On 2008-02-03, Mun Johl <[EMAIL PROTECTED]> wrote:
> (Sorry, I didn't provide a sufficient subject on the original post.)
>
> Hi,
>
> I was wondering if there is a way to highlight a mulit-line regex in the
> body of a message? I am trying to use "color body ..." to highlight a
> multi-line description in our bug tracking tool but I'm not certain if
> mutt's highlighting feature even supports such an option. And I didn't
> see anything one way or the other in the manual.
What I have done to achieve this is to create a display_filter using
Perl to add ANSI color escape sequences around the text I wanted to
highlight. I also add "set allow_ansi" in my muttrc so that mutt
will pass these escape sequences through to the terminal. I use
message-hooks to enable the various display_filters. Here's part of
one display_filter.
perl -00 -pe 's/^(IN THIS ISSUE)/\e[1m\1\e[0m/s;
s/^(LOCAL NEWS)/\e[1m\1\e[0m/s;
if (m/^((\(.*\))?[^a-z]*?[a-z]?[^a-z]*?)(\s--\s.*)/s) {
$heading = $1;
$part2 = $3; # Save this for printing
later.
$heading =~ s/^/\e[1m/s; # Turn on highlighting at
start of heading.
$heading =~ s/$/\e[0m/s; # Turn off highlighting at
end of heading.
$heading =~ s/\n/\n\e[1m/gs; # Turn on highlighting at
start of every line within heading.
$_ = $heading . $part2;
}'
This highlights a few section headings in a newsletter, including
in-line headings from the start of a paragraph to the first
occurrence of "--", provided there is no more than one lower-case
letter in that interval.
I wrote this when I had built mutt with slang. It seemed at the
time that either mutt or slang turned off highlighting at the end of
every line, so I had to turn it on at the start of every line within
the highlighted region. I now use ncurses instead of slang, and the
script still works, but I haven't checked to see whether turning on
highlighting at the start of every highlighted line is still
necessary.
HTH,
Gary
