python“ in”操作员没有在文本中找到子字符串

发布于 2025-02-04 17:32:55 字数 1001 浏览 2 评论 0原文

我试图发现子字符串列表中的任何子字符串是否在给定的字符串中。为此，我在列表的项目上循环，并使用Python的运算符中检查它们是否存在于字符串中。即使我确定其中一个子字符串存在于字符串中，我也会得到错误的值。我已经尝试了所有旨在统一文本和子字符串的方法：用“”替换所有“”，使用casefold（）方法，strip（），甚至使用代码> unidecode 。尽管如此，找不到子字符串。

我的代码：

from unidecode import unidecode

example_string = '''available at www.sciencedirect.com
journal homepage: www.elsevier.com/locate/nanotoday
REVIEW
Synthesis, properties and applications of Janus
nanoparticles
Marco Lattuada a, T. Alan Hatton b,''' # as extracted from PDF file using fitz's `doc.load_page(0)` and then `.get_text()` 

list_of_titles = ["Synthesis, properties and applications of Janus nanoparticles", "another_title", "another_title"]

example_string = example_string.casefold()
example_string = example_string.replace(" ", "")

for title in list_of_titles:
    title = title.replace(" ", "")
    title = title.casefold()
    if unidecode(title) in unidecode(example_string):
         print("Yes")

# Outputs nothing

原文

I am trying to find if any substring in a list of substrings is in a given string. To do so, I loop over the items of the list and check if they exist in the string using python's in operator. I am getting False values even though I am sure one of the substrings exists in the string. I have tried all the methods meant to unify the text and the substrings: replaced all " " with "", used casefold() method, strip(), even used unidecode. Still, the substring is not found.

My code:

from unidecode import unidecode

example_string = '''available at www.sciencedirect.com
journal homepage: www.elsevier.com/locate/nanotoday
REVIEW
Synthesis, properties and applications of Janus
nanoparticles
Marco Lattuada a, T. Alan Hatton b,''' # as extracted from PDF file using fitz's `doc.load_page(0)` and then `.get_text()` 

list_of_titles = ["Synthesis, properties and applications of Janus nanoparticles", "another_title", "another_title"]

example_string = example_string.casefold()
example_string = example_string.replace(" ", "")

for title in list_of_titles:
    title = title.replace(" ", "")
    title = title.casefold()
    if unidecode(title) in unidecode(example_string):
         print("Yes")

# Outputs nothing

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雪花飘飘的天空 2025-02-11 17:32:56

尝试

example_string = example_string.replace("\n", " ")
example_string = example_string.casefold()

for title in list_of_titles:
    if title.casefold() in example_string: # here casefold() again!
         print("Yes")

我认为\ n发生一些冲突

Try with

example_string = example_string.replace("\n", " ")
example_string = example_string.casefold()

for title in list_of_titles:
    if title.casefold() in example_string: # here casefold() again!
         print("Yes")

I think the \n make some conflicts

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