gbranden pushed a commit to branch master
in repository groff.
commit a8b20742ae130abaf9d5080ec5d9923207a3bee5
Author: G. Branden Robinson <[email protected]>
AuthorDate: Fri Dec 5 05:34:59 2025 -0600
[troff]: Add assertion.
...to check (what I believe to be) an invariant.
* src/roff/troff/input.cpp (define_class_request): Do it.
---
ChangeLog | 5 +++++
src/roff/troff/input.cpp | 4 ++++
2 files changed, 9 insertions(+)
diff --git a/ChangeLog b/ChangeLog
index e838c257a..d6bb8dd71 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2025-12-05 G. Branden Robinson <[email protected]>
+
+ * src/roff/troff/input.cpp (define_class_request): Add assertion
+ to check (what I believe to be) an invariant.
+
2025-12-05 G. Branden Robinson <[email protected]>
* src/roff/troff/input.cpp (define_class_request): Stop warning
diff --git a/src/roff/troff/input.cpp b/src/roff/troff/input.cpp
index a96ba43a0..08fb464f4 100644
--- a/src/roff/troff/input.cpp
+++ b/src/roff/troff/input.cpp
@@ -8733,6 +8733,10 @@ static void define_class_request()
}
if (tok.is_any_character())
child1 = tok.get_charinfo(true /* required */);
+ else
+ // If we encountered a space or nonsense, we cannot be
+ // interpreting a range expression; there should be no "child1".
+ assert(0 /* nullptr */ == child1);
tok.next();
if (0 /* nullptr */ == child1) {
if (!tok.is_newline())
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