b311480e |
1 | // Created on: 1992-08-18 |
2 | // Created by: Arnaud BOUZY |
3 | // Copyright (c) 1992-1999 Matra Datavision |
973c2be1 |
4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
b311480e |
5 | // |
973c2be1 |
6 | // This file is part of Open CASCADE Technology software library. |
b311480e |
7 | // |
d5f74e42 |
8 | // This library is free software; you can redistribute it and/or modify it under |
9 | // the terms of the GNU Lesser General Public License version 2.1 as published |
973c2be1 |
10 | // by the Free Software Foundation, with special exception defined in the file |
11 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
12 | // distribution for complete text of the license and disclaimer of any warranty. |
b311480e |
13 | // |
973c2be1 |
14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
7fd59977 |
16 | |
42cf5bc1 |
17 | |
18 | #include <Expr_GeneralRelation.hxx> |
7fd59977 |
19 | #include <ExprIntrp.hxx> |
42cf5bc1 |
20 | #include <ExprIntrp_GenRel.hxx> |
7fd59977 |
21 | #include <ExprIntrp_yaccanal.hxx> |
22 | #include <Standard_NoSuchObject.hxx> |
42cf5bc1 |
23 | #include <Standard_Type.hxx> |
24 | #include <TCollection_AsciiString.hxx> |
7fd59977 |
25 | |
92efcf78 |
26 | IMPLEMENT_STANDARD_RTTIEXT(ExprIntrp_GenRel,ExprIntrp_Generator) |
27 | |
7fd59977 |
28 | ExprIntrp_GenRel::ExprIntrp_GenRel () |
29 | { |
30 | done = Standard_False; |
31 | } |
32 | |
33 | Handle( ExprIntrp_GenRel ) ExprIntrp_GenRel::Create() |
34 | { |
35 | return new ExprIntrp_GenRel(); |
36 | } |
37 | |
38 | void ExprIntrp_GenRel::Process (const TCollection_AsciiString& str) |
39 | { |
40 | Handle(ExprIntrp_GenRel) me = this; |
41 | done = Standard_False; |
42 | if (ExprIntrp::Parse(me,str)) { |
43 | if (!ExprIntrp_Recept.IsRelStackEmpty()) { |
44 | myRelation = ExprIntrp_Recept.PopRelation(); |
45 | done = Standard_True; |
46 | } |
47 | else { |
48 | myRelation.Nullify(); |
49 | } |
50 | } |
51 | else { |
52 | myRelation.Nullify(); |
53 | } |
54 | } |
55 | |
56 | Standard_Boolean ExprIntrp_GenRel::IsDone() const |
57 | { |
58 | return done; |
59 | } |
60 | |
61 | Handle(Expr_GeneralRelation) ExprIntrp_GenRel::Relation () const |
62 | { |
63 | if (!done) { |
9775fa61 |
64 | throw Standard_NoSuchObject(); |
7fd59977 |
65 | } |
66 | return myRelation; |
67 | } |
68 | |