diff --git a/manual/regexp.rst b/manual/regexp.rst index 4a35802201..fb3b099e32 100644 --- a/manual/regexp.rst +++ b/manual/regexp.rst @@ -83,7 +83,7 @@ shorthand: The upper and lower case sets may match both upper and lowercase if the setting to make searches case insensitive is enabled. Such settings are found, for instance in Preferences->Searching in calibre itself and on the - Search panel in the calibre :guilabel:`Viewer` as well as the calibre :guilabel:`Edit + Search panel in the calibre :guilabel:`E-book viewer` as well as the calibre :guilabel:`Edit book` tool. As a last note on sets, you can also define a set as any character *but* those in the set. You do that by including the character ``"^"`` as the *very first character in the set*. Thus, ``[^a]`` would match any character excluding "a". That's called complementing the set. Those escape sequence shorthands we saw earlier can also be complemented: ``"\D"`` means any non-number character, thus being equivalent to ``[^0-9]``. The other shorthands can be complemented by, you guessed it, using the respective uppercase letter instead of the lowercase one. So, going back to the example ``]*>`` from the previous section, now you can see that the character set it's using tries to match any character except for a closing angle bracket.