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"Smart pointer" class, closes a UBiDi via ubidi_close().

C++ API: "Smart pointers" for use with and in ICU4C C++ code.

#define U_DEFINE_LOCAL_OPEN_POINTER(LocalPointerClassName, Type, closeFunction)

"Smart pointer" definition macro, deletes objects via the closeFunction.

#define U_CALLCONV

Similar to U_CDECL_BEGIN/U_CDECL_END, this qualifier is necessary in callback function typedefs to ma...

U_CAPI UBiDi * ubidi_openSized(int32_t maxLength, int32_t maxRunCount, UErrorCode *pErrorCode)

Allocate a UBiDi structure with preallocated memory for internal structures.

U_CAPI void ubidi_getLogicalRun(const UBiDi *pBiDi, int32_t logicalPosition, int32_t *pLogicalLimit, UBiDiLevel *pLevel)

Get a logical run.

U_CAPI int32_t ubidi_countParagraphs(UBiDi *pBiDi)

Get the number of paragraphs.

U_CAPI int32_t ubidi_countRuns(UBiDi *pBiDi, UErrorCode *pErrorCode)

Get the number of runs.

U_CAPI void ubidi_reorderVisual(const UBiDiLevel *levels, int32_t length, int32_t *indexMap)

This is a convenience function that does not use a UBiDi object.

U_CAPI int32_t ubidi_getLength(const UBiDi *pBiDi)

Get the length of the text.

U_CAPI UCharDirection ubidi_getCustomizedClass(UBiDi *pBiDi, UChar32 c)

Retrieve the Bidi class for a given code point.

UBiDiReorderingOption

UBiDiReorderingOption values indicate which options are specified to affect the Bidi algorithm.

@ UBIDI_OPTION_INSERT_MARKS

option bit for ubidi_setReorderingOptions: insert Bidi marks (LRM or RLM) when needed to ensure corre...

@ UBIDI_OPTION_STREAMING

option bit for ubidi_setReorderingOptions: process the output as part of a stream to be continued

@ UBIDI_OPTION_DEFAULT

option value for ubidi_setReorderingOptions: disable all the options which can be set with this funct...

@ UBIDI_OPTION_REMOVE_CONTROLS

option bit for ubidi_setReorderingOptions: remove Bidi control characters

U_CAPI int32_t ubidi_getProcessedLength(const UBiDi *pBiDi)

Get the length of the source text processed by the last call to ubidi_setPara().

U_CAPI UBiDiDirection ubidi_getBaseDirection(const UChar *text, int32_t length)

Gets the base direction of the text provided according to the Unicode Bidirectional Algorithm.

U_CAPI void ubidi_setLine(const UBiDi *pParaBiDi, int32_t start, int32_t limit, UBiDi *pLineBiDi, UErrorCode *pErrorCode)

ubidi_setLine() sets a UBiDi to contain the reordering information, especially the resolved levels,...

U_CAPI void ubidi_close(UBiDi *pBiDi)

ubidi_close() must be called to free the memory associated with a UBiDi object.

UBiDiDirection

UBiDiDirection values indicate the text direction.

@ UBIDI_LTR

Left-to-right text.

@ UBIDI_NEUTRAL

No strongly directional text.

@ UBIDI_MIXED

Mixed-directional text.

@ UBIDI_RTL

Right-to-left text.

U_CAPI void ubidi_setClassCallback(UBiDi *pBiDi, UBiDiClassCallback *newFn, const void *newContext, UBiDiClassCallback **oldFn, const void **oldContext, UErrorCode *pErrorCode)

Set the callback function and callback data used by the UBA implementation for Bidi class determinati...

U_CAPI void ubidi_setReorderingOptions(UBiDi *pBiDi, uint32_t reorderingOptions)

Specify which of the reordering options should be applied during Bidi transformations.

U_CAPI int32_t ubidi_writeReordered(UBiDi *pBiDi, UChar *dest, int32_t destSize, uint16_t options, UErrorCode *pErrorCode)

Take a UBiDi object containing the reordering information for a piece of text (one or more paragraphs...

U_CAPI int32_t ubidi_writeReverse(const UChar *src, int32_t srcLength, UChar *dest, int32_t destSize, uint16_t options, UErrorCode *pErrorCode)

Reverse a Right-To-Left run of Unicode text.

UCharDirection UBiDiClassCallback(const void *context, UChar32 c)

Callback type declaration for overriding default Bidi class values with custom ones.

U_CAPI void ubidi_getParagraphByIndex(const UBiDi *pBiDi, int32_t paraIndex, int32_t *pParaStart, int32_t *pParaLimit, UBiDiLevel *pParaLevel, UErrorCode *pErrorCode)

Get a paragraph, given the index of this paragraph.

UBiDiReorderingMode

UBiDiReorderingMode values indicate which variant of the Bidi algorithm to use.

@ UBIDI_REORDER_INVERSE_FOR_NUMBERS_SPECIAL

Inverse Bidi (Visual to Logical) algorithm for the UBIDI_REORDER_NUMBERS_SPECIAL Bidi algorithm.

@ UBIDI_REORDER_GROUP_NUMBERS_WITH_R

Logical to Visual algorithm grouping numbers with adjacent R characters (reversible algorithm).

@ UBIDI_REORDER_RUNS_ONLY

Reorder runs only to transform a Logical LTR string to the Logical RTL string with the same display,...

@ UBIDI_REORDER_NUMBERS_SPECIAL

Logical to Visual algorithm which handles numbers in a way which mimics the behavior of Windows XP.

@ UBIDI_REORDER_INVERSE_NUMBERS_AS_L

Visual to Logical algorithm which handles numbers like L (same algorithm as selected by ubidi_setInve...

@ UBIDI_REORDER_INVERSE_LIKE_DIRECT

Visual to Logical algorithm equivalent to the regular Logical to Visual algorithm.

@ UBIDI_REORDER_DEFAULT

Regular Logical to Visual Bidi algorithm according to Unicode.

@ UBIDI_REORDER_COUNT

Number of values for reordering mode.

U_CAPI UBool ubidi_isInverse(UBiDi *pBiDi)

Is this Bidi object set to perform the inverse Bidi algorithm?

U_CAPI void ubidi_reorderLogical(const UBiDiLevel *levels, int32_t length, int32_t *indexMap)

This is a convenience function that does not use a UBiDi object.

U_CAPI void ubidi_setPara(UBiDi *pBiDi, const UChar *text, int32_t length, UBiDiLevel paraLevel, UBiDiLevel *embeddingLevels, UErrorCode *pErrorCode)

Perform the Unicode Bidi algorithm.

U_CAPI void ubidi_getVisualMap(UBiDi *pBiDi, int32_t *indexMap, UErrorCode *pErrorCode)

Get a visual-to-logical index map (array) for the characters in the UBiDi (paragraph or line) object.

U_CAPI int32_t ubidi_getParagraph(const UBiDi *pBiDi, int32_t charIndex, int32_t *pParaStart, int32_t *pParaLimit, UBiDiLevel *pParaLevel, UErrorCode *pErrorCode)

Get a paragraph, given a position within the text.

U_CAPI uint32_t ubidi_getReorderingOptions(UBiDi *pBiDi)

What are the reordering options applied to a given Bidi object?

U_CAPI UBiDiDirection ubidi_getDirection(const UBiDi *pBiDi)

Get the directionality of the text.

U_CAPI void ubidi_getClassCallback(UBiDi *pBiDi, UBiDiClassCallback **fn, const void **context)

Get the current callback function used for Bidi class determination.

uint8_t UBiDiLevel

UBiDiLevel is the type of the level values in this Bidi implementation.

U_CAPI void ubidi_orderParagraphsLTR(UBiDi *pBiDi, UBool orderParagraphsLTR)

Specify whether block separators must be allocated level zero, so that successive paragraphs will pro...

U_CAPI int32_t ubidi_getResultLength(const UBiDi *pBiDi)

Get the length of the reordered text resulting from the last call to ubidi_setPara().

U_CAPI void ubidi_setContext(UBiDi *pBiDi, const UChar *prologue, int32_t proLength, const UChar *epilogue, int32_t epiLength, UErrorCode *pErrorCode)

Set the context before a call to ubidi_setPara().

U_CAPI int32_t ubidi_getVisualIndex(UBiDi *pBiDi, int32_t logicalIndex, UErrorCode *pErrorCode)

Get the visual position from a logical text position.

U_CAPI UBiDiLevel ubidi_getParaLevel(const UBiDi *pBiDi)

Get the paragraph level of the text.

U_CAPI UBiDiLevel ubidi_getLevelAt(const UBiDi *pBiDi, int32_t charIndex)

Get the level for one character.

U_CAPI UBool ubidi_isOrderParagraphsLTR(UBiDi *pBiDi)

Is this Bidi object set to allocate level 0 to block separators so that successive paragraphs progres...

U_CAPI int32_t ubidi_getLogicalIndex(UBiDi *pBiDi, int32_t visualIndex, UErrorCode *pErrorCode)

Get the logical text position from a visual position.

U_CAPI void ubidi_invertMap(const int32_t *srcMap, int32_t *destMap, int32_t length)

Invert an index map.

U_CAPI void ubidi_setInverse(UBiDi *pBiDi, UBool isInverse)

Modify the operation of the Bidi algorithm such that it approximates an "inverse Bidi" algorithm.

U_CAPI UBiDiDirection ubidi_getVisualRun(UBiDi *pBiDi, int32_t runIndex, int32_t *pLogicalStart, int32_t *pLength)

Get one run's logical start, length, and directionality, which can be 0 for LTR or 1 for RTL.

U_CAPI void ubidi_getLogicalMap(UBiDi *pBiDi, int32_t *indexMap, UErrorCode *pErrorCode)

Get a logical-to-visual index map (array) for the characters in the UBiDi (paragraph or line) object.

struct UBiDi UBiDi

U_CAPI UBiDi * ubidi_open(void)

Allocate a UBiDi structure.

U_CAPI const UChar * ubidi_getText(const UBiDi *pBiDi)

Get the pointer to the text.

U_CAPI UBiDiReorderingMode ubidi_getReorderingMode(UBiDi *pBiDi)

What is the requested reordering mode for a given Bidi object?

U_CAPI const UBiDiLevel * ubidi_getLevels(UBiDi *pBiDi, UErrorCode *pErrorCode)

Get an array of levels for each character.

U_CAPI void ubidi_setReorderingMode(UBiDi *pBiDi, UBiDiReorderingMode reorderingMode)

Modify the operation of the Bidi algorithm such that it implements some variant to the basic Bidi alg...

C API: Unicode Properties.

UCharDirection

This specifies the language directional property of a character set.

int32_t UChar32

Define UChar32 as a type for single Unicode code points.

#define U_CDECL_END

This is used to end a declaration of a library private ICU C API.

int8_t UBool

The ICU boolean type, a signed-byte integer.

#define U_CAPI

This is used to declare a function as a public ICU C API.

char16_t UChar

The base type for UTF-16 code units and pointers.

#define U_CDECL_BEGIN

This is used to begin a declaration of a library private ICU C API.

Basic definitions for ICU, for both C and C++ APIs.

UErrorCode

Standard ICU4C error code type, a substitute for exceptions.