Reverse Regular Expression

Reverse regular expression used for reverse checking of the text before point and used as replacement for not supported look behind feature of the regexp engine. Reverse regular expressions written in reverse order, so for example, if normal regular expression looks like this:

\s+[abc]def

than same reverse regular expression will look like this:

fed[abc]\s+

In HippoEDIT they are used in all lead conditions for Keywords, Words or block Regexp definitions.

<Regexp open="&quot;" open_lead="=elyts" close="&quot;"/>

In example above, open_lead checks if is preceded by word style=.