140 lines
4.1 KiB
Python
140 lines
4.1 KiB
Python
|
# Natural Language Toolkit: Word Finder
|
||
|
|
#
|
||
|
|
# Copyright (C) 2001-2023 NLTK Project
|
||
|
|
# Author: Steven Bird <stevenbird1@gmail.com>
|
||
|
|
# URL: <https://www.nltk.org/>
|
||
|
|
# For license information, see LICENSE.TXT
|
||
|
|
|
||
|
|
# Simplified from PHP version by Robert Klein <brathna@gmail.com>
|
||
|
|
# http://fswordfinder.sourceforge.net/
|
||
|
|
|
||
|
|
import random
|
||
|
|
|
||
|
|
|
||
|
|
# reverse a word with probability 0.5
|
||
|
|
def revword(word):
|
||
|
|
if random.randint(1, 2) == 1:
|
||
|
|
return word[::-1]
|
||
|
|
return word
|
||
|
|
|
||
|
|
|
||
|
|
# try to insert word at position x,y; direction encoded in xf,yf
|
||
|
|
def step(word, x, xf, y, yf, grid):
|
||
|
|
for i in range(len(word)):
|
||
|
|
if grid[xf(i)][yf(i)] != "" and grid[xf(i)][yf(i)] != word[i]:
|
||
|
|
return False
|
||
|
|
for i in range(len(word)):
|
||
|
|
grid[xf(i)][yf(i)] = word[i]
|
||
|
|
return True
|
||
|
|
|
||
|
|
|
||
|
|
# try to insert word at position x,y, in direction dir
|
||
|
|
def check(word, dir, x, y, grid, rows, cols):
|
||
|
|
if dir == 1:
|
||
|
|
if x - len(word) < 0 or y - len(word) < 0:
|
||
|
|
return False
|
||
|
|
return step(word, x, lambda i: x - i, y, lambda i: y - i, grid)
|
||
|
|
elif dir == 2:
|
||
|
|
if x - len(word) < 0:
|
||
|
|
return False
|
||
|
|
return step(word, x, lambda i: x - i, y, lambda i: y, grid)
|
||
|
|
elif dir == 3:
|
||
|
|
if x - len(word) < 0 or y + (len(word) - 1) >= cols:
|
||
|
|
return False
|
||
|
|
return step(word, x, lambda i: x - i, y, lambda i: y + i, grid)
|
||
|
|
elif dir == 4:
|
||
|
|
if y - len(word) < 0:
|
||
|
|
return False
|
||
|
|
return step(word, x, lambda i: x, y, lambda i: y - i, grid)
|
||
|
|
|
||
|
|
|
||
|
|
def wordfinder(words, rows=20, cols=20, attempts=50, alph="ABCDEFGHIJKLMNOPQRSTUVWXYZ"):
|
||
|
|
"""
|
||
|
|
Attempt to arrange words into a letter-grid with the specified
|
||
|
|
number of rows and columns. Try each word in several positions
|
||
|
|
and directions, until it can be fitted into the grid, or the
|
||
|
|
maximum number of allowable attempts is exceeded. Returns a tuple
|
||
|
|
consisting of the grid and the words that were successfully
|
||
|
|
placed.
|
||
|
|
|
||
|
|
:param words: the list of words to be put into the grid
|
||
|
|
:type words: list
|
||
|
|
:param rows: the number of rows in the grid
|
||
|
|
:type rows: int
|
||
|
|
:param cols: the number of columns in the grid
|
||
|
|
:type cols: int
|
||
|
|
:param attempts: the number of times to attempt placing a word
|
||
|
|
:type attempts: int
|
||
|
|
:param alph: the alphabet, to be used for filling blank cells
|
||
|
|
:type alph: list
|
||
|
|
:rtype: tuple
|
||
|
|
"""
|
||
|
|
|
||
|
|
# place longer words first
|
||
|
|
words = sorted(words, key=len, reverse=True)
|
||
|
|
|
||
|
|
grid = [] # the letter grid
|
||
|
|
used = [] # the words we used
|
||
|
|
|
||
|
|
# initialize the grid
|
||
|
|
for i in range(rows):
|
||
|
|
grid.append([""] * cols)
|
||
|
|
|
||
|
|
# try to place each word
|
||
|
|
for word in words:
|
||
|
|
word = word.strip().upper() # normalize
|
||
|
|
save = word # keep a record of the word
|
||
|
|
word = revword(word)
|
||
|
|
for attempt in range(attempts):
|
||
|
|
r = random.randint(0, len(word))
|
||
|
|
dir = random.choice([1, 2, 3, 4])
|
||
|
|
x = random.randint(0, rows)
|
||
|
|
y = random.randint(0, cols)
|
||
|
|
if dir == 1:
|
||
|
|
x += r
|
||
|
|
y += r
|
||
|
|
elif dir == 2:
|
||
|
|
x += r
|
||
|
|
elif dir == 3:
|
||
|
|
x += r
|
||
|
|
y -= r
|
||
|
|
elif dir == 4:
|
||
|
|
y += r
|
||
|
|
if 0 <= x < rows and 0 <= y < cols:
|
||
|
|
if check(word, dir, x, y, grid, rows, cols):
|
||
|
|
# used.append((save, dir, x, y, word))
|
||
|
|
used.append(save)
|
||
|
|
break
|
||
|
|
|
||
|
|
# Fill up the remaining spaces
|
||
|
|
for i in range(rows):
|
||
|
|
for j in range(cols):
|
||
|
|
if grid[i][j] == "":
|
||
|
|
grid[i][j] = random.choice(alph)
|
||
|
|
|
||
|
|
return grid, used
|
||
|
|
|
||
|
|
|
||
|
|
def word_finder():
|
||
|
|
from nltk.corpus import words
|
||
|
|
|
||
|
|
wordlist = words.words()
|
||
|
|
random.shuffle(wordlist)
|
||
|
|
wordlist = wordlist[:200]
|
||
|
|
wordlist = [w for w in wordlist if 3 <= len(w) <= 12]
|
||
|
|
grid, used = wordfinder(wordlist)
|
||
|
|
|
||
|
|
print("Word Finder\n")
|
||
|
|
for i in range(len(grid)):
|
||
|
|
for j in range(len(grid[i])):
|
||
|
|
print(grid[i][j], end=" ")
|
||
|
|
print()
|
||
|
|
print()
|
||
|
|
|
||
|
|
for i in range(len(used)):
|
||
|
|
print("%d:" % (i + 1), used[i])
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == "__main__":
|
||
|
|
word_finder()
|