+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
-* Copyright (C) 2001-2004, International Business Machines
+* Copyright (C) 2001-2014, International Business Machines
* Corporation and others. All Rights Reserved.
*******************************************************************************
*
-* File ucoleitr.cpp
+* File ucoleitr.h
*
* Modification History:
*
*/
#define UCOL_NULLORDER ((int32_t)0xFFFFFFFF)
+#ifndef U_HIDE_INTERNAL_API
+/**
+ * DO NOT USE, INTERNAL CONSTANT THAT WAS REMOVED AND THEN
+ * TEMPORARILY RESTORED TO PREVENT THE BUILD FROM BREAKING.
+ * 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)
+#endif /* U_HIDE_INTERNAL_API */
+
#include "unicode/ucol.h"
/**
* 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:
+ * For example, consider the following in Slovak and in traditional Spanish collation:
* <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,
+ * And in German phonebook collation,
* <pre>
* . "<ae ligature>b"-> the first key is key('a'), the second key is key('e'), and
* . the third key is key('b').
* 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.
+ * collation orders with the value 0 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>.
+ * type of the collation order is <strong>int32_t</strong>.
*
* @see UCollator
*/
* @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.
+ * @param status A pointer to a UErrorCode to receive any errors.
* @return a struct containing collation element information
* @stable ICU 2.0
*/
int32_t textLength,
UErrorCode *status);
+
/**
* get a hash code for a key... Not very useful!
* @param key the given key.
* 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
+ * @param status A pointer to a UErrorCode to receive any errors.
+ * @return The next collation elements ordering, otherwise returns UCOL_NULLORDER
* if an error has occured or if the end of string has been reached
* @stable ICU 2.0
*/
* 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
+ * @param status A pointer to a 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
+ * UCOL_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);
+#ifndef U_HIDE_INTERNAL_API
+/**
+ * DO NOT USE, INTERNAL FUNCTION THAT WAS REMOVED AND THEN
+ * TEMPORARILY RESTORED TO PREVENT THE BUILD FROM BREAKING.
+ * 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);
+
+/**
+ * DO NOT USE, INTERNAL FUNCTION THAT WAS REMOVED AND THEN
+ * TEMPORARILY RESTORED TO PREVENT THE BUILD FROM BREAKING.
+ * 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);
+#endif /* U_HIDE_INTERNAL_API */
+
/**
* Get the maximum length of any expansion sequences that end with the
* specified comparison order.
* @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.
+ * @param status A pointer to a UErrorCode to receive any errors.
* @see ucol_getText
* @stable ICU 2.0
*/
* 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.
+ * @param status A pointer to a UErrorCode to receive any errors.
* @see ucol_getOffset
* @stable ICU 2.0
*/
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