name="label-15" id="label-15"><code>shapefile.field_decimals <var>field</var></code></a></dt><!-- RDLabel: "shapefile.field_decimals field" -->
<dd>
returns the width of the <a href="#label-89">attribute field</a>.
Zero is returned for non-Float fields.</dd>
<dt><a name="label-16" id="label-16"><code>shapefile.field_index <var>name</var></code></a></dt><!-- RDLabel: "shapefile.field_index name" -->
<dd>
returns the index of the attribute field matching <var>name</var>, or nil on failure.</dd>
<dt><a name="l