python - Python 2 中的字符串替换和匹配

Question

我有一些用户帖子，我想将其与预定的模式列表相匹配(参见示例)。如果帖子与模式匹配，我想将帖子和模式写入文件。做这个的最好方式是什么？到目前为止，我只想到用 4 个 for 循环强制执行它，然后进行一些比较。我已经有了我需要的所有数据的列表，下面只是一些非常简单的示例，可以让您了解我在寻找什么。

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示例

帖子:

posts =['When I ate at McDonald\'s, I felt sick.',
'I like eating at Burger King.',
'Wendy\'s made me feel happy.']

图案:

patterns = ['When I ate at [RESTAURANT]',
'I like eating at [RESTAURANT]',
'[RESTAURANT] made me feel [FEELING]',
'I felt [FEELING]']

列表:

restaurant_names = ['McDonald\'s', 'Burger King', 'Wendy\'s']

feelings = ['happy', 'sick', 'tired']

输出文件:

当我在 [RESTAURANT] 吃饭时，当我在麦当劳吃饭时，我感到恶心。

我感到[FEELING]，当我在麦当劳吃饭时，我感到恶心。

[RESTAURANT] 让我感到[FEELING]，Wendy 让我感到快乐。

我喜欢在 [RESTAURANT] 吃饭，我喜欢在汉堡王吃饭。

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- 抱歉格式化，但这是我潜伏了一段时间后在 stackoverflow 上发表的第一篇文章。在此先感谢您的帮助!

Answer 1

这样的事情怎么样:

>>> sentences = ["When I ate at McDonald's, I felt sick.", 'I like eating at Burger King.', 
    "Wendy's made me feel happy."]
>>> patterns = {"McDonald's": "[RESTAURANT]", "Burger King": "[RESTAURANT]", 
    "Wendy's": "[RESTAURANT]", "happy": "[FEELING]", "sick": "[FEELING]", 
    "tired": "[FEELING]"}

然后你可以做

>>> for sentence in sentences:
...     replaced = sentence
...     for pattern in patterns:
...         if pattern in sentence:
...             replaced = replaced.replace(pattern, patterns[pattern])
...     print sentence
...     print replaced
...
When I ate at McDonald's, I felt sick.
When I ate at [RESTAURANT], I felt [FEELING].
I like eating at Burger King.
I like eating at [RESTAURANT].
Wendy's made me feel happy.
[RESTAURANT] made me feel [FEELING].

这仍然需要一些工作(例如，现在，单词 carsick 将变为 car[FEELING])，您可能希望避免所有重复patterns 值，方法是创建另一个您可以按索引引用的替换文本列表，但这也许足以让您入门？