X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/46f35e659f3bc3e808a70263bea0ec72624c8a08..9f8418e870a70c264eda1598f2d470e5428c216d:/man/mhstore.man

diff --git a/man/mhstore.man b/man/mhstore.man
index fe50d253..a6129ec2 100644
--- a/man/mhstore.man
+++ b/man/mhstore.man
@@ -1,4 +1,4 @@
-.TH MHSTORE %manext1% "March 2, 2014" "%nmhversion%"
+.TH MHSTORE %manext1% "October 7, 2016" "%nmhversion%"
 .\"
 .\" %nmhwarning%
 .\"
@@ -8,6 +8,8 @@ mhstore \- store contents of MIME messages into files
 .HP 5
 .na
 .B mhstore
+.RB [ \-help ]
+.RB [ \-version ]
 .RI [ +folder ]
 .RI [ msgs ]
 .RB [ \-file
@@ -20,6 +22,9 @@ mhstore \- store contents of MIME messages into files
 .RB [ \-type
 .IR content ]
 \&...
+.RB [ \-prefer
+.IR content ]
+\&...
 .RB [ \-auto " | " \-noauto ]
 .RB [ \-clobber
 .IR always " | " auto " | " suffix " | " ask " | " never ]
@@ -29,8 +34,6 @@ mhstore \- store contents of MIME messages into files
 .IR policy ]
 .RB [ \-check " | " \-nocheck ]
 .RB [ \-verbose " | " \-noverbose ]
-.RB [ \-version ]
-.RB [ \-help ]
 .ad
 .SH DESCRIPTION
 The
@@ -48,13 +51,12 @@ By default,
 will store all the parts of each message.
 Each part will be store in a separate file.  The header fields of
 the message are not stored.  By using the
-.B \-part
+.BR \-part ,
+.BR \-type ,
 and
-.B \-type
-switches, you may limit the scope of
-.B mhstore
-to particular
-subparts (of a multipart content) and/or particular content types.
+.B \-prefer
+switches, you may limit and reorder the set of parts to be stored,
+based on part number and/or content type.
 .PP
 The
 .B \-file
@@ -80,21 +82,40 @@ messages, see
 .PP
 A part specification consists of a series of numbers separated by
 dots.  For example, in a multipart content containing three parts,
-these would be named as 1, 2, and 3, respectively.  If part 2 was
-also a multipart content containing two parts, these would be named
-as 2.1 and 2.2, respectively.  Note that the
+these would be named as 1, 2, and 3, respectively.  If part 2 was also
+a multipart content containing two parts, these would be named as 2.1
+and 2.2, respectively.  Note that the
 .B \-part
-switch is
-effective for only messages containing a multipart content.  If a
-message has some other kind of content, or if the part is itself
+switch is effective for only messages containing a multipart content.
+If a message has some other kind of content, or if the part is itself
 another multipart content, the
 .B \-part
-switch will not prevent
-the content from being acted upon.
+switch will not prevent the content from being acted upon.
+.PP
+The
+.B \-type
+switch can also be used to restrict (or, when used in conjunction with
+.BR \-part ,
+to further restrict) the selection of parts according to content type.
+One or more
+.B \-type
+switches part will only select the first match
+from a multipart/alternative, even if there is more than one
+subpart that matches (one of) the given content type(s).
+.PP
+Using either
+.B \-part
+or
+.B -type
+switches alone will cause either to select
+the part(s) they match.  Using them together will select only
+the part(s) matched by both (sets of) switches.  In other
+words, the result is the intersection, and not the union, of their
+separate match results.
 .PP
 A content specification consists of a content type and a subtype.
-The initial list of \*(lqstandard\*(rq content types and subtypes
-can be found in RFC 2046.
+The initial list of \*(lqstandard\*(rq content types and subtypes can
+be found in RFC 2046.
 .PP
 A list of commonly used contents is briefly reproduced here:
 .PP
@@ -129,6 +150,26 @@ desirable to act on a message/external-body content, then the
 .B \-type
 switch must be used twice: once for message/external-body
 and once for the content externally referenced.
+.PP
+The
+.B \-prefer
+switch will alter the part ordering of multipart/alternative MIME sections
+in order to override the sender-imposed default ordering.
+The
+.B \-prefer
+switch is functionally most important for
+.BR mhshow ,
+but is also implemented in
+.B mhlist
+and
+.B mhstore
+to make common part numbering possible across all three programs.
+See
+.IR mhlist (1)
+and
+.IR mhshow (1)
+for more information on
+.BR \-prefer.
 .SS "Checking the Contents"
 The
 .B \-check
@@ -141,7 +182,6 @@ as a Content-MD5 header field), then
 will attempt to
 verify the integrity of the content.
 .SS "Storing the Contents"
-The
 .B mhstore
 will store the contents of the named messages in
 \*(lqnative\*(rq (decoded) format.  Two things must be determined:
@@ -532,6 +572,23 @@ installation.
 See "Profile Lookup" in
 .IR mh-profile (5)
 for the profile search order, and for how duplicate entries are treated.
+.SH EXAMPLES
+.SS Decoding RFC 2047-encoded file names
+The improper RFC 2047 encoding of file name parameters can be replaced
+with correct RFC 2231 encoding using
+.BR mhfixmsg ,
+either permanently or ephemerally, e.g.,
+.PP
+.RS
+.nf
+mhfixmsg -outfile - | mhstore -auto -clobber ask -file -
+.fi
+.RE
+.PP
+The
+.BI \-clobber ask
+is not necessary, though recommended to avoid silently overwriting an existing
+file.
 .SH FILES
 .B mhstore
 looks for additional profile files in multiple locations: absolute
@@ -565,6 +622,7 @@ is checked.
 .fi
 .SH "SEE ALSO"
 .IR mhbuild (1),
+.IR mhfixmsg (1),
 .IR mhlist (1),
 .IR mhshow (1),
 .IR sendfiles (1)