LLVM API Documentation

Defines | Functions | Variables
ConvertUTF.c File Reference
#include "llvm/Support/ConvertUTF.h"
#include <assert.h>
Include dependency graph for ConvertUTF.c:

Go to the source code of this file.

Defines

#define UNI_SUR_HIGH_START   (UTF32)0xD800
#define UNI_SUR_HIGH_END   (UTF32)0xDBFF
#define UNI_SUR_LOW_START   (UTF32)0xDC00
#define UNI_SUR_LOW_END   (UTF32)0xDFFF
#define false   0
#define true   1

Functions

ConversionResult ConvertUTF32toUTF16 (const UTF32 **sourceStart, const UTF32 *sourceEnd, UTF16 **targetStart, UTF16 *targetEnd, ConversionFlags flags)
ConversionResult ConvertUTF16toUTF32 (const UTF16 **sourceStart, const UTF16 *sourceEnd, UTF32 **targetStart, UTF32 *targetEnd, ConversionFlags flags)
ConversionResult ConvertUTF16toUTF8 (const UTF16 **sourceStart, const UTF16 *sourceEnd, UTF8 **targetStart, UTF8 *targetEnd, ConversionFlags flags)
ConversionResult ConvertUTF32toUTF8 (const UTF32 **sourceStart, const UTF32 *sourceEnd, UTF8 **targetStart, UTF8 *targetEnd, ConversionFlags flags)
static Boolean isLegalUTF8 (const UTF8 *source, int length)
Boolean isLegalUTF8Sequence (const UTF8 *source, const UTF8 *sourceEnd)
static unsigned findMaximalSubpartOfIllFormedUTF8Sequence (const UTF8 *source, const UTF8 *sourceEnd)
unsigned getNumBytesForUTF8 (UTF8 first)
Boolean isLegalUTF8String (const UTF8 **source, const UTF8 *sourceEnd)
ConversionResult ConvertUTF8toUTF16 (const UTF8 **sourceStart, const UTF8 *sourceEnd, UTF16 **targetStart, UTF16 *targetEnd, ConversionFlags flags)
static ConversionResult ConvertUTF8toUTF32Impl (const UTF8 **sourceStart, const UTF8 *sourceEnd, UTF32 **targetStart, UTF32 *targetEnd, ConversionFlags flags, Boolean InputIsPartial)
ConversionResult ConvertUTF8toUTF32Partial (const UTF8 **sourceStart, const UTF8 *sourceEnd, UTF32 **targetStart, UTF32 *targetEnd, ConversionFlags flags)
ConversionResult ConvertUTF8toUTF32 (const UTF8 **sourceStart, const UTF8 *sourceEnd, UTF32 **targetStart, UTF32 *targetEnd, ConversionFlags flags)

Variables

static const int halfShift = 10
static const UTF32 halfBase = 0x0010000UL
static const UTF32 halfMask = 0x3FFUL
static const char trailingBytesForUTF8 [256]
static const UTF32 offsetsFromUTF8 [6]
static const UTF8 firstByteMark [7] = { 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC }

Define Documentation

Scalar Replacement of false scalarrepl Scalar Replacement of false   0

Definition at line 65 of file ConvertUTF.c.

#define true   1

Definition at line 66 of file ConvertUTF.c.

Referenced by PerformSELECT_CCCombine().

#define UNI_SUR_HIGH_END   (UTF32)0xDBFF

Definition at line 62 of file ConvertUTF.c.

Referenced by ConvertUTF16toUTF32(), and ConvertUTF16toUTF8().

#define UNI_SUR_HIGH_START   (UTF32)0xD800

Definition at line 61 of file ConvertUTF.c.

Referenced by ConvertUTF16toUTF32(), ConvertUTF16toUTF8(), ConvertUTF32toUTF16(), ConvertUTF32toUTF8(), ConvertUTF8toUTF16(), and ConvertUTF8toUTF32Impl().

#define UNI_SUR_LOW_END   (UTF32)0xDFFF

Definition at line 64 of file ConvertUTF.c.

Referenced by ConvertUTF16toUTF32(), ConvertUTF16toUTF8(), ConvertUTF32toUTF16(), ConvertUTF32toUTF8(), ConvertUTF8toUTF16(), and ConvertUTF8toUTF32Impl().

#define UNI_SUR_LOW_START   (UTF32)0xDC00

Definition at line 63 of file ConvertUTF.c.

Referenced by ConvertUTF16toUTF32(), ConvertUTF16toUTF8(), ConvertUTF32toUTF16(), and ConvertUTF8toUTF16().

Function Documentation

ConversionResult ConvertUTF16toUTF32 ( const UTF16 **  sourceStart,
const UTF16 *  sourceEnd,
UTF32 **  targetStart,
UTF32 *  targetEnd,
ConversionFlags  flags 
)

Definition at line 167 of file ConvertUTF.c.

References conversionOK, llvm::LibFunc::fflush, llvm::LibFunc::fprintf, halfBase, sourceExhausted, sourceIllegal, strictConversion, targetExhausted, UNI_SUR_HIGH_END, UNI_SUR_HIGH_START, UNI_SUR_LOW_END, and UNI_SUR_LOW_START.

ConversionResult ConvertUTF16toUTF8 ( const UTF16 **  sourceStart,
const UTF16 *  sourceEnd,
UTF8 **  targetStart,
UTF8 *  targetEnd,
ConversionFlags  flags 
)

Definition at line 221 of file ConvertUTF.c.

References conversionOK, firstByteMark, halfBase, sourceExhausted, sourceIllegal, strictConversion, targetExhausted, UNI_REPLACEMENT_CHAR, UNI_SUR_HIGH_END, UNI_SUR_HIGH_START, UNI_SUR_LOW_END, and UNI_SUR_LOW_START.

Referenced by llvm::convertUTF16ToUTF8String().

ConversionResult ConvertUTF32toUTF16 ( const UTF32 **  sourceStart,
const UTF32 *  sourceEnd,
UTF16 **  targetStart,
UTF16 *  targetEnd,
ConversionFlags  flags 
)

Definition at line 118 of file ConvertUTF.c.

References conversionOK, halfBase, halfMask, sourceIllegal, strictConversion, targetExhausted, UNI_MAX_BMP, UNI_MAX_LEGAL_UTF32, UNI_REPLACEMENT_CHAR, UNI_SUR_HIGH_START, UNI_SUR_LOW_END, and UNI_SUR_LOW_START.

ConversionResult ConvertUTF32toUTF8 ( const UTF32 **  sourceStart,
const UTF32 *  sourceEnd,
UTF8 **  targetStart,
UTF8 *  targetEnd,
ConversionFlags  flags 
)

Definition at line 291 of file ConvertUTF.c.

References conversionOK, firstByteMark, sourceIllegal, strictConversion, targetExhausted, UNI_MAX_LEGAL_UTF32, UNI_REPLACEMENT_CHAR, UNI_SUR_HIGH_START, and UNI_SUR_LOW_END.

Referenced by llvm::ConvertCodePointToUTF8().

ConversionResult ConvertUTF8toUTF16 ( const UTF8 **  sourceStart,
const UTF8 *  sourceEnd,
UTF16 **  targetStart,
UTF16 *  targetEnd,
ConversionFlags  flags 
)

Definition at line 515 of file ConvertUTF.c.

References conversionOK, halfBase, halfMask, isLegalUTF8(), offsetsFromUTF8, sourceExhausted, sourceIllegal, strictConversion, targetExhausted, trailingBytesForUTF8, UNI_MAX_BMP, UNI_MAX_UTF16, UNI_REPLACEMENT_CHAR, UNI_SUR_HIGH_START, UNI_SUR_LOW_END, and UNI_SUR_LOW_START.

Referenced by llvm::ConvertUTF8toWide().

ConversionResult ConvertUTF8toUTF32 ( const UTF8 **  sourceStart,
const UTF8 *  sourceEnd,
UTF32 **  targetStart,
UTF32 *  targetEnd,
ConversionFlags  flags 
)

Convert a partial UTF8 sequence to UTF32. If the sequence ends in an incomplete code unit sequence, returns sourceIllegal.

Definition at line 684 of file ConvertUTF.c.

References ConvertUTF8toUTF32Impl().

Referenced by llvm::sys::unicode::columnWidthUTF8(), and llvm::ConvertUTF8toWide().

static ConversionResult ConvertUTF8toUTF32Impl ( const UTF8 **  sourceStart,
const UTF8 *  sourceEnd,
UTF32 **  targetStart,
UTF32 *  targetEnd,
ConversionFlags  flags,
Boolean  InputIsPartial 
) [static]

Definition at line 588 of file ConvertUTF.c.

References conversionOK, findMaximalSubpartOfIllFormedUTF8Sequence(), isLegalUTF8(), offsetsFromUTF8, sourceExhausted, sourceIllegal, strictConversion, targetExhausted, trailingBytesForUTF8, UNI_MAX_LEGAL_UTF32, UNI_REPLACEMENT_CHAR, UNI_SUR_HIGH_START, and UNI_SUR_LOW_END.

Referenced by ConvertUTF8toUTF32(), and ConvertUTF8toUTF32Partial().

ConversionResult ConvertUTF8toUTF32Partial ( const UTF8 **  sourceStart,
const UTF8 *  sourceEnd,
UTF32 **  targetStart,
UTF32 *  targetEnd,
ConversionFlags  flags 
)

Convert a partial UTF8 sequence to UTF32. If the sequence ends in an incomplete code unit sequence, returns sourceExhausted.

Definition at line 675 of file ConvertUTF.c.

References ConvertUTF8toUTF32Impl().

static unsigned findMaximalSubpartOfIllFormedUTF8Sequence ( const UTF8 *  source,
const UTF8 *  sourceEnd 
) [static]

Definition at line 397 of file ConvertUTF.c.

References isLegalUTF8Sequence().

Referenced by ConvertUTF8toUTF32Impl().

unsigned getNumBytesForUTF8 ( UTF8  first)

Definition at line 493 of file ConvertUTF.c.

References trailingBytesForUTF8.

Referenced by llvm::sys::unicode::columnWidthUTF8().

static Boolean isLegalUTF8 ( const UTF8 *  source,
int  length 
) [static]

Definition at line 355 of file ConvertUTF.c.

Referenced by ConvertUTF8toUTF16(), ConvertUTF8toUTF32Impl(), isLegalUTF8Sequence(), and isLegalUTF8String().

Boolean isLegalUTF8Sequence ( const UTF8 *  source,
const UTF8 *  sourceEnd 
)

Definition at line 386 of file ConvertUTF.c.

References isLegalUTF8(), and trailingBytesForUTF8.

Referenced by findMaximalSubpartOfIllFormedUTF8Sequence().

Boolean isLegalUTF8String ( const UTF8 **  source,
const UTF8 *  sourceEnd 
)

Definition at line 503 of file ConvertUTF.c.

References isLegalUTF8(), and trailingBytesForUTF8.

Referenced by llvm::ConvertUTF8toWide().

Variable Documentation

const UTF8 firstByteMark[7] = { 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC } [static]

Definition at line 103 of file ConvertUTF.c.

Referenced by ConvertUTF16toUTF8(), and ConvertUTF32toUTF8().

const UTF32 halfBase = 0x0010000UL [static]

Definition at line 58 of file ConvertUTF.c.

Referenced by ConvertUTF16toUTF32(), ConvertUTF16toUTF8(), ConvertUTF32toUTF16(), and ConvertUTF8toUTF16().

const UTF32 halfMask = 0x3FFUL [static]

Definition at line 59 of file ConvertUTF.c.

Referenced by ConvertUTF32toUTF16(), and ConvertUTF8toUTF16().

const int halfShift = 10 [static]

Definition at line 56 of file ConvertUTF.c.

const UTF32 offsetsFromUTF8[6] [static]
Initial value:
 { 0x00000000UL, 0x00003080UL, 0x000E2080UL, 
                     0x03C82080UL, 0xFA082080UL, 0x82082080UL }

Definition at line 93 of file ConvertUTF.c.

Referenced by ConvertUTF8toUTF16(), and ConvertUTF8toUTF32Impl().

const char trailingBytesForUTF8[256] [static]
Initial value:
 {
    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
    0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
    1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
    2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 3,3,3,3,3,3,3,3,4,4,4,4,5,5,5,5
}

Definition at line 77 of file ConvertUTF.c.

Referenced by ConvertUTF8toUTF16(), ConvertUTF8toUTF32Impl(), getNumBytesForUTF8(), isLegalUTF8Sequence(), and isLegalUTF8String().

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