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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:12:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:12:14 +0000
commit982972c2aada53f83389987317fb6cbee9ce5a91 (patch)
tree25420c3b905b2e00f02a895d877fd0669025ee35 /WWW/Library/Implementation/HTAnchor.h
parentInitial commit. (diff)
downloadlynx-982972c2aada53f83389987317fb6cbee9ce5a91.tar.xz
lynx-982972c2aada53f83389987317fb6cbee9ce5a91.zip
Adding upstream version 2.8.9rel.1.upstream/2.8.9rel.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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-rw-r--r--WWW/Library/Implementation/HTAnchor.h412
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diff --git a/WWW/Library/Implementation/HTAnchor.h b/WWW/Library/Implementation/HTAnchor.h
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+/*
+ * $LynxId: HTAnchor.h,v 1.40 2018/03/11 18:43:50 tom Exp $
+ *
+ * Hypertext "Anchor" Object HTAnchor.h
+ * ==========================
+ *
+ * An anchor represents a region of a hypertext document which is linked
+ * to another anchor in the same or a different document.
+ */
+
+#ifndef HTANCHOR_H
+#define HTANCHOR_H
+
+/* Version 0 (TBL) written in Objective-C for the NeXT browser */
+/* Version 1 of 24-Oct-1991 (JFG), written in C, browser-independent */
+
+#include <HTList.h>
+#include <HTBTree.h>
+#include <HTChunk.h>
+#include <HTAtom.h>
+#include <UCDefs.h>
+
+typedef struct _HyperDoc HyperDoc; /* Ready for forward references */
+typedef struct _HTAnchor HTAnchor;
+typedef struct _HTParentAnchor HTParentAnchor;
+typedef struct _HTParentAnchor0 HTParentAnchor0;
+
+#include <HTFormat.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ struct _HTAnchor {
+ /* Generic anchor */
+ HTParentAnchor0 *parent; /* Parent of this anchor (self for adults) */
+ };
+
+#define HASH_TYPE unsigned short
+
+ struct _HTParentAnchor0 { /* One for adult_table,
+ * generally not used outside HTAnchor.c */
+ /* Common part from the generic anchor structure */
+ HTParentAnchor0 *parent; /* (self) */
+
+ /* ParentAnchor0-specific information */
+ char *address; /* Absolute address of this node */
+ HTParentAnchor *info; /* additional info, allocated on demand */
+
+ HTBTree *children; /* Subanchors <a name="tag">, sorted by tag */
+ HTList sources; /* List of anchors pointing to this, if any */
+
+ HTList _add_adult; /* - just a memory for list entry:) */
+ HASH_TYPE adult_hash; /* adult list number */
+ BOOL underway; /* Document about to be attached to it */
+ };
+
+ /*
+ * Separated from the above to save memory: allocated on demand,
+ * it is nearly 1:1 to HText (well, sometimes without HText...),
+ * available for SGML, HTML, and HText stages.
+ * [being precise, we currently allocate it before HTLoadDocument(),
+ * in HTAnchor_findAddress() and HTAnchor_parent()].
+ */
+ struct _HTParentAnchor {
+ /* Common part from the generic anchor structure */
+ HTParentAnchor0 *parent; /* Parent of this anchor */
+
+ /* ParentAnchor-specific information */
+ HTList children_notag; /* Subanchors <a href=...>, tag is NULL */
+ HyperDoc *document; /* The document within which this is an anchor */
+
+ char *address; /* parent->address, a pointer */
+ bstring *post_data; /* Posting data */
+ char *post_content_type; /* Type of post data */
+ char *bookmark; /* Bookmark filename */
+ HTFormat format; /* Pointer to node format descriptor */
+ char *charset; /* Pointer to character set (kludge, for now */
+ BOOL isIndex; /* Acceptance of a keyword search */
+ char *isIndexAction; /* URL of isIndex server */
+ char *isIndexPrompt; /* Prompt for isIndex query */
+ char *title; /* Title of document */
+ char *owner; /* Owner of document */
+ char *RevTitle; /* TITLE in REV="made" or REV="owner" LINK */
+ char *citehost; /* Citehost from REL="citehost" LINK */
+#ifdef USE_COLOR_STYLE
+ char *style;
+#endif
+
+ HTList *methods; /* Methods available as HTAtoms */
+ void *protocol; /* Protocol object */
+ char *physical; /* Physical address */
+ BOOL isISMAPScript; /* Script for clickable image map */
+ BOOL isHEAD; /* Document is headers from a HEAD request */
+ BOOL safe; /* Safe */
+#ifdef USE_SOURCE_CACHE
+ char *source_cache_file;
+ HTChunk *source_cache_chunk;
+#endif
+ char *FileCache; /* Path to a disk-cached copy (see src/HTFWriter.c) */
+ char *SugFname; /* Suggested filename */
+ char *cache_control; /* Cache-Control */
+ BOOL no_cache; /* Cache-Control, Pragma or META "no-cache"? */
+ BOOL inHEAD; /* HTMIMEConvert is decoding server-headers */
+ BOOL inBASE; /* duplicated from HTStructured (HTML.c/h) */
+ HTChunk http_headers;
+ BOOL no_content_encoding; /* server did not use C-T? */
+ char *content_type_params; /* Content-Type (with parameters if any) */
+ char *content_type; /* Content-Type */
+ char *content_language; /* Content-Language */
+ char *content_encoding; /* Compression algorithm */
+ char *content_base; /* Content-Base */
+ char *content_disposition; /* Content-Disposition */
+ char *content_location; /* Content-Location */
+ char *content_md5; /* Content-MD5 */
+ char *message_id; /* Message-ID */
+ char *subject; /* Subject */
+ off_t header_length; /* length of headers */
+ off_t content_length; /* Content-Length */
+ off_t actual_length; /* actual length may differ */
+ char *date; /* Date */
+ char *expires; /* Expires */
+ char *last_modified; /* Last-Modified */
+ char *ETag; /* ETag (HTTP1.1 cache validator) */
+ char *server; /* Server */
+ UCAnchorInfo *UCStages; /* chartrans stages */
+ HTList *imaps; /* client side image maps */
+ };
+
+ typedef HTAtom HTLinkType;
+
+ typedef struct {
+ /* Common part from the generic anchor structure */
+ HTParentAnchor0 *parent; /* Parent of this anchor */
+
+ /* ChildAnchor-specific information */
+ char *tag; /* #fragment, relative to the parent */
+
+ HTAnchor *dest; /* The anchor to which this leads */
+ HTLinkType *type; /* Semantics of this link */
+
+ HTList _add_children_notag; /* - just a memory for list entry:) */
+ HTList _add_sources; /* - just a memory for list entry:) */
+ } HTChildAnchor;
+
+ /*
+ * DocAddress structure is used for loading an absolute anchor with all
+ * needed information including posting data and post content type.
+ */
+ typedef struct _DocAddress {
+ char *address;
+ bstring *post_data;
+ char *post_content_type;
+ char *bookmark;
+ BOOL isHEAD;
+ BOOL safe;
+ } DocAddress;
+
+ /* "internal" means "within the same document, with certainty". */
+ extern HTLinkType *HTInternalLink;
+
+ /* Create or find a child anchor with a possible link
+ * --------------------------------------------------
+ *
+ * Create new anchor with a given parent and possibly
+ * a name, and possibly a link to a _relatively_ named anchor.
+ * (Code originally in ParseHTML.h)
+ */
+ extern HTChildAnchor *HTAnchor_findChildAndLink(HTParentAnchor *parent, /* May not be 0 */
+ const char *tag, /* May be "" or 0 */
+ const char *href, /* May be "" or 0 */
+ HTLinkType *ltype); /* May be 0 */
+
+ /* Create new or find old parent anchor
+ * ------------------------------------
+ *
+ * This one is for a reference which is found in a document, and might
+ * not be already loaded.
+ * Note: You are not guaranteed a new anchor -- you might get an old one,
+ * like with fonts.
+ */
+ extern HTParentAnchor *HTAnchor_findAddress(const DocAddress *address);
+
+ /* Create new or find old named anchor - simple form
+ * -------------------------------------------------
+ *
+ * Like the previous one, but simpler to use for simple cases.
+ * No post data etc. can be supplied. - kw
+ */
+ extern HTParentAnchor *HTAnchor_findSimpleAddress(const char *url);
+
+ /* Delete an anchor and possibly related things (auto garbage collection)
+ * --------------------------------------------
+ *
+ * The anchor is only deleted if the corresponding document is not loaded.
+ * All outgoing links from children are deleted, and children are
+ * removed from the sources lists of their targets.
+ * We also try to delete the targets whose documents are not loaded.
+ * If this anchor's sources list is empty, we delete it and its children.
+ */
+ extern BOOL HTAnchor_delete(HTParentAnchor0 *me);
+
+ /*
+ * Unnamed children (children_notag) have no sense without HText -
+ * delete them and their links if we are about to free HText.
+ * Document currently exists. Called within HText_free().
+ */
+ extern void HTAnchor_delete_links(HTParentAnchor *me);
+
+#ifdef USE_SOURCE_CACHE
+ extern void HTAnchor_clearSourceCache(HTParentAnchor *me);
+#endif
+
+ /* Data access functions
+ * ---------------------
+ */
+ extern HTParentAnchor *HTAnchor_parent(HTAnchor * me);
+
+ extern void HTAnchor_setDocument(HTParentAnchor *me,
+ HyperDoc *doc);
+
+ extern HyperDoc *HTAnchor_document(HTParentAnchor *me);
+
+ /* Returns the full URI of the anchor, child or parent
+ * as a malloc'd string to be freed by the caller.
+ */
+ extern char *HTAnchor_address(HTAnchor * me);
+
+ extern char *HTAnchor_short_address(HTAnchor * me);
+
+ extern void HTAnchor_setFormat(HTParentAnchor *me,
+ HTFormat form);
+
+ extern HTFormat HTAnchor_format(HTParentAnchor *me);
+
+ extern void HTAnchor_setIndex(HTParentAnchor *me,
+ const char *address);
+
+ extern void HTAnchor_setPrompt(HTParentAnchor *me,
+ const char *prompt);
+
+ extern BOOL HTAnchor_isIndex(HTParentAnchor *me);
+
+ extern BOOL HTAnchor_isISMAPScript(HTAnchor * me);
+
+#if defined(USE_COLOR_STYLE)
+ extern const char *HTAnchor_style(HTParentAnchor *me);
+
+ extern void HTAnchor_setStyle(HTParentAnchor *me,
+ const char *style);
+#endif
+
+ /* Title handling.
+ */
+ extern const char *HTAnchor_title(HTParentAnchor *me);
+
+ extern void HTAnchor_setTitle(HTParentAnchor *me,
+ const char *title);
+
+ extern void HTAnchor_appendTitle(HTParentAnchor *me,
+ const char *title);
+
+ /* Bookmark handling.
+ */
+ extern const char *HTAnchor_bookmark(HTParentAnchor *me);
+
+ extern void HTAnchor_setBookmark(HTParentAnchor *me,
+ const char *bookmark);
+
+ /* Owner handling.
+ */
+ extern const char *HTAnchor_owner(HTParentAnchor *me);
+
+ extern void HTAnchor_setOwner(HTParentAnchor *me,
+ const char *owner);
+
+ /* TITLE handling in LINKs with REV="made" or REV="owner". - FM
+ */
+ extern const char *HTAnchor_RevTitle(HTParentAnchor *me);
+
+ extern void HTAnchor_setRevTitle(HTParentAnchor *me,
+ const char *title);
+
+ /* Citehost for bibp links from LINKs with REL="citehost". - RDC
+ */
+ extern const char *HTAnchor_citehost(HTParentAnchor *me);
+
+ extern void HTAnchor_setCitehost(HTParentAnchor *me,
+ const char *citehost);
+
+ /* Suggested filename handling. - FM
+ * (will be loaded if we had a Content-Disposition
+ * header or META element with filename=name.suffix)
+ */
+ extern const char *HTAnchor_SugFname(HTParentAnchor *me);
+
+ /* HTTP Headers.
+ */
+ extern const char *HTAnchor_http_headers(HTParentAnchor *me);
+
+ /* Content-Type handling (parameter list).
+ */
+ extern const char *HTAnchor_content_type_params(HTParentAnchor *me);
+
+ /* Content-Type handling. - FM
+ */
+ extern const char *HTAnchor_content_type(HTParentAnchor *me);
+
+ /* Content-Encoding handling. - FM
+ * (will be loaded if we had a Content-Encoding
+ * header.)
+ */
+ extern const char *HTAnchor_content_encoding(HTParentAnchor *me);
+
+ /* Last-Modified header handling. - FM
+ */
+ extern const char *HTAnchor_last_modified(HTParentAnchor *me);
+
+ /* Date header handling. - FM
+ */
+ extern const char *HTAnchor_date(HTParentAnchor *me);
+
+ /* Server header handling. - FM
+ */
+ extern const char *HTAnchor_server(HTParentAnchor *me);
+
+ /* Safe header handling. - FM
+ */
+ extern BOOL HTAnchor_safe(HTParentAnchor *me);
+
+ /* Content-Base header handling. - FM
+ */
+ extern const char *HTAnchor_content_base(HTParentAnchor *me);
+
+ /* Content-Location header handling. - FM
+ */
+ extern const char *HTAnchor_content_location(HTParentAnchor *me);
+
+ /* Message-ID, used for mail replies - kw
+ */
+ extern const char *HTAnchor_messageID(HTParentAnchor *me);
+
+ extern BOOL HTAnchor_setMessageID(HTParentAnchor *me,
+ const char *messageid);
+
+ /* Subject, used for mail replies - kw
+ */
+ extern const char *HTAnchor_subject(HTParentAnchor *me);
+
+ extern BOOL HTAnchor_setSubject(HTParentAnchor *me,
+ const char *subject);
+
+ /* Manipulation of links
+ * ---------------------
+ */
+ extern HTAnchor *HTAnchor_followLink(HTChildAnchor *me);
+
+ extern HTAnchor *HTAnchor_followTypedLink(HTChildAnchor *me,
+ HTLinkType *type);
+
+ /* Read and write methods
+ * ----------------------
+ */
+ extern HTList *HTAnchor_methods(HTParentAnchor *me);
+
+ /* Protocol
+ * --------
+ */
+ extern void *HTAnchor_protocol(HTParentAnchor *me);
+
+ extern void HTAnchor_setProtocol(HTParentAnchor *me,
+ void *protocol);
+
+ /* Physical address
+ * ----------------
+ */
+ extern char *HTAnchor_physical(HTParentAnchor *me);
+
+ extern void HTAnchor_setPhysical(HTParentAnchor *me,
+ char *protocol);
+
+ extern LYUCcharset *HTAnchor_getUCInfoStage(HTParentAnchor *me,
+ int which_stage);
+
+ extern int HTAnchor_getUCLYhndl(HTParentAnchor *me,
+ int which_stage);
+
+ extern LYUCcharset *HTAnchor_setUCInfoStage(HTParentAnchor *me,
+ int LYhndl,
+ int which_stage,
+ int set_by);
+
+ extern LYUCcharset *HTAnchor_setUCInfoStage(HTParentAnchor *me,
+ int LYhndl,
+ int which_stage,
+ int set_by);
+
+ extern LYUCcharset *HTAnchor_resetUCInfoStage(HTParentAnchor *me,
+ int LYhndl,
+ int which_stage,
+ int set_by);
+
+ extern LYUCcharset *HTAnchor_copyUCInfoStage(HTParentAnchor *me,
+ int to_stage,
+ int from_stage,
+ int set_by);
+
+ extern void ImageMapList_free(HTList *list);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* HTANCHOR_H */