/**
* Trigger parsing of generic (R)CDATA
*
* \param treebuilder The treebuilder instance
* \param token The current token
* \param rcdata True for RCDATA, false for CDATA
* \return HUBBUB_OK on success, appropriate error otherwise
*/
hubbub_error parse_generic_rcdata(hubbub_treebuilder *treebuilder,
const hubbub_token *token, bool rcdata)
{
hubbub_error error;
element_type type;
type = element_type_from_name(treebuilder, &token->data.tag.name);
error = insert_element(treebuilder, &token->data.tag, true);
if (error != HUBBUB_OK)
return error;
//params.content_model.model = rcdata ? HUBBUB_CONTENT_MODEL_RCDATA
// : HUBBUB_CONTENT_MODEL_CDATA;
//error = treebuilder->tokeniser ? hubbub_tokeniser_setopt(treebuilder->tokeniser,
// HUBBUB_TOKENISER_CONTENT_MODEL, ¶ms) : HUBBUB_OK;
treebuilder->context.collect.mode = treebuilder->context.mode;
treebuilder->context.collect.type = type;
treebuilder->context.mode = GENERIC_RCDATA;
return HUBBUB_OK;
}
/**
* 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 tokens in "generic rcdata" insertion mode
*
* \param treebuilder The treebuilder instance
* \param token The token to process
* \return True to reprocess the token, false otherwise
*/
hubbub_error handle_generic_rcdata(hubbub_treebuilder *treebuilder,
const hubbub_token *token)
{
hubbub_error err = HUBBUB_OK;
bool done = false;
if (treebuilder->context.strip_leading_lr &&
token->type != HUBBUB_TOKEN_CHARACTER) {
/* Reset the LR stripping flag */
treebuilder->context.strip_leading_lr = false;
}
switch (token->type) {
case HUBBUB_TOKEN_CHARACTER:
{
hubbub_string chars = token->data.character;
if (treebuilder->context.strip_leading_lr) {
if (chars.ptr[0] == '\n') {
chars.ptr++;
chars.len--;
}
treebuilder->context.strip_leading_lr = false;
}
if (chars.len == 0)
break;
err = append_text(treebuilder, &chars);
}
break;
case HUBBUB_TOKEN_END_TAG:
{
element_type type = element_type_from_name(treebuilder,
&token->data.tag.name);
if (type != treebuilder->context.collect.type) {
/** \todo parse error */
}
if ((treebuilder->context.enable_scripting == true) &&
(type == SCRIPT)) {
err = complete_script(treebuilder);
}
done = true;
}
break;
case HUBBUB_TOKEN_EOF:
/** \todo if the current node's a script,
* mark it as already executed */
/** \todo parse error */
done = true;
err = HUBBUB_REPROCESS;
break;
case HUBBUB_TOKEN_COMMENT:
case HUBBUB_TOKEN_DOCTYPE:
case HUBBUB_TOKEN_START_TAG:
/* Should never happen */
assert(0);
break;
}
if (done) {
hubbub_ns ns;
element_type otype;
void *node;
/* Pop the current node from the stack */
element_stack_pop(treebuilder, &ns, &otype, &node);
/* Return to previous insertion mode */
treebuilder->context.mode = treebuilder->context.collect.mode;
}
return err;
}
/**
* Handle token in "in head" insertion mode
*
* \param treebuilder The treebuilder instance
* \param token The token to handle
* \return True to reprocess token, false otherwise
*/
hubbub_error handle_in_head(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 = 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" */
err = handle_in_body(treebuilder, token);
} else if (type == BASE || type == COMMAND || type == LINK) {
err = insert_element(treebuilder, &token->data.tag,
false);
/** \todo ack sc flag */
} else if (type == META) {
err = process_meta_in_head(treebuilder, token);
} else if (type == TITLE) {
err = parse_generic_rcdata(treebuilder, token, true);
} else if (type == NOFRAMES || type == STYLE) {
err = parse_generic_rcdata(treebuilder, token, false);
} else if (type == NOSCRIPT) {
if (treebuilder->context.enable_scripting) {
err = parse_generic_rcdata(treebuilder, token,
false);
} else {
err = insert_element(treebuilder,
&token->data.tag, true);
if (err != HUBBUB_OK)
return err;
treebuilder->context.mode = IN_HEAD_NOSCRIPT;
}
} else if (type == SCRIPT) {
/** \todo need to ensure that the client callback
* sets the parser-inserted/already-executed script
* flags. */
err = parse_generic_rcdata(treebuilder, token, false);
} else if (type == HEAD) {
/** \todo parse error */
} else {
err = HUBBUB_REPROCESS;
}
}
break;
case HUBBUB_TOKEN_END_TAG:
{
element_type type = element_type_from_name(treebuilder,
&token->data.tag.name);
if (type == HEAD) {
handled = true;
} else if (type == HTML || type == BODY || type == BR) {
err = HUBBUB_REPROCESS;
} /** \todo parse error */
}
break;
case HUBBUB_TOKEN_EOF:
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->context.mode = AFTER_HEAD;
}
return err;
}
/**
* 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 tokens in "in caption" 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_caption(hubbub_treebuilder *treebuilder,
const hubbub_token *token)
{
hubbub_error err = HUBBUB_OK;
bool handled = false;
switch (token->type) {
case HUBBUB_TOKEN_START_TAG:
{
element_type type = element_type_from_name(treebuilder,
&token->data.tag.name);
if (type == CAPTION || type == COL || type == COLGROUP ||
type == TBODY || type == TD || type == TFOOT ||
type == TH || type == THEAD || type == TR) {
/** \todo parse error */
err = HUBBUB_REPROCESS;
} else {
/* Process as if "in body" */
err = handle_in_body(treebuilder, token);
}
}
break;
case HUBBUB_TOKEN_END_TAG:
{
element_type type = element_type_from_name(treebuilder,
&token->data.tag.name);
if (type == CAPTION) {
handled = true;
} else if (type == TABLE) {
/** \todo parse error if type == TABLE */
err = HUBBUB_REPROCESS;
} else if (type == BODY || type == COL || type == COLGROUP ||
type == HTML || type == TBODY || type == TD ||
type == TFOOT || type == TH ||
type == THEAD || type == TR) {
/** \todo parse error */
} else {
/* Process as if "in body" */
err = handle_in_body(treebuilder, token);
}
}
break;
case HUBBUB_TOKEN_CHARACTER:
case HUBBUB_TOKEN_COMMENT:
case HUBBUB_TOKEN_DOCTYPE:
case HUBBUB_TOKEN_EOF:
/* Process as if "in body" */
err = handle_in_body(treebuilder, token);
break;
}
if (handled || err == HUBBUB_REPROCESS) {
hubbub_ns ns;
element_type otype = UNKNOWN;
void *node;
/** \todo fragment case */
close_implied_end_tags(treebuilder, UNKNOWN);
while (otype != CAPTION) {
/** \todo parse error */
element_stack_pop(treebuilder, &ns, &otype, &node);
}
clear_active_formatting_list_to_marker(treebuilder);
treebuilder->context.mode = IN_TABLE;
}
return err;
}
/**
* Create element and insert it into the DOM,
* potentially pushing it on the stack
*
* \param treebuilder The treebuilder instance
* \param tag The element to insert
* \param push Whether to push the element onto the stack
* \return HUBBUB_OK on success, appropriate error otherwise.
*/
hubbub_error insert_element(hubbub_treebuilder *treebuilder,
const hubbub_tag *tag, bool push)
{
element_type type = current_node(treebuilder);
hubbub_error error;
void *appended;
if (treebuilder->context.in_table_foster &&
(type == TABLE || type == TBODY || type == TFOOT ||
type == THEAD || type == TR)) {
error = aa_insert_into_foster_parent_new(treebuilder,
HUBBUB_TOKEN_START_TAG,
&appended);
} else {
error = treebuilder->tree_handler->append_child_new(
treebuilder->tree_handler->ctx,
treebuilder->context.element_stack[
treebuilder->context.current_node].node,
HUBBUB_TOKEN_START_TAG, &appended);
}
if (error != HUBBUB_OK)
return error;
error = treebuilder->tree_handler->set_name(
treebuilder->tree_handler->ctx,
appended,
&tag->name);
if (error != HUBBUB_OK)
return error;
error = treebuilder->tree_handler->add_attributes(
treebuilder->tree_handler->ctx,
appended,
tag->attributes,
tag->n_attributes);
if (error != HUBBUB_OK)
return error;
type = element_type_from_name(treebuilder, &tag->name);
if (treebuilder->context.form_element != NULL &&
is_form_associated(type)) {
/* Consideration of @form is left to the client */
error = treebuilder->tree_handler->form_associate(
treebuilder->tree_handler->ctx,
treebuilder->context.form_element,
appended);
if (error != HUBBUB_OK) {
remove_node_from_dom(treebuilder, appended);
return error;
}
}
if (push) {
error = element_stack_push(treebuilder,
tag->ns, type, appended);
if (error != HUBBUB_OK) {
remove_node_from_dom(treebuilder, appended);
return error;
}
}
return HUBBUB_OK;
}
/**
* Handle tokens in "in row" 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_row(hubbub_treebuilder *treebuilder,
const hubbub_token *token)
{
hubbub_error err = HUBBUB_OK;
switch (token->type) {
case HUBBUB_TOKEN_START_TAG:
{
element_type type = element_type_from_name(treebuilder,
&token->data.tag.name);
if (type == TH || type == TD) {
table_clear_stack(treebuilder);
err = insert_element(treebuilder, &token->data.tag,
true);
if (err != HUBBUB_OK)
return err;
treebuilder->context.mode = IN_CELL;
/* ref node for formatting list */
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) {
hubbub_ns ns;
element_type type;
void *node;
/* Revert changes */
remove_node_from_dom(treebuilder,
treebuilder->context.element_stack[
treebuilder->context.current_node].node);
element_stack_pop(treebuilder, &ns, &type,
&node);
return err;
}
} else if (type == CAPTION || type == COL ||
type == COLGROUP || type == TBODY ||
type == TFOOT || type == THEAD || type == TR) {
err = act_as_if_end_tag_tr(treebuilder);
} else {
err = handle_in_table(treebuilder, token);
}
}
break;
case HUBBUB_TOKEN_END_TAG:
{
element_type type = element_type_from_name(treebuilder,
&token->data.tag.name);
if (type == TR) {
/* We're done with this token, but act_as_if_end_tag_tr
* will return HUBBUB_REPROCESS. Therefore, ignore the
* return value. */
(void) act_as_if_end_tag_tr(treebuilder);
} else if (type == TABLE) {
err = act_as_if_end_tag_tr(treebuilder);
} else if (type == BODY || type == CAPTION || type == COL ||
type == COLGROUP || type == HTML ||
type == TD || type == TH) {
/** \todo parse error */
/* Ignore the token */
} else {
err = handle_in_table(treebuilder, token);
}
}
break;
case HUBBUB_TOKEN_CHARACTER:
case HUBBUB_TOKEN_COMMENT:
case HUBBUB_TOKEN_DOCTYPE:
case HUBBUB_TOKEN_EOF:
err = handle_in_table(treebuilder, token);
break;
}
return err;
}
/**
* Handle tokens in "in column group" 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_column_group(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 = 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" */
err = handle_in_body(treebuilder, token);
} else if (type == COL) {
err = insert_element(treebuilder, &token->data.tag,
false);
/** \todo ack sc flag */
} else {
err = HUBBUB_REPROCESS;
}
}
break;
case HUBBUB_TOKEN_END_TAG:
{
element_type type = element_type_from_name(treebuilder,
&token->data.tag.name);
if (type == COLGROUP) {
/** \todo fragment case */
handled = true;
} else if (type == COL) {
/** \todo parse error */
} else {
err = HUBBUB_REPROCESS;
}
}
break;
case HUBBUB_TOKEN_EOF:
/** \todo fragment case */
err = HUBBUB_REPROCESS;
break;
}
if (handled || err == HUBBUB_REPROCESS) {
hubbub_ns ns;
element_type otype;
void *node;
/* Pop the current node (which will be a colgroup) */
element_stack_pop(treebuilder, &ns, &otype, &node);
treebuilder->context.mode = IN_TABLE;
}
return err;
}
