Annotation of libwww/Library/src/HTAncMan.html, revision 2.15
2.1 frystyk 1: <HTML>
2: <HEAD>
2.12 frystyk 3: <TITLE>W3C Sample Code Library libwww Anchor Object</TITLE>
2.9 frystyk 4: <!-- Changed by: Henrik Frystyk Nielsen, 16-Jul-1996 -->
2.1 frystyk 5: </HEAD>
6: <BODY>
7:
2.7 frystyk 8: <H1>The Anchor Class Definition</H1>
2.1 frystyk 9:
10: <PRE>
11: /*
12: ** (c) COPYRIGHT MIT 1995.
13: ** Please first read the full copyright statement in the file COPYRIGH.
14: */
15: </PRE>
16:
17: This module is the private part of the anchor object. It has the
18: functions declarations that are private to the Library and that
19: shouldn't be used by applications. See also the public part of the
20: declarition in the <A HREF="HTAnchor.html">HTAnchorModule</A>.<P>
21:
22: <PRE>
23: #ifndef HTANCMAN_H
24: #define HTANCMAN_H
25:
26: #include "HTAnchor.h"
27: #include "HTList.h"
28: #include "HTAtom.h"
29: #include "HTMethod.h"
2.15 ! vbancrof 30:
! 31: #ifdef __cplusplus
! 32: extern "C" {
! 33: #endif
! 34:
2.1 frystyk 35: </PRE>
36:
37: We have a set of Anchor objects which of course should be sub classes
38: - but - hey - this is C - what do you expect!
39:
40: <A NAME="Generic"><H3>Generic Anchor type</H3></A>
41:
42: This is the super class of anchors. We often use this as an argument
43: to the functions that both accept parent anchors and child anchors. We
44: separate the first link from the others to avoid too many small
45: mallocs involved by a list creation. Most anchors only point to one
46: place.
47:
48: <PRE>
49: struct _HTAnchor {
50: HTLink mainLink; /* Main (or default) destination of this */
51: HTList * links; /* List of extra links from this, if any */
52: HTParentAnchor * parent; /* Parent of this anchor (self for adults) */
53: };
54: </PRE>
55:
56: <A NAME="parent"><H3>Anchor for a Parent Object</H3></A>
57:
58: These anchors points to the whole contents of a graphic object
59: (document). The parent anchor of a parent anchor is itself. The parent
60: anchor now contains all meta information about the object. This is
61: largely the entity headers in the HTTP specification.
62:
63: <PRE>
64: struct _HTParentAnchor {
65: /* Common part from the generic anchor structure */
66: HTLink mainLink; /* Main (or default) destination of this */
67: HTList * links; /* List of extra links from this, if any */
68: HTParentAnchor * parent; /* Parent of this anchor (self) */
69:
70: /* ParentAnchor-specific information */
2.9 frystyk 71: HTList ** children; /* Hash of subanchors of this, if any */
2.1 frystyk 72: HTList * sources; /* List of anchors pointing to this, if any */
73: void * document; /* The document within this is an anchor */
74: char * physical; /* Physical address */
75: char * address; /* Absolute address of this node */
76: BOOL isIndex; /* Acceptance of a keyword search */
77:
2.11 frystyk 78: HTAssocList * headers; /* Unparsed headers */
2.1 frystyk 79: BOOL header_parsed; /* Are we done parsing? */
80:
2.7 frystyk 81: /* We keep a list of variants of this anchor, if any */
82: HTList * variants;
83:
2.6 frystyk 84: /* Entity header fields */
2.1 frystyk 85: char * title;
2.11 frystyk 86: HTMethod allow; /* Allowed methods (bit-flag) */
2.1 frystyk 87:
2.7 frystyk 88: HTFormat content_type; /* Content type */
89: HTAssocList * type_parameters;/* Content type parameters (charset etc.) */
90:
2.13 frystyk 91: HTAssocList * meta_tags; /* Set of metatags found in the HTML text */
92:
2.6 frystyk 93: char * content_base;
2.4 frystyk 94: HTList * content_encoding;
95: HTList * content_language;
2.6 frystyk 96: long int content_length;
97: char * content_location;
2.7 frystyk 98: char * content_md5;
2.4 frystyk 99:
2.14 frystyk 100: HTEncoding cte; /* Content-Transfer-Encoding */
2.1 frystyk 101:
102: time_t date; /* When was the request issued */
103: time_t expires; /* When does the copy expire */
2.7 frystyk 104: time_t last_modified; /* When was this last modified */
2.10 frystyk 105: time_t age; /* Cache estimate of age */
2.7 frystyk 106: char * etag; /* entity tag */
2.1 frystyk 107:
108: char * derived_from; /* Opaque string */
109: char * version; /* Opaque string */
110: };
111: </PRE>
112:
113: <A NAME="child"><H3>Anchor for a Child Object</H3></A>
114:
115: A child anchor is a anchor object that points to a subpart of a
116: graphic object (document)
117:
118: <PRE>
119: struct _HTChildAnchor {
120: /* Common part from the generic anchor structure */
121: HTLink mainLink; /* Main (or default) destination of this */
122: HTList * links; /* List of extra links from this, if any */
123: HTParentAnchor * parent; /* Parent of this anchor */
124:
125: /* ChildAnchor-specific information */
126: char * tag; /* Address of this anchor relative to parent */
127: };
128: </PRE>
129:
130: <PRE>
2.15 ! vbancrof 131: #ifdef __cplusplus
! 132: }
! 133: #endif
! 134:
2.1 frystyk 135: #endif /* HTANCMAN_H */
136: </PRE>
2.4 frystyk 137:
138: <HR>
139: <ADDRESS>
2.15 ! vbancrof 140: @(#) $Id: HTAncMan.html,v 2.14 1998/03/05 21:56:09 frystyk Exp $
2.4 frystyk 141: </ADDRESS>
2.1 frystyk 142: </BODY>
143: </HTML>
2.7 frystyk 144:
145:
146:
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