[FIX] Date parsing for ISI (Web of Science)

gargantext/util/parsers/ISI.py

+import re
+
 from .RIS import RISParser
 
 
@@ -17,3 +19,34 @@ class ISIParser(RISParser):
             "AB":  {"type": "hyperdata", "key": "abstract", "separator": " "},
             "WC":  {"type": "hyperdata", "key": "fields"},
         }
+
+        _year = re.compile(r'\b\d{4}\b')
+        _season = re.compile(r'\b(SPR|SUM|FAL|WIN)\b', re.I)
+        _month_interval = re.compile(r'\b([A-Z]{3})-([A-Z]{3})\b', re.I)
+        _day_interval = re.compile(r'\b(\d{1,2})-(\d{1,2})\b')
+
+        def _preprocess_PD(self, PD, PY):
+            # Add a year to date if applicable
+            if PY and self._year.search(PY) and not self._year.search(PD):
+                PD = PY + " " + PD
+
+            # Drop season if any
+            PD = self._season.sub('', PD).strip()
+
+            # If a month interval is present, keep only the first month
+            PD = self._month_interval.sub(r'\1', PD)
+
+            # If a day interval is present, keep only the first day
+            PD = self._day_interval.sub(r'\1', PD)
+
+            return PD
+
+        def parse(self, file):
+            PD = self._parameters["PD"]["key"]
+            PY = self._parameters["PY"]["key"]
+
+            for entry in super().parse(file):
+                if PD in entry:
+                    entry[PD] = self._preprocess_PD(entry[PD], entry[PY])
+
+                yield entry

gargantext/util/parsers/_Parser.py

@@ -86,6 +86,9 @@ class Parser:
             print("WARNING: Date unknown at _Parser level, using now()")
             hyperdata['publication_date'] = datetime.now()
 
+        # XXX Handling prefixes is most likely useless: there seem to be only
+        #     one prefix which is "publication" (like in "publication_date").
+
         # ...then parse all the "date" fields, to parse it into separate elements
         prefixes = [key[:-5] for key in hyperdata.keys() if key[-5:] == "_date"]
         for prefix in prefixes: