[groff] 04/04: tmac/an-ext.tmac: Fix .ME/.UE portability issue.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit 7c2e5782d95d8520b5bd3b6b71d8b9192fe60e5d
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Thu Jun 4 21:08:16 2020 +1000

    tmac/an-ext.tmac: Fix .ME/.UE portability issue.
    
    * tmac/an-ext.tmac (.ME, .UE): Fix portability issue.  While widely
      supported(1), the \$* escape is not documented in CSTR #54.  If groff
      is not the typesetter, append macro arguments using \$1, \$2, ..., \$9
      instead.  This is an edge case; .ME and .UE are documented as
      supporting only one argument anyway.
    
    (1) AT&T troff (obviously) and Plan 9 troff don't support it.  Heirloom
        Doctools troff added support in its 050816 release (August 2005) and
        neatroff in a commit on 2018-03-02.
---
 ChangeLog        |  8 ++++++++
 tmac/an-ext.tmac | 14 ++++++++------
 2 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index af26fa8..df78ba7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2020-06-04  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+       * tmac/an-ext.tmac (.ME, .UE): Fix portability issue.  While
+       widely supported, the \$* escape is not documented in CSTR #54.
+       If groff is not the typesetter, append macro arguments using
+       \$1, \$2, ..., \$9 instead.  This is an edge case; .ME and .UE
+       are documented as supporting only one argument anyway.
+
 2020-05-19  G. Branden Robinson <g.branden.robinson@gmail.com>
 
        * man/groff.7.man (Numerical Expressions): Fix error: negative
diff --git a/tmac/an-ext.tmac b/tmac/an-ext.tmac
index 5dc9752..49f086d 100644
--- a/tmac/an-ext.tmac
+++ b/tmac/an-ext.tmac
@@ -125,9 +125,10 @@
 .      do HTML-NS "<a href=""\\*(m1"">\\*(m1</a>"
 \&\\$*\"
 .  \}
-.  el \
-\\*(la\\*(m1\\*(ra\\$*\"
-.
+.  el \{\
+.    ie \n(.g \\*(la\\*(m1\\*(ra\\$*\"
+.    el \\*(la\\*(m1\\*(ra\\$1 \\$2 \\$3 \\$4 \\$5 \\$6 \\$7 \\$8 \\$9\"
+.  \}
 .  hy \\n(HY
 ..
 .
@@ -164,9 +165,10 @@
 .      do HTML-NS "<a href=""mailto:\\*(m1"">\\*(m1</a>"
 \&\\$*\"
 .  \}
-.  el \
-\\*(la\\*(m1\\*(ra\\$*\"
-.
+.  el \{\
+.    ie \n(.g \\*(la\\*(m1\\*(ra\\$*\"
+.    el \\*(la\\*(m1\\*(ra\\$1 \\$2 \\$3 \\$4 \\$5 \\$6 \\$7 \\$8 \\$9\"
+.  \}
 .  hy \\n(HY
 ..
 .