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-rw-r--r--man/groff.7.man17
1 files changed, 14 insertions, 3 deletions
diff --git a/man/groff.7.man b/man/groff.7.man
index 0d0539a98..e16ec458f 100644
--- a/man/groff.7.man
+++ b/man/groff.7.man
@@ -10,7 +10,7 @@ language reference
.\" Legal Terms
.\" ====================================================================
.\"
-.\" Copyright (C) 2000-2018, 2020-2022 Free Software Foundation, Inc.
+.\" Copyright (C) 2000-2023 Free Software Foundation, Inc.
.\"
.\" This file is part of groff, the GNU roff type-setting system.
.\"
@@ -2099,9 +2099,20 @@ T}
.
.
.P
-The first of the above,
+If the first argument to an
+.BR .if ,
+.BR .ie ,
+or
+.B .while
+request begins with a non-alphanumeric character apart from
+.B !\&
+(see below);
+it performs an
+.I output comparison test.
+.
+Shown first in the table above,
the
-.I "output comparison operator,"
+.I output comparison operator
interpolates a true value if formatting its comparands
.I s1
and