Make some init parameters optional

redstring/library.py

@@ -3,7 +3,7 @@ Logic for operations that depend on a whole collection of documents.
 """
 import os
 
-from redstring.parser import load, TagOptions, DocumentTag, TabOptions, DocumentTab, Document
+from redstring.parser import load, DocumentTag, DocumentTab, Document
 
 
 def generate_index_document(directory: str) -> Document:
@@ -64,8 +64,8 @@ def generate_index_document(directory: str) -> Document:
             docs = sorted(categories[category][topic], key=lambda x: x[0])
             doc_links = map(document_link, docs)
             value = '- ' + '<br>- '.join(doc_links)
-            built_tags.append(DocumentTag(topic, value, TagOptions(), []))
+            built_tags.append(DocumentTag(topic, value))
 
-        built_tabs.append(DocumentTab(category, built_tags, TabOptions()))
+        built_tabs.append(DocumentTab(category, built_tags))
 
     return Document(built_tabs)

redstring/parser.py

@@ -4,7 +4,7 @@ Logic for reading and writing documents from files.
 import argparse
 from collections import OrderedDict
 import json
-from typing import Any, List, IO
+from typing import Any, List, IO, Optional
 
 
 #
@@ -98,10 +98,15 @@ class DocumentSubtag:
     """
     A keyvalue describing a document subject.
     """
-    def __init__(self, name: str, value: str, options: TagOptions) -> None:
+    def __init__(
+        self,
+        name: str,
+        value: str,
+        options: Optional[TagOptions] = None
+    ) -> None:
         self.name: str = name
         self.value: str = value
-        self.options: TagOptions = options
+        self.options: TagOptions = options if options is not None else TagOptions()
 
 
 class DocumentTag:
@@ -112,23 +117,28 @@ class DocumentTag:
         self,
         name: str,
         value: str,
-        options: TagOptions,
-        subtags: List[DocumentSubtag]
+        options: Optional[TagOptions] = None,
+        subtags: Optional[List[DocumentSubtag]] = None
     ) -> None:
         self.name: str = name
-        self.value = value
-        self.options = options
-        self.subtags = subtags
+        self.value: str = value
+        self.options: TagOptions = options if options is not None else TagOptions()
+        self.subtags: list = subtags if subtags is not None else []
 
 
 class DocumentTab:
     """
     A division of tags within a document.
     """
-    def __init__(self, name: str, tags: List[DocumentTag], options: TabOptions) -> None:
-        self.name = name
+    def __init__(
+        self,
+        name: str,
+        tags: List[DocumentTag],
+        options: Optional[TabOptions] = None
+    ) -> None:
+        self.name: str = name
         self.tags: List[DocumentTag] = tags
-        self.options: TabOptions = options
+        self.options: TabOptions = options if options is not None else TabOptions()
 
     def get_tag(self, name: str):
         for tag in self.tags: