Input Formats - Docs - Citation.js

Below is a list of built-in input types.

DOI

@doi/api: URL in the form of http[s]://doi.org/$DOI where $DOI is the DOI
@doi/id: A DOI surrounded by whitespace
@doi/list+text: A whitespace-separated list of DOIs
@doi/list+object: An array of strings of type @doi/id
There's no @doi/url, because that's equivalent to @doi/api through DOI Content Negotiation
There's no @doi/object, because the API output is CSL-JSON (it currently does need some minor changes, see CrossRef/rest-api-doc#222).

@wikidata/url: URL with Wikidata Entity ID. Gets and parses the entity data
@wikidata/list+text: List of Wikidata Entity IDs, separated by spaces, newlines or commas. Gets and parses the entity data
@wikidata/id: Single Wikidata Entity ID. Gets and parses the entity data
@wikidata/list+object: Array of strings of type @wikidata/id
@wikidata/api: Wikidata API URL. Gets and parses the entity data
@wikidata/object: Wikidata Entity data. Parses the entity data

@bibtex/text: BibTeX string. Parses the data
@bibtex/object: BibTeX JSON. A (non-standard) JSON represenation of BibTeX, and Bib.TXT for that matter. Parses the data
@bibtxt/text: Bib.TXT string. Parses the data

@bibjson/record+object: BibJSON object. Parses the data
@bibjson/quickscrape+record+object: BibJSON object with some quickscrape customisation. Parses the data
@bibjson/collection+object: BibJSON object, with a list of records and some collection metadata. Parses the data

These formats are not input-ready, but are rather parsed and re-evaluated, e.g. @else/html (DOM element) to @else/json to @csl/object.

@else/json: JSON or JavaScript Object string. Parses and re-evaluates the data
@else/jquery: jQuery element. Fetches and re-evaluates the contents
@else/html: HTML DOM element. Fetches and re-evaluates the contents
@else/url: URL. Fetches and re-evaluates the file
@empty/text: Empty string.
@empty/whitespace+text: String with only whitespace
@empty: null or undefined

These formats are defined inside the parser engine, and need to be. They have a special role in parsing.