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Posted to commits@couchdb.apache.org by be...@apache.org on 2014/02/13 19:12:02 UTC
[04/57] [abbrv] remove couch_collate
http://git-wip-us.apache.org/repos/asf/couchdb/blob/81332b78/apps/couch_collate/platform/osx/icu/unicode/utext.h
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diff --git a/apps/couch_collate/platform/osx/icu/unicode/utext.h b/apps/couch_collate/platform/osx/icu/unicode/utext.h
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-/*
-*******************************************************************************
-*
-* Copyright (C) 2004-2008, International Business Machines
-* Corporation and others. All Rights Reserved.
-*
-*******************************************************************************
-* file name: utext.h
-* encoding: US-ASCII
-* tab size: 8 (not used)
-* indentation:4
-*
-* created on: 2004oct06
-* created by: Markus W. Scherer
-*/
-
-#ifndef __UTEXT_H__
-#define __UTEXT_H__
-
-/**
- * \file
- * \brief C API: Abstract Unicode Text API
- *
- * The Text Access API provides a means to allow text that is stored in alternative
- * formats to work with ICU services. ICU normally operates on text that is
- * stored in UTF-16 format, in (UChar *) arrays for the C APIs or as type
- * UnicodeString for C++ APIs.
- *
- * ICU Text Access allows other formats, such as UTF-8 or non-contiguous
- * UTF-16 strings, to be placed in a UText wrapper and then passed to ICU services.
- *
- * There are three general classes of usage for UText:
- *
- * Application Level Use. This is the simplest usage - applications would
- * use one of the utext_open() functions on their input text, and pass
- * the resulting UText to the desired ICU service.
- *
- * Second is usage in ICU Services, such as break iteration, that will need to
- * operate on input presented to them as a UText. These implementations
- * will need to use the iteration and related UText functions to gain
- * access to the actual text.
- *
- * The third class of UText users are "text providers." These are the
- * UText implementations for the various text storage formats. An application
- * or system with a unique text storage format can implement a set of
- * UText provider functions for that format, which will then allow
- * ICU services to operate on that format.
- *
- *
- * <em>Iterating over text</em>
- *
- * Here is sample code for a forward iteration over the contents of a UText
- *
- * \code
- * UChar32 c;
- * UText *ut = whatever();
- *
- * for (c=utext_next32From(ut, 0); c>=0; c=utext_next32(ut)) {
- * // do whatever with the codepoint c here.
- * }
- * \endcode
- *
- * And here is similar code to iterate in the reverse direction, from the end
- * of the text towards the beginning.
- *
- * \code
- * UChar32 c;
- * UText *ut = whatever();
- * int textLength = utext_nativeLength(ut);
- * for (c=utext_previous32From(ut, textLength); c>=0; c=utext_previous32(ut)) {
- * // do whatever with the codepoint c here.
- * }
- * \endcode
- *
- * <em>Characters and Indexing</em>
- *
- * Indexing into text by UText functions is nearly always in terms of the native
- * indexing of the underlying text storage. The storage format could be UTF-8
- * or UTF-32, for example. When coding to the UText access API, no assumptions
- * can be made regarding the size of characters, or how far an index
- * may move when iterating between characters.
- *
- * All indices supplied to UText functions are pinned to the length of the
- * text. An out-of-bounds index is not considered to be an error, but is
- * adjusted to be in the range 0 <= index <= length of input text.
- *
- *
- * When an index position is returned from a UText function, it will be
- * a native index to the underlying text. In the case of multi-unit characters,
- * it will always refer to the first position of the character,
- * never to the interior. This is essentially the same thing as saying that
- * a returned index will always point to a boundary between characters.
- *
- * When a native index is supplied to a UText function, all indices that
- * refer to any part of a multi-unit character representation are considered
- * to be equivalent. In the case of multi-unit characters, an incoming index
- * will be logically normalized to refer to the start of the character.
- *
- * It is possible to test whether a native index is on a code point boundary
- * by doing a utext_setNativeIndex() followed by a utext_getNativeIndex().
- * If the index is returned unchanged, it was on a code point boundary. If
- * an adjusted index is returned, the original index referred to the
- * interior of a character.
- *
- * <em>Conventions for calling UText functions</em>
- *
- * Most UText access functions have as their first parameter a (UText *) pointer,
- * which specifies the UText to be used. Unless otherwise noted, the
- * pointer must refer to a valid, open UText. Attempting to
- * use a closed UText or passing a NULL pointer is a programming error and
- * will produce undefined results or NULL pointer exceptions.
- *
- * The UText_Open family of functions can either open an existing (closed)
- * UText, or heap allocate a new UText. Here is sample code for creating
- * a stack-allocated UText.
- *
- * \code
- * char *s = whatever(); // A utf-8 string
- * U_ErrorCode status = U_ZERO_ERROR;
- * UText ut = UTEXT_INITIALIZER;
- * utext_openUTF8(ut, s, -1, &status);
- * if (U_FAILURE(status)) {
- * // error handling
- * } else {
- * // work with the UText
- * }
- * \endcode
- *
- * Any existing UText passed to an open function _must_ have been initialized,
- * either by the UTEXT_INITIALIZER, or by having been originally heap-allocated
- * by an open function. Passing NULL will cause the open function to
- * heap-allocate and fully initialize a new UText.
- *
- */
-
-
-
-#include "unicode/utypes.h"
-#ifdef XP_CPLUSPLUS
-#include "unicode/rep.h"
-#include "unicode/unistr.h"
-#include "unicode/chariter.h"
-#endif
-
-
-U_CDECL_BEGIN
-
-struct UText;
-typedef struct UText UText; /**< C typedef for struct UText. @stable ICU 3.6 */
-
-
-/***************************************************************************************
- *
- * C Functions for creating UText wrappers around various kinds of text strings.
- *
- ****************************************************************************************/
-
-
-/**
- * Close function for UText instances.
- * Cleans up, releases any resources being held by an open UText.
- * <p>
- * If the UText was originally allocated by one of the utext_open functions,
- * the storage associated with the utext will also be freed.
- * If the UText storage originated with the application, as it would with
- * a local or static instance, the storage will not be deleted.
- *
- * An open UText can be reset to refer to new string by using one of the utext_open()
- * functions without first closing the UText.
- *
- * @param ut The UText to be closed.
- * @return NULL if the UText struct was deleted by the close. If the UText struct
- * was originally provided by the caller to the open function, it is
- * returned by this function, and may be safely used again in
- * a subsequent utext_open.
- *
- * @stable ICU 3.4
- */
-U_STABLE UText * U_EXPORT2
-utext_close(UText *ut);
-
-
-/**
- * Open a read-only UText implementation for UTF-8 strings.
- *
- * \htmlonly
- * Any invalid UTF-8 in the input will be handled in this way:
- * a sequence of bytes that has the form of a truncated, but otherwise valid,
- * UTF-8 sequence will be replaced by a single unicode replacement character, \uFFFD.
- * Any other illegal bytes will each be replaced by a \uFFFD.
- * \endhtmlonly
- *
- * @param ut Pointer to a UText struct. If NULL, a new UText will be created.
- * If non-NULL, must refer to an initialized UText struct, which will then
- * be reset to reference the specified UTF-8 string.
- * @param s A UTF-8 string. Must not be NULL.
- * @param length The length of the UTF-8 string in bytes, or -1 if the string is
- * zero terminated.
- * @param status Errors are returned here.
- * @return A pointer to the UText. If a pre-allocated UText was provided, it
- * will always be used and returned.
- * @stable ICU 3.4
- */
-U_STABLE UText * U_EXPORT2
-utext_openUTF8(UText *ut, const char *s, int64_t length, UErrorCode *status);
-
-
-/**
- * Open a read-only UText for UChar * string.
- *
- * @param ut Pointer to a UText struct. If NULL, a new UText will be created.
- * If non-NULL, must refer to an initialized UText struct, which will then
- * be reset to reference the specified UChar string.
- * @param s A UChar (UTF-16) string
- * @param length The number of UChars in the input string, or -1 if the string is
- * zero terminated.
- * @param status Errors are returned here.
- * @return A pointer to the UText. If a pre-allocated UText was provided, it
- * will always be used and returned.
- * @stable ICU 3.4
- */
-U_STABLE UText * U_EXPORT2
-utext_openUChars(UText *ut, const UChar *s, int64_t length, UErrorCode *status);
-
-
-#ifdef XP_CPLUSPLUS
-/**
- * Open a writable UText for a non-const UnicodeString.
- *
- * @param ut Pointer to a UText struct. If NULL, a new UText will be created.
- * If non-NULL, must refer to an initialized UText struct, which will then
- * be reset to reference the specified input string.
- * @param s A UnicodeString.
- * @param status Errors are returned here.
- * @return Pointer to the UText. If a UText was supplied as input, this
- * will always be used and returned.
- * @stable ICU 3.4
- */
-U_STABLE UText * U_EXPORT2
-utext_openUnicodeString(UText *ut, U_NAMESPACE_QUALIFIER UnicodeString *s, UErrorCode *status);
-
-
-/**
- * Open a UText for a const UnicodeString. The resulting UText will not be writable.
- *
- * @param ut Pointer to a UText struct. If NULL, a new UText will be created.
- * If non-NULL, must refer to an initialized UText struct, which will then
- * be reset to reference the specified input string.
- * @param s A const UnicodeString to be wrapped.
- * @param status Errors are returned here.
- * @return Pointer to the UText. If a UText was supplied as input, this
- * will always be used and returned.
- * @stable ICU 3.4
- */
-U_STABLE UText * U_EXPORT2
-utext_openConstUnicodeString(UText *ut, const U_NAMESPACE_QUALIFIER UnicodeString *s, UErrorCode *status);
-
-
-/**
- * Open a writable UText implementation for an ICU Replaceable object.
- * @param ut Pointer to a UText struct. If NULL, a new UText will be created.
- * If non-NULL, must refer to an already existing UText, which will then
- * be reset to reference the specified replaceable text.
- * @param rep A Replaceable text object.
- * @param status Errors are returned here.
- * @return Pointer to the UText. If a UText was supplied as input, this
- * will always be used and returned.
- * @see Replaceable
- * @stable ICU 3.4
- */
-U_STABLE UText * U_EXPORT2
-utext_openReplaceable(UText *ut, U_NAMESPACE_QUALIFIER Replaceable *rep, UErrorCode *status);
-
-/**
- * Open a UText implementation over an ICU CharacterIterator.
- * @param ut Pointer to a UText struct. If NULL, a new UText will be created.
- * If non-NULL, must refer to an already existing UText, which will then
- * be reset to reference the specified replaceable text.
- * @param ci A Character Iterator.
- * @param status Errors are returned here.
- * @return Pointer to the UText. If a UText was supplied as input, this
- * will always be used and returned.
- * @see Replaceable
- * @stable ICU 3.4
- */
-U_STABLE UText * U_EXPORT2
-utext_openCharacterIterator(UText *ut, U_NAMESPACE_QUALIFIER CharacterIterator *ic, UErrorCode *status);
-
-#endif
-
-
-/**
- * Clone a UText. This is much like opening a UText where the source text is itself
- * another UText.
- *
- * A deep clone will copy both the UText data structures and the underlying text.
- * The original and cloned UText will operate completely independently; modifications
- * made to the text in one will not affect the other. Text providers are not
- * required to support deep clones. The user of clone() must check the status return
- * and be prepared to handle failures.
- *
- * The standard UText implementations for UTF8, UChar *, UnicodeString and
- * Replaceable all support deep cloning.
- *
- * The UText returned from a deep clone will be writable, assuming that the text
- * provider is able to support writing, even if the source UText had been made
- * non-writable by means of UText_freeze().
- *
- * A shallow clone replicates only the UText data structures; it does not make
- * a copy of the underlying text. Shallow clones can be used as an efficient way to
- * have multiple iterators active in a single text string that is not being
- * modified.
- *
- * A shallow clone operation will not fail, barring truly exceptional conditions such
- * as memory allocation failures.
- *
- * Shallow UText clones should be avoided if the UText functions that modify the
- * text are expected to be used, either on the original or the cloned UText.
- * Any such modifications can cause unpredictable behavior. Read Only
- * shallow clones provide some protection against errors of this type by
- * disabling text modification via the cloned UText.
- *
- * A shallow clone made with the readOnly parameter == FALSE will preserve the
- * utext_isWritable() state of the source object. Note, however, that
- * write operations must be avoided while more than one UText exists that refer
- * to the same underlying text.
- *
- * A UText and its clone may be safely concurrently accessed by separate threads.
- * This is true for read access only with shallow clones, and for both read and
- * write access with deep clones.
- * It is the responsibility of the Text Provider to ensure that this thread safety
- * constraint is met.
- *
- * @param dest A UText struct to be filled in with the result of the clone operation,
- * or NULL if the clone function should heap-allocate a new UText struct.
- * If non-NULL, must refer to an already existing UText, which will then
- * be reset to become the clone.
- * @param src The UText to be cloned.
- * @param deep TRUE to request a deep clone, FALSE for a shallow clone.
- * @param readOnly TRUE to request that the cloned UText have read only access to the
- * underlying text.
-
- * @param status Errors are returned here. For deep clones, U_UNSUPPORTED_ERROR
- * will be returned if the text provider is unable to clone the
- * original text.
- * @return The newly created clone, or NULL if the clone operation failed.
- * @stable ICU 3.4
- */
-U_STABLE UText * U_EXPORT2
-utext_clone(UText *dest, const UText *src, UBool deep, UBool readOnly, UErrorCode *status);
-
-
-/**
- * Compare two UText objects for equality.
- * UTexts are equal if they are iterating over the same text, and
- * have the same iteration position within the text.
- * If either or both of the parameters are NULL, the comparison is FALSE.
- *
- * @param a The first of the two UTexts to compare.
- * @param b The other UText to be compared.
- * @return TRUE if the two UTexts are equal.
- * @stable ICU 3.6
- */
-U_STABLE UBool U_EXPORT2
-utext_equals(const UText *a, const UText *b);
-
-
-/*****************************************************************************
- *
- * Functions to work with the text represeted by a UText wrapper
- *
- *****************************************************************************/
-
-/**
- * Get the length of the text. Depending on the characteristics
- * of the underlying text representation, this may be expensive.
- * @see utext_isLengthExpensive()
- *
- *
- * @param ut the text to be accessed.
- * @return the length of the text, expressed in native units.
- *
- * @stable ICU 3.4
- */
-U_STABLE int64_t U_EXPORT2
-utext_nativeLength(UText *ut);
-
-/**
- * Return TRUE if calculating the length of the text could be expensive.
- * Finding the length of NUL terminated strings is considered to be expensive.
- *
- * Note that the value of this function may change
- * as the result of other operations on a UText.
- * Once the length of a string has been discovered, it will no longer
- * be expensive to report it.
- *
- * @param ut the text to be accessed.
- * @return TRUE if determining the length of the text could be time consuming.
- * @stable ICU 3.4
- */
-U_STABLE UBool U_EXPORT2
-utext_isLengthExpensive(const UText *ut);
-
-/**
- * Returns the code point at the requested index,
- * or U_SENTINEL (-1) if it is out of bounds.
- *
- * If the specified index points to the interior of a multi-unit
- * character - one of the trail bytes of a UTF-8 sequence, for example -
- * the complete code point will be returned.
- *
- * The iteration position will be set to the start of the returned code point.
- *
- * This function is roughly equivalent to the the sequence
- * utext_setNativeIndex(index);
- * utext_current32();
- * (There is a subtle difference if the index is out of bounds by being less than zero -
- * utext_setNativeIndex(negative value) sets the index to zero, after which utext_current()
- * will return the char at zero. utext_char32At(negative index), on the other hand, will
- * return the U_SENTINEL value of -1.)
- *
- * @param ut the text to be accessed
- * @param nativeIndex the native index of the character to be accessed. If the index points
- * to other than the first unit of a multi-unit character, it will be adjusted
- * to the start of the character.
- * @return the code point at the specified index.
- * @stable ICU 3.4
- */
-U_STABLE UChar32 U_EXPORT2
-utext_char32At(UText *ut, int64_t nativeIndex);
-
-
-/**
- *
- * Get the code point at the current iteration position,
- * or U_SENTINEL (-1) if the iteration has reached the end of
- * the input text.
- *
- * @param ut the text to be accessed.
- * @return the Unicode code point at the current iterator position.
- * @stable ICU 3.4
- */
-U_STABLE UChar32 U_EXPORT2
-utext_current32(UText *ut);
-
-
-/**
- * Get the code point at the current iteration position of the UText, and
- * advance the position to the first index following the character.
- *
- * If the position is at the end of the text (the index following
- * the last character, which is also the length of the text),
- * return U_SENTINEL (-1) and do not advance the index.
- *
- * This is a post-increment operation.
- *
- * An inline macro version of this function, UTEXT_NEXT32(),
- * is available for performance critical use.
- *
- * @param ut the text to be accessed.
- * @return the Unicode code point at the iteration position.
- * @see UTEXT_NEXT32
- * @stable ICU 3.4
- */
-U_STABLE UChar32 U_EXPORT2
-utext_next32(UText *ut);
-
-
-/**
- * Move the iterator position to the character (code point) whose
- * index precedes the current position, and return that character.
- * This is a pre-decrement operation.
- *
- * If the initial position is at the start of the text (index of 0)
- * return U_SENTINEL (-1), and leave the position unchanged.
- *
- * An inline macro version of this function, UTEXT_PREVIOUS32(),
- * is available for performance critical use.
- *
- * @param ut the text to be accessed.
- * @return the previous UChar32 code point, or U_SENTINEL (-1)
- * if the iteration has reached the start of the text.
- * @see UTEXT_PREVIOUS32
- * @stable ICU 3.4
- */
-U_STABLE UChar32 U_EXPORT2
-utext_previous32(UText *ut);
-
-
-/**
- * Set the iteration index and return the code point at that index.
- * Leave the iteration index at the start of the following code point.
- *
- * This function is the most efficient and convenient way to
- * begin a forward iteration. The results are identical to the those
- * from the sequence
- * \code
- * utext_setIndex();
- * utext_next32();
- * \endcode
- *
- * @param ut the text to be accessed.
- * @param nativeIndex Iteration index, in the native units of the text provider.
- * @return Code point which starts at or before index,
- * or U_SENTINEL (-1) if it is out of bounds.
- * @stable ICU 3.4
- */
-U_STABLE UChar32 U_EXPORT2
-utext_next32From(UText *ut, int64_t nativeIndex);
-
-
-
-/**
- * Set the iteration index, and return the code point preceding the
- * one specified by the initial index. Leave the iteration position
- * at the start of the returned code point.
- *
- * This function is the most efficient and convenient way to
- * begin a backwards iteration.
- *
- * @param ut the text to be accessed.
- * @param nativeIndex Iteration index in the native units of the text provider.
- * @return Code point preceding the one at the initial index,
- * or U_SENTINEL (-1) if it is out of bounds.
- *
- * @stable ICU 3.4
- */
-U_STABLE UChar32 U_EXPORT2
-utext_previous32From(UText *ut, int64_t nativeIndex);
-
-/**
- * Get the current iterator position, which can range from 0 to
- * the length of the text.
- * The position is a native index into the input text, in whatever format it
- * may have (possibly UTF-8 for example), and may not always be the same as
- * the corresponding UChar (UTF-16) index.
- * The returned position will always be aligned to a code point boundary.
- *
- * @param ut the text to be accessed.
- * @return the current index position, in the native units of the text provider.
- * @stable ICU 3.4
- */
-U_STABLE int64_t U_EXPORT2
-utext_getNativeIndex(const UText *ut);
-
-/**
- * Set the current iteration position to the nearest code point
- * boundary at or preceding the specified index.
- * The index is in the native units of the original input text.
- * If the index is out of range, it will be pinned to be within
- * the range of the input text.
- * <p>
- * It will usually be more efficient to begin an iteration
- * using the functions utext_next32From() or utext_previous32From()
- * rather than setIndex().
- * <p>
- * Moving the index position to an adjacent character is best done
- * with utext_next32(), utext_previous32() or utext_moveIndex32().
- * Attempting to do direct arithmetic on the index position is
- * complicated by the fact that the size (in native units) of a
- * character depends on the underlying representation of the character
- * (UTF-8, UTF-16, UTF-32, arbitrary codepage), and is not
- * easily knowable.
- *
- * @param ut the text to be accessed.
- * @param nativeIndex the native unit index of the new iteration position.
- * @stable ICU 3.4
- */
-U_STABLE void U_EXPORT2
-utext_setNativeIndex(UText *ut, int64_t nativeIndex);
-
-/**
- * Move the iterator postion by delta code points. The number of code points
- * is a signed number; a negative delta will move the iterator backwards,
- * towards the start of the text.
- * <p>
- * The index is moved by <code>delta</code> code points
- * forward or backward, but no further backward than to 0 and
- * no further forward than to utext_nativeLength().
- * The resulting index value will be in between 0 and length, inclusive.
- *
- * @param ut the text to be accessed.
- * @param delta the signed number of code points to move the iteration position.
- * @return TRUE if the position could be moved the requested number of positions while
- * staying within the range [0 - text length].
- * @stable ICU 3.4
- */
-U_STABLE UBool U_EXPORT2
-utext_moveIndex32(UText *ut, int32_t delta);
-
-/**
- * Get the native index of the character preceeding the current position.
- * If the iteration position is already at the start of the text, zero
- * is returned.
- * The value returned is the same as that obtained from the following sequence,
- * but without the side effect of changing the iteration position.
- *
- * \code
- * UText *ut = whatever;
- * ...
- * utext_previous(ut)
- * utext_getNativeIndex(ut);
- * \endcode
- *
- * This function is most useful during forwards iteration, where it will get the
- * native index of the character most recently returned from utext_next().
- *
- * @param ut the text to be accessed
- * @return the native index of the character preceeding the current index position,
- * or zero if the current position is at the start of the text.
- * @stable ICU 3.6
- */
-U_STABLE int64_t U_EXPORT2
-utext_getPreviousNativeIndex(UText *ut);
-
-
-/**
- *
- * Extract text from a UText into a UChar buffer. The range of text to be extracted
- * is specified in the native indices of the UText provider. These may not necessarily
- * be UTF-16 indices.
- * <p>
- * The size (number of 16 bit UChars) of the data to be extracted is returned. The
- * full number of UChars is returned, even when the extracted text is truncated
- * because the specified buffer size is too small.
- * <p>
- * The extracted string will (if you are a user) / must (if you are a text provider)
- * be NUL-terminated if there is sufficient space in the destination buffer. This
- * terminating NUL is not included in the returned length.
- * <p>
- * The iteration index is left at the position following the last extracted character.
- *
- * @param ut the UText from which to extract data.
- * @param nativeStart the native index of the first character to extract.\
- * If the specified index is out of range,
- * it will be pinned to to be within 0 <= index <= textLength
- * @param nativeLimit the native string index of the position following the last
- * character to extract. If the specified index is out of range,
- * it will be pinned to to be within 0 <= index <= textLength.
- * nativeLimit must be >= nativeStart.
- * @param dest the UChar (UTF-16) buffer into which the extracted text is placed
- * @param destCapacity The size, in UChars, of the destination buffer. May be zero
- * for precomputing the required size.
- * @param status receives any error status.
- * U_BUFFER_OVERFLOW_ERROR: the extracted text was truncated because the
- * buffer was too small. Returns number of UChars for preflighting.
- * @return Number of UChars in the data to be extracted. Does not include a trailing NUL.
- *
- * @stable ICU 3.4
- */
-U_STABLE int32_t U_EXPORT2
-utext_extract(UText *ut,
- int64_t nativeStart, int64_t nativeLimit,
- UChar *dest, int32_t destCapacity,
- UErrorCode *status);
-
-
-/************************************************************************************
- *
- * #define inline versions of selected performance-critical text access functions
- * Caution: do not use auto increment++ or decrement-- expressions
- * as parameters to these macros.
- *
- * For most use, where there is no extreme performance constraint, the
- * normal, non-inline functions are a better choice. The resulting code
- * will be smaller, and, if the need ever arises, easier to debug.
- *
- * These are implemented as #defines rather than real functions
- * because there is no fully portable way to do inline functions in plain C.
- *
- ************************************************************************************/
-
-/**
- * inline version of utext_next32(), for performance-critical situations.
- *
- * Get the code point at the current iteration position of the UText, and
- * advance the position to the first index following the character.
- * This is a post-increment operation.
- * Returns U_SENTINEL (-1) if the position is at the end of the
- * text.
- *
- * @stable ICU 3.4
- */
-#define UTEXT_NEXT32(ut) \
- ((ut)->chunkOffset < (ut)->chunkLength && ((ut)->chunkContents)[(ut)->chunkOffset]<0xd800 ? \
- ((ut)->chunkContents)[((ut)->chunkOffset)++] : utext_next32(ut))
-
-/**
- * inline version of utext_previous32(), for performance-critical situations.
- *
- * Move the iterator position to the character (code point) whose
- * index precedes the current position, and return that character.
- * This is a pre-decrement operation.
- * Returns U_SENTINEL (-1) if the position is at the start of the text.
- *
- * @stable ICU 3.4
- */
-#define UTEXT_PREVIOUS32(ut) \
- ((ut)->chunkOffset > 0 && \
- (ut)->chunkContents[(ut)->chunkOffset-1] < 0xd800 ? \
- (ut)->chunkContents[--((ut)->chunkOffset)] : utext_previous32(ut))
-
-/**
- * inline version of utext_getNativeIndex(), for performance-critical situations.
- *
- * Get the current iterator position, which can range from 0 to
- * the length of the text.
- * The position is a native index into the input text, in whatever format it
- * may have (possibly UTF-8 for example), and may not always be the same as
- * the corresponding UChar (UTF-16) index.
- * The returned position will always be aligned to a code point boundary.
- *
- * @stable ICU 3.6
- */
-#define UTEXT_GETNATIVEINDEX(ut) \
- ((ut)->chunkOffset <= (ut)->nativeIndexingLimit? \
- (ut)->chunkNativeStart+(ut)->chunkOffset : \
- (ut)->pFuncs->mapOffsetToNative(ut))
-
-/**
- * inline version of utext_setNativeIndex(), for performance-critical situations.
- *
- * Set the current iteration position to the nearest code point
- * boundary at or preceding the specified index.
- * The index is in the native units of the original input text.
- * If the index is out of range, it will be pinned to be within
- * the range of the input text.
- *
- * @stable ICU 4.0
- */
-#define UTEXT_SETNATIVEINDEX(ut, ix) \
- { int64_t __offset = (ix) - (ut)->chunkNativeStart; \
- if (__offset>=0 && __offset<=(int64_t)(ut)->nativeIndexingLimit) { \
- (ut)->chunkOffset=(int32_t)__offset; \
- } else { \
- utext_setNativeIndex((ut), (ix)); } }
-
-
-
-/************************************************************************************
- *
- * Functions related to writing or modifying the text.
- * These will work only with modifiable UTexts. Attempting to
- * modify a read-only UText will return an error status.
- *
- ************************************************************************************/
-
-
-/**
- * Return TRUE if the text can be written (modified) with utext_replace() or
- * utext_copy(). For the text to be writable, the text provider must
- * be of a type that supports writing and the UText must not be frozen.
- *
- * Attempting to modify text when utext_isWriteable() is FALSE will fail -
- * the text will not be modified, and an error will be returned from the function
- * that attempted the modification.
- *
- * @param ut the UText to be tested.
- * @return TRUE if the text is modifiable.
- *
- * @see utext_freeze()
- * @see utext_replace()
- * @see utext_copy()
- * @stable ICU 3.4
- *
- */
-U_STABLE UBool U_EXPORT2
-utext_isWritable(const UText *ut);
-
-
-/**
- * Test whether there is meta data associated with the text.
- * @see Replaceable::hasMetaData()
- *
- * @param ut The UText to be tested
- * @return TRUE if the underlying text includes meta data.
- * @stable ICU 3.4
- */
-U_STABLE UBool U_EXPORT2
-utext_hasMetaData(const UText *ut);
-
-
-/**
- * Replace a range of the original text with a replacement text.
- *
- * Leaves the current iteration position at the position following the
- * newly inserted replacement text.
- *
- * This function is only available on UText types that support writing,
- * that is, ones where utext_isWritable() returns TRUE.
- *
- * When using this function, there should be only a single UText opened onto the
- * underlying native text string. Behavior after a replace operation
- * on a UText is undefined for any other additional UTexts that refer to the
- * modified string.
- *
- * @param ut the UText representing the text to be operated on.
- * @param nativeStart the native index of the start of the region to be replaced
- * @param nativeLimit the native index of the character following the region to be replaced.
- * @param replacementText pointer to the replacement text
- * @param replacementLength length of the replacement text, or -1 if the text is NUL terminated.
- * @param status receives any error status. Possible errors include
- * U_NO_WRITE_PERMISSION
- *
- * @return The signed number of (native) storage units by which
- * the length of the text expanded or contracted.
- *
- * @stable ICU 3.4
- */
-U_STABLE int32_t U_EXPORT2
-utext_replace(UText *ut,
- int64_t nativeStart, int64_t nativeLimit,
- const UChar *replacementText, int32_t replacementLength,
- UErrorCode *status);
-
-
-
-/**
- *
- * Copy or move a substring from one position to another within the text,
- * while retaining any metadata associated with the text.
- * This function is used to duplicate or reorder substrings.
- * The destination index must not overlap the source range.
- *
- * The text to be copied or moved is inserted at destIndex;
- * it does not replace or overwrite any existing text.
- *
- * The iteration position is left following the newly inserted text
- * at the destination position.
- *
- * This function is only available on UText types that support writing,
- * that is, ones where utext_isWritable() returns TRUE.
- *
- * When using this function, there should be only a single UText opened onto the
- * underlying native text string. Behavior after a copy operation
- * on a UText is undefined in any other additional UTexts that refer to the
- * modified string.
- *
- * @param ut The UText representing the text to be operated on.
- * @param nativeStart The native index of the start of the region to be copied or moved
- * @param nativeLimit The native index of the character position following the region
- * to be copied.
- * @param destIndex The native destination index to which the source substring is
- * copied or moved.
- * @param move If TRUE, then the substring is moved, not copied/duplicated.
- * @param status receives any error status. Possible errors include U_NO_WRITE_PERMISSION
- *
- * @stable ICU 3.4
- */
-U_STABLE void U_EXPORT2
-utext_copy(UText *ut,
- int64_t nativeStart, int64_t nativeLimit,
- int64_t destIndex,
- UBool move,
- UErrorCode *status);
-
-
-/**
- * <p>
- * Freeze a UText. This prevents any modification to the underlying text itself
- * by means of functions operating on this UText.
- * </p>
- * <p>
- * Once frozen, a UText can not be unfrozen. The intent is to ensure
- * that a the text underlying a frozen UText wrapper cannot be modified via that UText.
- * </p>
- * <p>
- * Caution: freezing a UText will disable changes made via the specific
- * frozen UText wrapper only; it will not have any effect on the ability to
- * directly modify the text by bypassing the UText. Any such backdoor modifications
- * are always an error while UText access is occuring because the underlying
- * text can get out of sync with UText's buffering.
- * </p>
- *
- * @param ut The UText to be frozen.
- * @see utext_isWritable()
- * @stable ICU 3.6
- */
-U_STABLE void U_EXPORT2
-utext_freeze(UText *ut);
-
-
-/**
- * UText provider properties (bit field indexes).
- *
- * @see UText
- * @stable ICU 3.4
- */
-enum {
- /**
- * It is potentially time consuming for the provider to determine the length of the text.
- * @stable ICU 3.4
- */
- UTEXT_PROVIDER_LENGTH_IS_EXPENSIVE = 1,
- /**
- * Text chunks remain valid and usable until the text object is modified or
- * deleted, not just until the next time the access() function is called
- * (which is the default).
- * @stable ICU 3.4
- */
- UTEXT_PROVIDER_STABLE_CHUNKS = 2,
- /**
- * The provider supports modifying the text via the replace() and copy()
- * functions.
- * @see Replaceable
- * @stable ICU 3.4
- */
- UTEXT_PROVIDER_WRITABLE = 3,
- /**
- * There is meta data associated with the text.
- * @see Replaceable::hasMetaData()
- * @stable ICU 3.4
- */
- UTEXT_PROVIDER_HAS_META_DATA = 4,
- /**
- * Text provider owns the text storage.
- * Generally occurs as the result of a deep clone of the UText.
- * When closing the UText, the associated text must
- * also be closed/deleted/freed/ whatever is appropriate.
- * @stable ICU 3.6
- */
- UTEXT_PROVIDER_OWNS_TEXT = 5
-};
-
-/**
- * Function type declaration for UText.clone().
- *
- * clone a UText. Much like opening a UText where the source text is itself
- * another UText.
- *
- * A deep clone will copy both the UText data structures and the underlying text.
- * The original and cloned UText will operate completely independently; modifications
- * made to the text in one will not effect the other. Text providers are not
- * required to support deep clones. The user of clone() must check the status return
- * and be prepared to handle failures.
- *
- * A shallow clone replicates only the UText data structures; it does not make
- * a copy of the underlying text. Shallow clones can be used as an efficient way to
- * have multiple iterators active in a single text string that is not being
- * modified.
- *
- * A shallow clone operation must not fail except for truly exceptional conditions such
- * as memory allocation failures.
- *
- * A UText and its clone may be safely concurrently accessed by separate threads.
- * This is true for both shallow and deep clones.
- * It is the responsibility of the Text Provider to ensure that this thread safety
- * constraint is met.
-
- *
- * @param dest A UText struct to be filled in with the result of the clone operation,
- * or NULL if the clone function should heap-allocate a new UText struct.
- * @param src The UText to be cloned.
- * @param deep TRUE to request a deep clone, FALSE for a shallow clone.
- * @param status Errors are returned here. For deep clones, U_UNSUPPORTED_ERROR
- * should be returned if the text provider is unable to clone the
- * original text.
- * @return The newly created clone, or NULL if the clone operation failed.
- *
- * @stable ICU 3.4
- */
-typedef UText * U_CALLCONV
-UTextClone(UText *dest, const UText *src, UBool deep, UErrorCode *status);
-
-
-/**
- * Function type declaration for UText.nativeLength().
- *
- * @param ut the UText to get the length of.
- * @return the length, in the native units of the original text string.
- * @see UText
- * @stable ICU 3.4
- */
-typedef int64_t U_CALLCONV
-UTextNativeLength(UText *ut);
-
-/**
- * Function type declaration for UText.access(). Get the description of the text chunk
- * containing the text at a requested native index. The UText's iteration
- * position will be left at the requested index. If the index is out
- * of bounds, the iteration position will be left at the start or end
- * of the string, as appropriate.
- *
- * Chunks must begin and end on code point boundaries. A single code point
- * comprised of multiple storage units must never span a chunk boundary.
- *
- *
- * @param ut the UText being accessed.
- * @param nativeIndex Requested index of the text to be accessed.
- * @param forward If TRUE, then the returned chunk must contain text
- * starting from the index, so that start<=index<limit.
- * If FALSE, then the returned chunk must contain text
- * before the index, so that start<index<=limit.
- * @return True if the requested index could be accessed. The chunk
- * will contain the requested text.
- * False value if a chunk cannot be accessed
- * (the requested index is out of bounds).
- *
- * @see UText
- * @stable ICU 3.4
- */
-typedef UBool U_CALLCONV
-UTextAccess(UText *ut, int64_t nativeIndex, UBool forward);
-
-/**
- * Function type declaration for UText.extract().
- *
- * Extract text from a UText into a UChar buffer. The range of text to be extracted
- * is specified in the native indices of the UText provider. These may not necessarily
- * be UTF-16 indices.
- * <p>
- * The size (number of 16 bit UChars) in the data to be extracted is returned. The
- * full amount is returned, even when the specified buffer size is smaller.
- * <p>
- * The extracted string will (if you are a user) / must (if you are a text provider)
- * be NUL-terminated if there is sufficient space in the destination buffer.
- *
- * @param ut the UText from which to extract data.
- * @param nativeStart the native index of the first characer to extract.
- * @param nativeLimit the native string index of the position following the last
- * character to extract.
- * @param dest the UChar (UTF-16) buffer into which the extracted text is placed
- * @param destCapacity The size, in UChars, of the destination buffer. May be zero
- * for precomputing the required size.
- * @param status receives any error status.
- * If U_BUFFER_OVERFLOW_ERROR: Returns number of UChars for
- * preflighting.
- * @return Number of UChars in the data. Does not include a trailing NUL.
- *
- * @stable ICU 3.4
- */
-typedef int32_t U_CALLCONV
-UTextExtract(UText *ut,
- int64_t nativeStart, int64_t nativeLimit,
- UChar *dest, int32_t destCapacity,
- UErrorCode *status);
-
-/**
- * Function type declaration for UText.replace().
- *
- * Replace a range of the original text with a replacement text.
- *
- * Leaves the current iteration position at the position following the
- * newly inserted replacement text.
- *
- * This function need only be implemented on UText types that support writing.
- *
- * When using this function, there should be only a single UText opened onto the
- * underlying native text string. The function is responsible for updating the
- * text chunk within the UText to reflect the updated iteration position,
- * taking into account any changes to the underlying string's structure caused
- * by the replace operation.
- *
- * @param ut the UText representing the text to be operated on.
- * @param nativeStart the index of the start of the region to be replaced
- * @param nativeLimit the index of the character following the region to be replaced.
- * @param replacementText pointer to the replacement text
- * @param replacmentLength length of the replacement text in UChars, or -1 if the text is NUL terminated.
- * @param status receives any error status. Possible errors include
- * U_NO_WRITE_PERMISSION
- *
- * @return The signed number of (native) storage units by which
- * the length of the text expanded or contracted.
- *
- * @stable ICU 3.4
- */
-typedef int32_t U_CALLCONV
-UTextReplace(UText *ut,
- int64_t nativeStart, int64_t nativeLimit,
- const UChar *replacementText, int32_t replacmentLength,
- UErrorCode *status);
-
-/**
- * Function type declaration for UText.copy().
- *
- * Copy or move a substring from one position to another within the text,
- * while retaining any metadata associated with the text.
- * This function is used to duplicate or reorder substrings.
- * The destination index must not overlap the source range.
- *
- * The text to be copied or moved is inserted at destIndex;
- * it does not replace or overwrite any existing text.
- *
- * This function need only be implemented for UText types that support writing.
- *
- * When using this function, there should be only a single UText opened onto the
- * underlying native text string. The function is responsible for updating the
- * text chunk within the UText to reflect the updated iteration position,
- * taking into account any changes to the underlying string's structure caused
- * by the replace operation.
- *
- * @param ut The UText representing the text to be operated on.
- * @param nativeStart The index of the start of the region to be copied or moved
- * @param nativeLimit The index of the character following the region to be replaced.
- * @param nativeDest The destination index to which the source substring is copied or moved.
- * @param move If TRUE, then the substring is moved, not copied/duplicated.
- * @param status receives any error status. Possible errors include U_NO_WRITE_PERMISSION
- *
- * @stable ICU 3.4
- */
-typedef void U_CALLCONV
-UTextCopy(UText *ut,
- int64_t nativeStart, int64_t nativeLimit,
- int64_t nativeDest,
- UBool move,
- UErrorCode *status);
-
-/**
- * Function type declaration for UText.mapOffsetToNative().
- * Map from the current UChar offset within the current text chunk to
- * the corresponding native index in the original source text.
- *
- * This is required only for text providers that do not use native UTF-16 indexes.
- *
- * @param ut the UText.
- * @return Absolute (native) index corresponding to chunkOffset in the current chunk.
- * The returned native index should always be to a code point boundary.
- *
- * @stable ICU 3.4
- */
-typedef int64_t U_CALLCONV
-UTextMapOffsetToNative(const UText *ut);
-
-/**
- * Function type declaration for UText.mapIndexToUTF16().
- * Map from a native index to a UChar offset within a text chunk.
- * Behavior is undefined if the native index does not fall within the
- * current chunk.
- *
- * This function is required only for text providers that do not use native UTF-16 indexes.
- *
- * @param ut The UText containing the text chunk.
- * @param nativeIndex Absolute (native) text index, chunk->start<=index<=chunk->limit.
- * @return Chunk-relative UTF-16 offset corresponding to the specified native
- * index.
- *
- * @stable ICU 3.4
- */
-typedef int32_t U_CALLCONV
-UTextMapNativeIndexToUTF16(const UText *ut, int64_t nativeIndex);
-
-
-/**
- * Function type declaration for UText.utextClose().
- *
- * A Text Provider close function is only required for provider types that make
- * allocations in their open function (or other functions) that must be
- * cleaned when the UText is closed.
- *
- * The allocation of the UText struct itself and any "extra" storage
- * associated with the UText is handled by the common UText implementation
- * and does not require provider specific cleanup in a close function.
- *
- * Most UText provider implementations do not need to implement this function.
- *
- * @param ut A UText object to be closed.
- *
- * @stable ICU 3.4
- */
-typedef void U_CALLCONV
-UTextClose(UText *ut);
-
-
-/**
- * (public) Function dispatch table for UText.
- * Conceptually very much like a C++ Virtual Function Table.
- * This struct defines the organization of the table.
- * Each text provider implementation must provide an
- * actual table that is initialized with the appropriate functions
- * for the type of text being handled.
- * @stable ICU 3.6
- */
-struct UTextFuncs {
- /**
- * (public) Function table size, sizeof(UTextFuncs)
- * Intended for use should the table grow to accomodate added
- * functions in the future, to allow tests for older format
- * function tables that do not contain the extensions.
- *
- * Fields are placed for optimal alignment on
- * 32/64/128-bit-pointer machines, by normally grouping together
- * 4 32-bit fields,
- * 4 pointers,
- * 2 64-bit fields
- * in sequence.
- * @stable ICU 3.6
- */
- int32_t tableSize;
-
- /**
- * (private) Alignment padding.
- * Do not use, reserved for use by the UText framework only.
- * @internal
- */
- int32_t reserved1, /** @internal */ reserved2, /** @internal */ reserved3;
-
-
- /**
- * (public) Function pointer for UTextClone
- *
- * @see UTextClone
- * @stable ICU 3.6
- */
- UTextClone *clone;
-
- /**
- * (public) function pointer for UTextLength
- * May be expensive to compute!
- *
- * @see UTextLength
- * @stable ICU 3.6
- */
- UTextNativeLength *nativeLength;
-
- /**
- * (public) Function pointer for UTextAccess.
- *
- * @see UTextAccess
- * @stable ICU 3.6
- */
- UTextAccess *access;
-
- /**
- * (public) Function pointer for UTextExtract.
- *
- * @see UTextExtract
- * @stable ICU 3.6
- */
- UTextExtract *extract;
-
- /**
- * (public) Function pointer for UTextReplace.
- *
- * @see UTextReplace
- * @stable ICU 3.6
- */
- UTextReplace *replace;
-
- /**
- * (public) Function pointer for UTextCopy.
- *
- * @see UTextCopy
- * @stable ICU 3.6
- */
- UTextCopy *copy;
-
- /**
- * (public) Function pointer for UTextMapOffsetToNative.
- *
- * @see UTextMapOffsetToNative
- * @stable ICU 3.6
- */
- UTextMapOffsetToNative *mapOffsetToNative;
-
- /**
- * (public) Function pointer for UTextMapNativeIndexToUTF16.
- *
- * @see UTextMapNativeIndexToUTF16
- * @stable ICU 3.6
- */
- UTextMapNativeIndexToUTF16 *mapNativeIndexToUTF16;
-
- /**
- * (public) Function pointer for UTextClose.
- *
- * @see UTextClose
- * @stable ICU 3.6
- */
- UTextClose *close;
-
- /**
- * (private) Spare function pointer
- * @internal
- */
-
- UTextClose *spare1;
- /**
- * (private) Spare function pointer
- * @internal
- */
- UTextClose *spare2;
-
- /**
- * (private) Spare function pointer
- * @internal
- */
- UTextClose *spare3;
-
-};
-/**
- * Function dispatch table for UText
- * @see UTextFuncs
- */
-typedef struct UTextFuncs UTextFuncs;
-
- /**
- * UText struct. Provides the interface between the generic UText access code
- * and the UText provider code that works on specific kinds of
- * text (UTF-8, noncontiguous UTF-16, whatever.)
- *
- * Applications that are using predefined types of text providers
- * to pass text data to ICU services will have no need to view the
- * internals of the UText structs that they open.
- *
- * @stable ICU 3.6
- */
-struct UText {
- /**
- * (private) Magic. Used to help detect when UText functions are handed
- * invalid or unitialized UText structs.
- * utext_openXYZ() functions take an initialized,
- * but not necessarily open, UText struct as an
- * optional fill-in parameter. This magic field
- * is used to check for that initialization.
- * Text provider close functions must NOT clear
- * the magic field because that would prevent
- * reuse of the UText struct.
- * @internal
- */
- uint32_t magic;
-
-
- /**
- * (private) Flags for managing the allocation and freeing of
- * memory associated with this UText.
- * @internal
- */
- int32_t flags;
-
-
- /**
- * Text provider properties. This set of flags is maintainted by the
- * text provider implementation.
- * @stable ICU 3.4
- */
- int32_t providerProperties;
-
- /**
- * (public) sizeOfStruct=sizeof(UText)
- * Allows possible backward compatible extension.
- *
- * @stable ICU 3.4
- */
- int32_t sizeOfStruct;
-
- /* ------ 16 byte alignment boundary ----------- */
-
-
- /**
- * (protected) Native index of the first character position following
- * the current chunk.
- * @stable ICU 3.6
- */
- int64_t chunkNativeLimit;
-
- /**
- * (protected) Size in bytes of the extra space (pExtra).
- * @stable ICU 3.4
- */
- int32_t extraSize;
-
- /**
- * (protected) The highest chunk offset where native indexing and
- * chunk (UTF-16) indexing correspond. For UTF-16 sources, value
- * will be equal to chunkLength.
- *
- * @stable ICU 3.6
- */
- int32_t nativeIndexingLimit;
-
- /* ---- 16 byte alignment boundary------ */
-
- /**
- * (protected) Native index of the first character in the text chunk.
- * @stable ICU 3.6
- */
- int64_t chunkNativeStart;
-
- /**
- * (protected) Current iteration position within the text chunk (UTF-16 buffer).
- * This is the index to the character that will be returned by utext_next32().
- * @stable ICU 3.6
- */
- int32_t chunkOffset;
-
- /**
- * (protected) Length the text chunk (UTF-16 buffer), in UChars.
- * @stable ICU 3.6
- */
- int32_t chunkLength;
-
- /* ---- 16 byte alignment boundary-- */
-
-
- /**
- * (protected) pointer to a chunk of text in UTF-16 format.
- * May refer either to original storage of the source of the text, or
- * if conversion was required, to a buffer owned by the UText.
- * @stable ICU 3.6
- */
- const UChar *chunkContents;
-
- /**
- * (public) Pointer to Dispatch table for accessing functions for this UText.
- * @stable ICU 3.6
- */
- const UTextFuncs *pFuncs;
-
- /**
- * (protected) Pointer to additional space requested by the
- * text provider during the utext_open operation.
- * @stable ICU 3.4
- */
- void *pExtra;
-
- /**
- * (protected) Pointer to string or text-containin object or similar.
- * This is the source of the text that this UText is wrapping, in a format
- * that is known to the text provider functions.
- * @stable ICU 3.4
- */
- const void *context;
-
- /* --- 16 byte alignment boundary--- */
-
- /**
- * (protected) Pointer fields available for use by the text provider.
- * Not used by UText common code.
- * @stable ICU 3.6
- */
- const void *p;
- /**
- * (protected) Pointer fields available for use by the text provider.
- * Not used by UText common code.
- * @stable ICU 3.6
- */
- const void *q;
- /**
- * (protected) Pointer fields available for use by the text provider.
- * Not used by UText common code.
- * @stable ICU 3.6
- */
- const void *r;
-
- /**
- * Private field reserved for future use by the UText framework
- * itself. This is not to be touched by the text providers.
- * @internal ICU 3.4
- */
- void *privP;
-
-
- /* --- 16 byte alignment boundary--- */
-
-
- /**
- * (protected) Integer field reserved for use by the text provider.
- * Not used by the UText framework, or by the client (user) of the UText.
- * @stable ICU 3.4
- */
- int64_t a;
-
- /**
- * (protected) Integer field reserved for use by the text provider.
- * Not used by the UText framework, or by the client (user) of the UText.
- * @stable ICU 3.4
- */
- int32_t b;
-
- /**
- * (protected) Integer field reserved for use by the text provider.
- * Not used by the UText framework, or by the client (user) of the UText.
- * @stable ICU 3.4
- */
- int32_t c;
-
- /* ---- 16 byte alignment boundary---- */
-
-
- /**
- * Private field reserved for future use by the UText framework
- * itself. This is not to be touched by the text providers.
- * @internal ICU 3.4
- */
- int64_t privA;
- /**
- * Private field reserved for future use by the UText framework
- * itself. This is not to be touched by the text providers.
- * @internal ICU 3.4
- */
- int32_t privB;
- /**
- * Private field reserved for future use by the UText framework
- * itself. This is not to be touched by the text providers.
- * @internal ICU 3.4
- */
- int32_t privC;
-};
-
-
-/**
- * Common function for use by Text Provider implementations to allocate and/or initialize
- * a new UText struct. To be called in the implementation of utext_open() functions.
- * If the supplied UText parameter is null, a new UText struct will be allocated on the heap.
- * If the supplied UText is already open, the provider's close function will be called
- * so that the struct can be reused by the open that is in progress.
- *
- * @param ut pointer to a UText struct to be re-used, or null if a new UText
- * should be allocated.
- * @param extraSpace The amount of additional space to be allocated as part
- * of this UText, for use by types of providers that require
- * additional storage.
- * @param status Errors are returned here.
- * @return pointer to the UText, allocated if necessary, with extra space set up if requested.
- * @stable ICU 3.4
- */
-U_STABLE UText * U_EXPORT2
-utext_setup(UText *ut, int32_t extraSpace, UErrorCode *status);
-
-/**
- * @internal
- * Value used to help identify correctly initialized UText structs.
- * Note: must be publicly visible so that UTEXT_INITIALIZER can access it.
- */
-enum {
- UTEXT_MAGIC = 0x345ad82c
-};
-
-/**
- * initializer to be used with local (stack) instances of a UText
- * struct. UText structs must be initialized before passing
- * them to one of the utext_open functions.
- *
- * @stable ICU 3.6
- */
-#define UTEXT_INITIALIZER { \
- UTEXT_MAGIC, /* magic */ \
- 0, /* flags */ \
- 0, /* providerProps */ \
- sizeof(UText), /* sizeOfStruct */ \
- 0, /* chunkNativeLimit */ \
- 0, /* extraSize */ \
- 0, /* nativeIndexingLimit */ \
- 0, /* chunkNativeStart */ \
- 0, /* chunkOffset */ \
- 0, /* chunkLength */ \
- NULL, /* chunkContents */ \
- NULL, /* pFuncs */ \
- NULL, /* pExtra */ \
- NULL, /* context */ \
- NULL, NULL, NULL, /* p, q, r */ \
- NULL, /* privP */ \
- 0, 0, 0, /* a, b, c */ \
- 0, 0, 0 /* privA,B,C, */ \
- }
-
-
-U_CDECL_END
-
-
-
-#endif
http://git-wip-us.apache.org/repos/asf/couchdb/blob/81332b78/apps/couch_collate/platform/osx/icu/unicode/utf.h
----------------------------------------------------------------------
diff --git a/apps/couch_collate/platform/osx/icu/unicode/utf.h b/apps/couch_collate/platform/osx/icu/unicode/utf.h
deleted file mode 100644
index 1682283..0000000
--- a/apps/couch_collate/platform/osx/icu/unicode/utf.h
+++ /dev/null
@@ -1,227 +0,0 @@
-/*
-*******************************************************************************
-*
-* Copyright (C) 1999-2007, International Business Machines
-* Corporation and others. All Rights Reserved.
-*
-*******************************************************************************
-* file name: utf.h
-* encoding: US-ASCII
-* tab size: 8 (not used)
-* indentation:4
-*
-* created on: 1999sep09
-* created by: Markus W. Scherer
-*/
-
-/**
- * \file
- * \brief C API: Code point macros
- *
- * This file defines macros for checking whether a code point is
- * a surrogate or a non-character etc.
- *
- * The UChar and UChar32 data types for Unicode code units and code points
- * are defined in umachines.h because they can be machine-dependent.
- *
- * utf.h is included by utypes.h and itself includes utf8.h and utf16.h after some
- * common definitions. Those files define macros for efficiently getting code points
- * in and out of UTF-8/16 strings.
- * utf16.h macros have "U16_" prefixes.
- * utf8.h defines similar macros with "U8_" prefixes for UTF-8 string handling.
- *
- * ICU processes 16-bit Unicode strings.
- * Most of the time, such strings are well-formed UTF-16.
- * Single, unpaired surrogates must be handled as well, and are treated in ICU
- * like regular code points where possible.
- * (Pairs of surrogate code points are indistinguishable from supplementary
- * code points encoded as pairs of supplementary code units.)
- *
- * In fact, almost all Unicode code points in normal text (>99%)
- * are on the BMP (<=U+ffff) and even <=U+d7ff.
- * ICU functions handle supplementary code points (U+10000..U+10ffff)
- * but are optimized for the much more frequently occurring BMP code points.
- *
- * utf.h defines UChar to be an unsigned 16-bit integer. If this matches wchar_t, then
- * UChar is defined to be exactly wchar_t, otherwise uint16_t.
- *
- * UChar32 is defined to be a signed 32-bit integer (int32_t), large enough for a 21-bit
- * Unicode code point (Unicode scalar value, 0..0x10ffff).
- * Before ICU 2.4, the definition of UChar32 was similarly platform-dependent as
- * the definition of UChar. For details see the documentation for UChar32 itself.
- *
- * utf.h also defines a small number of C macros for single Unicode code points.
- * These are simple checks for surrogates and non-characters.
- * For actual Unicode character properties see uchar.h.
- *
- * By default, string operations must be done with error checking in case
- * a string is not well-formed UTF-16.
- * The macros will detect if a surrogate code unit is unpaired
- * (lead unit without trail unit or vice versa) and just return the unit itself
- * as the code point.
- * (It is an accidental property of Unicode and UTF-16 that all
- * malformed sequences can be expressed unambiguously with a distinct subrange
- * of Unicode code points.)
- *
- * The regular "safe" macros require that the initial, passed-in string index
- * is within bounds. They only check the index when they read more than one
- * code unit. This is usually done with code similar to the following loop:
- * <pre>while(i<length) {
- * U16_NEXT(s, i, length, c);
- * // use c
- * }</pre>
- *
- * When it is safe to assume that text is well-formed UTF-16
- * (does not contain single, unpaired surrogates), then one can use
- * U16_..._UNSAFE macros.
- * These do not check for proper code unit sequences or truncated text and may
- * yield wrong results or even cause a crash if they are used with "malformed"
- * text.
- * In practice, U16_..._UNSAFE macros will produce slightly less code but
- * should not be faster because the processing is only different when a
- * surrogate code unit is detected, which will be rare.
- *
- * Similarly for UTF-8, there are "safe" macros without a suffix,
- * and U8_..._UNSAFE versions.
- * The performance differences are much larger here because UTF-8 provides so
- * many opportunities for malformed sequences.
- * The unsafe UTF-8 macros are entirely implemented inside the macro definitions
- * and are fast, while the safe UTF-8 macros call functions for all but the
- * trivial (ASCII) cases.
- * (ICU 3.6 optimizes U8_NEXT() and U8_APPEND() to handle most other common
- * characters inline as well.)
- *
- * Unlike with UTF-16, malformed sequences cannot be expressed with distinct
- * code point values (0..U+10ffff). They are indicated with negative values instead.
- *
- * For more information see the ICU User Guide Strings chapter
- * (http://icu-project.org/userguide/strings.html).
- *
- * <em>Usage:</em>
- * ICU coding guidelines for if() statements should be followed when using these macros.
- * Compound statements (curly braces {}) must be used for if-else-while...
- * bodies and all macro statements should be terminated with semicolon.
- *
- * @stable ICU 2.4
- */
-
-#ifndef __UTF_H__
-#define __UTF_H__
-
-#include "unicode/utypes.h"
-/* include the utfXX.h after the following definitions */
-
-/* single-code point definitions -------------------------------------------- */
-
-/**
- * This value is intended for sentinel values for APIs that
- * (take or) return single code points (UChar32).
- * It is outside of the Unicode code point range 0..0x10ffff.
- *
- * For example, a "done" or "error" value in a new API
- * could be indicated with U_SENTINEL.
- *
- * ICU APIs designed before ICU 2.4 usually define service-specific "done"
- * values, mostly 0xffff.
- * Those may need to be distinguished from
- * actual U+ffff text contents by calling functions like
- * CharacterIterator::hasNext() or UnicodeString::length().
- *
- * @return -1
- * @see UChar32
- * @stable ICU 2.4
- */
-#define U_SENTINEL (-1)
-
-/**
- * Is this code point a Unicode noncharacter?
- * @param c 32-bit code point
- * @return TRUE or FALSE
- * @stable ICU 2.4
- */
-#define U_IS_UNICODE_NONCHAR(c) \
- ((c)>=0xfdd0 && \
- ((uint32_t)(c)<=0xfdef || ((c)&0xfffe)==0xfffe) && \
- (uint32_t)(c)<=0x10ffff)
-
-/**
- * Is c a Unicode code point value (0..U+10ffff)
- * that can be assigned a character?
- *
- * Code points that are not characters include:
- * - single surrogate code points (U+d800..U+dfff, 2048 code points)
- * - the last two code points on each plane (U+__fffe and U+__ffff, 34 code points)
- * - U+fdd0..U+fdef (new with Unicode 3.1, 32 code points)
- * - the highest Unicode code point value is U+10ffff
- *
- * This means that all code points below U+d800 are character code points,
- * and that boundary is tested first for performance.
- *
- * @param c 32-bit code point
- * @return TRUE or FALSE
- * @stable ICU 2.4
- */
-#define U_IS_UNICODE_CHAR(c) \
- ((uint32_t)(c)<0xd800 || \
- ((uint32_t)(c)>0xdfff && \
- (uint32_t)(c)<=0x10ffff && \
- !U_IS_UNICODE_NONCHAR(c)))
-
-/**
- * Is this code point a BMP code point (U+0000..U+ffff)?
- * @param c 32-bit code point
- * @return TRUE or FALSE
- * @stable ICU 2.8
- */
-#define U_IS_BMP(c) ((uint32_t)(c)<=0xffff)
-
-/**
- * Is this code point a supplementary code point (U+10000..U+10ffff)?
- * @param c 32-bit code point
- * @return TRUE or FALSE
- * @stable ICU 2.8
- */
-#define U_IS_SUPPLEMENTARY(c) ((uint32_t)((c)-0x10000)<=0xfffff)
-
-/**
- * Is this code point a lead surrogate (U+d800..U+dbff)?
- * @param c 32-bit code point
- * @return TRUE or FALSE
- * @stable ICU 2.4
- */
-#define U_IS_LEAD(c) (((c)&0xfffffc00)==0xd800)
-
-/**
- * Is this code point a trail surrogate (U+dc00..U+dfff)?
- * @param c 32-bit code point
- * @return TRUE or FALSE
- * @stable ICU 2.4
- */
-#define U_IS_TRAIL(c) (((c)&0xfffffc00)==0xdc00)
-
-/**
- * Is this code point a surrogate (U+d800..U+dfff)?
- * @param c 32-bit code point
- * @return TRUE or FALSE
- * @stable ICU 2.4
- */
-#define U_IS_SURROGATE(c) (((c)&0xfffff800)==0xd800)
-
-/**
- * Assuming c is a surrogate code point (U_IS_SURROGATE(c)),
- * is it a lead surrogate?
- * @param c 32-bit code point
- * @return TRUE or FALSE
- * @stable ICU 2.4
- */
-#define U_IS_SURROGATE_LEAD(c) (((c)&0x400)==0)
-
-/* include the utfXX.h ------------------------------------------------------ */
-
-#include "unicode/utf8.h"
-#include "unicode/utf16.h"
-
-/* utf_old.h contains deprecated, pre-ICU 2.4 definitions */
-#include "unicode/utf_old.h"
-
-#endif
http://git-wip-us.apache.org/repos/asf/couchdb/blob/81332b78/apps/couch_collate/platform/osx/icu/unicode/utf16.h
----------------------------------------------------------------------
diff --git a/apps/couch_collate/platform/osx/icu/unicode/utf16.h b/apps/couch_collate/platform/osx/icu/unicode/utf16.h
deleted file mode 100644
index 719bc04..0000000
--- a/apps/couch_collate/platform/osx/icu/unicode/utf16.h
+++ /dev/null
@@ -1,605 +0,0 @@
-/*
-*******************************************************************************
-*
-* Copyright (C) 1999-2007, International Business Machines
-* Corporation and others. All Rights Reserved.
-*
-*******************************************************************************
-* file name: utf16.h
-* encoding: US-ASCII
-* tab size: 8 (not used)
-* indentation:4
-*
-* created on: 1999sep09
-* created by: Markus W. Scherer
-*/
-
-/**
- * \file
- * \brief C API: 16-bit Unicode handling macros
- *
- * This file defines macros to deal with 16-bit Unicode (UTF-16) code units and strings.
- * utf16.h is included by utf.h after unicode/umachine.h
- * and some common definitions.
- *
- * For more information see utf.h and the ICU User Guide Strings chapter
- * (http://icu-project.org/userguide/strings.html).
- *
- * <em>Usage:</em>
- * ICU coding guidelines for if() statements should be followed when using these macros.
- * Compound statements (curly braces {}) must be used for if-else-while...
- * bodies and all macro statements should be terminated with semicolon.
- */
-
-#ifndef __UTF16_H__
-#define __UTF16_H__
-
-/* utf.h must be included first. */
-#ifndef __UTF_H__
-# include "unicode/utf.h"
-#endif
-
-/* single-code point definitions -------------------------------------------- */
-
-/**
- * Does this code unit alone encode a code point (BMP, not a surrogate)?
- * @param c 16-bit code unit
- * @return TRUE or FALSE
- * @stable ICU 2.4
- */
-#define U16_IS_SINGLE(c) !U_IS_SURROGATE(c)
-
-/**
- * Is this code unit a lead surrogate (U+d800..U+dbff)?
- * @param c 16-bit code unit
- * @return TRUE or FALSE
- * @stable ICU 2.4
- */
-#define U16_IS_LEAD(c) (((c)&0xfffffc00)==0xd800)
-
-/**
- * Is this code unit a trail surrogate (U+dc00..U+dfff)?
- * @param c 16-bit code unit
- * @return TRUE or FALSE
- * @stable ICU 2.4
- */
-#define U16_IS_TRAIL(c) (((c)&0xfffffc00)==0xdc00)
-
-/**
- * Is this code unit a surrogate (U+d800..U+dfff)?
- * @param c 16-bit code unit
- * @return TRUE or FALSE
- * @stable ICU 2.4
- */
-#define U16_IS_SURROGATE(c) U_IS_SURROGATE(c)
-
-/**
- * Assuming c is a surrogate code point (U16_IS_SURROGATE(c)),
- * is it a lead surrogate?
- * @param c 16-bit code unit
- * @return TRUE or FALSE
- * @stable ICU 2.4
- */
-#define U16_IS_SURROGATE_LEAD(c) (((c)&0x400)==0)
-
-/**
- * Helper constant for U16_GET_SUPPLEMENTARY.
- * @internal
- */
-#define U16_SURROGATE_OFFSET ((0xd800<<10UL)+0xdc00-0x10000)
-
-/**
- * Get a supplementary code point value (U+10000..U+10ffff)
- * from its lead and trail surrogates.
- * The result is undefined if the input values are not
- * lead and trail surrogates.
- *
- * @param lead lead surrogate (U+d800..U+dbff)
- * @param trail trail surrogate (U+dc00..U+dfff)
- * @return supplementary code point (U+10000..U+10ffff)
- * @stable ICU 2.4
- */
-#define U16_GET_SUPPLEMENTARY(lead, trail) \
- (((UChar32)(lead)<<10UL)+(UChar32)(trail)-U16_SURROGATE_OFFSET)
-
-
-/**
- * Get the lead surrogate (0xd800..0xdbff) for a
- * supplementary code point (0x10000..0x10ffff).
- * @param supplementary 32-bit code point (U+10000..U+10ffff)
- * @return lead surrogate (U+d800..U+dbff) for supplementary
- * @stable ICU 2.4
- */
-#define U16_LEAD(supplementary) (UChar)(((supplementary)>>10)+0xd7c0)
-
-/**
- * Get the trail surrogate (0xdc00..0xdfff) for a
- * supplementary code point (0x10000..0x10ffff).
- * @param supplementary 32-bit code point (U+10000..U+10ffff)
- * @return trail surrogate (U+dc00..U+dfff) for supplementary
- * @stable ICU 2.4
- */
-#define U16_TRAIL(supplementary) (UChar)(((supplementary)&0x3ff)|0xdc00)
-
-/**
- * How many 16-bit code units are used to encode this Unicode code point? (1 or 2)
- * The result is not defined if c is not a Unicode code point (U+0000..U+10ffff).
- * @param c 32-bit code point
- * @return 1 or 2
- * @stable ICU 2.4
- */
-#define U16_LENGTH(c) ((uint32_t)(c)<=0xffff ? 1 : 2)
-
-/**
- * The maximum number of 16-bit code units per Unicode code point (U+0000..U+10ffff).
- * @return 2
- * @stable ICU 2.4
- */
-#define U16_MAX_LENGTH 2
-
-/**
- * Get a code point from a string at a random-access offset,
- * without changing the offset.
- * "Unsafe" macro, assumes well-formed UTF-16.
- *
- * The offset may point to either the lead or trail surrogate unit
- * for a supplementary code point, in which case the macro will read
- * the adjacent matching surrogate as well.
- * The result is undefined if the offset points to a single, unpaired surrogate.
- * Iteration through a string is more efficient with U16_NEXT_UNSAFE or U16_NEXT.
- *
- * @param s const UChar * string
- * @param i string offset
- * @param c output UChar32 variable
- * @see U16_GET
- * @stable ICU 2.4
- */
-#define U16_GET_UNSAFE(s, i, c) { \
- (c)=(s)[i]; \
- if(U16_IS_SURROGATE(c)) { \
- if(U16_IS_SURROGATE_LEAD(c)) { \
- (c)=U16_GET_SUPPLEMENTARY((c), (s)[(i)+1]); \
- } else { \
- (c)=U16_GET_SUPPLEMENTARY((s)[(i)-1], (c)); \
- } \
- } \
-}
-
-/**
- * Get a code point from a string at a random-access offset,
- * without changing the offset.
- * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
- *
- * The offset may point to either the lead or trail surrogate unit
- * for a supplementary code point, in which case the macro will read
- * the adjacent matching surrogate as well.
- * If the offset points to a single, unpaired surrogate, then that itself
- * will be returned as the code point.
- * Iteration through a string is more efficient with U16_NEXT_UNSAFE or U16_NEXT.
- *
- * @param s const UChar * string
- * @param start starting string offset (usually 0)
- * @param i string offset, must be start<=i<length
- * @param length string length
- * @param c output UChar32 variable
- * @see U16_GET_UNSAFE
- * @stable ICU 2.4
- */
-#define U16_GET(s, start, i, length, c) { \
- (c)=(s)[i]; \
- if(U16_IS_SURROGATE(c)) { \
- uint16_t __c2; \
- if(U16_IS_SURROGATE_LEAD(c)) { \
- if((i)+1<(length) && U16_IS_TRAIL(__c2=(s)[(i)+1])) { \
- (c)=U16_GET_SUPPLEMENTARY((c), __c2); \
- } \
- } else { \
- if((i)-1>=(start) && U16_IS_LEAD(__c2=(s)[(i)-1])) { \
- (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \
- } \
- } \
- } \
-}
-
-/* definitions with forward iteration --------------------------------------- */
-
-/**
- * Get a code point from a string at a code point boundary offset,
- * and advance the offset to the next code point boundary.
- * (Post-incrementing forward iteration.)
- * "Unsafe" macro, assumes well-formed UTF-16.
- *
- * The offset may point to the lead surrogate unit
- * for a supplementary code point, in which case the macro will read
- * the following trail surrogate as well.
- * If the offset points to a trail surrogate, then that itself
- * will be returned as the code point.
- * The result is undefined if the offset points to a single, unpaired lead surrogate.
- *
- * @param s const UChar * string
- * @param i string offset
- * @param c output UChar32 variable
- * @see U16_NEXT
- * @stable ICU 2.4
- */
-#define U16_NEXT_UNSAFE(s, i, c) { \
- (c)=(s)[(i)++]; \
- if(U16_IS_LEAD(c)) { \
- (c)=U16_GET_SUPPLEMENTARY((c), (s)[(i)++]); \
- } \
-}
-
-/**
- * Get a code point from a string at a code point boundary offset,
- * and advance the offset to the next code point boundary.
- * (Post-incrementing forward iteration.)
- * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
- *
- * The offset may point to the lead surrogate unit
- * for a supplementary code point, in which case the macro will read
- * the following trail surrogate as well.
- * If the offset points to a trail surrogate or
- * to a single, unpaired lead surrogate, then that itself
- * will be returned as the code point.
- *
- * @param s const UChar * string
- * @param i string offset, must be i<length
- * @param length string length
- * @param c output UChar32 variable
- * @see U16_NEXT_UNSAFE
- * @stable ICU 2.4
- */
-#define U16_NEXT(s, i, length, c) { \
- (c)=(s)[(i)++]; \
- if(U16_IS_LEAD(c)) { \
- uint16_t __c2; \
- if((i)<(length) && U16_IS_TRAIL(__c2=(s)[(i)])) { \
- ++(i); \
- (c)=U16_GET_SUPPLEMENTARY((c), __c2); \
- } \
- } \
-}
-
-/**
- * Append a code point to a string, overwriting 1 or 2 code units.
- * The offset points to the current end of the string contents
- * and is advanced (post-increment).
- * "Unsafe" macro, assumes a valid code point and sufficient space in the string.
- * Otherwise, the result is undefined.
- *
- * @param s const UChar * string buffer
- * @param i string offset
- * @param c code point to append
- * @see U16_APPEND
- * @stable ICU 2.4
- */
-#define U16_APPEND_UNSAFE(s, i, c) { \
- if((uint32_t)(c)<=0xffff) { \
- (s)[(i)++]=(uint16_t)(c); \
- } else { \
- (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \
- (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \
- } \
-}
-
-/**
- * Append a code point to a string, overwriting 1 or 2 code units.
- * The offset points to the current end of the string contents
- * and is advanced (post-increment).
- * "Safe" macro, checks for a valid code point.
- * If a surrogate pair is written, checks for sufficient space in the string.
- * If the code point is not valid or a trail surrogate does not fit,
- * then isError is set to TRUE.
- *
- * @param s const UChar * string buffer
- * @param i string offset, must be i<capacity
- * @param capacity size of the string buffer
- * @param c code point to append
- * @param isError output UBool set to TRUE if an error occurs, otherwise not modified
- * @see U16_APPEND_UNSAFE
- * @stable ICU 2.4
- */
-#define U16_APPEND(s, i, capacity, c, isError) { \
- if((uint32_t)(c)<=0xffff) { \
- (s)[(i)++]=(uint16_t)(c); \
- } else if((uint32_t)(c)<=0x10ffff && (i)+1<(capacity)) { \
- (s)[(i)++]=(uint16_t)(((c)>>10)+0xd7c0); \
- (s)[(i)++]=(uint16_t)(((c)&0x3ff)|0xdc00); \
- } else /* c>0x10ffff or not enough space */ { \
- (isError)=TRUE; \
- } \
-}
-
-/**
- * Advance the string offset from one code point boundary to the next.
- * (Post-incrementing iteration.)
- * "Unsafe" macro, assumes well-formed UTF-16.
- *
- * @param s const UChar * string
- * @param i string offset
- * @see U16_FWD_1
- * @stable ICU 2.4
- */
-#define U16_FWD_1_UNSAFE(s, i) { \
- if(U16_IS_LEAD((s)[(i)++])) { \
- ++(i); \
- } \
-}
-
-/**
- * Advance the string offset from one code point boundary to the next.
- * (Post-incrementing iteration.)
- * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
- *
- * @param s const UChar * string
- * @param i string offset, must be i<length
- * @param length string length
- * @see U16_FWD_1_UNSAFE
- * @stable ICU 2.4
- */
-#define U16_FWD_1(s, i, length) { \
- if(U16_IS_LEAD((s)[(i)++]) && (i)<(length) && U16_IS_TRAIL((s)[i])) { \
- ++(i); \
- } \
-}
-
-/**
- * Advance the string offset from one code point boundary to the n-th next one,
- * i.e., move forward by n code points.
- * (Post-incrementing iteration.)
- * "Unsafe" macro, assumes well-formed UTF-16.
- *
- * @param s const UChar * string
- * @param i string offset
- * @param n number of code points to skip
- * @see U16_FWD_N
- * @stable ICU 2.4
- */
-#define U16_FWD_N_UNSAFE(s, i, n) { \
- int32_t __N=(n); \
- while(__N>0) { \
- U16_FWD_1_UNSAFE(s, i); \
- --__N; \
- } \
-}
-
-/**
- * Advance the string offset from one code point boundary to the n-th next one,
- * i.e., move forward by n code points.
- * (Post-incrementing iteration.)
- * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
- *
- * @param s const UChar * string
- * @param i string offset, must be i<length
- * @param length string length
- * @param n number of code points to skip
- * @see U16_FWD_N_UNSAFE
- * @stable ICU 2.4
- */
-#define U16_FWD_N(s, i, length, n) { \
- int32_t __N=(n); \
- while(__N>0 && (i)<(length)) { \
- U16_FWD_1(s, i, length); \
- --__N; \
- } \
-}
-
-/**
- * Adjust a random-access offset to a code point boundary
- * at the start of a code point.
- * If the offset points to the trail surrogate of a surrogate pair,
- * then the offset is decremented.
- * Otherwise, it is not modified.
- * "Unsafe" macro, assumes well-formed UTF-16.
- *
- * @param s const UChar * string
- * @param i string offset
- * @see U16_SET_CP_START
- * @stable ICU 2.4
- */
-#define U16_SET_CP_START_UNSAFE(s, i) { \
- if(U16_IS_TRAIL((s)[i])) { \
- --(i); \
- } \
-}
-
-/**
- * Adjust a random-access offset to a code point boundary
- * at the start of a code point.
- * If the offset points to the trail surrogate of a surrogate pair,
- * then the offset is decremented.
- * Otherwise, it is not modified.
- * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
- *
- * @param s const UChar * string
- * @param start starting string offset (usually 0)
- * @param i string offset, must be start<=i
- * @see U16_SET_CP_START_UNSAFE
- * @stable ICU 2.4
- */
-#define U16_SET_CP_START(s, start, i) { \
- if(U16_IS_TRAIL((s)[i]) && (i)>(start) && U16_IS_LEAD((s)[(i)-1])) { \
- --(i); \
- } \
-}
-
-/* definitions with backward iteration -------------------------------------- */
-
-/**
- * Move the string offset from one code point boundary to the previous one
- * and get the code point between them.
- * (Pre-decrementing backward iteration.)
- * "Unsafe" macro, assumes well-formed UTF-16.
- *
- * The input offset may be the same as the string length.
- * If the offset is behind a trail surrogate unit
- * for a supplementary code point, then the macro will read
- * the preceding lead surrogate as well.
- * If the offset is behind a lead surrogate, then that itself
- * will be returned as the code point.
- * The result is undefined if the offset is behind a single, unpaired trail surrogate.
- *
- * @param s const UChar * string
- * @param i string offset
- * @param c output UChar32 variable
- * @see U16_PREV
- * @stable ICU 2.4
- */
-#define U16_PREV_UNSAFE(s, i, c) { \
- (c)=(s)[--(i)]; \
- if(U16_IS_TRAIL(c)) { \
- (c)=U16_GET_SUPPLEMENTARY((s)[--(i)], (c)); \
- } \
-}
-
-/**
- * Move the string offset from one code point boundary to the previous one
- * and get the code point between them.
- * (Pre-decrementing backward iteration.)
- * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
- *
- * The input offset may be the same as the string length.
- * If the offset is behind a trail surrogate unit
- * for a supplementary code point, then the macro will read
- * the preceding lead surrogate as well.
- * If the offset is behind a lead surrogate or behind a single, unpaired
- * trail surrogate, then that itself
- * will be returned as the code point.
- *
- * @param s const UChar * string
- * @param start starting string offset (usually 0)
- * @param i string offset, must be start<i
- * @param c output UChar32 variable
- * @see U16_PREV_UNSAFE
- * @stable ICU 2.4
- */
-#define U16_PREV(s, start, i, c) { \
- (c)=(s)[--(i)]; \
- if(U16_IS_TRAIL(c)) { \
- uint16_t __c2; \
- if((i)>(start) && U16_IS_LEAD(__c2=(s)[(i)-1])) { \
- --(i); \
- (c)=U16_GET_SUPPLEMENTARY(__c2, (c)); \
- } \
- } \
-}
-
-/**
- * Move the string offset from one code point boundary to the previous one.
- * (Pre-decrementing backward iteration.)
- * The input offset may be the same as the string length.
- * "Unsafe" macro, assumes well-formed UTF-16.
- *
- * @param s const UChar * string
- * @param i string offset
- * @see U16_BACK_1
- * @stable ICU 2.4
- */
-#define U16_BACK_1_UNSAFE(s, i) { \
- if(U16_IS_TRAIL((s)[--(i)])) { \
- --(i); \
- } \
-}
-
-/**
- * Move the string offset from one code point boundary to the previous one.
- * (Pre-decrementing backward iteration.)
- * The input offset may be the same as the string length.
- * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
- *
- * @param s const UChar * string
- * @param start starting string offset (usually 0)
- * @param i string offset, must be start<i
- * @see U16_BACK_1_UNSAFE
- * @stable ICU 2.4
- */
-#define U16_BACK_1(s, start, i) { \
- if(U16_IS_TRAIL((s)[--(i)]) && (i)>(start) && U16_IS_LEAD((s)[(i)-1])) { \
- --(i); \
- } \
-}
-
-/**
- * Move the string offset from one code point boundary to the n-th one before it,
- * i.e., move backward by n code points.
- * (Pre-decrementing backward iteration.)
- * The input offset may be the same as the string length.
- * "Unsafe" macro, assumes well-formed UTF-16.
- *
- * @param s const UChar * string
- * @param i string offset
- * @param n number of code points to skip
- * @see U16_BACK_N
- * @stable ICU 2.4
- */
-#define U16_BACK_N_UNSAFE(s, i, n) { \
- int32_t __N=(n); \
- while(__N>0) { \
- U16_BACK_1_UNSAFE(s, i); \
- --__N; \
- } \
-}
-
-/**
- * Move the string offset from one code point boundary to the n-th one before it,
- * i.e., move backward by n code points.
- * (Pre-decrementing backward iteration.)
- * The input offset may be the same as the string length.
- * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
- *
- * @param s const UChar * string
- * @param start start of string
- * @param i string offset, must be start<i
- * @param n number of code points to skip
- * @see U16_BACK_N_UNSAFE
- * @stable ICU 2.4
- */
-#define U16_BACK_N(s, start, i, n) { \
- int32_t __N=(n); \
- while(__N>0 && (i)>(start)) { \
- U16_BACK_1(s, start, i); \
- --__N; \
- } \
-}
-
-/**
- * Adjust a random-access offset to a code point boundary after a code point.
- * If the offset is behind the lead surrogate of a surrogate pair,
- * then the offset is incremented.
- * Otherwise, it is not modified.
- * The input offset may be the same as the string length.
- * "Unsafe" macro, assumes well-formed UTF-16.
- *
- * @param s const UChar * string
- * @param i string offset
- * @see U16_SET_CP_LIMIT
- * @stable ICU 2.4
- */
-#define U16_SET_CP_LIMIT_UNSAFE(s, i) { \
- if(U16_IS_LEAD((s)[(i)-1])) { \
- ++(i); \
- } \
-}
-
-/**
- * Adjust a random-access offset to a code point boundary after a code point.
- * If the offset is behind the lead surrogate of a surrogate pair,
- * then the offset is incremented.
- * Otherwise, it is not modified.
- * The input offset may be the same as the string length.
- * "Safe" macro, handles unpaired surrogates and checks for string boundaries.
- *
- * @param s const UChar * string
- * @param start starting string offset (usually 0)
- * @param i string offset, start<=i<=length
- * @param length string length
- * @see U16_SET_CP_LIMIT_UNSAFE
- * @stable ICU 2.4
- */
-#define U16_SET_CP_LIMIT(s, start, i, length) { \
- if((start)<(i) && (i)<(length) && U16_IS_LEAD((s)[(i)-1]) && U16_IS_TRAIL((s)[i])) { \
- ++(i); \
- } \
-}
-
-#endif
http://git-wip-us.apache.org/repos/asf/couchdb/blob/81332b78/apps/couch_collate/platform/osx/icu/unicode/utf32.h
----------------------------------------------------------------------
diff --git a/apps/couch_collate/platform/osx/icu/unicode/utf32.h b/apps/couch_collate/platform/osx/icu/unicode/utf32.h
deleted file mode 100644
index bf63e69..0000000
--- a/apps/couch_collate/platform/osx/icu/unicode/utf32.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
-*******************************************************************************
-*
-* Copyright (C) 1999-2001, International Business Machines
-* Corporation and others. All Rights Reserved.
-*
-*******************************************************************************
-* file name: utf32.h
-* encoding: US-ASCII
-* tab size: 8 (not used)
-* indentation:4
-*
-* created on: 1999sep20
-* created by: Markus W. Scherer
-*/
-/**
- * \file
- * \brief C API: UTF-32 macros
- *
- * This file is obsolete and its contents moved to utf_old.h.
- * See utf_old.h and Jitterbug 2150 and its discussion on the ICU mailing list
- * in September 2002.
- */