--- /dev/null
+/*
+*******************************************************************************
+* Copyright (C) 2010, International Business Machines Corporation and
+* others. All Rights Reserved.
+*******************************************************************************
+*
+*
+* File NUMSYS.CPP
+*
+* Modification History:*
+* Date Name Description
+*
+********************************************************************************
+*/
+
+#include "unicode/utypes.h"
+#include "unicode/localpointer.h"
+#include "unicode/uchar.h"
+#include "unicode/unistr.h"
+#include "unicode/ures.h"
+#include "unicode/ustring.h"
+#include "unicode/uloc.h"
+#include "unicode/schriter.h"
+#include "unicode/numsys.h"
+#include "cstring.h"
+#include "uresimp.h"
+
+#if !UCONFIG_NO_FORMATTING
+
+U_NAMESPACE_BEGIN
+
+// Useful constants
+
+#define DEFAULT_DIGITS UNICODE_STRING_SIMPLE("0123456789");
+static const char gNumberingSystems[] = "numberingSystems";
+static const char gNumberElements[] = "NumberElements";
+static const char gDefault[] = "default";
+static const char gDesc[] = "desc";
+static const char gRadix[] = "radix";
+static const char gAlgorithmic[] = "algorithmic";
+static const char gLatn[] = "latn";
+
+
+UOBJECT_DEFINE_RTTI_IMPLEMENTATION(NumberingSystem)
+
+ /**
+ * Default Constructor.
+ *
+ * @draft ICU 4.2
+ */
+
+NumberingSystem::NumberingSystem() {
+ radix = 10;
+ algorithmic = FALSE;
+ UnicodeString defaultDigits = DEFAULT_DIGITS;
+ desc.setTo(defaultDigits);
+ uprv_strcpy(name,gLatn);
+}
+
+ /**
+ * Copy constructor.
+ * @draft ICU 4.2
+ */
+
+NumberingSystem::NumberingSystem(const NumberingSystem& other)
+: UObject(other) {
+ *this=other;
+}
+
+NumberingSystem* U_EXPORT2
+NumberingSystem::createInstance(int32_t radix_in, UBool isAlgorithmic_in, const UnicodeString & desc_in, UErrorCode &status) {
+
+ if (U_FAILURE(status)) {
+ return NULL;
+ }
+
+ if ( radix_in < 2 ) {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ return NULL;
+ }
+
+ if ( !isAlgorithmic_in ) {
+ if ( desc_in.countChar32() != radix_in || !isValidDigitString(desc_in)) {
+ status = U_ILLEGAL_ARGUMENT_ERROR;
+ return NULL;
+ }
+ }
+
+ NumberingSystem *ns = new NumberingSystem();
+
+ ns->setRadix(radix_in);
+ ns->setDesc(desc_in);
+ ns->setAlgorithmic(isAlgorithmic_in);
+ ns->setName(NULL);
+ return ns;
+
+}
+
+
+NumberingSystem* U_EXPORT2
+NumberingSystem::createInstance(const Locale & inLocale, UErrorCode& status) {
+
+ if (U_FAILURE(status)) {
+ return NULL;
+ }
+
+ char buffer[ULOC_KEYWORDS_CAPACITY];
+ int32_t count = inLocale.getKeywordValue("numbers",buffer, sizeof(buffer),status);
+ if ( count > 0 ) { // @numbers keyword was specified in the locale
+ buffer[count] = '\0'; // Make sure it is null terminated.
+ return NumberingSystem::createInstanceByName(buffer,status);
+ } else { // Find the default numbering system for this locale.
+ UResourceBundle *resource = ures_open(NULL, inLocale.getName(), &status);
+ UResourceBundle *numberElementsRes = ures_getByKey(resource,gNumberElements,NULL,&status);
+ const UChar *defaultNSName =
+ ures_getStringByKeyWithFallback(numberElementsRes, gDefault, &count, &status);
+ ures_close(numberElementsRes);
+ ures_close(resource);
+
+ if (U_FAILURE(status)) {
+ status = U_USING_FALLBACK_WARNING;
+ NumberingSystem *ns = new NumberingSystem();
+ return ns;
+ }
+
+ if ( count > 0 && count < ULOC_KEYWORDS_CAPACITY ) { // Default numbering system found
+ u_UCharsToChars(defaultNSName,buffer,count);
+ buffer[count] = '\0'; // Make sure it is null terminated.
+ return NumberingSystem::createInstanceByName(buffer,status);
+ } else {
+ status = U_USING_FALLBACK_WARNING;
+ NumberingSystem *ns = new NumberingSystem();
+ return ns;
+ }
+
+ }
+}
+
+NumberingSystem* U_EXPORT2
+NumberingSystem::createInstance(UErrorCode& status) {
+ return NumberingSystem::createInstance(Locale::getDefault(), status);
+}
+
+NumberingSystem* U_EXPORT2
+NumberingSystem::createInstanceByName(const char *name, UErrorCode& status) {
+
+ UResourceBundle *numberingSystemsInfo = NULL;
+ UResourceBundle *nsTop, *nsCurrent;
+ const UChar* description = NULL;
+ int32_t radix = 10;
+ int32_t algorithmic = 0;
+ int32_t len;
+
+ numberingSystemsInfo = ures_openDirect(NULL,gNumberingSystems, &status);
+ nsCurrent = ures_getByKey(numberingSystemsInfo,gNumberingSystems,NULL,&status);
+ nsTop = ures_getByKey(nsCurrent,name,NULL,&status);
+ description = ures_getStringByKey(nsTop,gDesc,&len,&status);
+
+ ures_getByKey(nsTop,gRadix,nsCurrent,&status);
+ radix = ures_getInt(nsCurrent,&status);
+
+ ures_getByKey(nsTop,gAlgorithmic,nsCurrent,&status);
+ algorithmic = ures_getInt(nsCurrent,&status);
+
+ UBool isAlgorithmic = ( algorithmic == 1 );
+ UnicodeString nsd;
+ nsd.setTo(description);
+
+ ures_close(nsCurrent);
+ ures_close(nsTop);
+ ures_close(numberingSystemsInfo);
+
+ if (U_FAILURE(status)) {
+ status = U_UNSUPPORTED_ERROR;
+ return NULL;
+ }
+
+ NumberingSystem* ns = NumberingSystem::createInstance(radix,isAlgorithmic,nsd,status);
+ ns->setName(name);
+ return ns;
+}
+
+ /**
+ * Destructor.
+ * @draft ICU 4.2
+ */
+NumberingSystem::~NumberingSystem() {
+}
+
+int32_t NumberingSystem::getRadix() {
+ return radix;
+}
+
+UnicodeString NumberingSystem::getDescription() {
+ return desc;
+}
+
+const char * NumberingSystem::getName() {
+ return name;
+}
+
+void NumberingSystem::setRadix(int32_t r) {
+ radix = r;
+}
+
+void NumberingSystem::setAlgorithmic(UBool c) {
+ algorithmic = c;
+}
+
+void NumberingSystem::setDesc(UnicodeString d) {
+ desc.setTo(d);
+}
+void NumberingSystem::setName(const char *n) {
+ if ( n == NULL ) {
+ name[0] = (char) 0;
+ } else {
+ uprv_strncpy(name,n,NUMSYS_NAME_CAPACITY);
+ name[NUMSYS_NAME_CAPACITY] = (char)0; // Make sure it is null terminated.
+ }
+}
+UBool NumberingSystem::isAlgorithmic() const {
+ return ( algorithmic );
+}
+
+
+UBool NumberingSystem::isValidDigitString(const UnicodeString& str) {
+
+ StringCharacterIterator it(str);
+ UChar32 c;
+ UChar32 prev = 0;
+ int32_t i = 0;
+
+ for ( it.setToStart(); it.hasNext(); ) {
+ c = it.next32PostInc();
+ if ( c > 0xFFFF ) { // Digits outside the BMP are not currently supported
+ return FALSE;
+ }
+ i++;
+ prev = c;
+ }
+ return TRUE;
+}
+U_NAMESPACE_END
+
+#endif /* #if !UCONFIG_NO_FORMATTING */
+
+//eof
projects / apple / icu.git / blobdiff