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-rw-r--r--txr.117
1 files changed, 8 insertions, 9 deletions
diff --git a/txr.1 b/txr.1
index 241d9b2b..d21ca68e 100644
--- a/txr.1
+++ b/txr.1
@@ -38156,12 +38156,16 @@ The
parameter specifies the window contents which are used for the
processing of elements which are closer than
.meta range
-to either end of the sequence. The argument may be a sequence containing
-at least twice
+to either end of the sequence. Except if it is of list type,
+.meta boundary
+must be a sequence containing at least twice
.meta range
number of elements (one less than the window size): if it has additional
elements, they are not used. If it is a list, it may be shorter than twice
-.metn range .
+.metn range ;
+in this case, the value
+.code nil
+is substituted for the missing elements.
The argument
may also be one of the two keyword symbols
.code :wrap
@@ -38173,12 +38177,7 @@ If
.meta boundary
is a sequence, it may be regarded as divided into two pieces of
.meta range
-length. If it is a list of insufficient length, then missing elements
-are supplied as
-.code nil
-to make two
-.metn range 's
-worth of elements. These two pieces then flank
+length. These two pieces then flank
.code sequence
on either end. The left half of
.meta boundary