[GIT] File parsers - Added RisFileParser.py to the repository

parsing/FileParsers/RisFileParser.py

+from django.db import transaction
+from parsing.FileParsers.FileParser import FileParser
+
+
+class RisFileParser(FileParser):
+    
+    _parameters = {
+    }
+    
+    def _parse(self, parentNode, file):
+        metadata = {}
+        last_key = None
+        last_values = []
+        with transaction.atomic():
+            for line in self._file:
+                if len(line) > 2:
+                    parameter_key = line[:2]
+                    if parameter_key != b'  ' and parameter_key != last_key:
+                        if last_key in self._parameters:
+                            parameter = self._parameters[last_key]
+                            if parameter["type"] == "metadata":
+                                separator = parameter["separator"] if "separator" in parameter else ""
+                                metadata[parameter["key"]] = separator.join(last_values)
+                            elif parameter["type"] == "delimiter":
+                                language = self._languages_fullname[metadata["language"].lower()]
+                                self.create_document(
+                                    parentNode  = parentNode,
+                                    title       = metadata["title"],
+                                    metadata    = metadata,
+                                    guid        = metadata["doi"]
+                                )
+                                # print(self.format_metadata(metadata))
+                                # print()
+                                metadata = {}
+                        last_key = parameter_key
+                        last_values = []
+                    last_values.append(line[3:-1].decode())
+            self._file.close()
+