/**
* Parse and return a structure for a generic URL. Note that non SIP URLs are just stored as a
* string (not parsed).
*
* @return URI is a URL structure for a SIP url.
* @throws ParsException if there was a problem parsing.
*/
public GenericURI uriReference() throws ParseException {
if (debug) dbg_enter("uriReference");
GenericURI retval = null;
Vector<?> vect = lexer.peekNextToken(2);
Token t1 = (Token) vect.elementAt(0);
Token t2 = (Token) vect.elementAt(1);
try {
// System.out.println("token = " + t1.getTokenValue());
// System.out.println("tokenval = " + t1.getTokenType());
if (t1.getTokenType() == TokenTypes.SIP) {
if (t2.getTokenType() == ':') retval = sipURL();
else throw createParseException("Expecting \':\'");
} else if (t1.getTokenType() == TokenTypes.TEL) {
if (t2.getTokenType() == ':') {
retval = telURL();
} else throw createParseException("Expecting \':\'");
} else {
String urlString = uricString();
try {
retval = new GenericURI(urlString);
} catch (ParseException ex) {
throw createParseException(ex.getMessage());
}
}
} finally {
if (debug) dbg_leave("uriReference");
}
return retval;
}
private TelephoneNumber local_phone_number() throws ParseException {
if (debug) dbg_enter("local_phone_number");
TelephoneNumber tn = new TelephoneNumber();
tn.setGlobal(false);
NameValueList nv = null;
String b = null;
try {
b = local_number();
tn.setPhoneNumber(b);
if (lexer.hasMoreChars()) {
Token tok = this.lexer.peekNextToken();
switch (tok.getTokenType()) {
case SEMICOLON:
{
this.lexer.consume(1);
nv = tel_parameters();
tn.setParameters(nv);
break;
}
default:
{
break;
}
}
}
} finally {
if (debug) dbg_leave("local_phone_number");
}
return tn;
}
private IFun condClause() throws Exception {
Token token = tokenizer.nextToken();
TokenType tokenType = token.getTokenType();
IFun condition = null;
if (tokenType == ELSE) {
condition = PjBoolean.True;
} else if (tokenType == IF || tokenType == ELIF || tokenType == WHILE) {
tokenizer.expect(OPEN_PARENTHESIS);
condition = expression();
tokenizer.expect(CLOSE_PARENTHESIS);
} else throw new Exception("unexpected token, " + token);
IFun trueBody = braceBody();
if (token.getTokenType() == WHILE) return new While(condition, trueBody);
else return new Cond(condition, trueBody, null);
}
/**
* Main function. Takes OQL query string as command line parameter and prints token stream version
* of that query to stdout.
*
* @param args Pass an OQL query string on the command line.
*/
public static void main(String args[]) {
Hashtable tokenTypes = new Hashtable();
tokenTypes.put(new Integer(END_OF_QUERY), "END_OF_QUERY");
tokenTypes.put(new Integer(KEYWORD_SELECT), "KEYWORD_SELECT");
tokenTypes.put(new Integer(IDENTIFIER), "IDENTIFIER");
tokenTypes.put(new Integer(KEYWORD_AS), "KEYWORD_AS");
tokenTypes.put(new Integer(COLON), "COLON");
tokenTypes.put(new Integer(KEYWORD_FROM), "KEYWORD_FROM");
tokenTypes.put(new Integer(KEYWORD_IN), "KEYWORD_IN");
tokenTypes.put(new Integer(KEYWORD_WHERE), "KEYWORD_WHERE");
tokenTypes.put(new Integer(KEYWORD_OR), "KEYWORD_OR");
tokenTypes.put(new Integer(KEYWORD_AND), "KEYWORD_AND");
tokenTypes.put(new Integer(EQUAL), "EQUAL");
tokenTypes.put(new Integer(NOT_EQUAL), "NOT_EQUAL");
tokenTypes.put(new Integer(KEYWORD_LIKE), "KEYWORD_LIKE");
tokenTypes.put(new Integer(LT), "LT");
tokenTypes.put(new Integer(LTE), "LTE");
tokenTypes.put(new Integer(GT), "GT");
tokenTypes.put(new Integer(GTE), "GTE");
tokenTypes.put(new Integer(PLUS), "PLUS");
tokenTypes.put(new Integer(MINUS), "MINUS");
tokenTypes.put(new Integer(CONCAT), "CONCAT");
tokenTypes.put(new Integer(TIMES), "TIMES");
tokenTypes.put(new Integer(DIVIDE), "DIVIDE");
tokenTypes.put(new Integer(KEYWORD_MOD), "KEYWORD_MOD");
tokenTypes.put(new Integer(KEYWORD_ABS), "KEYWORD_ABS");
tokenTypes.put(new Integer(KEYWORD_NOT), "KEYWORD_NOT");
tokenTypes.put(new Integer(LPAREN), "LPAREN");
tokenTypes.put(new Integer(RPAREN), "RPAREN");
tokenTypes.put(new Integer(DOLLAR), "DOLLAR");
tokenTypes.put(new Integer(KEYWORD_NIL), "KEYWORD_NIL");
tokenTypes.put(new Integer(KEYWORD_UNDEFINED), "KEYWORD_UNDEFINED");
tokenTypes.put(new Integer(BOOLEAN_LITERAL), "BOOLEAN_LITERAL");
tokenTypes.put(new Integer(LONG_LITERAL), "LONG_LITERAL");
tokenTypes.put(new Integer(DOUBLE_LITERAL), "DOUBLE_LITERAL");
tokenTypes.put(new Integer(CHAR_LITERAL), "CHAR_LITERAL");
tokenTypes.put(new Integer(STRING_LITERAL), "STRING_LITERAL");
tokenTypes.put(new Integer(DATE_LITERAL), "DATE_LITERAL");
tokenTypes.put(new Integer(TIME_LITERAL), "TIME_LITERAL");
tokenTypes.put(new Integer(TIMESTAMP_LITERAL), "TIMESTAMP_LITERAL");
tokenTypes.put(new Integer(KEYWORD_BETWEEN), "KEYWORD_BETWEEN");
Lexer lexer = new Lexer(args[0]);
while (lexer.hasMoreTokens()) {
try {
Token theToken = lexer.nextToken();
String tokenType = (String) tokenTypes.get(new Integer(theToken.getTokenType()));
System.out.println(tokenType + " : " + theToken.getTokenValue());
} catch (Exception e) {
System.out.println(e.toString());
e.printStackTrace(System.out);
break;
}
}
}
/**
* Returns a string representation of the tree using lisp tree notation. (A, B, C, D) means a root
* a with children B, C, and D. (A, (B, C, D), E) means A with a child B who has children C and D,
* and another child E (of A).
*
* @param theTree the Tree to convert to a string
* @param printWhat should be one of the static members NODE_TYPES or NODE_VALUES to tell the
* method what to write in the string.
* @return a string as described above.
*/
public String treeToString(final ParseTreeNode theTree, final int printWhat) {
String retVal = "";
Token curToken = theTree.getToken();
if (printWhat == NODE_TYPES) {
retVal = _tokenTypes.get(new Integer(curToken.getTokenType()));
} else {
retVal = curToken.getTokenValue();
}
if (!theTree.isLeaf()) {
retVal = "( " + retVal;
for (Iterator<ParseTreeNode> iter = theTree.children(); iter.hasNext(); ) {
retVal = retVal + " , " + treeToString(iter.next(), printWhat);
}
retVal = retVal + " )";
}
return retVal;
}
