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Posted to commits@couchdb.apache.org by da...@apache.org on 2014/02/06 18:28:00 UTC

[18/46] support static build

http://git-wip-us.apache.org/repos/asf/couchdb-couch-collate/blob/32ffa429/platform/osx/icu/unicode/ucoleitr.h
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diff --git a/platform/osx/icu/unicode/ucoleitr.h b/platform/osx/icu/unicode/ucoleitr.h
new file mode 100644
index 0000000..9c951a9
--- /dev/null
+++ b/platform/osx/icu/unicode/ucoleitr.h
@@ -0,0 +1,315 @@
+/*
+*******************************************************************************
+*   Copyright (C) 2001-2008, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+*******************************************************************************
+*
+* File ucoleitr.cpp
+*
+* Modification History:
+*
+* Date        Name        Description
+* 02/15/2001  synwee      Modified all methods to process its own function 
+*                         instead of calling the equivalent c++ api (coleitr.h)
+*******************************************************************************/
+
+#ifndef UCOLEITR_H
+#define UCOLEITR_H
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_COLLATION
+
+/**  
+ * This indicates an error has occured during processing or if no more CEs is 
+ * to be returned.
+ * @stable ICU 2.0
+ */
+#define UCOL_NULLORDER        ((int32_t)0xFFFFFFFF)
+
+/**  
+ * This indicates an error has occured during processing or there are no more CEs 
+ * to be returned.
+ *
+ * @internal
+ */
+#define UCOL_PROCESSED_NULLORDER        ((int64_t)U_INT64_MAX)
+
+#include "unicode/ucol.h"
+
+/** 
+ * The UCollationElements struct.
+ * For usage in C programs.
+ * @stable ICU 2.0
+ */
+typedef struct UCollationElements UCollationElements;
+
+/**
+ * \file
+ * \brief C API: UCollationElements
+ *
+ * The UCollationElements API is used as an iterator to walk through each 
+ * character of an international string. Use the iterator to return the
+ * ordering priority of the positioned character. The ordering priority of a 
+ * character, which we refer to as a key, defines how a character is collated 
+ * in the given collation object.
+ * For example, consider the following in Spanish:
+ * <pre>
+ * .       "ca" -> the first key is key('c') and second key is key('a').
+ * .       "cha" -> the first key is key('ch') and second key is key('a').
+ * </pre>
+ * And in German,
+ * <pre>
+ * .       "<ae ligature>b"-> the first key is key('a'), the second key is key('e'), and
+ * .       the third key is key('b').
+ * </pre>
+ * <p>Example of the iterator usage: (without error checking)
+ * <pre>
+ * .  void CollationElementIterator_Example()
+ * .  {
+ * .      UChar *s;
+ * .      t_int32 order, primaryOrder;
+ * .      UCollationElements *c;
+ * .      UCollatorOld *coll;
+ * .      UErrorCode success = U_ZERO_ERROR;
+ * .      s=(UChar*)malloc(sizeof(UChar) * (strlen("This is a test")+1) );
+ * .      u_uastrcpy(s, "This is a test");
+ * .      coll = ucol_open(NULL, &success);
+ * .      c = ucol_openElements(coll, str, u_strlen(str), &status);
+ * .      order = ucol_next(c, &success);
+ * .      ucol_reset(c);
+ * .      order = ucol_prev(c, &success);
+ * .      free(s);
+ * .      ucol_close(coll);
+ * .      ucol_closeElements(c);
+ * .  }
+ * </pre>
+ * <p>
+ * ucol_next() returns the collation order of the next.
+ * ucol_prev() returns the collation order of the previous character.
+ * The Collation Element Iterator moves only in one direction between calls to
+ * ucol_reset. That is, ucol_next() and ucol_prev can not be inter-used. 
+ * Whenever ucol_prev is to be called after ucol_next() or vice versa, 
+ * ucol_reset has to be called first to reset the status, shifting pointers to 
+ * either the end or the start of the string. Hence at the next call of 
+ * ucol_prev or ucol_next, the first or last collation order will be returned. 
+ * If a change of direction is done without a ucol_reset, the result is 
+ * undefined.
+ * The result of a forward iterate (ucol_next) and reversed result of the  
+ * backward iterate (ucol_prev) on the same string are equivalent, if 
+ * collation orders with the value UCOL_IGNORABLE are ignored.
+ * Character based on the comparison level of the collator.  A collation order 
+ * consists of primary order, secondary order and tertiary order.  The data 
+ * type of the collation order is <strong>t_int32</strong>. 
+ *
+ * @see UCollator
+ */
+
+/**
+ * Open the collation elements for a string.
+ *
+ * @param coll The collator containing the desired collation rules.
+ * @param text The text to iterate over.
+ * @param textLength The number of characters in text, or -1 if null-terminated
+ * @param status A pointer to an UErrorCode to receive any errors.
+ * @return a struct containing collation element information
+ * @stable ICU 2.0
+ */
+U_STABLE UCollationElements* U_EXPORT2 
+ucol_openElements(const UCollator  *coll,
+                  const UChar      *text,
+                        int32_t    textLength,
+                        UErrorCode *status);
+
+/**
+ * get a hash code for a key... Not very useful!
+ * @param key    the given key.
+ * @param length the size of the key array.
+ * @return       the hash code.
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2 
+ucol_keyHashCode(const uint8_t* key, int32_t length);
+
+/**
+ * Close a UCollationElements.
+ * Once closed, a UCollationElements may no longer be used.
+ * @param elems The UCollationElements to close.
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2 
+ucol_closeElements(UCollationElements *elems);
+
+/**
+ * Reset the collation elements to their initial state.
+ * This will move the 'cursor' to the beginning of the text.
+ * Property settings for collation will be reset to the current status.
+ * @param elems The UCollationElements to reset.
+ * @see ucol_next
+ * @see ucol_previous
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2 
+ucol_reset(UCollationElements *elems);
+
+/**
+ * Get the ordering priority of the next collation element in the text.
+ * A single character may contain more than one collation element.
+ * @param elems The UCollationElements containing the text.
+ * @param status A pointer to an UErrorCode to receive any errors.
+ * @return The next collation elements ordering, otherwise returns NULLORDER 
+ *         if an error has occured or if the end of string has been reached
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2 
+ucol_next(UCollationElements *elems, UErrorCode *status);
+
+/**
+ * Get the ordering priority of the previous collation element in the text.
+ * A single character may contain more than one collation element.
+ * Note that internally a stack is used to store buffered collation elements. 
+ * It is very rare that the stack will overflow, however if such a case is 
+ * encountered, the problem can be solved by increasing the size 
+ * UCOL_EXPAND_CE_BUFFER_SIZE in ucol_imp.h.
+ * @param elems The UCollationElements containing the text.
+ * @param status A pointer to an UErrorCode to receive any errors. Noteably 
+ *               a U_BUFFER_OVERFLOW_ERROR is returned if the internal stack
+ *               buffer has been exhausted.
+ * @return The previous collation elements ordering, otherwise returns 
+ *         NULLORDER if an error has occured or if the start of string has 
+ *         been reached.
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2 
+ucol_previous(UCollationElements *elems, UErrorCode *status);
+
+/**
+ * Get the processed ordering priority of the next collation element in the text.
+ * A single character may contain more than one collation element.
+ *
+ * @param elems The UCollationElements containing the text.
+ * @param ixLow a pointer to an int32_t to receive the iterator index before fetching the CE.
+ * @param ixHigh a pointer to an int32_t to receive the iterator index after fetching the CE.
+ * @param status A pointer to an UErrorCode to receive any errors.
+ * @return The next collation elements ordering, otherwise returns UCOL_PROCESSED_NULLORDER 
+ *         if an error has occured or if the end of string has been reached
+ *
+ * @internal
+ */
+U_INTERNAL int64_t U_EXPORT2
+ucol_nextProcessed(UCollationElements *elems, int32_t *ixLow, int32_t *ixHigh, UErrorCode *status);
+
+/**
+ * Get the processed ordering priority of the previous collation element in the text.
+ * A single character may contain more than one collation element.
+ * Note that internally a stack is used to store buffered collation elements. 
+ * It is very rare that the stack will overflow, however if such a case is 
+ * encountered, the problem can be solved by increasing the size 
+ * UCOL_EXPAND_CE_BUFFER_SIZE in ucol_imp.h.
+ *
+ * @param elems The UCollationElements containing the text.
+ * @param ixLow A pointer to an int32_t to receive the iterator index after fetching the CE
+ * @param ixHigh A pointer to an int32_t to receiver the iterator index before fetching the CE
+ * @param status A pointer to an UErrorCode to receive any errors. Noteably 
+ *               a U_BUFFER_OVERFLOW_ERROR is returned if the internal stack
+ *               buffer has been exhausted.
+ * @return The previous collation elements ordering, otherwise returns 
+ *         UCOL_PROCESSED_NULLORDER if an error has occured or if the start of
+ *         string has been reached.
+ *
+ * @internal
+ */
+U_INTERNAL int64_t U_EXPORT2
+ucol_previousProcessed(UCollationElements *elems, int32_t *ixLow, int32_t *ixHigh, UErrorCode *status);
+
+/**
+ * Get the maximum length of any expansion sequences that end with the 
+ * specified comparison order.
+ * This is useful for .... ?
+ * @param elems The UCollationElements containing the text.
+ * @param order A collation order returned by previous or next.
+ * @return maximum size of the expansion sequences ending with the collation 
+ *         element or 1 if collation element does not occur at the end of any 
+ *         expansion sequence
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2 
+ucol_getMaxExpansion(const UCollationElements *elems, int32_t order);
+
+/**
+ * Set the text containing the collation elements.
+ * Property settings for collation will remain the same.
+ * In order to reset the iterator to the current collation property settings,
+ * the API reset() has to be called.
+ * @param elems The UCollationElements to set.
+ * @param text The source text containing the collation elements.
+ * @param textLength The length of text, or -1 if null-terminated.
+ * @param status A pointer to an UErrorCode to receive any errors.
+ * @see ucol_getText
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2 
+ucol_setText(      UCollationElements *elems, 
+             const UChar              *text,
+                   int32_t            textLength,
+                   UErrorCode         *status);
+
+/**
+ * Get the offset of the current source character.
+ * This is an offset into the text of the character containing the current
+ * collation elements.
+ * @param elems The UCollationElements to query.
+ * @return The offset of the current source character.
+ * @see ucol_setOffset
+ * @stable ICU 2.0
+ */
+U_STABLE int32_t U_EXPORT2 
+ucol_getOffset(const UCollationElements *elems);
+
+/**
+ * Set the offset of the current source character.
+ * This is an offset into the text of the character to be processed.
+ * Property settings for collation will remain the same.
+ * In order to reset the iterator to the current collation property settings,
+ * the API reset() has to be called.
+ * @param elems The UCollationElements to set.
+ * @param offset The desired character offset.
+ * @param status A pointer to an UErrorCode to receive any errors.
+ * @see ucol_getOffset
+ * @stable ICU 2.0
+ */
+U_STABLE void U_EXPORT2 
+ucol_setOffset(UCollationElements *elems,
+               int32_t        offset,
+               UErrorCode         *status);
+
+/**
+* Get the primary order of a collation order.
+* @param order the collation order
+* @return the primary order of a collation order.
+* @stable ICU 2.6
+*/
+U_STABLE int32_t U_EXPORT2
+ucol_primaryOrder (int32_t order); 
+
+/**
+* Get the secondary order of a collation order.
+* @param order the collation order
+* @return the secondary order of a collation order.
+* @stable ICU 2.6
+*/
+U_STABLE int32_t U_EXPORT2
+ucol_secondaryOrder (int32_t order); 
+
+/**
+* Get the tertiary order of a collation order.
+* @param order the collation order
+* @return the tertiary order of a collation order.
+* @stable ICU 2.6
+*/
+U_STABLE int32_t U_EXPORT2
+ucol_tertiaryOrder (int32_t order); 
+
+#endif /* #if !UCONFIG_NO_COLLATION */
+
+#endif

http://git-wip-us.apache.org/repos/asf/couchdb-couch-collate/blob/32ffa429/platform/osx/icu/unicode/uconfig.h
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diff --git a/platform/osx/icu/unicode/uconfig.h b/platform/osx/icu/unicode/uconfig.h
new file mode 100644
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+/*  
+**********************************************************************
+*   Copyright (C) 2002-2008, International Business Machines
+*   Corporation and others.  All Rights Reserved.
+**********************************************************************
+*   file name:  uconfig.h
+*   encoding:   US-ASCII
+*   tab size:   8 (not used)
+*   indentation:4
+*
+*   created on: 2002sep19
+*   created by: Markus W. Scherer
+*/
+
+#ifndef __UCONFIG_H__
+#define __UCONFIG_H__
+
+
+/*!
+ * \file
+ * \brief Switches for excluding parts of ICU library code modules.
+ *
+ * Allows to build partial, smaller libraries for special purposes.
+ * By default, all modules are built.
+ * The switches are fairly coarse, controlling large modules.
+ * Basic services cannot be turned off.
+ *
+ * Building with any of these options does not guarantee that the
+ * ICU build process will completely work. It is recommended that
+ * the ICU libraries and data be built using the normal build.
+ * At that time you should remove the data used by those services.
+ * After building the ICU data library, you should rebuild the ICU
+ * libraries with these switches customized to your needs.
+ *
+ * @stable ICU 2.4
+ */
+
+/**
+ * \def UCONFIG_USE_LOCAL
+ * If this switch is defined, ICU will attempt to load a header file named "uconfig_local.h"
+ * prior to determining default settings for uconfig variables.
+ * 
+ * @internal ICU 4.0
+ * 
+ */
+#if defined(UCONFIG_USE_LOCAL)
+#include "uconfig_local.h"
+#endif
+
+/**
+ * \def UCONFIG_ONLY_COLLATION
+ * This switch turns off modules that are not needed for collation.
+ *
+ * It does not turn off legacy conversion because that is necessary
+ * for ICU to work on EBCDIC platforms (for the default converter).
+ * If you want "only collation" and do not build for EBCDIC,
+ * then you can define UCONFIG_NO_LEGACY_CONVERSION 1 as well.
+ *
+ * @stable ICU 2.4
+ */
+#ifndef UCONFIG_ONLY_COLLATION
+#   define UCONFIG_ONLY_COLLATION 0
+#endif
+
+#if UCONFIG_ONLY_COLLATION
+    /* common library */
+#   define UCONFIG_NO_BREAK_ITERATION 1
+#   define UCONFIG_NO_IDNA 1
+
+    /* i18n library */
+#   if UCONFIG_NO_COLLATION
+#       error Contradictory collation switches in uconfig.h.
+#   endif
+#   define UCONFIG_NO_FORMATTING 1
+#   define UCONFIG_NO_TRANSLITERATION 1
+#   define UCONFIG_NO_REGULAR_EXPRESSIONS 1
+#endif
+
+/* common library switches -------------------------------------------------- */
+
+/**
+ * \def UCONFIG_NO_FILE_IO
+ * This switch turns off all file access in the common library
+ * where file access is only used for data loading.
+ * ICU data must then be provided in the form of a data DLL (or with an
+ * equivalent way to link to the data residing in an executable,
+ * as in building a combined library with both the common library's code and
+ * the data), or via udata_setCommonData().
+ * Application data must be provided via udata_setAppData() or by using
+ * "open" functions that take pointers to data, for example ucol_openBinary().
+ *
+ * File access is not used at all in the i18n library.
+ *
+ * File access cannot be turned off for the icuio library or for the ICU
+ * test suites and ICU tools.
+ *
+ * @stable ICU 3.6
+ */
+#ifndef UCONFIG_NO_FILE_IO
+#   define UCONFIG_NO_FILE_IO 0
+#endif
+
+/**
+ * \def UCONFIG_NO_CONVERSION
+ * ICU will not completely build with this switch turned on.
+ * This switch turns off all converters.
+ *
+ * @stable ICU 3.2
+ */
+#ifndef UCONFIG_NO_CONVERSION
+#   define UCONFIG_NO_CONVERSION 0
+#endif
+
+#if UCONFIG_NO_CONVERSION
+#   define UCONFIG_NO_LEGACY_CONVERSION 1
+#endif
+
+/**
+ * \def UCONFIG_NO_LEGACY_CONVERSION
+ * This switch turns off all converters except for
+ * - Unicode charsets (UTF-7/8/16/32, CESU-8, SCSU, BOCU-1)
+ * - US-ASCII
+ * - ISO-8859-1
+ *
+ * Turning off legacy conversion is not possible on EBCDIC platforms
+ * because they need ibm-37 or ibm-1047 default converters.
+ *
+ * @stable ICU 2.4
+ */
+#ifndef UCONFIG_NO_LEGACY_CONVERSION
+#   define UCONFIG_NO_LEGACY_CONVERSION 0
+#endif
+
+/**
+ * \def UCONFIG_NO_NORMALIZATION
+ * This switch turns off normalization.
+ * It implies turning off several other services as well, for example
+ * collation and IDNA.
+ *
+ * @stable ICU 2.6
+ */
+#ifndef UCONFIG_NO_NORMALIZATION
+#   define UCONFIG_NO_NORMALIZATION 0
+#elif UCONFIG_NO_NORMALIZATION
+    /* common library */
+#   define UCONFIG_NO_IDNA 1
+
+    /* i18n library */
+#   if UCONFIG_ONLY_COLLATION
+#       error Contradictory collation switches in uconfig.h.
+#   endif
+#   define UCONFIG_NO_COLLATION 1
+#   define UCONFIG_NO_TRANSLITERATION 1
+#endif
+
+/**
+ * \def UCONFIG_NO_BREAK_ITERATION
+ * This switch turns off break iteration.
+ *
+ * @stable ICU 2.4
+ */
+#ifndef UCONFIG_NO_BREAK_ITERATION
+#   define UCONFIG_NO_BREAK_ITERATION 0
+#endif
+
+/**
+ * \def UCONFIG_NO_IDNA
+ * This switch turns off IDNA.
+ *
+ * @stable ICU 2.6
+ */
+#ifndef UCONFIG_NO_IDNA
+#   define UCONFIG_NO_IDNA 0
+#endif
+
+/* i18n library switches ---------------------------------------------------- */
+
+/**
+ * \def UCONFIG_NO_COLLATION
+ * This switch turns off collation and collation-based string search.
+ *
+ * @stable ICU 2.4
+ */
+#ifndef UCONFIG_NO_COLLATION
+#   define UCONFIG_NO_COLLATION 0
+#endif
+
+/**
+ * \def UCONFIG_NO_FORMATTING
+ * This switch turns off formatting and calendar/timezone services.
+ *
+ * @stable ICU 2.4
+ */
+#ifndef UCONFIG_NO_FORMATTING
+#   define UCONFIG_NO_FORMATTING 0
+#endif
+
+/**
+ * \def UCONFIG_NO_TRANSLITERATION
+ * This switch turns off transliteration.
+ *
+ * @stable ICU 2.4
+ */
+#ifndef UCONFIG_NO_TRANSLITERATION
+#   define UCONFIG_NO_TRANSLITERATION 0
+#endif
+
+/**
+ * \def UCONFIG_NO_REGULAR_EXPRESSIONS
+ * This switch turns off regular expressions.
+ *
+ * @stable ICU 2.4
+ */
+#ifndef UCONFIG_NO_REGULAR_EXPRESSIONS
+#   define UCONFIG_NO_REGULAR_EXPRESSIONS 0
+#endif
+
+/**
+ * \def UCONFIG_NO_SERVICE
+ * This switch turns off service registration.
+ *
+ * @stable ICU 3.2
+ */
+#ifndef UCONFIG_NO_SERVICE
+#   define UCONFIG_NO_SERVICE 1
+#endif
+
+#endif

http://git-wip-us.apache.org/repos/asf/couchdb-couch-collate/blob/32ffa429/platform/osx/icu/unicode/ucsdet.h
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diff --git a/platform/osx/icu/unicode/ucsdet.h b/platform/osx/icu/unicode/ucsdet.h
new file mode 100644
index 0000000..31f622c
--- /dev/null
+++ b/platform/osx/icu/unicode/ucsdet.h
@@ -0,0 +1,349 @@
+/*
+ **********************************************************************
+ *   Copyright (C) 2005-2007, International Business Machines
+ *   Corporation and others.  All Rights Reserved.
+ **********************************************************************
+ *   file name:  ucsdet.h
+ *   encoding:   US-ASCII
+ *   indentation:4
+ *
+ *   created on: 2005Aug04
+ *   created by: Andy Heninger
+ *
+ *   ICU Character Set Detection, API for C
+ *
+ *   Draft version 18 Oct 2005
+ *
+ */
+
+#ifndef __UCSDET_H
+#define __UCSDET_H
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_CONVERSION
+#include "unicode/uenum.h"
+
+/**
+ * \file 
+ * \brief C API: Charset Detection API
+ *
+ * This API provides a facility for detecting the
+ * charset or encoding of character data in an unknown text format.
+ * The input data can be from an array of bytes.
+ * <p>
+ * Character set detection is at best an imprecise operation.  The detection
+ * process will attempt to identify the charset that best matches the characteristics
+ * of the byte data, but the process is partly statistical in nature, and
+ * the results can not be guaranteed to always be correct.
+ * <p>
+ * For best accuracy in charset detection, the input data should be primarily
+ * in a single language, and a minimum of a few hundred bytes worth of plain text
+ * in the language are needed.  The detection process will attempt to
+ * ignore html or xml style markup that could otherwise obscure the content.
+ */
+ 
+
+struct UCharsetDetector;
+/**
+  * Structure representing a charset detector
+  * @stable ICU 3.6
+  */
+typedef struct UCharsetDetector UCharsetDetector;
+
+struct UCharsetMatch;
+/**
+  *  Opaque structure representing a match that was identified
+  *  from a charset detection operation.
+  *  @stable ICU 3.6
+  */
+typedef struct UCharsetMatch UCharsetMatch;
+
+/**
+  *  Open a charset detector.
+  *
+  *  @param status Any error conditions occurring during the open
+  *                operation are reported back in this variable.
+  *  @return the newly opened charset detector.
+  *  @stable ICU 3.6
+  */
+U_STABLE UCharsetDetector * U_EXPORT2
+ucsdet_open(UErrorCode   *status);
+
+/**
+  * Close a charset detector.  All storage and any other resources
+  *   owned by this charset detector will be released.  Failure to
+  *   close a charset detector when finished with it can result in
+  *   memory leaks in the application.
+  *
+  *  @param ucsd  The charset detector to be closed.
+  *  @stable ICU 3.6
+  */
+U_STABLE void U_EXPORT2
+ucsdet_close(UCharsetDetector *ucsd);
+
+/**
+  * Set the input byte data whose charset is to detected.
+  *
+  * Ownership of the input  text byte array remains with the caller.
+  * The input string must not be altered or deleted until the charset
+  * detector is either closed or reset to refer to different input text.
+  *
+  * @param ucsd   the charset detector to be used.
+  * @param textIn the input text of unknown encoding.   .
+  * @param len    the length of the input text, or -1 if the text
+  *               is NUL terminated.
+  * @param status any error conditions are reported back in this variable.
+  *
+  * @stable ICU 3.6
+  */
+U_STABLE void U_EXPORT2
+ucsdet_setText(UCharsetDetector *ucsd, const char *textIn, int32_t len, UErrorCode *status);
+
+
+/** Set the declared encoding for charset detection.
+ *  The declared encoding of an input text is an encoding obtained
+ *  by the user from an http header or xml declaration or similar source that
+ *  can be provided as an additional hint to the charset detector.
+ *
+ *  How and whether the declared encoding will be used during the
+ *  detection process is TBD.
+ *
+ * @param ucsd      the charset detector to be used.
+ * @param encoding  an encoding for the current data obtained from
+ *                  a header or declaration or other source outside
+ *                  of the byte data itself.
+ * @param length    the length of the encoding name, or -1 if the name string
+ *                  is NUL terminated.
+ * @param status    any error conditions are reported back in this variable.
+ *
+ * @stable ICU 3.6
+ */
+U_STABLE void U_EXPORT2
+ucsdet_setDeclaredEncoding(UCharsetDetector *ucsd, const char *encoding, int32_t length, UErrorCode *status);
+
+
+/**
+ * Return the charset that best matches the supplied input data.
+ * 
+ * Note though, that because the detection 
+ * only looks at the start of the input data,
+ * there is a possibility that the returned charset will fail to handle
+ * the full set of input data.
+ * <p>
+ * The returned UCharsetMatch object is owned by the UCharsetDetector.
+ * It will remain valid until the detector input is reset, or until
+ * the detector is closed.
+ * <p>
+ * The function will fail if
+ *  <ul>
+ *    <li>no charset appears to match the data.</li>
+ *    <li>no input text has been provided</li>
+ *  </ul>
+ *
+ * @param ucsd      the charset detector to be used.
+ * @param status    any error conditions are reported back in this variable.
+ * @return          a UCharsetMatch  representing the best matching charset,
+ *                  or NULL if no charset matches the byte data.
+ *
+ * @stable ICU 3.6
+ */
+U_STABLE const UCharsetMatch * U_EXPORT2
+ucsdet_detect(UCharsetDetector *ucsd, UErrorCode *status);
+    
+
+/**
+ *  Find all charset matches that appear to be consistent with the input,
+ *  returning an array of results.  The results are ordered with the
+ *  best quality match first.
+ *
+ *  Because the detection only looks at a limited amount of the
+ *  input byte data, some of the returned charsets may fail to handle
+ *  the all of input data.
+ *  <p>
+ *  The returned UCharsetMatch objects are owned by the UCharsetDetector.
+ *  They will remain valid until the detector is closed or modified
+ *  
+ * <p>
+ * Return an error if 
+ *  <ul>
+ *    <li>no charsets appear to match the input data.</li>
+ *    <li>no input text has been provided</li>
+ *  </ul>
+ * 
+ * @param ucsd          the charset detector to be used.
+ * @param matchesFound  pointer to a variable that will be set to the
+ *                      number of charsets identified that are consistent with
+ *                      the input data.  Output only.
+ * @param status        any error conditions are reported back in this variable.
+ * @return              A pointer to an array of pointers to UCharSetMatch objects.
+ *                      This array, and the UCharSetMatch instances to which it refers,
+ *                      are owned by the UCharsetDetector, and will remain valid until
+ *                      the detector is closed or modified.
+ * @stable ICU 3.6
+ */
+U_STABLE const UCharsetMatch ** U_EXPORT2
+ucsdet_detectAll(UCharsetDetector *ucsd, int32_t *matchesFound, UErrorCode *status);
+
+
+
+/**
+ *  Get the name of the charset represented by a UCharsetMatch.
+ *
+ *  The storage for the returned name string is owned by the
+ *  UCharsetMatch, and will remain valid while the UCharsetMatch
+ *  is valid.
+ *
+ *  The name returned is suitable for use with the ICU conversion APIs.
+ *
+ *  @param ucsm    The charset match object.
+ *  @param status  Any error conditions are reported back in this variable.
+ *  @return        The name of the matching charset.
+ *
+ *  @stable ICU 3.6
+ */
+U_STABLE const char * U_EXPORT2
+ucsdet_getName(const UCharsetMatch *ucsm, UErrorCode *status);
+
+/**
+ *  Get a confidence number for the quality of the match of the byte
+ *  data with the charset.  Confidence numbers range from zero to 100,
+ *  with 100 representing complete confidence and zero representing
+ *  no confidence.
+ *
+ *  The confidence values are somewhat arbitrary.  They define an
+ *  an ordering within the results for any single detection operation
+ *  but are not generally comparable between the results for different input.
+ *
+ *  A confidence value of ten does have a general meaning - it is used
+ *  for charsets that can represent the input data, but for which there
+ *  is no other indication that suggests that the charset is the correct one.
+ *  Pure 7 bit ASCII data, for example, is compatible with a
+ *  great many charsets, most of which will appear as possible matches
+ *  with a confidence of 10.
+ *
+ *  @param ucsm    The charset match object.
+ *  @param status  Any error conditions are reported back in this variable.
+ *  @return        A confidence number for the charset match.
+ *
+ *  @stable ICU 3.6
+ */
+U_STABLE int32_t U_EXPORT2
+ucsdet_getConfidence(const UCharsetMatch *ucsm, UErrorCode *status);
+
+/**
+ *  Get the RFC 3066 code for the language of the input data.
+ *
+ *  The Charset Detection service is intended primarily for detecting
+ *  charsets, not language.  For some, but not all, charsets, a language is
+ *  identified as a byproduct of the detection process, and that is what
+ *  is returned by this function.
+ *
+ *  CAUTION:
+ *    1.  Language information is not available for input data encoded in
+ *        all charsets. In particular, no language is identified
+ *        for UTF-8 input data.
+ *
+ *    2.  Closely related languages may sometimes be confused.
+ *
+ *  If more accurate language detection is required, a linguistic
+ *  analysis package should be used.
+ *
+ *  The storage for the returned name string is owned by the
+ *  UCharsetMatch, and will remain valid while the UCharsetMatch
+ *  is valid.
+ *
+ *  @param ucsm    The charset match object.
+ *  @param status  Any error conditions are reported back in this variable.
+ *  @return        The RFC 3066 code for the language of the input data, or
+ *                 an empty string if the language could not be determined.
+ *
+ *  @stable ICU 3.6
+ */
+U_STABLE const char * U_EXPORT2
+ucsdet_getLanguage(const UCharsetMatch *ucsm, UErrorCode *status);
+
+
+/**
+  *  Get the entire input text as a UChar string, placing it into
+  *  a caller-supplied buffer.  A terminating
+  *  NUL character will be appended to the buffer if space is available.
+  *
+  *  The number of UChars in the output string, not including the terminating
+  *  NUL, is returned. 
+  *
+  *  If the supplied buffer is smaller than required to hold the output,
+  *  the contents of the buffer are undefined.  The full output string length
+  *  (in UChars) is returned as always, and can be used to allocate a buffer
+  *  of the correct size.
+  *
+  *
+  * @param ucsm    The charset match object.
+  * @param buf     A UChar buffer to be filled with the converted text data.
+  * @param cap     The capacity of the buffer in UChars.
+  * @param status  Any error conditions are reported back in this variable.
+  * @return        The number of UChars in the output string.
+  *
+  * @stable ICU 3.6
+  */
+U_STABLE  int32_t U_EXPORT2
+ucsdet_getUChars(const UCharsetMatch *ucsm,
+                 UChar *buf, int32_t cap, UErrorCode *status);
+
+
+
+/**
+  *  Get an iterator over the set of all detectable charsets - 
+  *  over the charsets that are known to the charset detection
+  *  service.
+  *
+  *  The returned UEnumeration provides access to the names of
+  *  the charsets.
+  *
+  *  The state of the Charset detector that is passed in does not
+  *  affect the result of this function, but requiring a valid, open
+  *  charset detector as a parameter insures that the charset detection
+  *  service has been safely initialized and that the required detection
+  *  data is available.
+  *
+  *  @param ucsd a Charset detector.
+  *  @param status  Any error conditions are reported back in this variable.
+  *  @return an iterator providing access to the detectable charset names.
+  *  @stable ICU 3.6
+  */
+U_STABLE  UEnumeration * U_EXPORT2
+ucsdet_getAllDetectableCharsets(const UCharsetDetector *ucsd,  UErrorCode *status);
+
+
+/**
+  *  Test whether input filtering is enabled for this charset detector.
+  *  Input filtering removes text that appears to be HTML or xml
+  *  markup from the input before applying the code page detection
+  *  heuristics.
+  *
+  *  @param ucsd  The charset detector to check.
+  *  @return TRUE if filtering is enabled.
+  *  @stable ICU 3.6
+  */
+U_STABLE  UBool U_EXPORT2
+ucsdet_isInputFilterEnabled(const UCharsetDetector *ucsd);
+
+
+/**
+ * Enable filtering of input text. If filtering is enabled,
+ * text within angle brackets ("<" and ">") will be removed
+ * before detection, which will remove most HTML or xml markup.
+ *
+ * @param ucsd   the charset detector to be modified.
+ * @param filter <code>true</code> to enable input text filtering.
+ * @return The previous setting.
+ *
+ * @stable ICU 3.6
+ */
+U_STABLE  UBool U_EXPORT2
+ucsdet_enableInputFilter(UCharsetDetector *ucsd, UBool filter);
+
+#endif
+#endif   /* __UCSDET_H */
+
+

http://git-wip-us.apache.org/repos/asf/couchdb-couch-collate/blob/32ffa429/platform/osx/icu/unicode/ucurr.h
----------------------------------------------------------------------
diff --git a/platform/osx/icu/unicode/ucurr.h b/platform/osx/icu/unicode/ucurr.h
new file mode 100644
index 0000000..c6b3713
--- /dev/null
+++ b/platform/osx/icu/unicode/ucurr.h
@@ -0,0 +1,270 @@
+/*
+**********************************************************************
+* Copyright (c) 2002-2008, International Business Machines
+* Corporation and others.  All Rights Reserved.
+**********************************************************************
+*/
+#ifndef _UCURR_H_
+#define _UCURR_H_
+
+#include "unicode/utypes.h"
+#include "unicode/uenum.h"
+
+/**
+ * \file 
+ * \brief C API: Encapsulates information about a currency.
+ */
+
+#if !UCONFIG_NO_FORMATTING
+
+/**
+ * The ucurr API encapsulates information about a currency, as defined by
+ * ISO 4217.  A currency is represented by a 3-character string
+ * containing its ISO 4217 code.  This API can return various data
+ * necessary the proper display of a currency:
+ *
+ * <ul><li>A display symbol, for a specific locale
+ * <li>The number of fraction digits to display
+ * <li>A rounding increment
+ * </ul>
+ *
+ * The <tt>DecimalFormat</tt> class uses these data to display
+ * currencies.
+ * @author Alan Liu
+ * @since ICU 2.2
+ */
+
+/**
+ * Finds a currency code for the given locale.
+ * @param locale the locale for which to retrieve a currency code. 
+ *               Currency can be specified by the "currency" keyword
+ *               in which case it overrides the default currency code
+ * @param buff   fill in buffer. Can be NULL for preflighting.
+ * @param buffCapacity capacity of the fill in buffer. Can be 0 for
+ *               preflighting. If it is non-zero, the buff parameter
+ *               must not be NULL.
+ * @param ec error code
+ * @return length of the currency string. It should always be 3. If 0,
+ *                currency couldn't be found or the input values are 
+ *                invalid. 
+ * @stable ICU 2.8
+ */
+U_STABLE int32_t U_EXPORT2
+ucurr_forLocale(const char* locale,
+                UChar* buff,
+                int32_t buffCapacity,
+                UErrorCode* ec);
+
+/**
+ * Selector constants for ucurr_getName().
+ *
+ * @see ucurr_getName
+ * @stable ICU 2.6
+ */
+typedef enum UCurrNameStyle {
+    /**
+     * Selector for ucurr_getName indicating a symbolic name for a
+     * currency, such as "$" for USD.
+     * @stable ICU 2.6
+     */
+    UCURR_SYMBOL_NAME,
+
+    /**
+     * Selector for ucurr_getName indicating the long name for a
+     * currency, such as "US Dollar" for USD.
+     * @stable ICU 2.6
+     */
+    UCURR_LONG_NAME
+} UCurrNameStyle;
+
+#if !UCONFIG_NO_SERVICE
+/**
+ * @stable ICU 2.6
+ */
+typedef const void* UCurrRegistryKey;
+
+/**
+ * Register an (existing) ISO 4217 currency code for the given locale.
+ * Only the country code and the two variants EURO and PRE_EURO are
+ * recognized.
+ * @param isoCode the three-letter ISO 4217 currency code
+ * @param locale  the locale for which to register this currency code
+ * @param status the in/out status code
+ * @return a registry key that can be used to unregister this currency code, or NULL
+ * if there was an error.
+ * @stable ICU 2.6
+ */
+U_STABLE UCurrRegistryKey U_EXPORT2
+ucurr_register(const UChar* isoCode, 
+                   const char* locale,  
+                   UErrorCode* status);
+/**
+ * Unregister the previously-registered currency definitions using the
+ * URegistryKey returned from ucurr_register.  Key becomes invalid after
+ * a successful call and should not be used again.  Any currency 
+ * that might have been hidden by the original ucurr_register call is 
+ * restored.
+ * @param key the registry key returned by a previous call to ucurr_register
+ * @param status the in/out status code, no special meanings are assigned
+ * @return TRUE if the currency for this key was successfully unregistered
+ * @stable ICU 2.6
+ */
+U_STABLE UBool U_EXPORT2
+ucurr_unregister(UCurrRegistryKey key, UErrorCode* status);
+#endif /* UCONFIG_NO_SERVICE */
+
+/**
+ * Returns the display name for the given currency in the
+ * given locale.  For example, the display name for the USD
+ * currency object in the en_US locale is "$".
+ * @param currency null-terminated 3-letter ISO 4217 code
+ * @param locale locale in which to display currency
+ * @param nameStyle selector for which kind of name to return
+ * @param isChoiceFormat fill-in set to TRUE if the returned value
+ * is a ChoiceFormat pattern; otherwise it is a static string
+ * @param len fill-in parameter to receive length of result
+ * @param ec error code
+ * @return pointer to display string of 'len' UChars.  If the resource
+ * data contains no entry for 'currency', then 'currency' itself is
+ * returned.  If *isChoiceFormat is TRUE, then the result is a
+ * ChoiceFormat pattern.  Otherwise it is a static string.
+ * @stable ICU 2.6
+ */
+U_STABLE const UChar* U_EXPORT2
+ucurr_getName(const UChar* currency,
+              const char* locale,
+              UCurrNameStyle nameStyle,
+              UBool* isChoiceFormat,
+              int32_t* len,
+              UErrorCode* ec);
+
+/**
+ * Returns the number of the number of fraction digits that should
+ * be displayed for the given currency.
+ * @param currency null-terminated 3-letter ISO 4217 code
+ * @param ec input-output error code
+ * @return a non-negative number of fraction digits to be
+ * displayed, or 0 if there is an error
+ * @stable ICU 3.0
+ */
+U_STABLE int32_t U_EXPORT2
+ucurr_getDefaultFractionDigits(const UChar* currency,
+                               UErrorCode* ec);
+
+/**
+ * Returns the rounding increment for the given currency, or 0.0 if no
+ * rounding is done by the currency.
+ * @param currency null-terminated 3-letter ISO 4217 code
+ * @param ec input-output error code
+ * @return the non-negative rounding increment, or 0.0 if none,
+ * or 0.0 if there is an error
+ * @stable ICU 3.0
+ */
+U_STABLE double U_EXPORT2
+ucurr_getRoundingIncrement(const UChar* currency,
+                           UErrorCode* ec);
+
+/**
+ * Selector constants for ucurr_openCurrencies().
+ *
+ * @see ucurr_openCurrencies
+ * @stable ICU 3.2
+ */
+typedef enum UCurrCurrencyType {
+    /**
+     * Select all ISO-4217 currency codes.
+     * @stable ICU 3.2
+     */
+    UCURR_ALL = INT32_MAX,
+    /**
+     * Select only ISO-4217 commonly used currency codes.
+     * These currencies can be found in common use, and they usually have
+     * bank notes or coins associated with the currency code.
+     * This does not include fund codes, precious metals and other
+     * various ISO-4217 codes limited to special financial products.
+     * @stable ICU 3.2
+     */
+    UCURR_COMMON = 1,
+    /**
+     * Select ISO-4217 uncommon currency codes.
+     * These codes respresent fund codes, precious metals and other
+     * various ISO-4217 codes limited to special financial products.
+     * A fund code is a monetary resource associated with a currency.
+     * @stable ICU 3.2
+     */
+    UCURR_UNCOMMON = 2,
+    /**
+     * Select only deprecated ISO-4217 codes.
+     * These codes are no longer in general public use.
+     * @stable ICU 3.2
+     */
+    UCURR_DEPRECATED = 4,
+    /**
+     * Select only non-deprecated ISO-4217 codes.
+     * These codes are in general public use.
+     * @stable ICU 3.2
+     */
+    UCURR_NON_DEPRECATED = 8
+} UCurrCurrencyType;
+
+/**
+ * Provides a UEnumeration object for listing ISO-4217 codes.
+ * @param currType You can use one of several UCurrCurrencyType values for this
+ *      variable. You can also | (or) them together to get a specific list of
+ *      currencies. Most people will want to use the (UCURR_CURRENCY|UCURR_NON_DEPRECATED) value to
+ *      get a list of current currencies.
+ * @param pErrorCode Error code
+ * @stable ICU 3.2
+ */
+U_STABLE UEnumeration * U_EXPORT2
+ucurr_openISOCurrencies(uint32_t currType, UErrorCode *pErrorCode);
+
+/** 
+ * Finds the number of valid currency codes for the
+ * given locale and date.
+ * @param locale the locale for which to retrieve the
+ *               currency count.
+ * @param date   the date for which to retrieve the
+ *               currency count for the given locale.
+ * @param ec     error code
+ * @return       the number of currency codes for the
+ *               given locale and date.  If 0, currency
+ *               codes couldn't be found for the input
+ *               values are invalid.
+ * @draft ICU 4.0
+ */
+U_DRAFT int32_t U_EXPORT2
+ucurr_countCurrencies(const char* locale, 
+                 UDate date, 
+                 UErrorCode* ec); 
+
+/** 
+ * Finds a currency code for the given locale and date 
+ * @param locale the locale for which to retrieve a currency code.  
+ *               Currency can be specified by the "currency" keyword 
+ *               in which case it overrides the default currency code 
+ * @param date   the date for which to retrieve a currency code for 
+ *               the given locale. 
+ * @param index  the index within the available list of currency codes
+ *               for the given locale on the given date.
+ * @param buff   fill in buffer. Can be NULL for preflighting. 
+ * @param buffCapacity capacity of the fill in buffer. Can be 0 for 
+ *               preflighting. If it is non-zero, the buff parameter 
+ *               must not be NULL. 
+ * @param ec     error code 
+ * @return       length of the currency string. It should always be 3. 
+ *               If 0, currency couldn't be found or the input values are  
+ *               invalid.  
+ * @draft ICU 4.0 
+ */ 
+U_DRAFT int32_t U_EXPORT2 
+ucurr_forLocaleAndDate(const char* locale, 
+                UDate date, 
+                int32_t index,
+                UChar* buff, 
+                int32_t buffCapacity, 
+                UErrorCode* ec); 
+
+#endif /* #if !UCONFIG_NO_FORMATTING */
+
+#endif

http://git-wip-us.apache.org/repos/asf/couchdb-couch-collate/blob/32ffa429/platform/osx/icu/unicode/udat.h
----------------------------------------------------------------------
diff --git a/platform/osx/icu/unicode/udat.h b/platform/osx/icu/unicode/udat.h
new file mode 100644
index 0000000..e4b43a4
--- /dev/null
+++ b/platform/osx/icu/unicode/udat.h
@@ -0,0 +1,962 @@
+/*
+ *******************************************************************************
+ * Copyright (C) 1996-2009, International Business Machines
+ * Corporation and others. All Rights Reserved.
+ *******************************************************************************
+*/
+
+#ifndef UDAT_H
+#define UDAT_H
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_FORMATTING
+
+#include "unicode/ucal.h"
+#include "unicode/unum.h"
+/**
+ * \file
+ * \brief C API: DateFormat
+ *
+ * <h2> Date Format C API</h2>
+ *
+ * Date Format C API  consists of functions that convert dates and
+ * times from their internal representations to textual form and back again in a
+ * language-independent manner. Converting from the internal representation (milliseconds
+ * since midnight, January 1, 1970) to text is known as "formatting," and converting
+ * from text to millis is known as "parsing."  We currently define only one concrete
+ * structure UDateFormat, which can handle pretty much all normal
+ * date formatting and parsing actions.
+ * <P>
+ * Date Format helps you to format and parse dates for any locale. Your code can
+ * be completely independent of the locale conventions for months, days of the
+ * week, or even the calendar format: lunar vs. solar.
+ * <P>
+ * To format a date for the current Locale with default time and date style,
+ * use one of the static factory methods:
+ * <pre>
+ * \code
+ *  UErrorCode status = U_ZERO_ERROR;
+ *  UChar *myString;
+ *  int32_t myStrlen = 0;
+ *  UDateFormat* dfmt = udat_open(UDAT_DEFAULT, UDAT_DEFAULT, NULL, NULL, -1, NULL, -1, &status);
+ *  myStrlen = udat_format(dfmt, myDate, NULL, myStrlen, NULL, &status);
+ *  if (status==U_BUFFER_OVERFLOW_ERROR){
+ *      status=U_ZERO_ERROR;
+ *      myString=(UChar*)malloc(sizeof(UChar) * (myStrlen+1) );
+ *      udat_format(dfmt, myDate, myString, myStrlen+1, NULL, &status);
+ *  }
+ * \endcode
+ * </pre>
+ * If you are formatting multiple numbers, it is more efficient to get the
+ * format and use it multiple times so that the system doesn't have to fetch the
+ * information about the local language and country conventions multiple times.
+ * <pre>
+ * \code
+ *  UErrorCode status = U_ZERO_ERROR;
+ *  int32_t i, myStrlen = 0;
+ *  UChar* myString;
+ *  char buffer[1024];
+ *  UDate myDateArr[] = { 0.0, 100000000.0, 2000000000.0 }; // test values
+ *  UDateFormat* df = udat_open(UDAT_DEFAULT, UDAT_DEFAULT, NULL, NULL, -1, NULL, 0, &status);
+ *  for (i = 0; i < 3; i++) {
+ *      myStrlen = udat_format(df, myDateArr[i], NULL, myStrlen, NULL, &status);
+ *      if(status == U_BUFFER_OVERFLOW_ERROR){
+ *          status = U_ZERO_ERROR;
+ *          myString = (UChar*)malloc(sizeof(UChar) * (myStrlen+1) );
+ *          udat_format(df, myDateArr[i], myString, myStrlen+1, NULL, &status);
+ *          printf("%s\n", u_austrcpy(buffer, myString) );
+ *          free(myString);
+ *      }
+ *  }
+ * \endcode
+ * </pre>
+ * To get specific fields of a date, you can use UFieldPosition to
+ * get specific fields.
+ * <pre>
+ * \code
+ *  UErrorCode status = U_ZERO_ERROR;
+ *  UFieldPosition pos;
+ *  UChar *myString;
+ *  int32_t myStrlen = 0;
+ *  char buffer[1024];
+ *
+ *  pos.field = 1;  // Same as the DateFormat::EField enum
+ *  UDateFormat* dfmt = udat_open(UDAT_DEFAULT, UDAT_DEFAULT, NULL, -1, NULL, 0, &status);
+ *  myStrlen = udat_format(dfmt, myDate, NULL, myStrlen, &pos, &status);
+ *  if (status==U_BUFFER_OVERFLOW_ERROR){
+ *      status=U_ZERO_ERROR;
+ *      myString=(UChar*)malloc(sizeof(UChar) * (myStrlen+1) );
+ *      udat_format(dfmt, myDate, myString, myStrlen+1, &pos, &status);
+ *  }
+ *  printf("date format: %s\n", u_austrcpy(buffer, myString));
+ *  buffer[pos.endIndex] = 0;   // NULL terminate the string.
+ *  printf("UFieldPosition position equals %s\n", &buffer[pos.beginIndex]);
+ * \endcode
+ * </pre>
+ * To format a date for a different Locale, specify it in the call to
+ * udat_open()
+ * <pre>
+ * \code
+ *        UDateFormat* df = udat_open(UDAT_SHORT, UDAT_SHORT, "fr_FR", NULL, -1, NULL, 0, &status);
+ * \endcode
+ * </pre>
+ * You can use a DateFormat API udat_parse() to parse.
+ * <pre>
+ * \code
+ *  UErrorCode status = U_ZERO_ERROR;
+ *  int32_t parsepos=0;
+ *  UDate myDate = udat_parse(df, myString, u_strlen(myString), &parsepos, &status);
+ * \endcode
+ * </pre>
+ *  You can pass in different options for the arguments for date and time style
+ *  to control the length of the result; from SHORT to MEDIUM to LONG to FULL.
+ *  The exact result depends on the locale, but generally:
+ *  see UDateFormatStyle for more details
+ * <ul type=round>
+ *   <li>   UDAT_SHORT is completely numeric, such as 12/13/52 or 3:30pm
+ *   <li>   UDAT_MEDIUM is longer, such as Jan 12, 1952
+ *   <li>   UDAT_LONG is longer, such as January 12, 1952 or 3:30:32pm
+ *   <li>   UDAT_FULL is pretty completely specified, such as
+ *          Tuesday, April 12, 1952 AD or 3:30:42pm PST.
+ * </ul>
+ * You can also set the time zone on the format if you wish.
+ * <P>
+ * You can also use forms of the parse and format methods with Parse Position and
+ * UFieldPosition to allow you to
+ * <ul type=round>
+ *   <li>   Progressively parse through pieces of a string.
+ *   <li>   Align any particular field, or find out where it is for selection
+ *          on the screen.
+ * </ul>
+ */
+
+/** A date formatter.
+ *  For usage in C programs.
+ *  @stable ICU 2.6
+ */
+typedef void* UDateFormat;
+
+/** The possible date/time format styles 
+ *  @stable ICU 2.6
+ */
+typedef enum UDateFormatStyle {
+    /** Full style */
+    UDAT_FULL,
+    /** Long style */
+    UDAT_LONG,
+    /** Medium style */
+    UDAT_MEDIUM,
+    /** Short style */
+    UDAT_SHORT,
+    /** Default style */
+    UDAT_DEFAULT = UDAT_MEDIUM,
+
+    /** Bitfield for relative date */
+    UDAT_RELATIVE = (1 << 7),
+    
+    UDAT_FULL_RELATIVE = UDAT_FULL | UDAT_RELATIVE,
+        
+    UDAT_LONG_RELATIVE = UDAT_LONG | UDAT_RELATIVE,
+    
+    UDAT_MEDIUM_RELATIVE = UDAT_MEDIUM | UDAT_RELATIVE,
+    
+    UDAT_SHORT_RELATIVE = UDAT_SHORT | UDAT_RELATIVE,
+    
+    
+    /** No style */
+    UDAT_NONE = -1,
+    /** for internal API use only */
+    UDAT_IGNORE = -2
+
+} UDateFormatStyle;
+
+
+/**
+ * @{
+ * Below are a set of pre-defined skeletons.
+ *
+ * <P>
+ * A skeleton 
+ * <ol>
+ * <li>
+ *    only keeps the field pattern letter and ignores all other parts 
+ *    in a pattern, such as space, punctuations, and string literals.
+ * </li>
+ * <li>
+ *    hides the order of fields. 
+ * </li>
+ * <li>
+ *    might hide a field's pattern letter length.
+ *
+ *    For those non-digit calendar fields, the pattern letter length is 
+ *    important, such as MMM, MMMM, and MMMMM; EEE and EEEE, 
+ *    and the field's pattern letter length is honored.
+ *    
+ *    For the digit calendar fields,  such as M or MM, d or dd, yy or yyyy, 
+ *    the field pattern length is ignored and the best match, which is defined 
+ *    in date time patterns, will be returned without honor the field pattern
+ *    letter length in skeleton.
+ * </li>
+ * </ol>
+ *
+ * @stable ICU 4.0
+ */
+
+#define UDAT_MINUTE_SECOND              "ms"
+#define UDAT_HOUR24_MINUTE              "Hm"
+#define UDAT_HOUR24_MINUTE_SECOND       "Hms"      
+#define UDAT_HOUR_MINUTE_SECOND         "hms"
+#define UDAT_STANDALONE_MONTH           "LLLL"
+#define UDAT_ABBR_STANDALONE_MONTH      "LLL"
+#define UDAT_YEAR_QUARTER               "yQQQ"
+#define UDAT_YEAR_ABBR_QUARTER          "yQ"
+
+/** @} */
+
+/**
+ * @{
+ * Below are a set of pre-defined skeletons that 
+ * have pre-defined interval patterns in resource files.
+ * Users are encouraged to use them in date interval format factory methods.
+ *
+ */
+#define UDAT_HOUR_MINUTE                "hm"
+#define UDAT_YEAR                       "y"
+#define UDAT_DAY                        "d"
+#define UDAT_NUM_MONTH_WEEKDAY_DAY      "MEd"
+#define UDAT_YEAR_NUM_MONTH             "yM"              
+#define UDAT_NUM_MONTH_DAY              "Md"
+#define UDAT_YEAR_NUM_MONTH_WEEKDAY_DAY "yMEd"
+#define UDAT_ABBR_MONTH_WEEKDAY_DAY     "MMMEd"
+#define UDAT_YEAR_MONTH                 "yMMMM"
+#define UDAT_YEAR_ABBR_MONTH            "yMMM"
+#define UDAT_MONTH_DAY                  "MMMMd"
+#define UDAT_ABBR_MONTH_DAY             "MMMd" 
+#define UDAT_MONTH_WEEKDAY_DAY          "MMMMEEEEd"
+#define UDAT_YEAR_ABBR_MONTH_WEEKDAY_DAY "yMMMEd" 
+#define UDAT_YEAR_MONTH_WEEKDAY_DAY     "yMMMMEEEEd"
+#define UDAT_YEAR_MONTH_DAY             "yMMMMd"
+#define UDAT_YEAR_ABBR_MONTH_DAY        "yMMMd"
+#define UDAT_YEAR_NUM_MONTH_DAY         "yMd"
+#define UDAT_NUM_MONTH                  "M"
+#define UDAT_ABBR_MONTH                 "MMM"
+#define UDAT_MONTH                      "MMMM"
+#define UDAT_HOUR_MINUTE_GENERIC_TZ     "hmv"
+#define UDAT_HOUR_MINUTE_TZ             "hmz"
+#define UDAT_HOUR                       "h"
+#define UDAT_HOUR_GENERIC_TZ            "hv"
+#define UDAT_HOUR_TZ                    "hz"
+
+/** @} */
+
+
+/**
+ * FieldPosition and UFieldPosition selectors for format fields
+ * defined by DateFormat and UDateFormat.
+ * @stable ICU 3.0
+ */
+typedef enum UDateFormatField {
+    /**
+     * FieldPosition and UFieldPosition selector for 'G' field alignment,
+     * corresponding to the UCAL_ERA field.
+     * @stable ICU 3.0
+     */
+    UDAT_ERA_FIELD = 0,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'y' field alignment,
+     * corresponding to the UCAL_YEAR field.
+     * @stable ICU 3.0
+     */
+    UDAT_YEAR_FIELD = 1,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'M' field alignment,
+     * corresponding to the UCAL_MONTH field.
+     * @stable ICU 3.0
+     */
+    UDAT_MONTH_FIELD = 2,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'd' field alignment,
+     * corresponding to the UCAL_DATE field.
+     * @stable ICU 3.0
+     */
+    UDAT_DATE_FIELD = 3,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'k' field alignment,
+     * corresponding to the UCAL_HOUR_OF_DAY field.
+     * UDAT_HOUR_OF_DAY1_FIELD is used for the one-based 24-hour clock.
+     * For example, 23:59 + 01:00 results in 24:59.
+     * @stable ICU 3.0
+     */
+    UDAT_HOUR_OF_DAY1_FIELD = 4,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'H' field alignment,
+     * corresponding to the UCAL_HOUR_OF_DAY field.
+     * UDAT_HOUR_OF_DAY0_FIELD is used for the zero-based 24-hour clock.
+     * For example, 23:59 + 01:00 results in 00:59.
+     * @stable ICU 3.0
+     */
+    UDAT_HOUR_OF_DAY0_FIELD = 5,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'm' field alignment,
+     * corresponding to the UCAL_MINUTE field.
+     * @stable ICU 3.0
+     */
+    UDAT_MINUTE_FIELD = 6,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 's' field alignment,
+     * corresponding to the UCAL_SECOND field.
+     * @stable ICU 3.0
+     */
+    UDAT_SECOND_FIELD = 7,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'S' field alignment,
+     * corresponding to the UCAL_MILLISECOND field.
+     * @stable ICU 3.0
+     */
+    UDAT_FRACTIONAL_SECOND_FIELD = 8,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'E' field alignment,
+     * corresponding to the UCAL_DAY_OF_WEEK field.
+     * @stable ICU 3.0
+     */
+    UDAT_DAY_OF_WEEK_FIELD = 9,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'D' field alignment,
+     * corresponding to the UCAL_DAY_OF_YEAR field.
+     * @stable ICU 3.0
+     */
+    UDAT_DAY_OF_YEAR_FIELD = 10,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'F' field alignment,
+     * corresponding to the UCAL_DAY_OF_WEEK_IN_MONTH field.
+     * @stable ICU 3.0
+     */
+    UDAT_DAY_OF_WEEK_IN_MONTH_FIELD = 11,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'w' field alignment,
+     * corresponding to the UCAL_WEEK_OF_YEAR field.
+     * @stable ICU 3.0
+     */
+    UDAT_WEEK_OF_YEAR_FIELD = 12,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'W' field alignment,
+     * corresponding to the UCAL_WEEK_OF_MONTH field.
+     * @stable ICU 3.0
+     */
+    UDAT_WEEK_OF_MONTH_FIELD = 13,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'a' field alignment,
+     * corresponding to the UCAL_AM_PM field.
+     * @stable ICU 3.0
+     */
+    UDAT_AM_PM_FIELD = 14,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'h' field alignment,
+     * corresponding to the UCAL_HOUR field.
+     * UDAT_HOUR1_FIELD is used for the one-based 12-hour clock.
+     * For example, 11:30 PM + 1 hour results in 12:30 AM.
+     * @stable ICU 3.0
+     */
+    UDAT_HOUR1_FIELD = 15,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'K' field alignment,
+     * corresponding to the UCAL_HOUR field.
+     * UDAT_HOUR0_FIELD is used for the zero-based 12-hour clock.
+     * For example, 11:30 PM + 1 hour results in 00:30 AM.
+     * @stable ICU 3.0
+     */
+    UDAT_HOUR0_FIELD = 16,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'z' field alignment,
+     * corresponding to the UCAL_ZONE_OFFSET and
+     * UCAL_DST_OFFSET fields.
+     * @stable ICU 3.0
+     */
+    UDAT_TIMEZONE_FIELD = 17,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'Y' field alignment,
+     * corresponding to the UCAL_YEAR_WOY field.
+     * @stable ICU 3.0
+     */
+    UDAT_YEAR_WOY_FIELD = 18,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'e' field alignment,
+     * corresponding to the UCAL_DOW_LOCAL field.
+     * @stable ICU 3.0
+     */
+    UDAT_DOW_LOCAL_FIELD = 19,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'u' field alignment,
+     * corresponding to the UCAL_EXTENDED_YEAR field.
+     * @stable ICU 3.0
+     */
+    UDAT_EXTENDED_YEAR_FIELD = 20,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'g' field alignment,
+     * corresponding to the UCAL_JULIAN_DAY field.
+     * @stable ICU 3.0
+     */
+    UDAT_JULIAN_DAY_FIELD = 21,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'A' field alignment,
+     * corresponding to the UCAL_MILLISECONDS_IN_DAY field.
+     * @stable ICU 3.0
+     */
+    UDAT_MILLISECONDS_IN_DAY_FIELD = 22,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'Z' field alignment,
+     * corresponding to the UCAL_ZONE_OFFSET and
+     * UCAL_DST_OFFSET fields.
+     * @stable ICU 3.0
+     */
+    UDAT_TIMEZONE_RFC_FIELD = 23,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'v' field alignment,
+     * corresponding to the UCAL_ZONE_OFFSET field.
+     * @stable ICU 3.4
+     */
+    UDAT_TIMEZONE_GENERIC_FIELD = 24,
+    /**
+     * FieldPosition selector for 'c' field alignment,
+     * corresponding to the {@link #UCAL_DATE} field. 
+     * This displays the stand alone day name, if available.
+     * @stable ICU 3.4
+     */
+    UDAT_STANDALONE_DAY_FIELD = 25,
+    
+    /**
+     * FieldPosition selector for 'L' field alignment,
+     * corresponding to the {@link #UCAL_MONTH} field.  
+     * This displays the stand alone month name, if available.
+     * @stable ICU 3.4
+     */
+    UDAT_STANDALONE_MONTH_FIELD = 26,
+
+    /**
+     * FieldPosition selector for "Q" field alignment,
+     * corresponding to quarters. This is implemented
+     * using the {@link #UCAL_MONTH} field. This
+     * displays the quarter.
+     * @stable ICU 3.6
+     */
+    UDAT_QUARTER_FIELD = 27,
+
+    /**
+     * FieldPosition selector for the "q" field alignment,
+     * corresponding to stand-alone quarters. This is
+     * implemented using the {@link #UCAL_MONTH} field.
+     * This displays the stand-alone quarter.
+     * @stable ICU 3.6
+     */
+    UDAT_STANDALONE_QUARTER_FIELD = 28,
+
+    /**
+     * FieldPosition and UFieldPosition selector for 'V' field alignment,
+     * corresponding to the UCAL_ZONE_OFFSET field.
+     * @stable ICU 3.8
+     */
+    UDAT_TIMEZONE_SPECIAL_FIELD = 29,
+
+   /**
+     * Number of FieldPosition and UFieldPosition selectors for 
+     * DateFormat and UDateFormat.
+     * Valid selectors range from 0 to UDAT_FIELD_COUNT-1.
+     * This value is subject to change if new fields are defined
+     * in the future.
+     * @stable ICU 3.0
+     */
+    UDAT_FIELD_COUNT = 30
+
+} UDateFormatField;
+
+/**
+ * Open a new UDateFormat for formatting and parsing dates and times.
+ * A UDateFormat may be used to format dates in calls to {@link #udat_format },
+ * and to parse dates in calls to {@link #udat_parse }.
+ * @param timeStyle The style used to format times; one of UDAT_FULL, UDAT_LONG,
+ * UDAT_MEDIUM, UDAT_SHORT, UDAT_DEFAULT, or UDAT_NONE (relative time styles
+ * are not currently supported)
+ * @param dateStyle The style used to format dates; one of UDAT_FULL, UDAT_LONG,
+ * UDAT_MEDIUM, UDAT_SHORT, UDAT_DEFAULT, UDAT_FULL_RELATIVE, UDAT_LONG_RELATIVE,
+ * UDAT_MEDIUM_RELATIVE, UDAT_SHORT_RELATIVE, or UDAT_NONE
+ * @param locale The locale specifying the formatting conventions
+ * @param tzID A timezone ID specifying the timezone to use.  If 0, use
+ * the default timezone.
+ * @param tzIDLength The length of tzID, or -1 if null-terminated.
+ * @param pattern A pattern specifying the format to use.
+ * @param patternLength The number of characters in the pattern, or -1 if null-terminated.
+ * @param status A pointer to an UErrorCode to receive any errors
+ * @return A pointer to a UDateFormat to use for formatting dates and times, or 0 if
+ * an error occurred.
+ * @stable ICU 2.0
+ */
+U_STABLE UDateFormat* U_EXPORT2 
+udat_open(UDateFormatStyle  timeStyle,
+          UDateFormatStyle  dateStyle,
+          const char        *locale,
+          const UChar       *tzID,
+          int32_t           tzIDLength,
+          const UChar       *pattern,
+          int32_t           patternLength,
+          UErrorCode        *status);
+
+
+/**
+* Close a UDateFormat.
+* Once closed, a UDateFormat may no longer be used.
+* @param format The formatter to close.
+* @stable ICU 2.0
+*/
+U_STABLE void U_EXPORT2 
+udat_close(UDateFormat* format);
+
+/**
+ * Open a copy of a UDateFormat.
+ * This function performs a deep copy.
+ * @param fmt The format to copy
+ * @param status A pointer to an UErrorCode to receive any errors.
+ * @return A pointer to a UDateFormat identical to fmt.
+ * @stable ICU 2.0
+ */
+U_STABLE UDateFormat* U_EXPORT2 
+udat_clone(const UDateFormat *fmt,
+       UErrorCode *status);
+
+/**
+* Format a date using an UDateFormat.
+* The date will be formatted using the conventions specified in {@link #udat_open }
+* @param format The formatter to use
+* @param dateToFormat The date to format
+* @param result A pointer to a buffer to receive the formatted number.
+* @param resultLength The maximum size of result.
+* @param position A pointer to a UFieldPosition.  On input, position->field
+* is read.  On output, position->beginIndex and position->endIndex indicate
+* the beginning and ending indices of field number position->field, if such
+* a field exists.  This parameter may be NULL, in which case no field
+* position data is returned.
+* @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_parse
+* @see UFieldPosition
+* @stable ICU 2.0
+*/
+U_STABLE int32_t U_EXPORT2 
+udat_format(    const    UDateFormat*    format,
+                        UDate           dateToFormat,
+                        UChar*          result,
+                        int32_t         resultLength,
+                        UFieldPosition* position,
+                        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 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
+* @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 localeIndex 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 localeIndex);
+
+/**
+* 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 symbolIndex 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                 symbolIndex,
+                        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 symbolIndex 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                 symbolIndex,
+                    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); 
+
+/**
+* Extract the date pattern from a UDateFormat set for relative date formatting.
+* The pattern will follow the pattern syntax rules.
+* @param fmt The formatter to query.
+* @param result A pointer to a buffer to receive the pattern.
+* @param resultLength The maximum size of result.
+* @param status A pointer to a UErrorCode to receive any errors
+* @return The total buffer size needed; if greater than resultLength, the output was truncated.
+* @see udat_applyPatternRelative
+* @internal ICU 4.2 technology preview
+*/
+U_INTERNAL int32_t U_EXPORT2 
+udat_toPatternRelativeDate(const UDateFormat *fmt,
+                           UChar             *result,
+                           int32_t           resultLength,
+                           UErrorCode        *status);
+
+/**
+* Extract the time pattern from a UDateFormat set for relative date formatting.
+* The pattern will follow the pattern syntax rules.
+* @param fmt The formatter to query.
+* @param result A pointer to a buffer to receive the pattern.
+* @param resultLength The maximum size of result.
+* @param status A pointer to a UErrorCode to receive any errors
+* @return The total buffer size needed; if greater than resultLength, the output was truncated.
+* @see udat_applyPatternRelative
+* @internal ICU 4.2 technology preview
+*/
+U_INTERNAL int32_t U_EXPORT2 
+udat_toPatternRelativeTime(const UDateFormat *fmt,
+                           UChar             *result,
+                           int32_t           resultLength,
+                           UErrorCode        *status);
+
+/**
+* Set the date & time patterns used by a UDateFormat set for relative date formatting.
+* The patterns should follow the pattern syntax rules.
+* @param format The formatter to set.
+* @param datePattern The new date pattern
+* @param datePatternLength The length of datePattern, or -1 if null-terminated.
+* @param timePattern The new time pattern
+* @param timePatternLength The length of timePattern, or -1 if null-terminated.
+* @param status A pointer to a UErrorCode to receive any errors
+* @see udat_toPatternRelativeDate, udat_toPatternRelativeTime
+* @internal ICU 4.2 technology preview
+*/
+U_INTERNAL void U_EXPORT2 
+udat_applyPatternRelative(UDateFormat *format,
+                          const UChar *datePattern,
+                          int32_t     datePatternLength,
+                          const UChar *timePattern,
+                          int32_t     timePatternLength,
+                          UErrorCode  *status);
+
+#endif /* #if !UCONFIG_NO_FORMATTING */
+
+#endif