/**
* Reads next character or throws an exception if all bytes have been read.
*
* @return next character
* @throws IOException I/O exception
*/
private int consume() throws IOException {
while (true) {
final int ch = input.read();
if (ch == -1) return 0;
if (ch == '%' && pe) { // [69]
final byte[] key = name(true);
final byte[] val = pents.get(key);
if (val == null) error(UNKNOWNPE, key);
check(';');
input.add(val, true);
} else {
return ch;
}
}
}
/**
* Scans an attribute value. [10]
*
* @param ch current character
* @throws IOException I/O exception
*/
private void attValue(final int ch) throws IOException {
boolean wrong = false;
int c = ch;
do {
if (c == 0) error(ATTCLOSE, (char) c);
wrong |= c == '\'' || c == '"';
if (c == '<') error(wrong ? ATTCLOSE : ATTCHAR, (char) c);
if (c == 0x0A) c = ' ';
if (c == '&') {
// verify...
final byte[] r = ref(true);
if (r.length == 1) token.add(r);
else if (!input.add(r, false)) error(RECENT);
} else {
token.add(c);
}
} while ((c = consume()) != quote);
}
/**
* Scans XML text.
*
* @param ch current character
* @throws IOException I/O exception
*/
private void content(final int ch) throws IOException {
type = Type.TEXT;
boolean f = true;
int c = ch;
while (c != 0) {
if (c != '<') {
if (c == '&') {
// scan entity
final byte[] r = ref(true);
if (r.length == 1) token.add(r);
else if (!input.add(r, false)) error(RECENT);
} else {
if (c == ']') {
// ']]>' not allowed in content
if (consume() == ']') {
if (consume() == '>') error(CONTCDATA);
prev(1);
}
prev(1);
}
// add character to cached content
token.add(c);
}
} else {
if (!f && !isCDATA()) {
text = false;
prev(1);
if (chop) token.trim();
return;
}
cDATA();
}
c = consume();
f = false;
}
// end of file
if (!fragment) {
if (!ws(token.finish())) error(AFTERROOT);
type = Type.EOF;
}
}
