Split main (#14)

* split main in modules

* adding comments

* black

* fix summaries

* rocky's  comments fixed

* black

* test for wordlist

* easy fixes

* complete doctests

* fix Containing. Adding test cases

* black

* trailing typos

* split nltk from utils

* Some small tweaks and conformance things (#15)

---------

Co-authored-by: R. Bernstein <rocky@users.noreply.github.com>

Author: mmatera

Makefile

@@ -72,7 +72,7 @@ pytest:
 
 
 doctest:
-	MATHICS_CHARACTER_ENCODING="ASCII" $(PYTHON) -m mathics.docpipeline -l pymathics.natlang -c  "Natural Language Processing"  $o
+	MATHICS_CHARACTER_ENCODING="ASCII" $(PYTHON) -m mathics.docpipeline -l pymathics.natlang -c 'Natural Language Processing' $o
 
 
 # #: Make Mathics PDF manual
@@ -89,5 +89,4 @@ ChangeLog: rmChangeLog
 
 #: Run pytest consistency and style checks
 check-consistency-and-style:
-	# MATHICS_LINT=t $(PYTHON) -m pytest test/consistency-and-style
-	echo "check-consistency-and-style deactivated. Activate me later. "
+	MATHICS_LINT=t $(PYTHON) -m pytest test/consistency-and-style

pymathics/natlang/__init__.py

@@ -38,28 +38,32 @@
      = Old Man Apulia, conduct peculiar
 """
 
-
-from pymathics.natlang.main import (
-    DeleteStopwords,
+from pymathics.natlang.linguistic_data import (
     DictionaryLookup,
     DictionaryWordQ,
-    LanguageIdentify,
-    Pluralize,
     RandomWord,
-    SpellingCorrectionList,
+    WordData,
+    WordDefinition,
+    WordList,
+)
+from pymathics.natlang.manipulate import Pluralize
+from pymathics.natlang.normalization import (
+    DeleteStopwords,
     TextCases,
     TextPosition,
     TextSentences,
     TextStructure,
     TextWords,
+)
+from pymathics.natlang.textual_analysis import (
+    Containing,
+    SpellingCorrectionList,
     WordCount,
-    WordData,
-    WordDefinition,
     WordFrequency,
-    WordList,
     WordSimilarity,
     WordStem,
 )
+from pymathics.natlang.translation import LanguageIdentify
 from pymathics.natlang.version import __version__
 
 pymathics_version_data = {
@@ -70,6 +74,7 @@
 }
 
 __all__ = [
+    "Containing",
     "DeleteStopwords",
     "DictionaryLookup",
     "DictionaryWordQ",