diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/treebuilder/treebuilder.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/src/treebuilder/treebuilder.c b/src/treebuilder/treebuilder.c index deb2493..bf3ac41 100644 --- a/src/treebuilder/treebuilder.c +++ b/src/treebuilder/treebuilder.c @@ -119,6 +119,8 @@ static void hubbub_treebuilder_token_handler(const hubbub_token *token, static bool handle_initial(hubbub_treebuilder *treebuilder, const hubbub_token *token); +static bool handle_before_html(hubbub_treebuilder *treebuilder, + const hubbub_token *token); /** \todo Uncomment the static keyword here once these functions are actually used */ @@ -393,6 +395,8 @@ void hubbub_treebuilder_token_handler(const hubbub_token *token, reprocess = handle_initial(treebuilder, token); break; case BEFORE_HTML: + reprocess = handle_before_html(treebuilder, token); + break; case BEFORE_HEAD: case IN_HEAD: case IN_HEAD_NOSCRIPT: @@ -544,6 +548,177 @@ bool handle_initial(hubbub_treebuilder *treebuilder, const hubbub_token *token) } /** + * Handle token in "before html" insertion mode + * + * \param treebuilder The treebuilder instance + * \param token The token to handle + * \return True to reprocess token, false otherwise + */ +bool handle_before_html(hubbub_treebuilder *treebuilder, + const hubbub_token *token) +{ + bool reprocess = false; + + switch (token->type) { + case HUBBUB_TOKEN_DOCTYPE: + /** \todo parse error */ + break; + case HUBBUB_TOKEN_COMMENT: + { + int success; + void *comment, *appended; + + success = treebuilder->tree_handler->create_comment( + treebuilder->tree_handler->ctx, + &token->data.comment, &comment); + if (success != 0) { + /** \todo errors */ + } + + /* Append to Document node */ + success = treebuilder->tree_handler->append_child( + treebuilder->tree_handler->ctx, + treebuilder->context.document, + comment, &appended); + if (success != 0) { + /** \todo errors */ + treebuilder->tree_handler->unref_node( + treebuilder->tree_handler->ctx, + comment); + } + + treebuilder->tree_handler->unref_node( + treebuilder->tree_handler->ctx, appended); + treebuilder->tree_handler->unref_node( + treebuilder->tree_handler->ctx, comment); + } + break; + case HUBBUB_TOKEN_CHARACTER: + { + const uint8_t *data = treebuilder->input_buffer + + token->data.character.data_off; + size_t len = token->data.character.len; + size_t c; + + /** \todo UTF-16 */ + + for (c = 0; c < len; c++) { + if (data[c] != 0x09 && data[c] != 0x0A && + data[c] != 0x0B && data[c] != 0x0C && + data[c] != 0x20) + break; + } + /* Non-whitespace characters in token, so reprocess */ + if (c != len) { + /* Update token data to strip leading whitespace */ + ((hubbub_token *) token)->data.character.data_off += + len - c; + ((hubbub_token *) token)->data.character.len -= c; + + treebuilder->context.mode = BEFORE_HEAD; + reprocess = true; + } + } + break; + case HUBBUB_TOKEN_START_TAG: + { + element_type type = element_type_from_name(treebuilder, + &token->data.tag.name); + + treebuilder->context.mode = BEFORE_HEAD; + + if (type == HTML) { + int success; + void *html, *appended; + + success = treebuilder->tree_handler->create_element( + treebuilder->tree_handler->ctx, + &token->data.tag, &html); + if (success != 0) { + /** \todo errors */ + } + + success = treebuilder->tree_handler->append_child( + treebuilder->tree_handler->ctx, + treebuilder->context.document, + html, &appended); + if (success != 0) { + /** \todo errors */ + treebuilder->tree_handler->unref_node( + treebuilder->tree_handler->ctx, + html); + } + + /* We can't use element_stack_push() here, as it + * assumes that current_node is pointing at the index + * before the one to insert at. For the first entry in + * the stack, this does not hold so we must insert + * manually. */ + treebuilder->context.element_stack[0].type = HTML; + treebuilder->context.element_stack[0].node = html; + treebuilder->context.current_node = 0; + + /** \todo cache selection algorithm */ + + treebuilder->tree_handler->unref_node( + treebuilder->tree_handler->ctx, + appended); + } else { + reprocess = true; + } + } + break; + case HUBBUB_TOKEN_END_TAG: + case HUBBUB_TOKEN_EOF: + treebuilder->context.mode = BEFORE_HEAD; + reprocess = true; + break; + } + + if (reprocess == true) { + /* Need to manufacture html element */ + int success; + void *html, *appended; + + /** \todo UTF-16 */ + success = treebuilder->tree_handler->create_element_verbatim( + treebuilder->tree_handler->ctx, + (const uint8_t *) "html", SLEN("html"), &html); + if (success != 0) { + /** \todo errors */ + } + + success = treebuilder->tree_handler->append_child( + treebuilder->tree_handler->ctx, + treebuilder->context.document, + html, &appended); + if (success != 0) { + /** \todo errors */ + treebuilder->tree_handler->unref_node( + treebuilder->tree_handler->ctx, + html); + } + + /* We can't use element_stack_push() here, as it + * assumes that current_node is pointing at the index + * before the one to insert at. For the first entry in + * the stack, this does not hold so we must insert + * manually. */ + treebuilder->context.element_stack[0].type = HTML; + treebuilder->context.element_stack[0].node = html; + treebuilder->context.current_node = 0; + + /** \todo cache selection algorithm */ + + treebuilder->tree_handler->unref_node( + treebuilder->tree_handler->ctx, + appended); + } + + return reprocess; +} + +/** * Determine if an element is in (table) scope * * \param treebuilder Treebuilder to look in |