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/* HTML to rich text converter for libwww
**
** THE HTML TO RTF OBJECT CONVERTER
**
** This interprets the HTML semantics.
*/
#ifndef HTML_H
#define HTML_H
#ifndef HTUTILS_H
#include "HTUtils.h"
#endif /* HTUTILS_H */
#include "UCDefs.h"
#include "UCAux.h"
#include "HTAnchor.h"
#include "HTMLDTD.h"
#ifdef SHORT_NAMES
#define HTMLPresentation HTMLPren
#define HTMLPresent HTMLPres
#endif /* SHORT_NAMES */
extern CONST HTStructuredClass HTMLPresentation;
#ifdef Lynx_HTML_Handler
/*
** This section is semi-private to HTML.c and it's helper modules. - FM
** --------------------------------------------------------------------
*/
typedef struct _stack_element {
HTStyle * style;
int tag_number;
} stack_element;
/* HTML Object
** -----------
*/
#define MAX_NESTING 800 /* Should be checked by parser */
struct _HTStructured {
CONST HTStructuredClass * isa;
HTParentAnchor * node_anchor;
HText * text;
HTStream* target; /* Output stream */
HTStreamClass targetClass; /* Output routines */
HTChildAnchor * CurrentA; /* current HTML_A anchor */
int CurrentANum; /* current HTML_A number */
char * base_href; /* current HTML_BASE href */
char * map_address; /* current HTML_MAP address */
HTChunk title; /* Grow by 128 */
HTChunk object; /* Grow by 128 */
BOOL object_started;
BOOL object_declare;
BOOL object_shapes;
BOOL object_ismap;
char * object_usemap;
char * object_id;
char * object_title;
char * object_data;
char * object_type;
char * object_classid;
char * object_codebase;
char * object_codetype;
char * object_name;
HTChunk option; /* Grow by 128 */
BOOL first_option; /* First OPTION in SELECT? */
char * LastOptionValue;
BOOL LastOptionChecked;
BOOL select_disabled;
HTChunk textarea; /* Grow by 128 */
char * textarea_name;
char * textarea_cols;
int textarea_rows;
int textarea_disabled;
char * textarea_id;
HTChunk math; /* Grow by 128 */
HTChunk style_block; /* Grow by 128 */
HTChunk script; /* Grow by 128 */
/*
* Used for nested lists. - FM
*/
int List_Nesting_Level; /* counter for list nesting level */
int OL_Counter[12]; /* counter for ordered lists */
char OL_Type[12]; /* types for ordered lists */
int Last_OL_Count; /* last count in ordered lists */
char Last_OL_Type; /* last type in ordered lists */
int Division_Level;
short DivisionAlignments[MAX_NESTING];
int Underline_Level;
int Quote_Level;
BOOL UsePlainSpace;
BOOL HiddenValue;
int lastraw;
char * comment_start; /* for literate programming */
char * comment_end;
HTTag * current_tag;
BOOL style_change;
HTStyle * new_style;
HTStyle * old_style;
int current_default_alignment;
BOOL in_word; /* Have just had a non-white char */
stack_element stack[MAX_NESTING];
stack_element *sp; /* Style stack pointer */
BOOL stack_overrun; /* Was MAX_NESTING exceeded? */
/*
** Track if we are in an anchor, paragraph, address, base, etc.
*/
BOOL inA;
BOOL inAPPLET;
BOOL inAPPLETwithP;
BOOL inBadBASE;
BOOL inBadHREF;
BOOL inBadHTML;
BOOL inBASE;
BOOL inBoldA;
BOOL inBoldH;
BOOL inCAPTION;
BOOL inCREDIT;
BOOL inFIG;
BOOL inFIGwithP;
BOOL inFONT;
BOOL inFORM;
BOOL inLABEL;
BOOL inP;
BOOL inPRE;
BOOL inSELECT;
BOOL inTABLE;
BOOL inTEXTAREA;
BOOL inUnderline;
BOOL needBoldH;
/*
** UCI and UCLYhndl give the UCInfo and charset registered for
** the HTML parser in the node_anchor's UCStages structure. It
** indicates what the MIME and SGML parsers should treat as the
** HTML parser's display charset. It is normally equated to the
** UCI and UCLhndl for the TEXT stage in the node_anchor's UCStages
** structure. - FM
*/
LYUCcharset * UCI;
int UCLYhndl;
/*
** inUCI and inUCLYhndl indicate the UCInfo and charset which the
** HTML parser treats at the input charset. It is normally set
** to the UCI and UCLhndl for the SGML parser in the node_anchor's
** UCStages structure (which may be a dummy, based on the MIME
** parser's UCI and UCLhndl in that structure, when we are handling
** a local file or non-http(s) gateway). It could be changed
** temporarily by the HTML parser, for conversions of attribute
** strings, but should be reset once done. - FM
*/
LYUCcharset * inUCI;
int inUCLYhndl;
/*
** outUCI and outUCLYhndl indicate the UCInfo and charset which
** the HTML parser treats as the output charset. It is normally
** set to its own UCI and UCLhndl. It could be changed for
** conversions of attribute strings, but should be reset once
** done. - FM
*/
LYUCcharset * outUCI;
int outUCLYhndl;
/*
** T holds the transformation rules for conversions of strings
** between the input and output charsets by the HTML parser. - FM
*/
UCTransParams T;
};
struct _HTStream {
CONST HTStreamClass * isa;
/* .... */
};
PUBLIC HTStyle *styles[HTML_ELEMENTS+31]; /* adding 24 nested list styles */
/* and 3 header alignment styles */
/* and 3 div alignment styles */
/*
* Semi-Private functions. - FM
*/
extern void HTML_put_character PARAMS((HTStructured *me, char c));
extern void HTML_put_string PARAMS((HTStructured *me, CONST char *s));
extern void HTML_write PARAMS((HTStructured *me, CONST char *s, int l));
extern int HTML_put_entity PARAMS((HTStructured *me, int entity_number));
extern void actually_set_style PARAMS((HTStructured * me));
/* Style buffering avoids dummy paragraph begin/ends.
*/
#define UPDATE_STYLE if (me->style_change) { actually_set_style(me); }
#endif /* Lynx_HTML_Handler */
/* P U B L I C
*/
/*
** HTConverter to present HTML
*/
extern HTStream* HTMLToPlain PARAMS((
HTPresentation * pres,
HTParentAnchor * anchor,
HTStream * sink));
extern HTStream* HTMLToC PARAMS((
HTPresentation * pres,
HTParentAnchor * anchor,
HTStream * sink));
extern HTStream* HTMLPresent PARAMS((
HTPresentation * pres,
HTParentAnchor * anchor,
HTStream * sink));
extern HTStructured* HTML_new PARAMS((
HTParentAnchor * anchor,
HTFormat format_out,
HTStream * target));
/*
** Names for selected internal representations.
*/
typedef enum _HTMLCharacterSet {
HTML_ISO_LATIN1,
HTML_NEXT_CHARS,
HTML_PC_CP950
} HTMLCharacterSet;
/*
** Record error message as a hypertext object.
**
** The error message should be marked as an error so that it can be
** reloaded later. This implementation just throws up an error message
** and leaves the document unloaded.
**
** On entry,
** sink is a stream to the output device if any
** number is the HTTP error number
** message is the human readable message.
** On exit,
** a retrun code like HT_LOADED if object exists else 60; 0
*/
extern int HTLoadError PARAMS((
HTStream * sink,
int number,
CONST char * message));
#endif /* HTML_H */
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