[groff] 24/25: src/roff/troff/reg.cpp: Slightly refactor (`af`).

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit b6efd62933f3c35f5b33a395e4f91d7b0c4d199d
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Fri Nov 3 23:03:46 2023 -0500

    src/roff/troff/reg.cpp: Slightly refactor (`af`).
    
    * src/roff/troff/reg.cpp (alter_format): Slightly refactor.  Push more
      diagnostic work to `tok.description()`, since it is capable of
      describing any token.
---
 ChangeLog              | 6 ++++++
 src/roff/troff/reg.cpp | 5 +----
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index edabe790e..2f0740e03 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2023-11-03  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+       * src/roff/troff/reg.cpp (alter_format): Slightly refactor.
+       Push more diagnostic work to `tok.description()`, since it is
+       capable of describing any token.
+
 2023-11-03  G. Branden Robinson <g.branden.robinson@gmail.com>
 
        * doc/groff.texi (Setting Registers, Strings):
diff --git a/src/roff/troff/reg.cpp b/src/roff/troff/reg.cpp
index c20110f49..3f59ea530 100644
--- a/src/roff/troff/reg.cpp
+++ b/src/roff/troff/reg.cpp
@@ -403,10 +403,7 @@ void alter_format()
   else if (tok.is_newline() || tok.is_eof())
     warning(WARN_MISSING, "missing register format");
   else
-    if (!cscntrl(c))
-      error("invalid register format '%1'", c);
-    else
-      error("invalid register format (got %1)", tok.description());
+    error("invalid register format (got %1)", tok.description());
   skip_line();
 }