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-rw-r--r--roff.711
1 files changed, 7 insertions, 4 deletions
diff --git a/roff.7 b/roff.7
index 2fc7638e..edd931fe 100644
--- a/roff.7
+++ b/roff.7
@@ -1472,8 +1472,8 @@ Currently ignored.
Set the maximum stack depth for recursive macros.
This is a Heirloom extension and currently ignored.
.It Ic \&return Op Ar twice
-Exit a macro and return to the caller.
-Currently unsupported.
+Exit the presently executed macro and return to the caller.
+The argument is currently ignored.
.It Ic \&rfschar Ar font glyph ...
Remove font-specific fallback glyph definitions.
Currently unsupported.
@@ -1522,8 +1522,11 @@ This is a Heirloom extension and currently ignored.
Change the soft hyphen character.
Currently ignored.
.It Ic \&shift Op Ar number
-Shift macro arguments.
-Currently unsupported.
+Shift macro arguments
+.Ar number
+times, by default once: \e\e$i becomes what \e\e$i+number was.
+Also decrement \en(.$ by
+.Ar number .
.It Ic \&sizes Ar size ...
Define permissible point sizes.
This is a groff extension and currently ignored.