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-rw-r--r--src/tree_builder/rules.rs1449
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diff --git a/src/tree_builder/rules.rs b/src/tree_builder/rules.rs
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+// Copyright 2014-2017 The html5ever Project Developers. See the
+// COPYRIGHT file at the top-level directory of this distribution.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+// The tree builder rules, as a single, enormous nested match expression.
+
+use markup5ever::{expanded_name, local_name, namespace_prefix, namespace_url, ns};
+use crate::tokenizer::states::{Plaintext, Rawtext, Rcdata, ScriptData};
+use crate::tree_builder::tag_sets::*;
+use crate::tree_builder::types::*;
+
+use std::borrow::ToOwned;
+
+use crate::tendril::SliceExt;
+
+fn any_not_whitespace(x: &StrTendril) -> bool {
+ // FIXME: this might be much faster as a byte scan
+ x.chars().any(|c| !is_ascii_whitespace(c))
+}
+
+fn current_node<Handle>(open_elems: &[Handle]) -> &Handle {
+ open_elems.last().expect("no current element")
+}
+
+#[doc(hidden)]
+impl<Handle, Sink> TreeBuilder<Handle, Sink>
+where
+ Handle: Clone,
+ Sink: TreeSink<Handle = Handle>,
+{
+ fn step(&mut self, mode: InsertionMode, token: Token) -> ProcessResult<Handle> {
+ self.debug_step(mode, &token);
+
+ match mode {
+ //§ the-initial-insertion-mode
+ Initial => match_token!(token {
+ CharacterTokens(NotSplit, text) => SplitWhitespace(text),
+ CharacterTokens(Whitespace, _) => Done,
+ CommentToken(text) => self.append_comment_to_doc(text),
+ token => {
+ if !self.opts.iframe_srcdoc {
+ self.unexpected(&token);
+ self.set_quirks_mode(Quirks);
+ }
+ Reprocess(BeforeHtml, token)
+ }
+ }),
+
+ //§ the-before-html-insertion-mode
+ BeforeHtml => match_token!(token {
+ CharacterTokens(NotSplit, text) => SplitWhitespace(text),
+ CharacterTokens(Whitespace, _) => Done,
+ CommentToken(text) => self.append_comment_to_doc(text),
+
+ tag @ <html> => {
+ self.create_root(tag.attrs);
+ self.mode = BeforeHead;
+ Done
+ }
+
+ </head> </body> </html> </br> => else,
+
+ tag @ </_> => self.unexpected(&tag),
+
+ token => {
+ self.create_root(vec!());
+ Reprocess(BeforeHead, token)
+ }
+ }),
+
+ //§ the-before-head-insertion-mode
+ BeforeHead => match_token!(token {
+ CharacterTokens(NotSplit, text) => SplitWhitespace(text),
+ CharacterTokens(Whitespace, _) => Done,
+ CommentToken(text) => self.append_comment(text),
+
+ <html> => self.step(InBody, token),
+
+ tag @ <head> => {
+ self.head_elem = Some(self.insert_element_for(tag));
+ self.mode = InHead;
+ Done
+ }
+
+ </head> </body> </html> </br> => else,
+
+ tag @ </_> => self.unexpected(&tag),
+
+ token => {
+ self.head_elem = Some(self.insert_phantom(local_name!("head")));
+ Reprocess(InHead, token)
+ }
+ }),
+
+ //§ parsing-main-inhead
+ InHead => match_token!(token {
+ CharacterTokens(NotSplit, text) => SplitWhitespace(text),
+ CharacterTokens(Whitespace, text) => self.append_text(text),
+ CommentToken(text) => self.append_comment(text),
+
+ <html> => self.step(InBody, token),
+
+ tag @ <base> <basefont> <bgsound> <link> <meta> => {
+ // FIXME: handle <meta charset=...> and <meta http-equiv="Content-Type">
+ self.insert_and_pop_element_for(tag);
+ DoneAckSelfClosing
+ }
+
+ tag @ <title> => {
+ self.parse_raw_data(tag, Rcdata)
+ }
+
+ tag @ <noframes> <style> <noscript> => {
+ if (!self.opts.scripting_enabled) && (tag.name == local_name!("noscript")) {
+ self.insert_element_for(tag);
+ self.mode = InHeadNoscript;
+ Done
+ } else {
+ self.parse_raw_data(tag, Rawtext)
+ }
+ }
+
+ tag @ <script> => {
+ let elem = create_element(
+ &mut self.sink, QualName::new(None, ns!(html), local_name!("script")),
+ tag.attrs);
+ if self.is_fragment() {
+ self.sink.mark_script_already_started(&elem);
+ }
+ self.insert_appropriately(AppendNode(elem.clone()), None);
+ self.open_elems.push(elem);
+ self.to_raw_text_mode(ScriptData)
+ }
+
+ </head> => {
+ self.pop();
+ self.mode = AfterHead;
+ Done
+ }
+
+ </body> </html> </br> => else,
+
+ tag @ <template> => {
+ self.insert_element_for(tag);
+ self.active_formatting.push(Marker);
+ self.frameset_ok = false;
+ self.mode = InTemplate;
+ self.template_modes.push(InTemplate);
+ Done
+ }
+
+ tag @ </template> => {
+ if !self.in_html_elem_named(local_name!("template")) {
+ self.unexpected(&tag);
+ } else {
+ self.generate_implied_end(thorough_implied_end);
+ self.expect_to_close(local_name!("template"));
+ self.clear_active_formatting_to_marker();
+ self.template_modes.pop();
+ self.mode = self.reset_insertion_mode();
+ }
+ Done
+ }
+
+ <head> => self.unexpected(&token),
+ tag @ </_> => self.unexpected(&tag),
+
+ token => {
+ self.pop();
+ Reprocess(AfterHead, token)
+ }
+ }),
+
+ //§ parsing-main-inheadnoscript
+ InHeadNoscript => match_token!(token {
+ <html> => self.step(InBody, token),
+
+ </noscript> => {
+ self.pop();
+ self.mode = InHead;
+ Done
+ },
+
+ CharacterTokens(NotSplit, text) => SplitWhitespace(text),
+ CharacterTokens(Whitespace, _) => self.step(InHead, token),
+
+ CommentToken(_) => self.step(InHead, token),
+
+ <basefont> <bgsound> <link> <meta> <noframes> <style>
+ => self.step(InHead, token),
+
+ </br> => else,
+
+ <head> <noscript> => self.unexpected(&token),
+ tag @ </_> => self.unexpected(&tag),
+
+ token => {
+ self.unexpected(&token);
+ self.pop();
+ Reprocess(InHead, token)
+ },
+ }),
+
+ //§ the-after-head-insertion-mode
+ AfterHead => match_token!(token {
+ CharacterTokens(NotSplit, text) => SplitWhitespace(text),
+ CharacterTokens(Whitespace, text) => self.append_text(text),
+ CommentToken(text) => self.append_comment(text),
+
+ <html> => self.step(InBody, token),
+
+ tag @ <body> => {
+ self.insert_element_for(tag);
+ self.frameset_ok = false;
+ self.mode = InBody;
+ Done
+ }
+
+ tag @ <frameset> => {
+ self.insert_element_for(tag);
+ self.mode = InFrameset;
+ Done
+ }
+
+ <base> <basefont> <bgsound> <link> <meta>
+ <noframes> <script> <style> <template> <title> => {
+ self.unexpected(&token);
+ let head = self.head_elem.as_ref().expect("no head element").clone();
+ self.push(&head);
+ let result = self.step(InHead, token);
+ self.remove_from_stack(&head);
+ result
+ }
+
+ </template> => self.step(InHead, token),
+
+ </body> </html> </br> => else,
+
+ <head> => self.unexpected(&token),
+ tag @ </_> => self.unexpected(&tag),
+
+ token => {
+ self.insert_phantom(local_name!("body"));
+ Reprocess(InBody, token)
+ }
+ }),
+
+ //§ parsing-main-inbody
+ InBody => match_token!(token {
+ NullCharacterToken => self.unexpected(&token),
+
+ CharacterTokens(_, text) => {
+ self.reconstruct_formatting();
+ if any_not_whitespace(&text) {
+ self.frameset_ok = false;
+ }
+ self.append_text(text)
+ }
+
+ CommentToken(text) => self.append_comment(text),
+
+ tag @ <html> => {
+ self.unexpected(&tag);
+ if !self.in_html_elem_named(local_name!("template")) {
+ let top = html_elem(&self.open_elems);
+ self.sink.add_attrs_if_missing(top, tag.attrs);
+ }
+ Done
+ }
+
+ <base> <basefont> <bgsound> <link> <meta> <noframes>
+ <script> <style> <template> <title> </template> => {
+ self.step(InHead, token)
+ }
+
+ tag @ <body> => {
+ self.unexpected(&tag);
+ match self.body_elem().cloned() {
+ Some(ref node) if self.open_elems.len() != 1 &&
+ !self.in_html_elem_named(local_name!("template")) => {
+ self.frameset_ok = false;
+ self.sink.add_attrs_if_missing(node, tag.attrs)
+ },
+ _ => {}
+ }
+ Done
+ }
+
+ tag @ <frameset> => {
+ self.unexpected(&tag);
+ if !self.frameset_ok { return Done; }
+
+ let body = unwrap_or_return!(self.body_elem(), Done).clone();
+ self.sink.remove_from_parent(&body);
+
+ // FIXME: can we get here in the fragment case?
+ // What to do with the first element then?
+ self.open_elems.truncate(1);
+ self.insert_element_for(tag);
+ self.mode = InFrameset;
+ Done
+ }
+
+ EOFToken => {
+ if !self.template_modes.is_empty() {
+ self.step(InTemplate, token)
+ } else {
+ self.check_body_end();
+ self.stop_parsing()
+ }
+ }
+
+ </body> => {
+ if self.in_scope_named(default_scope, local_name!("body")) {
+ self.check_body_end();
+ self.mode = AfterBody;
+ } else {
+ self.sink.parse_error(Borrowed("</body> with no <body> in scope"));
+ }
+ Done
+ }
+
+ </html> => {
+ if self.in_scope_named(default_scope, local_name!("body")) {
+ self.check_body_end();
+ Reprocess(AfterBody, token)
+ } else {
+ self.sink.parse_error(Borrowed("</html> with no <body> in scope"));
+ Done
+ }
+ }
+
+ tag @ <address> <article> <aside> <blockquote> <center> <details> <dialog>
+ <dir> <div> <dl> <fieldset> <figcaption> <figure> <footer> <header>
+ <hgroup> <main> <nav> <ol> <p> <section> <summary> <ul> => {
+ self.close_p_element_in_button_scope();
+ self.insert_element_for(tag);
+ Done
+ }
+
+ tag @ <menu> => {
+ self.close_p_element_in_button_scope();
+ self.insert_element_for(tag);
+ Done
+ }
+
+ tag @ <h1> <h2> <h3> <h4> <h5> <h6> => {
+ self.close_p_element_in_button_scope();
+ if self.current_node_in(heading_tag) {
+ self.sink.parse_error(Borrowed("nested heading tags"));
+ self.pop();
+ }
+ self.insert_element_for(tag);
+ Done
+ }
+
+ tag @ <pre> <listing> => {
+ self.close_p_element_in_button_scope();
+ self.insert_element_for(tag);
+ self.ignore_lf = true;
+ self.frameset_ok = false;
+ Done
+ }
+
+ tag @ <form> => {
+ if self.form_elem.is_some() &&
+ !self.in_html_elem_named(local_name!("template")) {
+ self.sink.parse_error(Borrowed("nested forms"));
+ } else {
+ self.close_p_element_in_button_scope();
+ let elem = self.insert_element_for(tag);
+ if !self.in_html_elem_named(local_name!("template")) {
+ self.form_elem = Some(elem);
+ }
+ }
+ Done
+ }
+
+ tag @ <li> <dd> <dt> => {
+ declare_tag_set!(close_list = "li");
+ declare_tag_set!(close_defn = "dd" "dt");
+ declare_tag_set!(extra_special = [special_tag] - "address" "div" "p");
+ let list = match tag.name {
+ local_name!("li") => true,
+ local_name!("dd") | local_name!("dt") => false,
+ _ => unreachable!(),
+ };
+
+ self.frameset_ok = false;
+
+ let mut to_close = None;
+ for node in self.open_elems.iter().rev() {
+ let name = self.sink.elem_name(node);
+ let can_close = if list {
+ close_list(name)
+ } else {
+ close_defn(name)
+ };
+ if can_close {
+ to_close = Some(name.local.clone());
+ break;
+ }
+ if extra_special(name) {
+ break;
+ }
+ }
+
+ match to_close {
+ Some(name) => {
+ self.generate_implied_end_except(name.clone());
+ self.expect_to_close(name);
+ }
+ None => (),
+ }
+
+ self.close_p_element_in_button_scope();
+ self.insert_element_for(tag);
+ Done
+ }
+
+ tag @ <plaintext> => {
+ self.close_p_element_in_button_scope();
+ self.insert_element_for(tag);
+ ToPlaintext
+ }
+
+ tag @ <button> => {
+ if self.in_scope_named(default_scope, local_name!("button")) {
+ self.sink.parse_error(Borrowed("nested buttons"));
+ self.generate_implied_end(cursory_implied_end);
+ self.pop_until_named(local_name!("button"));
+ }
+ self.reconstruct_formatting();
+ self.insert_element_for(tag);
+ self.frameset_ok = false;
+ Done
+ }
+
+ tag @ </address> </article> </aside> </blockquote> </button> </center>
+ </details> </dialog> </dir> </div> </dl> </fieldset> </figcaption>
+ </figure> </footer> </header> </hgroup> </listing> </main> </menu>
+ </nav> </ol> </pre> </section> </summary> </ul> => {
+ if !self.in_scope_named(default_scope, tag.name.clone()) {
+ self.unexpected(&tag);
+ } else {
+ self.generate_implied_end(cursory_implied_end);
+ self.expect_to_close(tag.name);
+ }
+ Done
+ }
+
+ </form> => {
+ if !self.in_html_elem_named(local_name!("template")) {
+ // Can't use unwrap_or_return!() due to rust-lang/rust#16617.
+ let node = match self.form_elem.take() {
+ None => {
+ self.sink.parse_error(Borrowed("Null form element pointer on </form>"));
+ return Done;
+ }
+ Some(x) => x,
+ };
+ if !self.in_scope(default_scope, |n| self.sink.same_node(&node, &n)) {
+ self.sink.parse_error(Borrowed("Form element not in scope on </form>"));
+ return Done;
+ }
+ self.generate_implied_end(cursory_implied_end);
+ let current = self.current_node().clone();
+ self.remove_from_stack(&node);
+ if !self.sink.same_node(&current, &node) {
+ self.sink.parse_error(Borrowed("Bad open element on </form>"));
+ }
+ } else {
+ if !self.in_scope_named(default_scope, local_name!("form")) {
+ self.sink.parse_error(Borrowed("Form element not in scope on </form>"));
+ return Done;
+ }
+ self.generate_implied_end(cursory_implied_end);
+ if !self.current_node_named(local_name!("form")) {
+ self.sink.parse_error(Borrowed("Bad open element on </form>"));
+ }
+ self.pop_until_named(local_name!("form"));
+ }
+ Done
+ }
+
+ </p> => {
+ if !self.in_scope_named(button_scope, local_name!("p")) {
+ self.sink.parse_error(Borrowed("No <p> tag to close"));
+ self.insert_phantom(local_name!("p"));
+ }
+ self.close_p_element();
+ Done
+ }
+
+ tag @ </li> </dd> </dt> => {
+ let in_scope = if tag.name == local_name!("li") {
+ self.in_scope_named(list_item_scope, tag.name.clone())
+ } else {
+ self.in_scope_named(default_scope, tag.name.clone())
+ };
+ if in_scope {
+ self.generate_implied_end_except(tag.name.clone());
+ self.expect_to_close(tag.name);
+ } else {
+ self.sink.parse_error(Borrowed("No matching tag to close"));
+ }
+ Done
+ }
+
+ tag @ </h1> </h2> </h3> </h4> </h5> </h6> => {
+ if self.in_scope(default_scope, |n| self.elem_in(&n, heading_tag)) {
+ self.generate_implied_end(cursory_implied_end);
+ if !self.current_node_named(tag.name) {
+ self.sink.parse_error(Borrowed("Closing wrong heading tag"));
+ }
+ self.pop_until(heading_tag);
+ } else {
+ self.sink.parse_error(Borrowed("No heading tag to close"));
+ }
+ Done
+ }
+
+ tag @ <a> => {
+ self.handle_misnested_a_tags(&tag);
+ self.reconstruct_formatting();
+ self.create_formatting_element_for(tag);
+ Done
+ }
+
+ tag @ <b> <big> <code> <em> <font> <i> <s> <small> <strike> <strong> <tt> <u> => {
+ self.reconstruct_formatting();
+ self.create_formatting_element_for(tag);
+ Done
+ }
+
+ tag @ <nobr> => {
+ self.reconstruct_formatting();
+ if self.in_scope_named(default_scope, local_name!("nobr")) {
+ self.sink.parse_error(Borrowed("Nested <nobr>"));
+ self.adoption_agency(local_name!("nobr"));
+ self.reconstruct_formatting();
+ }
+ self.create_formatting_element_for(tag);
+ Done
+ }
+
+ tag @ </a> </b> </big> </code> </em> </font> </i> </nobr>
+ </s> </small> </strike> </strong> </tt> </u> => {
+ self.adoption_agency(tag.name);
+ Done
+ }
+
+ tag @ <applet> <marquee> <object> => {
+ self.reconstruct_formatting();
+ self.insert_element_for(tag);
+ self.active_formatting.push(Marker);
+ self.frameset_ok = false;
+ Done
+ }
+
+ tag @ </applet> </marquee> </object> => {
+ if !self.in_scope_named(default_scope, tag.name.clone()) {
+ self.unexpected(&tag);
+ } else {
+ self.generate_implied_end(cursory_implied_end);
+ self.expect_to_close(tag.name);
+ self.clear_active_formatting_to_marker();
+ }
+ Done
+ }
+
+ tag @ <table> => {
+ if self.quirks_mode != Quirks {
+ self.close_p_element_in_button_scope();
+ }
+ self.insert_element_for(tag);
+ self.frameset_ok = false;
+ self.mode = InTable;
+ Done
+ }
+
+ tag @ </br> => {
+ self.unexpected(&tag);
+ self.step(InBody, TagToken(Tag {
+ kind: StartTag,
+ attrs: vec!(),
+ ..tag
+ }))
+ }
+
+ tag @ <area> <br> <embed> <img> <keygen> <wbr> <input> => {
+ let keep_frameset_ok = match tag.name {
+ local_name!("input") => self.is_type_hidden(&tag),
+ _ => false,
+ };
+ self.reconstruct_formatting();
+ self.insert_and_pop_element_for(tag);
+ if !keep_frameset_ok {
+ self.frameset_ok = false;
+ }
+ DoneAckSelfClosing
+ }
+
+ tag @ <param> <source> <track> => {
+ self.insert_and_pop_element_for(tag);
+ DoneAckSelfClosing
+ }
+
+ tag @ <hr> => {
+ self.close_p_element_in_button_scope();
+ self.insert_and_pop_element_for(tag);
+ self.frameset_ok = false;
+ DoneAckSelfClosing
+ }
+
+ tag @ <image> => {
+ self.unexpected(&tag);
+ self.step(InBody, TagToken(Tag {
+ name: local_name!("img"),
+ ..tag
+ }))
+ }
+
+ tag @ <textarea> => {
+ self.ignore_lf = true;
+ self.frameset_ok = false;
+ self.parse_raw_data(tag, Rcdata)
+ }
+
+ tag @ <xmp> => {
+ self.close_p_element_in_button_scope();
+ self.reconstruct_formatting();
+ self.frameset_ok = false;
+ self.parse_raw_data(tag, Rawtext)
+ }
+
+ tag @ <iframe> => {
+ self.frameset_ok = false;
+ self.parse_raw_data(tag, Rawtext)
+ }
+
+ tag @ <noembed> => {
+ self.parse_raw_data(tag, Rawtext)
+ }
+
+ // <noscript> handled in wildcard case below
+
+ tag @ <select> => {
+ self.reconstruct_formatting();
+ self.insert_element_for(tag);
+ self.frameset_ok = false;
+ // NB: mode == InBody but possibly self.mode != mode, if
+ // we're processing "as in the rules for InBody".
+ self.mode = match self.mode {
+ InTable | InCaption | InTableBody
+ | InRow | InCell => InSelectInTable,
+ _ => InSelect,
+ };
+ Done
+ }
+
+ tag @ <optgroup> <option> => {
+ if self.current_node_named(local_name!("option")) {
+ self.pop();
+ }
+ self.reconstruct_formatting();
+ self.insert_element_for(tag);
+ Done
+ }
+
+ tag @ <rb> <rtc> => {
+ if self.in_scope_named(default_scope, local_name!("ruby")) {
+ self.generate_implied_end(cursory_implied_end);
+ }
+ if !self.current_node_named(local_name!("ruby")) {
+ self.unexpected(&tag);
+ }
+ self.insert_element_for(tag);
+ Done
+ }
+
+ tag @ <rp> <rt> => {
+ if self.in_scope_named(default_scope, local_name!("ruby")) {
+ self.generate_implied_end_except(local_name!("rtc"));
+ }
+ if !self.current_node_named(local_name!("rtc")) && !self.current_node_named(local_name!("ruby")) {
+ self.unexpected(&tag);
+ }
+ self.insert_element_for(tag);
+ Done
+ }
+
+ tag @ <math> => self.enter_foreign(tag, ns!(mathml)),
+
+ tag @ <svg> => self.enter_foreign(tag, ns!(svg)),
+
+ <caption> <col> <colgroup> <frame> <head>
+ <tbody> <td> <tfoot> <th> <thead> <tr> => {
+ self.unexpected(&token);
+ Done
+ }
+
+ tag @ <_> => {
+ if self.opts.scripting_enabled && tag.name == local_name!("noscript") {
+ self.parse_raw_data(tag, Rawtext)
+ } else {
+ self.reconstruct_formatting();
+ self.insert_element_for(tag);
+ Done
+ }
+ }
+
+ tag @ </_> => {
+ self.process_end_tag_in_body(tag);
+ Done
+ }
+
+ // FIXME: This should be unreachable, but match_token requires a
+ // catch-all case.
+ _ => panic!("impossible case in InBody mode"),
+ }),
+
+ //§ parsing-main-incdata
+ Text => match_token!(token {
+ CharacterTokens(_, text) => self.append_text(text),
+
+ EOFToken => {
+ self.unexpected(&token);
+ if self.current_node_named(local_name!("script")) {
+ let current = current_node(&self.open_elems);
+ self.sink.mark_script_already_started(current);
+ }
+ self.pop();
+ Reprocess(self.orig_mode.take().unwrap(), token)
+ }
+
+ tag @ </_> => {
+ let node = self.pop();
+ self.mode = self.orig_mode.take().unwrap();
+ if tag.name == local_name!("script") {
+ return Script(node);
+ }
+ Done
+ }
+
+ // The spec doesn't say what to do here.
+ // Other tokens are impossible?
+ _ => panic!("impossible case in Text mode"),
+ }),
+
+ //§ parsing-main-intable
+ InTable => match_token!(token {
+ // FIXME: hack, should implement pat | pat for match_token instead
+ NullCharacterToken => self.process_chars_in_table(token),
+
+ CharacterTokens(..) => self.process_chars_in_table(token),
+
+ CommentToken(text) => self.append_comment(text),
+
+ tag @ <caption> => {
+ self.pop_until_current(table_scope);
+ self.active_formatting.push(Marker);
+ self.insert_element_for(tag);
+ self.mode = InCaption;
+ Done
+ }
+
+ tag @ <colgroup> => {
+ self.pop_until_current(table_scope);
+ self.insert_element_for(tag);
+ self.mode = InColumnGroup;
+ Done
+ }
+
+ <col> => {
+ self.pop_until_current(table_scope);
+ self.insert_phantom(local_name!("colgroup"));
+ Reprocess(InColumnGroup, token)
+ }
+
+ tag @ <tbody> <tfoot> <thead> => {
+ self.pop_until_current(table_scope);
+ self.insert_element_for(tag);
+ self.mode = InTableBody;
+ Done
+ }
+
+ <td> <th> <tr> => {
+ self.pop_until_current(table_scope);
+ self.insert_phantom(local_name!("tbody"));
+ Reprocess(InTableBody, token)
+ }
+
+ <table> => {
+ self.unexpected(&token);
+ if self.in_scope_named(table_scope, local_name!("table")) {
+ self.pop_until_named(local_name!("table"));
+ Reprocess(self.reset_insertion_mode(), token)
+ } else {
+ Done
+ }
+ }
+
+ </table> => {
+ if self.in_scope_named(table_scope, local_name!("table")) {
+ self.pop_until_named(local_name!("table"));
+ self.mode = self.reset_insertion_mode();
+ } else {
+ self.unexpected(&token);
+ }
+ Done
+ }
+
+ </body> </caption> </col> </colgroup> </html>
+ </tbody> </td> </tfoot> </th> </thead> </tr> =>
+ self.unexpected(&token),
+
+ <style> <script> <template> </template>
+ => self.step(InHead, token),
+
+ tag @ <input> => {
+ self.unexpected(&tag);
+ if self.is_type_hidden(&tag) {
+ self.insert_and_pop_element_for(tag);
+ DoneAckSelfClosing
+ } else {
+ self.foster_parent_in_body(TagToken(tag))
+ }
+ }
+
+ tag @ <form> => {
+ self.unexpected(&tag);
+ if !self.in_html_elem_named(local_name!("template")) && self.form_elem.is_none() {
+ self.form_elem = Some(self.insert_and_pop_element_for(tag));
+ }
+ Done
+ }
+
+ EOFToken => self.step(InBody, token),
+
+ token => {
+ self.unexpected(&token);
+ self.foster_parent_in_body(token)
+ }
+ }),
+
+ //§ parsing-main-intabletext
+ InTableText => match_token!(token {
+ NullCharacterToken => self.unexpected(&token),
+
+ CharacterTokens(split, text) => {
+ self.pending_table_text.push((split, text));
+ Done
+ }
+
+ token => {
+ let pending = replace(&mut self.pending_table_text, vec!());
+ let contains_nonspace = pending.iter().any(|&(split, ref text)| {
+ match split {
+ Whitespace => false,
+ NotWhitespace => true,
+ NotSplit => any_not_whitespace(text),
+ }
+ });
+
+ if contains_nonspace {
+ self.sink.parse_error(Borrowed("Non-space table text"));
+ for (split, text) in pending.into_iter() {
+ match self.foster_parent_in_body(CharacterTokens(split, text)) {
+ Done => (),
+ _ => panic!("not prepared to handle this!"),
+ }
+ }
+ } else {
+ for (_, text) in pending.into_iter() {
+ self.append_text(text);
+ }
+ }
+
+ Reprocess(self.orig_mode.take().unwrap(), token)
+ }
+ }),
+
+ //§ parsing-main-incaption
+ InCaption => match_token!(token {
+ tag @ <caption> <col> <colgroup> <tbody> <td> <tfoot>
+ <th> <thead> <tr> </table> </caption> => {
+ if self.in_scope_named(table_scope, local_name!("caption")) {
+ self.generate_implied_end(cursory_implied_end);
+ self.expect_to_close(local_name!("caption"));
+ self.clear_active_formatting_to_marker();
+ match tag {
+ Tag { kind: EndTag, name: local_name!("caption"), .. } => {
+ self.mode = InTable;
+ Done
+ }
+ _ => Reprocess(InTable, TagToken(tag))
+ }
+ } else {
+ self.unexpected(&tag);
+ Done
+ }
+ }
+
+ </body> </col> </colgroup> </html> </tbody>
+ </td> </tfoot> </th> </thead> </tr> => self.unexpected(&token),
+
+ token => self.step(InBody, token),
+ }),
+
+ //§ parsing-main-incolgroup
+ InColumnGroup => match_token!(token {
+ CharacterTokens(NotSplit, text) => SplitWhitespace(text),
+ CharacterTokens(Whitespace, text) => self.append_text(text),
+ CommentToken(text) => self.append_comment(text),
+
+ <html> => self.step(InBody, token),
+
+ tag @ <col> => {
+ self.insert_and_pop_element_for(tag);
+ DoneAckSelfClosing
+ }
+
+ </colgroup> => {
+ if self.current_node_named(local_name!("colgroup")) {
+ self.pop();
+ self.mode = InTable;
+ } else {
+ self.unexpected(&token);
+ }
+ Done
+ }
+
+ </col> => self.unexpected(&token),
+
+ <template> </template> => self.step(InHead, token),
+
+ EOFToken => self.step(InBody, token),
+
+ token => {
+ if self.current_node_named(local_name!("colgroup")) {
+ self.pop();
+ Reprocess(InTable, token)
+ } else {
+ self.unexpected(&token)
+ }
+ }
+ }),
+
+ //§ parsing-main-intbody
+ InTableBody => match_token!(token {
+ tag @ <tr> => {
+ self.pop_until_current(table_body_context);
+ self.insert_element_for(tag);
+ self.mode = InRow;
+ Done
+ }
+
+ <th> <td> => {
+ self.unexpected(&token);
+ self.pop_until_current(table_body_context);
+ self.insert_phantom(local_name!("tr"));
+ Reprocess(InRow, token)
+ }
+
+ tag @ </tbody> </tfoot> </thead> => {
+ if self.in_scope_named(table_scope, tag.name.clone()) {
+ self.pop_until_current(table_body_context);
+ self.pop();
+ self.mode = InTable;
+ } else {
+ self.unexpected(&tag);
+ }
+ Done
+ }
+
+ <caption> <col> <colgroup> <tbody> <tfoot> <thead> </table> => {
+ declare_tag_set!(table_outer = "table" "tbody" "tfoot");
+ if self.in_scope(table_scope, |e| self.elem_in(&e, table_outer)) {
+ self.pop_until_current(table_body_context);
+ self.pop();
+ Reprocess(InTable, token)
+ } else {
+ self.unexpected(&token)
+ }
+ }
+
+ </body> </caption> </col> </colgroup> </html> </td> </th> </tr>
+ => self.unexpected(&token),
+
+ token => self.step(InTable, token),
+ }),
+
+ //§ parsing-main-intr
+ InRow => match_token!(token {
+ tag @ <th> <td> => {
+ self.pop_until_current(table_row_context);
+ self.insert_element_for(tag);
+ self.mode = InCell;
+ self.active_formatting.push(Marker);
+ Done
+ }
+
+ </tr> => {
+ if self.in_scope_named(table_scope, local_name!("tr")) {
+ self.pop_until_current(table_row_context);
+ let node = self.pop();
+ self.assert_named(&node, local_name!("tr"));
+ self.mode = InTableBody;
+ } else {
+ self.unexpected(&token);
+ }
+ Done
+ }
+
+ <caption> <col> <colgroup> <tbody> <tfoot> <thead> <tr> </table> => {
+ if self.in_scope_named(table_scope, local_name!("tr")) {
+ self.pop_until_current(table_row_context);
+ let node = self.pop();
+ self.assert_named(&node, local_name!("tr"));
+ Reprocess(InTableBody, token)
+ } else {
+ self.unexpected(&token)
+ }
+ }
+
+ tag @ </tbody> </tfoot> </thead> => {
+ if self.in_scope_named(table_scope, tag.name.clone()) {
+ if self.in_scope_named(table_scope, local_name!("tr")) {
+ self.pop_until_current(table_row_context);
+ let node = self.pop();
+ self.assert_named(&node, local_name!("tr"));
+ Reprocess(InTableBody, TagToken(tag))
+ } else {
+ Done
+ }
+ } else {
+ self.unexpected(&tag)
+ }
+ }
+
+ </body> </caption> </col> </colgroup> </html> </td> </th>
+ => self.unexpected(&token),
+
+ token => self.step(InTable, token),
+ }),
+
+ //§ parsing-main-intd
+ InCell => match_token!(token {
+ tag @ </td> </th> => {
+ if self.in_scope_named(table_scope, tag.name.clone()) {
+ self.generate_implied_end(cursory_implied_end);
+ self.expect_to_close(tag.name);
+ self.clear_active_formatting_to_marker();
+ self.mode = InRow;
+ } else {
+ self.unexpected(&tag);
+ }
+ Done
+ }
+
+ <caption> <col> <colgroup> <tbody> <td> <tfoot> <th> <thead> <tr> => {
+ if self.in_scope(table_scope, |n| self.elem_in(&n, td_th)) {
+ self.close_the_cell();
+ Reprocess(InRow, token)
+ } else {
+ self.unexpected(&token)
+ }
+ }
+
+ </body> </caption> </col> </colgroup> </html>
+ => self.unexpected(&token),
+
+ tag @ </table> </tbody> </tfoot> </thead> </tr> => {
+ if self.in_scope_named(table_scope, tag.name.clone()) {
+ self.close_the_cell();
+ Reprocess(InRow, TagToken(tag))
+ } else {
+ self.unexpected(&tag)
+ }
+ }
+
+ token => self.step(InBody, token),
+ }),
+
+ //§ parsing-main-inselect
+ InSelect => match_token!(token {
+ NullCharacterToken => self.unexpected(&token),
+ CharacterTokens(_, text) => self.append_text(text),
+ CommentToken(text) => self.append_comment(text),
+
+ <html> => self.step(InBody, token),
+
+ tag @ <option> => {
+ if self.current_node_named(local_name!("option")) {
+ self.pop();
+ }
+ self.insert_element_for(tag);
+ Done
+ }
+
+ tag @ <optgroup> => {
+ if self.current_node_named(local_name!("option")) {
+ self.pop();
+ }
+ if self.current_node_named(local_name!("optgroup")) {
+ self.pop();
+ }
+ self.insert_element_for(tag);
+ Done
+ }
+
+ </optgroup> => {
+ if self.open_elems.len() >= 2
+ && self.current_node_named(local_name!("option"))
+ && self.html_elem_named(&self.open_elems[self.open_elems.len() - 2],
+ local_name!("optgroup")) {
+ self.pop();
+ }
+ if self.current_node_named(local_name!("optgroup")) {
+ self.pop();
+ } else {
+ self.unexpected(&token);
+ }
+ Done
+ }
+
+ </option> => {
+ if self.current_node_named(local_name!("option")) {
+ self.pop();
+ } else {
+ self.unexpected(&token);
+ }
+ Done
+ }
+
+ tag @ <select> </select> => {
+ let in_scope = self.in_scope_named(select_scope, local_name!("select"));
+
+ if !in_scope || tag.kind == StartTag {
+ self.unexpected(&tag);
+ }
+
+ if in_scope {
+ self.pop_until_named(local_name!("select"));
+ self.mode = self.reset_insertion_mode();
+ }
+ Done
+ }
+
+ <input> <keygen> <textarea> => {
+ self.unexpected(&token);
+ if self.in_scope_named(select_scope, local_name!("select")) {
+ self.pop_until_named(local_name!("select"));
+ Reprocess(self.reset_insertion_mode(), token)
+ } else {
+ Done
+ }
+ }
+
+ <script> <template> </template> => self.step(InHead, token),
+
+ EOFToken => self.step(InBody, token),
+
+ token => self.unexpected(&token),
+ }),
+
+ //§ parsing-main-inselectintable
+ InSelectInTable => match_token!(token {
+ <caption> <table> <tbody> <tfoot> <thead> <tr> <td> <th> => {
+ self.unexpected(&token);
+ self.pop_until_named(local_name!("select"));
+ Reprocess(self.reset_insertion_mode(), token)
+ }
+
+ tag @ </caption> </table> </tbody> </tfoot> </thead> </tr> </td> </th> => {
+ self.unexpected(&tag);
+ if self.in_scope_named(table_scope, tag.name.clone()) {
+ self.pop_until_named(local_name!("select"));
+ Reprocess(self.reset_insertion_mode(), TagToken(tag))
+ } else {
+ Done
+ }
+ }
+
+ token => self.step(InSelect, token),
+ }),
+
+ //§ parsing-main-intemplate
+ InTemplate => match_token!(token {
+ CharacterTokens(_, _) => self.step(InBody, token),
+ CommentToken(_) => self.step(InBody, token),
+
+ <base> <basefont> <bgsound> <link> <meta> <noframes> <script>
+ <style> <template> <title> </template> => {
+ self.step(InHead, token)
+ }
+
+ <caption> <colgroup> <tbody> <tfoot> <thead> => {
+ self.template_modes.pop();
+ self.template_modes.push(InTable);
+ Reprocess(InTable, token)
+ }
+
+ <col> => {
+ self.template_modes.pop();
+ self.template_modes.push(InColumnGroup);
+ Reprocess(InColumnGroup, token)
+ }
+
+ <tr> => {
+ self.template_modes.pop();
+ self.template_modes.push(InTableBody);
+ Reprocess(InTableBody, token)
+ }
+
+ <td> <th> => {
+ self.template_modes.pop();
+ self.template_modes.push(InRow);
+ Reprocess(InRow, token)
+ }
+
+ EOFToken => {
+ if !self.in_html_elem_named(local_name!("template")) {
+ self.stop_parsing()
+ } else {
+ self.unexpected(&token);
+ self.pop_until_named(local_name!("template"));
+ self.clear_active_formatting_to_marker();
+ self.template_modes.pop();
+ self.mode = self.reset_insertion_mode();
+ Reprocess(self.reset_insertion_mode(), token)
+ }
+ }
+
+ tag @ <_> => {
+ self.template_modes.pop();
+ self.template_modes.push(InBody);
+ Reprocess(InBody, TagToken(tag))
+ }
+
+ token => self.unexpected(&token),
+ }),
+
+ //§ parsing-main-afterbody
+ AfterBody => match_token!(token {
+ CharacterTokens(NotSplit, text) => SplitWhitespace(text),
+ CharacterTokens(Whitespace, _) => self.step(InBody, token),
+ CommentToken(text) => self.append_comment_to_html(text),
+
+ <html> => self.step(InBody, token),
+
+ </html> => {
+ if self.is_fragment() {
+ self.unexpected(&token);
+ } else {
+ self.mode = AfterAfterBody;
+ }
+ Done
+ }
+
+ EOFToken => self.stop_parsing(),
+
+ token => {
+ self.unexpected(&token);
+ Reprocess(InBody, token)
+ }
+ }),
+
+ //§ parsing-main-inframeset
+ InFrameset => match_token!(token {
+ CharacterTokens(NotSplit, text) => SplitWhitespace(text),
+ CharacterTokens(Whitespace, text) => self.append_text(text),
+ CommentToken(text) => self.append_comment(text),
+
+ <html> => self.step(InBody, token),
+
+ tag @ <frameset> => {
+ self.insert_element_for(tag);
+ Done
+ }
+
+ </frameset> => {
+ if self.open_elems.len() == 1 {
+ self.unexpected(&token);
+ } else {
+ self.pop();
+ if !self.is_fragment() && !self.current_node_named(local_name!("frameset")) {
+ self.mode = AfterFrameset;
+ }
+ }
+ Done
+ }
+
+ tag @ <frame> => {
+ self.insert_and_pop_element_for(tag);
+ DoneAckSelfClosing
+ }
+
+ <noframes> => self.step(InHead, token),
+
+ EOFToken => {
+ if self.open_elems.len() != 1 {
+ self.unexpected(&token);
+ }
+ self.stop_parsing()
+ }
+
+ token => self.unexpected(&token),
+ }),
+
+ //§ parsing-main-afterframeset
+ AfterFrameset => match_token!(token {
+ CharacterTokens(NotSplit, text) => SplitWhitespace(text),
+ CharacterTokens(Whitespace, text) => self.append_text(text),
+ CommentToken(text) => self.append_comment(text),
+
+ <html> => self.step(InBody, token),
+
+ </html> => {
+ self.mode = AfterAfterFrameset;
+ Done
+ }
+
+ <noframes> => self.step(InHead, token),
+
+ EOFToken => self.stop_parsing(),
+
+ token => self.unexpected(&token),
+ }),
+
+ //§ the-after-after-body-insertion-mode
+ AfterAfterBody => match_token!(token {
+ CharacterTokens(NotSplit, text) => SplitWhitespace(text),
+ CharacterTokens(Whitespace, _) => self.step(InBody, token),
+ CommentToken(text) => self.append_comment_to_doc(text),
+
+ <html> => self.step(InBody, token),
+
+ EOFToken => self.stop_parsing(),
+
+ token => {
+ self.unexpected(&token);
+ Reprocess(InBody, token)
+ }
+ }),
+
+ //§ the-after-after-frameset-insertion-mode
+ AfterAfterFrameset => match_token!(token {
+ CharacterTokens(NotSplit, text) => SplitWhitespace(text),
+ CharacterTokens(Whitespace, _) => self.step(InBody, token),
+ CommentToken(text) => self.append_comment_to_doc(text),
+
+ <html> => self.step(InBody, token),
+
+ EOFToken => self.stop_parsing(),
+
+ <noframes> => self.step(InHead, token),
+
+ token => self.unexpected(&token),
+ }),
+ //§ END
+ }
+ }
+
+ fn step_foreign(&mut self, token: Token) -> ProcessResult<Handle> {
+ match_token!(token {
+ NullCharacterToken => {
+ self.unexpected(&token);
+ self.append_text("\u{fffd}".to_tendril())
+ }
+
+ CharacterTokens(_, text) => {
+ if any_not_whitespace(&text) {
+ self.frameset_ok = false;
+ }
+ self.append_text(text)
+ }
+
+ CommentToken(text) => self.append_comment(text),
+
+ tag @ <b> <big> <blockquote> <body> <br> <center> <code> <dd> <div> <dl>
+ <dt> <em> <embed> <h1> <h2> <h3> <h4> <h5> <h6> <head> <hr> <i>
+ <img> <li> <listing> <menu> <meta> <nobr> <ol> <p> <pre> <ruby>
+ <s> <small> <span> <strong> <strike> <sub> <sup> <table> <tt>
+ <u> <ul> <var> => self.unexpected_start_tag_in_foreign_content(tag),
+
+ tag @ <font> => {
+ let unexpected = tag.attrs.iter().any(|attr| {
+ matches!(attr.name.expanded(),
+ expanded_name!("", "color") |
+ expanded_name!("", "face") |
+ expanded_name!("", "size"))
+ });
+ if unexpected {
+ self.unexpected_start_tag_in_foreign_content(tag)
+ } else {
+ self.foreign_start_tag(tag)
+ }
+ }
+
+ tag @ <_> => self.foreign_start_tag(tag),
+
+ // FIXME(#118): </script> in SVG
+
+ tag @ </_> => {
+ let mut first = true;
+ let mut stack_idx = self.open_elems.len() - 1;
+ loop {
+ if stack_idx == 0 {
+ return Done;
+ }
+
+ let html;
+ let eq;
+ {
+ let node_name = self.sink.elem_name(&self.open_elems[stack_idx]);
+ html = *node_name.ns == ns!(html);
+ eq = node_name.local.eq_ignore_ascii_case(&tag.name);
+ }
+ if !first && html {
+ let mode = self.mode;
+ return self.step(mode, TagToken(tag));
+ }
+
+ if eq {
+ self.open_elems.truncate(stack_idx);
+ return Done;
+ }
+
+ if first {
+ self.unexpected(&tag);
+ first = false;
+ }
+ stack_idx -= 1;
+ }
+ }
+
+ // FIXME: This should be unreachable, but match_token requires a
+ // catch-all case.
+ _ => panic!("impossible case in foreign content"),
+ })
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 07:25:34 +0000