File: xlink.h

package info (click to toggle)
libxml 1:1.8.17-14
  • links: PTS
  • area: main
  • in suites: etch-m68k
  • size: 7,448 kB
  • ctags: 2,065
  • sloc: ansic: 34,627; xml: 10,690; sh: 8,593; makefile: 374
file content (182 lines) | stat: -rw-r--r-- 4,937 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
/*
 * xlink.h : interfaces to the hyperlinks detection module
 *
 * See Copyright for the status of this software.
 *
 * Related specification: http://www.w3.org/TR/xlink
 *                        http://www.w3.org/HTML/
 *     and XBase 
 *
 * Daniel.Veillard@w3.org
 */

#ifndef __XML_XLINK_H__
#define __XML_XLINK_H__

#include "tree.h"

#ifdef __cplusplus
#define extern "C" {
#endif
/**
 * Various defines for the various Link properties.
 *
 * NOTE: the link detection layer will try to resolve QName expansion
 *       of namespaces, if "foo" is the prefix for "http://foo.com/"
 *       then the link detection layer will expand role="foo:myrole"
 *       to "http://foo.com/:myrole"
 * NOTE: the link detection layer will expand URI-Refences found on
 *       href attributes by using the base mechanism if found.
 */
typedef xmlChar *xlinkHRef;
typedef xmlChar *xlinkRole;
typedef xmlChar *xlinkTitle;

typedef enum {
    XLINK_TYPE_NONE = 0,
    XLINK_TYPE_SIMPLE,
    XLINK_TYPE_EXTENDED,
    XLINK_TYPE_EXTENDED_SET
} xlinkType;

typedef enum {
    XLINK_SHOW_NONE = 0,
    XLINK_SHOW_NEW,
    XLINK_SHOW_EMBED,
    XLINK_SHOW_REPLACE
} xlinkShow;

typedef enum {
    XLINK_ACTUATE_NONE = 0,
    XLINK_ACTUATE_AUTO,
    XLINK_ACTUATE_ONREQUEST
} xlinkActuate;

/**
 * xlinkNodeDetectFunc:
 * @ctx:  user data pointer
 * @node:  the node to check
 * 
 * This is the prototype for the link detection routine
 * It calls the default link detection callbacks upon link detection.
 */
typedef void
(*xlinkNodeDetectFunc)	(void *ctx,
		 	 xmlNodePtr node);

/**
 * The link detection module interract with the upper layers using
 * a set of callback registered at parsing time.
 */

/**
 * xlinkSimpleLinkFunk:
 * @ctx:  user data pointer
 * @node:  the node carrying the link
 * @href:  the target of the link
 * @role:  the role string
 * @title:  the link title
 *
 * This is the prototype for a simple link detection callback.
 */
typedef void
(*xlinkSimpleLinkFunk)	(void *ctx,
			 xmlNodePtr node,
			 const xlinkHRef href,
			 const xlinkRole role,
			 const xlinkTitle title);

/**
 * xlinkExtendedLinkFunk:
 * @ctx:  user data pointer
 * @node:  the node carrying the link
 * @nbLocators: the number of locators detected on the link
 * @hrefs:  pointer to the array of locator hrefs
 * @roles:  pointer to the array of locator roles
 * @nbArcs: the number of arcs detected on the link
 * @from:  pointer to the array of source roles found on the arcs
 * @to:  pointer to the array of target roles found on the arcs
 * @show:  array of values for the show attributes found on the arcs
 * @actuate:  array of values for the actuate attributes found on the arcs
 * @nbTitles: the number of titles detected on the link
 * @title:  array of titles detected on the link
 * @langs:  array of xml:lang values for the titles
 *
 * This is the prototype for a extended link detection callback.
 */
typedef void
(*xlinkExtendedLinkFunk)(void *ctx,
			 xmlNodePtr node,
			 int nbLocators,
			 const xlinkHRef *hrefs,
			 const xlinkRole *roles,
			 int nbArcs,
			 const xlinkRole *from,
			 const xlinkRole *to,
			 xlinkShow *show,
			 xlinkActuate *actuate,
			 int nbTitles,
			 const xlinkTitle *titles,
			 const xmlChar **langs);

/**
 * xlinkExtendedLinkSetFunk:
 * @ctx:  user data pointer
 * @node:  the node carrying the link
 * @nbLocators: the number of locators detected on the link
 * @hrefs:  pointer to the array of locator hrefs
 * @roles:  pointer to the array of locator roles
 * @nbTitles: the number of titles detected on the link
 * @title:  array of titles detected on the link
 * @langs:  array of xml:lang values for the titles
 *
 * This is the prototype for a extended link set detection callback.
 */
typedef void
(*xlinkExtendedLinkSetFunk)	(void *ctx,
				 xmlNodePtr node,
				 int nbLocators,
				 const xlinkHRef *hrefs,
				 const xlinkRole *roles,
				 int nbTitles,
				 const xlinkTitle *titles,
				 const xmlChar **langs);

/**
 * This is the structure containing a set of Links detection callbacks
 *
 * There is no default xlink callbacks, if one want to get link
 * recognition activated, those call backs must be provided before parsing.
 */
typedef struct _xlinkHandler xlinkHandler;
typedef xlinkHandler *xlinkHandlerPtr;
struct _xlinkHandler {
    xlinkSimpleLinkFunk simple;
    xlinkExtendedLinkFunk extended;
    xlinkExtendedLinkSetFunk set;
};

/**
 * the default detection routine, can be overriden, they call the default
 * detection callbacks. 
 */

xlinkNodeDetectFunc	xlinkGetDefaultDetect	(void);
void			xlinkSetDefaultDetect	(xlinkNodeDetectFunc func);

/**
 * Routines to set/get the default handlers.
 */
xlinkHandlerPtr	xlinkGetDefaultHandler	(void);
void		xlinkSetDefaultHandler	(xlinkHandlerPtr handler);

/*
 * Link detection module itself.
 */
xlinkType	 xlinkIsLink		(xmlDocPtr doc,
					 xmlNodePtr node);

#ifdef __cplusplus
}
#endif
#endif /* __XML_XLINK_H__ */