Notepad++ RegExp Help

 

Author : Georg Dembowski

Notepad++ RegExp List

Note: In case you have the plugins installed, try CONTROL+R or in
the Menu Plugins � TextFX Quick - Find/Replace to get a sophisticated
dialogue including a drop down for regular expressions and multi line
search/replace.

 

In a regular expression, special characters interpreted are:

.	Matches any character
(	This marks the start of a region for tagging a match; so what's inside ( ) you can use in "replace with" using /1, /2 etc.
)	This marks the end of a tagged region.
/n	Where n is 1 through 9 refers to the first through ninth tagged region when replacing. For example, if the search string was Fred([1-9])XXX and the replace string was Sam/1YYY , when applied to Fred2XXX this would generate Sam2YYY .
/<	This matches the start of a word using Scintilla's definitions of words.
/>	This matches the end of a word using Scintilla's definition of words.
/x	This allows you to use a character x that would otherwise have a special meaning. For example, /[ would be interpreted as [ and not as the start of a character set.
[...]	This indicates a set of characters, for example, [abc] means any of the characters a, b or c. You can also use ranges, for example [a-z] for any lower case character.
[^...]	The complement of the characters in the set. For example, [^A-Za-z] means any character except an alphabetic character.
^	This matches the start of a line (unless used inside a set, see above).
$	This matches the end of a line.
*	This matches 0 or more times. For example, Sa*m matches Sm , Sam , Saam , Saaam and so on.
+	This matches 1 or more times. For example, Sa+m matches Sam , Saam , Saaam and so on.

Source of this information is the Scintilla edit component help, but it was adapted to Notepad++ behaviour.

 

Notepad++ RegExp Examples

Important

• You have to check the box "regular expression" in search
  & replace dialog
• When copying the strings out of here, pay close attention
  not to have additional spaces in front of them! Then the RegExp will
  not work!

You use a MediaWiki (e.g. Wikipedia,
Wikitravel) and
want to make all headings one "level higher", so a H2 becomes
a H1 etc.

1. Search ^=(=)
   Replace with /1
   Click "Replace all" to find all headings2...9 (two equal sign
   characters are required) which begin at line beginning (^) and to
   replace the two equal sign characters by only the last of the two, so
   eleminating one and having one remaining.
2. Search =(=)$
   Replace with /1
   Click "Replace all" to find
   all headings2...9 (two equal sign characters are required) which end
   at line ending ($) and to replace the two equal sign characters by
   only the last of the two, so eleminating one and having one remaining.
3. == title == became =
title =, you're done

You have a document with a lot of dates, which are in German date
format (dd.mm.yy) and you'd like to transform them to sortable format
(yy-mm-dd). Don't be afraid by the length of the search term – it's
long, but consiting of pretty easy and short parts.

1. Search ([^0-9])([0123][0-9])/.([01][0-9])/.([0-9][0-9])([^0-9])
   Replace with /1/4-/3-/2/5
   Click "Replace all" to fetch
   • the day, whose first number can only be 0, 1, 2 or 3
   • the month, whose first number can only be 0 or 1
   • but only if the spearator is . and not any
     charcter ( .
     versus /. )
   • but only if no numbers are sourrounding the date, as
     then it
     might be an IP address instead of a date

   and to write all of this in the opposite order, except for the
   surroundings. Pay attention: Whatever SEARCH matches will be deleted
   and only replaced by the stuff in the REPLACE field, thus it is
   mandtory to have the surroundings in the REPLACE field as well!

2. 31.12.97 became 97-12-31
   and 14.08.05 became 05-08-14
   and the IP address 14.13.14.14 did not
   change, you're done

You have printed in windows a file list using dir /b/s
>filelist.txt to the file filelist.txt and want to
make local URLs out of them.

1. Open filelist.txt with Notepad++
2. Search //
   Replace with /
   Click "Replace all" to change windows path separator char / 
   into URL path separator char / 
3. Search ^(.*)$
   Replace with file:////1
   Click "Replace all" to add file:/// in the
   beginning of all lines
4. Depended on your requirements, preceed to escape some
   characters like space to %20 etc.
5. C:/!/aktuell.csv became file:///C:/!/aktuell.csv,
   you're done

 

Another Search Replace Example

[Data]
EU AX ALA 248 �land Islands
EU AL ALB 008 Albania, People's Socialist Republic of
AF DZ DZA 012 Algeria, People's Democratic Republic of
OC AS ASM 016 American Samoa
EU AD AND 020 Andorra, Principality of
AF AO AGO 024 Angola, Republic of
NA AI AIA 660 Anguilla
AN AQ ATA 010 Antarctica (the territory South of 60 deg S)
NA AG ATG 028 Antigua and Barbuda
SA AR ARG 032 Argentina, Argentine Republic
AS AM ARM 051 Armenia
NA AW ABW 533 Aruba
OC AU AUS 036 Australia, Commonwealth of

[SearchPattern]
([A-Z]+) ([A-Z]+) ([A-Z]+) ([0-9]+) (.*)

[ReplacePattern]
/1,/2,/3,/4,/5

[FinalData]
AS,AF,AFG,004,Afghanistan
EU,AX,ALA,248,�land Islands
EU,AL,ALB,008,Albania, People's Socialist Republic of
AF,DZ,DZA,012,Algeria, People's Democratic Republic of
OC,AS,ASM,016,American Samoa
EU,AD,AND,020,Andorra, Principality of
AF,AO,AGO,024,Angola, Republic of
NA,AI,AIA,660,Anguilla
AN,AQ,ATA,010,Antarctica (the territory South of 60 deg S)
NA,AG,ATG,028,Antigua and Barbuda
SA,AR,ARG,032,Argentina, Argentine Republic
AS,AM,ARM,051,Armenia
NA,AW,ABW,533,Aruba
OC,AU,AUS,036,Australia, Commonwealth of