python - 用于在字符串中查找一系列大写单词的正则表达式

Question

text = "This is a TEXT CONTAINING UPPER CASE WORDS and lower case words. This is a SECOND SENTENCE."

pattern = '[A-Z]+[A-Z]+[A-Z]*[\s]+'

re.findall(pattern, text) 给出输出 -->

['TEXT ', 'CONTAINING ', 'UPPER ', 'CASE ', 'WORDS ', 'SECOND ', 'SENTENCE ']

但是，我想要这样的输出 -->

['TEXT CONTAINING UPPER CASE WORDS', 'SECOND SENTENCE']

Answer 1

你可以使用这个正则表达式:

\b[A-Z]+(?:\s+[A-Z]+)*\b

RegEx Demo

正则表达式详细信息:

• \b:字边界
• [A-Z]+:匹配只包含大写字母的单词
• (?:\s+[A-Z]+)*:匹配 1+ 个空格后跟另一个大写字母的单词。匹配该组 0 次或更多次
• \b:单词边界

代码:

>>> s = 'This is a TEXT CONTAINING UPPER CASE WORDS and lower case words. This is a SECOND SENTENCE';
>>> print (re.findall(r'\b[A-Z]+(?:\s+[A-Z]+)*\b', s))
['TEXT CONTAINING UPPER CASE WORDS', 'SECOND SENTENCE']