Gedit regular expressions plugin

Install

1. download the plugin from http://halfhourhacks.blogspot.com/2008/03/gedit-regular-expression-plugin.html
2. extract the contents to ~/.gnome2/gedit/plugins/ in such a way that you have this file in this location:
   • ~/.gnome2/gedit/plugins/regex_replace.gedit-plugin
3. restart gedit
4. in the menu: Edit -> Preferences -> plugins -> enable Expression Replace
5. now you should have a "Regular Expression" item in the Search menu.

Other gedit plugins

• http://live.gnome.org/Gedit/Plugins

Examples

Note: where needed an underscore (_) is used to denote a space.

Replace /r/n with /n

Search	Replace with
\r\n	\n

Check:

Search
\r

Remove trailing white-spaces

Search	Replace with
[ \t]{1,9}\n	\n

Split word with capital letter in the middle

Search	Replace with
([a-z,.])([A-Z])	\1 \2

Replace 1 (one) in a non-number with I

Search	Replace with
[^0-9]1[^0-9]	I

Search number > 9

Search
[0-9]{2,9}

Remove hyphenation '-' from words

Search	Replace with
([a-z])-\n{1,9}([a-z])	\1\2

Remove EOL: trailing and leading non-capital letter

Search	Replace with
([a-z,;:])\n{1,9}([a-z])	\1 \2

Remove EOL: leading non-capital letter

Search	Replace with
\n{1,9}([a-z])	_\1

Remove EOL: trailing non-capital letter

Search	Replace with
([a-z,;:])\n{1,9}	\1_

Regular expressions in Office Libre

You can also use regular expressions in Office Libre. Note that variables are noted with a '$'.

Remove paragraph trailing spaces

Search	Replace with
^(.*) {1,9}$	$1