如何删除多于x个单词的行？ 在记事本++正则表达式中

Question

I want to sort a huge list for a project, and I need to delete all the lines from long lists that contain more than 4 words. anyone knows how could i do this in notepad++? thanks.

Answer 1

You could come up with sth. like:

^(?:\b\w+[^\w\r\n]*){4,}$
# ^   - anchor the expression to the beginning of a line
# (?: - a non capturing group
# \b  - a word boundary
# \w+ - match word characters greedily
# [^\w\r\n] - do not match any of these character (classes) 
# the construct {4,} repeats this pattern 4 or more times
# $   - match the end of the line

You need to have the multiline mode on. See a demo on regex101.com .
Thanks to @SebastianProske for spotting an error in the original expression.

Answer 2

\n?^(\S+[^\S\n]+){3,}\S+.*$

This works in TextWrangler; It might work in notepad++.