1 files changed, 47 insertions, 0 deletions
diff --git a/paper2remarkable/providers/nature.py b/paper2remarkable/providers/nature.py
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+++ b/paper2remarkable/providers/nature.py
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+# -*- coding: utf-8 -*-
+
+"""Provider for Nature
+
+Author: G.J.J. van den Burg
+License: See LICENSE file
+Copyright: 2020, G.J.J. van den Burg
+
+"""
+
+import re
+
+from ._base import Provider
+from ._info import Informer
+from ..exceptions import URLResolutionError
+
+
+class NatureInformer(Informer):
+
+    meta_date_key = "citation_online_date"
+
+    def _format_authors(self, soup_authors):
+        return super()._format_authors(soup_authors, sep=" ", idx=-1)
+
+
+class Nature(Provider):
+
+    re_abs = "^https://www.nature.com/articles/s[a-z0-9\-]+$"
+    re_pdf = "^https://www.nature.com/articles/s[a-z0-9\-]+\.pdf$"
+
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.informer = NatureInformer()
+
+    def get_abs_pdf_urls(self, url):
+        if re.match(self.re_abs, url):
+            abs_url = url
+            pdf_url = url + ".pdf"
+        elif re.match(self.re_pdf, url):
+            pdf_url = url
+            abs_url = url.replace(".pdf", "")
+        else:
+            raise URLResolutionError("Nature", url)
+        return abs_url, pdf_url
+
+    def validate(src):
+        return re.match(Nature.re_abs, src) or re.match(Nature.re_pdf, src)