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import json
import collections
from citeproc import CitationStylesStyle, CitationStylesBibliography
from citeproc import Citation, CitationItem
from citeproc import formatter
from citeproc.source.json import CiteProcJSON
from citeproc_styles import get_style_filepath
from fatcat_client import ApiClient
def contribs_by_role(contribs, role):
ret = [c.copy() for c in contribs if c['role'] == role]
[c.pop('role') for c in ret]
# XXX:
[c.pop('literal') for c in ret if 'literal' in c]
if not ret:
return None
else:
return ret
def release_to_csl(entity):
"""
Returns a python dict which can be json.dumps() to get a CSL-JSON (aka,
citeproc-JSON, aka Citation Style Language JSON)
This function will likely become an API method/endpoint
Follows, but not enforced by: https://github.com/citation-style-language/schema/blob/master/csl-data.json
"""
contribs = []
for contrib in (entity.contribs or []):
if contrib.creator:
# TODO: should we actually be pulling creator metadata? or just
# using release-local raw metadata?
family = contrib.creator.surname
if not family:
if not contrib.raw_name:
raise ValueError("CSL requires some surname (family name)")
family = contrib.raw_name.split()[-1]
c = dict(
family=contrib.creator.surname,
given=contrib.creator.given_name,
#dropping-particle
#non-dropping-particle
#suffix
#comma-suffix
#static-ordering
literal=contrib.raw_name, # or display_name?
#parse-names,
role=contrib.role,
)
else:
if not contrib.raw_name:
raise ValueError("CSL requires some surname (family name)")
c = dict(
# XXX: possible inclusion of full name metadata in release_contrib
family=contrib.raw_name.split()[-1],
literal=contrib.raw_name,
role=contrib.role,
)
for k in list(c.keys()):
if not c[k]:
c.pop(k)
contribs.append(c)
abstract = None
if entity.abstracts:
abstract = entity.abstracts[0].content
issued_date = None
if entity.release_date:
issued_date = {"date-parts": [[
entity.release_date.year,
entity.release_date.month,
entity.release_date.day,
]]}
elif entity.release_year:
issued_date = {"date-parts": [[entity.release_year]]}
csl = dict(
#id,
#categories
type=entity.release_type or "article", # XXX: can't be blank
language=entity.language,
#journalAbbreviation
#shortTitle
## see below for all contrib roles
#accessed
#container
#event-date
issued=issued_date,
#original-date
#submitted
abstract=abstract,
#annote
#archive
#archive_location
#archive-place
#authority
#call-number
#chapter-number
#citation-number
#citation-label
#collection-number
#collection-title
container_title=entity.container and entity.container.name,
#container-title-short
#dimensions
DOI=entity.doi,
#edition
#event
#event-place
#first-reference-note-number
#genre
ISBN=entity.isbn13,
ISSN=entity.container and entity.container.issnl,
issue=entity.issue,
#jurisdiction
#keyword
#locator
#medium
#note
#number
#number-of-pages
#number-of-volumes
#original-publisher
#original-publisher-place
#original-title
# TODO: page=entity.pages,
page_first=entity.pages and entity.pages.split('-')[0],
PMCID=entity.pmcid,
PMID=entity.pmid,
publisher=(entity.container and entity.container.publisher) or entity.publisher,
#publisher-place
#references
#reviewed-title
#scale
#section
#source
#status
title=entity.title,
#title-short
#URL
#version
volume=entity.volume,
#year-suffix
)
for role in ['author', 'collection-editor', 'composer', 'container-author',
'director', 'editor', 'editorial-director', 'interviewer',
'illustrator', 'original-author', 'recipient', 'reviewed-author',
'translator']:
cbr = contribs_by_role(contribs, role)
if cbr:
csl[role] = cbr
# underline-to-dash
csl['container-title'] = csl.pop('container_title')
csl['page-first'] = csl.pop('page_first')
empty_keys = [k for k,v in csl.items() if not v]
for k in empty_keys:
csl.pop(k)
return csl
def refs_to_csl(entity):
ret = []
for ref in entity.refs:
if ref.release_id and False:
# TODO: fetch full entity from API and convert with release_to_csl
raise NotImplementedError
else:
issued_date = None
if ref.year:
issued_date = [[ref.year]]
csl = dict(
title=ref.title,
issued=issued_date,
)
csl['id'] = ref.key or ref.index, # zero- or one-indexed?
ret.append(csl)
return ret
def citeproc_csl(csl_json, style, html=False):
"""
Renders a release entity to a styled citation.
Notable styles include:
- 'csl-json': special case to JSON encode the structured CSL object (via
release_to_csl())
- bibtext: multi-line bibtext format (used with LaTeX)
Returns a string; if the html flag is set, and the style isn't 'csl-json'
or 'bibtex', it will be HTML. Otherwise plain text.
"""
if not csl_json.get('id'):
csl_json['id'] = "unknown"
if style == "csl-json":
return json.dumps(csl_json)
bib_src = CiteProcJSON([csl_json])
form = formatter.plain
if html:
form = formatter.html
style_path = get_style_filepath(style)
bib_style = CitationStylesStyle(style_path, validate=False)
bib = CitationStylesBibliography(bib_style, bib_src, form)
bib.register(Citation([CitationItem(csl_json['id'])]))
lines = bib.bibliography()[0]
if style == "bibtex":
out = "\n"
for l in lines:
if l.startswith(" @"):
out += "@"
elif l.startswith(" "):
out += "\n " + l
else:
out += l
return ''.join(out)
else:
return ''.join(lines)
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