add indexesOf methods to StringUtils
------------------------------------
Key: LANG-615
URL: https://issues.apache.org/jira/browse/LANG-615
Project: Commons Lang
Issue Type: New Feature
Components: lang.*
Reporter: Rocky D. Pulley
Priority: Minor
Adding methods to StringUtils which support returning an array of indexes of a
search string.
The following code would return int [0, 18, 45, 57]:
{code}
String s = "This is a test of this string which contains this a lot. this";
int[] idxs = indexesOfIgnoreCase(s, "this");
for (int i=0; i<idxs.length; i++)
{
System.out.println("Pos: " + idxs[i]);
}
{code}
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