/work/obj-fuzz/dist/include/unicode/fieldpos.h
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1 | | // © 2016 and later: Unicode, Inc. and others. |
2 | | // License & terms of use: http://www.unicode.org/copyright.html |
3 | | /* |
4 | | ******************************************************************************** |
5 | | * Copyright (C) 1997-2006, International Business Machines |
6 | | * Corporation and others. All Rights Reserved. |
7 | | ******************************************************************************** |
8 | | * |
9 | | * File FIELDPOS.H |
10 | | * |
11 | | * Modification History: |
12 | | * |
13 | | * Date Name Description |
14 | | * 02/25/97 aliu Converted from java. |
15 | | * 03/17/97 clhuang Updated per Format implementation. |
16 | | * 07/17/98 stephen Added default/copy ctors, and operators =, ==, != |
17 | | ******************************************************************************** |
18 | | */ |
19 | | |
20 | | // ***************************************************************************** |
21 | | // This file was generated from the java source file FieldPosition.java |
22 | | // ***************************************************************************** |
23 | | |
24 | | #ifndef FIELDPOS_H |
25 | | #define FIELDPOS_H |
26 | | |
27 | | #include "unicode/utypes.h" |
28 | | |
29 | | /** |
30 | | * \file |
31 | | * \brief C++ API: FieldPosition identifies the fields in a formatted output. |
32 | | */ |
33 | | |
34 | | #if !UCONFIG_NO_FORMATTING |
35 | | |
36 | | #include "unicode/uobject.h" |
37 | | |
38 | | U_NAMESPACE_BEGIN |
39 | | |
40 | | /** |
41 | | * <code>FieldPosition</code> is a simple class used by <code>Format</code> |
42 | | * and its subclasses to identify fields in formatted output. Fields are |
43 | | * identified by constants, whose names typically end with <code>_FIELD</code>, |
44 | | * defined in the various subclasses of <code>Format</code>. See |
45 | | * <code>ERA_FIELD</code> and its friends in <code>DateFormat</code> for |
46 | | * an example. |
47 | | * |
48 | | * <p> |
49 | | * <code>FieldPosition</code> keeps track of the position of the |
50 | | * field within the formatted output with two indices: the index |
51 | | * of the first character of the field and the index of the last |
52 | | * character of the field. |
53 | | * |
54 | | * <p> |
55 | | * One version of the <code>format</code> method in the various |
56 | | * <code>Format</code> classes requires a <code>FieldPosition</code> |
57 | | * object as an argument. You use this <code>format</code> method |
58 | | * to perform partial formatting or to get information about the |
59 | | * formatted output (such as the position of a field). |
60 | | * |
61 | | * The FieldPosition class is not intended for public subclassing. |
62 | | * |
63 | | * <p> |
64 | | * Below is an example of using <code>FieldPosition</code> to aid |
65 | | * alignment of an array of formatted floating-point numbers on |
66 | | * their decimal points: |
67 | | * <pre> |
68 | | * \code |
69 | | * double doubleNum[] = {123456789.0, -12345678.9, 1234567.89, -123456.789, |
70 | | * 12345.6789, -1234.56789, 123.456789, -12.3456789, 1.23456789}; |
71 | | * int dNumSize = (int)(sizeof(doubleNum)/sizeof(double)); |
72 | | * |
73 | | * UErrorCode status = U_ZERO_ERROR; |
74 | | * DecimalFormat* fmt = (DecimalFormat*) NumberFormat::createInstance(status); |
75 | | * fmt->setDecimalSeparatorAlwaysShown(true); |
76 | | * |
77 | | * const int tempLen = 20; |
78 | | * char temp[tempLen]; |
79 | | * |
80 | | * for (int i=0; i<dNumSize; i++) { |
81 | | * FieldPosition pos(NumberFormat::INTEGER_FIELD); |
82 | | * UnicodeString buf; |
83 | | * char fmtText[tempLen]; |
84 | | * ToCharString(fmt->format(doubleNum[i], buf, pos), fmtText); |
85 | | * for (int j=0; j<tempLen; j++) temp[j] = ' '; // clear with spaces |
86 | | * temp[__min(tempLen, tempLen-pos.getEndIndex())] = '\0'; |
87 | | * cout << temp << fmtText << endl; |
88 | | * } |
89 | | * delete fmt; |
90 | | * \endcode |
91 | | * </pre> |
92 | | * <p> |
93 | | * The code will generate the following output: |
94 | | * <pre> |
95 | | * \code |
96 | | * 123,456,789.000 |
97 | | * -12,345,678.900 |
98 | | * 1,234,567.880 |
99 | | * -123,456.789 |
100 | | * 12,345.678 |
101 | | * -1,234.567 |
102 | | * 123.456 |
103 | | * -12.345 |
104 | | * 1.234 |
105 | | * \endcode |
106 | | * </pre> |
107 | | */ |
108 | | class U_I18N_API FieldPosition : public UObject { |
109 | | public: |
110 | | /** |
111 | | * DONT_CARE may be specified as the field to indicate that the |
112 | | * caller doesn't need to specify a field. |
113 | | * @stable ICU 2.0 |
114 | | */ |
115 | | enum { DONT_CARE = -1 }; |
116 | | |
117 | | /** |
118 | | * Creates a FieldPosition object with a non-specified field. |
119 | | * @stable ICU 2.0 |
120 | | */ |
121 | | FieldPosition() |
122 | 0 | : UObject(), fField(DONT_CARE), fBeginIndex(0), fEndIndex(0) {} |
123 | | |
124 | | /** |
125 | | * Creates a FieldPosition object for the given field. Fields are |
126 | | * identified by constants, whose names typically end with _FIELD, |
127 | | * in the various subclasses of Format. |
128 | | * |
129 | | * @see NumberFormat#INTEGER_FIELD |
130 | | * @see NumberFormat#FRACTION_FIELD |
131 | | * @see DateFormat#YEAR_FIELD |
132 | | * @see DateFormat#MONTH_FIELD |
133 | | * @stable ICU 2.0 |
134 | | */ |
135 | | FieldPosition(int32_t field) |
136 | 0 | : UObject(), fField(field), fBeginIndex(0), fEndIndex(0) {} |
137 | | |
138 | | /** |
139 | | * Copy constructor |
140 | | * @param copy the object to be copied from. |
141 | | * @stable ICU 2.0 |
142 | | */ |
143 | | FieldPosition(const FieldPosition& copy) |
144 | 0 | : UObject(copy), fField(copy.fField), fBeginIndex(copy.fBeginIndex), fEndIndex(copy.fEndIndex) {} |
145 | | |
146 | | /** |
147 | | * Destructor |
148 | | * @stable ICU 2.0 |
149 | | */ |
150 | | virtual ~FieldPosition(); |
151 | | |
152 | | /** |
153 | | * Assignment operator |
154 | | * @param copy the object to be copied from. |
155 | | * @stable ICU 2.0 |
156 | | */ |
157 | | FieldPosition& operator=(const FieldPosition& copy); |
158 | | |
159 | | /** |
160 | | * Equality operator. |
161 | | * @param that the object to be compared with. |
162 | | * @return TRUE if the two field positions are equal, FALSE otherwise. |
163 | | * @stable ICU 2.0 |
164 | | */ |
165 | | UBool operator==(const FieldPosition& that) const; |
166 | | |
167 | | /** |
168 | | * Equality operator. |
169 | | * @param that the object to be compared with. |
170 | | * @return TRUE if the two field positions are not equal, FALSE otherwise. |
171 | | * @stable ICU 2.0 |
172 | | */ |
173 | | UBool operator!=(const FieldPosition& that) const; |
174 | | |
175 | | /** |
176 | | * Clone this object. |
177 | | * Clones can be used concurrently in multiple threads. |
178 | | * If an error occurs, then NULL is returned. |
179 | | * The caller must delete the clone. |
180 | | * |
181 | | * @return a clone of this object |
182 | | * |
183 | | * @see getDynamicClassID |
184 | | * @stable ICU 2.8 |
185 | | */ |
186 | | FieldPosition *clone() const; |
187 | | |
188 | | /** |
189 | | * Retrieve the field identifier. |
190 | | * @return the field identifier. |
191 | | * @stable ICU 2.0 |
192 | | */ |
193 | | int32_t getField(void) const { return fField; } |
194 | | |
195 | | /** |
196 | | * Retrieve the index of the first character in the requested field. |
197 | | * @return the index of the first character in the requested field. |
198 | | * @stable ICU 2.0 |
199 | | */ |
200 | 0 | int32_t getBeginIndex(void) const { return fBeginIndex; } |
201 | | |
202 | | /** |
203 | | * Retrieve the index of the character following the last character in the |
204 | | * requested field. |
205 | | * @return the index of the character following the last character in the |
206 | | * requested field. |
207 | | * @stable ICU 2.0 |
208 | | */ |
209 | 0 | int32_t getEndIndex(void) const { return fEndIndex; } |
210 | | |
211 | | /** |
212 | | * Set the field. |
213 | | * @param f the new value of the field. |
214 | | * @stable ICU 2.0 |
215 | | */ |
216 | 0 | void setField(int32_t f) { fField = f; } |
217 | | |
218 | | /** |
219 | | * Set the begin index. For use by subclasses of Format. |
220 | | * @param bi the new value of the begin index |
221 | | * @stable ICU 2.0 |
222 | | */ |
223 | | void setBeginIndex(int32_t bi) { fBeginIndex = bi; } |
224 | | |
225 | | /** |
226 | | * Set the end index. For use by subclasses of Format. |
227 | | * @param ei the new value of the end index |
228 | | * @stable ICU 2.0 |
229 | | */ |
230 | | void setEndIndex(int32_t ei) { fEndIndex = ei; } |
231 | | |
232 | | /** |
233 | | * ICU "poor man's RTTI", returns a UClassID for the actual class. |
234 | | * |
235 | | * @stable ICU 2.2 |
236 | | */ |
237 | | virtual UClassID getDynamicClassID() const; |
238 | | |
239 | | /** |
240 | | * ICU "poor man's RTTI", returns a UClassID for this class. |
241 | | * |
242 | | * @stable ICU 2.2 |
243 | | */ |
244 | | static UClassID U_EXPORT2 getStaticClassID(); |
245 | | |
246 | | private: |
247 | | /** |
248 | | * Input: Desired field to determine start and end offsets for. |
249 | | * The meaning depends on the subclass of Format. |
250 | | */ |
251 | | int32_t fField; |
252 | | |
253 | | /** |
254 | | * Output: Start offset of field in text. |
255 | | * If the field does not occur in the text, 0 is returned. |
256 | | */ |
257 | | int32_t fBeginIndex; |
258 | | |
259 | | /** |
260 | | * Output: End offset of field in text. |
261 | | * If the field does not occur in the text, 0 is returned. |
262 | | */ |
263 | | int32_t fEndIndex; |
264 | | }; |
265 | | |
266 | | inline FieldPosition& |
267 | | FieldPosition::operator=(const FieldPosition& copy) |
268 | 0 | { |
269 | 0 | fField = copy.fField; |
270 | 0 | fEndIndex = copy.fEndIndex; |
271 | 0 | fBeginIndex = copy.fBeginIndex; |
272 | 0 | return *this; |
273 | 0 | } |
274 | | |
275 | | inline UBool |
276 | | FieldPosition::operator==(const FieldPosition& copy) const |
277 | 0 | { |
278 | 0 | return (fField == copy.fField && |
279 | 0 | fEndIndex == copy.fEndIndex && |
280 | 0 | fBeginIndex == copy.fBeginIndex); |
281 | 0 | } |
282 | | |
283 | | inline UBool |
284 | | FieldPosition::operator!=(const FieldPosition& copy) const |
285 | 0 | { |
286 | 0 | return !operator==(copy); |
287 | 0 | } |
288 | | |
289 | | U_NAMESPACE_END |
290 | | |
291 | | #endif /* #if !UCONFIG_NO_FORMATTING */ |
292 | | |
293 | | #endif // _FIELDPOS |
294 | | //eof |