printtypicalcompilersymbols.java

来自「JAVA在编译原理上的应用。」· Java 代码 · 共 44 行

package lolo.test;

/** Used by all <tt>TypicalCompilerScannerBy...</tt> scanners to print the recognized symbols..
 *
 * @author <a href="http://www.inf.uos.de/bernd" target="_blank">Bernd K&uuml;hl</a>
           (<a href="mailto:[e-mail]">[e-mail]</a>)
 */
public class PrintTypicalCompilerSymbols {
    public static boolean print = false;
    static {
        try {
            print = new Boolean(System.getProperty("PrintTypicalCompilerSymbols.print")).booleanValue();
        } catch (Exception e) {
            System.err.println(e);
        }
    }
    public static void integer(String integer) {
        if (print) System.out.println("found integer -"+new Long(integer)+"-");
    }
    public static void floating(String integer) {
        if (print) System.out.println("found floating number -"+new Double(integer)+"-");
    }
    public static void character(char ch) {
        if (print) System.out.println("found character -"+ch+"-");
    }
    public static void word(String word) {
        if (print) System.out.println("found word -"+word+"-");
    }
    public static void identifier(String identifier) {
        if (print) System.out.println("found identifier -"+identifier+"-");
    }
    public static void whitespace(String whitespace) {
        if (print) System.out.println("found whitespace -"+whitespace+"-");
    }
    public static void comment(String comment) {
        if (print) System.out.println("found comment -"+comment+"-");
    }
    public static void quotedText(String quotedText) {
        if (print) System.out.println("found quotedText -"+quotedText+"-");
    }
    public static void quotedChar(char ch) {
        if (print) System.out.println("found quotedChar -"+ch+"-");
    }
}