// @RubyLevelMethod(name="split")
public RubyValue split(RubyArray args) {
RubyValue r = (null == args) ? GlobalVariables.get("$;") : args.get(0);
Collection /*<String>*/ splitResult;
boolean bSkipFirstEmptyItem = false;
if (r == RubyConstant.QNIL) {
splitResult = split(this, " ");
} else if (r instanceof RubyRegexp) {
RubyRegexp reg = (RubyRegexp) r;
splitResult = split(this, reg, args);
if (reg.getPattern().getPattern().startsWith("(?=")) bSkipFirstEmptyItem = true;
} else if (r instanceof RubyString) {
splitResult = split(this, ((RubyString) r).toString());
} else {
throw new RubyException(
RubyRuntime.ArgumentErrorClass,
"wrong argument type " + r.getRubyClass() + " (expected Regexp)");
}
RubyArray a = new RubyArray(splitResult.size());
int i = 0;
// for (String str : splitResult) {
for (Iterator iter = splitResult.iterator(); iter.hasNext(); ) {
String str = (String) iter.next();
if (!(bSkipFirstEmptyItem && 0 == i && (str == null || str.equals("")))) {
// To conform ruby's behavior, discard the first empty element
a.add(ObjectFactory.createString(str));
}
++i;
}
return a;
}
