package cc.blynk.cli;
/**
* Contains useful helper methods for classes within this package.
*
* @version $Id: Util.java 1443102 2013-02-06 18:12:16Z tn $
*/
final class Util
{
/**
* Remove the hyphens from the beginning of <code>str</code> and
* return the new String.
*
* @param str The string from which the hyphens should be removed.
*
* @return the new String.
*/
static String stripLeadingHyphens(String str)
{
if (str == null)
{
return null;
}
if (str.startsWith("--"))
{
return str.substring(2, str.length());
}
else if (str.startsWith("-"))
{
return str.substring(1, str.length());
}
return str;
}
/**
* Remove the leading and trailing quotes from <code>str</code>.
* E.g. if str is '"one two"', then 'one two' is returned.
*
* @param str The string from which the leading and trailing quotes
* should be removed.
*
* @return The string without the leading and trailing quotes.
*/
static String stripLeadingAndTrailingQuotes(String str)
{
int length = str.length();
if (length > 1 && str.startsWith("\"") && str.endsWith("\"") && str.substring(1, length - 1).indexOf('"') == -1)
{
str = str.substring(1, length - 1);
}
return str;
}
}