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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-21 11:44:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-21 11:44:51 +0000
commit9e3c08db40b8916968b9f30096c7be3f00ce9647 (patch)
treea68f146d7fa01f0134297619fbe7e33db084e0aa /parser/htmlparser/nsElementTable.cpp
parentInitial commit. (diff)
downloadthunderbird-upstream.tar.xz
thunderbird-upstream.zip
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'parser/htmlparser/nsElementTable.cpp')
-rw-r--r--parser/htmlparser/nsElementTable.cpp205
1 files changed, 205 insertions, 0 deletions
diff --git a/parser/htmlparser/nsElementTable.cpp b/parser/htmlparser/nsElementTable.cpp
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+++ b/parser/htmlparser/nsElementTable.cpp
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsElementTable.h"
+
+struct HTMLElement {
+#ifdef DEBUG
+ nsHTMLTag mTagID;
+#endif
+ bool mIsBlock;
+ bool mIsContainer;
+};
+
+#ifdef DEBUG
+# define ELEM(tag, block, container) {eHTMLTag_##tag, block, container},
+#else
+# define ELEM(tag, block, container) {block, container},
+#endif
+
+#define ____ false // This makes the table easier to read.
+
+// Note that the mIsBlock field disagrees with
+// https://developer.mozilla.org/en-US/docs/Web/HTML/Block-level_elements for
+// the following elements: center, details, dialog, dir, dt, figcaption,
+// listing, menu, multicol, noscript, output, summary, tfoot, video.
+//
+// mrbkap thinks that the field values were pulled from the old HTML4 DTD and
+// then got modified in mostly random ways to make the old parser's behavior
+// compatible with the web. So it might make sense to change the mIsBlock
+// values for the abovementioned tags at some point.
+//
+static const HTMLElement gHTMLElements[] = {
+ // clang-format off
+ ELEM(unknown, ____, ____)
+ ELEM(a, ____, true)
+ ELEM(abbr, ____, true)
+ ELEM(acronym, ____, true)
+ ELEM(address, true, true)
+ ELEM(applet, ____, true)
+ ELEM(area, ____, ____)
+ ELEM(article, true, true)
+ ELEM(aside, true, true)
+ ELEM(audio, ____, true)
+ ELEM(b, ____, true)
+ ELEM(base, ____, ____)
+ ELEM(basefont, ____, ____)
+ ELEM(bdi, ____, true)
+ ELEM(bdo, ____, true)
+ ELEM(bgsound, ____, ____)
+ ELEM(big, ____, true)
+ ELEM(blockquote, true, true)
+ ELEM(body, ____, true)
+ ELEM(br, ____, ____)
+ ELEM(button, ____, true)
+ ELEM(canvas, ____, true)
+ ELEM(caption, ____, true)
+ ELEM(center, true, true)
+ ELEM(cite, ____, true)
+ ELEM(code, ____, true)
+ ELEM(col, ____, ____)
+ ELEM(colgroup, ____, true)
+ ELEM(data, ____, true)
+ ELEM(datalist, ____, true)
+ ELEM(dd, ____, true)
+ ELEM(del, ____, true)
+ ELEM(details, true, true)
+ ELEM(dfn, ____, true)
+ ELEM(dialog, true, true)
+ ELEM(dir, true, true)
+ ELEM(div, true, true)
+ ELEM(dl, true, true)
+ ELEM(dt, ____, true)
+ ELEM(em, ____, true)
+ ELEM(embed, ____, ____)
+ ELEM(fieldset, true, true)
+ ELEM(figcaption, ____, true)
+ ELEM(figure, true, true)
+ ELEM(font, ____, true)
+ ELEM(footer, true, true)
+ ELEM(form, true, true)
+ ELEM(frame, ____, ____)
+ ELEM(frameset, ____, true)
+ ELEM(h1, true, true)
+ ELEM(h2, true, true)
+ ELEM(h3, true, true)
+ ELEM(h4, true, true)
+ ELEM(h5, true, true)
+ ELEM(h6, true, true)
+ ELEM(head, ____, true)
+ ELEM(header, true, true)
+ ELEM(hgroup, true, true)
+ ELEM(hr, true, ____)
+ ELEM(html, ____, true)
+ ELEM(i, ____, true)
+ ELEM(iframe, ____, true)
+ ELEM(image, ____, ____)
+ ELEM(img, ____, ____)
+ ELEM(input, ____, ____)
+ ELEM(ins, ____, true)
+ ELEM(kbd, ____, true)
+ ELEM(keygen, ____, ____)
+ ELEM(label, ____, true)
+ ELEM(legend, ____, true)
+ ELEM(li, true, true)
+ ELEM(link, ____, ____)
+ ELEM(listing, true, true)
+ ELEM(main, true, true)
+ ELEM(map, ____, true)
+ ELEM(mark, ____, true)
+ ELEM(marquee, ____, true)
+ ELEM(menu, true, true)
+ ELEM(meta, ____, ____)
+ ELEM(meter, ____, true)
+ ELEM(multicol, true, true)
+ ELEM(nav, true, true)
+ ELEM(nobr, ____, true)
+ ELEM(noembed, ____, true)
+ ELEM(noframes, ____, true)
+ ELEM(noscript, ____, true)
+ ELEM(object, ____, true)
+ ELEM(ol, true, true)
+ ELEM(optgroup, ____, true)
+ ELEM(option, ____, true)
+ ELEM(output, ____, true)
+ ELEM(p, true, true)
+ ELEM(param, ____, ____)
+ ELEM(picture, ____, true)
+ ELEM(plaintext, ____, true)
+ ELEM(pre, true, true)
+ ELEM(progress, ____, true)
+ ELEM(q, ____, true)
+ ELEM(rb, ____, true)
+ ELEM(rp, ____, true)
+ ELEM(rt, ____, true)
+ ELEM(rtc, ____, true)
+ ELEM(ruby, ____, true)
+ ELEM(s, ____, true)
+ ELEM(samp, ____, true)
+ ELEM(script, ____, true)
+ ELEM(section, true, true)
+ ELEM(select, ____, true)
+ ELEM(small, ____, true)
+ ELEM(slot, ____, true)
+ ELEM(source, ____, ____)
+ ELEM(span, ____, true)
+ ELEM(strike, ____, true)
+ ELEM(strong, ____, true)
+ ELEM(style, ____, true)
+ ELEM(sub, ____, true)
+ ELEM(summary, true, true)
+ ELEM(sup, ____, true)
+ ELEM(table, true, true)
+ ELEM(tbody, ____, true)
+ ELEM(td, ____, true)
+ ELEM(textarea, ____, true)
+ ELEM(tfoot, ____, true)
+ ELEM(th, ____, true)
+ ELEM(thead, ____, true)
+ ELEM(template, ____, true)
+ ELEM(time, ____, true)
+ ELEM(title, ____, true)
+ ELEM(tr, ____, true)
+ ELEM(track, ____, ____)
+ ELEM(tt, ____, true)
+ ELEM(u, ____, true)
+ ELEM(ul, true, true)
+ ELEM(var, ____, true)
+ ELEM(video, ____, true)
+ ELEM(wbr, ____, ____)
+ ELEM(xmp, ____, true)
+ ELEM(text, ____, ____)
+ ELEM(whitespace, ____, ____)
+ ELEM(newline, ____, ____)
+ ELEM(comment, ____, true)
+ ELEM(entity, ____, true)
+ ELEM(doctypeDecl, ____, true)
+ ELEM(markupDecl, ____, true)
+ ELEM(instruction, ____, true)
+ ELEM(userdefined, ____, true)
+ // clang-format on
+};
+
+#undef ELEM
+#undef ____
+
+bool nsHTMLElement::IsContainer(nsHTMLTag aId) {
+ return gHTMLElements[aId].mIsContainer;
+}
+
+bool nsHTMLElement::IsBlock(nsHTMLTag aId) {
+ return gHTMLElements[aId].mIsBlock;
+}
+
+#ifdef DEBUG
+void CheckElementTable() {
+ for (nsHTMLTag t = eHTMLTag_unknown; t <= eHTMLTag_userdefined;
+ t = nsHTMLTag(t + 1)) {
+ MOZ_ASSERT(gHTMLElements[t].mTagID == t,
+ "gHTMLElements entries does match tag list.");
+ }
+}
+#endif