// Read from stream a "string". Skips the trailing close-quote
private String str() {
int q = skipWS().qget();
if (q != '"' && q != '\'')
throw new ParseException("Expected one of ' or \" but found '" + (char) q + "'");
StringBuilder sb = new StringBuilder();
int b = get();
while (b != q) {
sb.append((char) b);
b = qget();
}
return sb.toString();
}
// Read from stream a valid PMML token
public String token() {
int b = get();
if (!Character.isJavaIdentifierStart(b))
throw new ParseException("Expected token start but found '" + (char) b + "'");
StringBuilder sb = new StringBuilder();
sb.append((char) b);
b = get();
while (Character.isJavaIdentifierPart(b) || b == ':') {
sb.append((char) b);
b = get();
}
push(b);
return sb.toString();
}
public PMMLParser barf(char tok, char c) {
StringBuilder sb = new StringBuilder();
sb.append("Expected '").append(tok).append("' but found '").append(c).append("'");
int line = 0;
for (int i = 0; i < 512; i++) {
try {
c = (char) get();
} catch (ParseException ioe) {
break;
}
sb.append(c);
if (c == '\n' && line++ > 2) break;
}
throw new ParseException(sb.toString());
}