Add function to flatten boggle board results into 1D list

src/boggler/boggler.py

@@ -1,7 +1,7 @@
 """Boggler Demo"""
 import sys
 from pathlib import Path
-from boggler_utils import BoggleBoard, build_full_boggle_tree, read_boggle_file
+from boggler_utils import BoggleBoard, build_full_boggle_tree, read_boggle_file, find_paths_by_word
 
 if __name__ == '__main__':
     if len(sys.argv) < 3 or len(sys.argv) > 4:
@@ -23,6 +23,10 @@ if __name__ == '__main__':
         print("\nBOARD")
         print(boggle_board)
 
+        # found_words = find_paths_by_word(board, Path(sys.argv[2]), 16)
+        # for word in found_words:
+        #     print(word)
+
         for start_pos, tree in boggle_tree.items():
             print(f"\nStarting @ {start_pos}...")
             for word in tree.word_paths:

src/boggler/boggler_utils.py

@@ -2,6 +2,8 @@
 from __future__ import annotations
 from os import path
 from multiprocessing import Pool
+import functools
+import operator
 
 class BoardCell:
     '''Boggle Board cell'''
@@ -418,3 +420,10 @@ def read_boggle_file(file):
     '''Return list of rows from Boggle board csv file'''
     with open(file, 'r', encoding='utf-8') as file:
         return [x.rstrip().split(',') for x in file.readlines()]
+
+def find_paths_by_word(board_letters, dictionary_path, max_len):
+    '''Return list of paths by word'''
+    boggle_board = BoggleBoard(board_letters, max_len)
+    boggle_tree = build_full_boggle_tree(boggle_board, dictionary_path)
+    paths_by_word = functools.reduce(operator.iconcat, [x.word_paths for x in boggle_tree.values()], [])
+    return paths_by_word