| /* |
| ********************************************************************** |
| * Copyright (C) 1997-1999, International Business Machines |
| * Corporation and others. All Rights Reserved. |
| ********************************************************************** |
| * |
| * File URES.H (formerly CRESBUND.H) |
| * |
| * Modification History: |
| * |
| * Date Name Description |
| * 04/01/97 aliu Creation. |
| * 02/22/99 damiba overhaul. |
| * 04/04/99 helena Fixed internal header inclusion. |
| * 04/15/99 Madhu Updated Javadoc |
| * 06/14/99 stephen Removed functions taking a filename suffix. |
| * 07/20/99 stephen Language-independent ypedef to void* |
| * 11/09/99 weiv Added ures_getLocale() |
| ******************************************************************************* |
| */ |
| |
| #ifndef URES_H |
| #define URES_H |
| |
| #include "unicode/utypes.h" |
| |
| |
| #include "unicode/uloc.h" |
| |
| /** |
| * @name ResourceBundle C API |
| * |
| * C API representing a collection of resource information pertaining to a given |
| * locale. A resource bundle provides a way of accessing locale- specific information in |
| * a data file. You create a resource bundle that manages the resources for a given |
| * locale and then ask it for individual resources. |
| * <P> |
| * The resource bundle file is a text (ASCII or Unicode) file with the format: |
| * <pre> |
| * . locale { |
| * . tag1 {...} |
| * . tag2 {...} |
| * . } |
| * </pre> |
| * The tags are used to retrieve the data later. You may not have multiple instances of |
| * the same tag. |
| * <P> |
| * Four data types are supported. These are solitary strings, comma-delimited lists of |
| * strings, 2-dimensional arrays of strings, and tagged lists of strings. |
| * <P> |
| * Note that all data is textual. Adjacent strings are merged by the low-level |
| * tokenizer, so that the following effects occur: foo bar, baz // 2 elements, "foo |
| * bar", and "baz" "foo" "bar", baz // 2 elements, "foobar", and "baz" Note that a |
| * single intervening space is added between merged strings, unless they are both double |
| * quoted. This extends to more than two strings in a row. |
| * <P> |
| * Whitespace is ignored, as in a C source file. |
| * <P> |
| * Solitary strings have the format: |
| * <pre> |
| * . Tag { Data } |
| * </pre> |
| * This is indistinguishable from a comma-delimited list with only one element, and in |
| * fact may be retrieved as such (as an array, or as element 0 or an array). |
| * <P> |
| * Comma-delimited lists have the format: |
| * <pre> |
| * . Tag { Data, Data, Data } |
| * </pre> |
| * Parsing is lenient; a final string, after the last element, is allowed. |
| * <P> |
| * Tagged lists have the format: |
| * <pre> |
| * . Tag { Subtag { Data } Subtag {Data} } |
| * </pre> |
| * Data is retrieved by specifying the subtag. |
| * <P> |
| * Two-dimensional arrays have the format: |
| * <pre> |
| * . TwoD { |
| * . { r1c1, r1c2, ..., r1cm }, |
| * . { r2c1, r2c2, ..., r2cm }, |
| * . ... |
| * . { rnc1, rnc2, ..., rncm } |
| * . } |
| * </pre> |
| * where n is the number of rows, and m is the number of columns. Parsing is lenient (as |
| * in other data types). A final comma is always allowed after the last element; either |
| * the last string in a row, or the last row itself. Furthermore, since there is no |
| * ambiguity, the commas between the rows are entirely optional. (However, if a comma is |
| * present, there can only be one comma, no more.) It is possible to have zero columns, |
| * as follows: |
| * <pre> |
| * . Odd { {} {} {} } // 3 x 0 array |
| * </pre> |
| * But it is impossible to have zero rows. The smallest array is thus a 1 x 0 array, |
| * which looks like this: |
| * <pre> |
| * . Smallest { {} } // 1 x 0 array |
| * </pre> |
| * The array must be strictly rectangular; that is, each row must have the same number |
| * of elements. |
| * <P> |
| * This is an example for using a possible custom resource: |
| * <pre> |
| * . const char *currentLocale; |
| * . UErrorCode success = U_ZERO_ERROR; |
| * . UResourceBundle* myResources=ures_open("MyResources", currentLocale, &success ); |
| * . |
| * . UChar *button1Title, *button2Title; |
| * . button1Title= ures_get(myResources, "OkKey", &success ); |
| * . button2Title= ures_get(myResources, "CancelKey", &success ); |
| * </pre> |
| */ |
| |
| /** A UResourceBundle. |
| * For usage in C programs. |
| */ |
| typedef void* UResourceBundle; |
| |
| |
| /** |
| * Functions to create and destroy resource bundles. |
| */ |
| |
| /** |
| *Opens a UResourceBundle, from which users can extract strings by using |
| *their corresponding keys. |
| *Note that the caller is responsible of calling <TT>ures_close</TT> on each succesfully |
| *opened resource bundle. |
| *@param path : string containing the full path pointing to the directory |
| * where the resources reside (should end with a directory |
| * separator. |
| * e.g. "/usr/resource/my_app/resources/" on a Unix system |
| * if NULL will use the system's current data directory |
| *@param locale: specifies the locale for which we want to open the resource |
| * if NULL will use the default locale |
| * |
| *@param status : fills in the outgoing error code. |
| * The UErrorCode err parameter is used to return status information to the user. To |
| * check whether the construction succeeded or not, you should check the value of |
| * U_SUCCESS(err). If you wish more detailed information, you can check for |
| * informational error results which still indicate success. U_USING_FALLBACK_ERROR |
| * indicates that a fall back locale was used. For example, 'de_CH' was requested, |
| * but nothing was found there, so 'de' was used. U_USING_DEFAULT_ERROR indicates that |
| * the default locale data was used; neither the requested locale nor any of its |
| * fall back locales could be found. |
| *@return : a newly allocated resource bundle. |
| *@see ures_close |
| */ |
| U_CAPI UResourceBundle* U_EXPORT2 ures_open(const char* path, /* NULL if none */ |
| const char* locale, /* NULL if none */ |
| UErrorCode* status); |
| |
| |
| /** |
| *Opens a UResourceBundle, from which users can extract strings by using |
| *their corresponding keys. This version of open requires the path |
| *string to be of type <TT>const wchar_t*</TT>. |
| *Note that the caller is responsible of calling <TT>ures_close</TT> on each succesfully |
| *opened resource bundle. |
| *@param path: string containing the full path pointing to the directory |
| * where the resources reside (should end with a directory |
| * separator. |
| * e.g. "/usr/resource/my_app/resources/" on a Unix system |
| * if NULL will use the system's current data directory |
| *@param locale: specifies the locale for which we want to open the resource |
| * if NULL will use the default locale |
| * |
| *@param status: fills in the outgoing error code. |
| *@see ures_close |
| *@return : a newly allocated resource bundle. |
| */ |
| U_CAPI UResourceBundle* U_EXPORT2 ures_openW(const wchar_t* path, |
| const char* locale, |
| UErrorCode* status); |
| |
| /** |
| * returns a resource string, given a resource bundle and a key. |
| * |
| * @param resourceBundle: resourceBundle containing the desired string |
| * @param resourceTag: key tagging the desired string |
| * @param status: fills in the outgoing error code |
| * could be <TT>U_MISSING_RESOURCE_ERROR</T> if the key is not found |
| * could be a non-failing error |
| * e.g.: <TT>U_USING_FALLBACK_ERROR</TT>,<TT>U_USING_DEFAULT_ERROR </TT> |
| * @return: a library-owned zero-terminated unicode string (its lifetime |
| * is that of the resource bundle.) |
| * @see ures_getArrayItem |
| * @see ures_get2dArrayItem |
| * @see ures_getTaggedItem |
| */ |
| U_CAPI const UChar* U_EXPORT2 ures_get(const UResourceBundle* resourceBundle, |
| const char* resourceTag, |
| UErrorCode* status); |
| |
| /** |
| * Returns a resource string which is part of an array, given a resource bundle |
| * a key to the array and the index of the desired string. |
| * |
| * @param resourceBundle: resourceBundle containing the desired string |
| * @param resourceTag: key tagging the desired array |
| * @param resourceIndex: index of the desired string |
| * @param status: fills in the outgoing error code |
| * could be <TT>U_MISSING_RESOURCE_ERROR</T> if the key is not found |
| * could be a non-failing error |
| * e.g.: <TT>U_USING_FALLBACK_ERROR</TT>,<TT>U_USING_DEFAULT_ERROR </TT> |
| * @return: a library-owned zero-terminated unicode string (its lifetime |
| * is that of the resource bundle.) |
| * @see ures_get |
| * @see ures_get2dArrayItem |
| * @see ures_getTaggedItem |
| */ |
| U_CAPI const UChar* U_EXPORT2 ures_getArrayItem(const UResourceBundle* resourceBundle, |
| const char* resourceTag, |
| int32_t resourceIndex, |
| UErrorCode* status); |
| |
| /** |
| * Returns a resource string which is part of a 2D array, given a resource bundle |
| * a key to the array and the index pair of the desired string. |
| * |
| * @param resourceBundle: resourceBundle containing the desired string |
| * @param resourceTag: key tagging the desired array |
| * @param resourceIndex: x index of the desired string |
| * @param resourceIndex: y index of the desired string |
| * @param status: fills in the outgoing error code |
| * could be <TT>U_MISSING_RESOURCE_ERROR</T> if the key is not found |
| * could be a non-failing error |
| * e.g.: <TT>U_USING_FALLBACK_ERROR</TT>,<TT>U_USING_DEFAULT_ERROR </TT> |
| * @return: a library-owned zero-terminated unicode string (its lifetime |
| * is that of the resource bundle.) |
| * @see ures_get |
| * @see ures_getArrayItem |
| * @see ures_getTaggedItem |
| */ |
| |
| U_CAPI const UChar* U_EXPORT2 ures_get2dArrayItem(const UResourceBundle* resourceBundle, |
| const char* resourceTag, |
| int32_t rowIndex, |
| int32_t columnIndex, |
| UErrorCode* status); |
| |
| /** |
| * Returns a resource string which is part of a tagged array, given a resource bundle |
| * a key to the array and the key of the desired string. |
| * |
| * @param resourceBundle: resource bundle containing the desired string |
| * @param resourceTag: key tagging the desired array |
| * @param resourceIndex: key tagging the desired string |
| * @param status: fills in the outgoing error code |
| * could be <TT>U_MISSING_RESOURCE_ERROR</T> if the key is not found |
| * could be a non-failing error |
| * e.g.: <TT>U_USING_FALLBACK_ERROR</TT>,<TT>U_USING_DEFAULT_ERROR </TT> |
| * @return: a library-owned zero-terminated unicode string (its lifetime |
| * is that of the resource bundle.) |
| * @see ures_get |
| * @see ures_getArrayItem |
| * @see ures_get2dItem |
| */ |
| |
| U_CAPI const UChar* U_EXPORT2 ures_getTaggedArrayItem(const UResourceBundle* resourceBundle, |
| const char* resourceTag, |
| const char* itemTag, |
| UErrorCode* status); |
| |
| |
| |
| /** |
| * Returns the number of strings/arrays in resource bundles. |
| * |
| *@param resourceBundle: resource bundle containing the desired strings |
| *@param resourceKey: key tagging the resource |
| *@param err: fills in the outgoing error code |
| * could be <TT>U_MISSING_RESOURCE_ERROR</T> if the key is not found |
| * could be a non-failing error |
| * e.g.: <TT>U_USING_FALLBACK_ERROR</TT>,<TT>U_USING_DEFAULT_ERROR </TT> |
| *@return: for <STRONG>Arrays</STRONG>: returns the number of strings in the array |
| * <STRONG>2d Arrays</STRONG>: returns the number of 1d arrays |
| * <STRONG>taggedArrays</STRONG>: returns the number of strings in the array |
| * <STRONG>single string</STRONG>: returns 1 |
| *@see ures_get |
| *@see ures_getArrayItem |
| *@see ures_getTaggedArrayItem |
| *@see ures_get2dArrayItem |
| */ |
| |
| U_CAPI int32_t U_EXPORT2 ures_countArrayItems(const UResourceBundle* resourceBundle, |
| const char* resourceKey, |
| UErrorCode* err); |
| /** |
| * close a resource bundle, all pointers returned from the various ures_getXXX calls |
| * on this particular bundle are INVALID henceforth. |
| * |
| * @param resourceBundle: a succesfully opened resourceBundle. |
| * @param status: fills in the outgoing error code |
| * could be <TT>U_MISSING_RESOURCE_ERROR</T> if the key is not found |
| * could be a non-failing error |
| * e.g.: <TT>U_USING_FALLBACK_ERROR</TT>,<TT>U_USING_DEFAULT_ERROR </TT> |
| * @see ures_open |
| * @see ures_openW |
| */ |
| U_CAPI void U_EXPORT2 ures_close(UResourceBundle* resourceBundle); |
| /** |
| * Return the version number associated with this ResourceBundle. This version |
| * number is a string of the form MAJOR.MINOR, where MAJOR is the version number of |
| * the current analytic code package, and MINOR is the version number contained in |
| * the resource file as the value of the tag "Version". A change in the MINOR |
| * version indicated an updated data file. A change in the MAJOR version indicates a |
| * new version of the code which is not binary-compatible with the previous version. |
| * If no "Version" tag is present in a resource file, the MINOR version "0" is assigned. |
| * For example, if the Collation sort key algorithm changes, the MAJOR version |
| * increments. If the collation data in a resource file changes, the MINOR version |
| * for that file increments. |
| * @param resourceBundle: resource bundle in question |
| * @return A string of the form N.n, where N is the major version number, |
| * representing the code version, and n is the minor version number, |
| * representing the resource data file. The caller does not own this |
| * string. |
| */ |
| U_CAPI const char* U_EXPORT2 ures_getVersionNumber(const UResourceBundle* resourceBundle); |
| |
| /** |
| * Return the name of the Locale associated with this ResourceBundle. |
| * @param resourceBundle: resource bundle in question |
| * @param status: just for catching illegal arguments |
| * @return A Locale name |
| */ |
| U_CAPI const char* ures_getLocale(const UResourceBundle* resourceBundle, UErrorCode* status); |
| #endif /*_URES*/ |
| /*eof*/ |
