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)
我正在尝试将其他参数添加到正则表达式搜索中,因此它仅在按顺序搜索特定百分比的查询时才有效。
例如,如果我希望它至少有 95% 的覆盖率,它将适用于 query_1
但不适用于 query_2
最佳答案
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'
关于python - 如何将变量错误添加到正则表达式模糊搜索中。 Python,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/17436761/