private JsonToken nextInObject(boolean firstElement) throws IOException {
/*
* Read delimiters. Either a comma/semicolon separating this and the
* previous name-value pair, or a close brace to denote the end of the
* object.
*/
if (firstElement) {
/* Peek to see if this is the empty object. */
switch (nextNonWhitespace()) {
case '}':
pop();
return token = JsonToken.END_OBJECT;
default:
pos--;
}
} else {
switch (nextNonWhitespace()) {
case '}':
pop();
return token = JsonToken.END_OBJECT;
case ';':
case ',':
break;
default:
throw syntaxError("Unterminated object");
}
}
/* Read the name. */
int quote = nextNonWhitespace();
switch (quote) {
case '\'':
checkLenient(); // fall-through
case '"':
name = nextString((char) quote);
break;
default:
checkLenient();
pos--;
name = nextLiteral(false);
if (name.isEmpty()) {
throw syntaxError("Expected name");
}
}
replaceTop(JsonScope.DANGLING_NAME);
return token = JsonToken.NAME;
}
private JsonToken nextInArray(boolean firstElement) throws IOException {
if (firstElement) {
replaceTop(JsonScope.NONEMPTY_ARRAY);
} else {
/* Look for a comma before each element after the first element. */
switch (nextNonWhitespace()) {
case ']':
pop();
return token = JsonToken.END_ARRAY;
case ';':
checkLenient(); // fall-through
case ',':
break;
default:
throw syntaxError("Unterminated array");
}
}
switch (nextNonWhitespace()) {
case ']':
if (firstElement) {
pop();
return token = JsonToken.END_ARRAY;
}
// fall-through to handle ",]"
case ';':
case ',':
/* In lenient mode, a 0-length literal means 'null' */
checkLenient();
pos--;
value = "null";
return token = JsonToken.NULL;
default:
pos--;
return nextValue();
}
}