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When specifying the EXPANDTABS option in conjunction with the LENGTH=
option on the INFILE statement, the LENGTH= option returns an
incorrect length.  It returns the linesize value instead of the actual
length of the record, thus causing problems when using the $VARYINGw.
informat.

In the following example you receive the note "SAS went to a new line
when input reached past the end of a line." because the width of
$VARYINGw. is based on the incorrect LENGTH= value:

  data test;
    infile indd length=_len expandtabs;
    input line $varying200. _len;
  run;

The circumvention is to add the TRUNCOVER option on the INFILE
statement.

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