/**
* Searches a string in a file.
*
* @param path file path
* @param search codepoints of search string
* @return success flag
*/
private static boolean filterContent(final String path, final int[] search) {
final int cl = search.length;
if (cl == 0) return true;
try (final TextInput ti = new TextInput(new IOFile(path))) {
final IntList il = new IntList(cl - 1);
int c = 0;
while (true) {
if (!il.isEmpty()) {
if (il.remove(0) == search[c++]) continue;
c = 0;
}
while (true) {
final int cp = ti.read();
if (cp == -1 || !XMLToken.valid(cp)) return false;
final int lc = Token.lc(cp);
if (c > 0) il.add(lc);
if (lc == search[c]) {
if (++c == cl) return true;
} else {
c = 0;
break;
}
}
}
} catch (final IOException ex) {
// file may not be accessible
Util.debug(ex);
return false;
}
}