如何获取与正则表达式匹配的片段的行号? [英] How to get line numbers of the snippets matching a regexp?

问题描述

如何获取文件中与给定regexp 匹配的所有文本片段的行号?

How is it possible to obtain the line numbers of all the text snippets matching a given regexp, within a file?

file_content = f.read()

m = re.compile('regexp')
# How to extract line numbers of the matched text snippets?

正则表达式不能跨行.

推荐答案

 with open(somefile, 'r') as f:
     line_numbers = [n for n, line in enumerate(f) if re.search(someRegexp, line)]

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