List<ANTLRMessage> checkLexerDFA(String gtext, String modeName, String expecting)
throws Exception {
ErrorQueue equeue = new ErrorQueue();
LexerGrammar g = new LexerGrammar(gtext, equeue);
g.atn = createATN(g);
// LexerATNToDFAConverter conv = new LexerATNToDFAConverter(g);
// DFA dfa = conv.createDFA(modeName);
// g.setLookaheadDFA(0, dfa); // only one decision to worry about
//
// String result = null;
// if ( dfa!=null ) result = dfa.toString();
// assertEquals(expecting, result);
//
// return equeue.all;
return null;
}
public LexerInterpreter createLexerInterpreter(CharStream input) {
if (this.isParser()) {
throw new IllegalStateException(
"A lexer interpreter can only be created for a lexer or combined grammar.");
}
if (this.isCombined()) {
return implicitLexer.createLexerInterpreter(input);
}
char[] serializedAtn = ATNSerializer.getSerializedAsChars(atn);
ATN deserialized = new ATNDeserializer().deserialize(serializedAtn);
return new LexerInterpreter(
fileName,
Arrays.asList(getTokenDisplayNames()),
Arrays.asList(getRuleNames()),
((LexerGrammar) this).modes.keySet(),
deserialized,
input);
}
static {
lexerGrammar.add("\\(", TokenType.OPEN_PAREN);
lexerGrammar.add("\\)", TokenType.CLOSE_PAREN);
lexerGrammar.add("&&", TokenType.AND);
lexerGrammar.add("\\|\\|", TokenType.OR);
lexerGrammar.add("==", TokenType.EQUAL);
lexerGrammar.add("!=", TokenType.NOT_EQUAL);
lexerGrammar.add(">=", TokenType.GREATER_THAN_OR_EQUAL);
lexerGrammar.add("<=", TokenType.LESS_THAN_OR_EQUAL);
lexerGrammar.add(">", TokenType.GREATER_THAN);
lexerGrammar.add("<", TokenType.LESS_THAN);
lexerGrammar.add(
"(\"[^\"\\\\\\r\\n]*(?:\\\\.[^\"\\\\\\r\\n]*)*\")|\\d+|true|false", TokenType.CONSTANT);
lexerGrammar.add("[a-zA-Z][a-zA-Z0-9_]*", TokenType.FIELD_NAME);
}
