constants¶

Constants used within the library.

FRONTMATTER_ID = '0'

Paper ID that signals that a paper is frontmatter.

NO_BIBKEY = '__NO_BIBKEY__'

Sentinel value to be set on a newly created paper, before its bibkeys is generated.

RE_BIBKEY = f'^([a-z][a-z0-9-]+)|({NO_BIBKEY})$'

A regular expression matching a valid bibkey (following our conventions).

RE_EVENT_ID = '^[a-z0-9]+-[0-9]{4}$'

A regular expression matching a valid event ID.

RE_ISO_DATE = '^[0-9]{4}-[0-9]{2}-[0-9]{2}$'

A regular expression matching a date in ISO format.

RE_VENUE_ID = '^[a-z][a-z0-9]+$'

A regular expression matching a valid venue ID.

UNKNOWN_INGEST_DATE = date(1900, 1, 1)

Default ingestion date.