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diff --git a/doc/data-io.texi b/doc/data-io.texi
index 8f727e50..3439ca3a 100644
--- a/doc/data-io.texi
+++ b/doc/data-io.texi
@@ -1,4 +1,4 @@
-@node Data Input and Output, System and Portable Files, Expressions, Top
+@node Data Input and Output
 @chapter Data Input and Output
 @cindex input
 @cindex output
@@ -22,7 +22,6 @@ actually be read until a procedure is executed.
 
 @menu
 * BEGIN DATA::                  Embed data within a syntax file.
-* CLEAR TRANSFORMATIONS::       Clear pending transformations.
 * CLOSE FILE HANDLE::           Close a file handle.
 * DATA LIST::                   Fundamental data reading command.
 * END CASE::                    Output the current case.
@@ -64,17 +63,6 @@ white space and exactly one space between the words @code{END} and
 END DATA.
 @end example
 
-@node CLEAR TRANSFORMATIONS
-@section CLEAR TRANSFORMATIONS
-@vindex CLEAR TRANSFORMATIONS
-
-@display
-CLEAR TRANSFORMATIONS.
-@end display
-
-@cmd{CLEAR TRANSFORMATIONS} clears out all pending
-transformations.  It does not cancel the current input program.
-
 @node CLOSE FILE HANDLE
 @section CLOSE FILE HANDLE
 
@@ -351,7 +339,6 @@ DATA LIST FREE
         [(@{TAB,'c'@}, @dots{})]
         [@{NOTABLE,TABLE@}]
         [FILE='file-name']
-        [END=end_var]
         [SKIP=record_cnt]
         /var_spec@dots{}
 
@@ -381,7 +368,7 @@ of quoting is allowed.
 The NOTABLE and TABLE subcommands are as in @cmd{DATA LIST FIXED} above.
 NOTABLE is the default.
 
-The FILE, END, and SKIP subcommands are as in @cmd{DATA LIST FIXED} above.
+The FILE and SKIP subcommands are as in @cmd{DATA LIST FIXED} above.
 
 The variables to be parsed are given as a single list of variable names.
 This list must be introduced by a single slash (@samp{/}).  The set of
@@ -404,7 +391,6 @@ DATA LIST LIST
         [(@{TAB,'c'@}, @dots{})]
         [@{NOTABLE,TABLE@}]
         [FILE='file-name']
-        [END=end_var]
         [SKIP=record_count]
         /var_spec@dots{}
 
@@ -553,6 +539,8 @@ structure.
 
 All this is very confusing.  A few examples should help to clarify.
 
+@c If you change this example, change the regression test1 in
+@c tests/command/input-program.sh to match.
 @example
 INPUT PROGRAM.
         DATA LIST NOTABLE FILE='a.data'/X 1-10.
@@ -565,6 +553,8 @@ The example above reads variable X from file @file{a.data} and variable
 Y from file @file{b.data}.  If one file is shorter than the other then
 the extra data in the longer file is ignored.
 
+@c If you change this example, change the regression test2 in
+@c tests/command/input-program.sh to match.
 @example
 INPUT PROGRAM.
         NUMERIC #A #B.
@@ -588,6 +578,8 @@ The above example reads variable X from @file{a.data} and variable Y from
 field is set to the system-missing value alongside the present value for
 the remaining length of the longer file.
 
+@c If you change this example, change the regression test3 in
+@c tests/command/input-program.sh to match.
 @example
 INPUT PROGRAM.
         NUMERIC #A #B.
@@ -612,6 +604,8 @@ LIST.
 The above example reads data from file @file{a.data}, then from
 @file{b.data}, and concatenates them into a single active file.
 
+@c If you change this example, change the regression test4 in
+@c tests/command/input-program.sh to match.
 @example
 INPUT PROGRAM.
         NUMERIC #EOF.
@@ -639,6 +633,8 @@ LIST.
 The above example does the same thing as the previous example, in a
 different way.
 
+@c If you change this example, make similar changes to the regression
+@c test5 in tests/command/input-program.sh.
 @example
 INPUT PROGRAM.
         LOOP #I=1 TO 50.