 usually
 to prevent it from being value of different type (boolean or number).</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../com/fasterxml/jackson/dataformat/yaml/util/StringQuotingChecker.html#valueHasQuotableChar-java.lang.String-">valueHasQuotableChar</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class 