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我有一个与模板事实中给出的路径匹配的剪辑规则，如果路径匹配，则将与该路径关联的 id 和文本断言到另一个模板中。路径只是字典中的文本条目。路径为“//Document/Sect[2]/P[2]”。我想制定一个这样的规则：

Pfad "//Document/Sect[*]/P[*]"

这样它就可以匹配 //Document/Sect[any number here]/P[any number here]。我找不到与此相关的任何内容，所以如果这是可能的，还是有其他选择？任何帮助，将不胜感激。谢谢！以下是我的规则代码：

rule3= """ 
        (defrule createpara
        (ROW (counter ?A) 
             (ID ?id)                  
             (Text ?text)
             (Path "//Document/Sect/P"))
        
        =>
        (assert (WordPR (counter ?A) 
                        (structure ?id) 
                        (tag "PAR") 
                        (style "Paragraph") 
                        (text ?text))))
        """
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1 回答 1

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CLIPS不支持正则表达式，但您可以通过define_function方法自己添加对它们的支持。

import re
import clips


RULE = """
(defrule example-regex-test
  ; An example rule using the Python function within a test
  (path ?path)
  ; You need to double escape (\\\\) special characters such as []
  (test (regex-match "//Document/Sect\\\\[[0-9]\\\\]/P\\\\[[0-9]\\\\]" ?path))
  =>
  (printout t "Path " ?path " matches the regular expression." crlf))
"""


def regex_match(pattern: str, string: str) -> bool:
    """Match pattern against string returning a boolean True/False."""
    match = re.match(pattern, string)

    return match is not None


env = clips.Environment()
env.define_function(regex_match, name='regex-match')
env.build(RULE)

env.assert_string('(path "//Document/Sect[2]/P[2]")')

env.run()

$ python3 test.py 
Path //Document/Sect[2]/P[2] matches the regular expression.
于 2021-10-25T19:36:46.263 回答