[plug] Pager line-based filtering

[James Devenish]

Hi,

This is more of an open-source command-line question than a Linux
question. I use GNU `less` as my pager and when using it to view line-
based data (e.g. log files), I often want to filter out a lot of lines
(or highlight specific lines). Currently, if I want to do this, I resort
to pressing 'v' and doing this work within `vim`. So, does anyone know
of a terminal pager---e.g. a recent version of less---that will allow me
to set filters (or highlighting of lines) using regular expressions? I
have a feeling that I *used* to use such a programme regularly but I
have now forgotten its name :-P