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Showing content from http://www.ncbi.nlm.nih.gov/IEB/ToolBox/CPP_DOC/doxyhtml/pcre2__valid__utf_8c_source.html below:

NCBI C++ ToolKit: src/util/regexp/pcre2_valid_utf.c Source File

47 #ifndef PCRE2_PCRE2TEST 55 #ifndef SUPPORT_UNICODE 101 #if PCRE2_CODE_UNIT_WIDTH == 8 134 for

(p =

string

; length > 0; p++)

141  if

(c < 128)

continue

;

172  if

(((d = *(++p)) & 0xc0) != 0x80)

174

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - 1;

187  case

1:

if

((c & 0x3e) == 0)

189

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - 1;

199  if

((*(++p) & 0xc0) != 0x80)

201

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - 2;

204  if

(c == 0xe0 && (d & 0x20) == 0)

206

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - 2;

209  if

(c == 0xed && d >= 0xa0)

211

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - 2;

221  if

((*(++p) & 0xc0) != 0x80)

223

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - 2;

226  if

((*(++p) & 0xc0) != 0x80)

228

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - 3;

231  if

(c == 0xf0 && (d & 0x30) == 0)

233

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - 3;

236  if

(c > 0xf4 || (c == 0xf4 && d > 0x8f))

238

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - 3;

252  if

((*(++p) & 0xc0) != 0x80)

254

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - 2;

257  if

((*(++p) & 0xc0) != 0x80)

259

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - 3;

262  if

((*(++p) & 0xc0) != 0x80)

264

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - 4;

267  if

(c == 0xf8 && (d & 0x38) == 0)

269

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - 4;

278  if

((*(++p) & 0xc0) != 0x80)

280

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - 2;

283  if

((*(++p) & 0xc0) != 0x80)

285

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - 3;

288  if

((*(++p) & 0xc0) != 0x80)

290

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - 4;

293  if

((*(++p) & 0xc0) != 0x80)

295

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - 5;

298  if

(c == 0xfc && (d & 0x3c) == 0)

300

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - 5;

312

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - ab;

321 #elif PCRE2_CODE_UNIT_WIDTH == 16 329 for

(p =

string

; length > 0; p++)

334  if

((c & 0xf800) != 0xd800)

338  else if

((c & 0x0400) == 0)

348  if

((*p & 0xfc00) != 0xdc00)

350

*erroroffset = (

PCRE2_SIZE

)(p -

string

) - 1;

374 for

(p =

string

; length > 0; length--, p++)

377  if

((c & 0xfffff800u) != 0xd800u)

#define PCRE2_ERROR_UTF8_ERR10

#define PCRE2_ERROR_UTF8_ERR7

#define PCRE2_ERROR_UTF8_ERR21

#define PCRE2_ERROR_UTF8_ERR9

#define PCRE2_ERROR_UTF32_ERR2

#define PCRE2_ERROR_UTF8_ERR1

#define PCRE2_ERROR_UTF8_ERR12

#define PCRE2_ERROR_UTF8_ERR16

#define PCRE2_ERROR_UTF8_ERR13

#define PCRE2_ERROR_UTF8_ERR18

#define PCRE2_ERROR_UTF16_ERR2

#define PCRE2_ERROR_UTF16_ERR3

#define PCRE2_ERROR_UTF8_ERR2

#define PCRE2_ERROR_UTF8_ERR20

#define PCRE2_ERROR_UTF8_ERR6

#define PCRE2_ERROR_UTF8_ERR19

#define PCRE2_ERROR_UTF8_ERR4

#define PCRE2_ERROR_UTF8_ERR3

#define PCRE2_ERROR_UTF8_ERR17

#define PCRE2_ERROR_UTF8_ERR14

#define PCRE2_ERROR_UTF8_ERR5

#define PCRE2_ERROR_UTF8_ERR8

#define PCRE2_ERROR_UTF32_ERR1

#define PCRE2_ERROR_UTF8_ERR15

#define PCRE2_ERROR_UTF16_ERR1

#define PCRE2_ERROR_UTF8_ERR11

int valid_utf(PCRE2_SPTR8, PCRE2_SIZE, PCRE2_SIZE *)

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