<![CDATA[Search and replace options \n, \r, \t, \o, \x...]]>What are all of these? I discovered that \t was tab, but the others remain a mystery.

]]>https://community.notepad-plus-plus.org/topic/17376/search-and-replace-options-n-r-t-o-xRSS for NodeMon, 13 Apr 2026 16:54:34 GMTFri, 29 Mar 2019 17:48:34 GMT60<![CDATA[Reply to Search and replace options \n, \r, \t, \o, \x... on Sat, 30 Mar 2019 20:29:14 GMT]]>@PeterJones

Ah, okay, so extended mode support both \0 and \o. Good to know.

]]>https://community.notepad-plus-plus.org/post/41741https://community.notepad-plus-plus.org/post/41741Sat, 30 Mar 2019 20:29:14 GMT<![CDATA[Reply to Search and replace options \n, \r, \t, \o, \x... on Sat, 30 Mar 2019 17:20:41 GMT]]>@Alan-Kilborn said:

it appears it truly is \o and not \0 (sorry, Peter)

I cannot know what the OP intended, but according to the source code, the list of characters in that string in the dialog box includes \0, not \o:

And the outdated docs #Extended Mode say,

\0
          the NUL control character (ASCII 0x00). Not supported in regular expressions - use \x00 instead.

Some experiments, with a file that contains multiple 0 characters (and some others), any of the following will find the 0s:

  • Extended: 0
  • Extended: \o060
  • Extended: \x30
  • Regex: 0
  • Regex: \060 (no o prefix)
  • Regex: \x30

Similarly, if you have a file that’s got one or more NUL character

  • Extended: \0
  • Extended: \o000
  • Extended: \x00
  • Regex: \0
  • Regex: \000
  • Regex: \x00

(So I actually disagree with the docs in this regard: in regex, \0 does match the NUL character. Probably, the docs were written under the older regex engine, not the “most recent” Boost 3.5.6 engine.)

]]>https://community.notepad-plus-plus.org/post/41737https://community.notepad-plus-plus.org/post/41737Sat, 30 Mar 2019 17:20:41 GMT<![CDATA[Reply to Search and replace options \n, \r, \t, \o, \x... on Sat, 30 Mar 2019 01:26:54 GMT]]>From @guy038’s posting (see EITHER hyperlink), it appears it truly is \o and not \0 (sorry, Peter). I guess I will have to remember this the next time I want to express a search in octal, as I don’t believe regex will do octal. In other words, I can promptly forget about this. :)

]]>https://community.notepad-plus-plus.org/post/41730https://community.notepad-plus-plus.org/post/41730Sat, 30 Mar 2019 01:26:54 GMT<![CDATA[Reply to Search and replace options \n, \r, \t, \o, \x... on Fri, 29 Mar 2019 23:08:19 GMT]]>ps to @guy038 :
omg, an old ion saliu aka parpaluck thread, what a psycho.
he even really insisted that claudia’s screenshots were all photoshopped.

]]>https://community.notepad-plus-plus.org/post/41728https://community.notepad-plus-plus.org/post/41728Fri, 29 Mar 2019 23:08:19 GMT<![CDATA[Reply to Search and replace options \n, \r, \t, \o, \x... on Fri, 29 Mar 2019 22:47:02 GMT]]>Hi, @art-kautz, @Peterjones, @alan-kilborn and All,

Have a look to these two links, below. The first one is a post of mine, two years ago and the second is from the official ( and a bit out of date ! ) N++ documentation :

https://notepad-plus-plus.org/community/topic/13808/search-replace-of-multiline-text-blocs/2

http://docs.notepad-plus-plus.org/index.php/Searching_And_Replacing#Escape_sequences_supported_in_extended_mode

Best Regards,

guy038

]]>https://community.notepad-plus-plus.org/post/41727https://community.notepad-plus-plus.org/post/41727Fri, 29 Mar 2019 22:47:02 GMT<![CDATA[Reply to Search and replace options \n, \r, \t, \o, \x... on Fri, 29 Mar 2019 20:37:12 GMT]]>@Alan-Kilborn said:

Are all of those the OP mentioned valid there?

The ones the OP mentioned are the escapes listed in the dialog box for what “Extended mode” is. I never use Extended mode, but I assume if the dialog box mentions those escapes for Extended mode, they are valid for Extended mode.

Are there any real advantages to Ext mode or should I just go back to ignoring it. If you know…

From what I understand, it allows you to use characters like ^[].* without their special regex meaning. It might be nice to not have to escape those… but I rarely am searching for special characters, anyway.

]]>https://community.notepad-plus-plus.org/post/41723https://community.notepad-plus-plus.org/post/41723Fri, 29 Mar 2019 20:37:12 GMT<![CDATA[Reply to Search and replace options \n, \r, \t, \o, \x... on Fri, 29 Mar 2019 20:30:14 GMT]]>@PeterJones

I largely ignore Extended mode. Are all of those the OP mentioned valid there? Are there any real advantages to Ext mode or should I just go back to ignoring it. If you know…

]]>https://community.notepad-plus-plus.org/post/41722https://community.notepad-plus-plus.org/post/41722Fri, 29 Mar 2019 20:30:14 GMT<![CDATA[Reply to Search and replace options \n, \r, \t, \o, \x... on Fri, 29 Mar 2019 17:57:19 GMT]]>@Art-Kautz, Welcome to the Community Forums,

Those “escape” sequences allow entering special characters in the search/replace dialog (though it’s a \0 backslash+zero, not \o backslash+letter+o)

They are documented https://www.boost.org/doc/libs/1_55_0/libs/regex/doc/html/boost_regex/syntax/perl_syntax.html#boost_regex.syntax.perl_syntax.escapes .

They are only active when you have the search mode set to Extended or Regular Expression.

]]>https://community.notepad-plus-plus.org/post/41721https://community.notepad-plus-plus.org/post/41721Fri, 29 Mar 2019 17:57:19 GMT