[groff] 14/72: [mdoc]: Fix code style nit.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit df316d0cdb07600a3b31a18bdae3d2e37cc2eef9
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Wed Oct 19 13:46:21 2022 -0500

    [mdoc]: Fix code style nit.
    
    * tmac/mdoc/doc-ditroff: Use groff-canonical typeface names in font
      selection escape sequences.  Migrate 'C' to 'CR' and 'CO' to 'CI'.
      (Admittedly, "Courier oblique" is more pedantically correct than
      "Courier italic".  But the iron ball of Unix troff history and its
      style trio [later quartet] of "R", "I", "B" [then "BI"] will not be
      ignored.)
---
 ChangeLog             |  9 +++++++++
 tmac/mdoc/doc-ditroff | 24 ++++++++++++------------
 2 files changed, 21 insertions(+), 12 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 9ede69246..da1f05efc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2022-10-19  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+       * tmac/mdoc/doc-ditroff: Use groff-canonical typeface names in
+       font selection escape sequences.  Migrate 'C' to 'CR' and 'CO'
+       to 'CI'.  (Admittedly, "Courier oblique" is more pedantically
+       correct than "Courier italic".  But the iron ball of Unix troff
+       history and its style trio [later quartet] of "R", "I", "B"
+       {then "BI"} will not be ignored.)
+
 2022-10-19  G. Branden Robinson <g.branden.robinson@gmail.com>
 
        * tmac/mdoc/doc-ditroff: Drop nilpotent type size escape
diff --git a/tmac/mdoc/doc-ditroff b/tmac/mdoc/doc-ditroff
index 66afff287..c241cb7df 100644
--- a/tmac/mdoc/doc-ditroff
+++ b/tmac/mdoc/doc-ditroff
@@ -54,29 +54,29 @@
 .ds doc-caption-font \f[R]
 .ds doc-caption-font2 \f[R]
 .ds doc-Ad-font \f[I]
-.ds doc-Ar-font \f[CO]
+.ds doc-Ar-font \f[CI]
 .ds doc-Cm-font \f[CB]
 .ds doc-Em-font \f[I]
-.ds doc-Er-font \f[C]
-.ds doc-Ev-font \f[C]
-.ds doc-Fa-font \f[CO]
+.ds doc-Er-font \f[CR]
+.ds doc-Ev-font \f[CR]
+.ds doc-Fa-font \f[CI]
 .ds doc-Fd-font \f[CB]
 .ds doc-Fl-font \f[CB]
 .ds doc-Fn-font \f[CB]
-.ds doc-Ft-font \f[CO]
+.ds doc-Ft-font \f[CI]
 .ds doc-Ic-font \f[CB]
-.ds doc-Li-font \f[C]
+.ds doc-Li-font \f[CR]
 .ds doc-Lk-font \f[R]\"
 .ds doc-Me-font \f[B]
 .ds doc-Nm-font \f[CB]
 .ds doc-No-font \f[R]
-.ds doc-Pa-font \f[C]
+.ds doc-Pa-font \f[CR]
 .ds doc-Sh-font \f[B]
 .ds doc-Sy-font \f[B]
 .ds doc-Sx-font \f[B]
 .ds doc-Tn-font-shape \f[R]
 .ds doc-Va-font \f[I]
-.ds doc-Xr-font \f[C]
+.ds doc-Xr-font \f[CR]
 .
 .ds doc-left-parenthesis \f[R]\|(\|\f[]
 .ds doc-right-parenthesis \f[R]\|)\|\f[]
@@ -88,11 +88,11 @@
 .tr *\[**]
 .
 .\" miscellaneous
-.nr doc-subheader-indent (\w'\f[C],'u * 5u)
+.nr doc-subheader-indent (\w'\f[CR],'u * 5u)
 .nr doc-paragraph-space .4v
 .
 .nr doc-digit-width \w'\0'u
-.nr doc-fixed-width \w'\f[C]0'
+.nr doc-fixed-width \w'\f[CR]0'
 .
 .
 .\" NS doc-display-vertical global register
@@ -162,7 +162,7 @@
 .
 .eo
 .de doc-get-width
-.  nr doc-width \w'\f[C]\$1'
+.  nr doc-width \w'\f[CR]\$1'
 .  ie (\n[doc-width] >= \n[doc-fixed-width]) \{\
 .    ie (\n[doc-width] % \n[doc-fixed-width]) \
 .      nr doc-width ((\n[doc-width] / \n[doc-fixed-width]) + 1)
@@ -188,7 +188,7 @@
 .
 .eo
 .de doc-get-arg-width
-.  nr doc-width \w'\f[C]\*[doc-arg\$1]'
+.  nr doc-width \w'\f[CR]\*[doc-arg\$1]'
 .  ie (\n[doc-width] >= \n[doc-fixed-width]) \{\
 .    ie (\n[doc-width] % \n[doc-fixed-width]) \
 .      nr doc-width ((\n[doc-width] / \n[doc-fixed-width]) + 1)