/**
* Creates an XQuery representation for the specified query.
*
* @param query query
* @param ctx database context
* @param root start from root node
* @return query
*/
public static String find(final String query, final Context ctx, final boolean root) {
// treat input as XQuery
if (query.startsWith("/")) return query;
final boolean r = root || ctx.root();
if (query.isEmpty()) return r ? "/" : ".";
// parse user input
final String qu = query.replaceAll(" \\+", " ");
final String[] terms = split(qu);
String pre = "";
String preds = "";
final String tag = "*";
for (String term : terms) {
if (term.startsWith("@=")) {
preds += "[@* = \"" + term.substring(2) + "\"]";
} else if (term.startsWith("=")) {
preds += "[text() = \"" + term.substring(1) + "\"]";
} else if (term.startsWith("~")) {
preds += "[text() contains text \"" + term.substring(1) + "\" using fuzzy]";
} else if (term.startsWith("@")) {
if (term.length() == 1) continue;
preds += "[@* contains text \"" + term.substring(1) + "\"]";
term = term.substring(1);
// add valid name tests
if (XMLToken.isName(token(term))) {
pre += (r ? "" : ".") + "//@" + term + " | ";
}
} else {
preds += "[text() contains text \"" + term + "\"]";
// add valid name tests
if (XMLToken.isName(token(term))) {
pre += (r ? "/" : "") + Axis.DESC + "::*:" + term + " | ";
}
}
}
if (pre.isEmpty() && preds.isEmpty()) return root ? "/" : ".";
// create final string
final TokenBuilder tb = new TokenBuilder();
tb.add(pre + (r ? "/" : "") + Axis.DESCORSELF + "::" + tag + preds);
return tb.toString();
}
