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wparser_def.c
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1 /*-------------------------------------------------------------------------
2  *
3  * wparser_def.c
4  * Default text search parser
5  *
6  * Portions Copyright (c) 1996-2023, PostgreSQL Global Development Group
7  *
8  *
9  * IDENTIFICATION
10  * src/backend/tsearch/wparser_def.c
11  *
12  *-------------------------------------------------------------------------
13  */
14 
15 #include "postgres.h"
16 
17 #include <limits.h>
18 
19 #include "catalog/pg_collation.h"
20 #include "commands/defrem.h"
21 #include "tsearch/ts_locale.h"
22 #include "tsearch/ts_public.h"
23 #include "tsearch/ts_type.h"
24 #include "tsearch/ts_utils.h"
25 #include "utils/builtins.h"
26 
27 
28 /* Define me to enable tracing of parser behavior */
29 /* #define WPARSER_TRACE */
30 
31 
32 /* Output token categories */
33 
34 #define ASCIIWORD 1
35 #define WORD_T 2
36 #define NUMWORD 3
37 #define EMAIL 4
38 #define URL_T 5
39 #define HOST 6
40 #define SCIENTIFIC 7
41 #define VERSIONNUMBER 8
42 #define NUMPARTHWORD 9
43 #define PARTHWORD 10
44 #define ASCIIPARTHWORD 11
45 #define SPACE 12
46 #define TAG_T 13
47 #define PROTOCOL 14
48 #define NUMHWORD 15
49 #define ASCIIHWORD 16
50 #define HWORD 17
51 #define URLPATH 18
52 #define FILEPATH 19
53 #define DECIMAL_T 20
54 #define SIGNEDINT 21
55 #define UNSIGNEDINT 22
56 #define XMLENTITY 23
57 
58 #define LASTNUM 23
59 
60 static const char *const tok_alias[] = {
61  "",
62  "asciiword",
63  "word",
64  "numword",
65  "email",
66  "url",
67  "host",
68  "sfloat",
69  "version",
70  "hword_numpart",
71  "hword_part",
72  "hword_asciipart",
73  "blank",
74  "tag",
75  "protocol",
76  "numhword",
77  "asciihword",
78  "hword",
79  "url_path",
80  "file",
81  "float",
82  "int",
83  "uint",
84  "entity"
85 };
86 
87 static const char *const lex_descr[] = {
88  "",
89  "Word, all ASCII",
90  "Word, all letters",
91  "Word, letters and digits",
92  "Email address",
93  "URL",
94  "Host",
95  "Scientific notation",
96  "Version number",
97  "Hyphenated word part, letters and digits",
98  "Hyphenated word part, all letters",
99  "Hyphenated word part, all ASCII",
100  "Space symbols",
101  "XML tag",
102  "Protocol head",
103  "Hyphenated word, letters and digits",
104  "Hyphenated word, all ASCII",
105  "Hyphenated word, all letters",
106  "URL path",
107  "File or path name",
108  "Decimal notation",
109  "Signed integer",
110  "Unsigned integer",
111  "XML entity"
112 };
113 
114 
115 /* Parser states */
116 
117 typedef enum
118 {
119  TPS_Base = 0,
120  TPS_InNumWord,
121  TPS_InAsciiWord,
122  TPS_InWord,
123  TPS_InUnsignedInt,
124  TPS_InSignedIntFirst,
125  TPS_InSignedInt,
126  TPS_InSpace,
127  TPS_InUDecimalFirst,
128  TPS_InUDecimal,
129  TPS_InDecimalFirst,
130  TPS_InDecimal,
131  TPS_InVerVersion,
132  TPS_InSVerVersion,
133  TPS_InVersionFirst,
134  TPS_InVersion,
135  TPS_InMantissaFirst,
136  TPS_InMantissaSign,
137  TPS_InMantissa,
138  TPS_InXMLEntityFirst,
139  TPS_InXMLEntity,
140  TPS_InXMLEntityNumFirst,
141  TPS_InXMLEntityNum,
142  TPS_InXMLEntityHexNumFirst,
143  TPS_InXMLEntityHexNum,
144  TPS_InXMLEntityEnd,
145  TPS_InTagFirst,
146  TPS_InXMLBegin,
147  TPS_InTagCloseFirst,
148  TPS_InTagName,
149  TPS_InTagBeginEnd,
150  TPS_InTag,
151  TPS_InTagEscapeK,
152  TPS_InTagEscapeKK,
153  TPS_InTagBackSleshed,
154  TPS_InTagEnd,
155  TPS_InCommentFirst,
156  TPS_InCommentLast,
157  TPS_InComment,
158  TPS_InCloseCommentFirst,
159  TPS_InCloseCommentLast,
160  TPS_InCommentEnd,
161  TPS_InHostFirstDomain,
162  TPS_InHostDomainSecond,
163  TPS_InHostDomain,
164  TPS_InPortFirst,
165  TPS_InPort,
166  TPS_InHostFirstAN,
167  TPS_InHost,
168  TPS_InEmail,
169  TPS_InFileFirst,
170  TPS_InFileTwiddle,
171  TPS_InPathFirst,
172  TPS_InPathFirstFirst,
173  TPS_InPathSecond,
174  TPS_InFile,
175  TPS_InFileNext,
176  TPS_InURLPathFirst,
177  TPS_InURLPathStart,
178  TPS_InURLPath,
179  TPS_InFURL,
180  TPS_InProtocolFirst,
181  TPS_InProtocolSecond,
182  TPS_InProtocolEnd,
183  TPS_InHyphenAsciiWordFirst,
184  TPS_InHyphenAsciiWord,
185  TPS_InHyphenWordFirst,
186  TPS_InHyphenWord,
187  TPS_InHyphenNumWordFirst,
188  TPS_InHyphenNumWord,
189  TPS_InHyphenDigitLookahead,
190  TPS_InParseHyphen,
191  TPS_InParseHyphenHyphen,
192  TPS_InHyphenWordPart,
193  TPS_InHyphenAsciiWordPart,
194  TPS_InHyphenNumWordPart,
195  TPS_InHyphenUnsignedInt,
196  TPS_Null /* last state (fake value) */
197 } TParserState;
198 
199 /* forward declaration */
200 struct TParser;
201 
202 typedef int (*TParserCharTest) (struct TParser *); /* any p_is* functions
203  * except p_iseq */
204 typedef void (*TParserSpecial) (struct TParser *); /* special handler for
205  * special cases... */
206 
207 typedef struct
208 {
209  TParserCharTest isclass;
210  char c;
211  uint16 flags;
212  TParserState tostate;
213  int type;
214  TParserSpecial special;
215 } TParserStateActionItem;
216 
217 /* Flag bits in TParserStateActionItem.flags */
218 #define A_NEXT 0x0000
219 #define A_BINGO 0x0001
220 #define A_POP 0x0002
221 #define A_PUSH 0x0004
222 #define A_RERUN 0x0008
223 #define A_CLEAR 0x0010
224 #define A_MERGE 0x0020
225 #define A_CLRALL 0x0040
226 
227 typedef struct TParserPosition
228 {
229  int posbyte; /* position of parser in bytes */
230  int poschar; /* position of parser in characters */
231  int charlen; /* length of current char */
232  int lenbytetoken; /* length of token-so-far in bytes */
233  int lenchartoken; /* and in chars */
234  TParserState state;
235  struct TParserPosition *prev;
236  const TParserStateActionItem *pushedAtAction;
237 } TParserPosition;
238 
239 typedef struct TParser
240 {
241  /* string and position information */
242  char *str; /* multibyte string */
243  int lenstr; /* length of mbstring */
244  wchar_t *wstr; /* wide character string */
245  pg_wchar *pgwstr; /* wide character string for C-locale */
246  bool usewide;
247 
248  /* State of parse */
249  int charmaxlen;
250  TParserPosition *state;
251  bool ignore;
252  bool wanthost;
253 
254  /* silly char */
255  char c;
256 
257  /* out */
258  char *token;
259  int lenbytetoken;
260  int lenchartoken;
261  int type;
262 } TParser;
263 
264 
265 /* forward decls here */
266 static bool TParserGet(TParser *prs);
267 
268 
269 static TParserPosition *
270 newTParserPosition(TParserPosition *prev)
271 {
272  TParserPosition *res = (TParserPosition *) palloc(sizeof(TParserPosition));
273 
274  if (prev)
275  memcpy(res, prev, sizeof(TParserPosition));
276  else
277  memset(res, 0, sizeof(TParserPosition));
278 
279  res->prev = prev;
280 
281  res->pushedAtAction = NULL;
282 
283  return res;
284 }
285 
286 static TParser *
287 TParserInit(char *str, int len)
288 {
289  TParser *prs = (TParser *) palloc0(sizeof(TParser));
290 
291  prs->charmaxlen = pg_database_encoding_max_length();
292  prs->str = str;
293  prs->lenstr = len;
294 
295  /*
296  * Use wide char code only when max encoding length > 1.
297  */
298  if (prs->charmaxlen > 1)
299  {
300  Oid collation = DEFAULT_COLLATION_OID; /* TODO */
301  pg_locale_t mylocale = 0; /* TODO */
302 
303  prs->usewide = true;
304  if (lc_ctype_is_c(collation))
305  {
306  /*
307  * char2wchar doesn't work for C-locale and sizeof(pg_wchar) could
308  * be different from sizeof(wchar_t)
309  */
310  prs->pgwstr = (pg_wchar *) palloc(sizeof(pg_wchar) * (prs->lenstr + 1));
311  pg_mb2wchar_with_len(prs->str, prs->pgwstr, prs->lenstr);
312  }
313  else
314  {
315  prs->wstr = (wchar_t *) palloc(sizeof(wchar_t) * (prs->lenstr + 1));
316  char2wchar(prs->wstr, prs->lenstr + 1, prs->str, prs->lenstr,
317  mylocale);
318  }
319  }
320  else
321  prs->usewide = false;
322 
323  prs->state = newTParserPosition(NULL);
324  prs->state->state = TPS_Base;
325 
326 #ifdef WPARSER_TRACE
327  fprintf(stderr, "parsing \"%.*s\"\n", len, str);
328 #endif
329 
330  return prs;
331 }
332 
333 /*
334  * As an alternative to a full TParserInit one can create a
335  * TParserCopy which basically is a regular TParser without a private
336  * copy of the string - instead it uses the one from another TParser.
337  * This is useful because at some places TParsers are created
338  * recursively and the repeated copying around of the strings can
339  * cause major inefficiency if the source string is long.
340  * The new parser starts parsing at the original's current position.
341  *
342  * Obviously one must not close the original TParser before the copy.
343  */
344 static TParser *
345 TParserCopyInit(const TParser *orig)
346 {
347  TParser *prs = (TParser *) palloc0(sizeof(TParser));
348 
349  prs->charmaxlen = orig->charmaxlen;
350  prs->str = orig->str + orig->state->posbyte;
351  prs->lenstr = orig->lenstr - orig->state->posbyte;
352  prs->usewide = orig->usewide;
353 
354  if (orig->pgwstr)
355  prs->pgwstr = orig->pgwstr + orig->state->poschar;
356  if (orig->wstr)
357  prs->wstr = orig->wstr + orig->state->poschar;
358 
359  prs->state = newTParserPosition(NULL);
360  prs->state->state = TPS_Base;
361 
362 #ifdef WPARSER_TRACE
363  fprintf(stderr, "parsing copy of \"%.*s\"\n", prs->lenstr, prs->str);
364 #endif
365 
366  return prs;
367 }
368 
369 
370 static void
371 TParserClose(TParser *prs)
372 {
373  while (prs->state)
374  {
375  TParserPosition *ptr = prs->state->prev;
376 
377  pfree(prs->state);
378  prs->state = ptr;
379  }
380 
381  if (prs->wstr)
382  pfree(prs->wstr);
383  if (prs->pgwstr)
384  pfree(prs->pgwstr);
385 
386 #ifdef WPARSER_TRACE
387  fprintf(stderr, "closing parser\n");
388 #endif
389  pfree(prs);
390 }
391 
392 /*
393  * Close a parser created with TParserCopyInit
394  */
395 static void
396 TParserCopyClose(TParser *prs)
397 {
398  while (prs->state)
399  {
400  TParserPosition *ptr = prs->state->prev;
401 
402  pfree(prs->state);
403  prs->state = ptr;
404  }
405 
406 #ifdef WPARSER_TRACE
407  fprintf(stderr, "closing parser copy\n");
408 #endif
409  pfree(prs);
410 }
411 
412 
413 /*
414  * Character-type support functions, equivalent to is* macros, but
415  * working with any possible encodings and locales. Notes:
416  * - with multibyte encoding and C-locale isw* function may fail
417  * or give wrong result.
418  * - multibyte encoding and C-locale often are used for
419  * Asian languages.
420  * - if locale is C then we use pgwstr instead of wstr.
421  */
422 
423 #define p_iswhat(type, nonascii) \
424  \
425 static int \
426 p_is##type(TParser *prs) \
427 { \
428  Assert(prs->state); \
429  if (prs->usewide) \
430  { \
431  if (prs->pgwstr) \
432  { \
433  unsigned int c = *(prs->pgwstr + prs->state->poschar); \
434  if (c > 0x7f) \
435  return nonascii; \
436  return is##type(c); \
437  } \
438  return isw##type(*(prs->wstr + prs->state->poschar)); \
439  } \
440  return is##type(*(unsigned char *) (prs->str + prs->state->posbyte)); \
441 } \
442  \
443 static int \
444 p_isnot##type(TParser *prs) \
445 { \
446  return !p_is##type(prs); \
447 }
448 
449 /*
450  * In C locale with a multibyte encoding, any non-ASCII symbol is considered
451  * an alpha character, but not a member of other char classes.
452  */
453 p_iswhat(alnum, 1)
454 p_iswhat(alpha, 1)
455 p_iswhat(digit, 0)
456 p_iswhat(lower, 0)
457 p_iswhat(print, 0)
458 p_iswhat(punct, 0)
459 p_iswhat(space, 0)
460 p_iswhat(upper, 0)
461 p_iswhat(xdigit, 0)
462 
463 /* p_iseq should be used only for ascii symbols */
464 
465 static int
466 p_iseq(TParser *prs, char c)
467 {
468  Assert(prs->state);
469  return ((prs->state->charlen == 1 && *(prs->str + prs->state->posbyte) == c)) ? 1 : 0;
470 }
471 
472 static int
473 p_isEOF(TParser *prs)
474 {
475  Assert(prs->state);
476  return (prs->state->posbyte == prs->lenstr || prs->state->charlen == 0) ? 1 : 0;
477 }
478 
479 static int
480 p_iseqC(TParser *prs)
481 {
482  return p_iseq(prs, prs->c);
483 }
484 
485 static int
486 p_isneC(TParser *prs)
487 {
488  return !p_iseq(prs, prs->c);
489 }
490 
491 static int
492 p_isascii(TParser *prs)
493 {
494  return (prs->state->charlen == 1 && isascii((unsigned char) *(prs->str + prs->state->posbyte))) ? 1 : 0;
495 }
496 
497 static int
498 p_isasclet(TParser *prs)
499 {
500  return (p_isascii(prs) && p_isalpha(prs)) ? 1 : 0;
501 }
502 
503 static int
504 p_isurlchar(TParser *prs)
505 {
506  char ch;
507 
508  /* no non-ASCII need apply */
509  if (prs->state->charlen != 1)
510  return 0;
511  ch = *(prs->str + prs->state->posbyte);
512  /* no spaces or control characters */
513  if (ch <= 0x20 || ch >= 0x7F)
514  return 0;
515  /* reject characters disallowed by RFC 3986 */
516  switch (ch)
517  {
518  case '"':
519  case '<':
520  case '>':
521  case '\\':
522  case '^':
523  case '`':
524  case '{':
525  case '|':
526  case '}':
527  return 0;
528  }
529  return 1;
530 }
531 
532 
533 /* deliberately suppress unused-function complaints for the above */
534 void _make_compiler_happy(void);
535 void
536 _make_compiler_happy(void)
537 {
538  p_isalnum(NULL);
539  p_isnotalnum(NULL);
540  p_isalpha(NULL);
541  p_isnotalpha(NULL);
542  p_isdigit(NULL);
543  p_isnotdigit(NULL);
544  p_islower(NULL);
545  p_isnotlower(NULL);
546  p_isprint(NULL);
547  p_isnotprint(NULL);
548  p_ispunct(NULL);
549  p_isnotpunct(NULL);
550  p_isspace(NULL);
551  p_isnotspace(NULL);
552  p_isupper(NULL);
553  p_isnotupper(NULL);
554  p_isxdigit(NULL);
555  p_isnotxdigit(NULL);
556  p_isEOF(NULL);
557  p_iseqC(NULL);
558  p_isneC(NULL);
559 }
560 
561 
562 static void
563 SpecialTags(TParser *prs)
564 {
565  switch (prs->state->lenchartoken)
566  {
567  case 8: /* </script */
568  if (pg_strncasecmp(prs->token, "</script", 8) == 0)
569  prs->ignore = false;
570  break;
571  case 7: /* <script || </style */
572  if (pg_strncasecmp(prs->token, "</style", 7) == 0)
573  prs->ignore = false;
574  else if (pg_strncasecmp(prs->token, "<script", 7) == 0)
575  prs->ignore = true;
576  break;
577  case 6: /* <style */
578  if (pg_strncasecmp(prs->token, "<style", 6) == 0)
579  prs->ignore = true;
580  break;
581  default:
582  break;
583  }
584 }
585 
586 static void
587 SpecialFURL(TParser *prs)
588 {
589  prs->wanthost = true;
590  prs->state->posbyte -= prs->state->lenbytetoken;
591  prs->state->poschar -= prs->state->lenchartoken;
592 }
593 
594 static void
595 SpecialHyphen(TParser *prs)
596 {
597  prs->state->posbyte -= prs->state->lenbytetoken;
598  prs->state->poschar -= prs->state->lenchartoken;
599 }
600 
601 static void
602 SpecialVerVersion(TParser *prs)
603 {
604  prs->state->posbyte -= prs->state->lenbytetoken;
605  prs->state->poschar -= prs->state->lenchartoken;
606  prs->state->lenbytetoken = 0;
607  prs->state->lenchartoken = 0;
608 }
609 
610 static int
611 p_isstophost(TParser *prs)
612 {
613  if (prs->wanthost)
614  {
615  prs->wanthost = false;
616  return 1;
617  }
618  return 0;
619 }
620 
621 static int
622 p_isignore(TParser *prs)
623 {
624  return (prs->ignore) ? 1 : 0;
625 }
626 
627 static int
628 p_ishost(TParser *prs)
629 {
630  TParser *tmpprs = TParserCopyInit(prs);
631  int res = 0;
632 
633  tmpprs->wanthost = true;
634 
635  if (TParserGet(tmpprs) && tmpprs->type == HOST)
636  {
637  prs->state->posbyte += tmpprs->lenbytetoken;
638  prs->state->poschar += tmpprs->lenchartoken;
639  prs->state->lenbytetoken += tmpprs->lenbytetoken;
640  prs->state->lenchartoken += tmpprs->lenchartoken;
641  prs->state->charlen = tmpprs->state->charlen;
642  res = 1;
643  }
644  TParserCopyClose(tmpprs);
645 
646  return res;
647 }
648 
649 static int
650 p_isURLPath(TParser *prs)
651 {
652  TParser *tmpprs = TParserCopyInit(prs);
653  int res = 0;
654 
655  tmpprs->state = newTParserPosition(tmpprs->state);
656  tmpprs->state->state = TPS_InURLPathFirst;
657 
658  if (TParserGet(tmpprs) && tmpprs->type == URLPATH)
659  {
660  prs->state->posbyte += tmpprs->lenbytetoken;
661  prs->state->poschar += tmpprs->lenchartoken;
662  prs->state->lenbytetoken += tmpprs->lenbytetoken;
663  prs->state->lenchartoken += tmpprs->lenchartoken;
664  prs->state->charlen = tmpprs->state->charlen;
665  res = 1;
666  }
667  TParserCopyClose(tmpprs);
668 
669  return res;
670 }
671 
672 /*
673  * returns true if current character has zero display length or
674  * it's a special sign in several languages. Such characters
675  * aren't a word-breaker although they aren't an isalpha.
676  * In beginning of word they aren't a part of it.
677  */
678 static int
679 p_isspecial(TParser *prs)
680 {
681  /*
682  * pg_dsplen could return -1 which means error or control character
683  */
684  if (pg_dsplen(prs->str + prs->state->posbyte) == 0)
685  return 1;
686 
687  /*
688  * Unicode Characters in the 'Mark, Spacing Combining' Category That
689  * characters are not alpha although they are not breakers of word too.
690  * Check that only in utf encoding, because other encodings aren't
691  * supported by postgres or even exists.
692  */
693  if (GetDatabaseEncoding() == PG_UTF8 && prs->usewide)
694  {
695  static const pg_wchar strange_letter[] = {
696  /*
697  * use binary search, so elements should be ordered
698  */
699  0x0903, /* DEVANAGARI SIGN VISARGA */
700  0x093E, /* DEVANAGARI VOWEL SIGN AA */
701  0x093F, /* DEVANAGARI VOWEL SIGN I */
702  0x0940, /* DEVANAGARI VOWEL SIGN II */
703  0x0949, /* DEVANAGARI VOWEL SIGN CANDRA O */
704  0x094A, /* DEVANAGARI VOWEL SIGN SHORT O */
705  0x094B, /* DEVANAGARI VOWEL SIGN O */
706  0x094C, /* DEVANAGARI VOWEL SIGN AU */
707  0x0982, /* BENGALI SIGN ANUSVARA */
708  0x0983, /* BENGALI SIGN VISARGA */
709  0x09BE, /* BENGALI VOWEL SIGN AA */
710  0x09BF, /* BENGALI VOWEL SIGN I */
711  0x09C0, /* BENGALI VOWEL SIGN II */
712  0x09C7, /* BENGALI VOWEL SIGN E */
713  0x09C8, /* BENGALI VOWEL SIGN AI */
714  0x09CB, /* BENGALI VOWEL SIGN O */
715  0x09CC, /* BENGALI VOWEL SIGN AU */
716  0x09D7, /* BENGALI AU LENGTH MARK */
717  0x0A03, /* GURMUKHI SIGN VISARGA */
718  0x0A3E, /* GURMUKHI VOWEL SIGN AA */
719  0x0A3F, /* GURMUKHI VOWEL SIGN I */
720  0x0A40, /* GURMUKHI VOWEL SIGN II */
721  0x0A83, /* GUJARATI SIGN VISARGA */
722  0x0ABE, /* GUJARATI VOWEL SIGN AA */
723  0x0ABF, /* GUJARATI VOWEL SIGN I */
724  0x0AC0, /* GUJARATI VOWEL SIGN II */
725  0x0AC9, /* GUJARATI VOWEL SIGN CANDRA O */
726  0x0ACB, /* GUJARATI VOWEL SIGN O */
727  0x0ACC, /* GUJARATI VOWEL SIGN AU */
728  0x0B02, /* ORIYA SIGN ANUSVARA */
729  0x0B03, /* ORIYA SIGN VISARGA */
730  0x0B3E, /* ORIYA VOWEL SIGN AA */
731  0x0B40, /* ORIYA VOWEL SIGN II */
732  0x0B47, /* ORIYA VOWEL SIGN E */
733  0x0B48, /* ORIYA VOWEL SIGN AI */
734  0x0B4B, /* ORIYA VOWEL SIGN O */
735  0x0B4C, /* ORIYA VOWEL SIGN AU */
736  0x0B57, /* ORIYA AU LENGTH MARK */
737  0x0BBE, /* TAMIL VOWEL SIGN AA */
738  0x0BBF, /* TAMIL VOWEL SIGN I */
739  0x0BC1, /* TAMIL VOWEL SIGN U */
740  0x0BC2, /* TAMIL VOWEL SIGN UU */
741  0x0BC6, /* TAMIL VOWEL SIGN E */
742  0x0BC7, /* TAMIL VOWEL SIGN EE */
743  0x0BC8, /* TAMIL VOWEL SIGN AI */
744  0x0BCA, /* TAMIL VOWEL SIGN O */
745  0x0BCB, /* TAMIL VOWEL SIGN OO */
746  0x0BCC, /* TAMIL VOWEL SIGN AU */
747  0x0BD7, /* TAMIL AU LENGTH MARK */
748  0x0C01, /* TELUGU SIGN CANDRABINDU */
749  0x0C02, /* TELUGU SIGN ANUSVARA */
750  0x0C03, /* TELUGU SIGN VISARGA */
751  0x0C41, /* TELUGU VOWEL SIGN U */
752  0x0C42, /* TELUGU VOWEL SIGN UU */
753  0x0C43, /* TELUGU VOWEL SIGN VOCALIC R */
754  0x0C44, /* TELUGU VOWEL SIGN VOCALIC RR */
755  0x0C82, /* KANNADA SIGN ANUSVARA */
756  0x0C83, /* KANNADA SIGN VISARGA */
757  0x0CBE, /* KANNADA VOWEL SIGN AA */
758  0x0CC0, /* KANNADA VOWEL SIGN II */
759  0x0CC1, /* KANNADA VOWEL SIGN U */
760  0x0CC2, /* KANNADA VOWEL SIGN UU */
761  0x0CC3, /* KANNADA VOWEL SIGN VOCALIC R */
762  0x0CC4, /* KANNADA VOWEL SIGN VOCALIC RR */
763  0x0CC7, /* KANNADA VOWEL SIGN EE */
764  0x0CC8, /* KANNADA VOWEL SIGN AI */
765  0x0CCA, /* KANNADA VOWEL SIGN O */
766  0x0CCB, /* KANNADA VOWEL SIGN OO */
767  0x0CD5, /* KANNADA LENGTH MARK */
768  0x0CD6, /* KANNADA AI LENGTH MARK */
769  0x0D02, /* MALAYALAM SIGN ANUSVARA */
770  0x0D03, /* MALAYALAM SIGN VISARGA */
771  0x0D3E, /* MALAYALAM VOWEL SIGN AA */
772  0x0D3F, /* MALAYALAM VOWEL SIGN I */
773  0x0D40, /* MALAYALAM VOWEL SIGN II */
774  0x0D46, /* MALAYALAM VOWEL SIGN E */
775  0x0D47, /* MALAYALAM VOWEL SIGN EE */
776  0x0D48, /* MALAYALAM VOWEL SIGN AI */
777  0x0D4A, /* MALAYALAM VOWEL SIGN O */
778  0x0D4B, /* MALAYALAM VOWEL SIGN OO */
779  0x0D4C, /* MALAYALAM VOWEL SIGN AU */
780  0x0D57, /* MALAYALAM AU LENGTH MARK */
781  0x0D82, /* SINHALA SIGN ANUSVARAYA */
782  0x0D83, /* SINHALA SIGN VISARGAYA */
783  0x0DCF, /* SINHALA VOWEL SIGN AELA-PILLA */
784  0x0DD0, /* SINHALA VOWEL SIGN KETTI AEDA-PILLA */
785  0x0DD1, /* SINHALA VOWEL SIGN DIGA AEDA-PILLA */
786  0x0DD8, /* SINHALA VOWEL SIGN GAETTA-PILLA */
787  0x0DD9, /* SINHALA VOWEL SIGN KOMBUVA */
788  0x0DDA, /* SINHALA VOWEL SIGN DIGA KOMBUVA */
789  0x0DDB, /* SINHALA VOWEL SIGN KOMBU DEKA */
790  0x0DDC, /* SINHALA VOWEL SIGN KOMBUVA HAA AELA-PILLA */
791  0x0DDD, /* SINHALA VOWEL SIGN KOMBUVA HAA DIGA
792  * AELA-PILLA */
793  0x0DDE, /* SINHALA VOWEL SIGN KOMBUVA HAA GAYANUKITTA */
794  0x0DDF, /* SINHALA VOWEL SIGN GAYANUKITTA */
795  0x0DF2, /* SINHALA VOWEL SIGN DIGA GAETTA-PILLA */
796  0x0DF3, /* SINHALA VOWEL SIGN DIGA GAYANUKITTA */
797  0x0F3E, /* TIBETAN SIGN YAR TSHES */
798  0x0F3F, /* TIBETAN SIGN MAR TSHES */
799  0x0F7F, /* TIBETAN SIGN RNAM BCAD */
800  0x102B, /* MYANMAR VOWEL SIGN TALL AA */
801  0x102C, /* MYANMAR VOWEL SIGN AA */
802  0x1031, /* MYANMAR VOWEL SIGN E */
803  0x1038, /* MYANMAR SIGN VISARGA */
804  0x103B, /* MYANMAR CONSONANT SIGN MEDIAL YA */
805  0x103C, /* MYANMAR CONSONANT SIGN MEDIAL RA */
806  0x1056, /* MYANMAR VOWEL SIGN VOCALIC R */
807  0x1057, /* MYANMAR VOWEL SIGN VOCALIC RR */
808  0x1062, /* MYANMAR VOWEL SIGN SGAW KAREN EU */
809  0x1063, /* MYANMAR TONE MARK SGAW KAREN HATHI */
810  0x1064, /* MYANMAR TONE MARK SGAW KAREN KE PHO */
811  0x1067, /* MYANMAR VOWEL SIGN WESTERN PWO KAREN EU */
812  0x1068, /* MYANMAR VOWEL SIGN WESTERN PWO KAREN UE */
813  0x1069, /* MYANMAR SIGN WESTERN PWO KAREN TONE-1 */
814  0x106A, /* MYANMAR SIGN WESTERN PWO KAREN TONE-2 */
815  0x106B, /* MYANMAR SIGN WESTERN PWO KAREN TONE-3 */
816  0x106C, /* MYANMAR SIGN WESTERN PWO KAREN TONE-4 */
817  0x106D, /* MYANMAR SIGN WESTERN PWO KAREN TONE-5 */
818  0x1083, /* MYANMAR VOWEL SIGN SHAN AA */
819  0x1084, /* MYANMAR VOWEL SIGN SHAN E */
820  0x1087, /* MYANMAR SIGN SHAN TONE-2 */
821  0x1088, /* MYANMAR SIGN SHAN TONE-3 */
822  0x1089, /* MYANMAR SIGN SHAN TONE-5 */
823  0x108A, /* MYANMAR SIGN SHAN TONE-6 */
824  0x108B, /* MYANMAR SIGN SHAN COUNCIL TONE-2 */
825  0x108C, /* MYANMAR SIGN SHAN COUNCIL TONE-3 */
826  0x108F, /* MYANMAR SIGN RUMAI PALAUNG TONE-5 */
827  0x17B6, /* KHMER VOWEL SIGN AA */
828  0x17BE, /* KHMER VOWEL SIGN OE */
829  0x17BF, /* KHMER VOWEL SIGN YA */
830  0x17C0, /* KHMER VOWEL SIGN IE */
831  0x17C1, /* KHMER VOWEL SIGN E */
832  0x17C2, /* KHMER VOWEL SIGN AE */
833  0x17C3, /* KHMER VOWEL SIGN AI */
834  0x17C4, /* KHMER VOWEL SIGN OO */
835  0x17C5, /* KHMER VOWEL SIGN AU */
836  0x17C7, /* KHMER SIGN REAHMUK */
837  0x17C8, /* KHMER SIGN YUUKALEAPINTU */
838  0x1923, /* LIMBU VOWEL SIGN EE */
839  0x1924, /* LIMBU VOWEL SIGN AI */
840  0x1925, /* LIMBU VOWEL SIGN OO */
841  0x1926, /* LIMBU VOWEL SIGN AU */
842  0x1929, /* LIMBU SUBJOINED LETTER YA */
843  0x192A, /* LIMBU SUBJOINED LETTER RA */
844  0x192B, /* LIMBU SUBJOINED LETTER WA */
845  0x1930, /* LIMBU SMALL LETTER KA */
846  0x1931, /* LIMBU SMALL LETTER NGA */
847  0x1933, /* LIMBU SMALL LETTER TA */
848  0x1934, /* LIMBU SMALL LETTER NA */
849  0x1935, /* LIMBU SMALL LETTER PA */
850  0x1936, /* LIMBU SMALL LETTER MA */
851  0x1937, /* LIMBU SMALL LETTER RA */
852  0x1938, /* LIMBU SMALL LETTER LA */
853  0x19B0, /* NEW TAI LUE VOWEL SIGN VOWEL SHORTENER */
854  0x19B1, /* NEW TAI LUE VOWEL SIGN AA */
855  0x19B2, /* NEW TAI LUE VOWEL SIGN II */
856  0x19B3, /* NEW TAI LUE VOWEL SIGN U */
857  0x19B4, /* NEW TAI LUE VOWEL SIGN UU */
858  0x19B5, /* NEW TAI LUE VOWEL SIGN E */
859  0x19B6, /* NEW TAI LUE VOWEL SIGN AE */
860  0x19B7, /* NEW TAI LUE VOWEL SIGN O */
861  0x19B8, /* NEW TAI LUE VOWEL SIGN OA */
862  0x19B9, /* NEW TAI LUE VOWEL SIGN UE */
863  0x19BA, /* NEW TAI LUE VOWEL SIGN AY */
864  0x19BB, /* NEW TAI LUE VOWEL SIGN AAY */
865  0x19BC, /* NEW TAI LUE VOWEL SIGN UY */
866  0x19BD, /* NEW TAI LUE VOWEL SIGN OY */
867  0x19BE, /* NEW TAI LUE VOWEL SIGN OAY */
868  0x19BF, /* NEW TAI LUE VOWEL SIGN UEY */
869  0x19C0, /* NEW TAI LUE VOWEL SIGN IY */
870  0x19C8, /* NEW TAI LUE TONE MARK-1 */
871  0x19C9, /* NEW TAI LUE TONE MARK-2 */
872  0x1A19, /* BUGINESE VOWEL SIGN E */
873  0x1A1A, /* BUGINESE VOWEL SIGN O */
874  0x1A1B, /* BUGINESE VOWEL SIGN AE */
875  0x1B04, /* BALINESE SIGN BISAH */
876  0x1B35, /* BALINESE VOWEL SIGN TEDUNG */
877  0x1B3B, /* BALINESE VOWEL SIGN RA REPA TEDUNG */
878  0x1B3D, /* BALINESE VOWEL SIGN LA LENGA TEDUNG */
879  0x1B3E, /* BALINESE VOWEL SIGN TALING */
880  0x1B3F, /* BALINESE VOWEL SIGN TALING REPA */
881  0x1B40, /* BALINESE VOWEL SIGN TALING TEDUNG */
882  0x1B41, /* BALINESE VOWEL SIGN TALING REPA TEDUNG */
883  0x1B43, /* BALINESE VOWEL SIGN PEPET TEDUNG */
884  0x1B44, /* BALINESE ADEG ADEG */
885  0x1B82, /* SUNDANESE SIGN PANGWISAD */
886  0x1BA1, /* SUNDANESE CONSONANT SIGN PAMINGKAL */
887  0x1BA6, /* SUNDANESE VOWEL SIGN PANAELAENG */
888  0x1BA7, /* SUNDANESE VOWEL SIGN PANOLONG */
889  0x1BAA, /* SUNDANESE SIGN PAMAAEH */
890  0x1C24, /* LEPCHA SUBJOINED LETTER YA */
891  0x1C25, /* LEPCHA SUBJOINED LETTER RA */
892  0x1C26, /* LEPCHA VOWEL SIGN AA */
893  0x1C27, /* LEPCHA VOWEL SIGN I */
894  0x1C28, /* LEPCHA VOWEL SIGN O */
895  0x1C29, /* LEPCHA VOWEL SIGN OO */
896  0x1C2A, /* LEPCHA VOWEL SIGN U */
897  0x1C2B, /* LEPCHA VOWEL SIGN UU */
898  0x1C34, /* LEPCHA CONSONANT SIGN NYIN-DO */
899  0x1C35, /* LEPCHA CONSONANT SIGN KANG */
900  0xA823, /* SYLOTI NAGRI VOWEL SIGN A */
901  0xA824, /* SYLOTI NAGRI VOWEL SIGN I */
902  0xA827, /* SYLOTI NAGRI VOWEL SIGN OO */
903  0xA880, /* SAURASHTRA SIGN ANUSVARA */
904  0xA881, /* SAURASHTRA SIGN VISARGA */
905  0xA8B4, /* SAURASHTRA CONSONANT SIGN HAARU */
906  0xA8B5, /* SAURASHTRA VOWEL SIGN AA */
907  0xA8B6, /* SAURASHTRA VOWEL SIGN I */
908  0xA8B7, /* SAURASHTRA VOWEL SIGN II */
909  0xA8B8, /* SAURASHTRA VOWEL SIGN U */
910  0xA8B9, /* SAURASHTRA VOWEL SIGN UU */
911  0xA8BA, /* SAURASHTRA VOWEL SIGN VOCALIC R */
912  0xA8BB, /* SAURASHTRA VOWEL SIGN VOCALIC RR */
913  0xA8BC, /* SAURASHTRA VOWEL SIGN VOCALIC L */
914  0xA8BD, /* SAURASHTRA VOWEL SIGN VOCALIC LL */
915  0xA8BE, /* SAURASHTRA VOWEL SIGN E */
916  0xA8BF, /* SAURASHTRA VOWEL SIGN EE */
917  0xA8C0, /* SAURASHTRA VOWEL SIGN AI */
918  0xA8C1, /* SAURASHTRA VOWEL SIGN O */
919  0xA8C2, /* SAURASHTRA VOWEL SIGN OO */
920  0xA8C3, /* SAURASHTRA VOWEL SIGN AU */
921  0xA952, /* REJANG CONSONANT SIGN H */
922  0xA953, /* REJANG VIRAMA */
923  0xAA2F, /* CHAM VOWEL SIGN O */
924  0xAA30, /* CHAM VOWEL SIGN AI */
925  0xAA33, /* CHAM CONSONANT SIGN YA */
926  0xAA34, /* CHAM CONSONANT SIGN RA */
927  0xAA4D /* CHAM CONSONANT SIGN FINAL H */
928  };
929  const pg_wchar *StopLow = strange_letter,
930  *StopHigh = strange_letter + lengthof(strange_letter),
931  *StopMiddle;
932  pg_wchar c;
933 
934  if (prs->pgwstr)
935  c = *(prs->pgwstr + prs->state->poschar);
936  else
937  c = (pg_wchar) *(prs->wstr + prs->state->poschar);
938 
939  while (StopLow < StopHigh)
940  {
941  StopMiddle = StopLow + ((StopHigh - StopLow) >> 1);
942  if (*StopMiddle == c)
943  return 1;
944  else if (*StopMiddle < c)
945  StopLow = StopMiddle + 1;
946  else
947  StopHigh = StopMiddle;
948  }
949  }
950 
951  return 0;
952 }
953 
954 /*
955  * Table of state/action of parser
956  */
957 
958 static const TParserStateActionItem actionTPS_Base[] = {
959  {p_isEOF, 0, A_NEXT, TPS_Null, 0, NULL},
960  {p_iseqC, '<', A_PUSH, TPS_InTagFirst, 0, NULL},
961  {p_isignore, 0, A_NEXT, TPS_InSpace, 0, NULL},
962  {p_isasclet, 0, A_NEXT, TPS_InAsciiWord, 0, NULL},
963  {p_isalpha, 0, A_NEXT, TPS_InWord, 0, NULL},
964  {p_isdigit, 0, A_NEXT, TPS_InUnsignedInt, 0, NULL},
965  {p_iseqC, '-', A_PUSH, TPS_InSignedIntFirst, 0, NULL},
966  {p_iseqC, '+', A_PUSH, TPS_InSignedIntFirst, 0, NULL},
967  {p_iseqC, '&', A_PUSH, TPS_InXMLEntityFirst, 0, NULL},
968  {p_iseqC, '~', A_PUSH, TPS_InFileTwiddle, 0, NULL},
969  {p_iseqC, '/', A_PUSH, TPS_InFileFirst, 0, NULL},
970  {p_iseqC, '.', A_PUSH, TPS_InPathFirstFirst, 0, NULL},
971  {NULL, 0, A_NEXT, TPS_InSpace, 0, NULL}
972 };
973 
974 
975 static const TParserStateActionItem actionTPS_InNumWord[] = {
976  {p_isEOF, 0, A_BINGO, TPS_Base, NUMWORD, NULL},
977  {p_isalnum, 0, A_NEXT, TPS_InNumWord, 0, NULL},
978  {p_isspecial, 0, A_NEXT, TPS_InNumWord, 0, NULL},
979  {p_iseqC, '@', A_PUSH, TPS_InEmail, 0, NULL},
980  {p_iseqC, '/', A_PUSH, TPS_InFileFirst, 0, NULL},
981  {p_iseqC, '.', A_PUSH, TPS_InFileNext, 0, NULL},
982  {p_iseqC, '-', A_PUSH, TPS_InHyphenNumWordFirst, 0, NULL},
983  {NULL, 0, A_BINGO, TPS_Base, NUMWORD, NULL}
984 };
985 
986 static const TParserStateActionItem actionTPS_InAsciiWord[] = {
987  {p_isEOF, 0, A_BINGO, TPS_Base, ASCIIWORD, NULL},
988  {p_isasclet, 0, A_NEXT, TPS_Null, 0, NULL},
989  {p_iseqC, '.', A_PUSH, TPS_InHostFirstDomain, 0, NULL},
990  {p_iseqC, '.', A_PUSH, TPS_InFileNext, 0, NULL},
991  {p_iseqC, '-', A_PUSH, TPS_InHostFirstAN, 0, NULL},
992  {p_iseqC, '-', A_PUSH, TPS_InHyphenAsciiWordFirst, 0, NULL},
993  {p_iseqC, '_', A_PUSH, TPS_InHostFirstAN, 0, NULL},
994  {p_iseqC, '@', A_PUSH, TPS_InEmail, 0, NULL},
995  {p_iseqC, ':', A_PUSH, TPS_InProtocolFirst, 0, NULL},
996  {p_iseqC, '/', A_PUSH, TPS_InFileFirst, 0, NULL},
997  {p_isdigit, 0, A_PUSH, TPS_InHost, 0, NULL},
998  {p_isdigit, 0, A_NEXT, TPS_InNumWord, 0, NULL},
999  {p_isalpha, 0, A_NEXT, TPS_InWord, 0, NULL},
1000  {p_isspecial, 0, A_NEXT, TPS_InWord, 0, NULL},
1001  {NULL, 0, A_BINGO, TPS_Base, ASCIIWORD, NULL}
1002 };
1003 
1004 static const TParserStateActionItem actionTPS_InWord[] = {
1005  {p_isEOF, 0, A_BINGO, TPS_Base, WORD_T, NULL},
1006  {p_isalpha, 0, A_NEXT, TPS_Null, 0, NULL},
1007  {p_isspecial, 0, A_NEXT, TPS_Null, 0, NULL},
1008  {p_isdigit, 0, A_NEXT, TPS_InNumWord, 0, NULL},
1009  {p_iseqC, '-', A_PUSH, TPS_InHyphenWordFirst, 0, NULL},
1010  {NULL, 0, A_BINGO, TPS_Base, WORD_T, NULL}
1011 };
1012 
1013 static const TParserStateActionItem actionTPS_InUnsignedInt[] = {
1014  {p_isEOF, 0, A_BINGO, TPS_Base, UNSIGNEDINT, NULL},
1015  {p_isdigit, 0, A_NEXT, TPS_Null, 0, NULL},
1016  {p_iseqC, '.', A_PUSH, TPS_InHostFirstDomain, 0, NULL},
1017  {p_iseqC, '.', A_PUSH, TPS_InUDecimalFirst, 0, NULL},
1018  {p_iseqC, 'e', A_PUSH, TPS_InMantissaFirst, 0, NULL},
1019  {p_iseqC, 'E', A_PUSH, TPS_InMantissaFirst, 0, NULL},
1020  {p_iseqC, '-', A_PUSH, TPS_InHostFirstAN, 0, NULL},
1021  {p_iseqC, '_', A_PUSH, TPS_InHostFirstAN, 0, NULL},
1022  {p_iseqC, '@', A_PUSH, TPS_InEmail, 0, NULL},
1023  {p_isasclet, 0, A_PUSH, TPS_InHost, 0, NULL},
1024  {p_isalpha, 0, A_NEXT, TPS_InNumWord, 0, NULL},
1025  {p_isspecial, 0, A_NEXT, TPS_InNumWord, 0, NULL},
1026  {p_iseqC, '/', A_PUSH, TPS_InFileFirst, 0, NULL},
1027  {NULL, 0, A_BINGO, TPS_Base, UNSIGNEDINT, NULL}
1028 };
1029 
1030 static const TParserStateActionItem actionTPS_InSignedIntFirst[] = {
1031  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1032  {p_isdigit, 0, A_NEXT | A_CLEAR, TPS_InSignedInt, 0, NULL},
1033  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1034 };
1035 
1036 static const TParserStateActionItem actionTPS_InSignedInt[] = {
1037  {p_isEOF, 0, A_BINGO, TPS_Base, SIGNEDINT, NULL},
1038  {p_isdigit, 0, A_NEXT, TPS_Null, 0, NULL},
1039  {p_iseqC, '.', A_PUSH, TPS_InDecimalFirst, 0, NULL},
1040  {p_iseqC, 'e', A_PUSH, TPS_InMantissaFirst, 0, NULL},
1041  {p_iseqC, 'E', A_PUSH, TPS_InMantissaFirst, 0, NULL},
1042  {NULL, 0, A_BINGO, TPS_Base, SIGNEDINT, NULL}
1043 };
1044 
1045 static const TParserStateActionItem actionTPS_InSpace[] = {
1046  {p_isEOF, 0, A_BINGO, TPS_Base, SPACE, NULL},
1047  {p_iseqC, '<', A_BINGO, TPS_Base, SPACE, NULL},
1048  {p_isignore, 0, A_NEXT, TPS_Null, 0, NULL},
1049  {p_iseqC, '-', A_BINGO, TPS_Base, SPACE, NULL},
1050  {p_iseqC, '+', A_BINGO, TPS_Base, SPACE, NULL},
1051  {p_iseqC, '&', A_BINGO, TPS_Base, SPACE, NULL},
1052  {p_iseqC, '/', A_BINGO, TPS_Base, SPACE, NULL},
1053  {p_isnotalnum, 0, A_NEXT, TPS_InSpace, 0, NULL},
1054  {NULL, 0, A_BINGO, TPS_Base, SPACE, NULL}
1055 };
1056 
1057 static const TParserStateActionItem actionTPS_InUDecimalFirst[] = {
1058  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1059  {p_isdigit, 0, A_CLEAR, TPS_InUDecimal, 0, NULL},
1060  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1061 };
1062 
1063 static const TParserStateActionItem actionTPS_InUDecimal[] = {
1064  {p_isEOF, 0, A_BINGO, TPS_Base, DECIMAL_T, NULL},
1065  {p_isdigit, 0, A_NEXT, TPS_InUDecimal, 0, NULL},
1066  {p_iseqC, '.', A_PUSH, TPS_InVersionFirst, 0, NULL},
1067  {p_iseqC, 'e', A_PUSH, TPS_InMantissaFirst, 0, NULL},
1068  {p_iseqC, 'E', A_PUSH, TPS_InMantissaFirst, 0, NULL},
1069  {NULL, 0, A_BINGO, TPS_Base, DECIMAL_T, NULL}
1070 };
1071 
1072 static const TParserStateActionItem actionTPS_InDecimalFirst[] = {
1073  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1074  {p_isdigit, 0, A_CLEAR, TPS_InDecimal, 0, NULL},
1075  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1076 };
1077 
1078 static const TParserStateActionItem actionTPS_InDecimal[] = {
1079  {p_isEOF, 0, A_BINGO, TPS_Base, DECIMAL_T, NULL},
1080  {p_isdigit, 0, A_NEXT, TPS_InDecimal, 0, NULL},
1081  {p_iseqC, '.', A_PUSH, TPS_InVerVersion, 0, NULL},
1082  {p_iseqC, 'e', A_PUSH, TPS_InMantissaFirst, 0, NULL},
1083  {p_iseqC, 'E', A_PUSH, TPS_InMantissaFirst, 0, NULL},
1084  {NULL, 0, A_BINGO, TPS_Base, DECIMAL_T, NULL}
1085 };
1086 
1087 static const TParserStateActionItem actionTPS_InVerVersion[] = {
1088  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1089  {p_isdigit, 0, A_RERUN, TPS_InSVerVersion, 0, SpecialVerVersion},
1090  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1091 };
1092 
1093 static const TParserStateActionItem actionTPS_InSVerVersion[] = {
1094  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1095  {p_isdigit, 0, A_BINGO | A_CLRALL, TPS_InUnsignedInt, SPACE, NULL},
1096  {NULL, 0, A_NEXT, TPS_Null, 0, NULL}
1097 };
1098 
1099 
1100 static const TParserStateActionItem actionTPS_InVersionFirst[] = {
1101  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1102  {p_isdigit, 0, A_CLEAR, TPS_InVersion, 0, NULL},
1103  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1104 };
1105 
1106 static const TParserStateActionItem actionTPS_InVersion[] = {
1107  {p_isEOF, 0, A_BINGO, TPS_Base, VERSIONNUMBER, NULL},
1108  {p_isdigit, 0, A_NEXT, TPS_InVersion, 0, NULL},
1109  {p_iseqC, '.', A_PUSH, TPS_InVersionFirst, 0, NULL},
1110  {NULL, 0, A_BINGO, TPS_Base, VERSIONNUMBER, NULL}
1111 };
1112 
1113 static const TParserStateActionItem actionTPS_InMantissaFirst[] = {
1114  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1115  {p_isdigit, 0, A_CLEAR, TPS_InMantissa, 0, NULL},
1116  {p_iseqC, '+', A_NEXT, TPS_InMantissaSign, 0, NULL},
1117  {p_iseqC, '-', A_NEXT, TPS_InMantissaSign, 0, NULL},
1118  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1119 };
1120 
1121 static const TParserStateActionItem actionTPS_InMantissaSign[] = {
1122  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1123  {p_isdigit, 0, A_CLEAR, TPS_InMantissa, 0, NULL},
1124  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1125 };
1126 
1127 static const TParserStateActionItem actionTPS_InMantissa[] = {
1128  {p_isEOF, 0, A_BINGO, TPS_Base, SCIENTIFIC, NULL},
1129  {p_isdigit, 0, A_NEXT, TPS_InMantissa, 0, NULL},
1130  {NULL, 0, A_BINGO, TPS_Base, SCIENTIFIC, NULL}
1131 };
1132 
1133 static const TParserStateActionItem actionTPS_InXMLEntityFirst[] = {
1134  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1135  {p_iseqC, '#', A_NEXT, TPS_InXMLEntityNumFirst, 0, NULL},
1136  {p_isasclet, 0, A_NEXT, TPS_InXMLEntity, 0, NULL},
1137  {p_iseqC, ':', A_NEXT, TPS_InXMLEntity, 0, NULL},
1138  {p_iseqC, '_', A_NEXT, TPS_InXMLEntity, 0, NULL},
1139  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1140 };
1141 
1142 static const TParserStateActionItem actionTPS_InXMLEntity[] = {
1143  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1144  {p_isalnum, 0, A_NEXT, TPS_InXMLEntity, 0, NULL},
1145  {p_iseqC, ':', A_NEXT, TPS_InXMLEntity, 0, NULL},
1146  {p_iseqC, '_', A_NEXT, TPS_InXMLEntity, 0, NULL},
1147  {p_iseqC, '.', A_NEXT, TPS_InXMLEntity, 0, NULL},
1148  {p_iseqC, '-', A_NEXT, TPS_InXMLEntity, 0, NULL},
1149  {p_iseqC, ';', A_NEXT, TPS_InXMLEntityEnd, 0, NULL},
1150  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1151 };
1152 
1153 static const TParserStateActionItem actionTPS_InXMLEntityNumFirst[] = {
1154  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1155  {p_iseqC, 'x', A_NEXT, TPS_InXMLEntityHexNumFirst, 0, NULL},
1156  {p_iseqC, 'X', A_NEXT, TPS_InXMLEntityHexNumFirst, 0, NULL},
1157  {p_isdigit, 0, A_NEXT, TPS_InXMLEntityNum, 0, NULL},
1158  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1159 };
1160 
1161 static const TParserStateActionItem actionTPS_InXMLEntityHexNumFirst[] = {
1162  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1163  {p_isxdigit, 0, A_NEXT, TPS_InXMLEntityHexNum, 0, NULL},
1164  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1165 };
1166 
1167 static const TParserStateActionItem actionTPS_InXMLEntityNum[] = {
1168  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1169  {p_isdigit, 0, A_NEXT, TPS_InXMLEntityNum, 0, NULL},
1170  {p_iseqC, ';', A_NEXT, TPS_InXMLEntityEnd, 0, NULL},
1171  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1172 };
1173 
1174 static const TParserStateActionItem actionTPS_InXMLEntityHexNum[] = {
1175  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1176  {p_isxdigit, 0, A_NEXT, TPS_InXMLEntityHexNum, 0, NULL},
1177  {p_iseqC, ';', A_NEXT, TPS_InXMLEntityEnd, 0, NULL},
1178  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1179 };
1180 
1181 static const TParserStateActionItem actionTPS_InXMLEntityEnd[] = {
1182  {NULL, 0, A_BINGO | A_CLEAR, TPS_Base, XMLENTITY, NULL}
1183 };
1184 
1185 static const TParserStateActionItem actionTPS_InTagFirst[] = {
1186  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1187  {p_iseqC, '/', A_PUSH, TPS_InTagCloseFirst, 0, NULL},
1188  {p_iseqC, '!', A_PUSH, TPS_InCommentFirst, 0, NULL},
1189  {p_iseqC, '?', A_PUSH, TPS_InXMLBegin, 0, NULL},
1190  {p_isasclet, 0, A_PUSH, TPS_InTagName, 0, NULL},
1191  {p_iseqC, ':', A_PUSH, TPS_InTagName, 0, NULL},
1192  {p_iseqC, '_', A_PUSH, TPS_InTagName, 0, NULL},
1193  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1194 };
1195 
1196 static const TParserStateActionItem actionTPS_InXMLBegin[] = {
1197  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1198  /* <?xml ... */
1199  /* XXX do we wants states for the m and l ? Right now this accepts <?xZ */
1200  {p_iseqC, 'x', A_NEXT, TPS_InTag, 0, NULL},
1201  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1202 };
1203 
1204 static const TParserStateActionItem actionTPS_InTagCloseFirst[] = {
1205  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1206  {p_isasclet, 0, A_NEXT, TPS_InTagName, 0, NULL},
1207  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1208 };
1209 
1210 static const TParserStateActionItem actionTPS_InTagName[] = {
1211  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1212  /* <br/> case */
1213  {p_iseqC, '/', A_NEXT, TPS_InTagBeginEnd, 0, NULL},
1214  {p_iseqC, '>', A_NEXT, TPS_InTagEnd, 0, SpecialTags},
1215  {p_isspace, 0, A_NEXT, TPS_InTag, 0, SpecialTags},
1216  {p_isalnum, 0, A_NEXT, TPS_Null, 0, NULL},
1217  {p_iseqC, ':', A_NEXT, TPS_Null, 0, NULL},
1218  {p_iseqC, '_', A_NEXT, TPS_Null, 0, NULL},
1219  {p_iseqC, '.', A_NEXT, TPS_Null, 0, NULL},
1220  {p_iseqC, '-', A_NEXT, TPS_Null, 0, NULL},
1221  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1222 };
1223 
1224 static const TParserStateActionItem actionTPS_InTagBeginEnd[] = {
1225  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1226  {p_iseqC, '>', A_NEXT, TPS_InTagEnd, 0, NULL},
1227  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1228 };
1229 
1230 static const TParserStateActionItem actionTPS_InTag[] = {
1231  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1232  {p_iseqC, '>', A_NEXT, TPS_InTagEnd, 0, SpecialTags},
1233  {p_iseqC, '\'', A_NEXT, TPS_InTagEscapeK, 0, NULL},
1234  {p_iseqC, '"', A_NEXT, TPS_InTagEscapeKK, 0, NULL},
1235  {p_isasclet, 0, A_NEXT, TPS_Null, 0, NULL},
1236  {p_isdigit, 0, A_NEXT, TPS_Null, 0, NULL},
1237  {p_iseqC, '=', A_NEXT, TPS_Null, 0, NULL},
1238  {p_iseqC, '-', A_NEXT, TPS_Null, 0, NULL},
1239  {p_iseqC, '_', A_NEXT, TPS_Null, 0, NULL},
1240  {p_iseqC, '#', A_NEXT, TPS_Null, 0, NULL},
1241  {p_iseqC, '/', A_NEXT, TPS_Null, 0, NULL},
1242  {p_iseqC, ':', A_NEXT, TPS_Null, 0, NULL},
1243  {p_iseqC, '.', A_NEXT, TPS_Null, 0, NULL},
1244  {p_iseqC, '&', A_NEXT, TPS_Null, 0, NULL},
1245  {p_iseqC, '?', A_NEXT, TPS_Null, 0, NULL},
1246  {p_iseqC, '%', A_NEXT, TPS_Null, 0, NULL},
1247  {p_iseqC, '~', A_NEXT, TPS_Null, 0, NULL},
1248  {p_isspace, 0, A_NEXT, TPS_Null, 0, SpecialTags},
1249  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1250 };
1251 
1252 static const TParserStateActionItem actionTPS_InTagEscapeK[] = {
1253  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1254  {p_iseqC, '\\', A_PUSH, TPS_InTagBackSleshed, 0, NULL},
1255  {p_iseqC, '\'', A_NEXT, TPS_InTag, 0, NULL},
1256  {NULL, 0, A_NEXT, TPS_InTagEscapeK, 0, NULL}
1257 };
1258 
1259 static const TParserStateActionItem actionTPS_InTagEscapeKK[] = {
1260  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1261  {p_iseqC, '\\', A_PUSH, TPS_InTagBackSleshed, 0, NULL},
1262  {p_iseqC, '"', A_NEXT, TPS_InTag, 0, NULL},
1263  {NULL, 0, A_NEXT, TPS_InTagEscapeKK, 0, NULL}
1264 };
1265 
1266 static const TParserStateActionItem actionTPS_InTagBackSleshed[] = {
1267  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1268  {NULL, 0, A_MERGE, TPS_Null, 0, NULL}
1269 };
1270 
1271 static const TParserStateActionItem actionTPS_InTagEnd[] = {
1272  {NULL, 0, A_BINGO | A_CLRALL, TPS_Base, TAG_T, NULL}
1273 };
1274 
1275 static const TParserStateActionItem actionTPS_InCommentFirst[] = {
1276  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1277  {p_iseqC, '-', A_NEXT, TPS_InCommentLast, 0, NULL},
1278  /* <!DOCTYPE ...> */
1279  {p_iseqC, 'D', A_NEXT, TPS_InTag, 0, NULL},
1280  {p_iseqC, 'd', A_NEXT, TPS_InTag, 0, NULL},
1281  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1282 };
1283 
1284 static const TParserStateActionItem actionTPS_InCommentLast[] = {
1285  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1286  {p_iseqC, '-', A_NEXT, TPS_InComment, 0, NULL},
1287  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1288 };
1289 
1290 static const TParserStateActionItem actionTPS_InComment[] = {
1291  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1292  {p_iseqC, '-', A_NEXT, TPS_InCloseCommentFirst, 0, NULL},
1293  {NULL, 0, A_NEXT, TPS_Null, 0, NULL}
1294 };
1295 
1296 static const TParserStateActionItem actionTPS_InCloseCommentFirst[] = {
1297  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1298  {p_iseqC, '-', A_NEXT, TPS_InCloseCommentLast, 0, NULL},
1299  {NULL, 0, A_NEXT, TPS_InComment, 0, NULL}
1300 };
1301 
1302 static const TParserStateActionItem actionTPS_InCloseCommentLast[] = {
1303  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1304  {p_iseqC, '-', A_NEXT, TPS_Null, 0, NULL},
1305  {p_iseqC, '>', A_NEXT, TPS_InCommentEnd, 0, NULL},
1306  {NULL, 0, A_NEXT, TPS_InComment, 0, NULL}
1307 };
1308 
1309 static const TParserStateActionItem actionTPS_InCommentEnd[] = {
1310  {NULL, 0, A_BINGO | A_CLRALL, TPS_Base, TAG_T, NULL}
1311 };
1312 
1313 static const TParserStateActionItem actionTPS_InHostFirstDomain[] = {
1314  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1315  {p_isasclet, 0, A_NEXT, TPS_InHostDomainSecond, 0, NULL},
1316  {p_isdigit, 0, A_NEXT, TPS_InHost, 0, NULL},
1317  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1318 };
1319 
1320 static const TParserStateActionItem actionTPS_InHostDomainSecond[] = {
1321  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1322  {p_isasclet, 0, A_NEXT, TPS_InHostDomain, 0, NULL},
1323  {p_isdigit, 0, A_PUSH, TPS_InHost, 0, NULL},
1324  {p_iseqC, '-', A_PUSH, TPS_InHostFirstAN, 0, NULL},
1325  {p_iseqC, '_', A_PUSH, TPS_InHostFirstAN, 0, NULL},
1326  {p_iseqC, '.', A_PUSH, TPS_InHostFirstDomain, 0, NULL},
1327  {p_iseqC, '@', A_PUSH, TPS_InEmail, 0, NULL},
1328  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1329 };
1330 
1331 static const TParserStateActionItem actionTPS_InHostDomain[] = {
1332  {p_isEOF, 0, A_BINGO | A_CLRALL, TPS_Base, HOST, NULL},
1333  {p_isasclet, 0, A_NEXT, TPS_InHostDomain, 0, NULL},
1334  {p_isdigit, 0, A_PUSH, TPS_InHost, 0, NULL},
1335  {p_iseqC, ':', A_PUSH, TPS_InPortFirst, 0, NULL},
1336  {p_iseqC, '-', A_PUSH, TPS_InHostFirstAN, 0, NULL},
1337  {p_iseqC, '_', A_PUSH, TPS_InHostFirstAN, 0, NULL},
1338  {p_iseqC, '.', A_PUSH, TPS_InHostFirstDomain, 0, NULL},
1339  {p_iseqC, '@', A_PUSH, TPS_InEmail, 0, NULL},
1340  {p_isdigit, 0, A_POP, TPS_Null, 0, NULL},
1341  {p_isstophost, 0, A_BINGO | A_CLRALL, TPS_InURLPathStart, HOST, NULL},
1342  {p_iseqC, '/', A_PUSH, TPS_InFURL, 0, NULL},
1343  {NULL, 0, A_BINGO | A_CLRALL, TPS_Base, HOST, NULL}
1344 };
1345 
1346 static const TParserStateActionItem actionTPS_InPortFirst[] = {
1347  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1348  {p_isdigit, 0, A_NEXT, TPS_InPort, 0, NULL},
1349  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1350 };
1351 
1352 static const TParserStateActionItem actionTPS_InPort[] = {
1353  {p_isEOF, 0, A_BINGO | A_CLRALL, TPS_Base, HOST, NULL},
1354  {p_isdigit, 0, A_NEXT, TPS_InPort, 0, NULL},
1355  {p_isstophost, 0, A_BINGO | A_CLRALL, TPS_InURLPathStart, HOST, NULL},
1356  {p_iseqC, '/', A_PUSH, TPS_InFURL, 0, NULL},
1357  {NULL, 0, A_BINGO | A_CLRALL, TPS_Base, HOST, NULL}
1358 };
1359 
1360 static const TParserStateActionItem actionTPS_InHostFirstAN[] = {
1361  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1362  {p_isdigit, 0, A_NEXT, TPS_InHost, 0, NULL},
1363  {p_isasclet, 0, A_NEXT, TPS_InHost, 0, NULL},
1364  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1365 };
1366 
1367 static const TParserStateActionItem actionTPS_InHost[] = {
1368  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1369  {p_isdigit, 0, A_NEXT, TPS_InHost, 0, NULL},
1370  {p_isasclet, 0, A_NEXT, TPS_InHost, 0, NULL},
1371  {p_iseqC, '@', A_PUSH, TPS_InEmail, 0, NULL},
1372  {p_iseqC, '.', A_PUSH, TPS_InHostFirstDomain, 0, NULL},
1373  {p_iseqC, '-', A_PUSH, TPS_InHostFirstAN, 0, NULL},
1374  {p_iseqC, '_', A_PUSH, TPS_InHostFirstAN, 0, NULL},
1375  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1376 };
1377 
1378 static const TParserStateActionItem actionTPS_InEmail[] = {
1379  {p_isstophost, 0, A_POP, TPS_Null, 0, NULL},
1380  {p_ishost, 0, A_BINGO | A_CLRALL, TPS_Base, EMAIL, NULL},
1381  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1382 };
1383 
1384 static const TParserStateActionItem actionTPS_InFileFirst[] = {
1385  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1386  {p_isasclet, 0, A_NEXT, TPS_InFile, 0, NULL},
1387  {p_isdigit, 0, A_NEXT, TPS_InFile, 0, NULL},
1388  {p_iseqC, '.', A_NEXT, TPS_InPathFirst, 0, NULL},
1389  {p_iseqC, '_', A_NEXT, TPS_InFile, 0, NULL},
1390  {p_iseqC, '~', A_PUSH, TPS_InFileTwiddle, 0, NULL},
1391  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1392 };
1393 
1394 static const TParserStateActionItem actionTPS_InFileTwiddle[] = {
1395  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1396  {p_isasclet, 0, A_NEXT, TPS_InFile, 0, NULL},
1397  {p_isdigit, 0, A_NEXT, TPS_InFile, 0, NULL},
1398  {p_iseqC, '_', A_NEXT, TPS_InFile, 0, NULL},
1399  {p_iseqC, '/', A_NEXT, TPS_InFileFirst, 0, NULL},
1400  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1401 };
1402 
1403 static const TParserStateActionItem actionTPS_InPathFirst[] = {
1404  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1405  {p_isasclet, 0, A_NEXT, TPS_InFile, 0, NULL},
1406  {p_isdigit, 0, A_NEXT, TPS_InFile, 0, NULL},
1407  {p_iseqC, '_', A_NEXT, TPS_InFile, 0, NULL},
1408  {p_iseqC, '.', A_NEXT, TPS_InPathSecond, 0, NULL},
1409  {p_iseqC, '/', A_NEXT, TPS_InFileFirst, 0, NULL},
1410  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1411 };
1412 
1413 static const TParserStateActionItem actionTPS_InPathFirstFirst[] = {
1414  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1415  {p_iseqC, '.', A_NEXT, TPS_InPathSecond, 0, NULL},
1416  {p_iseqC, '/', A_NEXT, TPS_InFileFirst, 0, NULL},
1417  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1418 };
1419 
1420 static const TParserStateActionItem actionTPS_InPathSecond[] = {
1421  {p_isEOF, 0, A_BINGO | A_CLEAR, TPS_Base, FILEPATH, NULL},
1422  {p_iseqC, '/', A_NEXT | A_PUSH, TPS_InFileFirst, 0, NULL},
1423  {p_iseqC, '/', A_BINGO | A_CLEAR, TPS_Base, FILEPATH, NULL},
1424  {p_isspace, 0, A_BINGO | A_CLEAR, TPS_Base, FILEPATH, NULL},
1425  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1426 };
1427 
1428 static const TParserStateActionItem actionTPS_InFile[] = {
1429  {p_isEOF, 0, A_BINGO, TPS_Base, FILEPATH, NULL},
1430  {p_isasclet, 0, A_NEXT, TPS_InFile, 0, NULL},
1431  {p_isdigit, 0, A_NEXT, TPS_InFile, 0, NULL},
1432  {p_iseqC, '.', A_PUSH, TPS_InFileNext, 0, NULL},
1433  {p_iseqC, '_', A_NEXT, TPS_InFile, 0, NULL},
1434  {p_iseqC, '-', A_NEXT, TPS_InFile, 0, NULL},
1435  {p_iseqC, '/', A_PUSH, TPS_InFileFirst, 0, NULL},
1436  {NULL, 0, A_BINGO, TPS_Base, FILEPATH, NULL}
1437 };
1438 
1439 static const TParserStateActionItem actionTPS_InFileNext[] = {
1440  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1441  {p_isasclet, 0, A_CLEAR, TPS_InFile, 0, NULL},
1442  {p_isdigit, 0, A_CLEAR, TPS_InFile, 0, NULL},
1443  {p_iseqC, '_', A_CLEAR, TPS_InFile, 0, NULL},
1444  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1445 };
1446 
1447 static const TParserStateActionItem actionTPS_InURLPathFirst[] = {
1448  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1449  {p_isurlchar, 0, A_NEXT, TPS_InURLPath, 0, NULL},
1450  {NULL, 0, A_POP, TPS_Null, 0, NULL},
1451 };
1452 
1453 static const TParserStateActionItem actionTPS_InURLPathStart[] = {
1454  {NULL, 0, A_NEXT, TPS_InURLPath, 0, NULL}
1455 };
1456 
1457 static const TParserStateActionItem actionTPS_InURLPath[] = {
1458  {p_isEOF, 0, A_BINGO, TPS_Base, URLPATH, NULL},
1459  {p_isurlchar, 0, A_NEXT, TPS_InURLPath, 0, NULL},
1460  {NULL, 0, A_BINGO, TPS_Base, URLPATH, NULL}
1461 };
1462 
1463 static const TParserStateActionItem actionTPS_InFURL[] = {
1464  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1465  {p_isURLPath, 0, A_BINGO | A_CLRALL, TPS_Base, URL_T, SpecialFURL},
1466  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1467 };
1468 
1469 static const TParserStateActionItem actionTPS_InProtocolFirst[] = {
1470  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1471  {p_iseqC, '/', A_NEXT, TPS_InProtocolSecond, 0, NULL},
1472  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1473 };
1474 
1475 static const TParserStateActionItem actionTPS_InProtocolSecond[] = {
1476  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1477  {p_iseqC, '/', A_NEXT, TPS_InProtocolEnd, 0, NULL},
1478  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1479 };
1480 
1481 static const TParserStateActionItem actionTPS_InProtocolEnd[] = {
1482  {NULL, 0, A_BINGO | A_CLRALL, TPS_Base, PROTOCOL, NULL}
1483 };
1484 
1485 static const TParserStateActionItem actionTPS_InHyphenAsciiWordFirst[] = {
1486  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1487  {p_isasclet, 0, A_NEXT, TPS_InHyphenAsciiWord, 0, NULL},
1488  {p_isalpha, 0, A_NEXT, TPS_InHyphenWord, 0, NULL},
1489  {p_isdigit, 0, A_NEXT, TPS_InHyphenDigitLookahead, 0, NULL},
1490  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1491 };
1492 
1493 static const TParserStateActionItem actionTPS_InHyphenAsciiWord[] = {
1494  {p_isEOF, 0, A_BINGO | A_CLRALL, TPS_InParseHyphen, ASCIIHWORD, SpecialHyphen},
1495  {p_isasclet, 0, A_NEXT, TPS_InHyphenAsciiWord, 0, NULL},
1496  {p_isalpha, 0, A_NEXT, TPS_InHyphenWord, 0, NULL},
1497  {p_isspecial, 0, A_NEXT, TPS_InHyphenWord, 0, NULL},
1498  {p_isdigit, 0, A_NEXT, TPS_InHyphenNumWord, 0, NULL},
1499  {p_iseqC, '-', A_PUSH, TPS_InHyphenAsciiWordFirst, 0, NULL},
1500  {NULL, 0, A_BINGO | A_CLRALL, TPS_InParseHyphen, ASCIIHWORD, SpecialHyphen}
1501 };
1502 
1503 static const TParserStateActionItem actionTPS_InHyphenWordFirst[] = {
1504  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1505  {p_isalpha, 0, A_NEXT, TPS_InHyphenWord, 0, NULL},
1506  {p_isdigit, 0, A_NEXT, TPS_InHyphenDigitLookahead, 0, NULL},
1507  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1508 };
1509 
1510 static const TParserStateActionItem actionTPS_InHyphenWord[] = {
1511  {p_isEOF, 0, A_BINGO | A_CLRALL, TPS_InParseHyphen, HWORD, SpecialHyphen},
1512  {p_isalpha, 0, A_NEXT, TPS_InHyphenWord, 0, NULL},
1513  {p_isspecial, 0, A_NEXT, TPS_InHyphenWord, 0, NULL},
1514  {p_isdigit, 0, A_NEXT, TPS_InHyphenNumWord, 0, NULL},
1515  {p_iseqC, '-', A_PUSH, TPS_InHyphenWordFirst, 0, NULL},
1516  {NULL, 0, A_BINGO | A_CLRALL, TPS_InParseHyphen, HWORD, SpecialHyphen}
1517 };
1518 
1519 static const TParserStateActionItem actionTPS_InHyphenNumWordFirst[] = {
1520  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1521  {p_isalpha, 0, A_NEXT, TPS_InHyphenNumWord, 0, NULL},
1522  {p_isdigit, 0, A_NEXT, TPS_InHyphenDigitLookahead, 0, NULL},
1523  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1524 };
1525 
1526 static const TParserStateActionItem actionTPS_InHyphenNumWord[] = {
1527  {p_isEOF, 0, A_BINGO | A_CLRALL, TPS_InParseHyphen, NUMHWORD, SpecialHyphen},
1528  {p_isalnum, 0, A_NEXT, TPS_InHyphenNumWord, 0, NULL},
1529  {p_isspecial, 0, A_NEXT, TPS_InHyphenNumWord, 0, NULL},
1530  {p_iseqC, '-', A_PUSH, TPS_InHyphenNumWordFirst, 0, NULL},
1531  {NULL, 0, A_BINGO | A_CLRALL, TPS_InParseHyphen, NUMHWORD, SpecialHyphen}
1532 };
1533 
1534 static const TParserStateActionItem actionTPS_InHyphenDigitLookahead[] = {
1535  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1536  {p_isdigit, 0, A_NEXT, TPS_InHyphenDigitLookahead, 0, NULL},
1537  {p_isalpha, 0, A_NEXT, TPS_InHyphenNumWord, 0, NULL},
1538  {p_isspecial, 0, A_NEXT, TPS_InHyphenNumWord, 0, NULL},
1539  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1540 };
1541 
1542 static const TParserStateActionItem actionTPS_InParseHyphen[] = {
1543  {p_isEOF, 0, A_RERUN, TPS_Base, 0, NULL},
1544  {p_isasclet, 0, A_NEXT, TPS_InHyphenAsciiWordPart, 0, NULL},
1545  {p_isalpha, 0, A_NEXT, TPS_InHyphenWordPart, 0, NULL},
1546  {p_isdigit, 0, A_PUSH, TPS_InHyphenUnsignedInt, 0, NULL},
1547  {p_iseqC, '-', A_PUSH, TPS_InParseHyphenHyphen, 0, NULL},
1548  {NULL, 0, A_RERUN, TPS_Base, 0, NULL}
1549 };
1550 
1551 static const TParserStateActionItem actionTPS_InParseHyphenHyphen[] = {
1552  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1553  {p_isalnum, 0, A_BINGO | A_CLEAR, TPS_InParseHyphen, SPACE, NULL},
1554  {p_isspecial, 0, A_BINGO | A_CLEAR, TPS_InParseHyphen, SPACE, NULL},
1555  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1556 };
1557 
1558 static const TParserStateActionItem actionTPS_InHyphenWordPart[] = {
1559  {p_isEOF, 0, A_BINGO, TPS_Base, PARTHWORD, NULL},
1560  {p_isalpha, 0, A_NEXT, TPS_InHyphenWordPart, 0, NULL},
1561  {p_isspecial, 0, A_NEXT, TPS_InHyphenWordPart, 0, NULL},
1562  {p_isdigit, 0, A_NEXT, TPS_InHyphenNumWordPart, 0, NULL},
1563  {NULL, 0, A_BINGO, TPS_InParseHyphen, PARTHWORD, NULL}
1564 };
1565 
1566 static const TParserStateActionItem actionTPS_InHyphenAsciiWordPart[] = {
1567  {p_isEOF, 0, A_BINGO, TPS_Base, ASCIIPARTHWORD, NULL},
1568  {p_isasclet, 0, A_NEXT, TPS_InHyphenAsciiWordPart, 0, NULL},
1569  {p_isalpha, 0, A_NEXT, TPS_InHyphenWordPart, 0, NULL},
1570  {p_isspecial, 0, A_NEXT, TPS_InHyphenWordPart, 0, NULL},
1571  {p_isdigit, 0, A_NEXT, TPS_InHyphenNumWordPart, 0, NULL},
1572  {NULL, 0, A_BINGO, TPS_InParseHyphen, ASCIIPARTHWORD, NULL}
1573 };
1574 
1575 static const TParserStateActionItem actionTPS_InHyphenNumWordPart[] = {
1576  {p_isEOF, 0, A_BINGO, TPS_Base, NUMPARTHWORD, NULL},
1577  {p_isalnum, 0, A_NEXT, TPS_InHyphenNumWordPart, 0, NULL},
1578  {p_isspecial, 0, A_NEXT, TPS_InHyphenNumWordPart, 0, NULL},
1579  {NULL, 0, A_BINGO, TPS_InParseHyphen, NUMPARTHWORD, NULL}
1580 };
1581 
1582 static const TParserStateActionItem actionTPS_InHyphenUnsignedInt[] = {
1583  {p_isEOF, 0, A_POP, TPS_Null, 0, NULL},
1584  {p_isdigit, 0, A_NEXT, TPS_Null, 0, NULL},
1585  {p_isalpha, 0, A_CLEAR, TPS_InHyphenNumWordPart, 0, NULL},
1586  {p_isspecial, 0, A_CLEAR, TPS_InHyphenNumWordPart, 0, NULL},
1587  {NULL, 0, A_POP, TPS_Null, 0, NULL}
1588 };
1589 
1590 
1591 /*
1592  * main table of per-state parser actions
1593  */
1594 typedef struct
1595 {
1596  const TParserStateActionItem *action; /* the actual state info */
1597  TParserState state; /* only for Assert crosscheck */
1598 #ifdef WPARSER_TRACE
1599  const char *state_name; /* only for debug printout */
1600 #endif
1601 } TParserStateAction;
1602 
1603 #ifdef WPARSER_TRACE
1604 #define TPARSERSTATEACTION(state) \
1605  { CppConcat(action,state), state, CppAsString(state) }
1606 #else
1607 #define TPARSERSTATEACTION(state) \
1608  { CppConcat(action,state), state }
1609 #endif
1610 
1611 /*
1612  * order must be the same as in typedef enum {} TParserState!!
1613  */
1614 
1615 static const TParserStateAction Actions[] = {
1616  TPARSERSTATEACTION(TPS_Base),
1617  TPARSERSTATEACTION(TPS_InNumWord),
1618  TPARSERSTATEACTION(TPS_InAsciiWord),
1619  TPARSERSTATEACTION(TPS_InWord),
1620  TPARSERSTATEACTION(TPS_InUnsignedInt),
1621  TPARSERSTATEACTION(TPS_InSignedIntFirst),
1622  TPARSERSTATEACTION(TPS_InSignedInt),
1623  TPARSERSTATEACTION(TPS_InSpace),
1624  TPARSERSTATEACTION(TPS_InUDecimalFirst),
1625  TPARSERSTATEACTION(TPS_InUDecimal),
1626  TPARSERSTATEACTION(TPS_InDecimalFirst),
1627  TPARSERSTATEACTION(TPS_InDecimal),
1628  TPARSERSTATEACTION(TPS_InVerVersion),
1629  TPARSERSTATEACTION(TPS_InSVerVersion),
1630  TPARSERSTATEACTION(TPS_InVersionFirst),
1631  TPARSERSTATEACTION(TPS_InVersion),
1632  TPARSERSTATEACTION(TPS_InMantissaFirst),
1633  TPARSERSTATEACTION(TPS_InMantissaSign),
1634  TPARSERSTATEACTION(TPS_InMantissa),
1635  TPARSERSTATEACTION(TPS_InXMLEntityFirst),
1636  TPARSERSTATEACTION(TPS_InXMLEntity),
1637  TPARSERSTATEACTION(TPS_InXMLEntityNumFirst),
1638  TPARSERSTATEACTION(TPS_InXMLEntityNum),
1639  TPARSERSTATEACTION(TPS_InXMLEntityHexNumFirst),
1640  TPARSERSTATEACTION(TPS_InXMLEntityHexNum),
1641  TPARSERSTATEACTION(TPS_InXMLEntityEnd),
1642  TPARSERSTATEACTION(TPS_InTagFirst),
1643  TPARSERSTATEACTION(TPS_InXMLBegin),
1644  TPARSERSTATEACTION(TPS_InTagCloseFirst),
1645  TPARSERSTATEACTION(TPS_InTagName),
1646  TPARSERSTATEACTION(TPS_InTagBeginEnd),
1647  TPARSERSTATEACTION(TPS_InTag),
1648  TPARSERSTATEACTION(TPS_InTagEscapeK),
1649  TPARSERSTATEACTION(TPS_InTagEscapeKK),
1650  TPARSERSTATEACTION(TPS_InTagBackSleshed),
1651  TPARSERSTATEACTION(TPS_InTagEnd),
1652  TPARSERSTATEACTION(TPS_InCommentFirst),
1653  TPARSERSTATEACTION(TPS_InCommentLast),
1654  TPARSERSTATEACTION(TPS_InComment),
1655  TPARSERSTATEACTION(TPS_InCloseCommentFirst),
1656  TPARSERSTATEACTION(TPS_InCloseCommentLast),
1657  TPARSERSTATEACTION(TPS_InCommentEnd),
1658  TPARSERSTATEACTION(TPS_InHostFirstDomain),
1659  TPARSERSTATEACTION(TPS_InHostDomainSecond),
1660  TPARSERSTATEACTION(TPS_InHostDomain),
1661  TPARSERSTATEACTION(TPS_InPortFirst),
1662  TPARSERSTATEACTION(TPS_InPort),
1663  TPARSERSTATEACTION(TPS_InHostFirstAN),
1664  TPARSERSTATEACTION(TPS_InHost),
1665  TPARSERSTATEACTION(TPS_InEmail),
1666  TPARSERSTATEACTION(TPS_InFileFirst),
1667  TPARSERSTATEACTION(TPS_InFileTwiddle),
1668  TPARSERSTATEACTION(TPS_InPathFirst),
1669  TPARSERSTATEACTION(TPS_InPathFirstFirst),
1670  TPARSERSTATEACTION(TPS_InPathSecond),
1671  TPARSERSTATEACTION(TPS_InFile),
1672  TPARSERSTATEACTION(TPS_InFileNext),
1673  TPARSERSTATEACTION(TPS_InURLPathFirst),
1674  TPARSERSTATEACTION(TPS_InURLPathStart),
1675  TPARSERSTATEACTION(TPS_InURLPath),
1676  TPARSERSTATEACTION(TPS_InFURL),
1677  TPARSERSTATEACTION(TPS_InProtocolFirst),
1678  TPARSERSTATEACTION(TPS_InProtocolSecond),
1679  TPARSERSTATEACTION(TPS_InProtocolEnd),
1680  TPARSERSTATEACTION(TPS_InHyphenAsciiWordFirst),
1681  TPARSERSTATEACTION(TPS_InHyphenAsciiWord),
1682  TPARSERSTATEACTION(TPS_InHyphenWordFirst),
1683  TPARSERSTATEACTION(TPS_InHyphenWord),
1684  TPARSERSTATEACTION(TPS_InHyphenNumWordFirst),
1685  TPARSERSTATEACTION(TPS_InHyphenNumWord),
1686  TPARSERSTATEACTION(TPS_InHyphenDigitLookahead),
1687  TPARSERSTATEACTION(TPS_InParseHyphen),
1688  TPARSERSTATEACTION(TPS_InParseHyphenHyphen),
1689  TPARSERSTATEACTION(TPS_InHyphenWordPart),
1690  TPARSERSTATEACTION(TPS_InHyphenAsciiWordPart),
1691  TPARSERSTATEACTION(TPS_InHyphenNumWordPart),
1692  TPARSERSTATEACTION(TPS_InHyphenUnsignedInt)
1693 };
1694 
1695 
1696 static bool
1697 TParserGet(TParser *prs)
1698 {
1699  const TParserStateActionItem *item = NULL;
1700 
1701  Assert(prs->state);
1702 
1703  if (prs->state->posbyte >= prs->lenstr)
1704  return false;
1705 
1706  prs->token = prs->str + prs->state->posbyte;
1707  prs->state->pushedAtAction = NULL;
1708 
1709  /* look at string */
1710  while (prs->state->posbyte <= prs->lenstr)
1711  {
1712  if (prs->state->posbyte == prs->lenstr)
1713  prs->state->charlen = 0;
1714  else
1715  prs->state->charlen = (prs->charmaxlen == 1) ? prs->charmaxlen :
1716  pg_mblen(prs->str + prs->state->posbyte);
1717 
1718  Assert(prs->state->posbyte + prs->state->charlen <= prs->lenstr);
1719  Assert(prs->state->state >= TPS_Base && prs->state->state < TPS_Null);
1720  Assert(Actions[prs->state->state].state == prs->state->state);
1721 
1722  if (prs->state->pushedAtAction)
1723  {
1724  /* After a POP, pick up at the next test */
1725  item = prs->state->pushedAtAction + 1;
1726  prs->state->pushedAtAction = NULL;
1727  }
1728  else
1729  {
1730  item = Actions[prs->state->state].action;
1731  Assert(item != NULL);
1732  }
1733 
1734  /* find action by character class */
1735  while (item->isclass)
1736  {
1737  prs->c = item->c;
1738  if (item->isclass(prs) != 0)
1739  break;
1740  item++;
1741  }
1742 
1743 #ifdef WPARSER_TRACE
1744  {
1745  TParserPosition *ptr;
1746 
1747  fprintf(stderr, "state ");
1748  /* indent according to stack depth */
1749  for (ptr = prs->state->prev; ptr; ptr = ptr->prev)
1750  fprintf(stderr, " ");
1751  fprintf(stderr, "%s ", Actions[prs->state->state].state_name);
1752  if (prs->state->posbyte < prs->lenstr)
1753  fprintf(stderr, "at %c", *(prs->str + prs->state->posbyte));
1754  else
1755  fprintf(stderr, "at EOF");
1756  fprintf(stderr, " matched rule %d flags%s%s%s%s%s%s%s%s%s%s%s\n",
1757  (int) (item - Actions[prs->state->state].action),
1758  (item->flags & A_BINGO) ? " BINGO" : "",
1759  (item->flags & A_POP) ? " POP" : "",
1760  (item->flags & A_PUSH) ? " PUSH" : "",
1761  (item->flags & A_RERUN) ? " RERUN" : "",
1762  (item->flags & A_CLEAR) ? " CLEAR" : "",
1763  (item->flags & A_MERGE) ? " MERGE" : "",
1764  (item->flags & A_CLRALL) ? " CLRALL" : "",
1765  (item->tostate != TPS_Null) ? " tostate " : "",
1766  (item->tostate != TPS_Null) ? Actions[item->tostate].state_name : "",
1767  (item->type > 0) ? " type " : "",
1768  tok_alias[item->type]);
1769  }
1770 #endif
1771 
1772  /* call special handler if exists */
1773  if (item->special)
1774  item->special(prs);
1775 
1776  /* BINGO, token is found */
1777  if (item->flags & A_BINGO)
1778  {
1779  Assert(item->type > 0);
1780  prs->lenbytetoken = prs->state->lenbytetoken;
1781  prs->lenchartoken = prs->state->lenchartoken;
1782  prs->state->lenbytetoken = prs->state->lenchartoken = 0;
1783  prs->type = item->type;
1784  }
1785 
1786  /* do various actions by flags */
1787  if (item->flags & A_POP)
1788  { /* pop stored state in stack */
1789  TParserPosition *ptr = prs->state->prev;
1790 
1791  pfree(prs->state);
1792  prs->state = ptr;
1793  Assert(prs->state);
1794  }
1795  else if (item->flags & A_PUSH)
1796  { /* push (store) state in stack */
1797  prs->state->pushedAtAction = item; /* remember where we push */
1798  prs->state = newTParserPosition(prs->state);
1799  }
1800  else if (item->flags & A_CLEAR)
1801  { /* clear previous pushed state */
1802  TParserPosition *ptr;
1803 
1804  Assert(prs->state->prev);
1805  ptr = prs->state->prev->prev;
1806  pfree(prs->state->prev);
1807  prs->state->prev = ptr;
1808  }
1809  else if (item->flags & A_CLRALL)
1810  { /* clear all previous pushed state */
1811  TParserPosition *ptr;
1812 
1813  while (prs->state->prev)
1814  {
1815  ptr = prs->state->prev->prev;
1816  pfree(prs->state->prev);
1817  prs->state->prev = ptr;
1818  }
1819  }
1820  else if (item->flags & A_MERGE)
1821  { /* merge posinfo with current and pushed state */
1822  TParserPosition *ptr = prs->state;
1823 
1824  Assert(prs->state->prev);
1825  prs->state = prs->state->prev;
1826 
1827  prs->state->posbyte = ptr->posbyte;
1828  prs->state->poschar = ptr->poschar;
1829  prs->state->charlen = ptr->charlen;
1830  prs->state->lenbytetoken = ptr->lenbytetoken;
1831  prs->state->lenchartoken = ptr->lenchartoken;
1832  pfree(ptr);
1833  }
1834 
1835  /* set new state if pointed */
1836  if (item->tostate != TPS_Null)
1837  prs->state->state = item->tostate;
1838 
1839  /* check for go away */
1840  if ((item->flags & A_BINGO) ||
1841  (prs->state->posbyte >= prs->lenstr &&
1842  (item->flags & A_RERUN) == 0))
1843  break;
1844 
1845  /* go to beginning of loop if we should rerun or we just restore state */
1846  if (item->flags & (A_RERUN | A_POP))
1847  continue;
1848 
1849  /* move forward */
1850  if (prs->state->charlen)
1851  {
1852  prs->state->posbyte += prs->state->charlen;
1853  prs->state->lenbytetoken += prs->state->charlen;
1854  prs->state->poschar++;
1855  prs->state->lenchartoken++;
1856  }
1857  }
1858 
1859  return (item && (item->flags & A_BINGO));
1860 }
1861 
1862 Datum
1863 prsd_lextype(PG_FUNCTION_ARGS)
1864 {
1865  LexDescr *descr = (LexDescr *) palloc(sizeof(LexDescr) * (LASTNUM + 1));
1866  int i;
1867 
1868  for (i = 1; i <= LASTNUM; i++)
1869  {
1870  descr[i - 1].lexid = i;
1871  descr[i - 1].alias = pstrdup(tok_alias[i]);
1872  descr[i - 1].descr = pstrdup(lex_descr[i]);
1873  }
1874 
1875  descr[LASTNUM].lexid = 0;
1876 
1877  PG_RETURN_POINTER(descr);
1878 }
1879 
1880 Datum
1881 prsd_start(PG_FUNCTION_ARGS)
1882 {
1883  PG_RETURN_POINTER(TParserInit((char *) PG_GETARG_POINTER(0), PG_GETARG_INT32(1)));
1884 }
1885 
1886 Datum
1887 prsd_nexttoken(PG_FUNCTION_ARGS)
1888 {
1889  TParser *p = (TParser *) PG_GETARG_POINTER(0);
1890  char **t = (char **) PG_GETARG_POINTER(1);
1891  int *tlen = (int *) PG_GETARG_POINTER(2);
1892 
1893  if (!TParserGet(p))
1894  PG_RETURN_INT32(0);
1895 
1896  *t = p->token;
1897  *tlen = p->lenbytetoken;
1898 
1899  PG_RETURN_INT32(p->type);
1900 }
1901 
1902 Datum
1903 prsd_end(PG_FUNCTION_ARGS)
1904 {
1905  TParser *p = (TParser *) PG_GETARG_POINTER(0);
1906 
1907  TParserClose(p);
1908  PG_RETURN_VOID();
1909 }
1910 
1911 
1912 /*
1913  * ts_headline support begins here
1914  */
1915 
1916 /* token type classification macros */
1917 #define TS_IDIGNORE(x) ( (x)==TAG_T || (x)==PROTOCOL || (x)==SPACE || (x)==XMLENTITY )
1918 #define HLIDREPLACE(x) ( (x)==TAG_T )
1919 #define HLIDSKIP(x) ( (x)==URL_T || (x)==NUMHWORD || (x)==ASCIIHWORD || (x)==HWORD )
1920 #define XMLHLIDSKIP(x) ( (x)==URL_T || (x)==NUMHWORD || (x)==ASCIIHWORD || (x)==HWORD )
1921 #define NONWORDTOKEN(x) ( (x)==SPACE || HLIDREPLACE(x) || HLIDSKIP(x) )
1922 #define NOENDTOKEN(x) ( NONWORDTOKEN(x) || (x)==SCIENTIFIC || (x)==VERSIONNUMBER || (x)==DECIMAL_T || (x)==SIGNEDINT || (x)==UNSIGNEDINT || TS_IDIGNORE(x) )
1923 
1924 /*
1925  * Macros useful in headline selection. These rely on availability of
1926  * "HeadlineParsedText *prs" describing some text, and "int shortword"
1927  * describing the "short word" length parameter.
1928  */
1929 
1930 /* Interesting words are non-repeated search terms */
1931 #define INTERESTINGWORD(j) \
1932  (prs->words[j].item && !prs->words[j].repeated)
1933 
1934 /* Don't want to end at a non-word or a short word, unless interesting */
1935 #define BADENDPOINT(j) \
1936  ((NOENDTOKEN(prs->words[j].type) || prs->words[j].len <= shortword) && \
1937  !INTERESTINGWORD(j))
1938 
1939 typedef struct
1940 {
1941  /* one cover (well, really one fragment) for mark_hl_fragments */
1942  int32 startpos; /* fragment's starting word index */
1943  int32 endpos; /* ending word index (inclusive) */
1944  int32 poslen; /* number of interesting words */
1945  int32 curlen; /* total number of words */
1946  bool chosen; /* chosen? */
1947  bool excluded; /* excluded? */
1948 } CoverPos;
1949 
1950 typedef struct
1951 {
1952  /* callback data for checkcondition_HL */
1953  HeadlineWordEntry *words;
1954  int len;
1955 } hlCheck;
1956 
1957 
1958 /*
1959  * TS_execute callback for matching a tsquery operand to headline words
1960  *
1961  * Note: it's tempting to report words[] indexes as pos values to save
1962  * searching in hlCover; but that would screw up phrase matching, which
1963  * expects to measure distances in lexemes not tokens.
1964  */
1965 static TSTernaryValue
1966 checkcondition_HL(void *opaque, QueryOperand *val, ExecPhraseData *data)
1967 {
1968  hlCheck *checkval = (hlCheck *) opaque;
1969  int i;
1970 
1971  /* scan words array for matching items */
1972  for (i = 0; i < checkval->len; i++)
1973  {
1974  if (checkval->words[i].item == val)
1975  {
1976  /* if data == NULL, don't need to report positions */
1977  if (!data)
1978  return TS_YES;
1979 
1980  if (!data->pos)
1981  {
1982  data->pos = palloc(sizeof(WordEntryPos) * checkval->len);
1983  data->allocated = true;
1984  data->npos = 1;
1985  data->pos[0] = checkval->words[i].pos;
1986  }
1987  else if (data->pos[data->npos - 1] < checkval->words[i].pos)
1988  {
1989  data->pos[data->npos++] = checkval->words[i].pos;
1990  }
1991  }
1992  }
1993 
1994  if (data && data->npos > 0)
1995  return TS_YES;
1996 
1997  return TS_NO;
1998 }
1999 
2000 /*
2001  * hlCover: try to find a substring of prs' word list that satisfies query
2002  *
2003  * locations is the result of TS_execute_locations() for the query.
2004  * We use this to identify plausible subranges of the query.
2005  *
2006  * *nextpos is the lexeme position (NOT word index) to start the search
2007  * at. Caller should initialize this to zero. If successful, we'll
2008  * advance it to the next place to search at.
2009  *
2010  * On success, sets *p to first word index and *q to last word index of the
2011  * cover substring, and returns true.
2012  *
2013  * The result is a minimal cover, in the sense that both *p and *q will be
2014  * words used in the query.
2015  */
2016 static bool
2017 hlCover(HeadlineParsedText *prs, TSQuery query, List *locations,
2018  int *nextpos, int *p, int *q)
2019 {
2020  int pos = *nextpos;
2021 
2022  /* This loop repeats when our selected word-range fails the query */
2023  for (;;)
2024  {
2025  int posb,
2026  pose;
2027  ListCell *lc;
2028 
2029  /*
2030  * For each AND'ed query term or phrase, find its first occurrence at
2031  * or after pos; set pose to the maximum of those positions.
2032  *
2033  * We need not consider ORs or NOTs here; see the comments for
2034  * TS_execute_locations(). Rechecking the match with TS_execute(),
2035  * below, will deal with any ensuing imprecision.
2036  */
2037  pose = -1;
2038  foreach(lc, locations)
2039  {
2040  ExecPhraseData *pdata = (ExecPhraseData *) lfirst(lc);
2041  int first = -1;
2042 
2043  for (int i = 0; i < pdata->npos; i++)
2044  {
2045  /* For phrase matches, use the ending lexeme */
2046  int endp = pdata->pos[i];
2047 
2048  if (endp >= pos)
2049  {
2050  first = endp;
2051  break;
2052  }
2053  }
2054  if (first < 0)
2055  return false; /* no more matches for this term */
2056  if (first > pose)
2057  pose = first;
2058  }
2059 
2060  if (pose < 0)
2061  return false; /* we only get here if empty list */
2062 
2063  /*
2064  * Now, for each AND'ed query term or phrase, find its last occurrence
2065  * at or before pose; set posb to the minimum of those positions.
2066  *
2067  * We start posb at INT_MAX - 1 to guarantee no overflow if we compute
2068  * posb + 1 below.
2069  */
2070  posb = INT_MAX - 1;
2071  foreach(lc, locations)
2072  {
2073  ExecPhraseData *pdata = (ExecPhraseData *) lfirst(lc);
2074  int last = -1;
2075 
2076  for (int i = pdata->npos - 1; i >= 0; i--)
2077  {
2078  /* For phrase matches, use the starting lexeme */
2079  int startp = pdata->pos[i] - pdata->width;
2080 
2081  if (startp <= pose)
2082  {
2083  last = startp;
2084  break;
2085  }
2086  }
2087  if (last < posb)
2088  posb = last;
2089  }
2090 
2091  /*
2092  * We could end up with posb to the left of pos, in case some phrase
2093  * match crosses pos. Try the match starting at pos anyway, since the
2094  * result of TS_execute_locations is imprecise for phrase matches OR'd
2095  * with plain matches; that is, if the query is "(A <-> B) | C" then C
2096  * could match at pos even though the phrase match would have to
2097  * extend to the left of pos.
2098  */
2099  posb = Max(posb, pos);
2100 
2101  /* This test probably always succeeds, but be paranoid */
2102  if (posb <= pose)
2103  {
2104  /*
2105  * posb .. pose is now the shortest, earliest-after-pos range of
2106  * lexeme positions containing all the query terms. It will
2107  * contain all phrase matches, too, except in the corner case
2108  * described just above.
2109  *
2110  * Now convert these lexeme positions to indexes in prs->words[].
2111  */
2112  int idxb = -1;
2113  int idxe = -1;
2114 
2115  for (int i = 0; i < prs->curwords; i++)
2116  {
2117  if (prs->words[i].item == NULL)
2118  continue;
2119  if (idxb < 0 && prs->words[i].pos >= posb)
2120  idxb = i;
2121  if (prs->words[i].pos <= pose)
2122  idxe = i;
2123  else
2124  break;
2125  }
2126 
2127  /* This test probably always succeeds, but be paranoid */
2128  if (idxb >= 0 && idxe >= idxb)
2129  {
2130  /*
2131  * Finally, check that the selected range satisfies the query.
2132  * This should succeed in all simple cases; but odd cases
2133  * involving non-top-level NOT conditions or phrase matches
2134  * OR'd with other things could fail, since the result of
2135  * TS_execute_locations doesn't fully represent such things.
2136  */
2137  hlCheck ch;
2138 
2139  ch.words = &(prs->words[idxb]);
2140  ch.len = idxe - idxb + 1;
2141  if (TS_execute(GETQUERY(query), &ch,
2142  TS_EXEC_EMPTY, checkcondition_HL))
2143  {
2144  /* Match! Advance *nextpos and return the word range. */
2145  *nextpos = posb + 1;
2146  *p = idxb;
2147  *q = idxe;
2148  return true;
2149  }
2150  }
2151  }
2152 
2153  /*
2154  * Advance pos and try again. Any later workable match must start
2155  * beyond posb.
2156  */
2157  pos = posb + 1;
2158  }
2159  /* Can't get here, but stupider compilers complain if we leave it off */
2160  return false;
2161 }
2162 
2163 /*
2164  * Apply suitable highlight marking to words selected by headline selector
2165  *
2166  * The words from startpos to endpos inclusive are marked per highlightall
2167  */
2168 static void
2169 mark_fragment(HeadlineParsedText *prs, bool highlightall,
2170  int startpos, int endpos)
2171 {
2172  int i;
2173 
2174  for (i = startpos; i <= endpos; i++)
2175  {
2176  if (prs->words[i].item)
2177  prs->words[i].selected = 1;
2178  if (!highlightall)
2179  {
2180  if (HLIDREPLACE(prs->words[i].type))
2181  prs->words[i].replace = 1;
2182  else if (HLIDSKIP(prs->words[i].type))
2183  prs->words[i].skip = 1;
2184  }
2185  else
2186  {
2187  if (XMLHLIDSKIP(prs->words[i].type))
2188  prs->words[i].skip = 1;
2189  }
2190 
2191  prs->words[i].in = (prs->words[i].repeated) ? 0 : 1;
2192  }
2193 }
2194 
2195 /*
2196  * split a cover substring into fragments not longer than max_words
2197  *
2198  * At entry, *startpos and *endpos are the (remaining) bounds of the cover
2199  * substring. They are updated to hold the bounds of the next fragment.
2200  *
2201  * *curlen and *poslen are set to the fragment's length, in words and
2202  * interesting words respectively.
2203  */
2204 static void
2205 get_next_fragment(HeadlineParsedText *prs, int *startpos, int *endpos,
2206  int *curlen, int *poslen, int max_words)
2207 {
2208  int i;
2209 
2210  /*
2211  * Objective: select a fragment of words between startpos and endpos such
2212  * that it has at most max_words and both ends have query words. If the
2213  * startpos and endpos are the endpoints of the cover and the cover has
2214  * fewer words than max_words, then this function should just return the
2215  * cover
2216  */
2217  /* first move startpos to an item */
2218  for (i = *startpos; i <= *endpos; i++)
2219  {
2220  *startpos = i;
2221  if (INTERESTINGWORD(i))
2222  break;
2223  }
2224  /* cut endpos to have only max_words */
2225  *curlen = 0;
2226  *poslen = 0;
2227  for (i = *startpos; i <= *endpos && *curlen < max_words; i++)
2228  {
2229  if (!NONWORDTOKEN(prs->words[i].type))
2230  *curlen += 1;
2231  if (INTERESTINGWORD(i))
2232  *poslen += 1;
2233  }
2234  /* if the cover was cut then move back endpos to a query item */
2235  if (*endpos > i)
2236  {
2237  *endpos = i;
2238  for (i = *endpos; i >= *startpos; i--)
2239  {
2240  *endpos = i;
2241  if (INTERESTINGWORD(i))
2242  break;
2243  if (!NONWORDTOKEN(prs->words[i].type))
2244  *curlen -= 1;
2245  }
2246  }
2247 }
2248 
2249 /*
2250  * Headline selector used when MaxFragments > 0
2251  *
2252  * Note: in this mode, highlightall is disregarded for phrase selection;
2253  * it only controls presentation details.
2254  */
2255 static void
2256 mark_hl_fragments(HeadlineParsedText *prs, TSQuery query, List *locations,
2257  bool highlightall,
2258  int shortword, int min_words,
2259  int max_words, int max_fragments)
2260 {
2261  int32 poslen,
2262  curlen,
2263  i,
2264  f,
2265  num_f = 0;
2266  int32 stretch,
2267  maxstretch,
2268  posmarker;
2269 
2270  int32 startpos = 0,
2271  endpos = 0,
2272  nextpos = 0,
2273  p = 0,
2274  q = 0;
2275 
2276  int32 numcovers = 0,
2277  maxcovers = 32;
2278 
2279  int32 minI,
2280  minwords,
2281  maxitems;
2282  CoverPos *covers;
2283 
2284  covers = palloc(maxcovers * sizeof(CoverPos));
2285 
2286  /* get all covers */
2287  while (hlCover(prs, query, locations, &nextpos, &p, &q))
2288  {
2289  startpos = p;
2290  endpos = q;
2291 
2292  /*
2293  * Break the cover into smaller fragments such that each fragment has
2294  * at most max_words. Also ensure that each end of each fragment is a
2295  * query word. This will allow us to stretch the fragment in either
2296  * direction
2297  */
2298 
2299  while (startpos <= endpos)
2300  {
2301  get_next_fragment(prs, &startpos, &endpos, &curlen, &poslen, max_words);
2302  if (numcovers >= maxcovers)
2303  {
2304  maxcovers *= 2;
2305  covers = repalloc(covers, sizeof(CoverPos) * maxcovers);
2306  }
2307  covers[numcovers].startpos = startpos;
2308  covers[numcovers].endpos = endpos;
2309  covers[numcovers].curlen = curlen;
2310  covers[numcovers].poslen = poslen;
2311  covers[numcovers].chosen = false;
2312  covers[numcovers].excluded = false;
2313  numcovers++;
2314  startpos = endpos + 1;
2315  endpos = q;
2316  }
2317  }
2318 
2319  /* choose best covers */
2320  for (f = 0; f < max_fragments; f++)
2321  {
2322  maxitems = 0;
2323  minwords = PG_INT32_MAX;
2324  minI = -1;
2325 
2326  /*
2327  * Choose the cover that contains max items. In case of tie choose the
2328  * one with smaller number of words.
2329  */
2330  for (i = 0; i < numcovers; i++)
2331  {
2332  if (!covers[i].chosen && !covers[i].excluded &&
2333  (maxitems < covers[i].poslen ||
2334  (maxitems == covers[i].poslen &&
2335  minwords > covers[i].curlen)))
2336  {
2337  maxitems = covers[i].poslen;
2338  minwords = covers[i].curlen;
2339  minI = i;
2340  }
2341  }
2342  /* if a cover was found mark it */
2343  if (minI >= 0)
2344  {
2345  covers[minI].chosen = true;
2346  /* adjust the size of cover */
2347  startpos = covers[minI].startpos;
2348  endpos = covers[minI].endpos;
2349  curlen = covers[minI].curlen;
2350  /* stretch the cover if cover size is lower than max_words */
2351  if (curlen < max_words)
2352  {
2353  /* divide the stretch on both sides of cover */
2354  maxstretch = (max_words - curlen) / 2;
2355 
2356  /*
2357  * first stretch the startpos stop stretching if 1. we hit the
2358  * beginning of document 2. exceed maxstretch 3. we hit an
2359  * already marked fragment
2360  */
2361  stretch = 0;
2362  posmarker = startpos;
2363  for (i = startpos - 1; i >= 0 && stretch < maxstretch && !prs->words[i].in; i--)
2364  {
2365  if (!NONWORDTOKEN(prs->words[i].type))
2366  {
2367  curlen++;
2368  stretch++;
2369  }
2370  posmarker = i;
2371  }
2372  /* cut back startpos till we find a good endpoint */
2373  for (i = posmarker; i < startpos && BADENDPOINT(i); i++)
2374  {
2375  if (!NONWORDTOKEN(prs->words[i].type))
2376  curlen--;
2377  }
2378  startpos = i;
2379  /* now stretch the endpos as much as possible */
2380  posmarker = endpos;
2381  for (i = endpos + 1; i < prs->curwords && curlen < max_words && !prs->words[i].in; i++)
2382  {
2383  if (!NONWORDTOKEN(prs->words[i].type))
2384  curlen++;
2385  posmarker = i;
2386  }
2387  /* cut back endpos till we find a good endpoint */
2388  for (i = posmarker; i > endpos && BADENDPOINT(i); i--)
2389  {
2390  if (!NONWORDTOKEN(prs->words[i].type))
2391  curlen--;
2392  }
2393  endpos = i;
2394  }
2395  covers[minI].startpos = startpos;
2396  covers[minI].endpos = endpos;
2397  covers[minI].curlen = curlen;
2398  /* Mark the chosen fragments (covers) */
2399  mark_fragment(prs, highlightall, startpos, endpos);
2400  num_f++;
2401  /* Exclude covers overlapping this one from future consideration */
2402  for (i = 0; i < numcovers; i++)
2403  {
2404  if (i != minI &&
2405  ((covers[i].startpos >= startpos &&
2406  covers[i].startpos <= endpos) ||
2407  (covers[i].endpos >= startpos &&
2408  covers[i].endpos <= endpos) ||
2409  (covers[i].startpos < startpos &&
2410  covers[i].endpos > endpos)))
2411  covers[i].excluded = true;
2412  }
2413  }
2414  else
2415  break; /* no selectable covers remain */
2416  }
2417 
2418  /* show the first min_words words if we have not marked anything */
2419  if (num_f <= 0)
2420  {
2421  startpos = endpos = curlen = 0;
2422  for (i = 0; i < prs->curwords && curlen < min_words; i++)
2423  {
2424  if (!NONWORDTOKEN(prs->words[i].type))
2425  curlen++;
2426  endpos = i;
2427  }
2428  mark_fragment(prs, highlightall, startpos, endpos);
2429  }
2430 
2431  pfree(covers);
2432 }
2433 
2434 /*
2435  * Headline selector used when MaxFragments == 0
2436  */
2437 static void
2438 mark_hl_words(HeadlineParsedText *prs, TSQuery query, List *locations,
2439  bool highlightall,
2440  int shortword, int min_words, int max_words)
2441 {
2442  int nextpos = 0,
2443  p = 0,
2444  q = 0;
2445  int bestb = -1,
2446  beste = -1;
2447  int bestlen = -1;
2448  bool bestcover = false;
2449  int pose,
2450  posb,
2451  poslen,
2452  curlen;
2453  bool poscover;
2454  int i;
2455 
2456  if (!highlightall)
2457  {
2458  /* examine all covers, select a headline using the best one */
2459  while (hlCover(prs, query, locations, &nextpos, &p, &q))
2460  {
2461  /*
2462  * Count words (curlen) and interesting words (poslen) within
2463  * cover, but stop once we reach max_words. This step doesn't
2464  * consider whether that's a good stopping point. posb and pose
2465  * are set to the start and end indexes of the possible headline.
2466  */
2467  curlen = 0;
2468  poslen = 0;
2469  posb = pose = p;
2470  for (i = p; i <= q && curlen < max_words; i++)
2471  {
2472  if (!NONWORDTOKEN(prs->words[i].type))
2473  curlen++;
2474  if (INTERESTINGWORD(i))
2475  poslen++;
2476  pose = i;
2477  }
2478 
2479  if (curlen < max_words)
2480  {
2481  /*
2482  * We have room to lengthen the headline, so search forward
2483  * until it's full or we find a good stopping point. We'll
2484  * reconsider the word at "q", then move forward.
2485  */
2486  for (i = i - 1; i < prs->curwords && curlen < max_words; i++)
2487  {
2488  if (i > q)
2489  {
2490  if (!NONWORDTOKEN(prs->words[i].type))
2491  curlen++;
2492  if (INTERESTINGWORD(i))
2493  poslen++;
2494  }
2495  pose = i;
2496  if (BADENDPOINT(i))
2497  continue;
2498  if (curlen >= min_words)
2499  break;
2500  }
2501  if (curlen < min_words)
2502  {
2503  /*
2504  * Reached end of text and our headline is still shorter
2505  * than min_words, so try to extend it to the left.
2506  */
2507  for (i = p - 1; i >= 0; i--)
2508  {
2509  if (!NONWORDTOKEN(prs->words[i].type))
2510  curlen++;
2511  if (INTERESTINGWORD(i))
2512  poslen++;
2513  if (curlen >= max_words)
2514  break;
2515  if (BADENDPOINT(i))
2516  continue;
2517  if (curlen >= min_words)
2518  break;
2519  }
2520  posb = (i >= 0) ? i : 0;
2521  }
2522  }
2523  else
2524  {
2525  /*
2526  * Can't make headline longer, so consider making it shorter
2527  * if needed to avoid a bad endpoint.
2528  */
2529  if (i > q)
2530  i = q;
2531  for (; curlen > min_words; i--)
2532  {
2533  if (!BADENDPOINT(i))
2534  break;
2535  if (!NONWORDTOKEN(prs->words[i].type))
2536  curlen--;
2537  if (INTERESTINGWORD(i))
2538  poslen--;
2539  pose = i - 1;
2540  }
2541  }
2542 
2543  /*
2544  * Check whether the proposed headline includes the original
2545  * cover; it might not if we trimmed it due to max_words.
2546  */
2547  poscover = (posb <= p && pose >= q);
2548 
2549  /*
2550  * Adopt this headline if it's better than the last one, giving
2551  * highest priority to headlines including the cover, then to
2552  * headlines with more interesting words, then to headlines with
2553  * good stopping points. (Since bestlen is initially -1, we will
2554  * certainly adopt the first headline.)
2555  */
2556  if (poscover > bestcover ||
2557  (poscover == bestcover && poslen > bestlen) ||
2558  (poscover == bestcover && poslen == bestlen &&
2559  !BADENDPOINT(pose) && BADENDPOINT(beste)))
2560  {
2561  bestb = posb;
2562  beste = pose;
2563  bestlen = poslen;
2564  bestcover = poscover;
2565  }
2566  }
2567 
2568  /*
2569  * If we found nothing acceptable, select min_words words starting at
2570  * the beginning.
2571  */
2572  if (bestlen < 0)
2573  {
2574  curlen = 0;
2575  pose = 0;
2576  for (i = 0; i < prs->curwords && curlen < min_words; i++)
2577  {
2578  if (!NONWORDTOKEN(prs->words[i].type))
2579  curlen++;
2580  pose = i;
2581  }
2582  bestb = 0;
2583  beste = pose;
2584  }
2585  }
2586  else
2587  {
2588  /* highlightall mode: headline is whole document */
2589  bestb = 0;
2590  beste = prs->curwords - 1;
2591  }
2592 
2593  mark_fragment(prs, highlightall, bestb, beste);
2594 }
2595 
2596 /*
2597  * Default parser's prsheadline function
2598  */
2599 Datum
2600 prsd_headline(PG_FUNCTION_ARGS)
2601 {
2602  HeadlineParsedText *prs = (HeadlineParsedText *) PG_GETARG_POINTER(0);
2603  List *prsoptions = (List *) PG_GETARG_POINTER(1);
2604  TSQuery query = PG_GETARG_TSQUERY(2);
2605  hlCheck ch;
2606  List *locations;
2607 
2608  /* default option values: */
2609  int min_words = 15;
2610  int max_words = 35;
2611  int shortword = 3;
2612  int max_fragments = 0;
2613  bool highlightall = false;
2614  ListCell *l;
2615 
2616  /* Extract configuration option values */
2617  prs->startsel = NULL;
2618  prs->stopsel = NULL;
2619  prs->fragdelim = NULL;
2620  foreach(l, prsoptions)
2621  {
2622  DefElem *defel = (DefElem *) lfirst(l);
2623  char *val = defGetString(defel);
2624 
2625  if (pg_strcasecmp(defel->defname, "MaxWords") == 0)
2626  max_words = pg_strtoint32(val);
2627  else if (pg_strcasecmp(defel->defname, "MinWords") == 0)
2628  min_words = pg_strtoint32(val);
2629  else if (pg_strcasecmp(defel->defname, "ShortWord") == 0)
2630  shortword = pg_strtoint32(val);
2631  else if (pg_strcasecmp(defel->defname, "MaxFragments") == 0)
2632  max_fragments = pg_strtoint32(val);
2633  else if (pg_strcasecmp(defel->defname, "StartSel") == 0)
2634  prs->startsel = pstrdup(val);
2635  else if (pg_strcasecmp(defel->defname, "StopSel") == 0)
2636  prs->stopsel = pstrdup(val);
2637  else if (pg_strcasecmp(defel->defname, "FragmentDelimiter") == 0)
2638  prs->fragdelim = pstrdup(val);
2639  else if (pg_strcasecmp(defel->defname, "HighlightAll") == 0)
2640  highlightall = (pg_strcasecmp(val, "1") == 0 ||
2641  pg_strcasecmp(val, "on") == 0 ||
2642  pg_strcasecmp(val, "true") == 0 ||
2643  pg_strcasecmp(val, "t") == 0 ||
2644  pg_strcasecmp(val, "y") == 0 ||
2645  pg_strcasecmp(val, "yes") == 0);
2646  else
2647  ereport(ERROR,
2648  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
2649  errmsg("unrecognized headline parameter: \"%s\"",
2650  defel->defname)));
2651  }
2652 
2653  /* in HighlightAll mode these parameters are ignored */
2654  if (!highlightall)
2655  {
2656  if (min_words >= max_words)
2657  ereport(ERROR,
2658  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
2659  errmsg("MinWords should be less than MaxWords")));
2660  if (min_words <= 0)
2661  ereport(ERROR,
2662  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
2663  errmsg("MinWords should be positive")));
2664  if (shortword < 0)
2665  ereport(ERROR,
2666  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
2667  errmsg("ShortWord should be >= 0")));
2668  if (max_fragments < 0)
2669  ereport(ERROR,
2670  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
2671  errmsg("MaxFragments should be >= 0")));
2672  }
2673 
2674  /* Locate words and phrases matching the query */
2675  ch.words = prs->words;
2676  ch.len = prs->curwords;
2677  locations = TS_execute_locations(GETQUERY(query), &ch, TS_EXEC_EMPTY,
2678  checkcondition_HL);
2679 
2680  /* Apply appropriate headline selector */
2681  if (max_fragments == 0)
2682  mark_hl_words(prs, query, locations, highlightall, shortword,
2683  min_words, max_words);
2684  else
2685  mark_hl_fragments(prs, query, locations, highlightall, shortword,
2686  min_words, max_words, max_fragments);
2687 
2688  /* Fill in default values for string options */
2689  if (!prs->startsel)
2690  prs->startsel = pstrdup("<b>");
2691  if (!prs->stopsel)
2692  prs->stopsel = pstrdup("</b>");
2693  if (!prs->fragdelim)
2694  prs->fragdelim = pstrdup(" ... ");
2695 
2696  /* Caller will need these lengths, too */
2697  prs->startsellen = strlen(prs->startsel);
2698  prs->stopsellen = strlen(prs->stopsel);
2699  prs->fragdelimlen = strlen(prs->fragdelim);
2700 
2701  PG_RETURN_POINTER(prs);
2702 }
GETQUERY
#define GETQUERY(x)
Definition: _int.h:157
print
void print(const void *obj)
Definition: print.c:36
uint16
unsigned short uint16
Definition: c.h:489
PG_INT32_MAX
#define PG_INT32_MAX
Definition: c.h:573
int32
signed int int32
Definition: c.h:478
Max
#define Max(x, y)
Definition: c.h:982
lengthof
#define lengthof(array)
Definition: c.h:772
defGetString
char * defGetString(DefElem *def)
Definition: define.c:49
errcode
int errcode(int sqlerrcode)
Definition: elog.c:858
errmsg
int errmsg(const char *fmt,...)
Definition: elog.c:1069
ERROR
#define ERROR
Definition: elog.h:39
ereport
#define ereport(elevel,...)
Definition: elog.h:149
PG_RETURN_VOID
#define PG_RETURN_VOID()
Definition: fmgr.h:349
PG_GETARG_POINTER
#define PG_GETARG_POINTER(n)
Definition: fmgr.h:276
PG_RETURN_INT32
#define PG_RETURN_INT32(x)
Definition: fmgr.h:354
PG_GETARG_INT32
#define PG_GETARG_INT32(n)
Definition: fmgr.h:269
PG_RETURN_POINTER
#define PG_RETURN_POINTER(x)
Definition: fmgr.h:361
PG_FUNCTION_ARGS
#define PG_FUNCTION_ARGS
Definition: fmgr.h:193
val
long val
Definition: informix.c:664
i
int i
Definition: isn.c:73
Assert
Assert(fmt[strlen(fmt) - 1] !='\n')
pg_wchar
unsigned int pg_wchar
Definition: mbprint.c:31
GetDatabaseEncoding
int GetDatabaseEncoding(void)
Definition: mbutils.c:1268
pg_dsplen
int pg_dsplen(const char *mbstr)
Definition: mbutils.c:1031
pg_database_encoding_max_length
int pg_database_encoding_max_length(void)
Definition: mbutils.c:1553
pg_mb2wchar_with_len
int pg_mb2wchar_with_len(const char *from, pg_wchar *to, int len)
Definition: mbutils.c:987
pg_mblen
int pg_mblen(const char *mbstr)
Definition: mbutils.c:1024
pstrdup
char * pstrdup(const char *in)
Definition: mcxt.c:1624
pfree
void pfree(void *pointer)
Definition: mcxt.c:1436
palloc0
void * palloc0(Size size)
Definition: mcxt.c:1241
repalloc
void * repalloc(void *pointer, Size size)
Definition: mcxt.c:1456
palloc
void * palloc(Size size)
Definition: mcxt.c:1210
generate_unaccent_rules.str
str
Definition: generate_unaccent_rules.py:276
pg_strtoint32
int32 pg_strtoint32(const char *s)
Definition: numutils.c:240
lower
Datum lower(PG_FUNCTION_ARGS)
Definition: oracle_compat.c:49
upper
Datum upper(PG_FUNCTION_ARGS)
Definition: oracle_compat.c:80
pg_collation.h
len
const void size_t len
Definition: pg_crc32c_sse42.c:24
data
const void * data
Definition: pg_crc32c_sse42.c:23
lfirst
#define lfirst(lc)
Definition: pg_list.h:172
lc_ctype_is_c
bool lc_ctype_is_c(Oid collation)
Definition: pg_locale.c:1352
char2wchar
size_t char2wchar(wchar_t *to, size_t tolen, const char *from, size_t fromlen, pg_locale_t locale)
Definition: pg_locale.c:2061
endpos
static XLogRecPtr endpos
Definition: pg_receivewal.c:56
startpos
static XLogRecPtr startpos
Definition: pg_recvlogical.c:42
PG_UTF8
@ PG_UTF8
Definition: pg_wchar.h:232
pg_strcasecmp
int pg_strcasecmp(const char *s1, const char *s2)
Definition: pgstrcasecmp.c:36
fprintf
#define fprintf
Definition: port.h:242
pg_strncasecmp
int pg_strncasecmp(const char *s1, const char *s2, size_t n)
Definition: pgstrcasecmp.c:69
Datum
uintptr_t Datum
Definition: postgres.h:64
Oid
unsigned int Oid
Definition: postgres_ext.h:31
c
char * c
Definition: preproc-cursor.c:31
CoverPos::chosen
bool chosen
Definition: wparser_def.c:1946
CoverPos::endpos
int32 endpos
Definition: wparser_def.c:1943
CoverPos::curlen
int32 curlen
Definition: wparser_def.c:1945
CoverPos::startpos
int32 startpos
Definition: wparser_def.c:1942
CoverPos::excluded
bool excluded
Definition: wparser_def.c:1947
CoverPos::poslen
int32 poslen
Definition: wparser_def.c:1944
DefElem::defname
char * defname
Definition: parsenodes.h:810
ExecPhraseData::pos
WordEntryPos * pos
Definition: ts_utils.h:166
HeadlineParsedText::words
HeadlineWordEntry * words
Definition: ts_public.h:76
HeadlineWordEntry::pos
WordEntryPos pos
Definition: ts_public.h:68
HeadlineWordEntry::item
QueryOperand * item
Definition: ts_public.h:70
LexDescr::alias
char * alias
Definition: ts_public.h:28
LexDescr::lexid
int lexid
Definition: ts_public.h:27
LexDescr::descr
char * descr
Definition: ts_public.h:29
List
Definition: pg_list.h:54
TParserPosition::pushedAtAction
const TParserStateActionItem * pushedAtAction
Definition: wparser_def.c:236
TParserPosition::prev
struct TParserPosition * prev
Definition: wparser_def.c:235
TParserPosition::state
TParserState state
Definition: wparser_def.c:234
TParserStateActionItem::isclass
TParserCharTest isclass
Definition: wparser_def.c:209
TParserStateActionItem::tostate
TParserState tostate
Definition: wparser_def.c:212
TParserStateActionItem::special
TParserSpecial special
Definition: wparser_def.c:214
TParserStateAction::action
const TParserStateActionItem * action
Definition: wparser_def.c:1596
TParserStateAction::state
TParserState state
Definition: wparser_def.c:1597
TParser::str
char * str
Definition: wparser_def.c:242
TParser::pgwstr
pg_wchar * pgwstr
Definition: wparser_def.c:245
TParser::wstr
wchar_t * wstr
Definition: wparser_def.c:244
TParser::lenstr
int lenstr
Definition: wparser_def.c:243
TParser::token
char * token
Definition: wparser_def.c:258
TParser::type
int type
Definition: wparser_def.c:261
TParser::charmaxlen
int charmaxlen
Definition: wparser_def.c:249
TParser::wanthost
bool wanthost
Definition: wparser_def.c:252
TParser::lenbytetoken
int lenbytetoken
Definition: wparser_def.c:259
TParser::ignore
bool ignore
Definition: wparser_def.c:251
TParser::state
TParserPosition * state
Definition: wparser_def.c:250
TParser::lenchartoken
int lenchartoken
Definition: wparser_def.c:260
TParser::c
char c
Definition: wparser_def.c:255
TParser::usewide
bool usewide
Definition: wparser_def.c:246
hlCheck::words
HeadlineWordEntry * words
Definition: wparser_def.c:1953
pg_locale_struct
Definition: pg_locale.h:74
ts_locale.h
ts_public.h
ts_type.h
PG_GETARG_TSQUERY
#define PG_GETARG_TSQUERY(n)
Definition: ts_type.h:266
WordEntryPos
uint16 WordEntryPos
Definition: ts_type.h:63
ts_utils.h
TSTernaryValue
TSTernaryValue
Definition: ts_utils.h:133
TS_NO
@ TS_NO
Definition: ts_utils.h:134
TS_YES
@ TS_YES
Definition: ts_utils.h:135
TS_EXEC_EMPTY
#define TS_EXEC_EMPTY
Definition: ts_utils.h:188
TS_execute
bool TS_execute(QueryItem *curitem, void *arg, uint32 flags, TSExecuteCallback chkcond)
Definition: tsvector_op.c:1856
TS_execute_locations
List * TS_execute_locations(QueryItem *curitem, void *arg, uint32 flags, TSExecuteCallback chkcond)
Definition: tsvector_op.c:2009
actionTPS_InParseHyphen
static const TParserStateActionItem actionTPS_InParseHyphen[]
Definition: wparser_def.c:1542
actionTPS_InXMLEntityNumFirst
static const TParserStateActionItem actionTPS_InXMLEntityNumFirst[]
Definition: wparser_def.c:1153
actionTPS_InHyphenWordFirst
static const TParserStateActionItem actionTPS_InHyphenWordFirst[]
Definition: wparser_def.c:1503
NONWORDTOKEN
#define NONWORDTOKEN(x)
Definition: wparser_def.c:1921
actionTPS_InXMLEntityFirst
static const TParserStateActionItem actionTPS_InXMLEntityFirst[]
Definition: wparser_def.c:1133
actionTPS_InHostFirstAN
static const TParserStateActionItem actionTPS_InHostFirstAN[]
Definition: wparser_def.c:1360
VERSIONNUMBER
#define VERSIONNUMBER
Definition: wparser_def.c:41
actionTPS_InHyphenNumWordPart
static const TParserStateActionItem actionTPS_InHyphenNumWordPart[]
Definition: wparser_def.c:1575
BADENDPOINT
#define BADENDPOINT(j)
Definition: wparser_def.c:1935
ASCIIWORD
#define ASCIIWORD
Definition: wparser_def.c:34
PROTOCOL
#define PROTOCOL
Definition: wparser_def.c:47
actionTPS_InPathSecond
static const TParserStateActionItem actionTPS_InPathSecond[]
Definition: wparser_def.c:1420
actionTPS_InPathFirst
static const TParserStateActionItem actionTPS_InPathFirst[]
Definition: wparser_def.c:1403
actionTPS_InHostDomainSecond
static const TParserStateActionItem actionTPS_InHostDomainSecond[]
Definition: wparser_def.c:1320
actionTPS_InCloseCommentFirst
static const TParserStateActionItem actionTPS_InCloseCommentFirst[]
Definition: wparser_def.c:1296
SpecialFURL
static void SpecialFURL(TParser *prs)
Definition: wparser_def.c:587
actionTPS_InCommentEnd
static const TParserStateActionItem actionTPS_InCommentEnd[]
Definition: wparser_def.c:1309
TParser
struct TParser TParser
checkcondition_HL
static TSTernaryValue checkcondition_HL(void *opaque, QueryOperand *val, ExecPhraseData *data)
Definition: wparser_def.c:1966
_make_compiler_happy
void _make_compiler_happy(void)
Definition: wparser_def.c:536
actionTPS_InURLPathStart
static const TParserStateActionItem actionTPS_InURLPathStart[]
Definition: wparser_def.c:1453
actionTPS_InHostFirstDomain
static const TParserStateActionItem actionTPS_InHostFirstDomain[]
Definition: wparser_def.c:1313
actionTPS_InHyphenDigitLookahead
static const TParserStateActionItem actionTPS_InHyphenDigitLookahead[]
Definition: wparser_def.c:1534
actionTPS_InHostDomain
static const TParserStateActionItem actionTPS_InHostDomain[]
Definition: wparser_def.c:1331
actionTPS_InVersion
static const TParserStateActionItem actionTPS_InVersion[]
Definition: wparser_def.c:1106
XMLHLIDSKIP
#define XMLHLIDSKIP(x)
Definition: wparser_def.c:1920
actionTPS_InHyphenAsciiWordFirst
static const TParserStateActionItem actionTPS_InHyphenAsciiWordFirst[]
Definition: wparser_def.c:1485
prsd_nexttoken
Datum prsd_nexttoken(PG_FUNCTION_ARGS)
Definition: wparser_def.c:1887
actionTPS_InTagName
static const TParserStateActionItem actionTPS_InTagName[]
Definition: wparser_def.c:1210
DECIMAL_T
#define DECIMAL_T
Definition: wparser_def.c:53
actionTPS_InFileNext
static const TParserStateActionItem actionTPS_InFileNext[]
Definition: wparser_def.c:1439
actionTPS_InXMLEntity
static const TParserStateActionItem actionTPS_InXMLEntity[]
Definition: wparser_def.c:1142
ASCIIPARTHWORD
#define ASCIIPARTHWORD
Definition: wparser_def.c:44
actionTPS_InFURL
static const TParserStateActionItem actionTPS_InFURL[]
Definition: wparser_def.c:1463
p_iswhat
#define p_iswhat(type, nonascii)
Definition: wparser_def.c:423
actionTPS_InMantissaSign
static const TParserStateActionItem actionTPS_InMantissaSign[]
Definition: wparser_def.c:1121
mark_hl_fragments
static void mark_hl_fragments(HeadlineParsedText *prs, TSQuery query, List *locations, bool highlightall, int shortword, int min_words, int max_words, int max_fragments)
Definition: wparser_def.c:2256
WORD_T
#define WORD_T
Definition: wparser_def.c:35
TParserState
TParserState
Definition: wparser_def.c:118
TPS_InXMLEntityHexNumFirst
@ TPS_InXMLEntityHexNumFirst
Definition: wparser_def.c:142
TPS_InPort
@ TPS_InPort
Definition: wparser_def.c:165
TPS_InXMLEntityHexNum
@ TPS_InXMLEntityHexNum
Definition: wparser_def.c:143
TPS_InHostDomainSecond
@ TPS_InHostDomainSecond
Definition: wparser_def.c:162
TPS_InMantissaFirst
@ TPS_InMantissaFirst
Definition: wparser_def.c:135
TPS_InTagName
@ TPS_InTagName
Definition: wparser_def.c:148
TPS_InHyphenAsciiWordFirst
@ TPS_InHyphenAsciiWordFirst
Definition: wparser_def.c:183
TPS_Null
@ TPS_Null
Definition: wparser_def.c:196
TPS_InPathFirstFirst
@ TPS_InPathFirstFirst
Definition: wparser_def.c:172
TPS_InSignedIntFirst
@ TPS_InSignedIntFirst
Definition: wparser_def.c:124
TPS_InSignedInt
@ TPS_InSignedInt
Definition: wparser_def.c:125
TPS_InUnsignedInt
@ TPS_InUnsignedInt
Definition: wparser_def.c:123
TPS_InMantissa
@ TPS_InMantissa
Definition: wparser_def.c:137
TPS_InProtocolFirst
@ TPS_InProtocolFirst
Definition: wparser_def.c:180
TPS_InFURL
@ TPS_InFURL
Definition: wparser_def.c:179
TPS_InMantissaSign
@ TPS_InMantissaSign
Definition: wparser_def.c:136
TPS_InXMLBegin
@ TPS_InXMLBegin
Definition: wparser_def.c:146
TPS_InCommentEnd
@ TPS_InCommentEnd
Definition: wparser_def.c:160
TPS_InHyphenWordFirst
@ TPS_InHyphenWordFirst
Definition: wparser_def.c:185
TPS_InHyphenNumWordPart
@ TPS_InHyphenNumWordPart
Definition: wparser_def.c:194
TPS_InPortFirst
@ TPS_InPortFirst
Definition: wparser_def.c:164
TPS_InProtocolEnd
@ TPS_InProtocolEnd
Definition: wparser_def.c:182
TPS_InXMLEntityFirst
@ TPS_InXMLEntityFirst
Definition: wparser_def.c:138
TPS_InHyphenNumWordFirst
@ TPS_InHyphenNumWordFirst
Definition: wparser_def.c:187
TPS_InCommentLast
@ TPS_InCommentLast
Definition: wparser_def.c:156
TPS_InFileTwiddle
@ TPS_InFileTwiddle
Definition: wparser_def.c:170
TPS_InURLPathStart
@ TPS_InURLPathStart
Definition: wparser_def.c:177
TPS_InURLPathFirst
@ TPS_InURLPathFirst
Definition: wparser_def.c:176
TPS_InPathFirst
@ TPS_InPathFirst
Definition: wparser_def.c:171
TPS_InPathSecond
@ TPS_InPathSecond
Definition: wparser_def.c:173
TPS_InHyphenUnsignedInt
@ TPS_InHyphenUnsignedInt
Definition: wparser_def.c:195
TPS_InFileFirst
@ TPS_InFileFirst
Definition: wparser_def.c:169
TPS_InXMLEntityNumFirst
@ TPS_InXMLEntityNumFirst
Definition: wparser_def.c:140
TPS_InHyphenWordPart
@ TPS_InHyphenWordPart
Definition: wparser_def.c:192
TPS_InNumWord
@ TPS_InNumWord
Definition: wparser_def.c:120
TPS_InAsciiWord
@ TPS_InAsciiWord
Definition: wparser_def.c:121
TPS_InVersion
@ TPS_InVersion
Definition: wparser_def.c:134
TPS_InHost
@ TPS_InHost
Definition: wparser_def.c:167
TPS_InFile
@ TPS_InFile
Definition: wparser_def.c:174
TPS_InProtocolSecond
@ TPS_InProtocolSecond
Definition: wparser_def.c:181
TPS_InCloseCommentFirst
@ TPS_InCloseCommentFirst
Definition: wparser_def.c:158
TPS_InTagEscapeK
@ TPS_InTagEscapeK
Definition: wparser_def.c:151
TPS_InParseHyphenHyphen
@ TPS_InParseHyphenHyphen
Definition: wparser_def.c:191
TPS_InTagBackSleshed
@ TPS_InTagBackSleshed
Definition: wparser_def.c:153
TPS_InTagFirst
@ TPS_InTagFirst
Definition: wparser_def.c:145
TPS_InTagEnd
@ TPS_InTagEnd
Definition: wparser_def.c:154
TPS_InComment
@ TPS_InComment
Definition: wparser_def.c:157
TPS_InHyphenWord
@ TPS_InHyphenWord
Definition: wparser_def.c:186
TPS_InHyphenAsciiWord
@ TPS_InHyphenAsciiWord
Definition: wparser_def.c:184
TPS_InWord
@ TPS_InWord
Definition: wparser_def.c:122
TPS_InXMLEntityEnd
@ TPS_InXMLEntityEnd
Definition: wparser_def.c:144
TPS_InTagEscapeKK
@ TPS_InTagEscapeKK
Definition: wparser_def.c:152
TPS_InSpace
@ TPS_InSpace
Definition: wparser_def.c:126
TPS_InFileNext
@ TPS_InFileNext
Definition: wparser_def.c:175
TPS_InURLPath
@ TPS_InURLPath
Definition: wparser_def.c:178
TPS_Base
@ TPS_Base
Definition: wparser_def.c:119
TPS_InUDecimal
@ TPS_InUDecimal
Definition: wparser_def.c:128
TPS_InParseHyphen
@ TPS_InParseHyphen
Definition: wparser_def.c:190
TPS_InHostFirstAN
@ TPS_InHostFirstAN
Definition: wparser_def.c:166
TPS_InEmail
@ TPS_InEmail
Definition: wparser_def.c:168
TPS_InDecimalFirst
@ TPS_InDecimalFirst
Definition: wparser_def.c:129
TPS_InVersionFirst
@ TPS_InVersionFirst
Definition: wparser_def.c:133
TPS_InCloseCommentLast
@ TPS_InCloseCommentLast
Definition: wparser_def.c:159
TPS_InSVerVersion
@ TPS_InSVerVersion
Definition: wparser_def.c:132
TPS_InHyphenAsciiWordPart
@ TPS_InHyphenAsciiWordPart
Definition: wparser_def.c:193
TPS_InCommentFirst
@ TPS_InCommentFirst
Definition: wparser_def.c:155
TPS_InUDecimalFirst
@ TPS_InUDecimalFirst
Definition: wparser_def.c:127
TPS_InHostFirstDomain
@ TPS_InHostFirstDomain
Definition: wparser_def.c:161
TPS_InHostDomain
@ TPS_InHostDomain
Definition: wparser_def.c:163
TPS_InHyphenDigitLookahead
@ TPS_InHyphenDigitLookahead
Definition: wparser_def.c:189
TPS_InVerVersion
@ TPS_InVerVersion
Definition: wparser_def.c:131
TPS_InXMLEntityNum
@ TPS_InXMLEntityNum
Definition: wparser_def.c:141
TPS_InTag
@ TPS_InTag
Definition: wparser_def.c:150
TPS_InDecimal
@ TPS_InDecimal
Definition: wparser_def.c:130
TPS_InTagCloseFirst
@ TPS_InTagCloseFirst
Definition: wparser_def.c:147
TPS_InXMLEntity
@ TPS_InXMLEntity
Definition: wparser_def.c:139
TPS_InHyphenNumWord
@ TPS_InHyphenNumWord
Definition: wparser_def.c:188
TPS_InTagBeginEnd
@ TPS_InTagBeginEnd
Definition: wparser_def.c:149
mark_fragment
static void mark_fragment(HeadlineParsedText *prs, bool highlightall, int startpos, int endpos)
Definition: wparser_def.c:2169
actionTPS_InXMLEntityEnd
static const TParserStateActionItem actionTPS_InXMLEntityEnd[]
Definition: wparser_def.c:1181
actionTPS_InHyphenNumWord
static const TParserStateActionItem actionTPS_InHyphenNumWord[]
Definition: wparser_def.c:1526
actionTPS_InDecimal
static const TParserStateActionItem actionTPS_InDecimal[]
Definition: wparser_def.c:1078
A_POP
#define A_POP
Definition: wparser_def.c:220
actionTPS_InSignedIntFirst
static const TParserStateActionItem actionTPS_InSignedIntFirst[]
Definition: wparser_def.c:1030
actionTPS_InTagEscapeK
static const TParserStateActionItem actionTPS_InTagEscapeK[]
Definition: wparser_def.c:1252
actionTPS_InSpace
static const TParserStateActionItem actionTPS_InSpace[]
Definition: wparser_def.c:1045
actionTPS_InFile
static const TParserStateActionItem actionTPS_InFile[]
Definition: wparser_def.c:1428
TParserCopyInit
static TParser * TParserCopyInit(const TParser *orig)
Definition: wparser_def.c:345
actionTPS_InHyphenAsciiWordPart
static const TParserStateActionItem actionTPS_InHyphenAsciiWordPart[]
Definition: wparser_def.c:1566
LASTNUM
#define LASTNUM
Definition: wparser_def.c:58
p_iseqC
static int p_iseqC(TParser *prs)
Definition: wparser_def.c:480
prsd_headline
Datum prsd_headline(PG_FUNCTION_ARGS)
Definition: wparser_def.c:2600
NUMHWORD
#define NUMHWORD
Definition: wparser_def.c:48
hlCover
static bool hlCover(HeadlineParsedText *prs, TSQuery query, List *locations, int *nextpos, int *p, int *q)
Definition: wparser_def.c:2017
SPACE
#define SPACE
Definition: wparser_def.c:45
actionTPS_InUDecimal
static const TParserStateActionItem actionTPS_InUDecimal[]
Definition: wparser_def.c:1063
TParserCharTest
int(* TParserCharTest)(struct TParser *)
Definition: wparser_def.c:202
actionTPS_InSignedInt
static const TParserStateActionItem actionTPS_InSignedInt[]
Definition: wparser_def.c:1036
p_isurlchar
static int p_isurlchar(TParser *prs)
Definition: wparser_def.c:504
actionTPS_InTagBeginEnd
static const TParserStateActionItem actionTPS_InTagBeginEnd[]
Definition: wparser_def.c:1224
actionTPS_InTagFirst
static const TParserStateActionItem actionTPS_InTagFirst[]
Definition: wparser_def.c:1185
TParserPosition
struct TParserPosition TParserPosition
NUMWORD
#define NUMWORD
Definition: wparser_def.c:36
FILEPATH
#define FILEPATH
Definition: wparser_def.c:52
actionTPS_InTagEscapeKK
static const TParserStateActionItem actionTPS_InTagEscapeKK[]
Definition: wparser_def.c:1259
p_isneC
static int p_isneC(TParser *prs)
Definition: wparser_def.c:486
EMAIL
#define EMAIL
Definition: wparser_def.c:37
actionTPS_InCommentLast
static const TParserStateActionItem actionTPS_InCommentLast[]
Definition: wparser_def.c:1284
actionTPS_InHyphenWordPart
static const TParserStateActionItem actionTPS_InHyphenWordPart[]
Definition: wparser_def.c:1558
actionTPS_InMantissaFirst
static const TParserStateActionItem actionTPS_InMantissaFirst[]
Definition: wparser_def.c:1113
actionTPS_Base
static const TParserStateActionItem actionTPS_Base[]
Definition: wparser_def.c:958
SpecialHyphen
static void SpecialHyphen(TParser *prs)
Definition: wparser_def.c:595
mark_hl_words
static void mark_hl_words(HeadlineParsedText *prs, TSQuery query, List *locations, bool highlightall, int shortword, int min_words, int max_words)
Definition: wparser_def.c:2438
actionTPS_InHyphenNumWordFirst
static const TParserStateActionItem actionTPS_InHyphenNumWordFirst[]
Definition: wparser_def.c:1519
UNSIGNEDINT
#define UNSIGNEDINT
Definition: wparser_def.c:55
TParserSpecial
void(* TParserSpecial)(struct TParser *)
Definition: wparser_def.c:204
actionTPS_InEmail
static const TParserStateActionItem actionTPS_InEmail[]
Definition: wparser_def.c:1378
actionTPS_InXMLEntityHexNumFirst
static const TParserStateActionItem actionTPS_InXMLEntityHexNumFirst[]
Definition: wparser_def.c:1161
actionTPS_InURLPath
static const TParserStateActionItem actionTPS_InURLPath[]
Definition: wparser_def.c:1457
A_RERUN
#define A_RERUN
Definition: wparser_def.c:222
actionTPS_InSVerVersion
static const TParserStateActionItem actionTPS_InSVerVersion[]
Definition: wparser_def.c:1093
actionTPS_InAsciiWord
static const TParserStateActionItem actionTPS_InAsciiWord[]
Definition: wparser_def.c:986
tok_alias
static const char *const tok_alias[]
Definition: wparser_def.c:60
p_isstophost
static int p_isstophost(TParser *prs)
Definition: wparser_def.c:611
HLIDSKIP
#define HLIDSKIP(x)
Definition: wparser_def.c:1919
get_next_fragment
static void get_next_fragment(HeadlineParsedText *prs, int *startpos, int *endpos, int *curlen, int *poslen, int max_words)
Definition: wparser_def.c:2205
actionTPS_InHyphenUnsignedInt
static const TParserStateActionItem actionTPS_InHyphenUnsignedInt[]
Definition: wparser_def.c:1582
SIGNEDINT
#define SIGNEDINT
Definition: wparser_def.c:54
p_isasclet
static int p_isasclet(TParser *prs)
Definition: wparser_def.c:498
Actions
static const TParserStateAction Actions[]
Definition: wparser_def.c:1615
actionTPS_InXMLBegin
static const TParserStateActionItem actionTPS_InXMLBegin[]
Definition: wparser_def.c:1196
PARTHWORD
#define PARTHWORD
Definition: wparser_def.c:43
HLIDREPLACE
#define HLIDREPLACE(x)
Definition: wparser_def.c:1918
A_MERGE
#define A_MERGE
Definition: wparser_def.c:224
actionTPS_InMantissa
static const TParserStateActionItem actionTPS_InMantissa[]
Definition: wparser_def.c:1127
actionTPS_InVersionFirst
static const TParserStateActionItem actionTPS_InVersionFirst[]
Definition: wparser_def.c:1100
p_isascii
static int p_isascii(TParser *prs)
Definition: wparser_def.c:492
actionTPS_InCommentFirst
static const TParserStateActionItem actionTPS_InCommentFirst[]
Definition: wparser_def.c:1275
actionTPS_InHyphenWord
static const TParserStateActionItem actionTPS_InHyphenWord[]
Definition: wparser_def.c:1510
p_isignore
static int p_isignore(TParser *prs)
Definition: wparser_def.c:622
actionTPS_InParseHyphenHyphen
static const TParserStateActionItem actionTPS_InParseHyphenHyphen[]
Definition: wparser_def.c:1551
actionTPS_InPort
static const TParserStateActionItem actionTPS_InPort[]
Definition: wparser_def.c:1352
TAG_T
#define TAG_T
Definition: wparser_def.c:46
actionTPS_InDecimalFirst
static const TParserStateActionItem actionTPS_InDecimalFirst[]
Definition: wparser_def.c:1072
newTParserPosition
static TParserPosition * newTParserPosition(TParserPosition *prev)
Definition: wparser_def.c:270
URLPATH
#define URLPATH
Definition: wparser_def.c:51
prsd_lextype
Datum prsd_lextype(PG_FUNCTION_ARGS)
Definition: wparser_def.c:1863
ASCIIHWORD
#define ASCIIHWORD
Definition: wparser_def.c:49
HOST
#define HOST
Definition: wparser_def.c:39
actionTPS_InTag
static const TParserStateActionItem actionTPS_InTag[]
Definition: wparser_def.c:1230
prsd_start
Datum prsd_start(PG_FUNCTION_ARGS)
Definition: wparser_def.c:1881
TParserInit
static TParser * TParserInit(char *str, int len)
Definition: wparser_def.c:287
A_BINGO
#define A_BINGO
Definition: wparser_def.c:219
TPARSERSTATEACTION
#define TPARSERSTATEACTION(state)
Definition: wparser_def.c:1607
TParserGet
static bool TParserGet(TParser *prs)
Definition: wparser_def.c:1697
XMLENTITY
#define XMLENTITY
Definition: wparser_def.c:56
p_ishost
static int p_ishost(TParser *prs)
Definition: wparser_def.c:628
prsd_end
Datum prsd_end(PG_FUNCTION_ARGS)
Definition: wparser_def.c:1903
A_CLRALL
#define A_CLRALL
Definition: wparser_def.c:225
p_isURLPath
static int p_isURLPath(TParser *prs)
Definition: wparser_def.c:650
SpecialVerVersion
static void SpecialVerVersion(TParser *prs)
Definition: wparser_def.c:602
actionTPS_InProtocolFirst
static const TParserStateActionItem actionTPS_InProtocolFirst[]
Definition: wparser_def.c:1469
actionTPS_InUnsignedInt
static const TParserStateActionItem actionTPS_InUnsignedInt[]
Definition: wparser_def.c:1013
actionTPS_InUDecimalFirst
static const TParserStateActionItem actionTPS_InUDecimalFirst[]
Definition: wparser_def.c:1057
actionTPS_InTagCloseFirst
static const TParserStateActionItem actionTPS_InTagCloseFirst[]
Definition: wparser_def.c:1204
p_isEOF
static int p_isEOF(TParser *prs)
Definition: wparser_def.c:473
actionTPS_InCloseCommentLast
static const TParserStateActionItem actionTPS_InCloseCommentLast[]
Definition: wparser_def.c:1302
TParserCopyClose
static void TParserCopyClose(TParser *prs)
Definition: wparser_def.c:396
A_CLEAR
#define A_CLEAR
Definition: wparser_def.c:223
actionTPS_InFileFirst
static const TParserStateActionItem actionTPS_InFileFirst[]
Definition: wparser_def.c:1384
actionTPS_InNumWord
static const TParserStateActionItem actionTPS_InNumWord[]
Definition: wparser_def.c:975
actionTPS_InFileTwiddle
static const TParserStateActionItem actionTPS_InFileTwiddle[]
Definition: wparser_def.c:1394
actionTPS_InHost
static const TParserStateActionItem actionTPS_InHost[]
Definition: wparser_def.c:1367
A_PUSH
#define A_PUSH
Definition: wparser_def.c:221
actionTPS_InTagBackSleshed
static const TParserStateActionItem actionTPS_InTagBackSleshed[]
Definition: wparser_def.c:1266
actionTPS_InProtocolSecond
static const TParserStateActionItem actionTPS_InProtocolSecond[]
Definition: wparser_def.c:1475
actionTPS_InWord
static const TParserStateActionItem actionTPS_InWord[]
Definition: wparser_def.c:1004
p_isspecial
static int p_isspecial(TParser *prs)
Definition: wparser_def.c:679
TParserClose
static void TParserClose(TParser *prs)
Definition: wparser_def.c:371
URL_T
#define URL_T
Definition: wparser_def.c:38
actionTPS_InXMLEntityNum
static const TParserStateActionItem actionTPS_InXMLEntityNum[]
Definition: wparser_def.c:1167
actionTPS_InVerVersion
static const TParserStateActionItem actionTPS_InVerVersion[]
Definition: wparser_def.c:1087
actionTPS_InHyphenAsciiWord
static const TParserStateActionItem actionTPS_InHyphenAsciiWord[]
Definition: wparser_def.c:1493
actionTPS_InXMLEntityHexNum
static const TParserStateActionItem actionTPS_InXMLEntityHexNum[]
Definition: wparser_def.c:1174
A_NEXT
#define A_NEXT
Definition: wparser_def.c:218
actionTPS_InPortFirst
static const TParserStateActionItem actionTPS_InPortFirst[]
Definition: wparser_def.c:1346
HWORD
#define HWORD
Definition: wparser_def.c:50
NUMPARTHWORD
#define NUMPARTHWORD
Definition: wparser_def.c:42
lex_descr
static const char *const lex_descr[]
Definition: wparser_def.c:87
INTERESTINGWORD
#define INTERESTINGWORD(j)
Definition: wparser_def.c:1931
SCIENTIFIC
#define SCIENTIFIC
Definition: wparser_def.c:40
SpecialTags
static void SpecialTags(TParser *prs)
Definition: wparser_def.c:563
actionTPS_InTagEnd
static const TParserStateActionItem actionTPS_InTagEnd[]
Definition: wparser_def.c:1271
actionTPS_InComment
static const TParserStateActionItem actionTPS_InComment[]
Definition: wparser_def.c:1290
actionTPS_InProtocolEnd
static const TParserStateActionItem actionTPS_InProtocolEnd[]
Definition: wparser_def.c:1481
actionTPS_InURLPathFirst
static const TParserStateActionItem actionTPS_InURLPathFirst[]
Definition: wparser_def.c:1447
actionTPS_InPathFirstFirst
static const TParserStateActionItem actionTPS_InPathFirstFirst[]
Definition: wparser_def.c:1413