Fix 177: convert latex to unicode before printing one-liner.

This commit actually introduces a new method on the paper object to
return a copy of the bibdata which entries' latex have been converted to
unicode.

pubs/paper.py

@@ -1,6 +1,8 @@
 import copy
 from dateutil.parser import parse as datetime_parse
 
+from bibtexparser.customization import convert_to_unicode
+
 from . import bibstruct
 from .p3 import ustr
 
@@ -102,6 +104,10 @@ class Paper(object):
     def added(self, value):
         self.metadata['added'] = value
 
+    def get_unicode_bibdata(self):
+        """Converts latex in bibdata fields to unicode."""
+        return convert_to_unicode(self.bibdata)
+
     @staticmethod
     def from_bibentry(bibentry, citekey=None, metadata=None):
         bibentry_key, bibdata = bibstruct.get_entry(bibentry)

pubs/pretty.py

@@ -64,7 +64,7 @@ def paper_oneliner(p, citekey_only=False):
     if citekey_only:
         return p.citekey
     else:
-        bibdesc = bib_oneliner(p.bibdata)
+        bibdesc = bib_oneliner(p.get_unicode_bibdata())
         doc_str = ''
         if p.docpath is not None:
             doc_extension = os.path.splitext(p.docpath)[1]

tests/str_fixtures.py

@@ -84,6 +84,18 @@ not_bibtex = """@misc{this looks,
 
 """
 
+bibtex_with_latex = """@article{kjaer2018large,
+  title={A large impact crater beneath Hiawatha Glacier in northwest Greenland},
+  author={Kj{\\ae}r, Kurt H and Larsen, Nicolaj K and Binder, Tobias and Bj{\\o}rk, Anders A and Eisen, Olaf and Fahnestock, Mark A and Funder, Svend and Garde, Adam A and Haack, Henning and Helm, Veit and others},
+  journal={Science advances},
+  volume={4},
+  number={11},
+  pages={eaar8173},
+  year={2018},
+  publisher={American Association for the Advancement of Science}
+}
+"""
+
 sample_conf = """
 [main]
 

tests/test_paper.py

@@ -4,7 +4,9 @@ import unittest
 
 import dotdot
 import fixtures
+import str_fixtures
 from pubs.paper import Paper
+from pubs.endecoder import EnDecoder
 
 
 class TestAttributes(unittest.TestCase):
@@ -47,5 +49,20 @@ class TestAttributes(unittest.TestCase):
             Paper(" ", fixtures.doe_bibdata)
 
 
+class TestPaperUnicodeBibdata(unittest.TestCase):
+
+    def test_no_latex(self):
+        p = Paper.from_bibentry(fixtures.page_bibentry,
+                                metadata=fixtures.page_metadata).deepcopy()
+        self.assertEqual(p.bibdata, p.get_unicode_bibdata())
+
+    def test_latex_converted(self):
+        bib = EnDecoder().decode_bibdata(str_fixtures.bibtex_with_latex)
+        p = Paper.from_bibentry(bib)
+        ubib = p.get_unicode_bibdata()
+        self.assertEqual(ubib['author'][0], "Kjær, Kurt H")
+        self.assertEqual(ubib['author'][3], "Bjørk, Anders A")
+
+
 if __name__ == '__main__':
     unittest.main()