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03: * Copyright (c) 2001-2007, JavaPLT group at Rice University (javaplt@rice.edu)
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14: * names of its contributors may be used to endorse or promote products
15: * derived from this software without specific prior written permission.
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36:
37: package edu.rice.cs.drjava.model.definitions.indent;
38:
39: import edu.rice.cs.drjava.model.AbstractDJDocument;
40:
41: /**
42: * Question rule in the indentation decision tree. Determines if the
43: * current line contains the given character. Does not check
44: * for the character inside comments or quotes.
45: * <p>
46: * <b>Does not work if character being searched for is a '/' or a '*'</b>
47: *
48: * @version $Id: QuestionLineContains.java 4255 2007-08-28 19:17:37Z mgricken $
49: */
50: public class QuestionLineContains extends IndentRuleQuestion {
51: /**
52: * Character to search for
53: */
54: private char _findChar;
55:
56: /**
57: * Constructs a new rule which determines if the line
58: * contains the given character.
59: * @param findChar Character to search for
60: * @param yesRule Rule to use if this rule holds
61: * @param noRule Rule to use if this rule does not hold
62: */
63: public QuestionLineContains(char findChar, IndentRule yesRule,
64: IndentRule noRule) {
65: super (yesRule, noRule);
66: _findChar = findChar;
67: }
68:
69: /**
70: * Determines if the given character exists on the current line.
71: * Does not search in quotes or comments.
72: * <p>
73: * <b>Does not work if character being searched for is a '/' or a '*'</b>
74: * @param doc AbstractDJDocument containing the line to be indented.
75: * @return true if this node's rule holds.
76: */
77: boolean applyRule(AbstractDJDocument doc,
78: Indenter.IndentReason reason) {
79:
80: int charPos = doc.findCharOnLine(doc.getCurrentLocation(),
81: _findChar);
82: if (charPos == AbstractDJDocument.ERROR_INDEX) {
83: return false;
84: } else {
85: return true;
86: }
87: }
88: }
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