如何向正则表达式模糊搜索添加变量错误.Python [英] How to add variable error to regex fuzzy search. Python
本文介绍了如何向正则表达式模糊搜索添加变量错误.Python的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
import regex,re
sequence = 'aaaaaaaaaaaabbbbbbbbbbbbcccccccccccc' #being searched
query = 'aaabbbbbbbbbbbbccc' #100% coverage
query_1 = 'aaaabbbbbbbbcbbbcccc' #95% coverage
query_2 = 'aaabbbbcbbbbbcbccc' #90% coverage
threshold = .95
error = len(query_1) - (len(query_1)*threshold) #for query_1 errors must be <= 1
print regex.search(query_1 + '{e<={}}'.format(error),sequence).group(0)
我正在尝试向正则表达式搜索添加其他参数,因此它仅在按顺序搜索一定比例的查询时才有效.
Im trying to add additional parameters to a regex search so it only works if a certain percentage of the query is in sequence being searched.
例如,如果我希望它至少有 95% 的覆盖率,它适用于 query_1
但它不适用于 query_2
For example, if I wanted it to be at least 95% coverage it would work for query_1
but it would not work for query_2
推荐答案
使用 regex
模块:
import regex
sequence = 'aaaaaaaaaaaabbbbbbbbbbbbcccccccccccc' #being searched
query = 'aaabbbbbbbbbbbbccc' #100% coverage
query_1 = 'aaaabbbbbbbbcbbbcccc' #95% coverage
query_2 = 'aaabbbbcbbbbbcbccc' #90% coverage
threshold = 0.97
queries = (query, query_1, query_2)
for q in queries:
error = int(len(q) - (len(q)*threshold))
m = regex.search(r'(%s){e<=%d}'%(q,error), sequence)
print 'match' if m else 'nomatch'
这篇关于如何向正则表达式模糊搜索添加变量错误.Python的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文