/* $Id: sgml.h,v 1.2 2004/09/24 00:44:59 jonas Exp $ */ #ifndef EL__DOCUMENT_SGML_SGML_H #define EL__DOCUMENT_SGML_SGML_H #include #include "document/dom/navigator.h" /* The flags stored in the attribute sgml node info data */ /* TODO: Other potential flags (there can be only 16) * * - interaction info for forms (diabled, readonly, maxlength) maybe tabindex, * - table layout, * - generic layout style attributes maybe giving color values an additional flag, * - meta information (rel, rev, title, alt, summary, caption, standby, lang), * - scripting hooks (onblur, ...) * - information about the referenced content (hreflang, codetype, media, type) * * Anyway the flags should of course optimally have a purpose to speed things up * by quickly making it possible to identify certain attribute groups. --jonas */ enum sgml_attribute_flags { /* The value uniquely identifies the owner */ SGML_ATTRIBUTE_IDENTIFIER = 1, /* The value contains an URI of some sort */ SGML_ATTRIBUTE_REFERENCE = 2, }; /* TODO: We also need an element flag to signal to the parser that all the * content should be skipped; possible with some ugly hacks to not use the * scanner since it could get confused. The purpose of this flag is to group * all element content in one text node. Kind of like a ``verbatim'' thing * where not parsing should be done. For HTML the and tags * should use it. */ enum sgml_element_flags { /* The start and end tags are optional */ SGML_ELEMENT_OPTIONAL = 1, /* The element is empty and end tags are forbidden */ SGML_ELEMENT_EMPTY = 2, /* The end tag is obtional */ SGML_ELEMENT_END_OPTIONAL = 4, }; struct sgml_node_info { unsigned char *string; int length; uint16_t type; uint16_t flags; }; #define SGML_NODE_HEAD(doctype, nodetype) \ { NULL, doctype##_##nodetype##S - 1, doctype##_##nodetype##_UNKNOWN } #define SGML_NODE_INFO(doctype, nodetype, name, data) \ { #name, sizeof(#name) - 1, doctype##_##nodetype##_##name, data } #define SGML_NODE_INF2(doctype, nodetype, name, ident, data) \ { ident, sizeof(ident) - 1, doctype##_##nodetype##_##name, data } #define SGML_NODE_INFO_TYPE(doctype, nodetype, name) doctype##_##nodetype##_##name int sgml_info_strcmp(const void *key, const void *node); static inline struct sgml_node_info * get_sgml_node_info(struct sgml_node_info list[], struct dom_node *node) { struct sgml_node_info *map = &list[1]; size_t map_size = list->length; size_t obj_size = sizeof(struct sgml_node_info); void *match = bsearch(node, map, map_size, obj_size, sgml_info_strcmp); return match ? match : list; } struct sgml_info { struct sgml_node_info *attributes; struct sgml_node_info *elements; dom_navigator_callback_T callbacks[DOM_NODES]; }; #endif
