332 lines
14 KiB
C
332 lines
14 KiB
C
/*
|
|
**********************************************************************
|
|
* 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 "utypes.h"
|
|
|
|
|
|
#include "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*/
|