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1 package plparser;
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2
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3 import java.io.FileNotFoundException;
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4 import java.io.FileReader;
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5 import java.io.InputStream;
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6 import java.io.InputStreamReader;
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7
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8 public interface PLScanner<Node> {
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9
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10 String filename();
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11 int lineno();
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12
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13 public Token<Node> nextToken();
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14
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15 public boolean hasRemaining();
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16
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17 public PLScanner<Node> pushScannerFile(InputStream newfile, String prompt);
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18 PLScanner<Node> prev();
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19 PLScanner<Node> pushScanner(String exp);
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20 PLScanner<Node> pushScannerFile(String file) throws FileNotFoundException;
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21 PLScanner<Node> popScanner();
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22 public PLScanner<Node> set(String exp);
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23
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24 /*
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25 * Read From File
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26 * We cannot read symbol bigger than Buffersize
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27 */
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28 public PLScanner<Node> setFile(String file)
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29 throws FileNotFoundException;
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30
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31 public PLScanner<Node> set(InputStreamReader file);
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32
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33 public void error(String err);
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34
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35 public Iterable<Token<Node>> scanToken(String exp);
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36
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37 public Iterable<Token<Node>> scanToken(FileReader file);
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38 public Dictionary<Node> dictionary();
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39
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40 } |
