+run_prog mhshow $msgnum > $actual 2>&1
+check "$expected" "$actual" 'keep first' : bogus quoted-printable data
+
+
+start_test 'locale profile component'
+#### Used LC_ALL above, now use locale profile component instead.
+printf "locale: $LC_ALL\n" >> "${MH}"
+unset LC_ALL
+
+run_prog mhshow $msgnum > $actual 2>&1
+check "$expected" "$actual" : locale profile component
+
+
+#### All of the remaining tests rely on iconv.a
+if test "$ICONV_ENABLED" -eq 0; then
+ finish_test
+ exit $failed
+fi
+
+
+#### RFC 2231 defines the extended value syntax:
+#### extended-initial-value := [charset] "'" [language] "'"
+#### extended-other-values
+#### used below, where language is blank.
+
+start_test 'Encoded parameter value'
+msgfile=`mhpath new`
+msgnum=`basename $msgfile`
+#### Use a charset to exercise the iconv code, if it's available,
+#### in get_param_value(). The Content-Type charset is UTF-8, encoded
+#### to exercise iconv.
+cat > $msgfile <<EOF
+From: foo@example.edu
+To: bar@example.edu
+Subject: test
+MIME-Version: 1.0
+Content-Type: text/plain; charset*=ISO-2022-KR''%1b%24%29%43%55%54%46%2d%38
+Content-Transfer-Encoding: quoted-printable
+Content-Description: bogus quoted-printable data
+Date: Sun, 18 Dec 2005 00:52:39 +0100
+
+4 =C3=B7 2 =3D 2
+EOF
+
+cat > $expected <<EOF
+[ Message inbox:12 ]
+Date: Sun, 18 Dec 2005 00:52:39 +0100
+To: bar@example.edu
+From: foo@example.edu
+Subject: test
+
+MIME-Version: 1.0
+Content-Description: bogus quoted-printable data
+
+[ part - text/plain - bogus quoted-printable data 11B ]
+4 รท 2 = 2
+EOF
+
+run_prog mhshow $msgnum > $actual 2>&1
+check "$expected" "$actual" : encoded parameter value
+
+
+#### mhshow replaces the invalid character in the charset parameter value with
+#### a '?'. So, a charset name of "?us-ascii" is fed to iconv. If
+#### $iconv_elides_question_marks, iconv will normalize that to "us-ascii".
+#### Otherwise, we expect iconv to fail.
+start_test 'replacement character in parameter value'
+cat > $msgfile <<'EOF'
+Subject: invalid parameter value charset
+MIME-Version: 1.0
+Content-Type: text/plain; charset*=invalid''%0Dus-ascii
+EOF
+
+cat > $expected <<EOF
+[ Message inbox:12 ]
+Subject: invalid parameter value charset
+
+MIME-Version: 1.0
+
+[ part - text/plain - 0B ]
+EOF
+
+run_prog mhshow $msgnum > $actual 2>&1
+if [ $iconv_elides_question_marks -eq 1 ]; then
+ check "$expected" "$actual"
+else
+ if grep "Can't convert .*us-ascii to UTF-8" "$actual" >/dev/null; then
+ rm -f "$expected" "$actual"
+ else
+ failed=1
+ fi
+fi
+