New variable names used as replacements are not automatically created
as variables, but only if used in the code block in a context that
-would create them, e.g.@: on a @cmd{NUMERIC} or @cmd{STRING} command
+would create them, @i{e.g.}@: on a @cmd{NUMERIC} or @cmd{STRING} command
or on the left side of a @cmd{COMPUTE} assignment.
Any command may appear within @subcmd{DO REPEAT}, including nested @subcmd{DO REPEAT}
commands. If @cmd{INCLUDE} or @cmd{INSERT} appears within @subcmd{DO REPEAT},
the substitutions do not apply to the included file.
-If @subcmd{PRINT} is specified on @cmd{END REPEAT}, the commands after substitutions
-are made are printed to the listing file, prefixed by a plus sign
-(@samp{+}).
+If @subcmd{PRINT} is specified on @cmd{END REPEAT}, the commands after
+substitutions are made should be printed to the listing file, prefixed
+by a plus sign (@samp{+}). This feature is not yet implemented.
@node LOOP
@section LOOP
Specify index_var to make that variable count from one value to
another by a particular increment. @var{index_var} must be a pre-existing
numeric variable. @var{start}, @var{end}, and @var{incr} are numeric expressions
-(@pxref{Expressions}.)
+(@pxref{Expressions}.)
During the first iteration, @var{index_var} is set to the value of @var{start}.
During each successive iteration, @var{index_var} is increased by the value of
-@var{incr}. If @var{end} > @var{start}, then the loop terminates
+@var{incr}. If @var{end} > @var{start}, then the loop terminates
when @var{index_var} > @var{end};
otherwise it terminates when @var{index_var} < @var{end}. If @var{incr} is not specified
then it defaults to +1 or -1 as appropriate.
loop, not at the beginning, so that the body of a loop with only a
condition on @cmd{END LOOP} will always execute at least once.
-If neither the index clause nor either condition clause is
-present, then the loop is executed @var{max_loops} (@pxref{SET}) times.
+If the index clause is not
+present, then the loop is executed at most @var{max_loops} (@pxref{SET}) times
+(but possibly fewer, if a condition clause evaluates to false or if
+@cmd{BREAK} executes).
The default value of @var{max_loops} is 40.
@cmd{BREAK} also terminates @cmd{LOOP} execution (@pxref{BREAK}).