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yakczh
V2EX  ›  Python

对于复杂的正则匹配,用尾递归是不是比较合适

  •  
  •   yakczh · Aug 8, 2013 · 2805 views
    This topic created in 4833 days ago, the information mentioned may be changed or developed.
    比如象嵌套的Table,而且可能很不规范 


    传下一个正则表达式的列表,循环匹配,直到正则列表为空 

    def extract(text,pattenList):
    if len(pattenList) == 0:
    return text
    if len(pattenList) > 0:
    patten=pattenList.pop(0)
    found=filter(text,patten)
    if len(found) > 0:
    return extract(''.join(found),pattenList)
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