On Sun, Jun 05, 2022 at 12:06:52AM -0400, Jason Franklin <ja...@oneway.dev>
wrote:
> Greetings:
>
> I have two questions regarding header display...
>
> First, can the pager display header names in bold if the terminal
> supports it?
>
> Second some senders have weird capitalization of headers. Is it possible
> to display some canonical representation of any given standard header?
>
> To clarify, if the header is sent as "reply-to", I would like to always
> see "Reply-To" in the pager.
>
> Thanks!
>
> --
> Jason
Hi, I don't know about the first part, but the second part
could be done if procmail or similar is used for local
delivery, and it passes incoming messages through a filter
to "correct" the headers to your liking. But it might
be a hassle if you aren't already using procmail.
~/.procmailrc:
:0 fw
| /home/me/bin/fix-mail-headers-filter
/home/me/bin/fix-mail-headers-filter:
#!/usr/bin/env perl
use warnings;
use strict;
# Modify headers if needed (e.g. "reply-to:" to "Reply-To:")
while (<>)
{
# Skip to the following trivial loop after headers
print, last if /^$/;
# Replace lowercase at start of word before colon with uppercase
s/^([^:]*)\b([a-z])/$1\U$2/ while /^[^:]*\b[a-z]/;
print;
}
# Jut print the rest unchanged
print while (<>);
The above was barely tested. Don't use it without testing it on
lots of existing mail (one message at a time - see formail(1))
until you are sure that it works. And note that it doesn't
convert any uppercase to lowercase, only the other way around.
cheers,
raf
