entities.h

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/*
 * Summary: interface for the XML entities handling
 * Description: this module provides some of the entity API needed
 *              for the parser and applications.
 *
 * Copy: See Copyright for the status of this software.
 *
 * Author: Daniel Veillard
 */

#ifndef __XML_ENTITIES_H__
#define __XML_ENTITIES_H__

#include <libxml/xmlversion.h>
#include <libxml/tree.h>

#ifdef __cplusplus
extern "C" {
#endif

/*
 * The different valid entity types.
 */
typedef enum {
    XML_INTERNAL_GENERAL_ENTITY = 1,
    XML_EXTERNAL_GENERAL_PARSED_ENTITY = 2,
    XML_EXTERNAL_GENERAL_UNPARSED_ENTITY = 3,
    XML_INTERNAL_PARAMETER_ENTITY = 4,
    XML_EXTERNAL_PARAMETER_ENTITY = 5,
    XML_INTERNAL_PREDEFINED_ENTITY = 6
} xmlEntityType;

/*
 * An unit of storage for an entity, contains the string, the value
 * and the linkind data needed for the linking in the hash table.
 */

struct _xmlEntity {
    void           *_private;           /* application data */
    xmlElementType          type;       /* XML_ENTITY_DECL, must be second ! */
    const xmlChar          *name;   /* Entity name */
    struct _xmlNode    *children;   /* First child link */
    struct _xmlNode        *last;   /* Last child link */
    struct _xmlDtd       *parent;   /* -> DTD */
    struct _xmlNode        *next;   /* next sibling link  */
    struct _xmlNode        *prev;   /* previous sibling link  */
    struct _xmlDoc          *doc;       /* the containing document */

    xmlChar                *orig;   /* content without ref substitution */
    xmlChar             *content;   /* content or ndata if unparsed */
    int                   length;   /* the content length */
    xmlEntityType          etype;   /* The entity type */
    const xmlChar    *ExternalID;   /* External identifier for PUBLIC */
    const xmlChar      *SystemID;   /* URI for a SYSTEM or PUBLIC Entity */

    struct _xmlEntity     *nexte;   /* unused */
    const xmlChar           *URI;   /* the full URI as computed */
    int                    owner;   /* does the entity own the childrens */
    int          checked;   /* was the entity content checked */
                    /* this is also used to count entities
                     * references done from that entity
                     * and if it contains '<' */
};

/*
 * All entities are stored in an hash table.
 * There is 2 separate hash tables for global and parameter entities.
 */

typedef struct _xmlHashTable xmlEntitiesTable;
typedef xmlEntitiesTable *xmlEntitiesTablePtr;

/*
 * External functions:
 */

#ifdef LIBXML_LEGACY_ENABLED
XMLPUBFUN void XMLCALL
        xmlInitializePredefinedEntities (void);
#endif /* LIBXML_LEGACY_ENABLED */

XMLPUBFUN xmlEntityPtr XMLCALL
            xmlNewEntity        (xmlDocPtr doc,
                         const xmlChar *name,
                         int type,
                         const xmlChar *ExternalID,
                         const xmlChar *SystemID,
                         const xmlChar *content);
XMLPUBFUN xmlEntityPtr XMLCALL
            xmlAddDocEntity     (xmlDocPtr doc,
                         const xmlChar *name,
                         int type,
                         const xmlChar *ExternalID,
                         const xmlChar *SystemID,
                         const xmlChar *content);
XMLPUBFUN xmlEntityPtr XMLCALL
            xmlAddDtdEntity     (xmlDocPtr doc,
                         const xmlChar *name,
                         int type,
                         const xmlChar *ExternalID,
                         const xmlChar *SystemID,
                         const xmlChar *content);
XMLPUBFUN xmlEntityPtr XMLCALL
            xmlGetPredefinedEntity  (const xmlChar *name);
XMLPUBFUN xmlEntityPtr XMLCALL
            xmlGetDocEntity     (const xmlDoc *doc,
                         const xmlChar *name);
XMLPUBFUN xmlEntityPtr XMLCALL
            xmlGetDtdEntity     (xmlDocPtr doc,
                         const xmlChar *name);
XMLPUBFUN xmlEntityPtr XMLCALL
            xmlGetParameterEntity   (xmlDocPtr doc,
                         const xmlChar *name);
#ifdef LIBXML_LEGACY_ENABLED
XMLPUBFUN const xmlChar * XMLCALL
            xmlEncodeEntities   (xmlDocPtr doc,
                         const xmlChar *input);
#endif /* LIBXML_LEGACY_ENABLED */
XMLPUBFUN xmlChar * XMLCALL
            xmlEncodeEntitiesReentrant(xmlDocPtr doc,
                         const xmlChar *input);
XMLPUBFUN xmlChar * XMLCALL
            xmlEncodeSpecialChars   (const xmlDoc *doc,
                         const xmlChar *input);
XMLPUBFUN xmlEntitiesTablePtr XMLCALL
            xmlCreateEntitiesTable  (void);
#ifdef LIBXML_TREE_ENABLED
XMLPUBFUN xmlEntitiesTablePtr XMLCALL
            xmlCopyEntitiesTable    (xmlEntitiesTablePtr table);
#endif /* LIBXML_TREE_ENABLED */
XMLPUBFUN void XMLCALL
            xmlFreeEntitiesTable    (xmlEntitiesTablePtr table);
#ifdef LIBXML_OUTPUT_ENABLED
XMLPUBFUN void XMLCALL
            xmlDumpEntitiesTable    (xmlBufferPtr buf,
                         xmlEntitiesTablePtr table);
XMLPUBFUN void XMLCALL
            xmlDumpEntityDecl   (xmlBufferPtr buf,
                         xmlEntityPtr ent);
#endif /* LIBXML_OUTPUT_ENABLED */
#ifdef LIBXML_LEGACY_ENABLED
XMLPUBFUN void XMLCALL
            xmlCleanupPredefinedEntities(void);
#endif /* LIBXML_LEGACY_ENABLED */


#ifdef __cplusplus
}
#endif

# endif /* __XML_ENTITIES_H__ */