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1 | // Created on: 1992-06-24 |
2 | // Created by: Gilles DEBARBOUILLE |
3 | // Copyright (c) 1992-1999 Matra Datavision |
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4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
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5 | // |
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6 | // This file is part of Open CASCADE Technology software library. |
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7 | // |
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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 |
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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. |
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13 | // |
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14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
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16 | |
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17 | |
18 | #include <TCollection_AsciiString.hxx> |
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19 | #include <Units.hxx> |
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20 | #include <Units_Operators.hxx> |
21 | #include <Units_QuantitiesSequence.hxx> |
22 | #include <Units_Quantity.hxx> |
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23 | #include <Units_Token.hxx> |
24 | #include <Units_TokensSequence.hxx> |
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25 | #include <Units_Unit.hxx> |
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26 | #include <Units_UnitsDictionary.hxx> |
27 | #include <Units_UnitSentence.hxx> |
28 | #include <Units_UnitsSequence.hxx> |
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29 | |
30 | //======================================================================= |
31 | //function : Units_UnitSentence |
32 | //purpose : |
33 | //======================================================================= |
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34 | Units_UnitSentence::Units_UnitSentence (const Standard_CString astring) |
35 | : Units_Sentence(Units::LexiconUnits(), astring) |
36 | { |
37 | Analyse(); |
38 | SetConstants(); |
39 | SetUnits(Units::DictionaryOfUnits()->Sequence()); |
40 | |
41 | } |
42 | |
43 | |
44 | //======================================================================= |
45 | //function : Units_UnitSentence |
46 | //purpose : |
47 | //======================================================================= |
48 | |
49 | Units_UnitSentence::Units_UnitSentence |
50 | (const Standard_CString astring, |
51 | const Handle(Units_QuantitiesSequence)& aquantitiessequence) |
52 | : Units_Sentence(Units::LexiconUnits(Standard_False),astring) |
53 | { |
54 | Analyse(); |
55 | SetConstants(); |
56 | SetUnits(aquantitiessequence); |
57 | } |
58 | |
59 | |
60 | //======================================================================= |
61 | //function : Analyse |
62 | //purpose : |
63 | //======================================================================= |
64 | |
65 | void Units_UnitSentence::Analyse() |
66 | { |
67 | if(Sequence()->Length()==0) |
68 | return; |
69 | |
70 | Standard_Integer index; |
71 | TCollection_AsciiString s; |
72 | Handle(Units_Token) token; |
73 | Handle(Units_Token) previoustoken; |
74 | Handle(Units_Token) currenttoken; |
75 | Handle(Units_Token) nexttoken; |
76 | Handle(Units_Token) lasttoken; |
77 | Handle(Units_TokensSequence) sequence = Sequence(); |
78 | |
79 | currenttoken = sequence->Value(1); |
80 | |
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81 | //std::cout<<std::endl; |
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82 | //for(int ind=1; ind<=sequence->Length(); ind++) { |
83 | // Handle(Units_Token) tok = sequence->Value(ind); |
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84 | // std::cout<<tok->Word()<<" "; |
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85 | //} |
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86 | //std::cout<<std::endl; |
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87 | //for(ind=1; ind<=sequence->Length(); ind++) { |
88 | // Handle(Units_Token) tok = sequence->Value(ind); |
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89 | // std::cout<<tok->Mean()<<" "; |
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90 | //} |
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91 | //std::cout<<std::endl; |
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92 | |
93 | for(index=2;index<=sequence->Length();index++) { |
94 | previoustoken = currenttoken; |
95 | currenttoken = sequence->Value(index); |
96 | s = currenttoken->Mean(); |
97 | if( s=="MU" || s=="U" ) { |
98 | if( previoustoken->Mean()=="M" || previoustoken->Mean()=="MU" ) { |
99 | previoustoken->Mean("M"); |
100 | currenttoken->Mean("U"); |
101 | currenttoken->Value(0.); |
102 | } |
103 | } |
104 | } |
105 | |
106 | for(index=1;index<=sequence->Length();index++) { |
107 | currenttoken = sequence->Value(index); |
108 | s=currenttoken->Mean(); |
109 | if(s=="MU") { |
110 | currenttoken->Mean("U"); |
111 | currenttoken->Value(0.); |
112 | } |
113 | } |
114 | |
115 | currenttoken = sequence->Value(1); |
116 | index = 2; |
117 | |
118 | while(index<=sequence->Length()) { |
119 | previoustoken = currenttoken; |
120 | currenttoken = sequence->Value(index); |
121 | if( previoustoken->Mean()=="M" && currenttoken->Mean()=="U") { |
122 | token=new Units_Token("(", "S"); |
123 | sequence->InsertBefore(index-1,token); |
124 | token = new Units_Token("*", "O"); |
125 | sequence->InsertBefore(++index,token); |
126 | token = new Units_Token(")", "S"); |
127 | sequence->InsertAfter(++index,token); |
128 | index++; |
129 | } |
130 | index++; |
131 | } |
132 | |
133 | index = 1; |
134 | while(index <= sequence->Length()) { |
135 | currenttoken = sequence->Value(index); |
136 | if(currenttoken->Mean()=="P") { |
137 | if( currenttoken->Word()=="sq." || currenttoken->Word()=="cu." ) { |
138 | sequence->Exchange(index,index+1); |
139 | index++; |
140 | } |
141 | token = new Units_Token("**", "O"); |
142 | sequence->InsertBefore(index,token); |
143 | index++; |
144 | } |
145 | index++; |
146 | } |
147 | |
148 | currenttoken = sequence->Value(1); |
149 | index = 2; |
150 | |
151 | while(index<=sequence->Length()) { |
152 | previoustoken = currenttoken; |
153 | currenttoken=sequence->Value(index); |
154 | if(currenttoken->Word()=="(") { |
155 | if( !( previoustoken->Mean()=="O" || previoustoken->Word()=="(" ) ) { |
156 | token=new Units_Token("*", "O"); |
157 | sequence->InsertBefore(index,token); |
158 | index++; |
159 | } |
160 | } |
161 | else if(previoustoken->Word()==")") { |
162 | if( !( currenttoken->Mean()=="O" || currenttoken->Word()==")" ) ) { |
163 | token = new Units_Token("*", "O"); |
164 | sequence->InsertBefore(index,token); |
165 | index++; |
166 | } |
167 | } |
168 | index++; |
169 | } |
170 | |
171 | } |
172 | |
173 | |
174 | //======================================================================= |
175 | //function : SetUnits |
176 | //purpose : |
177 | //======================================================================= |
178 | |
179 | void Units_UnitSentence::SetUnits |
180 | (const Handle(Units_QuantitiesSequence)& aquantitiessequence) |
181 | { |
182 | Standard_Integer index,jindex,kindex; |
183 | Standard_Boolean istheend=0; |
184 | Handle(Units_Quantity) quantity; |
185 | Handle(Units_TokensSequence) sequenceoftokens; |
186 | Handle(Units_Token) currenttoken; |
187 | Handle(Units_UnitsSequence) unitssequence; |
188 | Handle(Units_Unit) unit; |
189 | TCollection_AsciiString symbol; |
190 | |
191 | Handle(Units_QuantitiesSequence) quantitiessequence = aquantitiessequence; |
192 | |
193 | for(index=1; index<=quantitiessequence->Length(); index++) { |
194 | quantity = quantitiessequence->Value(index); |
195 | unitssequence=quantity->Sequence(); |
196 | for(jindex=1; jindex<=unitssequence->Length(); jindex++) { |
197 | unit = unitssequence->Value(jindex); |
198 | sequenceoftokens = Sequence(); |
199 | istheend = Standard_True; |
200 | for(kindex=1; kindex<=sequenceoftokens->Length(); kindex++) { |
201 | currenttoken = sequenceoftokens->Value(kindex); |
202 | if(currenttoken->Mean()=="U") { |
203 | if(currenttoken->Value()==0.) { |
204 | symbol = currenttoken->Word(); |
205 | if(unit == symbol.ToCString()) |
206 | sequenceoftokens->SetValue(kindex,unit->Token()); |
207 | else |
208 | istheend = Standard_False; |
209 | } |
210 | } |
211 | } |
212 | if(istheend) |
213 | break; |
214 | } |
215 | if(istheend) |
216 | break; |
217 | } |
218 | } |