本文整理匯總了Java中org.antlr.v4.runtime.CommonTokenStream.reset方法的典型用法代碼示例。如果您正苦於以下問題:Java CommonTokenStream.reset方法的具體用法?Java CommonTokenStream.reset怎麽用?Java CommonTokenStream.reset使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類org.antlr.v4.runtime.CommonTokenStream
的用法示例。
在下文中一共展示了CommonTokenStream.reset方法的2個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: invokeParser
import org.antlr.v4.runtime.CommonTokenStream; //導入方法依賴的package包/類
private Node invokeParser(String name, String sql, Function<SqlBaseParser, ParserRuleContext> parseFunction, ParsingOptions parsingOptions)
{
try {
SqlBaseLexer lexer = new SqlBaseLexer(new CaseInsensitiveStream(new ANTLRInputStream(sql)));
CommonTokenStream tokenStream = new CommonTokenStream(lexer);
SqlBaseParser parser = new SqlBaseParser(tokenStream);
parser.addParseListener(new PostProcessor(Arrays.asList(parser.getRuleNames())));
lexer.removeErrorListeners();
lexer.addErrorListener(ERROR_LISTENER);
parser.removeErrorListeners();
parser.addErrorListener(ERROR_LISTENER);
ParserRuleContext tree;
try {
// first, try parsing with potentially faster SLL mode
parser.getInterpreter().setPredictionMode(PredictionMode.SLL);
tree = parseFunction.apply(parser);
}
catch (ParseCancellationException ex) {
// if we fail, parse with LL mode
tokenStream.reset(); // rewind input stream
parser.reset();
parser.getInterpreter().setPredictionMode(PredictionMode.LL);
tree = parseFunction.apply(parser);
}
return new AstBuilder(parsingOptions).visit(tree);
}
catch (StackOverflowError e) {
throw new ParsingException(name + " is too large (stack overflow while parsing)");
}
}
示例2: parseTypeCalculation
import org.antlr.v4.runtime.CommonTokenStream; //導入方法依賴的package包/類
private static ParserRuleContext parseTypeCalculation(String calculation)
{
TypeCalculationLexer lexer = new TypeCalculationLexer(new CaseInsensitiveStream(new ANTLRInputStream(calculation)));
CommonTokenStream tokenStream = new CommonTokenStream(lexer);
TypeCalculationParser parser = new TypeCalculationParser(tokenStream);
lexer.removeErrorListeners();
lexer.addErrorListener(ERROR_LISTENER);
parser.removeErrorListeners();
parser.addErrorListener(ERROR_LISTENER);
ParserRuleContext tree;
try {
// first, try parsing with potentially faster SLL mode
parser.getInterpreter().setPredictionMode(PredictionMode.SLL);
tree = parser.typeCalculation();
}
catch (ParseCancellationException ex) {
// if we fail, parse with LL mode
tokenStream.reset(); // rewind input stream
parser.reset();
parser.getInterpreter().setPredictionMode(PredictionMode.LL);
tree = parser.typeCalculation();
}
return tree;
}