[groff] 32/41: groff_char(7): Document fallbacks.tmac.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit a0ec0042ed7de0831cfc4b49580b09a9066b49fc
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Sat Mar 5 10:48:57 2022 +1100

    groff_char(7): Document fallbacks.tmac.
    
    Also flesh out description of composite.tmac, and point out that both
    files are loaded by the stock troffrc.
    
    Partially addresses Savannah #61958.
---
 man/groff_char.7.man | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/man/groff_char.7.man b/man/groff_char.7.man
index 8e3938b9..a4c530fe 100644
--- a/man/groff_char.7.man
+++ b/man/groff_char.7.man
@@ -1952,11 +1952,24 @@ were used as appropriate to the context.
 .SH Files
 .\" ====================================================================
 .
+The files below are loaded automatically by the default
+.IR troffrc .
+.
+.
 .TP
 .I @MACRODIR@/\:\%composite\:.tmac
+assigns mappings for glyphs after the first in a composite special
+character.
+.
 See subsection \[lq]Accents\[rq] above.
 .
 .
+.TP
+.I @MACRODIR@/\:\%fallbacks\:.tmac
+defines fallback mappings for Unicode code points such as the increment
+sign (U+2206) and upper- and lowercase Roman numerals.
+.
+.
 .\" ====================================================================
 .SH Authors
 .\" ====================================================================