#ifndef EL__DOCUMENT_HTML_PARSER_H
#define EL__DOCUMENT_HTML_PARSER_H
#include "intl/charsets.h" /* unicode_val_T */
#include "util/align.h"
#include "util/color.h"
#include "util/lists.h"
struct document_options;
struct form_control;
struct frameset_desc;
struct html_context;
struct memory_list;
struct menu_item;
struct part;
struct string;
struct uri;
/* XXX: This is just terible - this interface is from 75% only for other HTML
* files - there's lack of any well defined interface and it's all randomly
* mixed up :/. */
enum format_attr {
AT_BOLD = 1,
AT_ITALIC = 2,
AT_UNDERLINE = 4,
AT_FIXED = 8,
AT_GRAPHICS = 16,
AT_SUBSCRIPT = 32,
AT_SUPERSCRIPT = 64,
AT_PREFORMATTED = 128,
AT_UPDATE_SUB = 256,
AT_UPDATE_SUP = 512,
};
struct text_attrib_style {
enum format_attr attr;
color_T fg;
color_T bg;
};
struct text_attrib {
struct text_attrib_style style;
int fontsize;
unsigned char *link;
unsigned char *target;
unsigned char *image;
unsigned char *title;
struct form_control *form;
color_T clink;
color_T vlink;
#ifdef CONFIG_BOOKMARKS
color_T bookmark_link;
#endif
color_T image_link;
unsigned char *select;
int select_disabled;
unsigned int tabindex;
unicode_val_T accesskey;
unsigned char *onclick;
unsigned char *ondblclick;
unsigned char *onmouseover;
unsigned char *onhover;
unsigned char *onfocus;
unsigned char *onmouseout;
unsigned char *onblur;
};
/* This enum is pretty ugly, yes ;). */
enum format_list_flag {
P_NONE = 0,
P_NUMBER = 1,
P_alpha = 2,
P_ALPHA = 3,
P_roman = 4,
P_ROMAN = 5,
P_STAR = 1,
P_O = 2,
P_PLUS = 3,
P_LISTMASK = 7,
P_COMPACT = 8,
};
struct par_attrib {
enum format_align align;
int leftmargin;
int rightmargin;
int width;
int list_level;
unsigned list_number;
int dd_margin;
enum format_list_flag flags;
color_T bgcolor;
};
/* HTML parser stack mortality info */
enum html_element_mortality_type {
/* Elements of this type can not be removed from the stack. This type
* is created by the renderer when formatting an HTML part. */
ELEMENT_IMMORTAL,
/* Elements of this type can only be removed by elements of the start
* type. This type is created whenever an HTML state is created using
* init_html_parser_state(). */
/* The element has been created by*/
ELEMENT_DONT_KILL,
/* These elements can safely be removed from the stack by both */
ELEMENT_KILLABLE,
/* These elements not only cannot bear any other elements inside but
* any attempt to do so will cause them to terminate. This is so deadly
* that it affects even invisible elements. Ie. foo<body>. */
ELEMENT_WEAK,
};
struct html_element {
LIST_HEAD(struct html_element);
enum html_element_mortality_type type;
struct text_attrib attr;
struct par_attrib parattr;
int invisible;
unsigned char *name;
int namelen;
unsigned char *options;
/* See document/html/parser/parse.c's element_info.linebreak
* description. */
int linebreak;
struct frameset_desc *frameset;
/* For the needs of CSS engine. A wannabe bitmask. */
enum html_element_pseudo_class {
ELEMENT_LINK = 1,
ELEMENT_VISITED = 2,
} pseudo_class;
};
#define is_inline_element(e) (e->linebreak == 0)
#define is_block_element(e) (e->linebreak > 0)
enum html_special_type {
SP_TAG,
SP_FORM,
SP_CONTROL,
SP_TABLE,
SP_USED,
SP_FRAMESET,
SP_FRAME,
SP_NOWRAP,
SP_CACHE_CONTROL,
SP_CACHE_EXPIRES,
SP_REFRESH,
SP_STYLESHEET,
SP_COLOR_LINK_LINES,
SP_SCRIPT,
};
/* Interface for the renderer */
struct html_context *
init_html_parser(struct uri *uri, struct document_options *options,
unsigned char *start, unsigned char *end,
struct string *head, struct string *title,
void (*put_chars)(struct html_context *, unsigned char *, int),
void (*line_break)(struct html_context *),
void *(*special)(struct html_context *, enum html_special_type,
...));
void done_html_parser(struct html_context *html_context);
struct html_element *init_html_parser_state(struct html_context *html_context, enum html_element_mortality_type type, int align, int margin, int width);
void done_html_parser_state(struct html_context *html_context,
struct html_element *element);
/* Interface for the table handling */
int get_bgcolor(struct html_context *html_context, unsigned char *a, color_T *rgb);
void set_fragment_identifier(struct html_context *html_context,
unsigned char *attr_name, unsigned char *attr);
void add_fragment_identifier(struct html_context *html_context,
struct part *, unsigned char *attr);
/* Interface for the viewer */
int
get_image_map(unsigned char *head, unsigned char *pos, unsigned char *eof,
struct menu_item **menu, struct memory_list **ml, struct uri *uri,
struct document_options *options, unsigned char *target_base,
int to, int def, int hdef);
/* For html/parser/forms.c,general.c,link.c,parse.c,stack.c */
/* Ensure that there are at least n successive line-breaks at the current
* position, but don't add more than necessary to bring the current number
* of successive line-breaks above n.
*
* For example, there should be two line-breaks after a <br>, but multiple
* successive <br>'s warrant still only two line-breaks. ln_break will be
* called with n = 2 for each of multiple successive <br>'s, but ln_break
* will only add two line-breaks for the entire run of <br>'s. */
void ln_break(struct html_context *html_context, int n);
int get_color(struct html_context *html_context, unsigned char *a, unsigned char *c, color_T *rgb);
#endif