1 /* This file is part of the project "Hilbert II" - http://www.qedeq.org" target="alexandria_uri">http://www.qedeq.org
2 *
3 * Copyright 2000-2014, Michael Meyling <mime@qedeq.org>.
4 *
5 * "Hilbert II" is free software; you can redistribute
6 * it and/or modify it under the terms of the GNU General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16 package org.qedeq.kernel.bo.logic.common;
17
18 import org.qedeq.kernel.se.base.list.Element;
19 import org.qedeq.kernel.se.common.ModuleContext;
20
21
22 /**
23 * Resolver for references from formal proof lines. Specific to a certain formal proof.
24 *
25 * @author Michael Meyling
26 */
27 public interface ReferenceResolver {
28
29 /**
30 * Check if a reference is a proved formula.
31 *
32 * @param reference Reference to axiom, definition or proposition.
33 * @return Reference has a proved formula.
34 */
35 public boolean isProvedFormula(String reference);
36
37 /**
38 * Get reference formula in a normalized format.
39 *
40 * @param reference Reference to axiom, definition or proposition.
41 * @return Already proved formula.
42 */
43 public Element getNormalizedReferenceFormula(String reference);
44
45
46 /**
47 * Get formula in a normalized format.
48 *
49 * @param element Local formula to normalize.
50 * @return Normalized formula.
51 */
52 public Element getNormalizedFormula(Element element);
53
54
55 /**
56 * Is this a local proof line reference?
57 *
58 * @param reference Local proof line reference to check for.
59 * @return Is this a local proof line reference for the caller?
60 */
61 public boolean isLocalProofLineReference(String reference);
62
63 /**
64 * Get local for proof line reference.
65 *
66 * @param reference Local proof line reference to check for.
67 * @return Local proof line for the caller. Might be <code>null</code>.
68 */
69 public Element getNormalizedLocalProofLineReference(String reference);
70
71 /**
72 * Module context for proof line reference.
73 *
74 * @param reference Local proof line reference to check for.
75 * @return Local proof line reference for the caller. Might be <code>null</code>.
76 */
77 public ModuleContext getReferenceContext(String reference);
78
79 }