482 lines
14 KiB
C
482 lines
14 KiB
C
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/* $Id$
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Part of SWI-Prolog
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Author: Jan Wielemaker
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E-mail: jan@swi.psy.uva.nl
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WWW: http://www.swi-prolog.org
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Copyright (C): 1985-2002, University of Amsterdam
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef DTD_H_INCLUDED
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#define DTD_H_INCLUDED
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#include "sgmldefs.h"
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#define CH_WHITE 0x0001
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#define CH_LCLETTER 0x0002
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#define CH_UCLETTER 0x0004
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#define CH_CNMSTRT 0x0008 /* may start a name */
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#define CH_CNM 0x0010 /* may be in a name */
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#define CH_DIGIT 0x0020
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#define CH_RE 0x0040
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#define CH_RS 0x0080
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#define CH_LETTER (CH_LCLETTER|CH_UCLETTER)
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#define CH_NMSTART (CH_LCLETTER|CH_UCLETTER|CH_CNMSTRT)
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#define CH_NAME (CH_NMSTART|CH_DIGIT|CH_CNM)
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#define CH_BLANK (CH_WHITE|CH_RE|CH_RS)
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#define CHR_BLANK 0x1 /* SHORTREF 'B' */
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#define CHR_DBLANK 0x2 /* SHORTREF 'BB' */
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#define SGML_DTD_MAGIC 0x7364573
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typedef enum
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{ CF_STAGO = 0, /* < */
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CF_STAGC, /* > */
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CF_ETAGO1, /* < */
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CF_ETAGO2, /* / */
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CF_VI, /* = */
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CF_NS, /* : (XMLNS) */
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CF_LIT, /* " */
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CF_LITA, /* ' */
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CF_PERO, /* % */
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CF_ERO, /* & */
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CF_ERC, /* ; */
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CF_MDO1, /* < */
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CF_MDO2, /* ! (MDO=<!) */
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CF_MDC, /* > */
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CF_PRO1, /* < */
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CF_PRO2, /* ? (PRO=<?) */
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CF_PRC, /* > */
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CF_GRPO, /* ( */
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CF_GRPC, /* ) */
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CF_SEQ, /* , */
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CF_AND, /* & */
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CF_OR, /* | */
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CF_OPT, /* ? */
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CF_PLUS, /* + */
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CF_DSO, /* [ */
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CF_DSC, /* ] */
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CF_REP, /* * */
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CF_RS, /* \n */
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CF_RE, /* \r */
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CF_CMT, /* - */
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CF_NG, /* , or & or | */
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CF_ENDTABLE /* to find size */
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} charfunc; /* function of characters */
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typedef enum
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{ SGML_ENC_ISO_LATIN1 = 0, /* ISO Latin-1 */
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SGML_ENC_UTF8 /* Multi-byte UTF-8 encoding */
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} dtd_char_encoding;
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typedef enum
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{ C_CDATA, /* pure cdata */
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C_PCDATA, /* parsed character data */
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C_RCDATA, /* pure cdata + entities */
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C_EMPTY, /* empy element */
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C_ANY /* element may contain anything */
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} contenttype;
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typedef enum
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{ MC_ONE, /* one time */
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MC_OPT, /* optional element (?) */
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MC_REP, /* any times (*) */
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MC_PLUS /* one-or-more (+) */
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} modelcard;
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typedef enum
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{ MT_UNDEF = 0, /* undefined */
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MT_PCDATA, /* Contains PCDATA */
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MT_ELEMENT, /* refers to element */
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MT_SEQ, /* Sequence (,) */
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MT_AND, /* Ony order (&) */
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MT_OR /* Disjunction (|) */
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} modeltype;
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typedef enum
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{ AT_CDATA, /* CDATA attribute */
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AT_ENTITY, /* entity-name */
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AT_ENTITIES, /* entity-name list */
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AT_ID, /* identifier */
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AT_IDREF, /* identifier reference */
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AT_IDREFS, /* list of identifier references */
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AT_NAME, /* name token */
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AT_NAMES, /* list of names */
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AT_NAMEOF, /* one of these names */
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AT_NMTOKEN, /* name-token */
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AT_NMTOKENS, /* name-token list */
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AT_NOTATION, /* notation-name */
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AT_NUMBER, /* number */
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AT_NUMBERS, /* number list */
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AT_NUTOKEN, /* number token */
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AT_NUTOKENS /* number token list */
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} attrtype;
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typedef enum
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{ AT_FIXED, /* fixed value */
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AT_REQUIRED, /* Required attribute */
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AT_CURRENT, /* most recent value */
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AT_CONREF, /* cross-reference */
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AT_IMPLIED, /* Implied attribute */
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AT_DEFAULT /* has default */
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} attrdef;
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typedef enum
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{ ET_SYSTEM, /* System (file) entity */
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ET_PUBLIC, /* Public (external) entity */
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ET_LITERAL /* Literal text */
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} entity_type;
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typedef enum
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{ EC_SGML, /* SGML data */
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EC_STARTTAG, /* SGML start-tag */
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EC_ENDTAG, /* SGML end-tag */
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EC_CDATA, /* CDATA entity */
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EC_SDATA, /* SDATA entity */
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EC_NDATA, /* non-sgml data */
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EC_PI /* Programming instruction */
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} data_type;
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typedef enum
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{ DL_SGML, /* Use SGML */
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DL_XML, /* Use XML */
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DL_XMLNS /* Use XML + Namespaces */
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} dtd_dialect;
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typedef enum
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{ OPT_SHORTTAG /* do/don't accept shorttag */
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} dtd_option;
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typedef enum
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{ SP_PRESERVE = 0, /* Preserve all white-space */
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SP_DEFAULT, /* Default space handling */
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SP_REMOVE, /* Remove all blank CDATA elements */
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SP_SGML, /* Compliant SGML mode */
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SP_INHERIT /* DTD: inherit from environment */
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} dtd_space_mode;
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typedef enum
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{ NU_TOKEN, /* Treat numbers as tokens */
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NU_INTEGER /* Convert to integer */
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} dtd_number_mode;
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/*******************************
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* ERRORS *
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*******************************/
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#ifdef DTD_IMPLEMENTATION
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#define DTD_MINOR_ERRORS 1
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#endif
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typedef enum
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{ ERS_WARNING, /* probably correct result */
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ERS_ERROR, /* probably incrorrect result */
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ERS_STYLE /* dubious/bad style; correct result */
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} dtd_error_severity;
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typedef enum
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{ ERC_REPRESENTATION, /* Internal limit */
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/* id */
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ERC_RESOURCE, /* external limit */
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/* id */
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ERC_LIMIT, /* Exceeded SGML limit */
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/* id */
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ERC_VALIDATE, /* DTD Validation */
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/* Message */
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ERC_SYNTAX_ERROR, /* Syntax error */
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/* Message, found */
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ERC_EXISTENCE, /* Existence error */
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/* Type, name */
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ERC_REDEFINED /* Redefined object */
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/* Type, name */
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#ifdef DTD_MINOR_ERRORS
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, /* reopen list */
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ERC_SYNTAX_WARNING, /* Syntax warning (i.e. fixed) */
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/* Message, found */
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ERC_DOMAIN, /* Relative to declared type */
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/* Type, found */
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ERC_OMITTED_CLOSE,
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/* Element */
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ERC_OMITTED_OPEN,
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/* Element */
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ERC_NOT_OPEN,
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/* Element */
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ERC_NOT_ALLOWED,
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/* Element */
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ERC_NOT_ALLOWED_PCDATA,
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/* Text */
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ERC_NO_ATTRIBUTE,
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/* Element, Attribute */
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ERC_NO_ATTRIBUTE_VALUE,
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/* Element, Value */
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ERC_NO_VALUE,
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/* Entity */
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ERC_NO_DOCTYPE,
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/* Implicit, file */
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ERC_NO_CATALOGUE
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/* file */
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#endif
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} dtd_error_id;
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typedef enum
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{ IN_NONE, /* unspecified input */
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IN_FILE, /* input from file */
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IN_ENTITY /* input from entity */
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} input_type;
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typedef struct _dtd_srcloc
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{ input_type type; /* type of input */
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union
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{ const ichar *file; /* name of the file */
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const ichar *entity; /* name of entity */
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} name;
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int line; /* 1-based Line no */
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int linepos; /* 1-based char */
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long charpos; /* 0-based file char */
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struct _dtd_srcloc *parent; /* parent location */
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} dtd_srcloc;
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typedef struct _dtd_error
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{ dtd_error_id id; /* ERC_* identifier */
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dtd_error_id minor; /* Minor code */
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dtd_error_severity severity; /* ERS_* severity */
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dtd_srcloc *location; /* location of the error */
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wchar_t *plain_message; /* Clean message */
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wchar_t *message; /* complete message */
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/* (Warning: file:line: <plain>) */
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wchar_t *argv[2]; /* context arguments */
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} dtd_error;
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/*******************************
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* DTD TYPES *
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*******************************/
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typedef struct _dtd_symbol
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{ const ichar *name; /* name of the atom */
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struct _dtd_symbol *next; /* next in atom list */
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struct _dtd_element *element; /* connected element (if any) */
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struct _dtd_entity *entity; /* connected entity (if any) */
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} dtd_symbol;
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typedef struct _dtd_symbol_table
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{ int size; /* Allocated size */
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dtd_symbol **entries; /* Entries */
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} dtd_symbol_table;
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typedef struct _dtd_entity
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{ dtd_symbol *name; /* its name */
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entity_type type; /* ET_* */
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data_type content; /* EC_* */
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int catalog_location; /* what catalog to use for lookup */
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int length; /* size of literal value */
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ichar *value; /* literal value */
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ichar *extid; /* external identifier */
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ichar *exturl; /* url to fetch from */
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ichar *baseurl; /* base url for exturl */
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struct _dtd_entity *next; /* list-link */
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} dtd_entity;
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typedef struct _dtd_notation
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{ dtd_symbol *name; /* name of the notation */
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entity_type type; /* ET_{PUBLIC|SYSTEM} */
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ichar *public; /* public id */
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ichar *system; /* file with info */
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struct _dtd_notation *next; /* list-link */
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} dtd_notation;
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typedef struct _dtd_element_list
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{ struct _dtd_element *value; /* element */
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struct _dtd_element_list *next; /* next in list */
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} dtd_element_list;
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typedef struct _dtd_name_list
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{ dtd_symbol *value;
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struct _dtd_name_list *next;
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} dtd_name_list;
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typedef struct _dtd_attr
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{ dtd_symbol *name; /* name of attribute */
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attrtype type; /* type (AT_*) */
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attrdef def; /* AT_REQUIRED/AT_IMPLIED */
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int islist; /* attribute is a list */
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union
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{ dtd_name_list *nameof; /* (name1|name2|...) */
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} typeex;
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union
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{ ichar *cdata; /* default for CDATA */
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ichar *list; /* text for list-data */
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dtd_symbol *name; /* AT_NAME or AT_NAMEOF */
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long number; /* AT_NUMBER */
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} att_def;
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int references; /* reference count */
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} dtd_attr;
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typedef struct _dtd_attr_list
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{ dtd_attr *attribute;
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struct _dtd_attr_list *next;
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} dtd_attr_list;
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typedef struct _dtd_model
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{ modeltype type; /* MT_* */
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modelcard cardinality; /* MC_* */
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union
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{ struct _dtd_model *group; /* ,/|/& group */
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struct _dtd_element *element; /* element */
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} content;
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struct _dtd_model *next; /* next in list (for groups) */
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} dtd_model;
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typedef struct _dtd_edef
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{ contenttype type; /* EMPTY, MIXED, ... */
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int omit_open; /* allow omitted open tag? */
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int omit_close; /* allow omitted close tag? */
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dtd_model *content; /* the content model */
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dtd_element_list *included; /* +(namegroup) */
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dtd_element_list *excluded; /* -(namegroup) */
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struct _dtd_state *initial_state; /* Initial state in state engine */
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struct _dtd_state *final_state; /* Final state in state engine */
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int references; /* #elements using this def */
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} dtd_edef;
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typedef struct _dtd_map
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{ ichar *from; /* mapped text */
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int len; /* length of mapped text */
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dtd_symbol *to; /* name of symbol mapped onto */
|
||
|
|
struct _dtd_map *next; /* next in shortref map */
|
||
|
|
} dtd_map;
|
||
|
|
|
||
|
|
|
||
|
|
typedef struct _dtd_shortref
|
||
|
|
{ dtd_symbol *name; /* name of SHORTREF map */
|
||
|
|
dtd_map *map; /* implemented map */
|
||
|
|
char ends[SHORTMAP_SIZE]; /* ending-characters in map */
|
||
|
|
int defined; /* has been defined */
|
||
|
|
struct _dtd_shortref *next; /* next declared shortref */
|
||
|
|
} dtd_shortref;
|
||
|
|
|
||
|
|
|
||
|
|
typedef struct _dtd_element
|
||
|
|
{ dtd_symbol *name; /* its name */
|
||
|
|
dtd_edef *structure; /* content structure of the element */
|
||
|
|
dtd_attr_list *attributes; /* defined attributes */
|
||
|
|
dtd_space_mode space_mode; /* How to handle white-space (SP_*) */
|
||
|
|
dtd_shortref *map; /* SHORTREF map */
|
||
|
|
int undefined; /* Only implicitely defined */
|
||
|
|
struct _dtd_element *next; /* in DTD'e element list */
|
||
|
|
} dtd_element;
|
||
|
|
|
||
|
|
|
||
|
|
typedef struct _dtd_charclass
|
||
|
|
{ unsigned char class[INPUT_CHARSET_SIZE]; /* ichar --> class-mask */
|
||
|
|
} dtd_charclass;
|
||
|
|
|
||
|
|
|
||
|
|
typedef struct _dtd_charfunc
|
||
|
|
{ ichar func[(int)CF_ENDTABLE]; /* CF_ --> ichar */
|
||
|
|
} dtd_charfunc;
|
||
|
|
|
||
|
|
|
||
|
|
typedef struct _dtd
|
||
|
|
{ int magic; /* SGML_DTD_MAGIC */
|
||
|
|
int implicit; /* There is no DTD */
|
||
|
|
dtd_dialect dialect; /* DL_* */
|
||
|
|
int case_sensitive; /* Tags are case-sensitive */
|
||
|
|
int ent_case_sensitive; /* Entities are case-sensitive */
|
||
|
|
ichar *doctype; /* defined document type */
|
||
|
|
dtd_symbol_table *symbols; /* symbol-table */
|
||
|
|
dtd_entity *pentities; /* defined parameter entities */
|
||
|
|
dtd_entity *entities; /* defined entities */
|
||
|
|
dtd_entity *default_entity; /* default-entity (if any) */
|
||
|
|
dtd_notation *notations; /* Declared notations */
|
||
|
|
dtd_shortref *shortrefs; /* SHORTREF declarations */
|
||
|
|
dtd_element *elements; /* defined elements */
|
||
|
|
dtd_charfunc *charfunc; /* CF_ --> ichar */
|
||
|
|
dtd_charclass *charclass; /* ichar -> CH_-mask */
|
||
|
|
dtd_char_encoding encoding; /* document encoding */
|
||
|
|
dtd_space_mode space_mode; /* Default for handling white-space */
|
||
|
|
dtd_number_mode number_mode; /* How to treat number attributes */
|
||
|
|
int shorttag; /* support SHORTTAG */
|
||
|
|
int references; /* destruction reference count */
|
||
|
|
} dtd;
|
||
|
|
|
||
|
|
extern dtd_charfunc *new_charfunc(void); /* default classification */
|
||
|
|
extern dtd_charclass *new_charclass(void); /* default classification */
|
||
|
|
|
||
|
|
extern dtd_symbol* dtd_find_symbol(dtd *dtd, const ichar *name);
|
||
|
|
extern dtd_symbol* dtd_add_symbol(dtd *dtd, const ichar *name);
|
||
|
|
|
||
|
|
|
||
|
|
/*******************************
|
||
|
|
* PUBLIC *
|
||
|
|
*******************************/
|
||
|
|
|
||
|
|
#include "parser.h"
|
||
|
|
|
||
|
|
dtd * file_to_dtd(const ichar *file, const ichar *doctype,
|
||
|
|
dtd_dialect dialect);
|
||
|
|
int sgml_process_file(dtd_parser *p,
|
||
|
|
const ichar *file, unsigned flags);
|
||
|
|
int sgml_process_stream(dtd_parser *p, FILE *in,
|
||
|
|
unsigned flags);
|
||
|
|
dtd_parser * new_dtd_parser(dtd *dtd);
|
||
|
|
void free_dtd_parser(dtd_parser *p);
|
||
|
|
|
||
|
|
void free_dtd(dtd *dtd);
|
||
|
|
int load_dtd_from_file(dtd_parser *p, const ichar *file);
|
||
|
|
dtd * new_dtd(const ichar *doctype);
|
||
|
|
int set_dialect_dtd(dtd *dtd, dtd_dialect dialect);
|
||
|
|
int set_option_dtd(dtd *dtd, dtd_option option, int set);
|
||
|
|
|
||
|
|
void putchar_dtd_parser(dtd_parser *p, int chr);
|
||
|
|
int begin_document_dtd_parser(dtd_parser *p);
|
||
|
|
int end_document_dtd_parser(dtd_parser *p);
|
||
|
|
void reset_document_dtd_parser(dtd_parser *p);
|
||
|
|
void set_file_dtd_parser(dtd_parser *p,
|
||
|
|
input_type in, const ichar *file);
|
||
|
|
void set_mode_dtd_parser(dtd_parser *p, data_mode mode);
|
||
|
|
void sgml_cplocation(dtd_srcloc *dst, dtd_srcloc *src);
|
||
|
|
int xml_set_encoding(dtd_parser *p, const char *enc);
|
||
|
|
|
||
|
|
#endif /*DTD_H_INCLUDED*/
|
||
|
|
|
||
|
|
|