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1 package com.thaiopensource.relaxng.impl;
2
3 class EndAttributesFunction extends AbstractPatternFunction {
4 private final ValidatorPatternBuilder builder;
5
6 EndAttributesFunction(ValidatorPatternBuilder builder) {
7 this.builder = builder;
8 }
9
10 public Object  caseOther(Pattern p) {
11 return p;
12 }
13
14 public Object caseGroup(GroupPattern p) {
15 Pattern p1 = p.getOperand1();
16 Pattern p2 = p.getOperand2();
17 Pattern q1 = memoApply(p1);
18 Pattern q2 = memoApply(p2);
19 if (p1 == q1 && p2 == q2)
20 return p;
21 return builder.makeGroup(q1, q2);
22 }
23
24 public Object caseInterleave(InterleavePattern p) {
25 Pattern p1 = p.getOperand1();
26 Pattern p2 = p.getOperand2();
27 Pattern q1 = memoApply(p1);
28 Pattern q2 = memoApply(p2);
29 if (p1 == q1 && p2 == q2)
30 return p;
31 return builder.makeInterleave(q1, q2);
32 }
33
34 public Object caseChoice(ChoicePattern p) {
35 Pattern p1 = p.getOperand1();
36 Pattern p2 = p.getOperand2();
37 Pattern q1 = memoApply(p1);
38 Pattern q2 = memoApply(p2);
39 if (p1 == q1 && p2 == q2)
40 return p;
41 return builder.makeChoice(q1, q2);
42 }
43
44 public Object caseOneOrMore(OneOrMorePattern p) {
45 Pattern p1 = p.getOperand();
46 Pattern q1 = memoApply(p1);
47 if (p1 == q1)
48 return p;
49 return builder.makeOneOrMore(p1);
50 }
51
52 public Object caseAfter(AfterPattern p) {
53 Pattern p1 = p.getOperand1();
54 Pattern q1 = memoApply(p1);
55 if (p1 == q1)
56 return p;
57 return builder.makeAfter(q1, p.getOperand2());
58 }
59
60 public Object caseAttribute(AttributePattern p) {
61 return builder.makeNotAllowed();
62 }
63
64 final Pattern memoApply(Pattern p) {
65 return apply(builder.getPatternMemo(p)).getPattern();
66 }
67
68 PatternMemo apply(PatternMemo memo) {
69 return memo.endAttributes(this);
70 }
71
72 ValidatorPatternBuilder getPatternBuilder() {
73 return builder;
74 }
75 }
76 |
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