python - 句子中的加长单词检查

Question

我想检查一个句子是否有拉长的单词。例如，soooo、tooooo、thaaatttt 等。现在我不知道用户可能会输入什么，因为我有一个句子列表，其中可能有也可能没有拉长的单词。我如何在python中检查它。我是 python 新手。

Answer 1

@HughBothwell 有一个好主意。据我所知，没有一个英文单词的同一个字母连续重复三遍。因此，您可以搜索执行此操作的单词：

>>> from re import search
>>> mystr = "word word soooo word tooo thaaatttt word"
>>> [x for x in mystr.split() if search(r'(?i)[a-z]\1\1+', x)]
['soooo,', 'tooo', 'thaaatttt']
>>>

您找到的任何内容都将是拉长的单词。

Answer 2

尝试这个：

import re
s1 = "This has no long words"
s2 = "This has oooone long word"

def has_long(sentence):
    elong = re.compile("([a-zA-Z])\\1{2,}")
    return bool(elong.search(sentence))


print has_long(s1)
False
print has_long(s2)
True

Answer 3

您需要有可用的有效英语单词的参考。在 *NIX 系统上，您可以使用/etc/share/dict/wordsor/usr/share/dict/words或等价物并将所有单词存储到一个set对象中。

然后，您需要检查句子中的每个单词，

1. 该词本身不是一个有效的词（即，word not in all_words）；和
2. 也就是说，当您将所有连续序列缩短为一两个字母时，新单词就是有效单词。

这是您尝试提取所有可能性的一种方法：

import re
import itertools

regex = re.compile(r'\w\1\1')

all_words = set(get_all_words())

def without_elongations(word):
    while re.search(regex, word) is not None:
        replacing_with_one_letter = re.sub(regex, r'\1', word, 1)
        replacing_with_two_letters = re.sub(regex, r'\1\1', word, 1)
        return list(itertools.chain(
            without_elongations(replacing_with_one_letter),
            without_elongations(replacing_with_two_letters),
        ))

for word in sentence.split():
    if word not in all_words:
        if any(map(lambda w: w in all_words, without_elongations(word)):
            print('%(word) is elongated', { 'word': word })

Answer 4

好吧，您可以在逻辑上列出每个拉长的单词。然后遍历句子中的单词，然后遍历列表中的单词以找到拉长的单词。

sentence = "Hoow arre you doing?"
elongated = ["hoow",'arre','youu','yoou','meee'] #You will need to have a much larger list
for word in sentence:
    word = word.lower()
    for e_word in elongated:
        if e_word == word:
            print "Found an elongated word!"

如果你想做 Hugh Bothwell 所说的，那么：

sentence = "Hooow arrre you doooing?"
elongations = ["aaa","ooo","rrr","bbb","ccc"]#continue for all the letters 
for word in sentence:
    for x in elongations:
        if x in word.lower():
            print '"'+word+'" is an elongated word'