b bar | true |
| true | $a foo,$b bar | $a foo | true |
| false | $a foo,$b bar | $a foo | false |
### excludeSubfields (Defaults [ ])
```
{tagPattern: /010/u, excludeSubfields: ['a']}
```
When base and source fields are compared, excluded subfields are ignored
### swapTag (Defaults [ ])
```
{tagPattern: /^100$/u, swapTag: [{"from": "^100$", "to": "700"}]}
{tagPattern: /^(100|700)$/u, compareWithoutTag: false, swapTag: [{"from": "^100$", "to": "700"}]}
```
When fields are copied, tags are swapped. From is Regexp filter and to is string value.
### swapSubfieldCode (Defaults [ ])
```
{tagPattern: /010/u, swapSubfieldCode: [{"from": "a", "to": "b"}]}
```
When source fields are copied, subfields are checkked and if subfield.code match to 'from' value is that code swapped to 'to' value
### dropSubfields (Defaults [ ])
```
{tagPattern: /010/u, dropSubfields: [{"code": "9"}]}
```
Drops subfields 9's from all fields tagged 010
```
{tagPattern: /010/u, dropSubfields: [{"code": "9", "value": "FENNI"}]}
```
Drops subfields 9's that have "FENNI" from all fields tagged 010
```
{tagPattern: /010/u, dropSubfields: [{"code": "9", "condition": "unless", "value": "^FENNI<(?KEEP|DROP)>$"}]}
```
Drops all subfield 9's unless they have "FENNI" or "FENNI" from all fields tagged 010
When comparing or copying field dropped fields are ignored
### copyUnless (Defaults [ ])
```
{tagPattern: /010/u, copyUnless: [{"code": "9", "value": "FENNI"}]}
```
When field is otherwise ok to be copied, if it contains given subfield whole field is ignored
### baseValidators (Defaults {subfieldValues: false})
```
{tagPattern: /010/u, baseValidators: {fields: true, subfields: true, subfieldValues: true}}
```
Marc record validators for base record while reducer is working.
More info can be read here: https://github.com/NatLibFi/marc-record-js
### sourceValidators (Defaults {subfieldValues: false})
```
{tagPattern: /010/u, sourceValidators: {fields: true, subfields: true, subfieldValues: true}}
```
Marc record validators for source record while reducer is working.
More info can be read here: https://github.com/NatLibFi/marc-record-js
## License and copyright
Copyright (c) 2020-2025 **University Of Helsinki (The National Library Of Finland)**
This project's source code is licensed under the terms of **MIT** or any later version.