ConvertUTF.c File Reference

#include "llvm/Support/ConvertUTF.h"

Include dependency graph for ConvertUTF.c:

Go to the source code of this file.

Macros
#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)
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)
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 }

Macro Definition Documentation

Scalar Replacement of false scalarrepl Scalar Replacement of false   0

Definition at line 64 of file ConvertUTF.c.

#define true   1

Definition at line 65 of file ConvertUTF.c.

Referenced by PerformSELECT_CCCombine().

#define UNI_SUR_HIGH_END   (UTF32)0xDBFF

Definition at line 61 of file ConvertUTF.c.

Referenced by ConvertUTF16toUTF32(), and ConvertUTF16toUTF8().

#define UNI_SUR_HIGH_START   (UTF32)0xD800

Definition at line 60 of file ConvertUTF.c.

Referenced by ConvertUTF16toUTF32(), ConvertUTF16toUTF8(), ConvertUTF32toUTF16(), ConvertUTF32toUTF8(), ConvertUTF8toUTF16(), and ConvertUTF8toUTF32().

#define UNI_SUR_LOW_END   (UTF32)0xDFFF

Definition at line 63 of file ConvertUTF.c.

Referenced by ConvertUTF16toUTF32(), ConvertUTF16toUTF8(), ConvertUTF32toUTF16(), ConvertUTF32toUTF8(), ConvertUTF8toUTF16(), and ConvertUTF8toUTF32().

#define UNI_SUR_LOW_START   (UTF32)0xDC00

Definition at line 62 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 166 of file ConvertUTF.c.

References conversionOK, llvm::LibFunc::fflush, llvm::LibFunc::fprintf, halfBase, halfShift, 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 220 of file ConvertUTF.c.

References conversionOK, firstByteMark, halfBase, halfShift, 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 117 of file ConvertUTF.c.

References conversionOK, halfBase, halfMask, halfShift, 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 290 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 421 of file ConvertUTF.c.

References conversionOK, halfBase, halfMask, halfShift, 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
	)

Definition at line 494 of file ConvertUTF.c.

References conversionOK, 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 llvm::sys::unicode::columnWidthUTF8(), and llvm::ConvertUTF8toWide().

unsigned getNumBytesForUTF8

(

UTF8

first

)

Definition at line 399 of file ConvertUTF.c.

References trailingBytesForUTF8.

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

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

static

Definition at line 354 of file ConvertUTF.c.

Referenced by ConvertUTF8toUTF16(), ConvertUTF8toUTF32(), isLegalUTF8Sequence(), and isLegalUTF8String().

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

Definition at line 385 of file ConvertUTF.c.

References isLegalUTF8(), and trailingBytesForUTF8.

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

Definition at line 409 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 102 of file ConvertUTF.c.

Referenced by ConvertUTF16toUTF8(), and ConvertUTF32toUTF8().

const UTF32 halfBase = 0x0010000UL

static

Definition at line 57 of file ConvertUTF.c.

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

const UTF32 halfMask = 0x3FFUL

static

Definition at line 58 of file ConvertUTF.c.

Referenced by ConvertUTF32toUTF16(), and ConvertUTF8toUTF16().

const int halfShift = 10

static

Definition at line 55 of file ConvertUTF.c.

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

const UTF32 offsetsFromUTF8[6]

static

Initial value:

= { 0x00000000UL, 0x00003080UL, 0x000E2080UL, 
                     0x03C82080UL, 0xFA082080UL, 0x82082080UL }

Definition at line 92 of file ConvertUTF.c.

Referenced by ConvertUTF8toUTF16(), and ConvertUTF8toUTF32().

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 76 of file ConvertUTF.c.

Referenced by ConvertUTF8toUTF16(), ConvertUTF8toUTF32(), getNumBytesForUTF8(), isLegalUTF8Sequence(), and isLegalUTF8String().