| 1 | /*
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| 2 | * 11/07/2004
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| 3 | *
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| 4 | * AbstractTokenMaker.java - An abstract implementation of TokenMaker.
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| 5 | *
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| 6 | * This library is distributed under a modified BSD license. See the included
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| 7 | * RSyntaxTextArea.License.txt file for details.
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| 8 | */
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| 9 | package org.fife.ui.rsyntaxtextarea;
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| 10 |
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| 11 |
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| 12 | /**
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| 13 | * An abstract implementation of the
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| 14 | * {@link org.fife.ui.rsyntaxtextarea.TokenMaker} interface. It should
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| 15 | * be overridden for every language for which you want to provide
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| 16 | * syntax highlighting.<p>
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| 17 | *
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| 18 | * @see Token
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| 19 | *
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| 20 | * @author Robert Futrell
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| 21 | * @version 0.2
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| 22 | */
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| 23 | public abstract class AbstractTokenMaker extends TokenMakerBase {
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| 24 |
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| 25 | /**
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| 26 | * Hash table of words to highlight and what token type they are.
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| 27 | * The keys are the words to highlight, and their values are the
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| 28 | * token types, for example, <code>Token.RESERVED_WORD</code> or
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| 29 | * <code>Token.FUNCTION</code>.
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| 30 | */
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| 31 | protected TokenMap wordsToHighlight;
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| 32 |
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| 33 |
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| 34 | /**
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| 35 | * Constructor.
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| 36 | */
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| 37 | public AbstractTokenMaker() {
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| 38 | wordsToHighlight = getWordsToHighlight();
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| 39 | }
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| 40 |
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| 41 |
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| 42 | /**
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| 43 | * Returns the words to highlight for this programming language.
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| 44 | *
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| 45 | * @return A <code>TokenMap</code> containing the words to highlight for
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| 46 | * this programming language.
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| 47 | */
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| 48 | public abstract TokenMap getWordsToHighlight();
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| 49 |
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| 50 |
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| 51 | /**
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| 52 | * Removes the token last added from the linked list of tokens. The
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| 53 | * programmer should never have to call this directly; it can be called
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| 54 | * by subclasses of <code>TokenMaker</code> if necessary.
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| 55 | */
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| 56 | public void removeLastToken() {
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| 57 | if (previousToken==null) {
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| 58 | firstToken = currentToken = null;
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| 59 | }
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| 60 | else {
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| 61 | currentToken = previousToken;
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| 62 | currentToken.setNextToken(null);
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| 63 | }
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| 64 | }
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| 65 |
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| 66 |
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| 67 | } |
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