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Diffstat (limited to 'vendor/html5ever/src/tree_builder/tag_sets.rs')
| -rw-r--r-- | vendor/html5ever/src/tree_builder/tag_sets.rs | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/vendor/html5ever/src/tree_builder/tag_sets.rs b/vendor/html5ever/src/tree_builder/tag_sets.rs new file mode 100644 index 000000000..377b34cee --- /dev/null +++ b/vendor/html5ever/src/tree_builder/tag_sets.rs @@ -0,0 +1,115 @@ +// 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. + +//! Various sets of HTML tag names, and macros for declaring them. + +use crate::ExpandedName; +use mac::{_tt_as_expr_hack, matches}; +use markup5ever::{expanded_name, local_name, namespace_prefix, namespace_url, ns}; + +macro_rules! declare_tag_set_impl ( ($param:ident, $b:ident, $supr:ident, $($tag:tt)+) => ( + match $param { + $( expanded_name!(html $tag) => $b, )+ + p => $supr(p), + } +)); + +macro_rules! declare_tag_set_body ( + ($param:ident = [$supr:ident] - $($tag:tt)+) + => ( declare_tag_set_impl!($param, false, $supr, $($tag)+) ); + + ($param:ident = [$supr:ident] + $($tag:tt)+) + => ( declare_tag_set_impl!($param, true, $supr, $($tag)+) ); + + ($param:ident = $($tag:tt)+) + => ( declare_tag_set_impl!($param, true, empty_set, $($tag)+) ); +); + +macro_rules! declare_tag_set ( + (pub $name:ident = $($toks:tt)+) => ( + pub fn $name(p: crate::ExpandedName) -> bool { + declare_tag_set_body!(p = $($toks)+) + } + ); + + ($name:ident = $($toks:tt)+) => ( + fn $name(p: crate::ExpandedName) -> bool { + declare_tag_set_body!(p = $($toks)+) + } + ); +); + +#[inline(always)] +pub fn empty_set(_: ExpandedName) -> bool { + false +} +#[inline(always)] +pub fn full_set(_: ExpandedName) -> bool { + true +} + +declare_tag_set!(pub html_default_scope = + "applet" "caption" "html" "table" "td" "th" "marquee" "object" "template"); + +#[inline(always)] +pub fn default_scope(name: ExpandedName) -> bool { + html_default_scope(name) || + mathml_text_integration_point(name) || + svg_html_integration_point(name) +} + +declare_tag_set!(pub list_item_scope = [default_scope] + "ol" "ul"); +declare_tag_set!(pub button_scope = [default_scope] + "button"); +declare_tag_set!(pub table_scope = "html" "table" "template"); +declare_tag_set!(pub select_scope = [full_set] - "optgroup" "option"); + +declare_tag_set!(pub table_body_context = "tbody" "tfoot" "thead" "template" "html"); +declare_tag_set!(pub table_row_context = "tr" "template" "html"); +declare_tag_set!(pub td_th = "td" "th"); + +declare_tag_set!(pub cursory_implied_end = + "dd" "dt" "li" "option" "optgroup" "p" "rb" "rp" "rt" "rtc"); + +declare_tag_set!(pub thorough_implied_end = [cursory_implied_end] + + "caption" "colgroup" "tbody" "td" "tfoot" "th" "thead" "tr"); + +declare_tag_set!(pub heading_tag = "h1" "h2" "h3" "h4" "h5" "h6"); + +declare_tag_set!(pub special_tag = + "address" "applet" "area" "article" "aside" "base" "basefont" "bgsound" "blockquote" "body" + "br" "button" "caption" "center" "col" "colgroup" "dd" "details" "dir" "div" "dl" "dt" "embed" + "fieldset" "figcaption" "figure" "footer" "form" "frame" "frameset" "h1" "h2" "h3" "h4" "h5" + "h6" "head" "header" "hgroup" "hr" "html" "iframe" "img" "input" "isindex" "li" "link" + "listing" "main" "marquee" "menu" "meta" "nav" "noembed" "noframes" "noscript" + "object" "ol" "p" "param" "plaintext" "pre" "script" "section" "select" "source" "style" + "summary" "table" "tbody" "td" "template" "textarea" "tfoot" "th" "thead" "title" "tr" "track" + "ul" "wbr" "xmp"); +//ยง END + +pub fn mathml_text_integration_point(p: ExpandedName) -> bool { + matches!( + p, + expanded_name!(mathml "mi") | + expanded_name!(mathml "mo") | + expanded_name!(mathml "mn") | + expanded_name!(mathml "ms") | + expanded_name!(mathml "mtext") + ) +} + +/// https://html.spec.whatwg.org/multipage/#html-integration-point +pub fn svg_html_integration_point(p: ExpandedName) -> bool { + // annotation-xml are handle in another place + matches!( + p, + expanded_name!(svg "foreignObject") | + expanded_name!(svg "desc") | + expanded_name!(svg "title") + ) +} |