[groff] 04/25: [man]: Revert addition of `BD` register.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit 3baf0e2f30659b1505a575ed219bf021b0e6458d
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Wed Feb 23 01:56:59 2022 +1100

    [man]: Revert addition of `BD` register.
    
    Revert addition of man(7) `BD` register.  This feature, which I
    introduced in commit ea3b27102f (31 January) doesn't work because
    pdf.tmac normalizes the bookmark depth.  Embedding a man page in a
    larger PDF document with appropriately nested bookmarks is a project
    that will have to await another day (or perhaps already has tools to
    implement it).
    
    * tmac/an.tmac: Do it.
    * tmac/groff_man.7.man.in: De-document it.
---
 ChangeLog               | 12 ++++++++++++
 tmac/an.tmac            |  5 +----
 tmac/groff_man.7.man.in | 14 --------------
 3 files changed, 13 insertions(+), 18 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 6417f7f0..5b22b69b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,15 @@
+2022-02-23  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+       Revert addition of man(7) `BD` register.  This feature, which I
+       introduced in commit ea3b27102f (31 January) doesn't work
+       because pdf.tmac normalizes the bookmark depth.  Embedding a man
+       page in a larger PDF document with appropriately nested
+       bookmarks is a project that will have to await another day (or
+       perhaps already has tools to implement it).
+
+       * tmac/an.tmac: Do it.
+       * tmac/groff_man.7.man.in: De-document it.
+
 2022-02-23  G. Branden Robinson <g.branden.robinson@gmail.com>
 
        * tmac/pdf.tmac: Add string containing the name of the macro
diff --git a/tmac/an.tmac b/tmac/an.tmac
index f5b91869..91462999 100644
--- a/tmac/an.tmac
+++ b/tmac/an.tmac
@@ -193,7 +193,7 @@
 .\" Write a bookmark/anchor/link target $2 at hierarchical depth $1.
 .de an*bookmark
 .  if '\\*[.T]'pdf' \{\
-.    nr an*bookmark-depth \\n[BD]+\\$1
+.    nr an*bookmark-depth \\$1
 .    pdfbookmark \\n[an*bookmark-depth] \\$2
 .    rr an*bookmark-depth
 .  \}
@@ -1117,9 +1117,6 @@
 .\" Set each rendering parameter only if its -[dr] option or man.local
 .\" did not.
 .
-.\" base depth for bookmarks (for embedding man pages in other docs)
-.if !r BD .nr BD 0
-.
 .if '\*[.T]'pdf' \{\
 .  \" FIXME: The following registers are documented only in pdf.tmac.
 .  if !r PDFOUTLINE.FOLDLEVEL .nr PDFOUTLINE.FOLDLEVEL 1
diff --git a/tmac/groff_man.7.man.in b/tmac/groff_man.7.man.in
index 642bccac..8213450b 100644
--- a/tmac/groff_man.7.man.in
+++ b/tmac/groff_man.7.man.in
@@ -3183,19 +3183,6 @@ for less-common choices.
 .
 .
 .TP
-.BI \-rBD= base-bookmark-depth
-Set the depth below which all man pages' PDF bookmarks will be arranged.
-.
-The default is 0;
-changing it may be useful if a man page is to be embedded in a larger
-PDF document.
-.
-This option is only meaningful when producing output for the
-.B pdf
-device.
-.
-.
-.TP
 .B \-rcR=1
 Enable continuous rendering.
 .
@@ -3953,7 +3940,6 @@ implemented the
 and
 .B MF
 strings;
-.BR BD ,
 .BR CS ,
 .BR CT ,
 and