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

*

* tsparser.c

* Text search parser as extension

*

* Portions Copyright (c) 2015-2016, Postgres Professional

* Portions Copyright (c) 1996-2016, PostgreSQL Global Development Group

*

*-------------------------------------------------------------------------

*/

#include "postgres.h"

#include "fmgr.h"

#include <limits.h>

#include <wctype.h>

#include "catalog/pg_collation.h"

#include "commands/defrem.h"

#include "mb/pg_wchar.h"

#include "tsearch/ts_public.h"

#include "tsearch/ts_type.h"

#include "tsearch/ts_utils.h"

#include "utils/builtins.h"

#include "utils/pg_locale.h"

PG_MODULE_MAGIC;

PG_FUNCTION_INFO_V1(tsparser_start);

PG_FUNCTION_INFO_V1(tsparser_nexttoken);

PG_FUNCTION_INFO_V1(tsparser_end);

PG_FUNCTION_INFO_V1(tsparser_lextype);

PG_FUNCTION_INFO_V1(tsparser_headline);

/* Define me to enable tracing of parser behavior */

/* #define WPARSER_TRACE */

/* Output token categories */

#define ASCIIWORD 1

#define WORD_T 2

#define NUMWORD 3

#define EMAIL 4

#define URL_T 5

#define HOST 6

#define SCIENTIFIC 7

#define VERSIONNUMBER 8

#define NUMPARTHWORD 9

#define PARTHWORD 10

#define ASCIIPARTHWORD 11

#define SPACE 12

#define TAG_T 13

#define PROTOCOL 14

#define NUMHWORD 15

#define ASCIIHWORD 16

#define HWORD 17

#define URLPATH 18

#define FILEPATH 19

#define DECIMAL_T 20

#define SIGNEDINT 21

#define UNSIGNEDINT 22

#define XMLENTITY 23

#define LASTNUM 23

static const char *const tok_alias[] = {

"",

"asciiword",

"word",

"numword",

"email",

"url",

"host",

"sfloat",

"version",

"hword_numpart",

"hword_part",

"hword_asciipart",

"blank",

"tag",

"protocol",

"numhword",

"asciihword",

"hword",

"url_path",

"file",

"float",

"int",

"uint",

"entity"

};

static const char *const lex_descr[] = {

"",

"Word, all ASCII",

"Word, all letters",

"Word, letters and digits",

"Email address",

"URL",

"Host",

"Scientific notation",

"Version number",

"Hyphenated word part, letters and digits",

"Hyphenated word part, all letters",

"Hyphenated word part, all ASCII",

"Space symbols",

"XML tag",

"Protocol head",

"Hyphenated word, letters and digits",

"Hyphenated word, all ASCII",

"Hyphenated word, all letters",

"URL path",

"File or path name",

"Decimal notation",

"Signed integer",

"Unsigned integer",

"XML entity"

};

/* Parser states */

typedef enum

{

TPS_Base = 0,

TPS_InNumWord,

TPS_InAsciiWord,

TPS_InWord,

TPS_InUnsignedInt,

TPS_InSignedIntFirst,

TPS_InSignedInt,

TPS_InSpace,

TPS_InUDecimalFirst,

TPS_InUDecimal,

TPS_InDecimalFirst,

TPS_InDecimal,

TPS_InVerVersion,

TPS_InSVerVersion,

TPS_InVersionFirst,

TPS_InVersion,

TPS_InMantissaFirst,

TPS_InMantissaSign,

TPS_InMantissa,

TPS_InXMLEntityFirst,

TPS_InXMLEntity,

TPS_InXMLEntityNumFirst,

TPS_InXMLEntityNum,

TPS_InXMLEntityHexNumFirst,

TPS_InXMLEntityHexNum,

TPS_InXMLEntityEnd,

TPS_InTagFirst,

TPS_InXMLBegin,

TPS_InTagCloseFirst,

TPS_InTagName,

TPS_InTagBeginEnd,

TPS_InTag,

TPS_InTagEscapeK,

TPS_InTagEscapeKK,

TPS_InTagBackSleshed,

TPS_InTagEnd,

TPS_InCommentFirst,

TPS_InCommentLast,

TPS_InComment,

TPS_InCloseCommentFirst,

TPS_InCloseCommentLast,

TPS_InCommentEnd,

TPS_InHostFirstDomain,

TPS_InHostDomainSecond,

TPS_InHostDomain,

TPS_InPortFirst,

TPS_InPort,

TPS_InHostFirstAN,

TPS_InHost,

TPS_InHostAsciiWord,

TPS_InHostNumWord,

TPS_InEmail,

TPS_InFileFirst,

TPS_InFileTwiddle,

TPS_InPathFirst,

TPS_InPathFirstFirst,

TPS_InPathSecond,

TPS_InFile,

TPS_InFileNext,

TPS_InURLPathFirst,

TPS_InURLPathStart,

TPS_InURLPath,

TPS_InFURL,

TPS_InProtocolFirst,

TPS_InProtocolSecond,

TPS_InProtocolEnd,

TPS_InHyphenAsciiWordFirst,

TPS_InHyphenAsciiWord,

TPS_InHyphenWordFirst,

TPS_InHyphenWord,

TPS_InHyphenNumWordFirst,

TPS_InHyphenNumWord,

TPS_InHyphenDigitLookahead,

TPS_InParseHyphen,

TPS_InParseHyphenHyphen,

TPS_InHyphenWordPart,

TPS_InHyphenAsciiWordPart,

TPS_InHyphenNumWordPart,

TPS_InHyphenUnsignedInt,

TPS_Null /* last state (fake value) */

} TParserState;

/* forward declaration */

struct TParser;

typedef int (*TParserCharTest) (struct TParser *); /* any p_is* functions

* except p_iseq */

typedef void (*TParserSpecial) (struct TParser *); /* special handler for

* special cases... */

typedef struct

{

TParserCharTest isclass;

char c;

uint16 flags;

TParserState tostate;

int type;

TParserSpecial special;

} TParserStateActionItem;

/* Flag bits in TParserStateActionItem.flags */

#define A_NEXT 0x0000

#define A_BINGO 0x0001

#define A_POP 0x0002

#define A_PUSH 0x0004

#define A_RERUN 0x0008

#define A_CLEAR 0x0010

#define A_MERGE 0x0020

#define A_CLRALL 0x0040

typedef struct TParserPosition

{

int posbyte; /* position of parser in bytes */

int poschar; /* position of parser in characters */

int charlen; /* length of current char */

int lenbytetoken; /* length of token-so-far in bytes */

int lenchartoken; /* and in chars */

TParserState state;

struct TParserPosition *prev;

const TParserStateActionItem *pushedAtAction;

} TParserPosition;

typedef struct TParser

{

/* string and position information */

char *str; /* multibyte string */

int lenstr; /* length of mbstring */

wchar_t *wstr; /* wide character string */

pg_wchar *pgwstr; /* wide character string for C-locale */

bool usewide;

/* State of parse */

int charmaxlen;

TParserPosition *state;

bool ignore;

bool wanthost;

/* silly char */

char c;

/* out */

char *token;

int lenbytetoken;

int lenchartoken;

int type;

} TParser;

#if PG_VERSION_NUM < 120000

#define pg_strtoint32(value) pg_atoi((value), sizeof(int32), 0)

#endif

/* forward decls here */

static bool TParserGet(TParser *prs);

static TParserPosition *

newTParserPosition(TParserPosition *prev)

{

TParserPosition *res = (TParserPosition *) palloc(sizeof(TParserPosition));

if (prev)

memcpy(res, prev, sizeof(TParserPosition));

else

memset(res, 0, sizeof(TParserPosition));

res->prev = prev;

res->pushedAtAction = NULL;

return res;

}

static TParser *

TParserInit(char *str, int len)

{

TParser *prs = (TParser *) palloc0(sizeof(TParser));

prs->charmaxlen = pg_database_encoding_max_length();

prs->str = str;

prs->lenstr = len;

/*

* Use wide char code only when max encoding length > 1.

*/

if (prs->charmaxlen > 1)

{

Oid collation = DEFAULT_COLLATION_OID; /* TODO */

pg_locale_t mylocale = 0; /* TODO */

prs->usewide = true;

if (lc_ctype_is_c(collation))

{

/*

* char2wchar doesn't work for C-locale and sizeof(pg_wchar) could

* be different from sizeof(wchar_t)

*/

prs->pgwstr = (pg_wchar *) palloc(sizeof(pg_wchar) * (prs->lenstr + 1));

pg_mb2wchar_with_len(prs->str, prs->pgwstr, prs->lenstr);

}

else

{

prs->wstr = (wchar_t *) palloc(sizeof(wchar_t) * (prs->lenstr + 1));

char2wchar(prs->wstr, prs->lenstr + 1, prs->str, prs->lenstr,

mylocale);

}

}

else

prs->usewide = false;

prs->state = newTParserPosition(NULL);

prs->state->state = TPS_Base;

#ifdef WPARSER_TRACE

/*

* Use of %.*s here is a bit risky since it can misbehave if the data is

* not in what libc thinks is the prevailing encoding. However, since

* this is just a debugging aid, we choose to live with that.

*/

fprintf(stderr, "parsing \"%.*s\"\n", len, str);

#endif

return prs;

}

/*

* As an alternative to a full TParserInit one can create a

* TParserCopy which basically is a regular TParser without a private

* copy of the string - instead it uses the one from another TParser.

* This is useful because at some places TParsers are created

* recursively and the repeated copying around of the strings can

* cause major inefficiency if the source string is long.

* The new parser starts parsing at the original's current position.

*

* Obviously one must not close the original TParser before the copy.

*/

static TParser *

TParserCopyInit(const TParser *orig)

{

TParser *prs = (TParser *) palloc0(sizeof(TParser));

prs->charmaxlen = orig->charmaxlen;

prs->str = orig->str + orig->state->posbyte;

prs->lenstr = orig->lenstr - orig->state->posbyte;

prs->usewide = orig->usewide;

if (orig->pgwstr)

prs->pgwstr = orig->pgwstr + orig->state->poschar;

if (orig->wstr)

prs->wstr = orig->wstr + orig->state->poschar;

prs->state = newTParserPosition(NULL);

prs->state->state = TPS_Base;

#ifdef WPARSER_TRACE

/* See note above about %.*s */

fprintf(stderr, "parsing copy of \"%.*s\"\n", prs->lenstr, prs->str);

#endif

return prs;

}

static void

TParserClose(TParser *prs)

{

while (prs->state)

{

TParserPosition *ptr = prs->state->prev;

pfree(prs->state);

prs->state = ptr;

}

if (prs->wstr)

pfree(prs->wstr);

if (prs->pgwstr)

pfree(prs->pgwstr);

#ifdef WPARSER_TRACE

fprintf(stderr, "closing parser\n");

#endif

pfree(prs);

}

/*

* Close a parser created with TParserCopyInit

*/

static void

TParserCopyClose(TParser *prs)

{

while (prs->state)

{

TParserPosition *ptr = prs->state->prev;

pfree(prs->state);

prs->state = ptr;

}

#ifdef WPARSER_TRACE

fprintf(stderr, "closing parser copy\n");

#endif

pfree(prs);

}

/*

* Character-type support functions, equivalent to is* macros, but

* working with any possible encodings and locales. Notes:

* - with multibyte encoding and C-locale isw* function may fail

* or give wrong result.

* - multibyte encoding and C-locale often are used for

* Asian languages.

* - if locale is C then we use pgwstr instead of wstr.

*/

#define p_iswhat(type, nonascii) \

\

static int \

p_is##type(TParser *prs) \

{ \

Assert(prs->state); \

if (prs->usewide) \

{ \

if (prs->pgwstr) \

{ \

unsigned int c = *(prs->pgwstr + prs->state->poschar); \

if (c > 0x7f) \

return nonascii; \

return is##type(c); \

} \

return isw##type(*(prs->wstr + prs->state->poschar)); \

} \

return is##type(*(unsigned char *) (prs->str + prs->state->posbyte)); \

} \

\

static int \

p_isnot##type(TParser *prs) \

{ \

return !p_is##type(prs); \

}

/*

* In C locale with a multibyte encoding, any non-ASCII symbol is considered

* an alpha character, but not a member of other char classes.

*/

p_iswhat(alnum, 1)

p_iswhat(alpha, 1)

p_iswhat(digit, 0)

p_iswhat(lower, 0)

p_iswhat(print, 0)

p_iswhat(punct, 0)

p_iswhat(space, 0)

p_iswhat(upper, 0)

p_iswhat(xdigit, 0)

/* p_iseq should be used only for ascii symbols */

static int

p_iseq(TParser *prs, char c)

{

Assert(prs->state);

return ((prs->state->charlen == 1 && *(prs->str + prs->state->posbyte) == c)) ? 1 : 0;

}

static int

p_isEOF(TParser *prs)

{

Assert(prs->state);

return (prs->state->posbyte == prs->lenstr || prs->state->charlen == 0) ? 1 : 0;

}

static int

p_iseqC(TParser *prs)

{

return p_iseq(prs, prs->c);

}

static int

p_isneC(TParser *prs)

{

return !p_iseq(prs, prs->c);

}

static int

p_isascii(TParser *prs)

{

return (prs->state->charlen == 1 && isascii((unsigned char) *(prs->str + prs->state->posbyte))) ? 1 : 0;

}

static int

p_isasclet(TParser *prs)

{

return (p_isascii(prs) && p_isalpha(prs)) ? 1 : 0;

}

static int

p_isurlchar(TParser *prs)

{

char ch;

/* no non-ASCII need apply */

if (prs->state->charlen != 1)

return 0;

ch = *(prs->str + prs->state->posbyte);

/* no spaces or control characters */

if (ch <= 0x20 || ch >= 0x7F)

return 0;

/* reject characters disallowed by RFC 3986 */

switch (ch)

{

case '"':

case '<':

case '>':

case '\\':

case '^':

case '`':

case '{':

case '|':

case '}':

return 0;

}

return 1;

}

/* deliberately suppress unused-function complaints for the above */

void _make_compiler_happy(void);

void

_make_compiler_happy(void)

{

p_isalnum(NULL);

p_isnotalnum(NULL);

p_isalpha(NULL);

p_isnotalpha(NULL);

p_isdigit(NULL);

p_isnotdigit(NULL);

p_islower(NULL);

p_isnotlower(NULL);

p_isprint(NULL);

p_isnotprint(NULL);

p_ispunct(NULL);

p_isnotpunct(NULL);

p_isspace(NULL);

p_isnotspace(NULL);

p_isupper(NULL);

p_isnotupper(NULL);

p_isxdigit(NULL);

p_isnotxdigit(NULL);

p_isEOF(NULL);

p_iseqC(NULL);

p_isneC(NULL);

}

static void

SpecialTags(TParser *prs)

{

switch (prs->state->lenchartoken)

{

case 8: /* </script */

if (pg_strncasecmp(prs->token, "</script", 8) == 0)

prs->ignore = false;

break;

case 7: /* <script || </style */

if (pg_strncasecmp(prs->token, "</style", 7) == 0)

prs->ignore = false;

else if (pg_strncasecmp(prs->token, "<script", 7) == 0)

prs->ignore = true;

break;

case 6: /* <style */

if (pg_strncasecmp(prs->token, "<style", 6) == 0)

prs->ignore = true;

break;

default:

break;

}

}

static void

SpecialFURL(TParser *prs)

{

prs->wanthost = true;

prs->state->posbyte -= prs->state->lenbytetoken;

prs->state->poschar -= prs->state->lenchartoken;

}

static void

SpecialHyphen(TParser *prs)

{

prs->state->posbyte -= prs->state->lenbytetoken;

prs->state->poschar -= prs->state->lenchartoken;

}

static void

SpecialVerVersion(TParser *prs)

{

prs->state->posbyte -= prs->state->lenbytetoken;

prs->state->poschar -= prs->state->lenchartoken;

prs->state->lenbytetoken = 0;

prs->state->lenchartoken = 0;

}

static int

p_isstophost(TParser *prs)

{

if (prs->wanthost)

{

prs->wanthost = false;

return 1;

}

return 0;

}

static int

p_isignore(TParser *prs)

{

return (prs->ignore) ? 1 : 0;

}

static int

p_ishost(TParser *prs)

{

TParser *tmpprs = TParserCopyInit(prs);

int res = 0;

tmpprs->wanthost = true;

if (TParserGet(tmpprs) && tmpprs->type == HOST)

{

prs->state->posbyte += tmpprs->lenbytetoken;

prs->state->poschar += tmpprs->lenchartoken;

prs->state->lenbytetoken += tmpprs->lenbytetoken;

prs->state->lenchartoken += tmpprs->lenchartoken;

prs->state->charlen = tmpprs->state->charlen;

res = 1;

}

TParserCopyClose(tmpprs);

return res;

}

static int

p_isURLPath(TParser *prs)

{

TParser *tmpprs = TParserCopyInit(prs);

int res = 0;

tmpprs->state = newTParserPosition(tmpprs->state);

tmpprs->state->state = TPS_InURLPathFirst;

if (TParserGet(tmpprs) && tmpprs->type == URLPATH)

{

prs->state->posbyte += tmpprs->lenbytetoken;

prs->state->poschar += tmpprs->lenchartoken;

prs->state->lenbytetoken += tmpprs->lenbytetoken;

prs->state->lenchartoken += tmpprs->lenchartoken;

prs->state->charlen = tmpprs->state->charlen;

res = 1;

}

TParserCopyClose(tmpprs);

return res;

}

/*

* returns true if current character has zero display length or

* it's a special sign in several languages. Such characters

* aren't a word-breaker although they aren't an isalpha.

* In beginning of word they aren't a part of it.

*/

static int

p_isspecial(TParser *prs)

{

/*

* pg_dsplen could return -1 which means error or control character

*/

if (pg_dsplen(prs->str + prs->state->posbyte) == 0)

return 1;

/*

* Unicode Characters in the 'Mark, Spacing Combining' Category That

* characters are not alpha although they are not breakers of word too.

* Check that only in utf encoding, because other encodings aren't

* supported by postgres or even exists.

*/

if (GetDatabaseEncoding() == PG_UTF8 && prs->usewide)

{

static const pg_wchar strange_letter[] = {

/*

* use binary search, so elements should be ordered

*/

0x0903, /* DEVANAGARI SIGN VISARGA */

0x093E, /* DEVANAGARI VOWEL SIGN AA */

0x093F, /* DEVANAGARI VOWEL SIGN I */

0x0940, /* DEVANAGARI VOWEL SIGN II */

0x0949, /* DEVANAGARI VOWEL SIGN CANDRA O */

0x094A, /* DEVANAGARI VOWEL SIGN SHORT O */

0x094B, /* DEVANAGARI VOWEL SIGN O */

0x094C, /* DEVANAGARI VOWEL SIGN AU */

0x0982, /* BENGALI SIGN ANUSVARA */

0x0983, /* BENGALI SIGN VISARGA */

0x09BE, /* BENGALI VOWEL SIGN AA */

0x09BF, /* BENGALI VOWEL SIGN I */

0x09C0, /* BENGALI VOWEL SIGN II */

0x09C7, /* BENGALI VOWEL SIGN E */

0x09C8, /* BENGALI VOWEL SIGN AI */

0x09CB, /* BENGALI VOWEL SIGN O */

0x09CC, /* BENGALI VOWEL SIGN AU */

0x09D7, /* BENGALI AU LENGTH MARK */

0x0A03, /* GURMUKHI SIGN VISARGA */

0x0A3E, /* GURMUKHI VOWEL SIGN AA */

0x0A3F, /* GURMUKHI VOWEL SIGN I */

0x0A40, /* GURMUKHI VOWEL SIGN II */

0x0A83, /* GUJARATI SIGN VISARGA */

0x0ABE, /* GUJARATI VOWEL SIGN AA */

0x0ABF, /* GUJARATI VOWEL SIGN I */

0x0AC0, /* GUJARATI VOWEL SIGN II */

0x0AC9, /* GUJARATI VOWEL SIGN CANDRA O */

0x0ACB, /* GUJARATI VOWEL SIGN O */

0x0ACC, /* GUJARATI VOWEL SIGN AU */

0x0B02, /* ORIYA SIGN ANUSVARA */

0x0B03, /* ORIYA SIGN VISARGA */

0x0B3E, /* ORIYA VOWEL SIGN AA */

0x0B40, /* ORIYA VOWEL SIGN II */

0x0B47, /* ORIYA VOWEL SIGN E */

0x0B48, /* ORIYA VOWEL SIGN AI */

0x0B4B, /* ORIYA VOWEL SIGN O */

0x0B4C, /* ORIYA VOWEL SIGN AU */

0x0B57, /* ORIYA AU LENGTH MARK */

0x0BBE, /* TAMIL VOWEL SIGN AA */

0x0BBF, /* TAMIL VOWEL SIGN I */

0x0BC1, /* TAMIL VOWEL SIGN U */

0x0BC2, /* TAMIL VOWEL SIGN UU */

0x0BC6, /* TAMIL VOWEL SIGN E */

0x0BC7, /* TAMIL VOWEL SIGN EE */

0x0BC8, /* TAMIL VOWEL SIGN AI */

0x0BCA, /* TAMIL VOWEL SIGN O */

0x0BCB, /* TAMIL VOWEL SIGN OO */

0x0BCC, /* TAMIL VOWEL SIGN AU */

0x0BD7, /* TAMIL AU LENGTH MARK */

0x0C01, /* TELUGU SIGN CANDRABINDU */

0x0C02, /* TELUGU SIGN ANUSVARA */

0x0C03, /* TELUGU SIGN VISARGA */

0x0C41, /* TELUGU VOWEL SIGN U */

0x0C42, /* TELUGU VOWEL SIGN UU */

0x0C43, /* TELUGU VOWEL SIGN VOCALIC R */

0x0C44, /* TELUGU VOWEL SIGN VOCALIC RR */

0x0C82, /* KANNADA SIGN ANUSVARA */

0x0C83, /* KANNADA SIGN VISARGA */

0x0CBE, /* KANNADA VOWEL SIGN AA */

0x0CC0, /* KANNADA VOWEL SIGN II */

0x0CC1, /* KANNADA VOWEL SIGN U */

0x0CC2, /* KANNADA VOWEL SIGN UU */

0x0CC3, /* KANNADA VOWEL SIGN VOCALIC R */

0x0CC4, /* KANNADA VOWEL SIGN VOCALIC RR */

0x0CC7, /* KANNADA VOWEL SIGN EE */

0x0CC8, /* KANNADA VOWEL SIGN AI */

0x0CCA, /* KANNADA VOWEL SIGN O */

0x0CCB, /* KANNADA VOWEL SIGN OO */

0x0CD5, /* KANNADA LENGTH MARK */

0x0CD6, /* KANNADA AI LENGTH MARK */

0x0D02, /* MALAYALAM SIGN ANUSVARA */

0x0D03, /* MALAYALAM SIGN VISARGA */

0x0D3E, /* MALAYALAM VOWEL SIGN AA */

0x0D3F, /* MALAYALAM VOWEL SIGN I */

0x0D40, /* MALAYALAM VOWEL SIGN II */

0x0D46, /* MALAYALAM VOWEL SIGN E */

0x0D47, /* MALAYALAM VOWEL SIGN EE */

0x0D48, /* MALAYALAM VOWEL SIGN AI */

0x0D4A, /* MALAYALAM VOWEL SIGN O */

0x0D4B, /* MALAYALAM VOWEL SIGN OO */

0x0D4C, /* MALAYALAM VOWEL SIGN AU */

0x0D57, /* MALAYALAM AU LENGTH MARK */

0x0D82, /* SINHALA SIGN ANUSVARAYA */

0x0D83, /* SINHALA SIGN VISARGAYA */

0x0DCF, /* SINHALA VOWEL SIGN AELA-PILLA */

0x0DD0, /* SINHALA VOWEL SIGN KETTI AEDA-PILLA */

0x0DD1, /* SINHALA VOWEL SIGN DIGA AEDA-PILLA */

0x0DD8, /* SINHALA VOWEL SIGN GAETTA-PILLA */

0x0DD9, /* SINHALA VOWEL SIGN KOMBUVA */

0x0DDA, /* SINHALA VOWEL SIGN DIGA KOMBUVA */

0x0DDB, /* SINHALA VOWEL SIGN KOMBU DEKA */

0x0DDC, /* SINHALA VOWEL SIGN KOMBUVA HAA AELA-PILLA */

0x0DDD, /* SINHALA VOWEL SIGN KOMBUVA HAA DIGA

* AELA-PILLA */

0x0DDE, /* SINHALA VOWEL SIGN KOMBUVA HAA GAYANUKITTA */

0x0DDF, /* SINHALA VOWEL SIGN GAYANUKITTA */

0x0DF2, /* SINHALA VOWEL SIGN DIGA GAETTA-PILLA */

0x0DF3, /* SINHALA VOWEL SIGN DIGA GAYANUKITTA */

0x0F3E, /* TIBETAN SIGN YAR TSHES */

0x0F3F, /* TIBETAN SIGN MAR TSHES */

0x0F7F, /* TIBETAN SIGN RNAM BCAD */

0x102B, /* MYANMAR VOWEL SIGN TALL AA */

0x102C, /* MYANMAR VOWEL SIGN AA */

0x1031, /* MYANMAR VOWEL SIGN E */

0x1038, /* MYANMAR SIGN VISARGA */

0x103B, /* MYANMAR CONSONANT SIGN MEDIAL YA */

0x103C, /* MYANMAR CONSONANT SIGN MEDIAL RA */

0x1056, /* MYANMAR VOWEL SIGN VOCALIC R */

0x1057, /* MYANMAR VOWEL SIGN VOCALIC RR */

0x1062, /* MYANMAR VOWEL SIGN SGAW KAREN EU */

0x1063, /* MYANMAR TONE MARK SGAW KAREN HATHI */

0x1064, /* MYANMAR TONE MARK SGAW KAREN KE PHO */

0x1067, /* MYANMAR VOWEL SIGN WESTERN PWO KAREN EU */

0x1068, /* MYANMAR VOWEL SIGN WESTERN PWO KAREN UE */

0x1069, /* MYANMAR SIGN WESTERN PWO KAREN TONE-1 */

0x106A, /* MYANMAR SIGN WESTERN PWO KAREN TONE-2 */

0x106B, /* MYANMAR SIGN WESTERN PWO KAREN TONE-3 */

0x106C, /* MYANMAR SIGN WESTERN PWO KAREN TONE-4 */

0x106D, /* MYANMAR SIGN WESTERN PWO KAREN TONE-5 */

0x1083, /* MYANMAR VOWEL SIGN SHAN AA */

0x1084, /* MYANMAR VOWEL SIGN SHAN E */

0x1087, /* MYANMAR SIGN SHAN TONE-2 */

0x1088, /* MYANMAR SIGN SHAN TONE-3 */

0x1089, /* MYANMAR SIGN SHAN TONE-5 */

0x108A, /* MYANMAR SIGN SHAN TONE-6 */

0x108B, /* MYANMAR SIGN SHAN COUNCIL TONE-2 */

0x108C, /* MYANMAR SIGN SHAN COUNCIL TONE-3 */

0x108F, /* MYANMAR SIGN RUMAI PALAUNG TONE-5 */

0x17B6, /* KHMER VOWEL SIGN AA */

0x17BE, /* KHMER VOWEL SIGN OE */

0x17BF, /* KHMER VOWEL SIGN YA */

0x17C0, /* KHMER VOWEL SIGN IE */

0x17C1, /* KHMER VOWEL SIGN E */

0x17C2, /* KHMER VOWEL SIGN AE */

0x17C3, /* KHMER VOWEL SIGN AI */

0x17C4, /* KHMER VOWEL SIGN OO */

0x17C5, /* KHMER VOWEL SIGN AU */

0x17C7, /* KHMER SIGN REAHMUK */

0x17C8, /* KHMER SIGN YUUKALEAPINTU */

0x1923, /* LIMBU VOWEL SIGN EE */

0x1924, /* LIMBU VOWEL SIGN AI */

0x1925, /* LIMBU VOWEL SIGN OO */

0x1926, /* LIMBU VOWEL SIGN AU */

0x1929, /* LIMBU SUBJOINED LETTER YA */

0x192A, /* LIMBU SUBJOINED LETTER RA */

0x192B, /* LIMBU SUBJOINED LETTER WA */

0x1930, /* LIMBU SMALL LETTER KA */

0x1931, /* LIMBU SMALL LETTER NGA */

0x1933, /* LIMBU SMALL LETTER TA */

0x1934, /* LIMBU SMALL LETTER NA */

0x1935, /* LIMBU SMALL LETTER PA */

0x1936, /* LIMBU SMALL LETTER MA */

0x1937, /* LIMBU SMALL LETTER RA */

0x1938, /* LIMBU SMALL LETTER LA */

0x19B0, /* NEW TAI LUE VOWEL SIGN VOWEL SHORTENER */

0x19B1, /* NEW TAI LUE VOWEL SIGN AA */

0x19B2, /* NEW TAI LUE VOWEL SIGN II */

0x19B3, /* NEW TAI LUE VOWEL SIGN U */

0x19B4, /* NEW TAI LUE VOWEL SIGN UU */

0x19B5, /* NEW TAI LUE VOWEL SIGN E */

0x19B6, /* NEW TAI LUE VOWEL SIGN AE */

0x19B7, /* NEW TAI LUE VOWEL SIGN O */

0x19B8, /* NEW TAI LUE VOWEL SIGN OA */

0x19B9, /* NEW TAI LUE VOWEL SIGN UE */

0x19BA, /* NEW TAI LUE VOWEL SIGN AY */

0x19BB, /* NEW TAI LUE VOWEL SIGN AAY */

0x19BC, /* NEW TAI LUE VOWEL SIGN UY */

0x19BD, /* NEW TAI LUE VOWEL SIGN OY */

0x19BE, /* NEW TAI LUE VOWEL SIGN OAY */

0x19BF, /* NEW TAI LUE VOWEL SIGN UEY */

0x19C0, /* NEW TAI LUE VOWEL SIGN IY */

0x19C8, /* NEW TAI LUE TONE MARK-1 */

0x19C9, /* NEW TAI LUE TONE MARK-2 */

0x1A19, /* BUGINESE VOWEL SIGN E */

0x1A1A, /* BUGINESE VOWEL SIGN O */

0x1A1B, /* BUGINESE VOWEL SIGN AE */

0x1B04, /* BALINESE SIGN BISAH */

0x1B35, /* BALINESE VOWEL SIGN TEDUNG */

0x1B3B, /* BALINESE VOWEL SIGN RA REPA TEDUNG */

0x1B3D, /* BALINESE VOWEL SIGN LA LENGA TEDUNG */

0x1B3E, /* BALINESE VOWEL SIGN TALING */

0x1B3F, /* BALINESE VOWEL SIGN TALING REPA */

0x1B40, /* BALINESE VOWEL SIGN TALING TEDUNG */

0x1B41, /* BALINESE VOWEL SIGN TALING REPA TEDUNG */

0x1B43, /* BALINESE VOWEL SIGN PEPET TEDUNG */

0x1B44, /* BALINESE ADEG ADEG */

0x1B82, /* SUNDANESE SIGN PANGWISAD */

0x1BA1, /* SUNDANESE CONSONANT SIGN PAMINGKAL */

0x1BA6, /* SUNDANESE VOWEL SIGN PANAELAENG */

0x1BA7, /* SUNDANESE VOWEL SIGN PANOLONG */

0x1BAA, /* SUNDANESE SIGN PAMAAEH */

0x1C24, /* LEPCHA SUBJOINED LETTER YA */

0x1C25, /* LEPCHA SUBJOINED LETTER RA */

0x1C26, /* LEPCHA VOWEL SIGN AA */

0x1C27, /* LEPCHA VOWEL SIGN I */

0x1C28, /* LEPCHA VOWEL SIGN O */

0x1C29, /* LEPCHA VOWEL SIGN OO */

0x1C2A, /* LEPCHA VOWEL SIGN U */

0x1C2B, /* LEPCHA VOWEL SIGN UU */

0x1C34, /* LEPCHA CONSONANT SIGN NYIN-DO */

0x1C35, /* LEPCHA CONSONANT SIGN KANG */

0xA823, /* SYLOTI NAGRI VOWEL SIGN A */

0xA824, /* SYLOTI NAGRI VOWEL SIGN I */

0xA827, /* SYLOTI NAGRI VOWEL SIGN OO */

0xA880, /* SAURASHTRA SIGN ANUSVARA */

0xA881, /* SAURASHTRA SIGN VISARGA */

0xA8B4, /* SAURASHTRA CONSONANT SIGN HAARU */

0xA8B5, /* SAURASHTRA VOWEL SIGN AA */

0xA8B6, /* SAURASHTRA VOWEL SIGN I */

0xA8B7, /* SAURASHTRA VOWEL SIGN II */

0xA8B8, /* SAURASHTRA VOWEL SIGN U */

0xA8B9, /* SAURASHTRA VOWEL SIGN UU */

0xA8BA, /* SAURASHTRA VOWEL SIGN VOCALIC R */

0xA8BB, /* SAURASHTRA VOWEL SIGN VOCALIC RR */

0xA8BC, /* SAURASHTRA VOWEL SIGN VOCALIC L */

0xA8BD, /* SAURASHTRA VOWEL SIGN VOCALIC LL */

0xA8BE, /* SAURASHTRA VOWEL SIGN E */

0xA8BF, /* SAURASHTRA VOWEL SIGN EE */

0xA8C0, /* SAURASHTRA VOWEL SIGN AI */

0xA8C1, /* SAURASHTRA VOWEL SIGN O */

0xA8C2, /* SAURASHTRA VOWEL SIGN OO */

0xA8C3, /* SAURASHTRA VOWEL SIGN AU */

0xA952, /* REJANG CONSONANT SIGN H */

0xA953, /* REJANG VIRAMA */

0xAA2F, /* CHAM VOWEL SIGN O */

0xAA30, /* CHAM VOWEL SIGN AI */

0xAA33, /* CHAM CONSONANT SIGN YA */

0xAA34, /* CHAM CONSONANT SIGN RA */

0xAA4D /* CHAM CONSONANT SIGN FINAL H */

};

const pg_wchar *StopLow = strange_letter,

*StopHigh = strange_letter + lengthof(strange_letter),

*StopMiddle;

pg_wchar c;

if (prs->pgwstr)

c = *(prs->pgwstr + prs->state->poschar);

else

c = (pg_wchar) *(prs->wstr + prs->state->poschar);

while (StopLow < StopHigh)

{

StopMiddle = StopLow + ((StopHigh - StopLow) >> 1);

if (*StopMiddle == c)

return 1;

else if (*StopMiddle < c)

StopLow = StopMiddle + 1;

else

StopHigh = StopMiddle;

}

}

return 0;

}

/*

* Table of state/action of parser

*/

static const TParserStateActionItem actionTPS_Base[] = {

{p_isEOF, 0, A_NEXT, TPS_Null, 0, NULL},

{p_iseqC, '<', A_PUSH, TPS_InTagFirst, 0, NULL},

{p_isignore, 0, A_NEXT, TPS_InSpace, 0, NULL},

{p_isasclet, 0, A_NEXT, TPS_InAsciiWord, 0, NULL},

{p_isalpha, 0, A_NEXT, TPS_InWord, 0, NULL},

{p_isdigit, 0, A_NEXT, TPS_InUnsignedInt, 0, NULL},

{p_iseqC, '-', A_PUSH, TPS_InSignedIntFirst, 0, NULL},

{p_iseqC, '+', A_PUSH, TPS_InSignedIntFirst, 0, NULL},

{p_iseqC, '&', A_PUSH, TPS_InXMLEntityFirst, 0, NULL},

{p_iseqC, '~', A_PUSH, TPS_InFileTwiddle, 0, NULL},

{p_iseqC, '/', A_PUSH, TPS_InFileFirst, 0, NULL},

{p_iseqC, '.', A_PUSH, TPS_InPathFirstFirst, 0, NULL},

{NULL, 0, A_NEXT, TPS_InSpace, 0, NULL}

};

static const TParserStateActionItem actionTPS_InNumWord[] = {

{p_isEOF, 0, A_BINGO, TPS_Base, NUMWORD, NULL},

{p_isalnum, 0, A_NEXT, TPS_InNumWord, 0, NULL},

{p_isspecial, 0, A_NEXT, TPS_InNumWord, 0, NULL},

{p_iseqC, '@', A_PUSH, TPS_InEmail, 0, NULL},

{p_iseqC, '/', A_PUSH, TPS_InFileFirst, 0, NULL},

{p_iseqC, '.', A_PUSH, TPS_InFileNext, 0, NULL},