/**
* Evaluates the replace function.
*
* @param val input value
* @param ctx query context
* @return function result
* @throws QueryException query exception
*/
private Item replace(final byte[] val, final QueryContext ctx) throws QueryException {
final byte[] rep = checkStr(expr[2], ctx);
for (int i = 0; i < rep.length; ++i) {
if (rep[i] == '\\') {
if (i + 1 == rep.length || rep[i + 1] != '\\' && rep[i + 1] != '$') FUNREPBS.thrw(info);
++i;
}
if (rep[i] == '$'
&& (i == 0 || rep[i - 1] != '\\')
&& (i + 1 == rep.length || !digit(rep[i + 1]))) FUNREPDOL.thrw(info);
}
final Pattern p = pattern(expr[1], expr.length == 4 ? expr[3] : null, ctx);
if (p.pattern().isEmpty()) REGROUP.thrw(info);
String r = string(rep);
if ((p.flags() & Pattern.LITERAL) != 0) {
r = SLASH.matcher(BSLASH.matcher(r).replaceAll("\\\\\\\\")).replaceAll("\\\\\\$");
}
try {
return Str.get(p.matcher(string(val)).replaceAll(r));
} catch (final Exception ex) {
if (ex.getMessage().contains("No group")) REGROUP.thrw(info);
throw REGPAT.thrw(info, ex);
}
}
/** Tests the specified instance. */
@Test
public void test() {
final StringBuilder sb = new StringBuilder();
int fail = 0;
for (final Object[] qu : queries) {
final boolean correct = qu.length == 3;
final String query = qu[correct ? 2 : 1].toString();
final Value cmp = correct ? (Value) qu[1] : null;
final QueryProcessor qp = new QueryProcessor(query, context);
try {
final Value val = qp.value();
if (!correct || !new DeepCompare().equal(val, cmp)) {
sb.append("[" + qu[0] + "] " + query);
String s = correct && cmp.size() != 1 ? "#" + cmp.size() : "";
sb.append("\n[E" + s + "] ");
if (correct) {
final String cp = cmp.toString();
sb.append('\'');
sb.append(cp.length() > 1000 ? cp.substring(0, 1000) + "..." : cp);
sb.append('\'');
} else {
sb.append("error");
}
final TokenBuilder types = new TokenBuilder();
for (final Item it : val) types.add(it.type.toString()).add(" ");
s = val.size() == 1 ? "" : "#" + val.size();
sb.append("\n[F" + s + "] '" + val + "', " + types + details() + '\n');
++fail;
}
} catch (final Exception ex) {
final String msg = ex.getMessage();
if (correct || msg == null || msg.contains("mailman")) {
final String cp = correct && cmp.data() != null ? cmp.toString() : "()";
sb.append(
"["
+ qu[0]
+ "] "
+ query
+ "\n[E] "
+ cp
+ "\n[F] "
+ (msg == null ? Util.className(ex) : msg.replaceAll("\r\n?|\n", " "))
+ ' '
+ details()
+ '\n');
ex.printStackTrace();
++fail;
}
} finally {
qp.close();
}
}
if (fail != 0) fail(fail + " Errors. [E] = expected, [F] = found:\n" + sb.toString().trim());
}