ICU-13203 CaseMap UTF-8 add StringPiece->ByteSink overloads; change implementation to that and change array->array versions into wrappers

X-SVN-Rev: 40425
This commit is contained in:
Markus Scherer 2017-09-18 21:45:11 +00:00
parent 8c1d9ad0d1
commit 68ef77118b
13 changed files with 590 additions and 448 deletions

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@ -89,7 +89,7 @@ ucnv_ext.o ucnvmbcs.o ucnv2022.o ucnvhz.o ucnv_lmb.o ucnvisci.o ucnvdisp.o ucnv_
resource.o uresbund.o ures_cnv.o uresdata.o resbund.o resbund_cnv.o \
ucurr.o \
messagepattern.o ucat.o locmap.o uloc.o locid.o locutil.o locavailable.o locdispnames.o locdspnm.o loclikely.o locresdata.o \
bytestream.o stringpiece.o \
bytestream.o stringpiece.o bytesinkutil.o \
stringtriebuilder.o bytestriebuilder.o \
bytestrie.o bytestrieiterator.o \
ucharstrie.o ucharstriebuilder.o ucharstrieiterator.o \

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@ -0,0 +1,123 @@
// © 2017 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
// bytesinkutil.cpp
// created: 2017sep14 Markus W. Scherer
#include "unicode/utypes.h"
#include "unicode/bytestream.h"
#include "unicode/edits.h"
#include "unicode/stringoptions.h"
#include "unicode/utf8.h"
#include "unicode/utf16.h"
#include "bytesinkutil.h"
#include "cmemory.h"
#include "uassert.h"
U_NAMESPACE_BEGIN
UBool
ByteSinkUtil::appendChange(int32_t length, const char16_t *s16, int32_t s16Length,
ByteSink &sink, Edits *edits, UErrorCode &errorCode) {
if (U_FAILURE(errorCode)) { return FALSE; }
char scratch[200];
int32_t s8Length = 0;
for (int32_t i = 0; i < s16Length;) {
int32_t capacity;
int32_t desiredCapacity = s16Length - i;
if (desiredCapacity < (INT32_MAX / 3)) {
desiredCapacity *= 3; // max 3 UTF-8 bytes per UTF-16 code unit
} else if (desiredCapacity < (INT32_MAX / 2)) {
desiredCapacity *= 2;
} else {
desiredCapacity = INT32_MAX;
}
char *buffer = sink.GetAppendBuffer(U8_MAX_LENGTH, desiredCapacity,
scratch, UPRV_LENGTHOF(scratch), &capacity);
capacity -= U8_MAX_LENGTH - 1;
int32_t j = 0;
for (; i < s16Length && j < capacity;) {
UChar32 c;
U16_NEXT_UNSAFE(s16, i, c);
U8_APPEND_UNSAFE(buffer, j, c);
}
if (j > (INT32_MAX - s8Length)) {
errorCode = U_INDEX_OUTOFBOUNDS_ERROR;
return FALSE;
}
sink.Append(buffer, j);
s8Length += j;
}
if (edits != nullptr) {
edits->addReplace(length, s8Length);
}
return TRUE;
}
UBool
ByteSinkUtil::appendChange(const uint8_t *s, const uint8_t *limit,
const char16_t *s16, int32_t s16Length,
ByteSink &sink, Edits *edits, UErrorCode &errorCode) {
if (U_FAILURE(errorCode)) { return FALSE; }
if ((limit - s) > INT32_MAX) {
errorCode = U_INDEX_OUTOFBOUNDS_ERROR;
return FALSE;
}
return appendChange((int32_t)(limit - s), s16, s16Length, sink, edits, errorCode);
}
void
ByteSinkUtil::appendCodePoint(int32_t length, UChar32 c, ByteSink &sink, Edits *edits) {
char s8[U8_MAX_LENGTH];
int32_t s8Length = 0;
U8_APPEND_UNSAFE(s8, s8Length, c);
if (edits != nullptr) {
edits->addReplace(length, s8Length);
}
sink.Append(s8, s8Length);
}
namespace {
// See unicode/utf8.h U8_APPEND_UNSAFE().
inline uint8_t getTwoByteLead(UChar32 c) { return (uint8_t)((c >> 6) | 0xc0); }
inline uint8_t getTwoByteTrail(UChar32 c) { return (uint8_t)((c & 0x3f) | 0x80); }
} // namespace
void
ByteSinkUtil::appendTwoBytes(UChar32 c, ByteSink &sink) {
U_ASSERT(0x80 <= c && c <= 0x7ff); // 2-byte UTF-8
char s8[2] = { (char)getTwoByteLead(c), (char)getTwoByteTrail(c) };
sink.Append(s8, 2);
}
UBool
ByteSinkUtil::appendUnchanged(const uint8_t *s, int32_t length,
ByteSink &sink, uint32_t options, Edits *edits,
UErrorCode &errorCode) {
if (U_FAILURE(errorCode)) { return FALSE; }
if (length > 0) {
if (edits != nullptr) {
edits->addUnchanged(length);
}
if ((options & U_OMIT_UNCHANGED_TEXT) == 0) {
sink.Append(reinterpret_cast<const char *>(s), length);
}
}
return TRUE;
}
UBool
ByteSinkUtil::appendUnchanged(const uint8_t *s, const uint8_t *limit,
ByteSink &sink, uint32_t options, Edits *edits,
UErrorCode &errorCode) {
if (U_FAILURE(errorCode)) { return FALSE; }
if ((limit - s) > INT32_MAX) {
errorCode = U_INDEX_OUTOFBOUNDS_ERROR;
return FALSE;
}
return appendUnchanged(s, (int32_t)(limit - s), sink, options, edits, errorCode);
}
U_NAMESPACE_END

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@ -0,0 +1,53 @@
// © 2017 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
// bytesinkutil.h
// created: 2017sep14 Markus W. Scherer
#include "unicode/utypes.h"
#include "unicode/bytestream.h"
#include "unicode/edits.h"
#include "cmemory.h"
#include "uassert.h"
U_NAMESPACE_BEGIN
class ByteSink;
class Edits;
class U_COMMON_API ByteSinkUtil {
public:
ByteSinkUtil() = delete; // all static
/** (length) bytes were mapped to valid (s16, s16Length). */
static UBool appendChange(int32_t length,
const char16_t *s16, int32_t s16Length,
ByteSink &sink, Edits *edits, UErrorCode &errorCode);
/** The bytes at [s, limit[ were mapped to valid (s16, s16Length). */
static UBool appendChange(const uint8_t *s, const uint8_t *limit,
const char16_t *s16, int32_t s16Length,
ByteSink &sink, Edits *edits, UErrorCode &errorCode);
/** (length) bytes were mapped/changed to valid code point c. */
static void appendCodePoint(int32_t length, UChar32 c, ByteSink &sink, Edits *edits = nullptr);
/** The few bytes at [src, nextSrc[ were mapped/changed to valid code point c. */
static inline void appendCodePoint(const uint8_t *src, const uint8_t *nextSrc, UChar32 c,
ByteSink &sink, Edits *edits = nullptr) {
appendCodePoint((int32_t)(nextSrc - src), c, sink, edits);
}
/** Append the two-byte character (U+0080..U+07FF). */
static void appendTwoBytes(UChar32 c, ByteSink &sink);
static UBool appendUnchanged(const uint8_t *s, int32_t length,
ByteSink &sink, uint32_t options, Edits *edits,
UErrorCode &errorCode);
static UBool appendUnchanged(const uint8_t *s, const uint8_t *limit,
ByteSink &sink, uint32_t options, Edits *edits,
UErrorCode &errorCode);
};
U_NAMESPACE_END

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@ -45,6 +45,12 @@ void CheckedArrayByteSink::Append(const char* bytes, int32_t n) {
if (n <= 0) {
return;
}
if (n > (INT32_MAX - appended_)) {
// TODO: Report as integer overflow, not merely buffer overflow.
appended_ = INT32_MAX;
overflowed_ = TRUE;
return;
}
appended_ += n;
int32_t available = capacity_ - size_;
if (n > available) {

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@ -445,6 +445,7 @@
</ClCompile>
<ClCompile Include="usprep.cpp" />
<ClCompile Include="appendable.cpp" />
<ClCompile Include="bytesinkutil.cpp" />
<ClCompile Include="bytestream.cpp" />
<ClCompile Include="bytestrie.cpp" />
<ClCompile Include="bytestriebuilder.cpp" />
@ -1478,6 +1479,7 @@
</Command>
<Outputs Condition="'$(Configuration)|$(Platform)'=='Release|x64'">..\..\include\unicode\%(Filename)%(Extension);%(Outputs)</Outputs>
</CustomBuild>
<ClInclude Include="bytesinkutil.h" />
<CustomBuild Include="unicode\bytestream.h">
<Command Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">copy "%(FullPath)" ..\..\include\unicode
</Command>

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@ -460,6 +460,9 @@
<ClCompile Include="usprep.cpp">
<Filter>sprep</Filter>
</ClCompile>
<ClCompile Include="bytesinkutil.cpp">
<Filter>strings</Filter>
</ClCompile>
<ClCompile Include="bytestream.cpp">
<Filter>strings</Filter>
</ClCompile>
@ -861,6 +864,9 @@
<ClInclude Include="sprpimpl.h">
<Filter>sprep</Filter>
</ClInclude>
<ClInclude Include="bytesinkutil.h">
<Filter>strings</Filter>
</ClInclude>
<ClInclude Include="charstr.h">
<Filter>strings</Filter>
</ClInclude>

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@ -452,6 +452,7 @@
</ClCompile>
<ClCompile Include="usprep.cpp" />
<ClCompile Include="appendable.cpp" />
<ClCompile Include="bytesinkutil.cpp" />
<ClCompile Include="bytestream.cpp" />
<ClCompile Include="bytestrie.cpp" />
<ClCompile Include="bytestriebuilder.cpp" />
@ -894,6 +895,7 @@
</Command>
<Outputs>..\..\include\unicode\%(Filename)%(Extension);%(Outputs)</Outputs>
</CustomBuild>
<ClInclude Include="bytesinkutil.h" />
<CustomBuild Include="unicode\bytestream.h">
<Command>copy "%(FullPath)" ..\..\include\unicode
</Command>

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@ -28,6 +28,7 @@
#include "unicode/ustring.h"
#include "unicode/utf16.h"
#include "unicode/utf8.h"
#include "bytesinkutil.h"
#include "cmemory.h"
#include "mutex.h"
#include "normalizer2impl.h"
@ -129,60 +130,6 @@ int32_t getJamoTMinusBase(const uint8_t *src, const uint8_t *limit) {
return -1;
}
/** The bytes at [src, nextSrc[ were mapped to valid (s16, s16Length). */
UBool
appendChange(const uint8_t *src, const uint8_t *nextSrc,
const char16_t *s16, int32_t s16Length,
ByteSink &sink, Edits *edits, UErrorCode &errorCode) {
U_ASSERT(U_SUCCESS(errorCode));
U_ASSERT((nextSrc - src) <= INT32_MAX); // ensured by caller
char scratch[200];
int32_t s8Length = 0;
for (int32_t i = 0; i < s16Length;) {
int32_t capacity;
int32_t desiredCapacity = s16Length - i;
if (desiredCapacity < (INT32_MAX / 3)) {
desiredCapacity *= 3; // max 3 UTF-8 bytes per UTF-16 code unit
} else if (desiredCapacity < (INT32_MAX / 2)) {
desiredCapacity *= 2;
} else {
desiredCapacity = INT32_MAX;
}
char *buffer = sink.GetAppendBuffer(U8_MAX_LENGTH, desiredCapacity,
scratch, UPRV_LENGTHOF(scratch), &capacity);
capacity -= U8_MAX_LENGTH - 1;
int32_t j = 0;
for (; i < s16Length && j < capacity;) {
UChar32 c;
U16_NEXT_UNSAFE(s16, i, c);
U8_APPEND_UNSAFE(buffer, j, c);
}
if (j > (INT32_MAX - s8Length)) {
errorCode = U_INDEX_OUTOFBOUNDS_ERROR;
return FALSE;
}
sink.Append(buffer, j);
s8Length += j;
}
if (edits != nullptr) {
edits->addReplace((int32_t)(nextSrc - src), s8Length);
}
return TRUE;
}
/** The few bytes at [src, nextSrc[ were mapped to valid code point c. */
void
appendCodePoint(const uint8_t *src, const uint8_t *nextSrc, UChar32 c,
ByteSink &sink, Edits *edits) {
char buffer[U8_MAX_LENGTH];
int32_t length = 0;
U8_APPEND_UNSAFE(buffer, length, c);
if (edits != nullptr) {
edits->addReplace((int32_t)(nextSrc - src), length);
}
sink.Append(buffer, length);
}
void
appendCodePointDelta(const uint8_t *cpStart, const uint8_t *cpLimit, int32_t delta,
ByteSink &sink, Edits *edits) {
@ -214,27 +161,6 @@ appendCodePointDelta(const uint8_t *cpStart, const uint8_t *cpLimit, int32_t del
sink.Append(buffer, length);
}
UBool
appendUnchanged(const uint8_t *s, const uint8_t *limit,
ByteSink &sink, uint32_t options, Edits *edits,
UErrorCode &errorCode) {
U_ASSERT(U_SUCCESS(errorCode));
if ((limit - s) > INT32_MAX) {
errorCode = U_INDEX_OUTOFBOUNDS_ERROR;
return FALSE;
}
int32_t length = (int32_t)(limit - s);
if (length > 0) {
if (edits != nullptr) {
edits->addUnchanged(length);
}
if ((options & U_OMIT_UNCHANGED_TEXT) ==0) {
sink.Append(reinterpret_cast<const char *>(s), length);
}
}
return TRUE;
}
} // namespace
// ReorderingBuffer -------------------------------------------------------- ***
@ -1851,7 +1777,8 @@ Normalizer2Impl::composeUTF8(uint32_t options, UBool onlyContiguous,
for (;;) {
if (src == limit) {
if (prevBoundary != limit && sink != nullptr) {
appendUnchanged(prevBoundary, limit, *sink, options, edits, errorCode);
ByteSinkUtil::appendUnchanged(prevBoundary, limit,
*sink, options, edits, errorCode);
}
return TRUE;
}
@ -1884,7 +1811,8 @@ Normalizer2Impl::composeUTF8(uint32_t options, UBool onlyContiguous,
if (norm16HasCompBoundaryAfter(norm16, onlyContiguous) ||
hasCompBoundaryBefore(src, limit)) {
if (prevBoundary != prevSrc &&
!appendUnchanged(prevBoundary, prevSrc, *sink, options, edits, errorCode)) {
!ByteSinkUtil::appendUnchanged(prevBoundary, prevSrc,
*sink, options, edits, errorCode)) {
break;
}
appendCodePointDelta(prevSrc, src, getAlgorithmicDelta(norm16), *sink, edits);
@ -1896,12 +1824,13 @@ Normalizer2Impl::composeUTF8(uint32_t options, UBool onlyContiguous,
if (norm16HasCompBoundaryAfter(norm16, onlyContiguous) ||
hasCompBoundaryBefore(src, limit)) {
if (prevBoundary != prevSrc &&
!appendUnchanged(prevBoundary, prevSrc, *sink, options, edits, errorCode)) {
!ByteSinkUtil::appendUnchanged(prevBoundary, prevSrc,
*sink, options, edits, errorCode)) {
break;
}
const uint16_t *mapping = getMapping(norm16);
int32_t length = *mapping++ & MAPPING_LENGTH_MASK;
if (!appendChange(prevSrc, src, (const UChar *)mapping, length,
if (!ByteSinkUtil::appendChange(prevSrc, src, (const UChar *)mapping, length,
*sink, edits, errorCode)) {
break;
}
@ -1915,7 +1844,8 @@ Normalizer2Impl::composeUTF8(uint32_t options, UBool onlyContiguous,
if (hasCompBoundaryBefore(src, limit) ||
hasCompBoundaryAfter(prevBoundary, prevSrc, onlyContiguous)) {
if (prevBoundary != prevSrc &&
!appendUnchanged(prevBoundary, prevSrc, *sink, options, edits, errorCode)) {
!ByteSinkUtil::appendUnchanged(prevBoundary, prevSrc,
*sink, options, edits, errorCode)) {
break;
}
if (edits != nullptr) {
@ -1955,10 +1885,11 @@ Normalizer2Impl::composeUTF8(uint32_t options, UBool onlyContiguous,
Hangul::JAMO_T_COUNT + t;
prevSrc -= 3; // Replace the Jamo L as well.
if (prevBoundary != prevSrc &&
!appendUnchanged(prevBoundary, prevSrc, *sink, options, edits, errorCode)) {
!ByteSinkUtil::appendUnchanged(prevBoundary, prevSrc,
*sink, options, edits, errorCode)) {
break;
}
appendCodePoint(prevSrc, src, syllable, *sink, edits);
ByteSinkUtil::appendCodePoint(prevSrc, src, syllable, *sink, edits);
prevBoundary = src;
continue;
}
@ -1979,10 +1910,11 @@ Normalizer2Impl::composeUTF8(uint32_t options, UBool onlyContiguous,
UChar32 syllable = prev + getJamoTMinusBase(prevSrc, src);
prevSrc -= 3; // Replace the Hangul LV as well.
if (prevBoundary != prevSrc &&
!appendUnchanged(prevBoundary, prevSrc, *sink, options, edits, errorCode)) {
!ByteSinkUtil::appendUnchanged(prevBoundary, prevSrc,
*sink, options, edits, errorCode)) {
break;
}
appendCodePoint(prevSrc, src, syllable, *sink, edits);
ByteSinkUtil::appendCodePoint(prevSrc, src, syllable, *sink, edits);
prevBoundary = src;
continue;
}
@ -2006,7 +1938,8 @@ Normalizer2Impl::composeUTF8(uint32_t options, UBool onlyContiguous,
for (;;) {
if (src == limit) {
if (sink != nullptr) {
appendUnchanged(prevBoundary, limit, *sink, options, edits, errorCode);
ByteSinkUtil::appendUnchanged(prevBoundary, limit,
*sink, options, edits, errorCode);
}
return TRUE;
}
@ -2070,10 +2003,11 @@ Normalizer2Impl::composeUTF8(uint32_t options, UBool onlyContiguous,
return FALSE;
}
if (prevBoundary != prevSrc &&
!appendUnchanged(prevBoundary, prevSrc, *sink, options, edits, errorCode)) {
!ByteSinkUtil::appendUnchanged(prevBoundary, prevSrc,
*sink, options, edits, errorCode)) {
break;
}
if (!appendChange(prevSrc, src, buffer.getStart(), buffer.length(),
if (!ByteSinkUtil::appendChange(prevSrc, src, buffer.getStart(), buffer.length(),
*sink, edits, errorCode)) {
break;
}

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@ -20,9 +20,11 @@
#include "unicode/utypes.h"
#include "unicode/brkiter.h"
#include "unicode/bytestream.h"
#include "unicode/casemap.h"
#include "unicode/edits.h"
#include "unicode/stringoptions.h"
#include "unicode/stringpiece.h"
#include "unicode/ubrk.h"
#include "unicode/uloc.h"
#include "unicode/ustring.h"
@ -33,6 +35,7 @@
#include "unicode/utf.h"
#include "unicode/utf8.h"
#include "unicode/utf16.h"
#include "bytesinkutil.h"
#include "cmemory.h"
#include "cstring.h"
#include "uassert.h"
@ -40,27 +43,6 @@
#include "ucasemap_imp.h"
#include "ustr_imp.h"
U_NAMESPACE_BEGIN
namespace {
// TODO: share with UTF-16? inline in ucasemap_imp.h?
int32_t checkOverflowAndEditsError(int32_t destIndex, int32_t destCapacity,
Edits *edits, UErrorCode &errorCode) {
if (U_SUCCESS(errorCode)) {
if (destIndex > destCapacity) {
errorCode = U_BUFFER_OVERFLOW_ERROR;
} else if (edits != NULL) {
edits->copyErrorTo(errorCode);
}
}
return destIndex;
}
} // namespace
U_NAMESPACE_END
U_NAMESPACE_USE
/* UCaseMap service object -------------------------------------------------- */
@ -151,14 +133,13 @@ ucasemap_setOptions(UCaseMap *csm, uint32_t options, UErrorCode *pErrorCode) {
/* TODO(markus): Move to a new, separate utf8case.cpp file. */
namespace {
/* append a full case mapping result, see UCASE_MAX_STRING_LENGTH */
static inline int32_t
appendResult(uint8_t *dest, int32_t destIndex, int32_t destCapacity,
int32_t result, const UChar *s,
int32_t cpLength, uint32_t options, icu::Edits *edits) {
UChar32 c;
int32_t length;
UErrorCode errorCode;
inline UBool
appendResult(int32_t cpLength, int32_t result, const UChar *s,
ByteSink &sink, uint32_t options, icu::Edits *edits, UErrorCode &errorCode) {
U_ASSERT(U_SUCCESS(errorCode));
/* decode the result */
if(result<0) {
@ -166,137 +147,25 @@ appendResult(uint8_t *dest, int32_t destIndex, int32_t destCapacity,
if(edits!=NULL) {
edits->addUnchanged(cpLength);
}
if(options & U_OMIT_UNCHANGED_TEXT) {
return destIndex;
if((options & U_OMIT_UNCHANGED_TEXT) == 0) {
ByteSinkUtil::appendCodePoint(cpLength, ~result, sink);
}
c=~result;
if(destIndex<destCapacity && c<=0x7f) { // ASCII slightly-fastpath
dest[destIndex++]=(uint8_t)c;
return destIndex;
}
length=cpLength;
} else {
if(result<=UCASE_MAX_STRING_LENGTH) {
// string: "result" is the UTF-16 length
if(result==0) {
length=0;
return ByteSinkUtil::appendChange(cpLength, s, result, sink, edits, errorCode);
} else {
errorCode=U_ZERO_ERROR;
if(destIndex<destCapacity) {
u_strToUTF8((char *)(dest+destIndex), destCapacity-destIndex, &length,
s, result, &errorCode);
} else {
u_strToUTF8(NULL, 0, &length, s, result, &errorCode);
}
if(U_FAILURE(errorCode) && errorCode != U_BUFFER_OVERFLOW_ERROR) {
return -1;
}
if(length>(INT32_MAX-destIndex)) {
return -1; // integer overflow
ByteSinkUtil::appendCodePoint(cpLength, result, sink, edits);
}
}
if(edits!=NULL) {
edits->addReplace(cpLength, length);
}
// We might have an overflow, but we know the actual length.
return destIndex+length;
} else if(destIndex<destCapacity && result<=0x7f) { // ASCII slightly-fastpath
dest[destIndex++]=(uint8_t)result;
if(edits!=NULL) {
edits->addReplace(cpLength, 1);
}
return destIndex;
} else {
c=result;
length=U8_LENGTH(c);
if(edits!=NULL) {
edits->addReplace(cpLength, length);
}
}
}
// c>=0 single code point
if(length>(INT32_MAX-destIndex)) {
return -1; // integer overflow
}
if(destIndex<destCapacity) {
/* append the result */
UBool isError=FALSE;
U8_APPEND(dest, destIndex, destCapacity, c, isError);
if(isError) {
/* overflow, nothing written */
destIndex+=length;
}
} else {
/* preflight */
destIndex+=length;
}
return destIndex;
}
static inline int32_t
appendASCII(uint8_t *dest, int32_t destIndex, int32_t destCapacity, uint8_t c) {
if(destIndex<destCapacity) {
dest[destIndex]=c;
} else if(destIndex==INT32_MAX) {
return -1; // integer overflow
}
return destIndex+1;
return TRUE;
}
// See unicode/utf8.h U8_APPEND_UNSAFE().
static inline uint8_t getTwoByteLead(UChar32 c) { return (uint8_t)((c >> 6) | 0xc0); }
static inline uint8_t getTwoByteTrail(UChar32 c) { return (uint8_t)((c & 0x3f) | 0x80); }
inline uint8_t getTwoByteLead(UChar32 c) { return (uint8_t)((c >> 6) | 0xc0); }
inline uint8_t getTwoByteTrail(UChar32 c) { return (uint8_t)((c & 0x3f) | 0x80); }
static inline int32_t
appendTwoBytes(uint8_t *dest, int32_t destIndex, int32_t destCapacity, UChar32 c) {
U_ASSERT(0x370 <= c && c <= 0x3ff); // 2-byte UTF-8, main Greek block
if(2>(INT32_MAX-destIndex)) {
return -1; // integer overflow
}
int32_t limit=destIndex+2;
if(limit<=destCapacity) {
dest+=destIndex;
dest[0]=getTwoByteLead(c);
dest[1]=getTwoByteTrail(c);
}
return limit;
}
static inline int32_t
appendTwoBytes(uint8_t *dest, int32_t destIndex, int32_t destCapacity, const char *s) {
if(2>(INT32_MAX-destIndex)) {
return -1; // integer overflow
}
int32_t limit=destIndex+2;
if(limit<=destCapacity) {
dest+=destIndex;
dest[0]=(uint8_t)s[0];
dest[1]=(uint8_t)s[1];
}
return limit;
}
static inline int32_t
appendUnchanged(uint8_t *dest, int32_t destIndex, int32_t destCapacity,
const uint8_t *s, int32_t length, uint32_t options, icu::Edits *edits) {
if(length>0) {
if(edits!=NULL) {
edits->addUnchanged(length);
}
if(options & U_OMIT_UNCHANGED_TEXT) {
return destIndex;
}
if(length>(INT32_MAX-destIndex)) {
return -1; // integer overflow
}
if((destIndex+length)<=destCapacity) {
uprv_memcpy(dest+destIndex, s, length);
}
destIndex+=length;
}
return destIndex;
}
} // namespace
static UChar32 U_CALLCONV
utf8_caseContextIterator(void *context, int8_t dir) {
@ -334,17 +203,15 @@ utf8_caseContextIterator(void *context, int8_t dir) {
* Case-maps [srcStart..srcLimit[ but takes
* context [0..srcLength[ into account.
*/
static int32_t
static void
_caseMap(int32_t caseLocale, uint32_t options, UCaseMapFull *map,
uint8_t *dest, int32_t destCapacity,
const uint8_t *src, UCaseContext *csc,
int32_t srcStart, int32_t srcLimit,
icu::Edits *edits,
icu::ByteSink &sink, icu::Edits *edits,
UErrorCode &errorCode) {
/* case mapping loop */
int32_t srcIndex=srcStart;
int32_t destIndex=0;
while(srcIndex<srcLimit) {
while (U_SUCCESS(errorCode) && srcIndex<srcLimit) {
int32_t cpStart;
csc->cpStart=cpStart=srcIndex;
UChar32 c;
@ -352,45 +219,32 @@ _caseMap(int32_t caseLocale, uint32_t options, UCaseMapFull *map,
csc->cpLimit=srcIndex;
if(c<0) {
// Malformed UTF-8.
destIndex=appendUnchanged(dest, destIndex, destCapacity,
src+cpStart, srcIndex-cpStart, options, edits);
if(destIndex<0) {
errorCode=U_INDEX_OUTOFBOUNDS_ERROR;
return 0;
}
continue;
}
ByteSinkUtil::appendUnchanged(src+cpStart, srcIndex-cpStart,
sink, options, edits, errorCode);
} else {
const UChar *s;
c=map(c, utf8_caseContextIterator, csc, &s, caseLocale);
destIndex = appendResult(dest, destIndex, destCapacity, c, s,
srcIndex - cpStart, options, edits);
if (destIndex < 0) {
errorCode = U_INDEX_OUTOFBOUNDS_ERROR;
return 0;
appendResult(srcIndex - cpStart, c, s, sink, options, edits, errorCode);
}
}
return destIndex;
}
#if !UCONFIG_NO_BREAK_ITERATION
U_CFUNC int32_t U_CALLCONV
U_CFUNC void U_CALLCONV
ucasemap_internalUTF8ToTitle(
int32_t caseLocale, uint32_t options, BreakIterator *iter,
uint8_t *dest, int32_t destCapacity,
const uint8_t *src, int32_t srcLength,
icu::Edits *edits,
ByteSink &sink, icu::Edits *edits,
UErrorCode &errorCode) {
if (!ustrcase_checkTitleAdjustmentOptions(options, errorCode)) {
return 0;
return;
}
/* set up local variables */
UCaseContext csc=UCASECONTEXT_INITIALIZER;
csc.p=(void *)src;
csc.limit=srcLength;
int32_t destIndex=0;
int32_t prev=0;
UBool isFirstIndex=TRUE;
@ -435,11 +289,9 @@ ucasemap_internalUTF8ToTitle(
U8_NEXT(src, titleLimit, index, c);
}
if (prev < titleStart) {
destIndex=appendUnchanged(dest, destIndex, destCapacity,
src+prev, titleStart-prev, options, edits);
if(destIndex<0) {
errorCode=U_INDEX_OUTOFBOUNDS_ERROR;
return 0;
if (!ByteSinkUtil::appendUnchanged(src+prev, titleStart-prev,
sink, options, edits, errorCode)) {
return;
}
}
}
@ -451,16 +303,15 @@ ucasemap_internalUTF8ToTitle(
csc.cpLimit=titleLimit;
const UChar *s;
c=ucase_toFullTitle(c, utf8_caseContextIterator, &csc, &s, caseLocale);
destIndex=appendResult(dest, destIndex, destCapacity, c, s,
titleLimit-titleStart, options, edits);
if (!appendResult(titleLimit-titleStart, c, s, sink, options, edits, errorCode)) {
return;
}
} else {
// Malformed UTF-8.
destIndex=appendUnchanged(dest, destIndex, destCapacity,
src+titleStart, titleLimit-titleStart, options, edits);
if (!ByteSinkUtil::appendUnchanged(src+titleStart, titleLimit-titleStart,
sink, options, edits, errorCode)) {
return;
}
if(destIndex<0) {
errorCode=U_INDEX_OUTOFBOUNDS_ERROR;
return 0;
}
/* Special case Dutch IJ titlecasing */
@ -468,22 +319,13 @@ ucasemap_internalUTF8ToTitle(
caseLocale == UCASE_LOC_DUTCH &&
(src[titleStart] == 0x0049 || src[titleStart] == 0x0069)) {
if (src[titleStart+1] == 0x006A) {
destIndex=appendASCII(dest, destIndex, destCapacity, 0x004A);
if(destIndex<0) {
errorCode=U_INDEX_OUTOFBOUNDS_ERROR;
return 0;
}
if(edits!=NULL) {
edits->addReplace(1, 1);
}
ByteSinkUtil::appendCodePoint(1, 0x004A, sink, edits);
titleLimit++;
} else if (src[titleStart+1] == 0x004A) {
// Keep the capital J from getting lowercased.
destIndex=appendUnchanged(dest, destIndex, destCapacity,
src+titleStart+1, 1, options, edits);
if(destIndex<0) {
errorCode=U_INDEX_OUTOFBOUNDS_ERROR;
return 0;
if (!ByteSinkUtil::appendUnchanged(src+titleStart+1, 1,
sink, options, edits, errorCode)) {
return;
}
titleLimit++;
}
@ -493,26 +335,18 @@ ucasemap_internalUTF8ToTitle(
if(titleLimit<index) {
if((options&U_TITLECASE_NO_LOWERCASE)==0) {
/* Normal operation: Lowercase the rest of the word. */
destIndex+=
_caseMap(
caseLocale, options, ucase_toFullLower,
dest+destIndex, destCapacity-destIndex,
_caseMap(caseLocale, options, ucase_toFullLower,
src, &csc,
titleLimit, index,
edits, errorCode);
if(errorCode==U_BUFFER_OVERFLOW_ERROR) {
errorCode=U_ZERO_ERROR;
}
sink, edits, errorCode);
if(U_FAILURE(errorCode)) {
return destIndex;
return;
}
} else {
/* Optionally just copy the rest of the word unchanged. */
destIndex=appendUnchanged(dest, destIndex, destCapacity,
src+titleLimit, index-titleLimit, options, edits);
if(destIndex<0) {
errorCode=U_INDEX_OUTOFBOUNDS_ERROR;
return 0;
if (!ByteSinkUtil::appendUnchanged(src+titleLimit, index-titleLimit,
sink, options, edits, errorCode)) {
return;
}
}
}
@ -521,8 +355,6 @@ ucasemap_internalUTF8ToTitle(
prev=index;
}
return checkOverflowAndEditsError(destIndex, destCapacity, edits, errorCode);
}
#endif
@ -547,12 +379,10 @@ UBool isFollowedByCasedLetter(const uint8_t *s, int32_t i, int32_t length) {
}
// Keep this consistent with the UTF-16 version in ustrcase.cpp and the Java version in CaseMap.java.
int32_t toUpper(uint32_t options,
uint8_t *dest, int32_t destCapacity,
void toUpper(uint32_t options,
const uint8_t *src, int32_t srcLength,
Edits *edits,
ByteSink &sink, Edits *edits,
UErrorCode &errorCode) {
int32_t destIndex=0;
uint32_t state = 0;
for (int32_t i = 0; i < srcLength;) {
int32_t nextIndex = i;
@ -667,143 +497,141 @@ int32_t toUpper(uint32_t options,
}
if (change) {
destIndex=appendTwoBytes(dest, destIndex, destCapacity, upper);
if (destIndex >= 0 && (data & HAS_EITHER_DIALYTIKA) != 0) {
destIndex=appendTwoBytes(dest, destIndex, destCapacity, u8"\u0308"); // restore or add a dialytika
ByteSinkUtil::appendTwoBytes(upper, sink);
if ((data & HAS_EITHER_DIALYTIKA) != 0) {
sink.Append(u8"\u0308", 2); // restore or add a dialytika
}
if (destIndex >= 0 && addTonos) {
destIndex=appendTwoBytes(dest, destIndex, destCapacity, u8"\u0301");
if (addTonos) {
sink.Append(u8"\u0301", 2);
}
while (destIndex >= 0 && numYpogegrammeni > 0) {
destIndex=appendTwoBytes(dest, destIndex, destCapacity, u8"\u0399");
while (numYpogegrammeni > 0) {
sink.Append(u8"\u0399", 2);
--numYpogegrammeni;
}
if(destIndex<0) {
errorCode=U_INDEX_OUTOFBOUNDS_ERROR;
return 0;
}
}
} else if(c>=0) {
const UChar *s;
c=ucase_toFullUpper(c, NULL, NULL, &s, UCASE_LOC_GREEK);
destIndex = appendResult(dest, destIndex, destCapacity, c, s,
nextIndex - i, options, edits);
if (destIndex < 0) {
errorCode = U_INDEX_OUTOFBOUNDS_ERROR;
return 0;
if (!appendResult(nextIndex - i, c, s, sink, options, edits, errorCode)) {
return;
}
} else {
// Malformed UTF-8.
destIndex=appendUnchanged(dest, destIndex, destCapacity,
src+i, nextIndex-i, options, edits);
if(destIndex<0) {
errorCode=U_INDEX_OUTOFBOUNDS_ERROR;
return 0;
if (!ByteSinkUtil::appendUnchanged(src+i, nextIndex-i,
sink, options, edits, errorCode)) {
return;
}
}
i = nextIndex;
state = nextState;
}
return destIndex;
}
} // namespace GreekUpper
U_NAMESPACE_END
static int32_t U_CALLCONV
static void U_CALLCONV
ucasemap_internalUTF8ToLower(int32_t caseLocale, uint32_t options, UCASEMAP_BREAK_ITERATOR_UNUSED
uint8_t *dest, int32_t destCapacity,
const uint8_t *src, int32_t srcLength,
icu::Edits *edits,
icu::ByteSink &sink, icu::Edits *edits,
UErrorCode &errorCode) {
UCaseContext csc=UCASECONTEXT_INITIALIZER;
csc.p=(void *)src;
csc.limit=srcLength;
int32_t destIndex = _caseMap(
_caseMap(
caseLocale, options, ucase_toFullLower,
dest, destCapacity,
src, &csc, 0, srcLength,
edits, errorCode);
return checkOverflowAndEditsError(destIndex, destCapacity, edits, errorCode);
sink, edits, errorCode);
}
static int32_t U_CALLCONV
static void U_CALLCONV
ucasemap_internalUTF8ToUpper(int32_t caseLocale, uint32_t options, UCASEMAP_BREAK_ITERATOR_UNUSED
uint8_t *dest, int32_t destCapacity,
const uint8_t *src, int32_t srcLength,
icu::Edits *edits,
icu::ByteSink &sink, icu::Edits *edits,
UErrorCode &errorCode) {
int32_t destIndex;
if (caseLocale == UCASE_LOC_GREEK) {
destIndex = GreekUpper::toUpper(options, dest, destCapacity,
src, srcLength, edits, errorCode);
GreekUpper::toUpper(options, src, srcLength, sink, edits, errorCode);
} else {
UCaseContext csc=UCASECONTEXT_INITIALIZER;
csc.p=(void *)src;
csc.limit=srcLength;
destIndex = _caseMap(
_caseMap(
caseLocale, options, ucase_toFullUpper,
dest, destCapacity,
src, &csc, 0, srcLength,
edits, errorCode);
sink, edits, errorCode);
}
return checkOverflowAndEditsError(destIndex, destCapacity, edits, errorCode);
}
static int32_t U_CALLCONV
static void U_CALLCONV
ucasemap_internalUTF8Fold(int32_t /* caseLocale */, uint32_t options, UCASEMAP_BREAK_ITERATOR_UNUSED
uint8_t *dest, int32_t destCapacity,
const uint8_t *src, int32_t srcLength,
icu::Edits *edits,
icu::ByteSink &sink, icu::Edits *edits,
UErrorCode &errorCode) {
/* case mapping loop */
int32_t srcIndex = 0;
int32_t destIndex = 0;
while (srcIndex < srcLength) {
while (U_SUCCESS(errorCode) && srcIndex < srcLength) {
int32_t cpStart = srcIndex;
UChar32 c;
U8_NEXT(src, srcIndex, srcLength, c);
if(c<0) {
// Malformed UTF-8.
destIndex=appendUnchanged(dest, destIndex, destCapacity,
src+cpStart, srcIndex-cpStart, options, edits);
if(destIndex<0) {
errorCode=U_INDEX_OUTOFBOUNDS_ERROR;
return 0;
}
continue;
}
ByteSinkUtil::appendUnchanged(src+cpStart, srcIndex-cpStart,
sink, options, edits, errorCode);
} else {
const UChar *s;
c = ucase_toFullFolding(c, &s, options);
destIndex = appendResult(dest, destIndex, destCapacity, c, s,
srcIndex - cpStart, options, edits);
if (destIndex < 0) {
errorCode = U_INDEX_OUTOFBOUNDS_ERROR;
return 0;
appendResult(srcIndex - cpStart, c, s, sink, options, edits, errorCode);
}
}
}
return checkOverflowAndEditsError(destIndex, destCapacity, edits, errorCode);
}
U_CFUNC int32_t
void
ucasemap_mapUTF8(int32_t caseLocale, uint32_t options, UCASEMAP_BREAK_ITERATOR_PARAM
uint8_t *dest, int32_t destCapacity,
const uint8_t *src, int32_t srcLength,
const char *src, int32_t srcLength,
UTF8CaseMapper *stringCaseMapper,
icu::ByteSink &sink, icu::Edits *edits,
UErrorCode &errorCode) {
/* check argument values */
if (U_FAILURE(errorCode)) {
return;
}
if ((src == nullptr && srcLength != 0) || srcLength < -1) {
errorCode = U_ILLEGAL_ARGUMENT_ERROR;
return;
}
// Get the string length.
if (srcLength == -1) {
srcLength = (int32_t)uprv_strlen((const char *)src);
}
if (edits != nullptr && (options & U_EDITS_NO_RESET) == 0) {
edits->reset();
}
stringCaseMapper(caseLocale, options, UCASEMAP_BREAK_ITERATOR
(const uint8_t *)src, srcLength, sink, edits, errorCode);
sink.Flush();
if (U_SUCCESS(errorCode)) {
if (edits != nullptr) {
edits->copyErrorTo(errorCode);
}
}
}
int32_t
ucasemap_mapUTF8(int32_t caseLocale, uint32_t options, UCASEMAP_BREAK_ITERATOR_PARAM
char *dest, int32_t destCapacity,
const char *src, int32_t srcLength,
UTF8CaseMapper *stringCaseMapper,
icu::Edits *edits,
UErrorCode &errorCode) {
int32_t destLength;
/* check argument values */
if(U_FAILURE(errorCode)) {
return 0;
}
if( destCapacity<0 ||
(dest==NULL && destCapacity>0) ||
src==NULL ||
srcLength<-1
(src==NULL && srcLength!=0) || srcLength<-1
) {
errorCode=U_ILLEGAL_ARGUMENT_ERROR;
return 0;
@ -823,12 +651,21 @@ ucasemap_mapUTF8(int32_t caseLocale, uint32_t options, UCASEMAP_BREAK_ITERATOR_P
return 0;
}
CheckedArrayByteSink sink(dest, destCapacity);
if (edits != nullptr && (options & U_EDITS_NO_RESET) == 0) {
edits->reset();
}
destLength=stringCaseMapper(caseLocale, options, UCASEMAP_BREAK_ITERATOR
dest, destCapacity, src, srcLength, edits, errorCode);
return u_terminateChars((char *)dest, destCapacity, destLength, &errorCode);
stringCaseMapper(caseLocale, options, UCASEMAP_BREAK_ITERATOR
(const uint8_t *)src, srcLength, sink, edits, errorCode);
sink.Flush();
if (U_SUCCESS(errorCode)) {
if (sink.Overflowed()) {
errorCode = U_BUFFER_OVERFLOW_ERROR;
} else if (edits != nullptr) {
edits->copyErrorTo(errorCode);
}
}
return u_terminateChars(dest, destCapacity, sink.NumberOfBytesAppended(), &errorCode);
}
/* public API functions */
@ -840,8 +677,8 @@ ucasemap_utf8ToLower(const UCaseMap *csm,
UErrorCode *pErrorCode) {
return ucasemap_mapUTF8(
csm->caseLocale, csm->options, UCASEMAP_BREAK_ITERATOR_NULL
(uint8_t *)dest, destCapacity,
(const uint8_t *)src, srcLength,
dest, destCapacity,
src, srcLength,
ucasemap_internalUTF8ToLower, NULL, *pErrorCode);
}
@ -852,8 +689,8 @@ ucasemap_utf8ToUpper(const UCaseMap *csm,
UErrorCode *pErrorCode) {
return ucasemap_mapUTF8(
csm->caseLocale, csm->options, UCASEMAP_BREAK_ITERATOR_NULL
(uint8_t *)dest, destCapacity,
(const uint8_t *)src, srcLength,
dest, destCapacity,
src, srcLength,
ucasemap_internalUTF8ToUpper, NULL, *pErrorCode);
}
@ -864,13 +701,43 @@ ucasemap_utf8FoldCase(const UCaseMap *csm,
UErrorCode *pErrorCode) {
return ucasemap_mapUTF8(
UCASE_LOC_ROOT, csm->options, UCASEMAP_BREAK_ITERATOR_NULL
(uint8_t *)dest, destCapacity,
(const uint8_t *)src, srcLength,
dest, destCapacity,
src, srcLength,
ucasemap_internalUTF8Fold, NULL, *pErrorCode);
}
U_NAMESPACE_BEGIN
void CaseMap::utf8ToLower(
const char *locale, uint32_t options,
StringPiece src, ByteSink &sink, Edits *edits,
UErrorCode &errorCode) {
ucasemap_mapUTF8(
ustrcase_getCaseLocale(locale), options, UCASEMAP_BREAK_ITERATOR_NULL
src.data(), src.length(),
ucasemap_internalUTF8ToLower, sink, edits, errorCode);
}
void CaseMap::utf8ToUpper(
const char *locale, uint32_t options,
StringPiece src, ByteSink &sink, Edits *edits,
UErrorCode &errorCode) {
ucasemap_mapUTF8(
ustrcase_getCaseLocale(locale), options, UCASEMAP_BREAK_ITERATOR_NULL
src.data(), src.length(),
ucasemap_internalUTF8ToUpper, sink, edits, errorCode);
}
void CaseMap::utf8Fold(
uint32_t options,
StringPiece src, ByteSink &sink, Edits *edits,
UErrorCode &errorCode) {
ucasemap_mapUTF8(
UCASE_LOC_ROOT, options, UCASEMAP_BREAK_ITERATOR_NULL
src.data(), src.length(),
ucasemap_internalUTF8Fold, sink, edits, errorCode);
}
int32_t CaseMap::utf8ToLower(
const char *locale, uint32_t options,
const char *src, int32_t srcLength,
@ -878,8 +745,8 @@ int32_t CaseMap::utf8ToLower(
UErrorCode &errorCode) {
return ucasemap_mapUTF8(
ustrcase_getCaseLocale(locale), options, UCASEMAP_BREAK_ITERATOR_NULL
(uint8_t *)dest, destCapacity,
(const uint8_t *)src, srcLength,
dest, destCapacity,
src, srcLength,
ucasemap_internalUTF8ToLower, edits, errorCode);
}
@ -890,8 +757,8 @@ int32_t CaseMap::utf8ToUpper(
UErrorCode &errorCode) {
return ucasemap_mapUTF8(
ustrcase_getCaseLocale(locale), options, UCASEMAP_BREAK_ITERATOR_NULL
(uint8_t *)dest, destCapacity,
(const uint8_t *)src, srcLength,
dest, destCapacity,
src, srcLength,
ucasemap_internalUTF8ToUpper, edits, errorCode);
}
@ -902,8 +769,8 @@ int32_t CaseMap::utf8Fold(
UErrorCode &errorCode) {
return ucasemap_mapUTF8(
UCASE_LOC_ROOT, options, UCASEMAP_BREAK_ITERATOR_NULL
(uint8_t *)dest, destCapacity,
(const uint8_t *)src, srcLength,
dest, destCapacity,
src, srcLength,
ucasemap_internalUTF8Fold, edits, errorCode);
}

View File

@ -73,6 +73,8 @@ uprv_haveProperties(UErrorCode *pErrorCode);
U_NAMESPACE_BEGIN
class ByteSink;
/** Returns TRUE if the options are valid. Otherwise FALSE, and sets an error. */
inline UBool ustrcase_checkTitleAdjustmentOptions(uint32_t options, UErrorCode &errorCode) {
if (U_FAILURE(errorCode)) { return FALSE; }
@ -207,39 +209,43 @@ ustrcase_mapWithOverlap(int32_t caseLocale, uint32_t options, UCASEMAP_BREAK_ITE
* UTF-8 version of UStringCaseMapper.
* All error checking must be done.
* The UCaseMap must be fully initialized, with locale and/or iter set as needed.
* src and dest must not overlap.
*/
typedef int32_t U_CALLCONV
typedef void U_CALLCONV
UTF8CaseMapper(int32_t caseLocale, uint32_t options,
#if !UCONFIG_NO_BREAK_ITERATION
icu::BreakIterator *iter,
#endif
uint8_t *dest, int32_t destCapacity,
const uint8_t *src, int32_t srcLength,
icu::Edits *edits,
icu::ByteSink &sink, icu::Edits *edits,
UErrorCode &errorCode);
#if !UCONFIG_NO_BREAK_ITERATION
/** Implements UTF8CaseMapper. */
U_CFUNC int32_t U_CALLCONV
U_CFUNC void U_CALLCONV
ucasemap_internalUTF8ToTitle(int32_t caseLocale, uint32_t options,
icu::BreakIterator *iter,
uint8_t *dest, int32_t destCapacity,
const uint8_t *src, int32_t srcLength,
icu::Edits *edits,
icu::ByteSink &sink, icu::Edits *edits,
UErrorCode &errorCode);
#endif
void
ucasemap_mapUTF8(int32_t caseLocale, uint32_t options, UCASEMAP_BREAK_ITERATOR_PARAM
const char *src, int32_t srcLength,
UTF8CaseMapper *stringCaseMapper,
icu::ByteSink &sink, icu::Edits *edits,
UErrorCode &errorCode);
/**
* Implements argument checking and buffer handling
* for UTF-8 string case mapping as a common function.
*/
U_CFUNC int32_t
int32_t
ucasemap_mapUTF8(int32_t caseLocale, uint32_t options, UCASEMAP_BREAK_ITERATOR_PARAM
uint8_t *dest, int32_t destCapacity,
const uint8_t *src, int32_t srcLength,
char *dest, int32_t destCapacity,
const char *src, int32_t srcLength,
UTF8CaseMapper *stringCaseMapper,
icu::Edits *edits,
UErrorCode &errorCode);

View File

@ -31,6 +31,29 @@
U_NAMESPACE_BEGIN
void CaseMap::utf8ToTitle(
const char *locale, uint32_t options, BreakIterator *iter,
StringPiece src, ByteSink &sink, Edits *edits,
UErrorCode &errorCode) {
if (U_FAILURE(errorCode)) {
return;
}
UText utext = UTEXT_INITIALIZER;
utext_openUTF8(&utext, src.data(), src.length(), &errorCode);
LocalPointer<BreakIterator> ownedIter;
iter = ustrcase_getTitleBreakIterator(nullptr, locale, options, iter, ownedIter, errorCode);
if (iter == nullptr) {
utext_close(&utext);
return;
}
iter->setText(&utext, errorCode);
ucasemap_mapUTF8(
ustrcase_getCaseLocale(locale), options, iter,
src.data(), src.length(),
ucasemap_internalUTF8ToTitle, sink, edits, errorCode);
utext_close(&utext);
}
int32_t CaseMap::utf8ToTitle(
const char *locale, uint32_t options, BreakIterator *iter,
const char *src, int32_t srcLength,
@ -50,8 +73,8 @@ int32_t CaseMap::utf8ToTitle(
iter->setText(&utext, errorCode);
int32_t length=ucasemap_mapUTF8(
ustrcase_getCaseLocale(locale), options, iter,
(uint8_t *)dest, destCapacity,
(const uint8_t *)src, srcLength,
dest, destCapacity,
src, srcLength,
ucasemap_internalUTF8ToTitle, edits, errorCode);
utext_close(&utext);
return length;
@ -101,8 +124,8 @@ ucasemap_utf8ToTitle(UCaseMap *csm,
csm->iter->setText(&utext, *pErrorCode);
int32_t length=ucasemap_mapUTF8(
csm->caseLocale, csm->options, csm->iter,
(uint8_t *)dest, destCapacity,
(const uint8_t *)src, srcLength,
dest, destCapacity,
src, srcLength,
ucasemap_internalUTF8ToTitle, NULL, *pErrorCode);
utext_close(&utext);
return length;

View File

@ -8,6 +8,7 @@
#define __CASEMAP_H__
#include "unicode/utypes.h"
#include "unicode/stringpiece.h"
#include "unicode/uobject.h"
/**
@ -20,6 +21,7 @@ U_NAMESPACE_BEGIN
#ifndef U_HIDE_DRAFT_API
class BreakIterator;
class ByteSink;
class Edits;
/**
@ -194,6 +196,129 @@ public:
char16_t *dest, int32_t destCapacity, Edits *edits,
UErrorCode &errorCode);
/**
* Lowercases a UTF-8 string and optionally records edits.
* Casing is locale-dependent and context-sensitive.
* The result may be longer or shorter than the original.
*
* @param locale The locale ID. ("" = root locale, NULL = default locale.)
* @param options Options bit set, usually 0. See U_OMIT_UNCHANGED_TEXT and U_EDITS_NO_RESET.
* @param src The original string.
* @param sink A ByteSink to which the result string is written.
* sink.Flush() is called at the end.
* @param edits Records edits for index mapping, working with styled text,
* and getting only changes (if any).
* The Edits contents is undefined if any error occurs.
* This function calls edits->reset() first unless
* options includes U_EDITS_NO_RESET. edits can be NULL.
* @param errorCode Reference to an in/out error code value
* which must not indicate a failure before the function call.
*
* @see ucasemap_utf8ToLower
* @draft ICU 60
*/
static void utf8ToLower(
const char *locale, uint32_t options,
StringPiece src, ByteSink &sink, Edits *edits,
UErrorCode &errorCode);
/**
* Uppercases a UTF-8 string and optionally records edits.
* Casing is locale-dependent and context-sensitive.
* The result may be longer or shorter than the original.
*
* @param locale The locale ID. ("" = root locale, NULL = default locale.)
* @param options Options bit set, usually 0. See U_OMIT_UNCHANGED_TEXT and U_EDITS_NO_RESET.
* @param src The original string.
* @param sink A ByteSink to which the result string is written.
* sink.Flush() is called at the end.
* @param edits Records edits for index mapping, working with styled text,
* and getting only changes (if any).
* The Edits contents is undefined if any error occurs.
* This function calls edits->reset() first unless
* options includes U_EDITS_NO_RESET. edits can be NULL.
* @param errorCode Reference to an in/out error code value
* which must not indicate a failure before the function call.
*
* @see ucasemap_utf8ToUpper
* @draft ICU 60
*/
static void utf8ToUpper(
const char *locale, uint32_t options,
StringPiece src, ByteSink &sink, Edits *edits,
UErrorCode &errorCode);
#if !UCONFIG_NO_BREAK_ITERATION
/**
* Titlecases a UTF-8 string and optionally records edits.
* Casing is locale-dependent and context-sensitive.
* The result may be longer or shorter than the original.
*
* Titlecasing uses a break iterator to find the first characters of words
* that are to be titlecased. It titlecases those characters and lowercases
* all others. (This can be modified with options bits.)
*
* @param locale The locale ID. ("" = root locale, NULL = default locale.)
* @param options Options bit set, usually 0. See U_OMIT_UNCHANGED_TEXT, U_EDITS_NO_RESET,
* U_TITLECASE_NO_LOWERCASE,
* U_TITLECASE_NO_BREAK_ADJUSTMENT, U_TITLECASE_ADJUST_TO_CASED,
* U_TITLECASE_WHOLE_STRING, U_TITLECASE_SENTENCES.
* @param iter A break iterator to find the first characters of words that are to be titlecased.
* It is set to the source string (setUText())
* and used one or more times for iteration (first() and next()).
* If NULL, then a word break iterator for the locale is used
* (or something equivalent).
* @param src The original string.
* @param sink A ByteSink to which the result string is written.
* sink.Flush() is called at the end.
* @param edits Records edits for index mapping, working with styled text,
* and getting only changes (if any).
* The Edits contents is undefined if any error occurs.
* This function calls edits->reset() first unless
* options includes U_EDITS_NO_RESET. edits can be NULL.
* @param errorCode Reference to an in/out error code value
* which must not indicate a failure before the function call.
*
* @see ucasemap_utf8ToTitle
* @draft ICU 60
*/
static void utf8ToTitle(
const char *locale, uint32_t options, BreakIterator *iter,
StringPiece src, ByteSink &sink, Edits *edits,
UErrorCode &errorCode);
#endif // UCONFIG_NO_BREAK_ITERATION
/**
* Case-folds a UTF-8 string and optionally records edits.
*
* Case folding is locale-independent and not context-sensitive,
* but there is an option for whether to include or exclude mappings for dotted I
* and dotless i that are marked with 'T' in CaseFolding.txt.
*
* The result may be longer or shorter than the original.
*
* @param options Options bit set, usually 0. See U_OMIT_UNCHANGED_TEXT and U_EDITS_NO_RESET.
* @param src The original string.
* @param sink A ByteSink to which the result string is written.
* sink.Flush() is called at the end.
* @param edits Records edits for index mapping, working with styled text,
* and getting only changes (if any).
* The Edits contents is undefined if any error occurs.
* This function calls edits->reset() first unless
* options includes U_EDITS_NO_RESET. edits can be NULL.
* @param errorCode Reference to an in/out error code value
* which must not indicate a failure before the function call.
*
* @see ucasemap_utf8FoldCase
* @draft ICU 60
*/
static void utf8Fold(
uint32_t options,
StringPiece src, ByteSink &sink, Edits *edits,
UErrorCode &errorCode);
/**
* Lowercases a UTF-8 string and optionally records edits.
* Casing is locale-dependent and context-sensitive.

View File

@ -1438,55 +1438,50 @@ void StringCaseTest::TestCaseMapToString() {
void StringCaseTest::TestCaseMapUTF8ToString() {
IcuTestErrorCode errorCode(*this, "TestCaseMapUTF8ToString");
// TODO: Change this to writing to string via ByteSink when that is available.
char dest[50];
std::string dest;
StringByteSink<std::string> sink(&dest);
// Omit unchanged text.
int32_t length = CaseMap::utf8ToLower("tr", U_OMIT_UNCHANGED_TEXT,
u8"IstanBul", 8, dest, UPRV_LENGTHOF(dest), nullptr, errorCode);
assertEquals(u"toLower(IstanBul)", UnicodeString(u"ıb"),
UnicodeString::fromUTF8(StringPiece(dest, length)));
length = CaseMap::utf8ToUpper("el", U_OMIT_UNCHANGED_TEXT,
u8"Πατάτα", 6 * 2, dest, UPRV_LENGTHOF(dest), nullptr, errorCode);
CaseMap::utf8ToLower("tr", U_OMIT_UNCHANGED_TEXT, u8"IstanBul", sink, nullptr, errorCode);
assertEquals(u"toLower(IstanBul)", UnicodeString(u"ıb"), UnicodeString::fromUTF8(dest));
dest.clear();
CaseMap::utf8ToUpper("el", U_OMIT_UNCHANGED_TEXT, u8"Πατάτα", sink, nullptr, errorCode);
assertEquals(u"toUpper(Πατάτα)", UnicodeString(u"ΑΤΑΤΑ"),
UnicodeString::fromUTF8(StringPiece(dest, length)));
UnicodeString::fromUTF8(dest));
#if !UCONFIG_NO_BREAK_ITERATION
length = CaseMap::utf8ToTitle("nl",
U_OMIT_UNCHANGED_TEXT |
U_TITLECASE_NO_BREAK_ADJUSTMENT |
U_TITLECASE_NO_LOWERCASE,
nullptr, u8"IjssEL IglOo", 12,
dest, UPRV_LENGTHOF(dest), nullptr, errorCode);
dest.clear();
CaseMap::utf8ToTitle(
"nl", U_OMIT_UNCHANGED_TEXT | U_TITLECASE_NO_BREAK_ADJUSTMENT | U_TITLECASE_NO_LOWERCASE,
nullptr, u8"IjssEL IglOo", sink, nullptr, errorCode);
assertEquals(u"toTitle(IjssEL IglOo)", UnicodeString(u"J"),
UnicodeString::fromUTF8(StringPiece(dest, length)));
UnicodeString::fromUTF8(dest));
#endif
length = CaseMap::utf8Fold(U_OMIT_UNCHANGED_TEXT | U_FOLD_CASE_EXCLUDE_SPECIAL_I,
u8"IßtanBul", 1 + 2 + 6, dest, UPRV_LENGTHOF(dest), nullptr, errorCode);
dest.clear();
CaseMap::utf8Fold(U_OMIT_UNCHANGED_TEXT | U_FOLD_CASE_EXCLUDE_SPECIAL_I,
u8"IßtanBul", sink, nullptr, errorCode);
assertEquals(u"foldCase(IßtanBul)", UnicodeString(u"ıssb"),
UnicodeString::fromUTF8(StringPiece(dest, length)));
UnicodeString::fromUTF8(dest));
// Return the whole result string.
length = CaseMap::utf8ToLower("tr", 0,
u8"IstanBul", 8, dest, UPRV_LENGTHOF(dest), nullptr, errorCode);
dest.clear();
CaseMap::utf8ToLower("tr", 0, u8"IstanBul", sink, nullptr, errorCode);
assertEquals(u"toLower(IstanBul)", UnicodeString(u"ıstanbul"),
UnicodeString::fromUTF8(StringPiece(dest, length)));
length = CaseMap::utf8ToUpper("el", 0,
u8"Πατάτα", 6 * 2, dest, UPRV_LENGTHOF(dest), nullptr, errorCode);
UnicodeString::fromUTF8(dest));
dest.clear();
CaseMap::utf8ToUpper("el", 0, u8"Πατάτα", sink, nullptr, errorCode);
assertEquals(u"toUpper(Πατάτα)", UnicodeString(u"ΠΑΤΑΤΑ"),
UnicodeString::fromUTF8(StringPiece(dest, length)));
UnicodeString::fromUTF8(dest));
#if !UCONFIG_NO_BREAK_ITERATION
length = CaseMap::utf8ToTitle("nl",
U_TITLECASE_NO_BREAK_ADJUSTMENT |
U_TITLECASE_NO_LOWERCASE,
nullptr, u8"IjssEL IglOo", 12,
dest, UPRV_LENGTHOF(dest), nullptr, errorCode);
dest.clear();
CaseMap::utf8ToTitle("nl", U_TITLECASE_NO_BREAK_ADJUSTMENT | U_TITLECASE_NO_LOWERCASE,
nullptr, u8"IjssEL IglOo", sink, nullptr, errorCode);
assertEquals(u"toTitle(IjssEL IglOo)", UnicodeString(u"IJssEL IglOo"),
UnicodeString::fromUTF8(StringPiece(dest, length)));
UnicodeString::fromUTF8(dest));
#endif
length = CaseMap::utf8Fold(U_FOLD_CASE_EXCLUDE_SPECIAL_I,
u8"IßtanBul", 1 + 2 + 6, dest, UPRV_LENGTHOF(dest), nullptr, errorCode);
dest.clear();
CaseMap::utf8Fold(U_FOLD_CASE_EXCLUDE_SPECIAL_I, u8"IßtanBul", sink, nullptr, errorCode);
assertEquals(u"foldCase(IßtanBul)", UnicodeString(u"ısstanbul"),
UnicodeString::fromUTF8(StringPiece(dest, length)));
UnicodeString::fromUTF8(dest));
}
void StringCaseTest::TestLongUnicodeString() {