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/* CFRelativeDateTimeFormatter.c
Copyright (c) 2018-2019, Apple Inc. and the Swift project authors
Portions Copyright (c) 2014-2019, Apple Inc. and the Swift project authors
Licensed under Apache License v2.0 with Runtime Library Exception
See http://swift.org/LICENSE.txt for license information
See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
Responsibility: I-Ting Liu
*/
#include "CFRelativeDateTimeFormatter.h"
#include <assert.h>
#include "CFICULogging.h"
#include "CFInternal.h"
#include "CFRuntime_Internal.h"
struct __CFRelativeDateTimeFormatter {
CFRuntimeBase _base;
CFRelativeDateTimeFormatterStyle _style;
CFRelativeDateTimeFormatterUnitsStyle _unitsStyle;
CFLocaleRef _locale;
CFRelativeDateTimeFormattingContext _formattingContext;
};
static UDateRelativeDateTimeFormatterStyle icuRelativeDateTimeStyleFromUnitsStyle(CFRelativeDateTimeFormatterUnitsStyle style) {
switch (style) {
case CFRelativeDateTimeFormatterUnitsStyleSpellOut:
case CFRelativeDateTimeFormatterUnitsStyleFull:
return UDAT_STYLE_LONG;
case CFRelativeDateTimeFormatterUnitsStyleShort:
return UDAT_STYLE_SHORT;
case CFRelativeDateTimeFormatterUnitsStyleAbbreviated:
return UDAT_STYLE_NARROW;
default:
HALT_MSG("Invalid CFRelativeDateTimeFormatterStyle");
}
}
static URelativeDateTimeUnit icuRelativeDateTimeUnitFromCFUnit(CFCalendarUnit unit) {
switch (unit) {
case kCFCalendarUnitYear:
return UDAT_REL_UNIT_YEAR;
case kCFCalendarUnitMonth:
return UDAT_REL_UNIT_MONTH;
case kCFCalendarUnitWeekOfMonth:
return UDAT_REL_UNIT_WEEK;
case kCFCalendarUnitDay:
return UDAT_REL_UNIT_DAY;
case kCFCalendarUnitHour:
return UDAT_REL_UNIT_HOUR;
case kCFCalendarUnitMinute:
return UDAT_REL_UNIT_MINUTE;
case kCFCalendarUnitSecond:
return UDAT_REL_UNIT_SECOND;
default:
HALT_MSG("Invalid CFCalendarUnit");
}
}
static UDisplayContext icuFormattingContextFromCFContext(CFRelativeDateTimeFormattingContext context) {
switch (context) {
case CFRelativeDateTimeFormattingContextUnknown:
case CFRelativeDateTimeFormattingContextDynamic:
return UDISPCTX_CAPITALIZATION_NONE;
case CFRelativeDateTimeFormattingContextStandalone:
return UDISPCTX_CAPITALIZATION_FOR_STANDALONE;
case CFRelativeDateTimeFormattingContextListItem:
return UDISPCTX_CAPITALIZATION_FOR_UI_LIST_OR_MENU;
case CFRelativeDateTimeFormattingContextBeginningOfSentence:
return UDISPCTX_CAPITALIZATION_FOR_BEGINNING_OF_SENTENCE;
case CFRelativeDateTimeFormattingContextMiddleOfSentence:
return UDISPCTX_CAPITALIZATION_FOR_MIDDLE_OF_SENTENCE;
default:
HALT_MSG("Invalid CFRelativeDateTimeFormattingContext");
}
}
static void __CFRelativeDateTimeFormatterDeallocate(CFTypeRef cf) {
assert(cf != NULL);
CFRelativeDateTimeFormatterRef formatter = (CFRelativeDateTimeFormatterRef)cf;
if (formatter->_locale) { CFRelease(formatter->_locale); }
}
static CFStringRef __CFRelativeDateTimeFormatterCopyDescription(CFTypeRef cf) {
assert(cf != NULL);
CFRelativeDateTimeFormatterRef formatter = (CFRelativeDateTimeFormatterRef)cf;
return CFStringCreateWithFormat(CFGetAllocator(formatter), NULL, CFSTR("<CFRelativeDateTimeFormatter %p>[%p]"), formatter, CFGetAllocator(formatter));
}
const CFRuntimeClass __CFRelativeDateTimeFormatterClass = {
0,
"CFRelativeDateTimeFormatter",
NULL, // init
NULL, // copy
__CFRelativeDateTimeFormatterDeallocate,
NULL, // equal
NULL, // hash
NULL, // copy formatting desc
__CFRelativeDateTimeFormatterCopyDescription
};
CFTypeID _CFRelativeDateTimeFormatterGetTypeID(void) {
return _kCFRuntimeIDCFRelativeDateTimeFormatter;
}
CFRelativeDateTimeFormatterRef _CFRelativeDateTimeFormatterCreate(CFAllocatorRef allocator, CFLocaleRef locale, CFRelativeDateTimeFormatterUnitsStyle unitsStyle, CFRelativeDateTimeFormatterStyle style, CFRelativeDateTimeFormattingContext formattingContext) {
if (allocator == NULL) { allocator = __CFGetDefaultAllocator(); }
__CFGenericValidateType(allocator, CFAllocatorGetTypeID());
CFAssert1(locale != NULL, __kCFLogAssertion, "%s(): locale cannot be NULL", __PRETTY_FUNCTION__);
__CFGenericValidateType(locale, CFLocaleGetTypeID());
size_t size = sizeof(struct __CFRelativeDateTimeFormatter) - sizeof(CFRuntimeBase);
struct __CFRelativeDateTimeFormatter *formatter;
formatter = (struct __CFRelativeDateTimeFormatter*)_CFRuntimeCreateInstance(allocator, _CFRelativeDateTimeFormatterGetTypeID(), size, NULL);
if (formatter == NULL) { return NULL; }
formatter->_locale = CFRetain(locale);
formatter->_formattingContext = formattingContext;
formatter->_unitsStyle = unitsStyle;
formatter->_style = style;
return formatter;
}
CFStringRef _CFRelativeDateTimeFormatterCreateStringWithCalendarUnit(CFAllocatorRef allocator, CFRelativeDateTimeFormatterRef formatter, CFCalendarUnit unit, double offset) {
CFLocaleRef locale = formatter->_locale;
CFStringRef localeIdentifier = CFLocaleGetIdentifier(locale);
char buffer[ULOC_FULLNAME_CAPACITY];
const char *cLocaleIdentifier = CFStringGetCStringPtr(localeIdentifier, kCFStringEncodingASCII);
if (NULL == cLocaleIdentifier) {
if (CFStringGetCString(localeIdentifier, buffer, ULOC_FULLNAME_CAPACITY, kCFStringEncodingASCII)) {
cLocaleIdentifier = buffer;
}
}
UNumberFormat *numFmt = NULL;
CFRelativeDateTimeFormatterUnitsStyle unitsStyle = formatter->_unitsStyle;
if (unitsStyle == CFRelativeDateTimeFormatterUnitsStyleSpellOut) {
UErrorCode status = U_ZERO_ERROR;
numFmt = __cficu_unum_open(UNUM_SPELLOUT, NULL, 0, cLocaleIdentifier, NULL, &status);
if (U_FAILURE(status)) {
if (numFmt) {
__cficu_unum_close(numFmt);
}
return NULL;
}
}
UDateRelativeDateTimeFormatterStyle style = icuRelativeDateTimeStyleFromUnitsStyle(unitsStyle);
UErrorCode status = U_ZERO_ERROR;
UDisplayContext context = icuFormattingContextFromCFContext(formatter->_formattingContext);
// This takes over the ownership of numFmt, so there's not need to close numFmt.
URelativeDateTimeFormatter *fmt = __cficu_ureldatefmt_open(cLocaleIdentifier, numFmt, style, context, &status);
if (U_FAILURE(status)) {
if (fmt) {
__cficu_ureldatefmt_close(fmt);
}
return NULL;
}
URelativeDateTimeUnit icuUnit = icuRelativeDateTimeUnitFromCFUnit(unit);
int32_t len = 0;
const int32_t RESULT_BUFFER_SIZE = 128;
UChar result[RESULT_BUFFER_SIZE + 1];
status = U_ZERO_ERROR;
CFRelativeDateTimeFormatterStyle dateTimeStyle = formatter->_style;
switch (dateTimeStyle) {
case CFRelativeDateTimeFormatterStyleNumeric:
len = __cficu_ureldatefmt_formatNumeric(fmt, offset, icuUnit, result, RESULT_BUFFER_SIZE, &status);
break;
case CFRelativeDateTimeFormatterStyleNamed:
len = __cficu_ureldatefmt_format(fmt, offset, icuUnit, result, RESULT_BUFFER_SIZE, &status);
break;
default:
HALT_MSG("Invalid CFRelativeDateTimeFormatterStyle");
}
CFAssert1(fmt != NULL, __kCFLogAssertion, "%s(): URelativeDateTimeFormatter should not be NULL", __PRETTY_FUNCTION__);
__cficu_ureldatefmt_close(fmt);
if (U_FAILURE(status)){ return NULL; }
if (allocator == NULL) { allocator = __CFGetDefaultAllocator(); }
return CFStringCreateWithCharacters(allocator, result, len);
}
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