/**
* Handle tokens in "in head noscript" insertion mode
*
* \param treebuilder The treebuilder instance
* \param token The token to process
* \return True to reprocess the token, false otherwise
*/
hubbub_error handle_in_head_noscript(hubbub_treebuilder *treebuilder,
const hubbub_token *token)
{
hubbub_error err = HUBBUB_OK;
bool handled = false;
switch (token->type) {
case HUBBUB_TOKEN_CHARACTER:
err = process_characters_expect_whitespace(treebuilder,
token, true);
break;
case HUBBUB_TOKEN_COMMENT:
err = handle_in_head(treebuilder, token);
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 "in body" */
err = handle_in_body(treebuilder, token);
} else if (type == NOSCRIPT) {
handled = true;
} else if (type == LINK || type == META || type == NOFRAMES ||
type == STYLE) {
/* Process as "in head" */
err = handle_in_head(treebuilder, token);
} else if (type == HEAD || type == NOSCRIPT) {
/** \todo parse error */
} else {
/** \todo parse error */
err = HUBBUB_REPROCESS;
}
}
break;
case HUBBUB_TOKEN_END_TAG:
{
element_type type = element_type_from_name(treebuilder,
&token->data.tag.name);
if (type == NOSCRIPT) {
handled = true;
} else if (type == BR) {
/** \todo parse error */
err = HUBBUB_REPROCESS;
} else {
/** \todo parse error */
}
}
break;
case HUBBUB_TOKEN_EOF:
/** \todo parse error */
err = HUBBUB_REPROCESS;
break;
}
if (handled || err == HUBBUB_REPROCESS) {
hubbub_ns ns;
element_type otype;
void *node;
element_stack_pop(treebuilder, &ns, &otype, &node);
treebuilder->tree_handler->unref_node(
treebuilder->tree_handler->ctx,
node);
treebuilder->context.mode = IN_HEAD;
}
return err;
}
/**
* Handle token in "in table" insertion mode
*
* \param treebuilder The treebuilder instance
* \param token The token to handle
* \return True to reprocess token, false otherwise
*/
hubbub_error handle_in_table(hubbub_treebuilder *treebuilder,
const hubbub_token *token)
{
hubbub_error err = HUBBUB_OK;
bool handled = true;
switch (token->type) {
case HUBBUB_TOKEN_CHARACTER:
if (treebuilder->context.element_stack[
current_table(treebuilder)
].tainted) {
handled = false;
} else {
err = process_characters_expect_whitespace(
treebuilder, token, true);
handled = (err == HUBBUB_OK);
}
break;
case HUBBUB_TOKEN_COMMENT:
err = 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);
bool tainted = treebuilder->context.element_stack[
current_table(treebuilder)
].tainted;
if (type == CAPTION) {
clear_stack_table_context(treebuilder);
treebuilder->tree_handler->ref_node(
treebuilder->tree_handler->ctx,
treebuilder->context.element_stack[
treebuilder->context.current_node].node);
err = formatting_list_append(treebuilder,
token->data.tag.ns, type,
treebuilder->context.element_stack[
treebuilder->context.current_node].node,
treebuilder->context.current_node);
if (err != HUBBUB_OK) {
treebuilder->tree_handler->unref_node(
treebuilder->tree_handler->ctx,
treebuilder->context.element_stack[
treebuilder->context.current_node].node);
return err;
}
err = insert_element(treebuilder, &token->data.tag,
true);
if (err != HUBBUB_OK) {
hubbub_ns ns;
element_type type;
void *node;
uint32_t index;
formatting_list_remove(treebuilder,
treebuilder->context.formatting_list_end,
&ns, &type, &node, &index);
treebuilder->tree_handler->unref_node(
treebuilder->tree_handler->ctx,
node);
return err;
}
treebuilder->context.mode = IN_CAPTION;
} else if (type == COLGROUP || type == COL) {
hubbub_error e;
hubbub_tag tag = token->data.tag;
if (type == COL) {
/* Insert colgroup and reprocess */
tag.name.ptr = (const uint8_t *) "colgroup";
tag.name.len = SLEN("colgroup");
tag.n_attributes = 0;
tag.attributes = NULL;
err = HUBBUB_REPROCESS;
}
clear_stack_table_context(treebuilder);
e = insert_element(treebuilder, &tag, true);
if (e != HUBBUB_OK)
return e;
treebuilder->context.mode = IN_COLUMN_GROUP;
} else if (type == TBODY || type == TFOOT || type == THEAD ||
type == TD || type == TH || type == TR) {
hubbub_error e;
hubbub_tag tag = token->data.tag;
if (type == TD || type == TH || type == TR) {
/* Insert tbody and reprocess */
tag.name.ptr = (const uint8_t *) "tbody";
tag.name.len = SLEN("tbody");
tag.n_attributes = 0;
tag.attributes = NULL;
err = HUBBUB_REPROCESS;
}
clear_stack_table_context(treebuilder);
e = insert_element(treebuilder, &tag, true);
if (e != HUBBUB_OK)
return e;
treebuilder->context.mode = IN_TABLE_BODY;
} else if (type == TABLE) {
/** \todo parse error */
/* This should match "</table>" handling */
element_stack_pop_until(treebuilder, TABLE);
reset_insertion_mode(treebuilder);
err = HUBBUB_REPROCESS;
} else if (!tainted && (type == STYLE || type == SCRIPT)) {
err = handle_in_head(treebuilder, token);
} else if (!tainted && type == INPUT) {
err = process_input_in_table(treebuilder, token);
handled = (err == HUBBUB_OK);
} else {
handled = false;
}
}
break;
case HUBBUB_TOKEN_END_TAG:
{
element_type type = element_type_from_name(treebuilder,
&token->data.tag.name);
if (type == TABLE) {
/** \todo fragment case */
element_stack_pop_until(treebuilder, TABLE);
reset_insertion_mode(treebuilder);
} else if (type == BODY || type == CAPTION || type == COL ||
type == COLGROUP || type == HTML ||
type == TBODY || type == TD || type == TFOOT ||
type == TH || type == THEAD || type == TR) {
/** \todo parse error */
} else {
handled = false;
}
}
break;
case HUBBUB_TOKEN_EOF:
break;
}
if (!handled) {
treebuilder->context.in_table_foster = true;
/** \todo parse error */
err = handle_in_body(treebuilder, token);
treebuilder->context.in_table_foster = false;
}
return err;
}
/**
* Handle tokeniser emitting a token
*
* \param token The emitted token
* \param pw Pointer to treebuilder instance
*/
hubbub_error hubbub_treebuilder_token_handler(const hubbub_token *token,
void *pw)
{
hubbub_treebuilder *treebuilder = (hubbub_treebuilder *) pw;
hubbub_error err = HUBBUB_REPROCESS;
/* Do nothing if we have no document node or there's no tree handler */
if (treebuilder->context.document == NULL ||
treebuilder->tree_handler == NULL)
return HUBBUB_OK;
assert((signed) treebuilder->context.current_node >= 0);
/* A slightly nasty debugging hook, but very useful */
#ifdef NDEBUG
# define mode(x) \
case x:
#else
# define mode(x) \
case x: \
printf( #x "\n");
#endif
while (err == HUBBUB_REPROCESS) {
switch (treebuilder->context.mode) {
mode(INITIAL)
err = handle_initial(treebuilder, token);
break;
mode(BEFORE_HTML)
err = handle_before_html(treebuilder, token);
break;
mode(BEFORE_HEAD)
err = handle_before_head(treebuilder, token);
break;
mode(IN_HEAD)
err = handle_in_head(treebuilder, token);
break;
mode(IN_HEAD_NOSCRIPT)
err = handle_in_head_noscript(treebuilder, token);
break;
mode(AFTER_HEAD)
err = handle_after_head(treebuilder, token);
break;
mode(IN_BODY)
err = handle_in_body(treebuilder, token);
break;
mode(IN_TABLE)
err = handle_in_table(treebuilder, token);
break;
mode(IN_CAPTION)
err = handle_in_caption(treebuilder, token);
break;
mode(IN_COLUMN_GROUP)
err = handle_in_column_group(treebuilder, token);
break;
mode(IN_TABLE_BODY)
err = handle_in_table_body(treebuilder, token);
break;
mode(IN_ROW)
err = handle_in_row(treebuilder, token);
break;
mode(IN_CELL)
err = handle_in_cell(treebuilder, token);
break;
mode(IN_SELECT)
err = handle_in_select(treebuilder, token);
break;
mode(IN_SELECT_IN_TABLE)
err = handle_in_select_in_table(treebuilder, token);
break;
mode(IN_FOREIGN_CONTENT)
err = handle_in_foreign_content(treebuilder, token);
break;
mode(AFTER_BODY)
err = handle_after_body(treebuilder, token);
break;
mode(IN_FRAMESET)
err = handle_in_frameset(treebuilder, token);
break;
mode(AFTER_FRAMESET)
err = handle_after_frameset(treebuilder, token);
break;
mode(AFTER_AFTER_BODY)
err = handle_after_after_body(treebuilder, token);
break;
mode(AFTER_AFTER_FRAMESET)
err = handle_after_after_frameset(treebuilder, token);
break;
mode(GENERIC_RCDATA)
err = handle_generic_rcdata(treebuilder, token);
break;
}
}
return err;
}
