#ifndef UBIDIIMP_H
#define UBIDIIMP_H
#ifdef U_COMMON_IMPLEMENTATION
#include "unicode/utypes.h"
#include "unicode/uchar.h"
typedef uint8_t DirProp;
typedef uint32_t Flags;
enum {
L= U_LEFT_TO_RIGHT,
R= U_RIGHT_TO_LEFT,
EN= U_EUROPEAN_NUMBER,
ES= U_EUROPEAN_NUMBER_SEPARATOR,
ET= U_EUROPEAN_NUMBER_TERMINATOR,
AN= U_ARABIC_NUMBER,
CS= U_COMMON_NUMBER_SEPARATOR,
B= U_BLOCK_SEPARATOR,
S= U_SEGMENT_SEPARATOR,
WS= U_WHITE_SPACE_NEUTRAL,
ON= U_OTHER_NEUTRAL,
LRE=U_LEFT_TO_RIGHT_EMBEDDING,
LRO=U_LEFT_TO_RIGHT_OVERRIDE,
AL= U_RIGHT_TO_LEFT_ARABIC,
RLE=U_RIGHT_TO_LEFT_EMBEDDING,
RLO=U_RIGHT_TO_LEFT_OVERRIDE,
PDF=U_POP_DIRECTIONAL_FORMAT,
NSM=U_DIR_NON_SPACING_MARK,
BN= U_BOUNDARY_NEUTRAL,
dirPropCount
};
#define DIRPROP_FLAG(dir) (1UL<<(dir))
#define DIRPROP_FLAG_MULTI_RUNS (1UL<<31)
#define MASK_LTR (DIRPROP_FLAG(L)|DIRPROP_FLAG(EN)|DIRPROP_FLAG(AN)|DIRPROP_FLAG(LRE)|DIRPROP_FLAG(LRO))
#define MASK_RTL (DIRPROP_FLAG(R)|DIRPROP_FLAG(AL)|DIRPROP_FLAG(RLE)|DIRPROP_FLAG(RLO))
#define MASK_LRX (DIRPROP_FLAG(LRE)|DIRPROP_FLAG(LRO))
#define MASK_RLX (DIRPROP_FLAG(RLE)|DIRPROP_FLAG(RLO))
#define MASK_OVERRIDE (DIRPROP_FLAG(LRO)|DIRPROP_FLAG(RLO))
#define MASK_EXPLICIT (MASK_LRX|MASK_RLX|DIRPROP_FLAG(PDF))
#define MASK_BN_EXPLICIT (DIRPROP_FLAG(BN)|MASK_EXPLICIT)
#define MASK_B_S (DIRPROP_FLAG(B)|DIRPROP_FLAG(S))
#define MASK_WS (MASK_B_S|DIRPROP_FLAG(WS)|MASK_BN_EXPLICIT)
#define MASK_N (DIRPROP_FLAG(ON)|MASK_WS)
#define MASK_ET_NSM_BN (DIRPROP_FLAG(ET)|DIRPROP_FLAG(NSM)|MASK_BN_EXPLICIT)
#define MASK_POSSIBLE_N (DIRPROP_FLAG(CS)|DIRPROP_FLAG(ES)|DIRPROP_FLAG(ET)|MASK_N)
#define MASK_EMBEDDING (DIRPROP_FLAG(NSM)|MASK_POSSIBLE_N)
#define GET_LR_FROM_LEVEL(level) ((DirProp)((level)&1))
#define IS_DEFAULT_LEVEL(level) (((level)&0xfe)==0xfe)
typedef struct Run {
int32_t logicalStart,
visualLimit;
} Run;
#define INDEX_ODD_BIT (1UL<<31)
#define MAKE_INDEX_ODD_PAIR(index, level) (index|((int32_t)level<<31))
#define ADD_ODD_BIT_FROM_LEVEL(x, level) ((x)|=((int32_t)level<<31))
#define REMOVE_ODD_BIT(x) ((x)&=~INDEX_ODD_BIT)
#define GET_INDEX(x) (x&~INDEX_ODD_BIT)
#define GET_ODD_BIT(x) ((uint32_t)x>>31)
#define IS_ODD_RUN(x) ((x&INDEX_ODD_BIT)!=0)
#define IS_EVEN_RUN(x) ((x&INDEX_ODD_BIT)==0)
U_CFUNC UBool
ubidi_getRuns(UBiDi *pBiDi);
struct UBiDi {
const UChar *text;
int32_t length;
int32_t dirPropsSize, levelsSize, runsSize;
DirProp *dirPropsMemory;
UBiDiLevel *levelsMemory;
Run *runsMemory;
UBool mayAllocateText, mayAllocateRuns;
const DirProp *dirProps;
UBiDiLevel *levels;
UBool isInverse;
UBiDiLevel paraLevel;
UBiDiDirection direction;
Flags flags;
int32_t trailingWSStart;
int32_t runCount;
Run *runs;
Run simpleRuns[1];
};
U_CFUNC UBool
ubidi_getMemory(void **pMemory, int32_t *pSize, UBool mayAllocate, int32_t sizeNeeded);
#define getDirPropsMemory(pBiDi, length) \
ubidi_getMemory((void **)&(pBiDi)->dirPropsMemory, &(pBiDi)->dirPropsSize, \
(pBiDi)->mayAllocateText, (length))
#define getLevelsMemory(pBiDi, length) \
ubidi_getMemory((void **)&(pBiDi)->levelsMemory, &(pBiDi)->levelsSize, \
(pBiDi)->mayAllocateText, (length))
#define getRunsMemory(pBiDi, length) \
ubidi_getMemory((void **)&(pBiDi)->runsMemory, &(pBiDi)->runsSize, \
(pBiDi)->mayAllocateRuns, (length)*sizeof(Run))
#define getInitialDirPropsMemory(pBiDi, length) \
ubidi_getMemory((void **)&(pBiDi)->dirPropsMemory, &(pBiDi)->dirPropsSize, \
TRUE, (length))
#define getInitialLevelsMemory(pBiDi, length) \
ubidi_getMemory((void **)&(pBiDi)->levelsMemory, &(pBiDi)->levelsSize, \
TRUE, (length))
#define getInitialRunsMemory(pBiDi, length) \
ubidi_getMemory((void **)&(pBiDi)->runsMemory, &(pBiDi)->runsSize, \
TRUE, (length)*sizeof(Run))
#endif
#endif