CODEWITHSUNDEEP
regexnotepad++regex-negationregex-lookarounds
Pete_ch
Pete_ch

Reputation: 1321

Notepad++ use both regular expressions and extended search

I need to find all \r\n that do not precede the letter M;
Seems I can't do this:

\r\n[^M]

I can only do \r\n with extended search selected or [^M] with regular expressions selected; but not together.

Upvotes: 1

Views: 5167

Answers (2)

Unihedron
Unihedron

Reputation: 11041

You should instead use this regex:

\R(?!M)

Explanation:

  • \R Any Unicode newline sequence.
  • (?!M) Negative Lookahead: Assert "M" cannot be matched.

Upvotes: 4

J0e3gan
J0e3gan

Reputation: 8938

\r\n is valid with Regular expression checked in the Find tab too - i.e. not just with Extended checked: why not just use \r\n[^M] with Regular expression checked?

Given the following test text...

whatever
M
whatever
G
foo

..., \r\n[^M] yields the expected results below...

Search "\r\n[^M]" (3 hits in 1 file)
  new  2 (3 hits)
    Line 2: M
    Line 3: whatever
    Line 4: G

..., the matches being at the ends of the matched lines of course.

Upvotes: 1

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