-.TH MHSHOW %manext1% "%nmhdate%" MH.6.8 [%nmhversion%]
+.TH MHSHOW %manext1% "April 9, 2013" "%nmhversion%"
.\"
.\" %nmhwarning%
.\"
.PP
.B mhshow
manipulates multi-media messages as specified in
-RFC\-2045 thru RFC\-2049. Currently
+RFC\-2045 to RFC\-2049. Currently
.B mhshow
only supports
encodings in message bodies, and does not support the encoding of
mail drop format to a folder of
.B nmh
messages, see
-.BR inc (1)).
+.IR inc (1)).
.PP
A part specification consists of a series of numbers separated by dots.
For example, in a multipart content containing three parts, these
this content, it checks if your terminal can display this character
set natively.
.B mhn
-checks this by examining the the environment
+checks this by examining the environment
variable
.BR $MM_CHARSET .
If the value of this environment variable is equal
and it will get
called automatically. (To handle other single-octet character sets,
look at the
-.BR less (1)
+.IR less (1)
manual entry for information about the
.B $LESSCHARDEF
environment variable.)
You must reassemble them first into a normal message using
.BR mhstore .
Check the man page for
-.BR mhstore (1)
+.IR mhstore (1)
for details.
.SS "External Access"
For contents of type message/external-body,
local-file
.IP \(bu 4
mail-server
+.IP \(bu 4
+url
.PP
For the \*(lqanon-ftp\*(rq and \*(lqftp\*(rq access types,
.B mhshow
.PP
The program should terminate with an exit status of zero if the
retrieval is successful, and a non-zero exit status otherwise.
+.PP
+For the \*(lqurl\*(rq access\-type,
+.B mhshow
+will look for the \*(lqnmh-access-url\*(rq
+profile entry. See
+.IR mhstore (1)
+for more details.
+.PP
.SS "The Content Cache"
When
.B mhshow
.B nmh
installation.
.SH FILES
+.B mhshow
+looks for all format files and mhn.defaults in multiple locations:
+absolute pathnames are accessed directly, tilde expansion is done on
+usernames, and files are searched for in the user's
+.I Mail
+directory as specified in their profile. If not found there, the directory
+.RI \*(lq %etcdir% \*(rq
+is checked.
+.PP
.fc ^ ~
.nf
.ta \w'%etcdir%/ExtraBigFileName 'u
^Unseen\-Sequence:~^To name sequences denoting unseen messages
^mhlproc:~^Default program to display message headers
^nmh-access-ftp:~^Program to retrieve contents via FTP
+^nmh-access-url:~^Program to retrieve contents via HTTP
^nmh-cache~^Public directory to store cached external contents
^nmh-private-cache~^Personal directory to store cached external contents
^mhshow-charset-<charset>~^Template for environment to render character sets