[groff] 49/51: [mdoc]: Handle LL and LT registers as man(7) does.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit a06283e8cbd8146f77573d9083a333ab48f0ed85
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Fri Sep 9 06:16:33 2022 -0500

    [mdoc]: Handle LL and LT registers as man(7) does.
    
    * tmac/mdoc/doc-ditroff (doc-setup-page-layout): In troff mode, if the
      user does not define the `LL` register, use the device's default line
      length, not 6.5 inches.  If the user does not define the `LT`
      register, make the default line length for titles the same as the
      regular line length, not 6.5 inches independently of it.  This is
      consistent with man(7)'s handling of `LL` and `LT`.
---
 ChangeLog             | 10 ++++++++++
 tmac/mdoc/doc-ditroff |  4 ++--
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 743f0a5e2..f150883fa 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+2022-09-09  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+       * tmac/mdoc/doc-ditroff (doc-setup-page-layout):  In troff mode,
+       if the user does not define the `LL` register, use the device's
+       default line length, not 6.5 inches.  If the user does not
+       define the `LT` register, make the default line length for
+       titles the same as the regular line length, not 6.5 inches
+       independently of it.  This is consistent with man(7)'s handling
+       of `LL` and `LT`.
+
 2022-09-09  G. Branden Robinson <g.branden.robinson@gmail.com>
 
        [mdoc]: Support `AD` string to set default adjustment mode.
diff --git a/tmac/mdoc/doc-ditroff b/tmac/mdoc/doc-ditroff
index 4f68d7f08..7baeb7117 100644
--- a/tmac/mdoc/doc-ditroff
+++ b/tmac/mdoc/doc-ditroff
@@ -154,12 +154,12 @@
 .  ie r LL \
 .    ll \n[LL]u
 .  el \
-.    ll 6.5i
+.    ll \n[.l]u
 .
 .  ie r LT \
 .    lt \n[LT]u
 .  el \
-.    lt 6.5i
+.    lt \n[.l]u
 .
 .  po 1i
 .