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/*
* This file is part of Hubbub.
* Licensed under the MIT License,
* http://www.opensource.org/licenses/mit-license.php
* Copyright 2008 John-Mark Bell <jmb@netsurf-browser.org>
*/
#include <assert.h>
#include <string.h>
#include "treebuilder/modes.h"
#include "treebuilder/internal.h"
#include "treebuilder/treebuilder.h"
#include "utils/utils.h"
/**
* Handle token in "before head" insertion mode
*
* \param treebuilder The treebuilder instance
* \param token The token to handle
* \return True to reprocess token, false otherwise
*/
bool handle_before_head(hubbub_treebuilder *treebuilder,
const hubbub_token *token)
{
bool reprocess = false;
bool handled = false;
switch (token->type) {
case HUBBUB_TOKEN_CHARACTER:
reprocess = process_characters_expect_whitespace(treebuilder,
token, false);
break;
case HUBBUB_TOKEN_COMMENT:
process_comment_append(treebuilder, token,
treebuilder->context.element_stack[
treebuilder->context.current_node].node);
break;
case HUBBUB_TOKEN_DOCTYPE:
/** \todo parse error */
break;
case HUBBUB_TOKEN_START_TAG:
{
element_type type = element_type_from_name(treebuilder,
&token->data.tag.name);
if (type == HTML) {
/* Process as if "in body" */
handle_in_body(treebuilder, token);
} else if (type == HEAD) {
handled = true;
} else {
reprocess = true;
}
}
break;
case HUBBUB_TOKEN_END_TAG:
{
element_type type = element_type_from_name(treebuilder,
&token->data.tag.name);
if (type == HEAD || type == BR) {
reprocess = true;
} else {
/** \todo parse error */
}
}
break;
case HUBBUB_TOKEN_EOF:
reprocess = true;
break;
}
if (handled || reprocess) {
hubbub_tag tag;
if (reprocess) {
/* Manufacture head tag */
tag.ns = HUBBUB_NS_HTML;
tag.name.type = HUBBUB_STRING_PTR;
tag.name.data.ptr = (const uint8_t *) "head";
tag.name.len = SLEN("head");
tag.n_attributes = 0;
tag.attributes = NULL;
} else {
tag = token->data.tag;
}
insert_element(treebuilder, &tag);
treebuilder->tree_handler->ref_node(
treebuilder->tree_handler->ctx,
treebuilder->context.element_stack[
treebuilder->context.current_node].node);
treebuilder->context.head_element =
treebuilder->context.element_stack[
treebuilder->context.current_node].node;
treebuilder->context.mode = IN_HEAD;
}
return reprocess;
}
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