experimental/visual_studio_plugin/third_party/breakpad/common/convert_UTF.c - Issue 10928195: First round of dead file removal

Unified Diff: experimental/visual_studio_plugin/third_party/breakpad/common/convert_UTF.c

Issue 10928195: First round of dead file removal (Closed) Base URL: https://github.com/samclegg/nativeclient-sdk.git@master

Patch Set: Created 8 years, 3 months ago

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Index: experimental/visual_studio_plugin/third_party/breakpad/common/convert_UTF.c

diff --git a/experimental/visual_studio_plugin/third_party/breakpad/common/convert_UTF.c b/experimental/visual_studio_plugin/third_party/breakpad/common/convert_UTF.c

deleted file mode 100644

index 80178d35ef9c712101df83fa5b36802f8b2a124d..0000000000000000000000000000000000000000

--- a/experimental/visual_studio_plugin/third_party/breakpad/common/convert_UTF.c

+++ /dev/null

@@ -1,533 +0,0 @@

-/*

- *

- * Disclaimer

- *

- * This source code is provided as is by Unicode, Inc. No claims are

- * made as to fitness for any particular purpose. No warranties of any

- * kind are expressed or implied. The recipient agrees to determine

- * applicability of information provided. If this file has been

- * purchased on magnetic or optical media from Unicode, Inc., the

- * sole remedy for any claim will be exchange of defective media

- * within 90 days of receipt.

- *

- * Limitations on Rights to Redistribute This Code

- *

- * Unicode, Inc. hereby grants the right to freely use the information

- * supplied in this file in the creation of products supporting the

- * Unicode Standard, and to make copies of this file in any form

- * for internal or external distribution as long as this notice

- * remains attached.

- */

-/* ---------------------------------------------------------------------

-Conversions between UTF32, UTF-16, and UTF-8. Source code file.

-Author: Mark E. Davis, 1994.

-Rev History: Rick McGowan, fixes & updates May 2001.

-Sept 2001: fixed const & error conditions per

-mods suggested by S. Parent & A. Lillich.

-June 2002: Tim Dodd added detection and handling of incomplete

-source sequences, enhanced error detection, added casts

-to eliminate compiler warnings.

-July 2003: slight mods to back out aggressive FFFE detection.

-Jan 2004: updated switches in from-UTF8 conversions.

-Oct 2004: updated to use UNI_MAX_LEGAL_UTF32 in UTF-32 conversions.

-See the header file "ConvertUTF.h" for complete documentation.

------------------------------------------------------------------------- */

-#include "convert_UTF.h"

-#ifdef CVTUTF_DEBUG

-#include <stdio.h>

-#endif

-static const int halfShift = 10; /* used for shifting by 10 bits */

-static const UTF32 halfBase = 0x0010000UL;

-static const UTF32 halfMask = 0x3FFUL;

-#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

-/* --------------------------------------------------------------------- */

-ConversionResult ConvertUTF32toUTF16 (const UTF32** sourceStart, const UTF32* sourceEnd,

- UTF16** targetStart, UTF16* targetEnd, ConversionFlags flags) {

- ConversionResult result = conversionOK;

- const UTF32* source = *sourceStart;

- UTF16* target = *targetStart;

- while (source < sourceEnd) {

- UTF32 ch;

- if (target >= targetEnd) {

- result = targetExhausted; break;

- }

- ch = *source++;

- if (ch <= UNI_MAX_BMP) { /* Target is a character <= 0xFFFF */

- /* UTF-16 surrogate values are illegal in UTF-32; 0xffff or 0xfffe are both reserved values */

- if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_LOW_END) {

- if (flags == strictConversion) {

- --source; /* return to the illegal value itself */

- result = sourceIllegal;

- break;

- } else {

- *target++ = UNI_REPLACEMENT_CHAR;

- }

- } else {

- *target++ = (UTF16)ch; /* normal case */

- }

- } else if (ch > UNI_MAX_LEGAL_UTF32) {

- if (flags == strictConversion) {

- result = sourceIllegal;

- } else {

- *target++ = UNI_REPLACEMENT_CHAR;

- }

- } else {

- /* target is a character in range 0xFFFF - 0x10FFFF. */

- if (target + 1 >= targetEnd) {

- --source; /* Back up source pointer! */

- result = targetExhausted; break;

- }

- ch -= halfBase;

- *target++ = (UTF16)((ch >> halfShift) + UNI_SUR_HIGH_START);

- *target++ = (UTF16)((ch & halfMask) + UNI_SUR_LOW_START);

- }

-*sourceStart = source;

-*targetStart = target;

-return result;

-/* --------------------------------------------------------------------- */

-ConversionResult ConvertUTF16toUTF32 (const UTF16** sourceStart, const UTF16* sourceEnd,

- UTF32** targetStart, UTF32* targetEnd, ConversionFlags flags) {

- ConversionResult result = conversionOK;

- const UTF16* source = *sourceStart;

- UTF32* target = *targetStart;

- UTF32 ch, ch2;

- while (source < sourceEnd) {

- const UTF16* oldSource = source; /* In case we have to back up because of target overflow. */

- ch = *source++;

- /* If we have a surrogate pair, convert to UTF32 first. */

- if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_HIGH_END) {

- /* If the 16 bits following the high surrogate are in the source buffer... */

- if (source < sourceEnd) {

- ch2 = *source;

- /* If it's a low surrogate, convert to UTF32. */

- if (ch2 >= UNI_SUR_LOW_START && ch2 <= UNI_SUR_LOW_END) {

- ch = ((ch - UNI_SUR_HIGH_START) << halfShift)

- + (ch2 - UNI_SUR_LOW_START) + halfBase;

- ++source;

- } else if (flags == strictConversion) { /* it's an unpaired high surrogate */

- --source; /* return to the illegal value itself */

- result = sourceIllegal;

- break;

- }

- } else { /* We don't have the 16 bits following the high surrogate. */

- --source; /* return to the high surrogate */

- result = sourceExhausted;

- break;

- }

- } else if (flags == strictConversion) {

- /* UTF-16 surrogate values are illegal in UTF-32 */

- if (ch >= UNI_SUR_LOW_START && ch <= UNI_SUR_LOW_END) {

- --source; /* return to the illegal value itself */

- result = sourceIllegal;

- break;

- }

- if (target >= targetEnd) {

- source = oldSource; /* Back up source pointer! */

- result = targetExhausted; break;

- }

- *target++ = ch;

- }

- *sourceStart = source;

- *targetStart = target;

-#ifdef CVTUTF_DEBUG

- if (result == sourceIllegal) {

- fprintf(stderr, "ConvertUTF16toUTF32 illegal seq 0x%04x,%04x\n", ch, ch2);

- fflush(stderr);

- }

-#endif

- return result;

-/* --------------------------------------------------------------------- */

-/*

- * Index into the table below with the first byte of a UTF-8 sequence to

- * get the number of trailing bytes that are supposed to follow it.

- * Note that *legal* UTF-8 values can't have 4 or 5-bytes. The table is

- * left as-is for anyone who may want to do such conversion, which was

- * allowed in earlier algorithms.

- */

-static const char trailingBytesForUTF8[256] = {

- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 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

-};

-/*

- * Magic values subtracted from a buffer value during UTF8 conversion.

- * This table contains as many values as there might be trailing bytes

- * in a UTF-8 sequence.

- */

-static const UTF32 offsetsFromUTF8[6] = { 0x00000000UL, 0x00003080UL, 0x000E2080UL,

- 0x03C82080UL, 0xFA082080UL, 0x82082080UL };

-/*

- * Once the bits are split out into bytes of UTF-8, this is a mask OR-ed

- * into the first byte, depending on how many bytes follow. There are

- * as many entries in this table as there are UTF-8 sequence types.

- * (I.e., one byte sequence, two byte... etc.). Remember that sequencs

- * for *legal* UTF-8 will be 4 or fewer bytes total.

- */

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

-/* --------------------------------------------------------------------- */

-/* The interface converts a whole buffer to avoid function-call overhead.

-* Constants have been gathered. Loops & conditionals have been removed as

-* much as possible for efficiency, in favor of drop-through switches.

-* (See "Note A" at the bottom of the file for equivalent code.)

-* If your compiler supports it, the "isLegalUTF8" call can be turned

-* into an inline function.

-*/

-/* --------------------------------------------------------------------- */

-ConversionResult ConvertUTF16toUTF8 (const UTF16** sourceStart, const UTF16* sourceEnd,

- UTF8** targetStart, UTF8* targetEnd, ConversionFlags flags) {

- ConversionResult result = conversionOK;

- const UTF16* source = *sourceStart;

- UTF8* target = *targetStart;

- while (source < sourceEnd) {

- UTF32 ch;

- unsigned short bytesToWrite = 0;

- const UTF32 byteMask = 0xBF;

- const UTF32 byteMark = 0x80;

- const UTF16* oldSource = source; /* In case we have to back up because of target overflow. */

- ch = *source++;

- /* If we have a surrogate pair, convert to UTF32 first. */

- if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_HIGH_END) {

- /* If the 16 bits following the high surrogate are in the source buffer... */

- if (source < sourceEnd) {

- UTF32 ch2 = *source;

- /* If it's a low surrogate, convert to UTF32. */

- if (ch2 >= UNI_SUR_LOW_START && ch2 <= UNI_SUR_LOW_END) {

- ch = ((ch - UNI_SUR_HIGH_START) << halfShift)

- + (ch2 - UNI_SUR_LOW_START) + halfBase;

- ++source;

- } else if (flags == strictConversion) { /* it's an unpaired high surrogate */

- --source; /* return to the illegal value itself */

- result = sourceIllegal;

- break;

- }

- } else { /* We don't have the 16 bits following the high surrogate. */

- --source; /* return to the high surrogate */

- result = sourceExhausted;

- break;

- }

- } else if (flags == strictConversion) {

- /* UTF-16 surrogate values are illegal in UTF-32 */

- if (ch >= UNI_SUR_LOW_START && ch <= UNI_SUR_LOW_END) {

- --source; /* return to the illegal value itself */

- result = sourceIllegal;

- break;

- }

- /* Figure out how many bytes the result will require */

- if (ch < (UTF32)0x80) { bytesToWrite = 1;

- } else if (ch < (UTF32)0x800) { bytesToWrite = 2;

- } else if (ch < (UTF32)0x10000) { bytesToWrite = 3;

- } else if (ch < (UTF32)0x110000) { bytesToWrite = 4;

- } else { bytesToWrite = 3;

- ch = UNI_REPLACEMENT_CHAR;

- }

- target += bytesToWrite;

- if (target > targetEnd) {

- source = oldSource; /* Back up source pointer! */

- target -= bytesToWrite; result = targetExhausted; break;

- }

- switch (bytesToWrite) { /* note: everything falls through. */

- case 4: *--target = (UTF8)((ch | byteMark) & byteMask); ch >>= 6;

- case 3: *--target = (UTF8)((ch | byteMark) & byteMask); ch >>= 6;

- case 2: *--target = (UTF8)((ch | byteMark) & byteMask); ch >>= 6;

- case 1: *--target = (UTF8)(ch | firstByteMark[bytesToWrite]);

- }

- target += bytesToWrite;

- }

-*sourceStart = source;

-*targetStart = target;

-return result;

-/* --------------------------------------------------------------------- */

-/*

- * Utility routine to tell whether a sequence of bytes is legal UTF-8.

- * This must be called with the length pre-determined by the first byte.

- * If not calling this from ConvertUTF8to*, then the length can be set by:

- * length = trailingBytesForUTF8[*source]+1;

- * and the sequence is illegal right away if there aren't that many bytes

- * available.

- * If presented with a length > 4, this returns false. The Unicode

- * definition of UTF-8 goes up to 4-byte sequences.

- */

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

- UTF8 a;

- const UTF8 *srcptr = source+length;

- switch (length) {

- default: return false;

- /* Everything else falls through when "true"... */

- case 4: if ((a = (*--srcptr)) < 0x80 || a > 0xBF) return false;

- case 3: if ((a = (*--srcptr)) < 0x80 || a > 0xBF) return false;

- case 2: if ((a = (*--srcptr)) > 0xBF) return false;

- switch (*source) {

- /* no fall-through in this inner switch */

- case 0xE0: if (a < 0xA0) return false; break;

- case 0xED: if (a > 0x9F) return false; break;

- case 0xF0: if (a < 0x90) return false; break;

- case 0xF4: if (a > 0x8F) return false; break;

- default: if (a < 0x80) return false;

- }

- case 1: if (*source >= 0x80 && *source < 0xC2) return false;

- }

- if (*source > 0xF4) return false;

- return true;

-/* --------------------------------------------------------------------- */

-/*

- * Exported function to return whether a UTF-8 sequence is legal or not.

- * This is not used here; it's just exported.

- */

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

- int length = trailingBytesForUTF8[*source]+1;

- if (source+length > sourceEnd) {

- return false;

- }

- return isLegalUTF8(source, length);

-/* --------------------------------------------------------------------- */

-ConversionResult ConvertUTF8toUTF16 (const UTF8** sourceStart, const UTF8* sourceEnd,

- UTF16** targetStart, UTF16* targetEnd, ConversionFlags flags) {

- ConversionResult result = conversionOK;

- const UTF8* source = *sourceStart;

- UTF16* target = *targetStart;

- while (source < sourceEnd) {

- UTF32 ch = 0;

- unsigned short extraBytesToRead = trailingBytesForUTF8[*source];

- if (source + extraBytesToRead >= sourceEnd) {

- result = sourceExhausted; break;

- }

- /* Do this check whether lenient or strict */

- if (! isLegalUTF8(source, extraBytesToRead+1)) {

- result = sourceIllegal;

- break;

- }

- /*

- * The cases all fall through. See "Note A" below.

- */

- switch (extraBytesToRead) {

- case 5: ch += *source++; ch <<= 6; /* remember, illegal UTF-8 */

- case 4: ch += *source++; ch <<= 6; /* remember, illegal UTF-8 */

- case 3: ch += *source++; ch <<= 6;

- case 2: ch += *source++; ch <<= 6;

- case 1: ch += *source++; ch <<= 6;

- case 0: ch += *source++;

- }

- ch -= offsetsFromUTF8[extraBytesToRead];

- if (target >= targetEnd) {

- source -= (extraBytesToRead+1); /* Back up source pointer! */

- result = targetExhausted; break;

- }

- if (ch <= UNI_MAX_BMP) { /* Target is a character <= 0xFFFF */

- /* UTF-16 surrogate values are illegal in UTF-32 */

- if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_LOW_END) {

- if (flags == strictConversion) {

- source -= (extraBytesToRead+1); /* return to the illegal value itself */

- result = sourceIllegal;

- break;

- } else {

- *target++ = UNI_REPLACEMENT_CHAR;

- }

- } else {

- *target++ = (UTF16)ch; /* normal case */

- }

- } else if (ch > UNI_MAX_UTF16) {

- if (flags == strictConversion) {

- result = sourceIllegal;

- source -= (extraBytesToRead+1); /* return to the start */

- break; /* Bail out; shouldn't continue */

- } else {

- *target++ = UNI_REPLACEMENT_CHAR;

- }

- } else {

- /* target is a character in range 0xFFFF - 0x10FFFF. */

- if (target + 1 >= targetEnd) {

- source -= (extraBytesToRead+1); /* Back up source pointer! */

- result = targetExhausted; break;

- }

- ch -= halfBase;

- *target++ = (UTF16)((ch >> halfShift) + UNI_SUR_HIGH_START);

- *target++ = (UTF16)((ch & halfMask) + UNI_SUR_LOW_START);

- }

-*sourceStart = source;

-*targetStart = target;

-return result;

-/* --------------------------------------------------------------------- */

-ConversionResult ConvertUTF32toUTF8 (const UTF32** sourceStart, const UTF32* sourceEnd,

- UTF8** targetStart, UTF8* targetEnd, ConversionFlags flags) {

- ConversionResult result = conversionOK;

- const UTF32* source = *sourceStart;

- UTF8* target = *targetStart;

- while (source < sourceEnd) {

- UTF32 ch;

- unsigned short bytesToWrite = 0;

- const UTF32 byteMask = 0xBF;

- const UTF32 byteMark = 0x80;

- ch = *source++;

- if (flags == strictConversion ) {

- /* UTF-16 surrogate values are illegal in UTF-32 */

- if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_LOW_END) {

- --source; /* return to the illegal value itself */

- result = sourceIllegal;

- break;

- }

- /*

- * Figure out how many bytes the result will require. Turn any

- * illegally large UTF32 things (> Plane 17) into replacement chars.

- */

- if (ch < (UTF32)0x80) { bytesToWrite = 1;

- } else if (ch < (UTF32)0x800) { bytesToWrite = 2;

- } else if (ch < (UTF32)0x10000) { bytesToWrite = 3;

- } else if (ch <= UNI_MAX_LEGAL_UTF32) { bytesToWrite = 4;

- } else { bytesToWrite = 3;

- ch = UNI_REPLACEMENT_CHAR;

- result = sourceIllegal;

- }

- target += bytesToWrite;

- if (target > targetEnd) {

- --source; /* Back up source pointer! */

- target -= bytesToWrite; result = targetExhausted; break;

- }

- switch (bytesToWrite) { /* note: everything falls through. */

- case 4: *--target = (UTF8)((ch | byteMark) & byteMask); ch >>= 6;

- case 3: *--target = (UTF8)((ch | byteMark) & byteMask); ch >>= 6;

- case 2: *--target = (UTF8)((ch | byteMark) & byteMask); ch >>= 6;

- case 1: *--target = (UTF8) (ch | firstByteMark[bytesToWrite]);

- }

- target += bytesToWrite;

- }

-*sourceStart = source;

-*targetStart = target;

-return result;

-/* --------------------------------------------------------------------- */

-ConversionResult ConvertUTF8toUTF32 (const UTF8** sourceStart, const UTF8* sourceEnd,

- UTF32** targetStart, UTF32* targetEnd, ConversionFlags flags) {

- ConversionResult result = conversionOK;

- const UTF8* source = *sourceStart;

- UTF32* target = *targetStart;

- while (source < sourceEnd) {

- UTF32 ch = 0;

- unsigned short extraBytesToRead = trailingBytesForUTF8[*source];

- if (source + extraBytesToRead >= sourceEnd) {

- result = sourceExhausted; break;

- }

- /* Do this check whether lenient or strict */

- if (! isLegalUTF8(source, extraBytesToRead+1)) {

- result = sourceIllegal;

- break;

- }

- /*

- * The cases all fall through. See "Note A" below.

- */

- switch (extraBytesToRead) {

- case 5: ch += *source++; ch <<= 6;

- case 4: ch += *source++; ch <<= 6;

- case 3: ch += *source++; ch <<= 6;

- case 2: ch += *source++; ch <<= 6;

- case 1: ch += *source++; ch <<= 6;

- case 0: ch += *source++;

- }

- ch -= offsetsFromUTF8[extraBytesToRead];

- if (target >= targetEnd) {

- source -= (extraBytesToRead+1); /* Back up the source pointer! */

- result = targetExhausted; break;

- }

- if (ch <= UNI_MAX_LEGAL_UTF32) {

- /*

- * UTF-16 surrogate values are illegal in UTF-32, and anything

- * over Plane 17 (> 0x10FFFF) is illegal.

- */

- if (ch >= UNI_SUR_HIGH_START && ch <= UNI_SUR_LOW_END) {

- if (flags == strictConversion) {

- source -= (extraBytesToRead+1); /* return to the illegal value itself */

- result = sourceIllegal;

- break;

- } else {

- *target++ = UNI_REPLACEMENT_CHAR;

- }

- } else {

- *target++ = ch;

- }

- } else { /* i.e., ch > UNI_MAX_LEGAL_UTF32 */

- result = sourceIllegal;

- *target++ = UNI_REPLACEMENT_CHAR;

- }

- *sourceStart = source;

- *targetStart = target;

- return result;

-/* ---------------------------------------------------------------------

-Note A.

-The fall-through switches in UTF-8 reading code save a

-temp variable, some decrements & conditionals. The switches

-are equivalent to the following loop:

- int tmpBytesToRead = extraBytesToRead+1;

- do {

- ch += *source++;

- --tmpBytesToRead;

- if (tmpBytesToRead) ch <<= 6;

- } while (tmpBytesToRead > 0);

-In UTF-8 writing code, the switches on "bytesToWrite" are

-similarly unrolled loops.

---------------------------------------------------------------------- */