1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/*
Code for unpacking MPC packed provisional designations and unit tests for it
Copyright (C) 2010 Bogdan Marinov
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <QtTest/QtTest>
#include <QChar>
#include <QString>
#include <QRegularExpression>
class TestClass: public QObject
{
Q_OBJECT
public:
//Without any additional information, one can distinguish between
//packed designations of comets and minor planets only by the last
//character: 0 or lowecase letter for comets, uppercase letter for asteroids
QString unpackMinorPlanetProvisionalDesignation (QString packedDesignation, bool returnHTML = false);
//Comet designations don't require subscript, so no HTML option is needed.
QString unpackCometProvisionalDesignation (QString packedDesignation);
private:
int unpackYearNumber (QChar prefix, int lastTwoDigits);
int unpackAlphanumericNumber (QChar prefix, int lastDigit);
private slots:
void testUnpackingAsteroids();
void testUnpackingAsteroidsHTML();
void testUnpackingComets();
};
int TestClass::unpackYearNumber (QChar prefix, int lastTwoDigits)
{
int year = lastTwoDigits;
if (prefix == 'I')
year += 1800;
else if (prefix == 'J')
year += 1900;
else if (prefix == 'K')
year += 2000;
else
year = 0; //Error
return year;
}
//Can be used both for minor planets and comets with no additional modification,
//as the regular expression for comets will match only capital letters.
int TestClass::unpackAlphanumericNumber (QChar prefix, int lastDigit)
{
int cycleCount = lastDigit;
if (prefix.isDigit())
cycleCount += prefix.digitValue() * 10;
else if (prefix.isLetter() && prefix.isUpper())
cycleCount += (10 + prefix.toLatin1() - QChar('A').toLatin1()) * 10;
else if (prefix.isLetter() && prefix.isLower())
cycleCount += (10 + prefix.toLatin1() - QChar('a').toLatin1()) * 10 + 26*10;
else
cycleCount = 0; //Error
return cycleCount;
}
QString TestClass::unpackMinorPlanetProvisionalDesignation (QString packedDesignation, bool returnHTML)
{
QRegularExpression packedFormat("^([IJK])(\\d\\d)([A-Z])([\\dA-Za-z])(\\d)([A-Z])$");
QRegularExpressionMatch match;
if (packedDesignation.indexOf(packedFormat, 0, &match) != 0)
{
return QString();
}
//Year
QChar yearPrefix = match.captured(1).at(0);
int yearLastTwoDigits = match.captured(2).toInt();
int year = unpackYearNumber(yearPrefix, yearLastTwoDigits);
//Letters
QString halfMonthLetter = match.captured(3);
QString secondLetter = match.captured(6);
//Second letter cycle count
QChar cycleCountPrefix = match.captured(4).at(0);
int cycleCountLastDigit = match.captured(5).toInt();
int cycleCount = unpackAlphanumericNumber(cycleCountPrefix, cycleCountLastDigit);
//Assemble the unpacked provisional designation
QString result = QString("%1 %2%3").arg(year).arg(halfMonthLetter).arg(secondLetter);
if (cycleCount != 0)
{
if(returnHTML)
result.append(QString("<sub>%1</sub>").arg(cycleCount));
else
result.append(QString::number(cycleCount));
}
return result;
}
QString TestClass::unpackCometProvisionalDesignation(QString packedDesignation)
{
QRegularExpression packedFormat("^([IJK])(\\d\\d)([A-Z])([\\dA-Z])(\\d)([0a-z])$");
QRegularExpressionMatch match;
if (packedDesignation.indexOf(packedFormat, 0, &match) != 0)
{
return QString();
}
//Year
QChar yearPrefix = match.captured(1).at(0);
int yearLastTwoDigits = match.captured(2).toInt();
int year = unpackYearNumber(yearPrefix, yearLastTwoDigits);
//Half-month letter
QString halfMonthLetter = match.captured(3);
//Half-month number
QChar numberPrefix = match.captured(4).at(0);
int numberLastDigit = match.captured(5).toInt();
int halfMonthNumber = unpackAlphanumericNumber(numberPrefix, numberLastDigit);
//Fragment
QChar fragmentDesignation = match.captured(6).at(0);
QString result = QString("%1 %2%3").arg(year).arg(halfMonthLetter).arg(halfMonthNumber);
if (fragmentDesignation != '0')
result.append(QString("-%1").arg(fragmentDesignation.toUpper()));
//Only uppercase fragment suffixes are allowed/used?
//http://www.minorplanetcenter.org/iau/lists/CometResolution.html
return result;
}
void TestClass::testUnpackingAsteroids()
{
//Examples from http://www.minorplanetcenter.org/iau/info/PackedDes.html
QCOMPARE(unpackMinorPlanetProvisionalDesignation("J95X00A"), QString("1995 XA"));
QCOMPARE(unpackMinorPlanetProvisionalDesignation("J95X01L"), QString("1995 XL1"));
QCOMPARE(unpackMinorPlanetProvisionalDesignation("J95F13B"), QString("1995 FB13"));
QCOMPARE(unpackMinorPlanetProvisionalDesignation("J98SA8Q"), QString("1998 SQ108"));
QCOMPARE(unpackMinorPlanetProvisionalDesignation("J98SC7V"), QString("1998 SV127"));
QCOMPARE(unpackMinorPlanetProvisionalDesignation("J98SG2S"), QString("1998 SS162"));
QCOMPARE(unpackMinorPlanetProvisionalDesignation("K99AJ3Z"), QString("2099 AZ193"));
QCOMPARE(unpackMinorPlanetProvisionalDesignation("K08Aa0A"), QString("2008 AA360"));
QCOMPARE(unpackMinorPlanetProvisionalDesignation("K07Tf8A"), QString("2007 TA418"));
}
void TestClass::testUnpackingAsteroidsHTML()
{
QCOMPARE(unpackMinorPlanetProvisionalDesignation("J95X01L", true), QString("1995 XL<sub>1</sub>"));
QCOMPARE(unpackMinorPlanetProvisionalDesignation("J95F13B", true), QString("1995 FB<sub>13</sub>"));
QCOMPARE(unpackMinorPlanetProvisionalDesignation("J98SA8Q", true), QString("1998 SQ<sub>108</sub>"));
}
void TestClass::testUnpackingComets()
{
//Examples from http://www.minorplanetcenter.org/iau/info/PackedDes.html
QCOMPARE(unpackCometProvisionalDesignation("J95A010"), QString("1995 A1"));
QCOMPARE(unpackCometProvisionalDesignation("J94P01b"), QString("1994 P1-B"));
QCOMPARE(unpackCometProvisionalDesignation("J94P010"), QString("1994 P1"));
QCOMPARE(unpackCometProvisionalDesignation("K48X130"), QString("2048 X13"));
QCOMPARE(unpackCometProvisionalDesignation("K33L89c"), QString("2033 L89-C"));
QCOMPARE(unpackCometProvisionalDesignation("K88AA30"), QString("2088 A103"));
}
QTEST_MAIN(TestClass)
#include "unpackProvisionalDesignationTest.moc"
|
