xmlrole.c 31.6 KB
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/* Copyright (c) 1998, 1999 Thai Open Source Software Center Ltd
   See the file COPYING for copying permission.
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*/

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#include <stddef.h>

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#ifdef COMPILED_FROM_DSP
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#include "winconfig.h"
#elif defined(MACOS_CLASSIC)
#include "macconfig.h"
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#else
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#ifdef HAVE_EXPAT_CONFIG_H
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#include <expat_config.h>
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#endif
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#endif /* ndef COMPILED_FROM_DSP */

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#include "expat_external.h"
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#include "internal.h"
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#include "xmlrole.h"
#include "ascii.h"

/* Doesn't check:

 that ,| are not mixed in a model group
 content of literals

*/

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static const char KW_ANY[] = {
    ASCII_A, ASCII_N, ASCII_Y, '\0' };
static const char KW_ATTLIST[] = {
    ASCII_A, ASCII_T, ASCII_T, ASCII_L, ASCII_I, ASCII_S, ASCII_T, '\0' };
static const char KW_CDATA[] = {
    ASCII_C, ASCII_D, ASCII_A, ASCII_T, ASCII_A, '\0' };
static const char KW_DOCTYPE[] = {
    ASCII_D, ASCII_O, ASCII_C, ASCII_T, ASCII_Y, ASCII_P, ASCII_E, '\0' };
static const char KW_ELEMENT[] = {
    ASCII_E, ASCII_L, ASCII_E, ASCII_M, ASCII_E, ASCII_N, ASCII_T, '\0' };
static const char KW_EMPTY[] = {
    ASCII_E, ASCII_M, ASCII_P, ASCII_T, ASCII_Y, '\0' };
static const char KW_ENTITIES[] = {
    ASCII_E, ASCII_N, ASCII_T, ASCII_I, ASCII_T, ASCII_I, ASCII_E, ASCII_S,
    '\0' };
static const char KW_ENTITY[] = {
    ASCII_E, ASCII_N, ASCII_T, ASCII_I, ASCII_T, ASCII_Y, '\0' };
static const char KW_FIXED[] = {
    ASCII_F, ASCII_I, ASCII_X, ASCII_E, ASCII_D, '\0' };
static const char KW_ID[] = {
    ASCII_I, ASCII_D, '\0' };
static const char KW_IDREF[] = {
    ASCII_I, ASCII_D, ASCII_R, ASCII_E, ASCII_F, '\0' };
static const char KW_IDREFS[] = {
    ASCII_I, ASCII_D, ASCII_R, ASCII_E, ASCII_F, ASCII_S, '\0' };
static const char KW_IGNORE[] = {
    ASCII_I, ASCII_G, ASCII_N, ASCII_O, ASCII_R, ASCII_E, '\0' };
static const char KW_IMPLIED[] = {
    ASCII_I, ASCII_M, ASCII_P, ASCII_L, ASCII_I, ASCII_E, ASCII_D, '\0' };
static const char KW_INCLUDE[] = {
    ASCII_I, ASCII_N, ASCII_C, ASCII_L, ASCII_U, ASCII_D, ASCII_E, '\0' };
static const char KW_NDATA[] = {
    ASCII_N, ASCII_D, ASCII_A, ASCII_T, ASCII_A, '\0' };
static const char KW_NMTOKEN[] = {
    ASCII_N, ASCII_M, ASCII_T, ASCII_O, ASCII_K, ASCII_E, ASCII_N, '\0' };
static const char KW_NMTOKENS[] = {
    ASCII_N, ASCII_M, ASCII_T, ASCII_O, ASCII_K, ASCII_E, ASCII_N, ASCII_S,
    '\0' };
static const char KW_NOTATION[] =
    { ASCII_N, ASCII_O, ASCII_T, ASCII_A, ASCII_T, ASCII_I, ASCII_O, ASCII_N,
      '\0' };
static const char KW_PCDATA[] = {
    ASCII_P, ASCII_C, ASCII_D, ASCII_A, ASCII_T, ASCII_A, '\0' };
static const char KW_PUBLIC[] = {
    ASCII_P, ASCII_U, ASCII_B, ASCII_L, ASCII_I, ASCII_C, '\0' };
static const char KW_REQUIRED[] = {
    ASCII_R, ASCII_E, ASCII_Q, ASCII_U, ASCII_I, ASCII_R, ASCII_E, ASCII_D,
    '\0' };
static const char KW_SYSTEM[] = {
    ASCII_S, ASCII_Y, ASCII_S, ASCII_T, ASCII_E, ASCII_M, '\0' };
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#ifndef MIN_BYTES_PER_CHAR
#define MIN_BYTES_PER_CHAR(enc) ((enc)->minBytesPerChar)
#endif

#ifdef XML_DTD
#define setTopLevel(state) \
  ((state)->handler = ((state)->documentEntity \
                       ? internalSubset \
                       : externalSubset1))
#else /* not XML_DTD */
#define setTopLevel(state) ((state)->handler = internalSubset)
#endif /* not XML_DTD */

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typedef int PTRCALL PROLOG_HANDLER(PROLOG_STATE *state,
                                   int tok,
                                   const char *ptr,
                                   const char *end,
                                   const ENCODING *enc);
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static PROLOG_HANDLER
  prolog0, prolog1, prolog2,
  doctype0, doctype1, doctype2, doctype3, doctype4, doctype5,
  internalSubset,
  entity0, entity1, entity2, entity3, entity4, entity5, entity6,
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  entity7, entity8, entity9, entity10,
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  notation0, notation1, notation2, notation3, notation4,
  attlist0, attlist1, attlist2, attlist3, attlist4, attlist5, attlist6,
  attlist7, attlist8, attlist9,
  element0, element1, element2, element3, element4, element5, element6,
  element7,
#ifdef XML_DTD
  externalSubset0, externalSubset1,
  condSect0, condSect1, condSect2,
#endif /* XML_DTD */
  declClose,
  error;

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static int FASTCALL common(PROLOG_STATE *state, int tok);
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static int PTRCALL
prolog0(PROLOG_STATE *state,
        int tok,
        const char *ptr,
        const char *end,
        const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
    state->handler = prolog1;
    return XML_ROLE_NONE;
  case XML_TOK_XML_DECL:
    state->handler = prolog1;
    return XML_ROLE_XML_DECL;
  case XML_TOK_PI:
    state->handler = prolog1;
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    return XML_ROLE_PI;
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  case XML_TOK_COMMENT:
    state->handler = prolog1;
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    return XML_ROLE_COMMENT;
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  case XML_TOK_BOM:
    return XML_ROLE_NONE;
  case XML_TOK_DECL_OPEN:
    if (!XmlNameMatchesAscii(enc,
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                             ptr + 2 * MIN_BYTES_PER_CHAR(enc),
                             end,
                             KW_DOCTYPE))
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      break;
    state->handler = doctype0;
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    return XML_ROLE_DOCTYPE_NONE;
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  case XML_TOK_INSTANCE_START:
    state->handler = error;
    return XML_ROLE_INSTANCE_START;
  }
  return common(state, tok);
}

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static int PTRCALL
prolog1(PROLOG_STATE *state,
        int tok,
        const char *ptr,
        const char *end,
        const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
    return XML_ROLE_NONE;
  case XML_TOK_PI:
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    return XML_ROLE_PI;
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  case XML_TOK_COMMENT:
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    return XML_ROLE_COMMENT;
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  case XML_TOK_BOM:
    return XML_ROLE_NONE;
  case XML_TOK_DECL_OPEN:
    if (!XmlNameMatchesAscii(enc,
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                             ptr + 2 * MIN_BYTES_PER_CHAR(enc),
                             end,
                             KW_DOCTYPE))
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      break;
    state->handler = doctype0;
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    return XML_ROLE_DOCTYPE_NONE;
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  case XML_TOK_INSTANCE_START:
    state->handler = error;
    return XML_ROLE_INSTANCE_START;
  }
  return common(state, tok);
}

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static int PTRCALL
prolog2(PROLOG_STATE *state,
        int tok,
        const char *ptr,
        const char *end,
        const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
    return XML_ROLE_NONE;
  case XML_TOK_PI:
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    return XML_ROLE_PI;
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  case XML_TOK_COMMENT:
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    return XML_ROLE_COMMENT;
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  case XML_TOK_INSTANCE_START:
    state->handler = error;
    return XML_ROLE_INSTANCE_START;
  }
  return common(state, tok);
}

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static int PTRCALL
doctype0(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_DOCTYPE_NONE;
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  case XML_TOK_NAME:
  case XML_TOK_PREFIXED_NAME:
    state->handler = doctype1;
    return XML_ROLE_DOCTYPE_NAME;
  }
  return common(state, tok);
}

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static int PTRCALL
doctype1(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_DOCTYPE_NONE;
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  case XML_TOK_OPEN_BRACKET:
    state->handler = internalSubset;
    return XML_ROLE_DOCTYPE_INTERNAL_SUBSET;
  case XML_TOK_DECL_CLOSE:
    state->handler = prolog2;
    return XML_ROLE_DOCTYPE_CLOSE;
  case XML_TOK_NAME:
    if (XmlNameMatchesAscii(enc, ptr, end, KW_SYSTEM)) {
      state->handler = doctype3;
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      return XML_ROLE_DOCTYPE_NONE;
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    }
    if (XmlNameMatchesAscii(enc, ptr, end, KW_PUBLIC)) {
      state->handler = doctype2;
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      return XML_ROLE_DOCTYPE_NONE;
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    }
    break;
  }
  return common(state, tok);
}

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static int PTRCALL
doctype2(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_DOCTYPE_NONE;
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  case XML_TOK_LITERAL:
    state->handler = doctype3;
    return XML_ROLE_DOCTYPE_PUBLIC_ID;
  }
  return common(state, tok);
}

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static int PTRCALL
doctype3(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_DOCTYPE_NONE;
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  case XML_TOK_LITERAL:
    state->handler = doctype4;
    return XML_ROLE_DOCTYPE_SYSTEM_ID;
  }
  return common(state, tok);
}

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static int PTRCALL
doctype4(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_DOCTYPE_NONE;
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  case XML_TOK_OPEN_BRACKET:
    state->handler = internalSubset;
    return XML_ROLE_DOCTYPE_INTERNAL_SUBSET;
  case XML_TOK_DECL_CLOSE:
    state->handler = prolog2;
    return XML_ROLE_DOCTYPE_CLOSE;
  }
  return common(state, tok);
}

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static int PTRCALL
doctype5(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_DOCTYPE_NONE;
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  case XML_TOK_DECL_CLOSE:
    state->handler = prolog2;
    return XML_ROLE_DOCTYPE_CLOSE;
  }
  return common(state, tok);
}

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static int PTRCALL
internalSubset(PROLOG_STATE *state,
               int tok,
               const char *ptr,
               const char *end,
               const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
    return XML_ROLE_NONE;
  case XML_TOK_DECL_OPEN:
    if (XmlNameMatchesAscii(enc,
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                            ptr + 2 * MIN_BYTES_PER_CHAR(enc),
                            end,
                            KW_ENTITY)) {
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      state->handler = entity0;
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      return XML_ROLE_ENTITY_NONE;
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    }
    if (XmlNameMatchesAscii(enc,
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                            ptr + 2 * MIN_BYTES_PER_CHAR(enc),
                            end,
                            KW_ATTLIST)) {
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      state->handler = attlist0;
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      return XML_ROLE_ATTLIST_NONE;
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    }
    if (XmlNameMatchesAscii(enc,
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                            ptr + 2 * MIN_BYTES_PER_CHAR(enc),
                            end,
                            KW_ELEMENT)) {
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      state->handler = element0;
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      return XML_ROLE_ELEMENT_NONE;
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    }
    if (XmlNameMatchesAscii(enc,
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                            ptr + 2 * MIN_BYTES_PER_CHAR(enc),
                            end,
                            KW_NOTATION)) {
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      state->handler = notation0;
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      return XML_ROLE_NOTATION_NONE;
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    }
    break;
  case XML_TOK_PI:
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    return XML_ROLE_PI;
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  case XML_TOK_COMMENT:
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    return XML_ROLE_COMMENT;
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  case XML_TOK_PARAM_ENTITY_REF:
    return XML_ROLE_PARAM_ENTITY_REF;
  case XML_TOK_CLOSE_BRACKET:
    state->handler = doctype5;
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    return XML_ROLE_DOCTYPE_NONE;
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  case XML_TOK_NONE:
    return XML_ROLE_NONE;
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  }
  return common(state, tok);
}

#ifdef XML_DTD

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static int PTRCALL
externalSubset0(PROLOG_STATE *state,
                int tok,
                const char *ptr,
                const char *end,
                const ENCODING *enc)
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{
  state->handler = externalSubset1;
  if (tok == XML_TOK_XML_DECL)
    return XML_ROLE_TEXT_DECL;
  return externalSubset1(state, tok, ptr, end, enc);
}

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static int PTRCALL
externalSubset1(PROLOG_STATE *state,
                int tok,
                const char *ptr,
                const char *end,
                const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_COND_SECT_OPEN:
    state->handler = condSect0;
    return XML_ROLE_NONE;
  case XML_TOK_COND_SECT_CLOSE:
    if (state->includeLevel == 0)
      break;
    state->includeLevel -= 1;
    return XML_ROLE_NONE;
  case XML_TOK_PROLOG_S:
    return XML_ROLE_NONE;
  case XML_TOK_CLOSE_BRACKET:
    break;
  case XML_TOK_NONE:
    if (state->includeLevel)
      break;
    return XML_ROLE_NONE;
  default:
    return internalSubset(state, tok, ptr, end, enc);
  }
  return common(state, tok);
}

#endif /* XML_DTD */

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static int PTRCALL
entity0(PROLOG_STATE *state,
        int tok,
        const char *ptr,
        const char *end,
        const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ENTITY_NONE;
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  case XML_TOK_PERCENT:
    state->handler = entity1;
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    return XML_ROLE_ENTITY_NONE;
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  case XML_TOK_NAME:
    state->handler = entity2;
    return XML_ROLE_GENERAL_ENTITY_NAME;
  }
  return common(state, tok);
}

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static int PTRCALL
entity1(PROLOG_STATE *state,
        int tok,
        const char *ptr,
        const char *end,
        const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ENTITY_NONE;
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  case XML_TOK_NAME:
    state->handler = entity7;
    return XML_ROLE_PARAM_ENTITY_NAME;
  }
  return common(state, tok);
}

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static int PTRCALL
entity2(PROLOG_STATE *state,
        int tok,
        const char *ptr,
        const char *end,
        const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ENTITY_NONE;
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  case XML_TOK_NAME:
    if (XmlNameMatchesAscii(enc, ptr, end, KW_SYSTEM)) {
      state->handler = entity4;
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      return XML_ROLE_ENTITY_NONE;
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    }
    if (XmlNameMatchesAscii(enc, ptr, end, KW_PUBLIC)) {
      state->handler = entity3;
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      return XML_ROLE_ENTITY_NONE;
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    }
    break;
  case XML_TOK_LITERAL:
    state->handler = declClose;
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    state->role_none = XML_ROLE_ENTITY_NONE;
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    return XML_ROLE_ENTITY_VALUE;
  }
  return common(state, tok);
}

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static int PTRCALL
entity3(PROLOG_STATE *state,
        int tok,
        const char *ptr,
        const char *end,
        const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ENTITY_NONE;
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  case XML_TOK_LITERAL:
    state->handler = entity4;
    return XML_ROLE_ENTITY_PUBLIC_ID;
  }
  return common(state, tok);
}

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static int PTRCALL
entity4(PROLOG_STATE *state,
        int tok,
        const char *ptr,
        const char *end,
        const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ENTITY_NONE;
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  case XML_TOK_LITERAL:
    state->handler = entity5;
    return XML_ROLE_ENTITY_SYSTEM_ID;
  }
  return common(state, tok);
}

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static int PTRCALL
entity5(PROLOG_STATE *state,
        int tok,
        const char *ptr,
        const char *end,
        const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ENTITY_NONE;
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  case XML_TOK_DECL_CLOSE:
    setTopLevel(state);
    return XML_ROLE_ENTITY_COMPLETE;
  case XML_TOK_NAME:
    if (XmlNameMatchesAscii(enc, ptr, end, KW_NDATA)) {
      state->handler = entity6;
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      return XML_ROLE_ENTITY_NONE;
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    }
    break;
  }
  return common(state, tok);
}

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static int PTRCALL
entity6(PROLOG_STATE *state,
        int tok,
        const char *ptr,
        const char *end,
        const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ENTITY_NONE;
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  case XML_TOK_NAME:
    state->handler = declClose;
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    state->role_none = XML_ROLE_ENTITY_NONE;
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    return XML_ROLE_ENTITY_NOTATION_NAME;
  }
  return common(state, tok);
}

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static int PTRCALL
entity7(PROLOG_STATE *state,
        int tok,
        const char *ptr,
        const char *end,
        const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ENTITY_NONE;
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  case XML_TOK_NAME:
    if (XmlNameMatchesAscii(enc, ptr, end, KW_SYSTEM)) {
      state->handler = entity9;
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      return XML_ROLE_ENTITY_NONE;
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    }
    if (XmlNameMatchesAscii(enc, ptr, end, KW_PUBLIC)) {
      state->handler = entity8;
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      return XML_ROLE_ENTITY_NONE;
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    }
    break;
  case XML_TOK_LITERAL:
    state->handler = declClose;
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    state->role_none = XML_ROLE_ENTITY_NONE;
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    return XML_ROLE_ENTITY_VALUE;
  }
  return common(state, tok);
}

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static int PTRCALL
entity8(PROLOG_STATE *state,
        int tok,
        const char *ptr,
        const char *end,
        const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ENTITY_NONE;
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  case XML_TOK_LITERAL:
    state->handler = entity9;
    return XML_ROLE_ENTITY_PUBLIC_ID;
  }
  return common(state, tok);
}

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static int PTRCALL
entity9(PROLOG_STATE *state,
        int tok,
        const char *ptr,
        const char *end,
        const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ENTITY_NONE;
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  case XML_TOK_LITERAL:
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    state->handler = entity10;
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    return XML_ROLE_ENTITY_SYSTEM_ID;
  }
  return common(state, tok);
}

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static int PTRCALL
entity10(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ENTITY_NONE;
  case XML_TOK_DECL_CLOSE:
    setTopLevel(state);
    return XML_ROLE_ENTITY_COMPLETE;
  }
  return common(state, tok);
}

static int PTRCALL
notation0(PROLOG_STATE *state,
          int tok,
          const char *ptr,
          const char *end,
          const ENCODING *enc)
{
  switch (tok) {
  case XML_TOK_PROLOG_S:
    return XML_ROLE_NOTATION_NONE;
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  case XML_TOK_NAME:
    state->handler = notation1;
    return XML_ROLE_NOTATION_NAME;
  }
  return common(state, tok);
}

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static int PTRCALL
notation1(PROLOG_STATE *state,
          int tok,
          const char *ptr,
          const char *end,
          const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_NOTATION_NONE;
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  case XML_TOK_NAME:
    if (XmlNameMatchesAscii(enc, ptr, end, KW_SYSTEM)) {
      state->handler = notation3;
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      return XML_ROLE_NOTATION_NONE;
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    }
    if (XmlNameMatchesAscii(enc, ptr, end, KW_PUBLIC)) {
      state->handler = notation2;
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      return XML_ROLE_NOTATION_NONE;
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    }
    break;
  }
  return common(state, tok);
}

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static int PTRCALL
notation2(PROLOG_STATE *state,
          int tok,
          const char *ptr,
          const char *end,
          const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_NOTATION_NONE;
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  case XML_TOK_LITERAL:
    state->handler = notation4;
    return XML_ROLE_NOTATION_PUBLIC_ID;
  }
  return common(state, tok);
}

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static int PTRCALL
notation3(PROLOG_STATE *state,
          int tok,
          const char *ptr,
          const char *end,
          const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_NOTATION_NONE;
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  case XML_TOK_LITERAL:
    state->handler = declClose;
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    state->role_none = XML_ROLE_NOTATION_NONE;
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    return XML_ROLE_NOTATION_SYSTEM_ID;
  }
  return common(state, tok);
}

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static int PTRCALL
notation4(PROLOG_STATE *state,
          int tok,
          const char *ptr,
          const char *end,
          const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_NOTATION_NONE;
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  case XML_TOK_LITERAL:
    state->handler = declClose;
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    state->role_none = XML_ROLE_NOTATION_NONE;
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    return XML_ROLE_NOTATION_SYSTEM_ID;
  case XML_TOK_DECL_CLOSE:
    setTopLevel(state);
    return XML_ROLE_NOTATION_NO_SYSTEM_ID;
  }
  return common(state, tok);
}

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static int PTRCALL
attlist0(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ATTLIST_NONE;
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  case XML_TOK_NAME:
  case XML_TOK_PREFIXED_NAME:
    state->handler = attlist1;
    return XML_ROLE_ATTLIST_ELEMENT_NAME;
  }
  return common(state, tok);
}

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static int PTRCALL
attlist1(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ATTLIST_NONE;
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  case XML_TOK_DECL_CLOSE:
    setTopLevel(state);
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    return XML_ROLE_ATTLIST_NONE;
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  case XML_TOK_NAME:
  case XML_TOK_PREFIXED_NAME:
    state->handler = attlist2;
    return XML_ROLE_ATTRIBUTE_NAME;
  }
  return common(state, tok);
}

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static int PTRCALL
attlist2(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ATTLIST_NONE;
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  case XML_TOK_NAME:
    {
      static const char *types[] = {
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        KW_CDATA,
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        KW_ID,
        KW_IDREF,
        KW_IDREFS,
        KW_ENTITY,
        KW_ENTITIES,
        KW_NMTOKEN,
        KW_NMTOKENS,
      };
      int i;
      for (i = 0; i < (int)(sizeof(types)/sizeof(types[0])); i++)
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        if (XmlNameMatchesAscii(enc, ptr, end, types[i])) {
          state->handler = attlist8;
          return XML_ROLE_ATTRIBUTE_TYPE_CDATA + i;
        }
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    }
    if (XmlNameMatchesAscii(enc, ptr, end, KW_NOTATION)) {
      state->handler = attlist5;
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      return XML_ROLE_ATTLIST_NONE;
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    }
    break;
  case XML_TOK_OPEN_PAREN:
    state->handler = attlist3;
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    return XML_ROLE_ATTLIST_NONE;
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  }
  return common(state, tok);
}

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static int PTRCALL
attlist3(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ATTLIST_NONE;
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  case XML_TOK_NMTOKEN:
  case XML_TOK_NAME:
  case XML_TOK_PREFIXED_NAME:
    state->handler = attlist4;
    return XML_ROLE_ATTRIBUTE_ENUM_VALUE;
  }
  return common(state, tok);
}

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static int PTRCALL
attlist4(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ATTLIST_NONE;
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  case XML_TOK_CLOSE_PAREN:
    state->handler = attlist8;
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    return XML_ROLE_ATTLIST_NONE;
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  case XML_TOK_OR:
    state->handler = attlist3;
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    return XML_ROLE_ATTLIST_NONE;
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  }
  return common(state, tok);
}

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static int PTRCALL
attlist5(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ATTLIST_NONE;
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  case XML_TOK_OPEN_PAREN:
    state->handler = attlist6;
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    return XML_ROLE_ATTLIST_NONE;
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  }
  return common(state, tok);
}

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static int PTRCALL
attlist6(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ATTLIST_NONE;
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  case XML_TOK_NAME:
    state->handler = attlist7;
    return XML_ROLE_ATTRIBUTE_NOTATION_VALUE;
  }
  return common(state, tok);
}

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static int PTRCALL
attlist7(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ATTLIST_NONE;
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  case XML_TOK_CLOSE_PAREN:
    state->handler = attlist8;
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    return XML_ROLE_ATTLIST_NONE;
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  case XML_TOK_OR:
    state->handler = attlist6;
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    return XML_ROLE_ATTLIST_NONE;
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  }
  return common(state, tok);
}

/* default value */
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static int PTRCALL
attlist8(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ATTLIST_NONE;
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  case XML_TOK_POUND_NAME:
    if (XmlNameMatchesAscii(enc,
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                            ptr + MIN_BYTES_PER_CHAR(enc),
                            end,
                            KW_IMPLIED)) {
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      state->handler = attlist1;
      return XML_ROLE_IMPLIED_ATTRIBUTE_VALUE;
    }
    if (XmlNameMatchesAscii(enc,
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                            ptr + MIN_BYTES_PER_CHAR(enc),
                            end,
                            KW_REQUIRED)) {
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      state->handler = attlist1;
      return XML_ROLE_REQUIRED_ATTRIBUTE_VALUE;
    }
    if (XmlNameMatchesAscii(enc,
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                            ptr + MIN_BYTES_PER_CHAR(enc),
                            end,
                            KW_FIXED)) {
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      state->handler = attlist9;
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      return XML_ROLE_ATTLIST_NONE;
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    }
    break;
  case XML_TOK_LITERAL:
    state->handler = attlist1;
    return XML_ROLE_DEFAULT_ATTRIBUTE_VALUE;
  }
  return common(state, tok);
}

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static int PTRCALL
attlist9(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ATTLIST_NONE;
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  case XML_TOK_LITERAL:
    state->handler = attlist1;
    return XML_ROLE_FIXED_ATTRIBUTE_VALUE;
  }
  return common(state, tok);
}

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static int PTRCALL
element0(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ELEMENT_NONE;
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  case XML_TOK_NAME:
  case XML_TOK_PREFIXED_NAME:
    state->handler = element1;
    return XML_ROLE_ELEMENT_NAME;
  }
  return common(state, tok);
}

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static int PTRCALL
element1(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ELEMENT_NONE;
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  case XML_TOK_NAME:
    if (XmlNameMatchesAscii(enc, ptr, end, KW_EMPTY)) {
      state->handler = declClose;
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      state->role_none = XML_ROLE_ELEMENT_NONE;
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      return XML_ROLE_CONTENT_EMPTY;
    }
    if (XmlNameMatchesAscii(enc, ptr, end, KW_ANY)) {
      state->handler = declClose;
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      state->role_none = XML_ROLE_ELEMENT_NONE;
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      return XML_ROLE_CONTENT_ANY;
    }
    break;
  case XML_TOK_OPEN_PAREN:
    state->handler = element2;
    state->level = 1;
    return XML_ROLE_GROUP_OPEN;
  }
  return common(state, tok);
}

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static int PTRCALL
element2(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ELEMENT_NONE;
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  case XML_TOK_POUND_NAME:
    if (XmlNameMatchesAscii(enc,
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                            ptr + MIN_BYTES_PER_CHAR(enc),
                            end,
                            KW_PCDATA)) {
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      state->handler = element3;
      return XML_ROLE_CONTENT_PCDATA;
    }
    break;
  case XML_TOK_OPEN_PAREN:
    state->level = 2;
    state->handler = element6;
    return XML_ROLE_GROUP_OPEN;
  case XML_TOK_NAME:
  case XML_TOK_PREFIXED_NAME:
    state->handler = element7;
    return XML_ROLE_CONTENT_ELEMENT;
  case XML_TOK_NAME_QUESTION:
    state->handler = element7;
    return XML_ROLE_CONTENT_ELEMENT_OPT;
  case XML_TOK_NAME_ASTERISK:
    state->handler = element7;
    return XML_ROLE_CONTENT_ELEMENT_REP;
  case XML_TOK_NAME_PLUS:
    state->handler = element7;
    return XML_ROLE_CONTENT_ELEMENT_PLUS;
  }
  return common(state, tok);
}

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static int PTRCALL
element3(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ELEMENT_NONE;
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  case XML_TOK_CLOSE_PAREN:
    state->handler = declClose;
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    state->role_none = XML_ROLE_ELEMENT_NONE;
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    return XML_ROLE_GROUP_CLOSE;
  case XML_TOK_CLOSE_PAREN_ASTERISK:
    state->handler = declClose;
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    state->role_none = XML_ROLE_ELEMENT_NONE;
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    return XML_ROLE_GROUP_CLOSE_REP;
  case XML_TOK_OR:
    state->handler = element4;
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    return XML_ROLE_ELEMENT_NONE;
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  }
  return common(state, tok);
}

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static int PTRCALL
element4(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ELEMENT_NONE;
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  case XML_TOK_NAME:
  case XML_TOK_PREFIXED_NAME:
    state->handler = element5;
    return XML_ROLE_CONTENT_ELEMENT;
  }
  return common(state, tok);
}

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static int PTRCALL
element5(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ELEMENT_NONE;
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  case XML_TOK_CLOSE_PAREN_ASTERISK:
    state->handler = declClose;
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    state->role_none = XML_ROLE_ELEMENT_NONE;
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    return XML_ROLE_GROUP_CLOSE_REP;
  case XML_TOK_OR:
    state->handler = element4;
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    return XML_ROLE_ELEMENT_NONE;
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  }
  return common(state, tok);
}

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static int PTRCALL
element6(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ELEMENT_NONE;
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  case XML_TOK_OPEN_PAREN:
    state->level += 1;
    return XML_ROLE_GROUP_OPEN;
  case XML_TOK_NAME:
  case XML_TOK_PREFIXED_NAME:
    state->handler = element7;
    return XML_ROLE_CONTENT_ELEMENT;
  case XML_TOK_NAME_QUESTION:
    state->handler = element7;
    return XML_ROLE_CONTENT_ELEMENT_OPT;
  case XML_TOK_NAME_ASTERISK:
    state->handler = element7;
    return XML_ROLE_CONTENT_ELEMENT_REP;
  case XML_TOK_NAME_PLUS:
    state->handler = element7;
    return XML_ROLE_CONTENT_ELEMENT_PLUS;
  }
  return common(state, tok);
}

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static int PTRCALL
element7(PROLOG_STATE *state,
         int tok,
         const char *ptr,
         const char *end,
         const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return XML_ROLE_ELEMENT_NONE;
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  case XML_TOK_CLOSE_PAREN:
    state->level -= 1;
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    if (state->level == 0) {
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      state->handler = declClose;
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      state->role_none = XML_ROLE_ELEMENT_NONE;
    }
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    return XML_ROLE_GROUP_CLOSE;
  case XML_TOK_CLOSE_PAREN_ASTERISK:
    state->level -= 1;
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    if (state->level == 0) {
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      state->handler = declClose;
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      state->role_none = XML_ROLE_ELEMENT_NONE;
    }
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    return XML_ROLE_GROUP_CLOSE_REP;
  case XML_TOK_CLOSE_PAREN_QUESTION:
    state->level -= 1;
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    if (state->level == 0) {
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      state->handler = declClose;
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      state->role_none = XML_ROLE_ELEMENT_NONE;
    }
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    return XML_ROLE_GROUP_CLOSE_OPT;
  case XML_TOK_CLOSE_PAREN_PLUS:
    state->level -= 1;
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    if (state->level == 0) {
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      state->handler = declClose;
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      state->role_none = XML_ROLE_ELEMENT_NONE;
    }
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    return XML_ROLE_GROUP_CLOSE_PLUS;
  case XML_TOK_COMMA:
    state->handler = element6;
    return XML_ROLE_GROUP_SEQUENCE;
  case XML_TOK_OR:
    state->handler = element6;
    return XML_ROLE_GROUP_CHOICE;
  }
  return common(state, tok);
}

#ifdef XML_DTD

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static int PTRCALL
condSect0(PROLOG_STATE *state,
          int tok,
          const char *ptr,
          const char *end,
          const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
    return XML_ROLE_NONE;
  case XML_TOK_NAME:
    if (XmlNameMatchesAscii(enc, ptr, end, KW_INCLUDE)) {
      state->handler = condSect1;
      return XML_ROLE_NONE;
    }
    if (XmlNameMatchesAscii(enc, ptr, end, KW_IGNORE)) {
      state->handler = condSect2;
      return XML_ROLE_NONE;
    }
    break;
  }
  return common(state, tok);
}

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static int PTRCALL
condSect1(PROLOG_STATE *state,
          int tok,
          const char *ptr,
          const char *end,
          const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
    return XML_ROLE_NONE;
  case XML_TOK_OPEN_BRACKET:
    state->handler = externalSubset1;
    state->includeLevel += 1;
    return XML_ROLE_NONE;
  }
  return common(state, tok);
}

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static int PTRCALL
condSect2(PROLOG_STATE *state,
          int tok,
          const char *ptr,
          const char *end,
          const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
    return XML_ROLE_NONE;
  case XML_TOK_OPEN_BRACKET:
    state->handler = externalSubset1;
    return XML_ROLE_IGNORE_SECT;
  }
  return common(state, tok);
}

#endif /* XML_DTD */

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static int PTRCALL
declClose(PROLOG_STATE *state,
          int tok,
          const char *ptr,
          const char *end,
          const ENCODING *enc)
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{
  switch (tok) {
  case XML_TOK_PROLOG_S:
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    return state->role_none;
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  case XML_TOK_DECL_CLOSE:
    setTopLevel(state);
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    return state->role_none;
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  }
  return common(state, tok);
}

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static int PTRCALL
error(PROLOG_STATE *state,
      int tok,
      const char *ptr,
      const char *end,
      const ENCODING *enc)
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{
  return XML_ROLE_NONE;
}

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static int FASTCALL
common(PROLOG_STATE *state, int tok)
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{
#ifdef XML_DTD
  if (!state->documentEntity && tok == XML_TOK_PARAM_ENTITY_REF)
    return XML_ROLE_INNER_PARAM_ENTITY_REF;
#endif
  state->handler = error;
  return XML_ROLE_ERROR;
}

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void
XmlPrologStateInit(PROLOG_STATE *state)
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{
  state->handler = prolog0;
#ifdef XML_DTD
  state->documentEntity = 1;
  state->includeLevel = 0;
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  state->inEntityValue = 0;
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#endif /* XML_DTD */
}

#ifdef XML_DTD

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void
XmlPrologStateInitExternalEntity(PROLOG_STATE *state)
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{
  state->handler = externalSubset0;
  state->documentEntity = 0;
  state->includeLevel = 0;
}

#endif /* XML_DTD */