A RegEx question - How to remove a line, including the \r\n? Thanx,

bob_diebel

PeterJones

@bob_diebel

regular expression mode: FIND ^.*\r\n REPLACE empty.

Alan Kilborn

@PeterJones said in A RegEx question - How to remove a line, including the \r\n? Thanx,:

^.*\r\n

I would adjust that to be (?-s)^.*\r\n for maximum safety. :-)

PeterJones

@Alan-Kilborn said in A RegEx question - How to remove a line, including the \r\n? Thanx,:

for maximum safety.

“a line”, “all the lines”, what’s the difference? 😉

PeterJones

@PeterJones said in A RegEx question - How to remove a line, including the \r\n? Thanx,:

“a line”, “all the lines”, what’s the difference? 😉

@bob_diebel ,
In case you didn’t know, the (?-s) that @Alan-Kilborn added makes sure that the regex ignores the state of . matches newline, and instead forces the regex to have . not match newline. Mine would have worked if . matches newline is off, but will match from the beginning to end of the file if . matches newline was on. We regular Forum contributors try (but often fail) to use (?-s) or (?s) so that our answers will work no matter what the setting of . matches newline. But since the .* is rather permissive anyway, a REPLACE ALL would have deleted the whole file no matter what the setting of . matches newline.

Some more caveats: the regex will match any line with zero or more characters followed by the CRLF newline sequence.

My guess is that you really wanted to match some specific line. You will need a regular expression between the ^ (start of line) and \r\n (CRLF) that matches only the line(s) that you want to delete: (?-s)^☒\r\n, where I use ☒ as a placeholder for your regular expression to match the particular line(s).
If one of the lines you want to delete might be at the end of the file and not have a newline, you might need to use something like
- (?-s)^☒(\r\n|\z) – the parentheses make a group, and the | says “OR”, and the \z says “end of file”. (same ☒ notation). But this still has the “feature” that it will leave a final newline (so you might consider it an “empty line”) when the last matched line is the last line with no newline.
- If you want to also delete the last newline, you could use (?-s)^☒\r\n|\r\n☒\z – which says to grab the whole line including CRLF if there’s a CRLF afterward, or grab the previous newline through the end-of-file if the line doesn’t end in CRLF. This will make sure there is no “empty line” at the end of the file.
Another option is to use the Search > Mark dialog with teh “bookmark line” option checked, to mark all the lines; then use Search > Bookmark > Remove Bookmarked Lines to delete the lines.

bob_diebel

@PeterJones Thanx a bunch. Much appreciated