[groff] 02/02: [docs]: Clarify "text font" concept.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit e78dab3a1daa2550c541b0e5bdeb784a8418f7d9
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Fri Jun 9 00:15:46 2023 -0500

    [docs]: Clarify "text font" concept.
---
 doc/groff.texi  | 10 ++++++----
 man/groff.7.man | 10 +++++++++-
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/doc/groff.texi b/doc/groff.texi
index dc8e4be0c..012fde503 100644
--- a/doc/groff.texi
+++ b/doc/groff.texi
@@ -10102,10 +10102,12 @@ upright and slanted shapes with normal and heavy 
stroke weights:
 @slanted{bold-italic}.  For linguistic text, GNU @code{troff} groups
 typefaces into @dfn{families} containing each of these
 styles.@footnote{Font designers prepare families such that the styles
-share esthetic properties.}   A @dfn{text font} is a combination of a
-family with a style.  On typesetting devices, at least one @dfn{special
-font} is available, comprising @dfn{unstyled} glyphs for mathematical
-operators and other purposes.
+share esthetic properties.}  A @dfn{text font} is thus often a family
+combined with a style, but it need not be:@: consider the @code{ps} and
+@code{pdf} devices' @code{ZCMI} (Zapf Chancery Medium italic).  On
+typesetting devices, at least one @dfn{special font} is available,
+comprising @dfn{unstyled} glyphs for mathematical operators and other
+purposes.
 
 @cindex font description file
 @cindex description file, font
diff --git a/man/groff.7.man b/man/groff.7.man
index 251ce4dc7..209706b54 100644
--- a/man/groff.7.man
+++ b/man/groff.7.man
@@ -6615,7 +6615,15 @@ properties.)
 .
 A
 .I "text font"
-is a combination of a family with a style.
+is thus often a family combined with a style,
+but it need not be:
+consider the
+.B ps
+and
+.B pdf
+devices'
+.B ZCMI
+(Zapf Chancery Medium italic).
 .
 On typesetting devices,
 at least one