Update Automaton._search_parameters to improve dates handling for inspirehep.

modules/harvest_tools/automaton.py

@@ -321,14 +321,15 @@ class Automaton(object):
             query = collection
 
             if year_start and not year_end:
-                query += " and date %s" % year_start
+                query += f" and date {year_start}"
 
             elif not year_start and year_end:
-                query += " and date %s" % year_end
+                query += f" and date {year_end}"
 
             elif year_start and year_end:
-                query += " and date > %s and date < %s " \
-                         % (year_start - 1, year_end + 1)
+                tpl = (f"date {el}" for el in range(year_start, year_end + 1))
+                sdates = " or ".join(tpl)
+                query += f" and ({sdates})"
 
             dic = dict(p=query,  # query à la spires
                        rg=1000,  # maximum number of records returned
@@ -354,8 +355,8 @@ class Automaton(object):
                 rex = year_end
 
             elif year_start and year_end:
-                li = [str(el) for el in range(year_start, year_end + 1)]
-                rex = "|".join(li)
+                tpl = (str(el) for el in range(year_start, year_end + 1))
+                rex = "|".join(tpl)
 
             dic = dict(cc=collection,  # collection
                        f1="year",  # search on year