X-Git-Url: https://harishankar.org/repos/?p=getaclue.git;a=blobdiff_plain;f=crosswordpuzzle.py;h=628392098506ae21438d7e8b561f1cd0ae869148;hp=ffdd9157ba0608294b283d3927ea6dcbbad93760;hb=HEAD;hpb=d7084b7094c99003960b33d4bd4fb655248c6ab3

diff --git a/crosswordpuzzle.py b/crosswordpuzzle.py
index ffdd915..6283920 100644
--- a/crosswordpuzzle.py
+++ b/crosswordpuzzle.py
@@ -93,6 +93,11 @@ class TooLongWordException (Exception):
 		self.word = word
 		self.length = length
 
+# exception for words containing non-alpha characters
+class WordCharsException (Exception):
+	def __init__ (self, word):
+		self.word = word
+
 # exception for intersecting words
 class IntersectWordException (Exception):
 	def __init__ (self, word, length):
@@ -119,6 +124,11 @@ class NoWordsException (Exception):
 	def __init__ (self):
 		self.msg = "No words in grid"
 
+# exception to raise when solution is imcomplete when trying to verify it
+class IncompleteSolutionException (Exception):
+	def __init__ (self):
+		self.msg = "Solution incomplete"
+
 class CrosswordPuzzle:
 	def __init__ (self, rows, cols):
 		# define number of rows and columns
@@ -426,6 +436,10 @@ class CrosswordPuzzle:
 		# if the grid is frozen then abort
 		self.assert_unfrozen_grid ()
 
+		# if the word has non-alphabetic characters
+		if not word.isalpha ():
+			raise WordCharsException (word)
+
 		# if the word length greater than totalrows - startrow
 		if len(word) > self.rows - row:
 			raise TooLongWordException (word, len(word))
@@ -480,6 +494,10 @@ class CrosswordPuzzle:
 		# if the grid is frozen then abort
 		self.assert_unfrozen_grid ()
 
+		# if the word has non-alphabetic characters
+		if not word.isalpha ():
+			raise WordCharsException (word)
+
 		# is the word length greater than totalcols - startcol?
 		if len(word) > self.cols - col:
 			raise TooLongWordException (word, len(word))
@@ -643,4 +661,31 @@ class CrosswordPuzzle:
 			for col in range (self.cols):
 				self.data[row][col].revealed = revealed
 
+	# clear the guesses for the board
+	def clear_guesses (self):
+		# run through the grid and set the guesses to None
+		for row in range (self.rows):
+			for col in range (self.cols):
+				self.data[row][col].guess = None
+
+	# verify the solution - return True if all guessed characters are correct
+	# return False if some of them are wrong.
+	# if the board is not completed as yet, raise a IncompleteSolutionException
+	def is_solution_correct (self):
+		# run through the grid and check for each character in occupied cells
+		flag = True
+		for row in range (self.rows):
+			for col in range (self.cols):
+				if (self.data[row][col].occupied_across is True or
+					self.data[row][col].occupied_down is True):
+					# if there is no guess at a particular location raise
+					# the incomplete solution exception
+					if not self.data[row][col].guess:
+						raise IncompleteSolutionException
+					# if a character doesn't match, return False
+					if self.data[row][col].char <> self.data[row][col].guess:
+						flag = False
+
+		# finally return result
+		return flag