xmlrole.c

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/*
The contents of this file are subject to the Mozilla Public License
Version 1.0 (the "License"); you may not use this file except in
compliance with the License. You may obtain a copy of the License at
http://www.mozilla.org/MPL/

Software distributed under the License is distributed on an "AS IS"
basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
License for the specific language governing rights and limitations
under the License.

The Original Code is expat.

The Initial Developer of the Original Code is James Clark.
Portions created by James Clark are Copyright (C) 1998
James Clark. All Rights Reserved.

Contributor(s):
*/

#include "xmldef.h"
#include "xmlrole.h"

/* Doesn't check:

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

*/

#ifndef MIN_BYTES_PER_CHAR
#define MIN_BYTES_PER_CHAR(enc) ((enc)->minBytesPerChar)
#endif

typedef int PROLOG_HANDLER(struct prolog_state *state,
			   int tok,
			   const char *ptr,
			   const char *end,
			   const ENCODING *enc);

static PROLOG_HANDLER
  prolog0, prolog1, prolog2,
  doctype0, doctype1, doctype2, doctype3, doctype4, doctype5,
  internalSubset,
  entity0, entity1, entity2, entity3, entity4, entity5, entity6,
  entity7, entity8, entity9,
  notation0, notation1, notation2, notation3, notation4,
  attlist0, attlist1, attlist2, attlist3, attlist4, attlist5, attlist6,
  attlist7, attlist8, attlist9,
  element0, element1, element2, element3, element4, element5, element6,
  element7,
  declClose,
  error;

static
int syntaxError(PROLOG_STATE *);

static
int prolog0(PROLOG_STATE *state,
	    int tok,
	    const char *ptr,
	    const char *end,
	    const ENCODING *enc)
{
  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;
    return XML_ROLE_NONE;
  case XML_TOK_COMMENT:
    state->handler = prolog1;
  case XML_TOK_BOM:
    return XML_ROLE_NONE;
  case XML_TOK_DECL_OPEN:
    if (!XmlNameMatchesAscii(enc,
			     ptr + 2 * MIN_BYTES_PER_CHAR(enc),
			     "DOCTYPE"))
      break;
    state->handler = doctype0;
    return XML_ROLE_NONE;
  case XML_TOK_INSTANCE_START:
    state->handler = error;
    return XML_ROLE_INSTANCE_START;
  }
  return syntaxError(state);
}

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

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

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

static
int doctype1(PROLOG_STATE *state,
	     int tok,
	     const char *ptr,
	     const char *end,
	     const ENCODING *enc)
{
  switch (tok) {
  case XML_TOK_PROLOG_S:
    return XML_ROLE_NONE;
  case XML_TOK_OPEN_BRACKET:
    state->handler = internalSubset;
    return XML_ROLE_NONE;
  case XML_TOK_DECL_CLOSE:
    state->handler = prolog2;
    return XML_ROLE_DOCTYPE_CLOSE;
  case XML_TOK_NAME:
    if (XmlNameMatchesAscii(enc, ptr, "SYSTEM")) {
      state->handler = doctype3;
      return XML_ROLE_NONE;
    }
    if (XmlNameMatchesAscii(enc, ptr, "PUBLIC")) {
      state->handler = doctype2;
      return XML_ROLE_NONE;
    }
    break;
  }
  return syntaxError(state);
}

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

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

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

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

static
int internalSubset(PROLOG_STATE *state,
		   int tok,
		   const char *ptr,
		   const char *end,
		   const ENCODING *enc)
{
  switch (tok) {
  case XML_TOK_PROLOG_S:
    return XML_ROLE_NONE;
  case XML_TOK_DECL_OPEN:
    if (XmlNameMatchesAscii(enc,
			    ptr + 2 * MIN_BYTES_PER_CHAR(enc),
			    "ENTITY")) {
      state->handler = entity0;
      return XML_ROLE_NONE;
    }
    if (XmlNameMatchesAscii(enc,
			    ptr + 2 * MIN_BYTES_PER_CHAR(enc),
			    "ATTLIST")) {
      state->handler = attlist0;
      return XML_ROLE_NONE;
    }
    if (XmlNameMatchesAscii(enc,
			    ptr + 2 * MIN_BYTES_PER_CHAR(enc),
			    "ELEMENT")) {
      state->handler = element0;
      return XML_ROLE_NONE;
    }
    if (XmlNameMatchesAscii(enc,
			    ptr + 2 * MIN_BYTES_PER_CHAR(enc),
			    "NOTATION")) {
      state->handler = notation0;
      return XML_ROLE_NONE;
    }
    break;
  case XML_TOK_PI:
  case XML_TOK_COMMENT:
    return XML_ROLE_NONE;
  case XML_TOK_PARAM_ENTITY_REF:
    return XML_ROLE_PARAM_ENTITY_REF;
  case XML_TOK_CLOSE_BRACKET:
    state->handler = doctype5;
    return XML_ROLE_NONE;
  }
  return syntaxError(state);
}

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

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

static
int entity2(PROLOG_STATE *state,
	    int tok,
	    const char *ptr,
	    const char *end,
	    const ENCODING *enc)
{
  switch (tok) {
  case XML_TOK_PROLOG_S:
    return XML_ROLE_NONE;
  case XML_TOK_NAME:
    if (XmlNameMatchesAscii(enc, ptr, "SYSTEM")) {
      state->handler = entity4;
      return XML_ROLE_NONE;
    }
    if (XmlNameMatchesAscii(enc, ptr, "PUBLIC")) {
      state->handler = entity3;
      return XML_ROLE_NONE;
    }
    break;
  case XML_TOK_LITERAL:
    state->handler = declClose;
    return XML_ROLE_ENTITY_VALUE;
  }
  return syntaxError(state);
}

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


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

static
int entity5(PROLOG_STATE *state,
	    int tok,
	    const char *ptr,
	    const char *end,
	    const ENCODING *enc)
{
  switch (tok) {
  case XML_TOK_PROLOG_S:
    return XML_ROLE_NONE;
  case XML_TOK_DECL_CLOSE:
    state->handler = internalSubset;
    return XML_ROLE_NONE;
  case XML_TOK_NAME:
    if (XmlNameMatchesAscii(enc, ptr, "NDATA")) {
      state->handler = entity6;
      return XML_ROLE_NONE;
    }
    break;
  }
  return syntaxError(state);
}

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

static
int entity7(PROLOG_STATE *state,
	    int tok,
	    const char *ptr,
	    const char *end,
	    const ENCODING *enc)
{
  switch (tok) {
  case XML_TOK_PROLOG_S:
    return XML_ROLE_NONE;
  case XML_TOK_NAME:
    if (XmlNameMatchesAscii(enc, ptr, "SYSTEM")) {
      state->handler = entity9;
      return XML_ROLE_NONE;
    }
    if (XmlNameMatchesAscii(enc, ptr, "PUBLIC")) {
      state->handler = entity8;
      return XML_ROLE_NONE;
    }
    break;
  case XML_TOK_LITERAL:
    state->handler = declClose;
    return XML_ROLE_ENTITY_VALUE;
  }
  return syntaxError(state);
}

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

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

static
int 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_NONE;
  case XML_TOK_NAME:
    state->handler = notation1;
    return XML_ROLE_NOTATION_NAME;
  }
  return syntaxError(state);
}

static
int notation1(PROLOG_STATE *state,
	      int tok,
	      const char *ptr,
	      const char *end,
	      const ENCODING *enc)
{
  switch (tok) {
  case XML_TOK_PROLOG_S:
    return XML_ROLE_NONE;
  case XML_TOK_NAME:
    if (XmlNameMatchesAscii(enc, ptr, "SYSTEM")) {
      state->handler = notation3;
      return XML_ROLE_NONE;
    }
    if (XmlNameMatchesAscii(enc, ptr, "PUBLIC")) {
      state->handler = notation2;
      return XML_ROLE_NONE;
    }
    break;
  }
  return syntaxError(state);
}

static
int notation2(PROLOG_STATE *state,
	      int tok,
	      const char *ptr,