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1 /*
2 ******************************************************************************
3 *                                                                            *
4 * Copyright (C) 2003-2013, International Business Machines                   *
5 *                Corporation and others. All Rights Reserved.                *
6 *                                                                            *
7 ******************************************************************************
8 *   file name:  ulocdata.h
9 *   encoding:   US-ASCII
10 *   tab size:   8 (not used)
11 *   indentation:4
12 *
13 *   created on: 2003Oct21
14 *   created by: Ram Viswanadha
15 */
16 
17 #ifndef __ULOCDATA_H__
18 #define __ULOCDATA_H__
19 
20 #include "unicode/ures.h"
21 #include "unicode/uloc.h"
22 #include "unicode/uset.h"
23 #include "unicode/localpointer.h"
24 
25 /**
26  * \file
27  * \brief C API: Provides access to locale data.
28  */
29 
30 /** Forward declaration of the ULocaleData structure. @stable ICU 3.6 */
31 struct ULocaleData;
32 
33 /** A locale data object. @stable ICU 3.6 */
34 typedef struct ULocaleData ULocaleData;
35 
36 
37 
38 /** The possible types of exemplar character sets.
39   * @stable ICU 3.4
40   */
41 typedef enum ULocaleDataExemplarSetType  {
42     /** Basic set @stable ICU 3.4 */
43     ULOCDATA_ES_STANDARD=0,
44     /** Auxiliary set @stable ICU 3.4 */
45     ULOCDATA_ES_AUXILIARY=1,
46     /** Index Character set @stable ICU 4.8 */
47     ULOCDATA_ES_INDEX=2,
48 #ifndef U_HIDE_DRAFT_API
49     /** Punctuation set @draft ICU 51 */
50     ULOCDATA_ES_PUNCTUATION=3,
51 #endif /* U_HIDE_DRAFT_API */
52     /** One higher than the last valid type @stable ICU 3.4 */
53     ULOCDATA_ES_COUNT=4
54 } ULocaleDataExemplarSetType;
55 
56 /** The possible types of delimiters.
57   * @stable ICU 3.4
58   */
59 typedef enum ULocaleDataDelimiterType {
60     /** Quotation start @stable ICU 3.4 */
61     ULOCDATA_QUOTATION_START = 0,
62     /** Quotation end @stable ICU 3.4 */
63     ULOCDATA_QUOTATION_END = 1,
64     /** Alternate quotation start @stable ICU 3.4 */
65     ULOCDATA_ALT_QUOTATION_START = 2,
66     /** Alternate quotation end @stable ICU 3.4 */
67     ULOCDATA_ALT_QUOTATION_END = 3,
68     /** One higher than the last valid type @stable ICU 3.4 */
69     ULOCDATA_DELIMITER_COUNT = 4
70 } ULocaleDataDelimiterType;
71 
72 /**
73  * Opens a locale data object for the given locale
74  *
75  * @param localeID  Specifies the locale associated with this locale
76  *                  data object.
77  * @param status    Pointer to error status code.
78  * @stable ICU 3.4
79  */
80 U_STABLE ULocaleData* U_EXPORT2
81 ulocdata_open(const char *localeID, UErrorCode *status);
82 
83 /**
84  * Closes a locale data object.
85  *
86  * @param uld       The locale data object to close
87  * @stable ICU 3.4
88  */
89 U_STABLE void U_EXPORT2
90 ulocdata_close(ULocaleData *uld);
91 
92 #if U_SHOW_CPLUSPLUS_API
93 
94 U_NAMESPACE_BEGIN
95 
96 /**
97  * \class LocalULocaleDataPointer
98  * "Smart pointer" class, closes a ULocaleData via ulocdata_close().
99  * For most methods see the LocalPointerBase base class.
100  *
101  * @see LocalPointerBase
102  * @see LocalPointer
103  * @stable ICU 4.4
104  */
105 U_DEFINE_LOCAL_OPEN_POINTER(LocalULocaleDataPointer, ULocaleData, ulocdata_close);
106 
107 U_NAMESPACE_END
108 
109 #endif
110 
111 /**
112  * Sets the "no Substitute" attribute of the locale data
113  * object.  If true, then any methods associated with the
114  * locale data object will return null when there is no
115  * data available for that method, given the locale ID
116  * supplied to ulocdata_open().
117  *
118  * @param uld       The locale data object to set.
119  * @param setting   Value of the "no substitute" attribute.
120  * @stable ICU 3.4
121  */
122 U_STABLE void U_EXPORT2
123 ulocdata_setNoSubstitute(ULocaleData *uld, UBool setting);
124 
125 /**
126  * Retrieves the current "no Substitute" value of the locale data
127  * object.  If true, then any methods associated with the
128  * locale data object will return null when there is no
129  * data available for that method, given the locale ID
130  * supplied to ulocdata_open().
131  *
132  * @param uld       Pointer to the The locale data object to set.
133  * @return UBool    Value of the "no substitute" attribute.
134  * @stable ICU 3.4
135  */
136 U_STABLE UBool U_EXPORT2
137 ulocdata_getNoSubstitute(ULocaleData *uld);
138 
139 /**
140  * Returns the set of exemplar characters for a locale.
141  *
142  * @param uld       Pointer to the locale data object from which the
143  *                  exemplar character set is to be retrieved.
144  * @param fillIn    Pointer to a USet object to receive the
145  *                  exemplar character set for the given locale.  Previous
146  *                  contents of fillIn are lost.  <em>If fillIn is NULL,
147  *                  then a new USet is created and returned.  The caller
148  *                  owns the result and must dispose of it by calling
149  *                  uset_close.</em>
150  * @param options   Bitmask for options to apply to the exemplar pattern.
151  *                  Specify zero to retrieve the exemplar set as it is
152  *                  defined in the locale data.  Specify
153  *                  USET_CASE_INSENSITIVE to retrieve a case-folded
154  *                  exemplar set.  See uset_applyPattern for a complete
155  *                  list of valid options.  The USET_IGNORE_SPACE bit is
156  *                  always set, regardless of the value of 'options'.
157  * @param extype    Specifies the type of exemplar set to be retrieved.
158  * @param status    Pointer to an input-output error code value;
159  *                  must not be NULL.  Will be set to U_MISSING_RESOURCE_ERROR
160  *                  if the requested data is not available.
161  * @return USet*    Either fillIn, or if fillIn is NULL, a pointer to
162  *                  a newly-allocated USet that the user must close.
163  *                  In case of error, NULL is returned.
164  * @stable ICU 3.4
165  */
166 U_STABLE USet* U_EXPORT2
167 ulocdata_getExemplarSet(ULocaleData *uld, USet *fillIn,
168                         uint32_t options, ULocaleDataExemplarSetType extype, UErrorCode *status);
169 
170 /**
171  * Returns one of the delimiter strings associated with a locale.
172  *
173  * @param uld           Pointer to the locale data object from which the
174  *                      delimiter string is to be retrieved.
175  * @param type          the type of delimiter to be retrieved.
176  * @param result        A pointer to a buffer to receive the result.
177  * @param resultLength  The maximum size of result.
178  * @param status        Pointer to an error code value
179  * @return int32_t      The total buffer size needed; if greater than resultLength,
180  *                      the output was truncated.
181  * @stable ICU 3.4
182  */
183 U_STABLE int32_t U_EXPORT2
184 ulocdata_getDelimiter(ULocaleData *uld, ULocaleDataDelimiterType type, UChar *result, int32_t resultLength, UErrorCode *status);
185 
186 /**
187  * Enumeration for representing the measurement systems.
188  * @stable ICU 2.8
189  */
190 typedef enum UMeasurementSystem {
191     UMS_SI,     /** Measurement system specified by SI otherwise known as Metric system. */
192     UMS_US,     /** Measurement system followed in the United States of America. */
193     UMS_LIMIT
194 } UMeasurementSystem;
195 
196 /**
197  * Returns the measurement system used in the locale specified by the localeID.
198  * Please note that this API will change in ICU 3.6 and will use an ulocdata object.
199  *
200  * @param localeID      The id of the locale for which the measurement system to be retrieved.
201  * @param status        Must be a valid pointer to an error code value,
202  *                      which must not indicate a failure before the function call.
203  * @return UMeasurementSystem the measurement system used in the locale.
204  * @stable ICU 2.8
205  */
206 U_STABLE UMeasurementSystem U_EXPORT2
207 ulocdata_getMeasurementSystem(const char *localeID, UErrorCode *status);
208 
209 /**
210  * Returns the element gives the normal business letter size, and customary units.
211  * The units for the numbers are always in <em>milli-meters</em>.
212  * For US since 8.5 and 11 do not yeild an integral value when converted to milli-meters,
213  * the values are rounded off.
214  * So for A4 size paper the height and width are 297 mm and 210 mm repectively,
215  * and for US letter size the height and width are 279 mm and 216 mm respectively.
216  * Please note that this API will change in ICU 3.6 and will use an ulocdata object.
217  *
218  * @param localeID      The id of the locale for which the paper size information to be retrieved.
219  * @param height        A pointer to int to recieve the height information.
220  * @param width         A pointer to int to recieve the width information.
221  * @param status        Must be a valid pointer to an error code value,
222  *                      which must not indicate a failure before the function call.
223  * @stable ICU 2.8
224  */
225 U_STABLE void U_EXPORT2
226 ulocdata_getPaperSize(const char *localeID, int32_t *height, int32_t *width, UErrorCode *status);
227 
228 /**
229  * Return the current CLDR version used by the library.
230  * @param versionArray fillin that will recieve the version number
231  * @param status error code - could be U_MISSING_RESOURCE_ERROR if the version was not found.
232  * @stable ICU 4.2
233  */
234 U_STABLE void U_EXPORT2
235 ulocdata_getCLDRVersion(UVersionInfo versionArray, UErrorCode *status);
236 
237 /**
238  * Returns locale display pattern associated with a locale.
239  *
240  * @param uld       Pointer to the locale data object from which the
241  *                  exemplar character set is to be retrieved.
242  * @param pattern   locale display pattern for locale.
243  * @param patternCapacity the size of the buffer to store the locale display
244  *                  pattern with.
245  * @param status    Must be a valid pointer to an error code value,
246  *                  which must not indicate a failure before the function call.
247  * @return the actual buffer size needed for localeDisplayPattern.  If it's greater
248  * than patternCapacity, the returned pattern will be truncated.
249  *
250  * @stable ICU 4.2
251  */
252 U_STABLE int32_t U_EXPORT2
253 ulocdata_getLocaleDisplayPattern(ULocaleData *uld,
254                                  UChar *pattern,
255                                  int32_t patternCapacity,
256                                  UErrorCode *status);
257 
258 
259 /**
260  * Returns locale separator associated with a locale.
261  *
262  * @param uld       Pointer to the locale data object from which the
263  *                  exemplar character set is to be retrieved.
264  * @param separator locale separator for locale.
265  * @param separatorCapacity the size of the buffer to store the locale
266  *                  separator with.
267  * @param status    Must be a valid pointer to an error code value,
268  *                  which must not indicate a failure before the function call.
269  * @return the actual buffer size needed for localeSeparator.  If it's greater
270  * than separatorCapacity, the returned separator will be truncated.
271  *
272  * @stable ICU 4.2
273  */
274 U_STABLE int32_t U_EXPORT2
275 ulocdata_getLocaleSeparator(ULocaleData *uld,
276                             UChar *separator,
277                             int32_t separatorCapacity,
278                             UErrorCode *status);
279 #endif
280