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1 /*
2  * Summary: interface for the XML entities handling
3  * Description: this module provides some of the entity API needed
4  *              for the parser and applications.
5  *
6  * Copy: See Copyright for the status of this software.
7  *
8  * Author: Daniel Veillard
9  */
10 
11 #ifndef __XML_ENTITIES_H__
12 #define __XML_ENTITIES_H__
13 
14 #include <libxml/xmlversion.h>
15 #include <libxml/tree.h>
16 
17 #ifdef __cplusplus
18 extern "C" {
19 #endif
20 
21 /*
22  * The different valid entity types.
23  */
24 typedef enum {
25     XML_INTERNAL_GENERAL_ENTITY = 1,
26     XML_EXTERNAL_GENERAL_PARSED_ENTITY = 2,
27     XML_EXTERNAL_GENERAL_UNPARSED_ENTITY = 3,
28     XML_INTERNAL_PARAMETER_ENTITY = 4,
29     XML_EXTERNAL_PARAMETER_ENTITY = 5,
30     XML_INTERNAL_PREDEFINED_ENTITY = 6
31 } xmlEntityType;
32 
33 /*
34  * An unit of storage for an entity, contains the string, the value
35  * and the linkind data needed for the linking in the hash table.
36  */
37 
38 struct _xmlEntity {
39     void           *_private;	        /* application data */
40     xmlElementType          type;       /* XML_ENTITY_DECL, must be second ! */
41     const xmlChar          *name;	/* Entity name */
42     struct _xmlNode    *children;	/* First child link */
43     struct _xmlNode        *last;	/* Last child link */
44     struct _xmlDtd       *parent;	/* -> DTD */
45     struct _xmlNode        *next;	/* next sibling link  */
46     struct _xmlNode        *prev;	/* previous sibling link  */
47     struct _xmlDoc          *doc;       /* the containing document */
48 
49     xmlChar                *orig;	/* content without ref substitution */
50     xmlChar             *content;	/* content or ndata if unparsed */
51     int                   length;	/* the content length */
52     xmlEntityType          etype;	/* The entity type */
53     const xmlChar    *ExternalID;	/* External identifier for PUBLIC */
54     const xmlChar      *SystemID;	/* URI for a SYSTEM or PUBLIC Entity */
55 
56     struct _xmlEntity     *nexte;	/* unused */
57     const xmlChar           *URI;	/* the full URI as computed */
58     int                    owner;	/* does the entity own the childrens */
59     int			 checked;	/* was the entity content checked */
60 					/* this is also used to count entites
61 					 * references done from that entity */
62 };
63 
64 /*
65  * All entities are stored in an hash table.
66  * There is 2 separate hash tables for global and parameter entities.
67  */
68 
69 typedef struct _xmlHashTable xmlEntitiesTable;
70 typedef xmlEntitiesTable *xmlEntitiesTablePtr;
71 
72 /*
73  * External functions:
74  */
75 
76 #ifdef LIBXML_LEGACY_ENABLED
77 XMLPUBFUN void XMLCALL
78 		xmlInitializePredefinedEntities	(void);
79 #endif /* LIBXML_LEGACY_ENABLED */
80 
81 XMLPUBFUN xmlEntityPtr XMLCALL
82 			xmlNewEntity		(xmlDocPtr doc,
83 						 const xmlChar *name,
84 						 int type,
85 						 const xmlChar *ExternalID,
86 						 const xmlChar *SystemID,
87 						 const xmlChar *content);
88 XMLPUBFUN xmlEntityPtr XMLCALL
89 			xmlAddDocEntity		(xmlDocPtr doc,
90 						 const xmlChar *name,
91 						 int type,
92 						 const xmlChar *ExternalID,
93 						 const xmlChar *SystemID,
94 						 const xmlChar *content);
95 XMLPUBFUN xmlEntityPtr XMLCALL
96 			xmlAddDtdEntity		(xmlDocPtr doc,
97 						 const xmlChar *name,
98 						 int type,
99 						 const xmlChar *ExternalID,
100 						 const xmlChar *SystemID,
101 						 const xmlChar *content);
102 XMLPUBFUN xmlEntityPtr XMLCALL
103 			xmlGetPredefinedEntity	(const xmlChar *name);
104 XMLPUBFUN xmlEntityPtr XMLCALL
105 			xmlGetDocEntity		(xmlDocPtr doc,
106 						 const xmlChar *name);
107 XMLPUBFUN xmlEntityPtr XMLCALL
108 			xmlGetDtdEntity		(xmlDocPtr doc,
109 						 const xmlChar *name);
110 XMLPUBFUN xmlEntityPtr XMLCALL
111 			xmlGetParameterEntity	(xmlDocPtr doc,
112 						 const xmlChar *name);
113 #ifdef LIBXML_LEGACY_ENABLED
114 XMLPUBFUN const xmlChar * XMLCALL
115 			xmlEncodeEntities	(xmlDocPtr doc,
116 						 const xmlChar *input);
117 #endif /* LIBXML_LEGACY_ENABLED */
118 XMLPUBFUN xmlChar * XMLCALL
119 			xmlEncodeEntitiesReentrant(xmlDocPtr doc,
120 						 const xmlChar *input);
121 XMLPUBFUN xmlChar * XMLCALL
122 			xmlEncodeSpecialChars	(xmlDocPtr doc,
123 						 const xmlChar *input);
124 XMLPUBFUN xmlEntitiesTablePtr XMLCALL
125 			xmlCreateEntitiesTable	(void);
126 #ifdef LIBXML_TREE_ENABLED
127 XMLPUBFUN xmlEntitiesTablePtr XMLCALL
128 			xmlCopyEntitiesTable	(xmlEntitiesTablePtr table);
129 #endif /* LIBXML_TREE_ENABLED */
130 XMLPUBFUN void XMLCALL
131 			xmlFreeEntitiesTable	(xmlEntitiesTablePtr table);
132 #ifdef LIBXML_OUTPUT_ENABLED
133 XMLPUBFUN void XMLCALL
134 			xmlDumpEntitiesTable	(xmlBufferPtr buf,
135 						 xmlEntitiesTablePtr table);
136 XMLPUBFUN void XMLCALL
137 			xmlDumpEntityDecl	(xmlBufferPtr buf,
138 						 xmlEntityPtr ent);
139 #endif /* LIBXML_OUTPUT_ENABLED */
140 #ifdef LIBXML_LEGACY_ENABLED
141 XMLPUBFUN void XMLCALL
142 			xmlCleanupPredefinedEntities(void);
143 #endif /* LIBXML_LEGACY_ENABLED */
144 
145 
146 #ifdef __cplusplus
147 }
148 #endif
149 
150 # endif /* __XML_ENTITIES_H__ */
151