tmac: introduce real manual reference macro instead of overloading IR

The overloading of IR emits magic \X'...' sequences that turn into HTML manual links.
But not all such IR invocations should be manual links;
those had to be written to avoid the IR macro before.
Worse, the \X'...' ending the IR causes troff to emit only a single space after a period.

Defining a new IM macro for manual references fixes both problems.

Fixes #441.

1 files changed, 9 insertions, 9 deletions

diff --git a/man/man1/9term.1 b/man/man1/9term.1
index b0706139..bf0ee27f 100644
--- a/man/man1/9term.1
+++ b/man/man1/9term.1
@@ -58,7 +58,7 @@ uses the imported value of
 .B $font
 if set; otherwise it uses the graphics system default.
 (See
-.IR font (7)
+.IM font (7)
 for a full discussion of font syntaxes.)
 .PP
 .I 9term
@@ -96,7 +96,7 @@ Characters typed on the keyboard replace the selected text;
 if this text is not empty, it is placed in a
 .I snarf buffer
 common to all windows but distinct from that of
-.IR sam (1).
+.IM sam (1) .
 .PP
 Programs access the text in the window at a single point
 maintained automatically by
@@ -163,7 +163,7 @@ and erases the character before the word.
 .PP
 An ACK character (control-F) or Insert character triggers file name completion
 for the preceding string (see
-.IR complete (3)).
+.IM complete (3) ).
 .PP
 Text may be moved vertically within the window.
 A scroll bar on the left of the window shows in its clear portion what fragment of the
@@ -201,7 +201,7 @@ EOT, so the terminal must be set up with EOT
 as the ``eof'' character.
 .I 9term
 runs
-.IR stty (1)
+.IM stty (1)
 to establish this when the terminal is created.
 .PP
 .I 9term
@@ -231,13 +231,13 @@ are a few common ones where they fall short.
 First, programs using the GNU readline library typically
 disable terminal echo and perform echoing themselves.
 The most common example is the shell
-.IR bash (1).
+.IM bash (1) .
 Disabling the use of readline with
 .RB `` "set +o emacs" ''
 .RI [ sic ]
 usually restores the desired behavior.
 Second, remote terminal programs such as
-.IR ssh (1)
+.IM ssh (1)
 typically run with echo disabled, relying on the
 remote system to echo characters as desired.
 Plan 9's
@@ -279,7 +279,7 @@ The
 menu item sends the contents of the selection (not the snarf buffer) to the
 .I plumber
 (see
-.IR plumb (1)).
+.IM plumb (1) ).
 If the selection is empty, it sends the white-space-delimited text
 containing the selection (typing cursor).
 A typical use of this feature is to tell the editor to find the source of an error
@@ -323,7 +323,7 @@ Not a
 .IR 9term 
 bug:
 when running
-.IR bash (1)
+.IM bash (1)
 in 
 .RB `` "set +o emacs" ''
 mode, its handling of interrupts is broken.
@@ -334,4 +334,4 @@ character typed.
 .PP
 Unix makes everything harder.
 .SH SEE ALSO
-.IR wintext (1)
+.IM wintext (1)