CAntlrHandler.java 文件源码

/**
 * gives the parse tree
 * @return the parse tree
*/
public ParseTree getCParseTree() {
    try {
        String code = pane.getStyledDocument().getText(0, pane.getStyledDocument().getLength());
        lexer.setInputStream(new ANTLRInputStream(code));
        CommonTokenStream commonTokenStream = new CommonTokenStream(lexer);
        cParser.setTokenStream(commonTokenStream);
        return cParser.compilationUnit();
    } catch (BadLocationException ex) {
        Logger.getLogger(CAntlrHandler.class.getName()).log(Level.SEVERE, null, ex);
    }
    return null;
}