811 lines
28 KiB
C
811 lines
28 KiB
C
/*
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*******************************************************************************
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* Copyright (C) 1996-2006, International Business Machines Corporation and others.
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* All Rights Reserved.
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*******************************************************************************
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*/
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#ifndef UDAT_H
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#define UDAT_H
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_FORMATTING
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#include "unicode/ucal.h"
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#include "unicode/unum.h"
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/**
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* \file
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* \brief C API: DateFormat
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*
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* <h2> Date Format C API</h2>
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*
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* Date Format C API consists of functions that convert dates and
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* times from their internal representations to textual form and back again in a
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* language-independent manner. Converting from the internal representation (milliseconds
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* since midnight, January 1, 1970) to text is known as "formatting," and converting
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* from text to millis is known as "parsing." We currently define only one concrete
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* structure UDateFormat, which can handle pretty much all normal
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* date formatting and parsing actions.
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* <P>
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* Date Format helps you to format and parse dates for any locale. Your code can
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* be completely independent of the locale conventions for months, days of the
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* week, or even the calendar format: lunar vs. solar.
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* <P>
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* To format a date for the current Locale with default time and date style,
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* use one of the static factory methods:
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* <pre>
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* \code
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* UErrorCode status = U_ZERO_ERROR;
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* UChar *myString;
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* int32_t myStrlen = 0;
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* UDateFormat* dfmt = udat_open(UDAT_DEFAULT, UDAT_DEFAULT, NULL, NULL, -1, NULL, -1, &status);
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* myStrlen = udat_format(dfmt, myDate, NULL, myStrlen, NULL, &status);
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* if (status==U_BUFFER_OVERFLOW_ERROR){
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* status=U_ZERO_ERROR;
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* myString=(UChar*)malloc(sizeof(UChar) * (myStrlen+1) );
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* udat_format(dfmt, myDate, myString, myStrlen+1, NULL, &status);
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* }
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* \endcode
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* </pre>
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* If you are formatting multiple numbers, it is more efficient to get the
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* format and use it multiple times so that the system doesn't have to fetch the
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* information about the local language and country conventions multiple times.
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* <pre>
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* \code
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* UErrorCode status = U_ZERO_ERROR;
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* int32_t i, myStrlen = 0;
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* UChar* myString;
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* char buffer[1024];
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* UDate myDateArr[] = { 0.0, 100000000.0, 2000000000.0 }; // test values
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* UDateFormat* df = udat_open(UDAT_DEFAULT, UDAT_DEFAULT, NULL, NULL, -1, NULL, 0, &status);
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* for (i = 0; i < 3; i++) {
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* myStrlen = udat_format(df, myDateArr[i], NULL, myStrlen, NULL, &status);
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* if(status == U_BUFFER_OVERFLOW_ERROR){
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* status = U_ZERO_ERROR;
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* myString = (UChar*)malloc(sizeof(UChar) * (myStrlen+1) );
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* udat_format(df, myDateArr[i], myString, myStrlen+1, NULL, &status);
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* printf("%s\n", u_austrcpy(buffer, myString) );
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* free(myString);
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* }
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* }
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* \endcode
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* </pre>
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* To get specific fields of a date, you can use UFieldPosition to
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* get specific fields.
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* <pre>
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* \code
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* UErrorCode status = U_ZERO_ERROR;
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* UFieldPosition pos;
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* UChar *myString;
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* int32_t myStrlen = 0;
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* char buffer[1024];
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*
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* pos.field = 1; // Same as the DateFormat::EField enum
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* UDateFormat* dfmt = udat_open(UDAT_DEFAULT, UDAT_DEFAULT, NULL, -1, NULL, 0, &status);
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* myStrlen = udat_format(dfmt, myDate, NULL, myStrlen, &pos, &status);
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* if (status==U_BUFFER_OVERFLOW_ERROR){
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* status=U_ZERO_ERROR;
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* myString=(UChar*)malloc(sizeof(UChar) * (myStrlen+1) );
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* udat_format(dfmt, myDate, myString, myStrlen+1, &pos, &status);
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* }
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* printf("date format: %s\n", u_austrcpy(buffer, myString));
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* buffer[pos.endIndex] = 0; // NULL terminate the string.
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* printf("UFieldPosition position equals %s\n", &buffer[pos.beginIndex]);
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* \endcode
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* </pre>
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* To format a date for a different Locale, specify it in the call to
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* udat_open()
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* <pre>
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* \code
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* UDateFormat* df = udat_open(UDAT_SHORT, UDAT_SHORT, "fr_FR", NULL, -1, NULL, 0, &status);
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* \endcode
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* </pre>
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* You can use a DateFormat API udat_parse() to parse.
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* <pre>
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* \code
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* UErrorCode status = U_ZERO_ERROR;
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* int32_t parsepos=0;
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* UDate myDate = udat_parse(df, myString, u_strlen(myString), &parsepos, &status);
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* \endcode
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* </pre>
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* You can pass in different options for the arguments for date and time style
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* to control the length of the result; from SHORT to MEDIUM to LONG to FULL.
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* The exact result depends on the locale, but generally:
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* see UDateFormatStyle for more details
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* <ul type=round>
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* <li> UDAT_SHORT is completely numeric, such as 12/13/52 or 3:30pm
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* <li> UDAT_MEDIUM is longer, such as Jan 12, 1952
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* <li> UDAT_LONG is longer, such as January 12, 1952 or 3:30:32pm
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* <li> UDAT_FULL is pretty completely specified, such as
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* Tuesday, April 12, 1952 AD or 3:30:42pm PST.
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* </ul>
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* You can also set the time zone on the format if you wish.
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* <P>
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* You can also use forms of the parse and format methods with Parse Position and
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* UFieldPosition to allow you to
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* <ul type=round>
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* <li> Progressively parse through pieces of a string.
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* <li> Align any particular field, or find out where it is for selection
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* on the screen.
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* </ul>
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*/
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/** A date formatter.
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* For usage in C programs.
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* @stable ICU 2.6
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*/
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typedef void* UDateFormat;
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/** The possible date/time format styles
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* @stable ICU 2.6
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*/
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typedef enum UDateFormatStyle {
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/** Full style */
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UDAT_FULL,
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/** Long style */
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UDAT_LONG,
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/** Medium style */
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UDAT_MEDIUM,
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/** Short style */
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UDAT_SHORT,
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/** Default style */
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UDAT_DEFAULT = UDAT_MEDIUM,
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/** No style */
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UDAT_NONE = -1,
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/** for internal API use only */
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UDAT_IGNORE = -2
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} UDateFormatStyle;
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/**
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* FieldPosition and UFieldPosition selectors for format fields
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* defined by DateFormat and UDateFormat.
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* @stable ICU 3.0
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*/
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typedef enum UDateFormatField {
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/**
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* FieldPosition and UFieldPosition selector for 'G' field alignment,
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* corresponding to the UCAL_ERA field.
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* @stable ICU 3.0
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*/
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UDAT_ERA_FIELD = 0,
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/**
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* FieldPosition and UFieldPosition selector for 'y' field alignment,
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* corresponding to the UCAL_YEAR field.
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* @stable ICU 3.0
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*/
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UDAT_YEAR_FIELD = 1,
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/**
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* FieldPosition and UFieldPosition selector for 'M' field alignment,
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* corresponding to the UCAL_MONTH field.
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* @stable ICU 3.0
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*/
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UDAT_MONTH_FIELD = 2,
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/**
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* FieldPosition and UFieldPosition selector for 'd' field alignment,
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* corresponding to the UCAL_DATE field.
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* @stable ICU 3.0
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*/
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UDAT_DATE_FIELD = 3,
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/**
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* FieldPosition and UFieldPosition selector for 'k' field alignment,
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* corresponding to the UCAL_HOUR_OF_DAY field.
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* UDAT_HOUR_OF_DAY1_FIELD is used for the one-based 24-hour clock.
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* For example, 23:59 + 01:00 results in 24:59.
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* @stable ICU 3.0
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*/
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UDAT_HOUR_OF_DAY1_FIELD = 4,
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/**
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* FieldPosition and UFieldPosition selector for 'H' field alignment,
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* corresponding to the UCAL_HOUR_OF_DAY field.
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* UDAT_HOUR_OF_DAY0_FIELD is used for the zero-based 24-hour clock.
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* For example, 23:59 + 01:00 results in 00:59.
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* @stable ICU 3.0
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*/
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UDAT_HOUR_OF_DAY0_FIELD = 5,
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/**
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* FieldPosition and UFieldPosition selector for 'm' field alignment,
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* corresponding to the UCAL_MINUTE field.
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* @stable ICU 3.0
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*/
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UDAT_MINUTE_FIELD = 6,
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/**
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* FieldPosition and UFieldPosition selector for 's' field alignment,
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* corresponding to the UCAL_SECOND field.
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* @stable ICU 3.0
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*/
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UDAT_SECOND_FIELD = 7,
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/**
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* FieldPosition and UFieldPosition selector for 'S' field alignment,
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* corresponding to the UCAL_MILLISECOND field.
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* @stable ICU 3.0
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*/
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UDAT_FRACTIONAL_SECOND_FIELD = 8,
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/**
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* FieldPosition and UFieldPosition selector for 'E' field alignment,
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* corresponding to the UCAL_DAY_OF_WEEK field.
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* @stable ICU 3.0
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*/
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UDAT_DAY_OF_WEEK_FIELD = 9,
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/**
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* FieldPosition and UFieldPosition selector for 'D' field alignment,
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* corresponding to the UCAL_DAY_OF_YEAR field.
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* @stable ICU 3.0
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*/
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UDAT_DAY_OF_YEAR_FIELD = 10,
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/**
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* FieldPosition and UFieldPosition selector for 'F' field alignment,
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* corresponding to the UCAL_DAY_OF_WEEK_IN_MONTH field.
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* @stable ICU 3.0
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*/
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UDAT_DAY_OF_WEEK_IN_MONTH_FIELD = 11,
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/**
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* FieldPosition and UFieldPosition selector for 'w' field alignment,
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* corresponding to the UCAL_WEEK_OF_YEAR field.
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* @stable ICU 3.0
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*/
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UDAT_WEEK_OF_YEAR_FIELD = 12,
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/**
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* FieldPosition and UFieldPosition selector for 'W' field alignment,
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* corresponding to the UCAL_WEEK_OF_MONTH field.
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* @stable ICU 3.0
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*/
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UDAT_WEEK_OF_MONTH_FIELD = 13,
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/**
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* FieldPosition and UFieldPosition selector for 'a' field alignment,
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* corresponding to the UCAL_AM_PM field.
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* @stable ICU 3.0
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*/
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UDAT_AM_PM_FIELD = 14,
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/**
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* FieldPosition and UFieldPosition selector for 'h' field alignment,
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* corresponding to the UCAL_HOUR field.
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* UDAT_HOUR1_FIELD is used for the one-based 12-hour clock.
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* For example, 11:30 PM + 1 hour results in 12:30 AM.
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* @stable ICU 3.0
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*/
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UDAT_HOUR1_FIELD = 15,
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/**
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* FieldPosition and UFieldPosition selector for 'K' field alignment,
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* corresponding to the UCAL_HOUR field.
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* UDAT_HOUR0_FIELD is used for the zero-based 12-hour clock.
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* For example, 11:30 PM + 1 hour results in 00:30 AM.
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* @stable ICU 3.0
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*/
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UDAT_HOUR0_FIELD = 16,
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/**
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* FieldPosition and UFieldPosition selector for 'z' field alignment,
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* corresponding to the UCAL_ZONE_OFFSET and
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* UCAL_DST_OFFSET fields.
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* @stable ICU 3.0
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*/
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UDAT_TIMEZONE_FIELD = 17,
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/**
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* FieldPosition and UFieldPosition selector for 'Y' field alignment,
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* corresponding to the UCAL_YEAR_WOY field.
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* @stable ICU 3.0
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*/
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UDAT_YEAR_WOY_FIELD = 18,
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/**
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* FieldPosition and UFieldPosition selector for 'e' field alignment,
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* corresponding to the UCAL_DOW_LOCAL field.
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* @stable ICU 3.0
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*/
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UDAT_DOW_LOCAL_FIELD = 19,
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/**
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* FieldPosition and UFieldPosition selector for 'u' field alignment,
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* corresponding to the UCAL_EXTENDED_YEAR field.
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* @stable ICU 3.0
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*/
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UDAT_EXTENDED_YEAR_FIELD = 20,
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/**
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* FieldPosition and UFieldPosition selector for 'g' field alignment,
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* corresponding to the UCAL_JULIAN_DAY field.
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* @stable ICU 3.0
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*/
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UDAT_JULIAN_DAY_FIELD = 21,
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/**
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* FieldPosition and UFieldPosition selector for 'A' field alignment,
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* corresponding to the UCAL_MILLISECONDS_IN_DAY field.
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* @stable ICU 3.0
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*/
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UDAT_MILLISECONDS_IN_DAY_FIELD = 22,
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/**
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* FieldPosition and UFieldPosition selector for 'Z' field alignment,
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* corresponding to the UCAL_ZONE_OFFSET and
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* UCAL_DST_OFFSET fields.
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* @stable ICU 3.0
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*/
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UDAT_TIMEZONE_RFC_FIELD = 23,
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#ifndef U_HIDE_DRAFT_API
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/**
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* FieldPosition and UFieldPosition selector for 'v' field alignment,
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* corresponding to the UCAL_ZONE_OFFSET field.
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* @draft ICU 3.4
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*/
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UDAT_TIMEZONE_GENERIC_FIELD = 24,
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/**
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* FieldPosition selector for 'c' field alignment,
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* corresponding to the {@link Calendar#DAY} field.
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* This displays the stand alone day name, if available.
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* @draft ICU 3.4
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*/
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UDAT_STANDALONE_DAY_FIELD = 25,
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/**
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* FieldPosition selector for 'L' field alignment,
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* corresponding to the {@link Calendar#MONTH} field.
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* This displays the stand alone month name, if available.
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* @draft ICU 3.4
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*/
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UDAT_STANDALONE_MONTH_FIELD = 26,
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/**
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* FieldPosition selector for "Q" field alignment,
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* corresponding to quarters. This is implemented
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* using the {@link Calendar#MONTH} field. This
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* displays the quarter.
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* @draft ICU 3.6
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*/
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UDAT_QUARTER_FIELD = 27,
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/**
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* FieldPosition selector for the "q" field alignment,
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* corresponding to stand-alone quarters. This is
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* implemented using the {@link Calendar#MONTH} field.
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* This displays the stand-alone quarter.
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* @draft ICU 3.6
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*/
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UDAT_STANDALONE_QUARTER_FIELD = 28,
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#endif /*U_HIDE_DRAFT_API*/
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/**
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* Number of FieldPosition and UFieldPosition selectors for
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* DateFormat and UDateFormat.
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* Valid selectors range from 0 to UDAT_FIELD_COUNT-1.
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* This value is subject to change if new fields are defined
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* in the future.
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* @stable ICU 3.0
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*/
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UDAT_FIELD_COUNT = 29
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} UDateFormatField;
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/**
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* Open a new UDateFormat for formatting and parsing dates and times.
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* A UDateFormat may be used to format dates in calls to {@link #udat_format },
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* and to parse dates in calls to {@link #udat_parse }.
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* @param timeStyle The style used to format times; one of UDAT_FULL, UDAT_LONG,
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* UDAT_MEDIUM, UDAT_SHORT, or UDAT_DEFAULT
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* @param dateStyle The style used to format dates; one of UDAT_FULL, UDAT_LONG,
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* UDAT_MEDIUM, UDAT_SHORT, or UDAT_DEFAULT
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* @param locale The locale specifying the formatting conventions
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* @param tzID A timezone ID specifying the timezone to use. If 0, use
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* the default timezone.
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* @param tzIDLength The length of tzID, or -1 if null-terminated.
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* @param pattern A pattern specifying the format to use.
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* @param patternLength The number of characters in the pattern, or -1 if null-terminated.
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* @param status A pointer to an UErrorCode to receive any errors
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* @return A pointer to a UDateFormat to use for formatting dates and times, or 0 if
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* an error occurred.
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* @stable ICU 2.0
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*/
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U_STABLE UDateFormat* U_EXPORT2
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udat_open(UDateFormatStyle timeStyle,
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UDateFormatStyle dateStyle,
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const char *locale,
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const UChar *tzID,
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int32_t tzIDLength,
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const UChar *pattern,
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int32_t patternLength,
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UErrorCode *status);
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|
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/**
|
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* Close a UDateFormat.
|
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* Once closed, a UDateFormat may no longer be used.
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* @param format The formatter to close.
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* @stable ICU 2.0
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*/
|
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U_STABLE void U_EXPORT2
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udat_close(UDateFormat* format);
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|
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/**
|
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* Open a copy of a UDateFormat.
|
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* This function performs a deep copy.
|
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* @param fmt The format to copy
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* @param status A pointer to an UErrorCode to receive any errors.
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* @return A pointer to a UDateFormat identical to fmt.
|
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* @stable ICU 2.0
|
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*/
|
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U_STABLE UDateFormat* U_EXPORT2
|
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udat_clone(const UDateFormat *fmt,
|
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UErrorCode *status);
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|
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/**
|
|
* Format a date using an UDateFormat.
|
|
* The date will be formatted using the conventions specified in {@link #udat_open }
|
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* @param format The formatter to use
|
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* @param dateToFormat The date to format
|
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* @param result A pointer to a buffer to receive the formatted number.
|
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* @param resultLength The maximum size of result.
|
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* @param position A pointer to a UFieldPosition. On input, position->field
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* is read. On output, position->beginIndex and position->endIndex indicate
|
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* the beginning and ending indices of field number position->field, if such
|
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* a field exists. This parameter may be NULL, in which case no field
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* position data is returned.
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* @param status A pointer to an UErrorCode to receive any errors
|
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* @return The total buffer size needed; if greater than resultLength, the output was truncated.
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* @see udat_parse
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* @see UFieldPosition
|
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* @stable ICU 2.0
|
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*/
|
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U_STABLE int32_t U_EXPORT2
|
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udat_format( const UDateFormat* format,
|
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UDate dateToFormat,
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UChar* result,
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int32_t resultLength,
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UFieldPosition* position,
|
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UErrorCode* status);
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|
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/**
|
|
* Parse a string into an date/time using a UDateFormat.
|
|
* The date will be parsed using the conventions specified in {@link #udat_open }
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* @param format The formatter to use.
|
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* @param text The text to parse.
|
|
* @param textLength The length of text, or -1 if null-terminated.
|
|
* @param parsePos If not 0, on input a pointer to an integer specifying the offset at which
|
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* to begin parsing. If not 0, on output the offset at which parsing ended.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @return The value of the parsed date/time
|
|
* @see udat_format
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE UDate U_EXPORT2
|
|
udat_parse( const UDateFormat* format,
|
|
const UChar* text,
|
|
int32_t textLength,
|
|
int32_t *parsePos,
|
|
UErrorCode *status);
|
|
|
|
/**
|
|
* Parse a string into an date/time using a UDateFormat.
|
|
* The date will be parsed using the conventions specified in {@link #udat_open }
|
|
* @param format The formatter to use.
|
|
* @param calendar The calendar in which to store the parsed data.
|
|
* @param text The text to parse.
|
|
* @param textLength The length of text, or -1 if null-terminated.
|
|
* @param parsePos If not 0, on input a pointer to an integer specifying the offset at which
|
|
* to begin parsing. If not 0, on output the offset at which parsing ended.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @see udat_format
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
udat_parseCalendar(const UDateFormat* format,
|
|
UCalendar* calendar,
|
|
const UChar* text,
|
|
int32_t textLength,
|
|
int32_t *parsePos,
|
|
UErrorCode *status);
|
|
|
|
/**
|
|
* Determine if an UDateFormat will perform lenient parsing.
|
|
* With lenient parsing, the parser may use heuristics to interpret inputs that do not
|
|
* precisely match the pattern. With strict parsing, inputs must match the pattern.
|
|
* @param fmt The formatter to query
|
|
* @return TRUE if fmt is set to perform lenient parsing, FALSE otherwise.
|
|
* @see udat_setLenient
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE UBool U_EXPORT2
|
|
udat_isLenient(const UDateFormat* fmt);
|
|
|
|
/**
|
|
* Specify whether an UDateFormat will perform lenient parsing.
|
|
* With lenient parsing, the parser may use heuristics to interpret inputs that do not
|
|
* precisely match the pattern. With strict parsing, inputs must match the pattern.
|
|
* @param fmt The formatter to set
|
|
* @param isLenient TRUE if fmt should perform lenient parsing, FALSE otherwise.
|
|
* @see dat_isLenient
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
udat_setLenient( UDateFormat* fmt,
|
|
UBool isLenient);
|
|
|
|
/**
|
|
* Get the UCalendar associated with an UDateFormat.
|
|
* A UDateFormat uses a UCalendar to convert a raw value to, for example,
|
|
* the day of the week.
|
|
* @param fmt The formatter to query.
|
|
* @return A pointer to the UCalendar used by fmt.
|
|
* @see udat_setCalendar
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE const UCalendar* U_EXPORT2
|
|
udat_getCalendar(const UDateFormat* fmt);
|
|
|
|
/**
|
|
* Set the UCalendar associated with an UDateFormat.
|
|
* A UDateFormat uses a UCalendar to convert a raw value to, for example,
|
|
* the day of the week.
|
|
* @param fmt The formatter to set.
|
|
* @param calendarToSet A pointer to an UCalendar to be used by fmt.
|
|
* @see udat_setCalendar
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
udat_setCalendar( UDateFormat* fmt,
|
|
const UCalendar* calendarToSet);
|
|
|
|
/**
|
|
* Get the UNumberFormat associated with an UDateFormat.
|
|
* A UDateFormat uses a UNumberFormat to format numbers within a date,
|
|
* for example the day number.
|
|
* @param fmt The formatter to query.
|
|
* @return A pointer to the UNumberFormat used by fmt to format numbers.
|
|
* @see udat_setNumberFormat
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE const UNumberFormat* U_EXPORT2
|
|
udat_getNumberFormat(const UDateFormat* fmt);
|
|
|
|
/**
|
|
* Set the UNumberFormat associated with an UDateFormat.
|
|
* A UDateFormat uses a UNumberFormat to format numbers within a date,
|
|
* for example the day number.
|
|
* @param fmt The formatter to set.
|
|
* @param numberFormatToSet A pointer to the UNumberFormat to be used by fmt to format numbers.
|
|
* @see udat_getNumberFormat
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
udat_setNumberFormat( UDateFormat* fmt,
|
|
const UNumberFormat* numberFormatToSet);
|
|
|
|
/**
|
|
* Get a locale for which date/time formatting patterns are available.
|
|
* A UDateFormat in a locale returned by this function will perform the correct
|
|
* formatting and parsing for the locale.
|
|
* @param index The index of the desired locale.
|
|
* @return A locale for which date/time formatting patterns are available, or 0 if none.
|
|
* @see udat_countAvailable
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE const char* U_EXPORT2
|
|
udat_getAvailable(int32_t index);
|
|
|
|
/**
|
|
* Determine how many locales have date/time formatting patterns available.
|
|
* This function is most useful as determining the loop ending condition for
|
|
* calls to {@link #udat_getAvailable }.
|
|
* @return The number of locales for which date/time formatting patterns are available.
|
|
* @see udat_getAvailable
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE int32_t U_EXPORT2
|
|
udat_countAvailable(void);
|
|
|
|
/**
|
|
* Get the year relative to which all 2-digit years are interpreted.
|
|
* For example, if the 2-digit start year is 2100, the year 99 will be
|
|
* interpreted as 2199.
|
|
* @param fmt The formatter to query.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @return The year relative to which all 2-digit years are interpreted.
|
|
* @see udat_Set2DigitYearStart
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE UDate U_EXPORT2
|
|
udat_get2DigitYearStart( const UDateFormat *fmt,
|
|
UErrorCode *status);
|
|
|
|
/**
|
|
* Set the year relative to which all 2-digit years will be interpreted.
|
|
* For example, if the 2-digit start year is 2100, the year 99 will be
|
|
* interpreted as 2199.
|
|
* @param fmt The formatter to set.
|
|
* @param d The year relative to which all 2-digit years will be interpreted.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @see udat_Set2DigitYearStart
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
udat_set2DigitYearStart( UDateFormat *fmt,
|
|
UDate d,
|
|
UErrorCode *status);
|
|
|
|
/**
|
|
* Extract the pattern from a UDateFormat.
|
|
* The pattern will follow the pattern syntax rules.
|
|
* @param fmt The formatter to query.
|
|
* @param localized TRUE if the pattern should be localized, FALSE otherwise.
|
|
* @param result A pointer to a buffer to receive the pattern.
|
|
* @param resultLength The maximum size of result.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @return The total buffer size needed; if greater than resultLength, the output was truncated.
|
|
* @see udat_applyPattern
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE int32_t U_EXPORT2
|
|
udat_toPattern( const UDateFormat *fmt,
|
|
UBool localized,
|
|
UChar *result,
|
|
int32_t resultLength,
|
|
UErrorCode *status);
|
|
|
|
/**
|
|
* Set the pattern used by an UDateFormat.
|
|
* The pattern should follow the pattern syntax rules.
|
|
* @param format The formatter to set.
|
|
* @param localized TRUE if the pattern is localized, FALSE otherwise.
|
|
* @param pattern The new pattern
|
|
* @param patternLength The length of pattern, or -1 if null-terminated.
|
|
* @see udat_toPattern
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
udat_applyPattern( UDateFormat *format,
|
|
UBool localized,
|
|
const UChar *pattern,
|
|
int32_t patternLength);
|
|
|
|
/**
|
|
* The possible types of date format symbols
|
|
* @stable ICU 2.6
|
|
*/
|
|
typedef enum UDateFormatSymbolType {
|
|
/** The era names, for example AD */
|
|
UDAT_ERAS,
|
|
/** The month names, for example February */
|
|
UDAT_MONTHS,
|
|
/** The short month names, for example Feb. */
|
|
UDAT_SHORT_MONTHS,
|
|
/** The weekday names, for example Monday */
|
|
UDAT_WEEKDAYS,
|
|
/** The short weekday names, for example Mon. */
|
|
UDAT_SHORT_WEEKDAYS,
|
|
/** The AM/PM names, for example AM */
|
|
UDAT_AM_PMS,
|
|
/** The localized characters */
|
|
UDAT_LOCALIZED_CHARS,
|
|
/** The long era names, for example Anno Domini */
|
|
UDAT_ERA_NAMES,
|
|
/** The narrow month names, for example F */
|
|
UDAT_NARROW_MONTHS,
|
|
/** The narrow weekday names, for example N */
|
|
UDAT_NARROW_WEEKDAYS,
|
|
/** Standalone context versions of months */
|
|
UDAT_STANDALONE_MONTHS,
|
|
UDAT_STANDALONE_SHORT_MONTHS,
|
|
UDAT_STANDALONE_NARROW_MONTHS,
|
|
/** Standalone context versions of weekdays */
|
|
UDAT_STANDALONE_WEEKDAYS,
|
|
UDAT_STANDALONE_SHORT_WEEKDAYS,
|
|
UDAT_STANDALONE_NARROW_WEEKDAYS,
|
|
/** The quarters, for example 1st Quarter */
|
|
UDAT_QUARTERS,
|
|
/** The short quarter names, for example Q1 */
|
|
UDAT_SHORT_QUARTERS,
|
|
/** Standalone context versions of quarters */
|
|
UDAT_STANDALONE_QUARTERS,
|
|
UDAT_STANDALONE_SHORT_QUARTERS
|
|
|
|
} UDateFormatSymbolType;
|
|
|
|
struct UDateFormatSymbols;
|
|
/** Date format symbols.
|
|
* For usage in C programs.
|
|
* @stable ICU 2.6
|
|
*/
|
|
typedef struct UDateFormatSymbols UDateFormatSymbols;
|
|
|
|
/**
|
|
* Get the symbols associated with an UDateFormat.
|
|
* The symbols are what a UDateFormat uses to represent locale-specific data,
|
|
* for example month or day names.
|
|
* @param fmt The formatter to query.
|
|
* @param type The type of symbols to get. One of UDAT_ERAS, UDAT_MONTHS, UDAT_SHORT_MONTHS,
|
|
* UDAT_WEEKDAYS, UDAT_SHORT_WEEKDAYS, UDAT_AM_PMS, or UDAT_LOCALIZED_CHARS
|
|
* @param index The desired symbol of type type.
|
|
* @param result A pointer to a buffer to receive the pattern.
|
|
* @param resultLength The maximum size of result.
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @return The total buffer size needed; if greater than resultLength, the output was truncated.
|
|
* @see udat_countSymbols
|
|
* @see udat_setSymbols
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE int32_t U_EXPORT2
|
|
udat_getSymbols(const UDateFormat *fmt,
|
|
UDateFormatSymbolType type,
|
|
int32_t index,
|
|
UChar *result,
|
|
int32_t resultLength,
|
|
UErrorCode *status);
|
|
|
|
/**
|
|
* Count the number of particular symbols for an UDateFormat.
|
|
* This function is most useful as for detemining the loop termination condition
|
|
* for calls to {@link #udat_getSymbols }.
|
|
* @param fmt The formatter to query.
|
|
* @param type The type of symbols to count. One of UDAT_ERAS, UDAT_MONTHS, UDAT_SHORT_MONTHS,
|
|
* UDAT_WEEKDAYS, UDAT_SHORT_WEEKDAYS, UDAT_AM_PMS, or UDAT_LOCALIZED_CHARS
|
|
* @return The number of symbols of type type.
|
|
* @see udat_getSymbols
|
|
* @see udat_setSymbols
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE int32_t U_EXPORT2
|
|
udat_countSymbols( const UDateFormat *fmt,
|
|
UDateFormatSymbolType type);
|
|
|
|
/**
|
|
* Set the symbols associated with an UDateFormat.
|
|
* The symbols are what a UDateFormat uses to represent locale-specific data,
|
|
* for example month or day names.
|
|
* @param format The formatter to set
|
|
* @param type The type of symbols to set. One of UDAT_ERAS, UDAT_MONTHS, UDAT_SHORT_MONTHS,
|
|
* UDAT_WEEKDAYS, UDAT_SHORT_WEEKDAYS, UDAT_AM_PMS, or UDAT_LOCALIZED_CHARS
|
|
* @param index The index of the symbol to set of type type.
|
|
* @param value The new value
|
|
* @param valueLength The length of value, or -1 if null-terminated
|
|
* @param status A pointer to an UErrorCode to receive any errors
|
|
* @see udat_getSymbols
|
|
* @see udat_countSymbols
|
|
* @stable ICU 2.0
|
|
*/
|
|
U_STABLE void U_EXPORT2
|
|
udat_setSymbols( UDateFormat *format,
|
|
UDateFormatSymbolType type,
|
|
int32_t index,
|
|
UChar *value,
|
|
int32_t valueLength,
|
|
UErrorCode *status);
|
|
|
|
/**
|
|
* Get the locale for this date format object.
|
|
* You can choose between valid and actual locale.
|
|
* @param fmt The formatter to get the locale from
|
|
* @param type type of the locale we're looking for (valid or actual)
|
|
* @param status error code for the operation
|
|
* @return the locale name
|
|
* @stable ICU 2.8
|
|
*/
|
|
U_STABLE const char* U_EXPORT2
|
|
udat_getLocaleByType(const UDateFormat *fmt,
|
|
ULocDataLocaleType type,
|
|
UErrorCode* status);
|
|
|
|
#endif /* #if !UCONFIG_NO_FORMATTING */
|
|
|
|
#endif
|