Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 4676 insertions, 0 deletions

diff --git a/parser/html/nsHtml5Tokenizer.cpp b/parser/html/nsHtml5Tokenizer.cpp
new file mode 100644
index 0000000000..64e65cc0b4
--- /dev/null
+++ b/parser/html/nsHtml5Tokenizer.cpp
@@ -0,0 +1,4676 @@
+/*
+ * Copyright (c) 2005-2007 Henri Sivonen
+ * Copyright (c) 2007-2017 Mozilla Foundation
+ * Portions of comments Copyright 2004-2010 Apple Computer, Inc., Mozilla
+ * Foundation, and Opera Software ASA.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * THIS IS A GENERATED FILE. PLEASE DO NOT EDIT.
+ * Please edit Tokenizer.java instead and regenerate.
+ */
+
+#define nsHtml5Tokenizer_cpp__
+
+#include "nsAtom.h"
+#include "nsHtml5AtomTable.h"
+#include "nsHtml5String.h"
+#include "nsIContent.h"
+#include "nsTraceRefcnt.h"
+#include "jArray.h"
+#include "nsHtml5DocumentMode.h"
+#include "nsHtml5ArrayCopy.h"
+#include "nsHtml5NamedCharacters.h"
+#include "nsHtml5NamedCharactersAccel.h"
+#include "nsGkAtoms.h"
+#include "nsAHtml5TreeBuilderState.h"
+#include "nsHtml5Macros.h"
+#include "nsHtml5Highlighter.h"
+#include "nsHtml5TokenizerLoopPolicies.h"
+
+#include "nsHtml5AttributeName.h"
+#include "nsHtml5ElementName.h"
+#include "nsHtml5TreeBuilder.h"
+#include "nsHtml5MetaScanner.h"
+#include "nsHtml5StackNode.h"
+#include "nsHtml5UTF16Buffer.h"
+#include "nsHtml5StateSnapshot.h"
+#include "nsHtml5Portability.h"
+
+#include "nsHtml5Tokenizer.h"
+
+char16_t nsHtml5Tokenizer::LT_GT[] = {'<', '>'};
+char16_t nsHtml5Tokenizer::LT_SOLIDUS[] = {'<', '/'};
+char16_t nsHtml5Tokenizer::RSQB_RSQB[] = {']', ']'};
+char16_t nsHtml5Tokenizer::REPLACEMENT_CHARACTER[] = {0xfffd};
+char16_t nsHtml5Tokenizer::LF[] = {'\n'};
+char16_t nsHtml5Tokenizer::CDATA_LSQB[] = {'C', 'D', 'A', 'T', 'A', '['};
+char16_t nsHtml5Tokenizer::OCTYPE[] = {'o', 'c', 't', 'y', 'p', 'e'};
+char16_t nsHtml5Tokenizer::UBLIC[] = {'u', 'b', 'l', 'i', 'c'};
+char16_t nsHtml5Tokenizer::YSTEM[] = {'y', 's', 't', 'e', 'm'};
+static char16_t const TITLE_ARR_DATA[] = {'t', 'i', 't', 'l', 'e'};
+staticJArray<char16_t, int32_t> nsHtml5Tokenizer::TITLE_ARR = {
+    TITLE_ARR_DATA, MOZ_ARRAY_LENGTH(TITLE_ARR_DATA)};
+static char16_t const SCRIPT_ARR_DATA[] = {'s', 'c', 'r', 'i', 'p', 't'};
+staticJArray<char16_t, int32_t> nsHtml5Tokenizer::SCRIPT_ARR = {
+    SCRIPT_ARR_DATA, MOZ_ARRAY_LENGTH(SCRIPT_ARR_DATA)};
+static char16_t const STYLE_ARR_DATA[] = {'s', 't', 'y', 'l', 'e'};
+staticJArray<char16_t, int32_t> nsHtml5Tokenizer::STYLE_ARR = {
+    STYLE_ARR_DATA, MOZ_ARRAY_LENGTH(STYLE_ARR_DATA)};
+static char16_t const PLAINTEXT_ARR_DATA[] = {'p', 'l', 'a', 'i', 'n',
+                                              't', 'e', 'x', 't'};
+staticJArray<char16_t, int32_t> nsHtml5Tokenizer::PLAINTEXT_ARR = {
+    PLAINTEXT_ARR_DATA, MOZ_ARRAY_LENGTH(PLAINTEXT_ARR_DATA)};
+static char16_t const XMP_ARR_DATA[] = {'x', 'm', 'p'};
+staticJArray<char16_t, int32_t> nsHtml5Tokenizer::XMP_ARR = {
+    XMP_ARR_DATA, MOZ_ARRAY_LENGTH(XMP_ARR_DATA)};
+static char16_t const TEXTAREA_ARR_DATA[] = {'t', 'e', 'x', 't',
+                                             'a', 'r', 'e', 'a'};
+staticJArray<char16_t, int32_t> nsHtml5Tokenizer::TEXTAREA_ARR = {
+    TEXTAREA_ARR_DATA, MOZ_ARRAY_LENGTH(TEXTAREA_ARR_DATA)};
+static char16_t const IFRAME_ARR_DATA[] = {'i', 'f', 'r', 'a', 'm', 'e'};
+staticJArray<char16_t, int32_t> nsHtml5Tokenizer::IFRAME_ARR = {
+    IFRAME_ARR_DATA, MOZ_ARRAY_LENGTH(IFRAME_ARR_DATA)};
+static char16_t const NOEMBED_ARR_DATA[] = {'n', 'o', 'e', 'm', 'b', 'e', 'd'};
+staticJArray<char16_t, int32_t> nsHtml5Tokenizer::NOEMBED_ARR = {
+    NOEMBED_ARR_DATA, MOZ_ARRAY_LENGTH(NOEMBED_ARR_DATA)};
+static char16_t const NOSCRIPT_ARR_DATA[] = {'n', 'o', 's', 'c',
+                                             'r', 'i', 'p', 't'};
+staticJArray<char16_t, int32_t> nsHtml5Tokenizer::NOSCRIPT_ARR = {
+    NOSCRIPT_ARR_DATA, MOZ_ARRAY_LENGTH(NOSCRIPT_ARR_DATA)};
+static char16_t const NOFRAMES_ARR_DATA[] = {'n', 'o', 'f', 'r',
+                                             'a', 'm', 'e', 's'};
+staticJArray<char16_t, int32_t> nsHtml5Tokenizer::NOFRAMES_ARR = {
+    NOFRAMES_ARR_DATA, MOZ_ARRAY_LENGTH(NOFRAMES_ARR_DATA)};
+
+nsHtml5Tokenizer::nsHtml5Tokenizer(nsHtml5TreeBuilder* tokenHandler,
+                                   bool viewingXmlSource)
+    : tokenHandler(tokenHandler),
+      encodingDeclarationHandler(nullptr),
+      lastCR(false),
+      stateSave(0),
+      returnStateSave(0),
+      index(0),
+      forceQuirks(false),
+      additional('\0'),
+      entCol(0),
+      firstCharKey(0),
+      lo(0),
+      hi(0),
+      candidate(0),
+      charRefBufMark(0),
+      value(0),
+      seenDigits(false),
+      cstart(0),
+      strBufLen(0),
+      charRefBuf(jArray<char16_t, int32_t>::newJArray(32)),
+      charRefBufLen(0),
+      bmpChar(jArray<char16_t, int32_t>::newJArray(1)),
+      astralChar(jArray<char16_t, int32_t>::newJArray(2)),
+      endTagExpectation(nullptr),
+      endTagExpectationAsArray(nullptr),
+      endTag(false),
+      containsHyphen(false),
+      tagName(nullptr),
+      nonInternedTagName(new nsHtml5ElementName()),
+      attributeName(nullptr),
+      nonInternedAttributeName(new nsHtml5AttributeName()),
+      doctypeName(nullptr),
+      publicIdentifier(nullptr),
+      systemIdentifier(nullptr),
+      attributes(tokenHandler->HasBuilder() ? new nsHtml5HtmlAttributes(0)
+                                            : nullptr),
+      newAttributesEachTime(!tokenHandler->HasBuilder()),
+      shouldSuspend(false),
+      confident(false),
+      line(0),
+      attributeLine(0),
+      interner(nullptr),
+      viewingXmlSource(viewingXmlSource) {
+  MOZ_COUNT_CTOR(nsHtml5Tokenizer);
+}
+
+void nsHtml5Tokenizer::setInterner(nsHtml5AtomTable* interner) {
+  this->interner = interner;
+}
+
+void nsHtml5Tokenizer::initLocation(nsHtml5String newPublicId,
+                                    nsHtml5String newSystemId) {
+  this->systemId = newSystemId;
+  this->publicId = newPublicId;
+}
+
+bool nsHtml5Tokenizer::isViewingXmlSource() { return viewingXmlSource; }
+
+void nsHtml5Tokenizer::setState(int32_t specialTokenizerState) {
+  this->stateSave = specialTokenizerState;
+  this->endTagExpectation = nullptr;
+  this->endTagExpectationAsArray = nullptr;
+}
+
+void nsHtml5Tokenizer::setStateAndEndTagExpectation(
+    int32_t specialTokenizerState, nsHtml5ElementName* endTagExpectation) {
+  this->stateSave = specialTokenizerState;
+  this->endTagExpectation = endTagExpectation;
+  endTagExpectationToArray();
+}
+
+void nsHtml5Tokenizer::endTagExpectationToArray() {
+  switch (endTagExpectation->getGroup()) {
+    case nsHtml5TreeBuilder::TITLE: {
+      endTagExpectationAsArray = TITLE_ARR;
+      return;
+    }
+    case nsHtml5TreeBuilder::SCRIPT: {
+      endTagExpectationAsArray = SCRIPT_ARR;
+      return;
+    }
+    case nsHtml5TreeBuilder::STYLE: {
+      endTagExpectationAsArray = STYLE_ARR;
+      return;
+    }
+    case nsHtml5TreeBuilder::PLAINTEXT: {
+      endTagExpectationAsArray = PLAINTEXT_ARR;
+      return;
+    }
+    case nsHtml5TreeBuilder::XMP: {
+      endTagExpectationAsArray = XMP_ARR;
+      return;
+    }
+    case nsHtml5TreeBuilder::TEXTAREA: {
+      endTagExpectationAsArray = TEXTAREA_ARR;
+      return;
+    }
+    case nsHtml5TreeBuilder::IFRAME: {
+      endTagExpectationAsArray = IFRAME_ARR;
+      return;
+    }
+    case nsHtml5TreeBuilder::NOEMBED: {
+      endTagExpectationAsArray = NOEMBED_ARR;
+      return;
+    }
+    case nsHtml5TreeBuilder::NOSCRIPT: {
+      endTagExpectationAsArray = NOSCRIPT_ARR;
+      return;
+    }
+    case nsHtml5TreeBuilder::NOFRAMES: {
+      endTagExpectationAsArray = NOFRAMES_ARR;
+      return;
+    }
+    default: {
+      MOZ_ASSERT(false, "Bad end tag expectation.");
+      return;
+    }
+  }
+}
+
+void nsHtml5Tokenizer::setLineNumber(int32_t line) {
+  this->attributeLine = line;
+  this->line = line;
+}
+
+nsHtml5HtmlAttributes* nsHtml5Tokenizer::emptyAttributes() {
+  return nsHtml5HtmlAttributes::EMPTY_ATTRIBUTES;
+}
+
+void nsHtml5Tokenizer::emitOrAppendCharRefBuf(int32_t returnState) {
+  if ((returnState & DATA_AND_RCDATA_MASK)) {
+    appendCharRefBufToStrBuf();
+  } else {
+    if (charRefBufLen > 0) {
+      tokenHandler->characters(charRefBuf, 0, charRefBufLen);
+      charRefBufLen = 0;
+    }
+  }
+}
+
+nsHtml5String nsHtml5Tokenizer::strBufToString() {
+  nsHtml5String str = nsHtml5Portability::newStringFromBuffer(
+      strBuf, 0, strBufLen, tokenHandler,
+      !newAttributesEachTime &&
+          attributeName == nsHtml5AttributeName::ATTR_CLASS);
+  clearStrBufAfterUse();
+  return str;
+}
+
+void nsHtml5Tokenizer::strBufToDoctypeName() {
+  doctypeName =
+      nsHtml5Portability::newLocalNameFromBuffer(strBuf, strBufLen, interner);
+  clearStrBufAfterUse();
+}
+
+void nsHtml5Tokenizer::emitStrBuf() {
+  if (strBufLen > 0) {
+    tokenHandler->characters(strBuf, 0, strBufLen);
+    clearStrBufAfterUse();
+  }
+}
+
+void nsHtml5Tokenizer::appendStrBuf(char16_t* buffer, int32_t offset,
+                                    int32_t length) {
+  int32_t newLen = nsHtml5Portability::checkedAdd(strBufLen, length);
+  MOZ_ASSERT(newLen <= strBuf.length, "Previous buffer length insufficient.");
+  if (MOZ_UNLIKELY(strBuf.length < newLen)) {
+    if (MOZ_UNLIKELY(!EnsureBufferSpace(length))) {
+      MOZ_CRASH("Unable to recover from buffer reallocation failure");
+    }
+  }
+  nsHtml5ArrayCopy::arraycopy(buffer, offset, strBuf, strBufLen, length);
+  strBufLen = newLen;
+}
+
+void nsHtml5Tokenizer::emitComment(int32_t provisionalHyphens, int32_t pos) {
+  tokenHandler->comment(strBuf, 0, strBufLen - provisionalHyphens);
+  clearStrBufAfterUse();
+  cstart = pos + 1;
+}
+
+void nsHtml5Tokenizer::flushChars(char16_t* buf, int32_t pos) {
+  if (pos > cstart) {
+    tokenHandler->characters(buf, cstart, pos - cstart);
+  }
+  cstart = INT32_MAX;
+}
+
+void nsHtml5Tokenizer::strBufToElementNameString() {
+  if (containsHyphen) {
+    nsAtom* annotationName = nsHtml5ElementName::ELT_ANNOTATION_XML->getName();
+    if (nsHtml5Portability::localEqualsBuffer(annotationName, strBuf,
+                                              strBufLen)) {
+      tagName = nsHtml5ElementName::ELT_ANNOTATION_XML;
+    } else {
+      nonInternedTagName->setNameForNonInterned(
+          nsHtml5Portability::newLocalNameFromBuffer(strBuf, strBufLen,
+                                                     interner),
+          true);
+      tagName = nonInternedTagName;
+    }
+  } else {
+    tagName =
+        nsHtml5ElementName::elementNameByBuffer(strBuf, strBufLen, interner);
+    if (!tagName) {
+      nonInternedTagName->setNameForNonInterned(
+          nsHtml5Portability::newLocalNameFromBuffer(strBuf, strBufLen,
+                                                     interner),
+          false);
+      tagName = nonInternedTagName;
+    }
+  }
+  containsHyphen = false;
+  clearStrBufAfterUse();
+}
+
+int32_t nsHtml5Tokenizer::emitCurrentTagToken(bool selfClosing, int32_t pos) {
+  cstart = pos + 1;
+  maybeErrSlashInEndTag(selfClosing);
+  stateSave = nsHtml5Tokenizer::DATA;
+  nsHtml5HtmlAttributes* attrs =
+      (!attributes ? nsHtml5HtmlAttributes::EMPTY_ATTRIBUTES : attributes);
+  if (endTag) {
+    maybeErrAttributesOnEndTag(attrs);
+    if (!viewingXmlSource) {
+      tokenHandler->endTag(tagName);
+    }
+    if (newAttributesEachTime) {
+      delete attributes;
+      attributes = nullptr;
+    }
+  } else {
+    if (viewingXmlSource) {
+      MOZ_ASSERT(newAttributesEachTime);
+      delete attributes;
+      attributes = nullptr;
+    } else {
+      tokenHandler->startTag(tagName, attrs, selfClosing);
+    }
+  }
+  tagName = nullptr;
+  if (newAttributesEachTime) {
+    attributes = nullptr;
+  } else {
+    attributes->clear(0);
+  }
+  return stateSave;
+}
+
+void nsHtml5Tokenizer::attributeNameComplete() {
+  attributeName =
+      nsHtml5AttributeName::nameByBuffer(strBuf, strBufLen, interner);
+  if (!attributeName) {
+    nonInternedAttributeName->setNameForNonInterned(
+        nsHtml5Portability::newLocalNameFromBuffer(strBuf, strBufLen,
+                                                   interner));
+    attributeName = nonInternedAttributeName;
+  }
+  clearStrBufAfterUse();
+  if (!attributes) {
+    attributes = new nsHtml5HtmlAttributes(0);
+  }
+  if (attributes->contains(attributeName)) {
+    errDuplicateAttribute();
+    attributeName = nullptr;
+  }
+}
+
+void nsHtml5Tokenizer::addAttributeWithoutValue() {
+  if (attributeName) {
+    attributes->addAttribute(
+        attributeName, nsHtml5Portability::newEmptyString(), attributeLine);
+    attributeName = nullptr;
+  } else {
+    clearStrBufAfterUse();
+  }
+}
+
+void nsHtml5Tokenizer::addAttributeWithValue() {
+  if (attributeName) {
+    nsHtml5String val = strBufToString();
+    if (mViewSource) {
+      mViewSource->MaybeLinkifyAttributeValue(attributeName, val);
+    }
+    attributes->addAttribute(attributeName, val, attributeLine);
+    attributeName = nullptr;
+  } else {
+    clearStrBufAfterUse();
+  }
+}
+
+void nsHtml5Tokenizer::start() {
+  initializeWithoutStarting();
+  tokenHandler->startTokenization(this);
+}
+
+bool nsHtml5Tokenizer::tokenizeBuffer(nsHtml5UTF16Buffer* buffer) {
+  int32_t state = stateSave;
+  int32_t returnState = returnStateSave;
+  char16_t c = '\0';
+  shouldSuspend = false;
+  lastCR = false;
+  int32_t start = buffer->getStart();
+  int32_t end = buffer->getEnd();
+  int32_t pos = start - 1;
+  switch (state) {
+    case DATA:
+    case RCDATA:
+    case SCRIPT_DATA:
+    case PLAINTEXT:
+    case RAWTEXT:
+    case CDATA_SECTION:
+    case SCRIPT_DATA_ESCAPED:
+    case SCRIPT_DATA_ESCAPE_START:
+    case SCRIPT_DATA_ESCAPE_START_DASH:
+    case SCRIPT_DATA_ESCAPED_DASH:
+    case SCRIPT_DATA_ESCAPED_DASH_DASH:
+    case SCRIPT_DATA_DOUBLE_ESCAPE_START:
+    case SCRIPT_DATA_DOUBLE_ESCAPED:
+    case SCRIPT_DATA_DOUBLE_ESCAPED_LESS_THAN_SIGN:
+    case SCRIPT_DATA_DOUBLE_ESCAPED_DASH:
+    case SCRIPT_DATA_DOUBLE_ESCAPED_DASH_DASH:
+    case SCRIPT_DATA_DOUBLE_ESCAPE_END: {
+      cstart = start;
+      break;
+    }
+    default: {
+      cstart = INT32_MAX;
+      break;
+    }
+  }
+  if (mViewSource) {
+    mViewSource->SetBuffer(buffer);
+    pos = stateLoop<nsHtml5ViewSourcePolicy>(state, c, pos, buffer->getBuffer(),
+                                             false, returnState,
+                                             buffer->getEnd());
+    mViewSource->DropBuffer((pos == buffer->getEnd()) ? pos : pos + 1);
+  } else {
+    pos = stateLoop<nsHtml5SilentPolicy>(state, c, pos, buffer->getBuffer(),
+                                         false, returnState, buffer->getEnd());
+  }
+  if (pos == end) {
+    buffer->setStart(pos);
+  } else {
+    buffer->setStart(pos + 1);
+  }
+  return lastCR;
+}
+
+template <class P>
+int32_t nsHtml5Tokenizer::stateLoop(int32_t state, char16_t c, int32_t pos,
+                                    char16_t* buf, bool reconsume,
+                                    int32_t returnState, int32_t endPos) {
+stateloop:
+  for (;;) {
+    switch (state) {
+      case DATA: {
+        for (;;) {
+          if (reconsume) {
+            reconsume = false;
+          } else {
+            if (++pos == endPos) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            c = checkChar(buf, pos);
+          }
+          switch (c) {
+            case '&': {
+              flushChars(buf, pos);
+              MOZ_ASSERT(!charRefBufLen,
+                         "charRefBufLen not reset after previous use!");
+              appendCharRefBuf(c);
+              setAdditionalAndRememberAmpersandLocation('\0');
+              returnState = state;
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::CONSUME_CHARACTER_REFERENCE,
+                                reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '<': {
+              flushChars(buf, pos);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::TAG_OPEN, reconsume, pos);
+              NS_HTML5_BREAK(dataloop);
+            }
+            case '\0': {
+              emitReplacementCharacter(buf, pos);
+              continue;
+            }
+            case '\r': {
+              emitCarriageReturn(buf, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            default: {
+              continue;
+            }
+          }
+        }
+      dataloop_end:;
+        [[fallthrough]];
+      }
+      case TAG_OPEN: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          if (c >= 'A' && c <= 'Z') {
+            endTag = false;
+            clearStrBufBeforeUse();
+            appendStrBuf((char16_t)(c + 0x20));
+            containsHyphen = false;
+            state = P::transition(mViewSource.get(), nsHtml5Tokenizer::TAG_NAME,
+                                  reconsume, pos);
+            NS_HTML5_BREAK(tagopenloop);
+          } else if (c >= 'a' && c <= 'z') {
+            endTag = false;
+            clearStrBufBeforeUse();
+            appendStrBuf(c);
+            containsHyphen = false;
+            state = P::transition(mViewSource.get(), nsHtml5Tokenizer::TAG_NAME,
+                                  reconsume, pos);
+            NS_HTML5_BREAK(tagopenloop);
+          }
+          switch (c) {
+            case '!': {
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::MARKUP_DECLARATION_OPEN,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '/': {
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::CLOSE_TAG_OPEN, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\?': {
+              if (viewingXmlSource) {
+                state = P::transition(mViewSource.get(),
+                                      nsHtml5Tokenizer::PROCESSING_INSTRUCTION,
+                                      reconsume, pos);
+                NS_HTML5_CONTINUE(stateloop);
+              }
+              if (P::reportErrors) {
+                errProcessingInstruction();
+              }
+              clearStrBufBeforeUse();
+              appendStrBuf(c);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_COMMENT, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '>': {
+              if (P::reportErrors) {
+                errLtGt();
+              }
+              tokenHandler->characters(nsHtml5Tokenizer::LT_GT, 0, 2);
+              cstart = pos + 1;
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            default: {
+              if (P::reportErrors) {
+                errBadCharAfterLt(c);
+              }
+              tokenHandler->characters(nsHtml5Tokenizer::LT_GT, 0, 1);
+              cstart = pos;
+              reconsume = true;
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      tagopenloop_end:;
+        [[fallthrough]];
+      }
+      case TAG_NAME: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '\r': {
+              silentCarriageReturn();
+              strBufToElementNameString();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BEFORE_ATTRIBUTE_NAME,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f': {
+              strBufToElementNameString();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BEFORE_ATTRIBUTE_NAME,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(tagnameloop);
+            }
+            case '/': {
+              strBufToElementNameString();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::SELF_CLOSING_START_TAG,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '>': {
+              strBufToElementNameString();
+              state = P::transition(mViewSource.get(),
+                                    emitCurrentTagToken(false, pos), reconsume,
+                                    pos);
+              if (shouldSuspend) {
+                NS_HTML5_BREAK(stateloop);
+              }
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            default: {
+              if (c >= 'A' && c <= 'Z') {
+                c += 0x20;
+              } else if (c == '-') {
+                containsHyphen = true;
+              }
+              appendStrBuf(c);
+              continue;
+            }
+          }
+        }
+      tagnameloop_end:;
+        [[fallthrough]];
+      }
+      case BEFORE_ATTRIBUTE_NAME: {
+        for (;;) {
+          if (reconsume) {
+            reconsume = false;
+          } else {
+            if (++pos == endPos) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            c = checkChar(buf, pos);
+          }
+          switch (c) {
+            case '\r': {
+              silentCarriageReturn();
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f': {
+              continue;
+            }
+            case '/': {
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::SELF_CLOSING_START_TAG,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '>': {
+              state = P::transition(mViewSource.get(),
+                                    emitCurrentTagToken(false, pos), reconsume,
+                                    pos);
+              if (shouldSuspend) {
+                NS_HTML5_BREAK(stateloop);
+              }
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            case '\"':
+            case '\'':
+            case '<':
+            case '=': {
+              if (P::reportErrors) {
+                errBadCharBeforeAttributeNameOrNull(c);
+              }
+              [[fallthrough]];
+            }
+            default: {
+              if (c >= 'A' && c <= 'Z') {
+                c += 0x20;
+              }
+              attributeLine = line;
+              clearStrBufBeforeUse();
+              appendStrBuf(c);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::ATTRIBUTE_NAME, reconsume,
+                                    pos);
+              NS_HTML5_BREAK(beforeattributenameloop);
+            }
+          }
+        }
+      beforeattributenameloop_end:;
+        [[fallthrough]];
+      }
+      case ATTRIBUTE_NAME: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '\r': {
+              silentCarriageReturn();
+              attributeNameComplete();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::AFTER_ATTRIBUTE_NAME,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f': {
+              attributeNameComplete();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::AFTER_ATTRIBUTE_NAME,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '/': {
+              attributeNameComplete();
+              addAttributeWithoutValue();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::SELF_CLOSING_START_TAG,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '=': {
+              attributeNameComplete();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BEFORE_ATTRIBUTE_VALUE,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(attributenameloop);
+            }
+            case '>': {
+              attributeNameComplete();
+              addAttributeWithoutValue();
+              state = P::transition(mViewSource.get(),
+                                    emitCurrentTagToken(false, pos), reconsume,
+                                    pos);
+              if (shouldSuspend) {
+                NS_HTML5_BREAK(stateloop);
+              }
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            case '\"':
+            case '\'':
+            case '<': {
+              if (P::reportErrors) {
+                errQuoteOrLtInAttributeNameOrNull(c);
+              }
+              [[fallthrough]];
+            }
+            default: {
+              if (c >= 'A' && c <= 'Z') {
+                c += 0x20;
+              }
+              appendStrBuf(c);
+              continue;
+            }
+          }
+        }
+      attributenameloop_end:;
+        [[fallthrough]];
+      }
+      case BEFORE_ATTRIBUTE_VALUE: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '\r': {
+              silentCarriageReturn();
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f': {
+              continue;
+            }
+            case '\"': {
+              attributeLine = line;
+              clearStrBufBeforeUse();
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::ATTRIBUTE_VALUE_DOUBLE_QUOTED,
+                                reconsume, pos);
+              NS_HTML5_BREAK(beforeattributevalueloop);
+            }
+            case '&': {
+              attributeLine = line;
+              clearStrBufBeforeUse();
+              reconsume = true;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::ATTRIBUTE_VALUE_UNQUOTED,
+                                    reconsume, pos);
+
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\'': {
+              attributeLine = line;
+              clearStrBufBeforeUse();
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::ATTRIBUTE_VALUE_SINGLE_QUOTED,
+                                reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '>': {
+              if (P::reportErrors) {
+                errAttributeValueMissing();
+              }
+              addAttributeWithoutValue();
+              state = P::transition(mViewSource.get(),
+                                    emitCurrentTagToken(false, pos), reconsume,
+                                    pos);
+              if (shouldSuspend) {
+                NS_HTML5_BREAK(stateloop);
+              }
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            case '<':
+            case '=':
+            case '`': {
+              if (P::reportErrors) {
+                errLtOrEqualsOrGraveInUnquotedAttributeOrNull(c);
+              }
+              [[fallthrough]];
+            }
+            default: {
+              attributeLine = line;
+              clearStrBufBeforeUse();
+              appendStrBuf(c);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::ATTRIBUTE_VALUE_UNQUOTED,
+                                    reconsume, pos);
+
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      beforeattributevalueloop_end:;
+        [[fallthrough]];
+      }
+      case ATTRIBUTE_VALUE_DOUBLE_QUOTED: {
+        for (;;) {
+          if (reconsume) {
+            reconsume = false;
+          } else {
+            if (++pos == endPos) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            c = checkChar(buf, pos);
+          }
+          switch (c) {
+            case '\"': {
+              addAttributeWithValue();
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::AFTER_ATTRIBUTE_VALUE_QUOTED,
+                                reconsume, pos);
+              NS_HTML5_BREAK(attributevaluedoublequotedloop);
+            }
+            case '&': {
+              MOZ_ASSERT(!charRefBufLen,
+                         "charRefBufLen not reset after previous use!");
+              appendCharRefBuf(c);
+              setAdditionalAndRememberAmpersandLocation('\"');
+              returnState = state;
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::CONSUME_CHARACTER_REFERENCE,
+                                reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\r': {
+              appendStrBufCarriageReturn();
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              appendStrBufLineFeed();
+              continue;
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            default: {
+              appendStrBuf(c);
+              continue;
+            }
+          }
+        }
+      attributevaluedoublequotedloop_end:;
+        [[fallthrough]];
+      }
+      case AFTER_ATTRIBUTE_VALUE_QUOTED: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '\r': {
+              silentCarriageReturn();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BEFORE_ATTRIBUTE_NAME,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f': {
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BEFORE_ATTRIBUTE_NAME,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '/': {
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::SELF_CLOSING_START_TAG,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(afterattributevaluequotedloop);
+            }
+            case '>': {
+              state = P::transition(mViewSource.get(),
+                                    emitCurrentTagToken(false, pos), reconsume,
+                                    pos);
+              if (shouldSuspend) {
+                NS_HTML5_BREAK(stateloop);
+              }
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            default: {
+              if (P::reportErrors) {
+                errNoSpaceBetweenAttributes();
+              }
+              reconsume = true;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BEFORE_ATTRIBUTE_NAME,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      afterattributevaluequotedloop_end:;
+        [[fallthrough]];
+      }
+      case SELF_CLOSING_START_TAG: {
+        if (++pos == endPos) {
+          NS_HTML5_BREAK(stateloop);
+        }
+        c = checkChar(buf, pos);
+        switch (c) {
+          case '>': {
+            state =
+                P::transition(mViewSource.get(), emitCurrentTagToken(true, pos),
+                              reconsume, pos);
+            if (shouldSuspend) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            NS_HTML5_CONTINUE(stateloop);
+          }
+          default: {
+            if (P::reportErrors) {
+              errSlashNotFollowedByGt();
+            }
+            reconsume = true;
+            state = P::transition(mViewSource.get(),
+                                  nsHtml5Tokenizer::BEFORE_ATTRIBUTE_NAME,
+                                  reconsume, pos);
+            NS_HTML5_CONTINUE(stateloop);
+          }
+        }
+      }
+      case ATTRIBUTE_VALUE_UNQUOTED: {
+        for (;;) {
+          if (reconsume) {
+            reconsume = false;
+          } else {
+            if (++pos == endPos) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            c = checkChar(buf, pos);
+          }
+          switch (c) {
+            case '\r': {
+              silentCarriageReturn();
+              addAttributeWithValue();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BEFORE_ATTRIBUTE_NAME,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f': {
+              addAttributeWithValue();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BEFORE_ATTRIBUTE_NAME,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '&': {
+              MOZ_ASSERT(!charRefBufLen,
+                         "charRefBufLen not reset after previous use!");
+              appendCharRefBuf(c);
+              setAdditionalAndRememberAmpersandLocation('>');
+              returnState = state;
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::CONSUME_CHARACTER_REFERENCE,
+                                reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '>': {
+              addAttributeWithValue();
+              state = P::transition(mViewSource.get(),
+                                    emitCurrentTagToken(false, pos), reconsume,
+                                    pos);
+              if (shouldSuspend) {
+                NS_HTML5_BREAK(stateloop);
+              }
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            case '<':
+            case '\"':
+            case '\'':
+            case '=':
+            case '`': {
+              if (P::reportErrors) {
+                errUnquotedAttributeValOrNull(c);
+              }
+              [[fallthrough]];
+            }
+            default: {
+              appendStrBuf(c);
+              continue;
+            }
+          }
+        }
+      }
+      case AFTER_ATTRIBUTE_NAME: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '\r': {
+              silentCarriageReturn();
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f': {
+              continue;
+            }
+            case '/': {
+              addAttributeWithoutValue();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::SELF_CLOSING_START_TAG,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '=': {
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BEFORE_ATTRIBUTE_VALUE,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '>': {
+              addAttributeWithoutValue();
+              state = P::transition(mViewSource.get(),
+                                    emitCurrentTagToken(false, pos), reconsume,
+                                    pos);
+              if (shouldSuspend) {
+                NS_HTML5_BREAK(stateloop);
+              }
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            case '\"':
+            case '\'':
+            case '<': {
+              if (P::reportErrors) {
+                errQuoteOrLtInAttributeNameOrNull(c);
+              }
+              [[fallthrough]];
+            }
+            default: {
+              addAttributeWithoutValue();
+              if (c >= 'A' && c <= 'Z') {
+                c += 0x20;
+              }
+              clearStrBufBeforeUse();
+              appendStrBuf(c);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::ATTRIBUTE_NAME, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      }
+      case MARKUP_DECLARATION_OPEN: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '-': {
+              clearStrBufBeforeUse();
+              appendStrBuf(c);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::MARKUP_DECLARATION_HYPHEN,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(markupdeclarationopenloop);
+            }
+            case 'd':
+            case 'D': {
+              clearStrBufBeforeUse();
+              appendStrBuf(c);
+              index = 0;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::MARKUP_DECLARATION_OCTYPE,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '[': {
+              if (tokenHandler->cdataSectionAllowed()) {
+                clearStrBufBeforeUse();
+                appendStrBuf(c);
+                index = 0;
+                state = P::transition(mViewSource.get(),
+                                      nsHtml5Tokenizer::CDATA_START, reconsume,
+                                      pos);
+                NS_HTML5_CONTINUE(stateloop);
+              }
+              [[fallthrough]];
+            }
+            default: {
+              if (P::reportErrors) {
+                errBogusComment();
+              }
+              clearStrBufBeforeUse();
+              reconsume = true;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_COMMENT, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      markupdeclarationopenloop_end:;
+        [[fallthrough]];
+      }
+      case MARKUP_DECLARATION_HYPHEN: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '-': {
+              clearStrBufAfterOneHyphen();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::COMMENT_START, reconsume,
+                                    pos);
+              NS_HTML5_BREAK(markupdeclarationhyphenloop);
+            }
+            default: {
+              if (P::reportErrors) {
+                errBogusComment();
+              }
+              reconsume = true;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_COMMENT, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      markupdeclarationhyphenloop_end:;
+        [[fallthrough]];
+      }
+      case COMMENT_START: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '-': {
+              appendStrBuf(c);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::COMMENT_START_DASH,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '>': {
+              if (P::reportErrors) {
+                errPrematureEndOfComment();
+              }
+              emitComment(0, pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\r': {
+              appendStrBufCarriageReturn();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::COMMENT, reconsume, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              appendStrBufLineFeed();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::COMMENT, reconsume, pos);
+              NS_HTML5_BREAK(commentstartloop);
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            default: {
+              appendStrBuf(c);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::COMMENT, reconsume, pos);
+              NS_HTML5_BREAK(commentstartloop);
+            }
+          }
+        }
+      commentstartloop_end:;
+        [[fallthrough]];
+      }
+      case COMMENT: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '-': {
+              appendStrBuf(c);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::COMMENT_END_DASH,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(commentloop);
+            }
+            case '\r': {
+              appendStrBufCarriageReturn();
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              appendStrBufLineFeed();
+              continue;
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            default: {
+              appendStrBuf(c);
+              continue;
+            }
+          }
+        }
+      commentloop_end:;
+        [[fallthrough]];
+      }
+      case COMMENT_END_DASH: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '-': {
+              appendStrBuf(c);
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::COMMENT_END, reconsume, pos);
+              NS_HTML5_BREAK(commentenddashloop);
+            }
+            case '\r': {
+              appendStrBufCarriageReturn();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::COMMENT, reconsume, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              appendStrBufLineFeed();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::COMMENT, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            default: {
+              appendStrBuf(c);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::COMMENT, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      commentenddashloop_end:;
+        [[fallthrough]];
+      }
+      case COMMENT_END: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '>': {
+              emitComment(2, pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '-': {
+              adjustDoubleHyphenAndAppendToStrBufAndErr(c);
+              continue;
+            }
+            case '\r': {
+              adjustDoubleHyphenAndAppendToStrBufCarriageReturn();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::COMMENT, reconsume, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              adjustDoubleHyphenAndAppendToStrBufLineFeed();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::COMMENT, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '!': {
+              if (P::reportErrors) {
+                errHyphenHyphenBang();
+              }
+              appendStrBuf(c);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::COMMENT_END_BANG,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            default: {
+              adjustDoubleHyphenAndAppendToStrBufAndErr(c);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::COMMENT, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      }
+      case COMMENT_END_BANG: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '>': {
+              emitComment(3, pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '-': {
+              appendStrBuf(c);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::COMMENT_END_DASH,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\r': {
+              appendStrBufCarriageReturn();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::COMMENT, reconsume, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              appendStrBufLineFeed();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::COMMENT, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            default: {
+              appendStrBuf(c);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::COMMENT, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      }
+      case COMMENT_START_DASH: {
+        if (++pos == endPos) {
+          NS_HTML5_BREAK(stateloop);
+        }
+        c = checkChar(buf, pos);
+        switch (c) {
+          case '-': {
+            appendStrBuf(c);
+            state =
+                P::transition(mViewSource.get(), nsHtml5Tokenizer::COMMENT_END,
+                              reconsume, pos);
+            NS_HTML5_CONTINUE(stateloop);
+          }
+          case '>': {
+            if (P::reportErrors) {
+              errPrematureEndOfComment();
+            }
+            emitComment(1, pos);
+            state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                  reconsume, pos);
+            NS_HTML5_CONTINUE(stateloop);
+          }
+          case '\r': {
+            appendStrBufCarriageReturn();
+            state = P::transition(mViewSource.get(), nsHtml5Tokenizer::COMMENT,
+                                  reconsume, pos);
+            NS_HTML5_BREAK(stateloop);
+          }
+          case '\n': {
+            appendStrBufLineFeed();
+            state = P::transition(mViewSource.get(), nsHtml5Tokenizer::COMMENT,
+                                  reconsume, pos);
+            NS_HTML5_CONTINUE(stateloop);
+          }
+          case '\0': {
+            c = 0xfffd;
+            [[fallthrough]];
+          }
+          default: {
+            appendStrBuf(c);
+            state = P::transition(mViewSource.get(), nsHtml5Tokenizer::COMMENT,
+                                  reconsume, pos);
+            NS_HTML5_CONTINUE(stateloop);
+          }
+        }
+      }
+      case CDATA_START: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          if (index < 6) {
+            if (c == nsHtml5Tokenizer::CDATA_LSQB[index]) {
+              appendStrBuf(c);
+            } else {
+              if (P::reportErrors) {
+                errBogusComment();
+              }
+              reconsume = true;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_COMMENT, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            index++;
+            continue;
+          } else {
+            clearStrBufAfterUse();
+            cstart = pos;
+            reconsume = true;
+            state =
+                P::transition(mViewSource.get(),
+                              nsHtml5Tokenizer::CDATA_SECTION, reconsume, pos);
+            break;
+          }
+        }
+        [[fallthrough]];
+      }
+      case CDATA_SECTION: {
+        for (;;) {
+          if (reconsume) {
+            reconsume = false;
+          } else {
+            if (++pos == endPos) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            c = checkChar(buf, pos);
+          }
+          switch (c) {
+            case ']': {
+              flushChars(buf, pos);
+              state =
+                  P::transition(mViewSource.get(), nsHtml5Tokenizer::CDATA_RSQB,
+                                reconsume, pos);
+              NS_HTML5_BREAK(cdatasectionloop);
+            }
+            case '\0': {
+              emitReplacementCharacter(buf, pos);
+              continue;
+            }
+            case '\r': {
+              emitCarriageReturn(buf, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            default: {
+              continue;
+            }
+          }
+        }
+      cdatasectionloop_end:;
+        [[fallthrough]];
+      }
+      case CDATA_RSQB: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case ']': {
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::CDATA_RSQB_RSQB,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(cdatarsqb);
+            }
+            default: {
+              tokenHandler->characters(nsHtml5Tokenizer::RSQB_RSQB, 0, 1);
+              cstart = pos;
+              reconsume = true;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::CDATA_SECTION, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      cdatarsqb_end:;
+        [[fallthrough]];
+      }
+      case CDATA_RSQB_RSQB: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case ']': {
+              tokenHandler->characters(nsHtml5Tokenizer::RSQB_RSQB, 0, 1);
+              continue;
+            }
+            case '>': {
+              cstart = pos + 1;
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            default: {
+              tokenHandler->characters(nsHtml5Tokenizer::RSQB_RSQB, 0, 2);
+              cstart = pos;
+              reconsume = true;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::CDATA_SECTION, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      }
+      case ATTRIBUTE_VALUE_SINGLE_QUOTED: {
+        for (;;) {
+          if (reconsume) {
+            reconsume = false;
+          } else {
+            if (++pos == endPos) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            c = checkChar(buf, pos);
+          }
+          switch (c) {
+            case '\'': {
+              addAttributeWithValue();
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::AFTER_ATTRIBUTE_VALUE_QUOTED,
+                                reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '&': {
+              MOZ_ASSERT(!charRefBufLen,
+                         "charRefBufLen not reset after previous use!");
+              appendCharRefBuf(c);
+              setAdditionalAndRememberAmpersandLocation('\'');
+              returnState = state;
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::CONSUME_CHARACTER_REFERENCE,
+                                reconsume, pos);
+              NS_HTML5_BREAK(attributevaluesinglequotedloop);
+            }
+            case '\r': {
+              appendStrBufCarriageReturn();
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              appendStrBufLineFeed();
+              continue;
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            default: {
+              appendStrBuf(c);
+              continue;
+            }
+          }
+        }
+      attributevaluesinglequotedloop_end:;
+        [[fallthrough]];
+      }
+      case CONSUME_CHARACTER_REFERENCE: {
+        if (++pos == endPos) {
+          NS_HTML5_BREAK(stateloop);
+        }
+        c = checkChar(buf, pos);
+        switch (c) {
+          case ' ':
+          case '\t':
+          case '\n':
+          case '\r':
+          case '\f':
+          case '<':
+          case '&':
+          case '\0': {
+            emitOrAppendCharRefBuf(returnState);
+            if (!(returnState & DATA_AND_RCDATA_MASK)) {
+              cstart = pos;
+            }
+            reconsume = true;
+            state =
+                P::transition(mViewSource.get(), returnState, reconsume, pos);
+            NS_HTML5_CONTINUE(stateloop);
+          }
+          case '#': {
+            appendCharRefBuf('#');
+            state =
+                P::transition(mViewSource.get(), nsHtml5Tokenizer::CONSUME_NCR,
+                              reconsume, pos);
+            NS_HTML5_CONTINUE(stateloop);
+          }
+          default: {
+            if (c == additional) {
+              emitOrAppendCharRefBuf(returnState);
+              reconsume = true;
+              state =
+                  P::transition(mViewSource.get(), returnState, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            if (c >= 'a' && c <= 'z') {
+              firstCharKey = c - 'a' + 26;
+            } else if (c >= 'A' && c <= 'Z') {
+              firstCharKey = c - 'A';
+            } else {
+              if (P::reportErrors) {
+                errNoNamedCharacterMatch();
+              }
+              emitOrAppendCharRefBuf(returnState);
+              if (!(returnState & DATA_AND_RCDATA_MASK)) {
+                cstart = pos;
+              }
+              reconsume = true;
+              state =
+                  P::transition(mViewSource.get(), returnState, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            appendCharRefBuf(c);
+            state =
+                P::transition(mViewSource.get(),
+                              nsHtml5Tokenizer::CHARACTER_REFERENCE_HILO_LOOKUP,
+                              reconsume, pos);
+          }
+        }
+        [[fallthrough]];
+      }
+      case CHARACTER_REFERENCE_HILO_LOOKUP: {
+        {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          int32_t hilo = 0;
+          if (c <= 'z') {
+            const int32_t* row = nsHtml5NamedCharactersAccel::HILO_ACCEL[c];
+            if (row) {
+              hilo = row[firstCharKey];
+            }
+          }
+          if (!hilo) {
+            if (P::reportErrors) {
+              errNoNamedCharacterMatch();
+            }
+            emitOrAppendCharRefBuf(returnState);
+            if (!(returnState & DATA_AND_RCDATA_MASK)) {
+              cstart = pos;
+            }
+            reconsume = true;
+            state =
+                P::transition(mViewSource.get(), returnState, reconsume, pos);
+            NS_HTML5_CONTINUE(stateloop);
+          }
+          appendCharRefBuf(c);
+          lo = hilo & 0xFFFF;
+          hi = hilo >> 16;
+          entCol = -1;
+          candidate = -1;
+          charRefBufMark = 0;
+          state = P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::CHARACTER_REFERENCE_TAIL,
+                                reconsume, pos);
+        }
+        [[fallthrough]];
+      }
+      case CHARACTER_REFERENCE_TAIL: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          entCol++;
+          for (;;) {
+            if (hi < lo) {
+              NS_HTML5_BREAK(outer);
+            }
+            if (entCol == nsHtml5NamedCharacters::NAMES[lo].length()) {
+              candidate = lo;
+              charRefBufMark = charRefBufLen;
+              lo++;
+            } else if (entCol > nsHtml5NamedCharacters::NAMES[lo].length()) {
+              NS_HTML5_BREAK(outer);
+            } else if (c > nsHtml5NamedCharacters::NAMES[lo].charAt(entCol)) {
+              lo++;
+            } else {
+              NS_HTML5_BREAK(loloop);
+            }
+          }
+        loloop_end:;
+          for (;;) {
+            if (hi < lo) {
+              NS_HTML5_BREAK(outer);
+            }
+            if (entCol == nsHtml5NamedCharacters::NAMES[hi].length()) {
+              NS_HTML5_BREAK(hiloop);
+            }
+            if (entCol > nsHtml5NamedCharacters::NAMES[hi].length()) {
+              NS_HTML5_BREAK(outer);
+            } else if (c < nsHtml5NamedCharacters::NAMES[hi].charAt(entCol)) {
+              hi--;
+            } else {
+              NS_HTML5_BREAK(hiloop);
+            }
+          }
+        hiloop_end:;
+          if (c == ';') {
+            if (entCol + 1 == nsHtml5NamedCharacters::NAMES[lo].length()) {
+              candidate = lo;
+              charRefBufMark = charRefBufLen;
+            }
+            NS_HTML5_BREAK(outer);
+          }
+          if (hi < lo) {
+            NS_HTML5_BREAK(outer);
+          }
+          appendCharRefBuf(c);
+          continue;
+        }
+      outer_end:;
+        if (candidate == -1) {
+          if (P::reportErrors) {
+            errNoNamedCharacterMatch();
+          }
+          emitOrAppendCharRefBuf(returnState);
+          if (!(returnState & DATA_AND_RCDATA_MASK)) {
+            cstart = pos;
+          }
+          reconsume = true;
+          state = P::transition(mViewSource.get(), returnState, reconsume, pos);
+          NS_HTML5_CONTINUE(stateloop);
+        } else {
+          const nsHtml5CharacterName& candidateName =
+              nsHtml5NamedCharacters::NAMES[candidate];
+          if (!candidateName.length() ||
+              candidateName.charAt(candidateName.length() - 1) != ';') {
+            if ((returnState & DATA_AND_RCDATA_MASK)) {
+              char16_t ch;
+              if (charRefBufMark == charRefBufLen) {
+                ch = c;
+              } else {
+                ch = charRefBuf[charRefBufMark];
+              }
+              if (ch == '=' || (ch >= '0' && ch <= '9') ||
+                  (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z')) {
+                if (P::reportErrors) {
+                  errNoNamedCharacterMatch();
+                }
+                appendCharRefBufToStrBuf();
+                reconsume = true;
+                state = P::transition(mViewSource.get(), returnState, reconsume,
+                                      pos);
+                NS_HTML5_CONTINUE(stateloop);
+              }
+            }
+            if ((returnState & DATA_AND_RCDATA_MASK)) {
+              if (P::reportErrors) {
+                errUnescapedAmpersandInterpretedAsCharacterReference();
+              }
+            } else {
+              if (P::reportErrors) {
+                errNotSemicolonTerminated();
+              }
+            }
+          }
+          P::completedNamedCharacterReference(mViewSource.get());
+          const char16_t* val = nsHtml5NamedCharacters::VALUES[candidate];
+          if (!val[1]) {
+            emitOrAppendOne(val, returnState);
+          } else {
+            emitOrAppendTwo(val, returnState);
+          }
+          if (charRefBufMark < charRefBufLen) {
+            if ((returnState & DATA_AND_RCDATA_MASK)) {
+              appendStrBuf(charRefBuf, charRefBufMark,
+                           charRefBufLen - charRefBufMark);
+            } else {
+              tokenHandler->characters(charRefBuf, charRefBufMark,
+                                       charRefBufLen - charRefBufMark);
+            }
+          }
+          bool earlyBreak = (c == ';' && charRefBufMark == charRefBufLen);
+          charRefBufLen = 0;
+          if (!(returnState & DATA_AND_RCDATA_MASK)) {
+            cstart = earlyBreak ? pos + 1 : pos;
+          }
+          reconsume = !earlyBreak;
+          state = P::transition(mViewSource.get(), returnState, reconsume, pos);
+          NS_HTML5_CONTINUE(stateloop);
+        }
+      }
+      case CONSUME_NCR: {
+        if (++pos == endPos) {
+          NS_HTML5_BREAK(stateloop);
+        }
+        c = checkChar(buf, pos);
+        value = 0;
+        seenDigits = false;
+        switch (c) {
+          case 'x':
+          case 'X': {
+            appendCharRefBuf(c);
+            state =
+                P::transition(mViewSource.get(), nsHtml5Tokenizer::HEX_NCR_LOOP,
+                              reconsume, pos);
+            NS_HTML5_CONTINUE(stateloop);
+          }
+          default: {
+            reconsume = true;
+            state = P::transition(mViewSource.get(),
+                                  nsHtml5Tokenizer::DECIMAL_NRC_LOOP, reconsume,
+                                  pos);
+          }
+        }
+        [[fallthrough]];
+      }
+      case DECIMAL_NRC_LOOP: {
+        for (;;) {
+          if (reconsume) {
+            reconsume = false;
+          } else {
+            if (++pos == endPos) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            c = checkChar(buf, pos);
+          }
+          MOZ_ASSERT(value >= 0, "value must not become negative.");
+          if (c >= '0' && c <= '9') {
+            seenDigits = true;
+            if (value <= 0x10FFFF) {
+              value *= 10;
+              value += c - '0';
+            }
+            continue;
+          } else if (c == ';') {
+            if (seenDigits) {
+              if (!(returnState & DATA_AND_RCDATA_MASK)) {
+                cstart = pos + 1;
+              }
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::HANDLE_NCR_VALUE,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(decimalloop);
+            } else {
+              if (P::reportErrors) {
+                errNoDigitsInNCR();
+              }
+              appendCharRefBuf(';');
+              emitOrAppendCharRefBuf(returnState);
+              if (!(returnState & DATA_AND_RCDATA_MASK)) {
+                cstart = pos + 1;
+              }
+              state =
+                  P::transition(mViewSource.get(), returnState, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          } else {
+            if (!seenDigits) {
+              if (P::reportErrors) {
+                errNoDigitsInNCR();
+              }
+              emitOrAppendCharRefBuf(returnState);
+              if (!(returnState & DATA_AND_RCDATA_MASK)) {
+                cstart = pos;
+              }
+              reconsume = true;
+              state =
+                  P::transition(mViewSource.get(), returnState, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            } else {
+              if (P::reportErrors) {
+                errCharRefLacksSemicolon();
+              }
+              if (!(returnState & DATA_AND_RCDATA_MASK)) {
+                cstart = pos;
+              }
+              reconsume = true;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::HANDLE_NCR_VALUE,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(decimalloop);
+            }
+          }
+        }
+      decimalloop_end:;
+        [[fallthrough]];
+      }
+      case HANDLE_NCR_VALUE: {
+        charRefBufLen = 0;
+        handleNcrValue(returnState);
+        state = P::transition(mViewSource.get(), returnState, reconsume, pos);
+        NS_HTML5_CONTINUE(stateloop);
+      }
+      case HEX_NCR_LOOP: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          MOZ_ASSERT(value >= 0, "value must not become negative.");
+          if (c >= '0' && c <= '9') {
+            seenDigits = true;
+            if (value <= 0x10FFFF) {
+              value *= 16;
+              value += c - '0';
+            }
+            continue;
+          } else if (c >= 'A' && c <= 'F') {
+            seenDigits = true;
+            if (value <= 0x10FFFF) {
+              value *= 16;
+              value += c - 'A' + 10;
+            }
+            continue;
+          } else if (c >= 'a' && c <= 'f') {
+            seenDigits = true;
+            if (value <= 0x10FFFF) {
+              value *= 16;
+              value += c - 'a' + 10;
+            }
+            continue;
+          } else if (c == ';') {
+            if (seenDigits) {
+              if (!(returnState & DATA_AND_RCDATA_MASK)) {
+                cstart = pos + 1;
+              }
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::HANDLE_NCR_VALUE,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            } else {
+              if (P::reportErrors) {
+                errNoDigitsInNCR();
+              }
+              appendCharRefBuf(';');
+              emitOrAppendCharRefBuf(returnState);
+              if (!(returnState & DATA_AND_RCDATA_MASK)) {
+                cstart = pos + 1;
+              }
+              state =
+                  P::transition(mViewSource.get(), returnState, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          } else {
+            if (!seenDigits) {
+              if (P::reportErrors) {
+                errNoDigitsInNCR();
+              }
+              emitOrAppendCharRefBuf(returnState);
+              if (!(returnState & DATA_AND_RCDATA_MASK)) {
+                cstart = pos;
+              }
+              reconsume = true;
+              state =
+                  P::transition(mViewSource.get(), returnState, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            } else {
+              if (P::reportErrors) {
+                errCharRefLacksSemicolon();
+              }
+              if (!(returnState & DATA_AND_RCDATA_MASK)) {
+                cstart = pos;
+              }
+              reconsume = true;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::HANDLE_NCR_VALUE,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      }
+      case PLAINTEXT: {
+        for (;;) {
+          if (reconsume) {
+            reconsume = false;
+          } else {
+            if (++pos == endPos) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            c = checkChar(buf, pos);
+          }
+          switch (c) {
+            case '\0': {
+              emitPlaintextReplacementCharacter(buf, pos);
+              continue;
+            }
+            case '\r': {
+              emitCarriageReturn(buf, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            default: {
+              continue;
+            }
+          }
+        }
+      }
+      case CLOSE_TAG_OPEN: {
+        if (++pos == endPos) {
+          NS_HTML5_BREAK(stateloop);
+        }
+        c = checkChar(buf, pos);
+        switch (c) {
+          case '>': {
+            if (P::reportErrors) {
+              errLtSlashGt();
+            }
+            cstart = pos + 1;
+            state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                  reconsume, pos);
+            NS_HTML5_CONTINUE(stateloop);
+          }
+          case '\r': {
+            silentCarriageReturn();
+            if (P::reportErrors) {
+              errGarbageAfterLtSlash();
+            }
+            clearStrBufBeforeUse();
+            appendStrBuf('\n');
+            state =
+                P::transition(mViewSource.get(),
+                              nsHtml5Tokenizer::BOGUS_COMMENT, reconsume, pos);
+            NS_HTML5_BREAK(stateloop);
+          }
+          case '\n': {
+            silentLineFeed();
+            if (P::reportErrors) {
+              errGarbageAfterLtSlash();
+            }
+            clearStrBufBeforeUse();
+            appendStrBuf(c);
+            state =
+                P::transition(mViewSource.get(),
+                              nsHtml5Tokenizer::BOGUS_COMMENT, reconsume, pos);
+            NS_HTML5_CONTINUE(stateloop);
+          }
+          case '\0': {
+            c = 0xfffd;
+            [[fallthrough]];
+          }
+          default: {
+            if (c >= 'A' && c <= 'Z') {
+              c += 0x20;
+            }
+            if (c >= 'a' && c <= 'z') {
+              endTag = true;
+              clearStrBufBeforeUse();
+              appendStrBuf(c);
+              containsHyphen = false;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::TAG_NAME, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            } else {
+              if (P::reportErrors) {
+                errGarbageAfterLtSlash();
+              }
+              clearStrBufBeforeUse();
+              appendStrBuf(c);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_COMMENT, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      }
+      case RCDATA: {
+        for (;;) {
+          if (reconsume) {
+            reconsume = false;
+          } else {
+            if (++pos == endPos) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            c = checkChar(buf, pos);
+          }
+          switch (c) {
+            case '&': {
+              flushChars(buf, pos);
+              MOZ_ASSERT(!charRefBufLen,
+                         "charRefBufLen not reset after previous use!");
+              appendCharRefBuf(c);
+              setAdditionalAndRememberAmpersandLocation('\0');
+              returnState = state;
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::CONSUME_CHARACTER_REFERENCE,
+                                reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '<': {
+              flushChars(buf, pos);
+              returnState = state;
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::RAWTEXT_RCDATA_LESS_THAN_SIGN,
+                                reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\0': {
+              emitReplacementCharacter(buf, pos);
+              continue;
+            }
+            case '\r': {
+              emitCarriageReturn(buf, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            default: {
+              continue;
+            }
+          }
+        }
+      }
+      case RAWTEXT: {
+        for (;;) {
+          if (reconsume) {
+            reconsume = false;
+          } else {
+            if (++pos == endPos) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            c = checkChar(buf, pos);
+          }
+          switch (c) {
+            case '<': {
+              flushChars(buf, pos);
+              returnState = state;
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::RAWTEXT_RCDATA_LESS_THAN_SIGN,
+                                reconsume, pos);
+              NS_HTML5_BREAK(rawtextloop);
+            }
+            case '\0': {
+              emitReplacementCharacter(buf, pos);
+              continue;
+            }
+            case '\r': {
+              emitCarriageReturn(buf, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            default: {
+              continue;
+            }
+          }
+        }
+      rawtextloop_end:;
+        [[fallthrough]];
+      }
+      case RAWTEXT_RCDATA_LESS_THAN_SIGN: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '/': {
+              index = 0;
+              clearStrBufBeforeUse();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::NON_DATA_END_TAG_NAME,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(rawtextrcdatalessthansignloop);
+            }
+            default: {
+              tokenHandler->characters(nsHtml5Tokenizer::LT_GT, 0, 1);
+              cstart = pos;
+              reconsume = true;
+              state =
+                  P::transition(mViewSource.get(), returnState, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      rawtextrcdatalessthansignloop_end:;
+        [[fallthrough]];
+      }
+      case NON_DATA_END_TAG_NAME: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          if (!endTagExpectationAsArray) {
+            tokenHandler->characters(nsHtml5Tokenizer::LT_SOLIDUS, 0, 2);
+            cstart = pos;
+            reconsume = true;
+            state =
+                P::transition(mViewSource.get(), returnState, reconsume, pos);
+            NS_HTML5_CONTINUE(stateloop);
+          } else if (index < endTagExpectationAsArray.length) {
+            char16_t e = endTagExpectationAsArray[index];
+            char16_t folded = c;
+            if (c >= 'A' && c <= 'Z') {
+              folded += 0x20;
+            }
+            if (folded != e) {
+              tokenHandler->characters(nsHtml5Tokenizer::LT_SOLIDUS, 0, 2);
+              emitStrBuf();
+              cstart = pos;
+              reconsume = true;
+              state =
+                  P::transition(mViewSource.get(), returnState, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            appendStrBuf(c);
+            index++;
+            continue;
+          } else {
+            endTag = true;
+            tagName = endTagExpectation;
+            switch (c) {
+              case '\r': {
+                silentCarriageReturn();
+                clearStrBufAfterUse();
+                state = P::transition(mViewSource.get(),
+                                      nsHtml5Tokenizer::BEFORE_ATTRIBUTE_NAME,
+                                      reconsume, pos);
+                NS_HTML5_BREAK(stateloop);
+              }
+              case '\n': {
+                silentLineFeed();
+                [[fallthrough]];
+              }
+              case ' ':
+              case '\t':
+              case '\f': {
+                clearStrBufAfterUse();
+                state = P::transition(mViewSource.get(),
+                                      nsHtml5Tokenizer::BEFORE_ATTRIBUTE_NAME,
+                                      reconsume, pos);
+                NS_HTML5_CONTINUE(stateloop);
+              }
+              case '/': {
+                clearStrBufAfterUse();
+                state = P::transition(mViewSource.get(),
+                                      nsHtml5Tokenizer::SELF_CLOSING_START_TAG,
+                                      reconsume, pos);
+                NS_HTML5_CONTINUE(stateloop);
+              }
+              case '>': {
+                clearStrBufAfterUse();
+                state = P::transition(mViewSource.get(),
+                                      emitCurrentTagToken(false, pos),
+                                      reconsume, pos);
+                if (shouldSuspend) {
+                  NS_HTML5_BREAK(stateloop);
+                }
+                NS_HTML5_CONTINUE(stateloop);
+              }
+              default: {
+                tokenHandler->characters(nsHtml5Tokenizer::LT_SOLIDUS, 0, 2);
+                emitStrBuf();
+                cstart = pos;
+                reconsume = true;
+                state = P::transition(mViewSource.get(), returnState, reconsume,
+                                      pos);
+                NS_HTML5_CONTINUE(stateloop);
+              }
+            }
+          }
+        }
+      }
+      case BOGUS_COMMENT: {
+        for (;;) {
+          if (reconsume) {
+            reconsume = false;
+          } else {
+            if (++pos == endPos) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            c = checkChar(buf, pos);
+          }
+          switch (c) {
+            case '>': {
+              emitComment(0, pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '-': {
+              appendStrBuf(c);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_COMMENT_HYPHEN,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(boguscommentloop);
+            }
+            case '\r': {
+              appendStrBufCarriageReturn();
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              appendStrBufLineFeed();
+              continue;
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            default: {
+              appendStrBuf(c);
+              continue;
+            }
+          }
+        }
+      boguscommentloop_end:;
+        [[fallthrough]];
+      }
+      case BOGUS_COMMENT_HYPHEN: {
+      boguscommenthyphenloop:
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '>': {
+              emitComment(0, pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '-': {
+              appendSecondHyphenToBogusComment();
+              NS_HTML5_CONTINUE(boguscommenthyphenloop);
+            }
+            case '\r': {
+              appendStrBufCarriageReturn();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_COMMENT, reconsume,
+                                    pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              appendStrBufLineFeed();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_COMMENT, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            default: {
+              appendStrBuf(c);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_COMMENT, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      }
+      case SCRIPT_DATA: {
+        for (;;) {
+          if (reconsume) {
+            reconsume = false;
+          } else {
+            if (++pos == endPos) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            c = checkChar(buf, pos);
+          }
+          switch (c) {
+            case '<': {
+              flushChars(buf, pos);
+              returnState = state;
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_LESS_THAN_SIGN, reconsume, pos);
+              NS_HTML5_BREAK(scriptdataloop);
+            }
+            case '\0': {
+              emitReplacementCharacter(buf, pos);
+              continue;
+            }
+            case '\r': {
+              emitCarriageReturn(buf, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            default: {
+              continue;
+            }
+          }
+        }
+      scriptdataloop_end:;
+        [[fallthrough]];
+      }
+      case SCRIPT_DATA_LESS_THAN_SIGN: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '/': {
+              index = 0;
+              clearStrBufBeforeUse();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::NON_DATA_END_TAG_NAME,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '!': {
+              tokenHandler->characters(nsHtml5Tokenizer::LT_GT, 0, 1);
+              cstart = pos;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::SCRIPT_DATA_ESCAPE_START,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(scriptdatalessthansignloop);
+            }
+            default: {
+              tokenHandler->characters(nsHtml5Tokenizer::LT_GT, 0, 1);
+              cstart = pos;
+              reconsume = true;
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::SCRIPT_DATA, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      scriptdatalessthansignloop_end:;
+        [[fallthrough]];
+      }
+      case SCRIPT_DATA_ESCAPE_START: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '-': {
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::SCRIPT_DATA_ESCAPE_START_DASH,
+                                reconsume, pos);
+              NS_HTML5_BREAK(scriptdataescapestartloop);
+            }
+            default: {
+              reconsume = true;
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::SCRIPT_DATA, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      scriptdataescapestartloop_end:;
+        [[fallthrough]];
+      }
+      case SCRIPT_DATA_ESCAPE_START_DASH: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '-': {
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::SCRIPT_DATA_ESCAPED_DASH_DASH,
+                                reconsume, pos);
+              NS_HTML5_BREAK(scriptdataescapestartdashloop);
+            }
+            default: {
+              reconsume = true;
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::SCRIPT_DATA, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      scriptdataescapestartdashloop_end:;
+        [[fallthrough]];
+      }
+      case SCRIPT_DATA_ESCAPED_DASH_DASH: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '-': {
+              continue;
+            }
+            case '<': {
+              flushChars(buf, pos);
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_ESCAPED_LESS_THAN_SIGN,
+                  reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '>': {
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::SCRIPT_DATA, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\0': {
+              emitReplacementCharacter(buf, pos);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::SCRIPT_DATA_ESCAPED,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(scriptdataescapeddashdashloop);
+            }
+            case '\r': {
+              emitCarriageReturn(buf, pos);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::SCRIPT_DATA_ESCAPED,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            default: {
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::SCRIPT_DATA_ESCAPED,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(scriptdataescapeddashdashloop);
+            }
+          }
+        }
+      scriptdataescapeddashdashloop_end:;
+        [[fallthrough]];
+      }
+      case SCRIPT_DATA_ESCAPED: {
+        for (;;) {
+          if (reconsume) {
+            reconsume = false;
+          } else {
+            if (++pos == endPos) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            c = checkChar(buf, pos);
+          }
+          switch (c) {
+            case '-': {
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::SCRIPT_DATA_ESCAPED_DASH,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(scriptdataescapedloop);
+            }
+            case '<': {
+              flushChars(buf, pos);
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_ESCAPED_LESS_THAN_SIGN,
+                  reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\0': {
+              emitReplacementCharacter(buf, pos);
+              continue;
+            }
+            case '\r': {
+              emitCarriageReturn(buf, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            default: {
+              continue;
+            }
+          }
+        }
+      scriptdataescapedloop_end:;
+        [[fallthrough]];
+      }
+      case SCRIPT_DATA_ESCAPED_DASH: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '-': {
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::SCRIPT_DATA_ESCAPED_DASH_DASH,
+                                reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '<': {
+              flushChars(buf, pos);
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_ESCAPED_LESS_THAN_SIGN,
+                  reconsume, pos);
+              NS_HTML5_BREAK(scriptdataescapeddashloop);
+            }
+            case '\0': {
+              emitReplacementCharacter(buf, pos);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::SCRIPT_DATA_ESCAPED,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\r': {
+              emitCarriageReturn(buf, pos);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::SCRIPT_DATA_ESCAPED,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            default: {
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::SCRIPT_DATA_ESCAPED,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      scriptdataescapeddashloop_end:;
+        [[fallthrough]];
+      }
+      case SCRIPT_DATA_ESCAPED_LESS_THAN_SIGN: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '/': {
+              index = 0;
+              clearStrBufBeforeUse();
+              returnState = nsHtml5Tokenizer::SCRIPT_DATA_ESCAPED;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::NON_DATA_END_TAG_NAME,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case 'S':
+            case 's': {
+              tokenHandler->characters(nsHtml5Tokenizer::LT_GT, 0, 1);
+              cstart = pos;
+              index = 1;
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_DOUBLE_ESCAPE_START, reconsume,
+                  pos);
+              NS_HTML5_BREAK(scriptdataescapedlessthanloop);
+            }
+            default: {
+              tokenHandler->characters(nsHtml5Tokenizer::LT_GT, 0, 1);
+              cstart = pos;
+              reconsume = true;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::SCRIPT_DATA_ESCAPED,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      scriptdataescapedlessthanloop_end:;
+        [[fallthrough]];
+      }
+      case SCRIPT_DATA_DOUBLE_ESCAPE_START: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          MOZ_ASSERT(index > 0);
+          if (index < 6) {
+            char16_t folded = c;
+            if (c >= 'A' && c <= 'Z') {
+              folded += 0x20;
+            }
+            if (folded != nsHtml5Tokenizer::SCRIPT_ARR[index]) {
+              reconsume = true;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::SCRIPT_DATA_ESCAPED,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            index++;
+            continue;
+          }
+          switch (c) {
+            case '\r': {
+              emitCarriageReturn(buf, pos);
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_DOUBLE_ESCAPED, reconsume, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f':
+            case '/':
+            case '>': {
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_DOUBLE_ESCAPED, reconsume, pos);
+              NS_HTML5_BREAK(scriptdatadoubleescapestartloop);
+            }
+            default: {
+              reconsume = true;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::SCRIPT_DATA_ESCAPED,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      scriptdatadoubleescapestartloop_end:;
+        [[fallthrough]];
+      }
+      case SCRIPT_DATA_DOUBLE_ESCAPED: {
+        for (;;) {
+          if (reconsume) {
+            reconsume = false;
+          } else {
+            if (++pos == endPos) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            c = checkChar(buf, pos);
+          }
+          switch (c) {
+            case '-': {
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_DOUBLE_ESCAPED_DASH, reconsume,
+                  pos);
+              NS_HTML5_BREAK(scriptdatadoubleescapedloop);
+            }
+            case '<': {
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_DOUBLE_ESCAPED_LESS_THAN_SIGN,
+                  reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\0': {
+              emitReplacementCharacter(buf, pos);
+              continue;
+            }
+            case '\r': {
+              emitCarriageReturn(buf, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            default: {
+              continue;
+            }
+          }
+        }
+      scriptdatadoubleescapedloop_end:;
+        [[fallthrough]];
+      }
+      case SCRIPT_DATA_DOUBLE_ESCAPED_DASH: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '-': {
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_DOUBLE_ESCAPED_DASH_DASH,
+                  reconsume, pos);
+              NS_HTML5_BREAK(scriptdatadoubleescapeddashloop);
+            }
+            case '<': {
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_DOUBLE_ESCAPED_LESS_THAN_SIGN,
+                  reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\0': {
+              emitReplacementCharacter(buf, pos);
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_DOUBLE_ESCAPED, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\r': {
+              emitCarriageReturn(buf, pos);
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_DOUBLE_ESCAPED, reconsume, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            default: {
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_DOUBLE_ESCAPED, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      scriptdatadoubleescapeddashloop_end:;
+        [[fallthrough]];
+      }
+      case SCRIPT_DATA_DOUBLE_ESCAPED_DASH_DASH: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '-': {
+              continue;
+            }
+            case '<': {
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_DOUBLE_ESCAPED_LESS_THAN_SIGN,
+                  reconsume, pos);
+              NS_HTML5_BREAK(scriptdatadoubleescapeddashdashloop);
+            }
+            case '>': {
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::SCRIPT_DATA, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\0': {
+              emitReplacementCharacter(buf, pos);
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_DOUBLE_ESCAPED, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\r': {
+              emitCarriageReturn(buf, pos);
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_DOUBLE_ESCAPED, reconsume, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            default: {
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_DOUBLE_ESCAPED, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      scriptdatadoubleescapeddashdashloop_end:;
+        [[fallthrough]];
+      }
+      case SCRIPT_DATA_DOUBLE_ESCAPED_LESS_THAN_SIGN: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '/': {
+              index = 0;
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::SCRIPT_DATA_DOUBLE_ESCAPE_END,
+                                reconsume, pos);
+              NS_HTML5_BREAK(scriptdatadoubleescapedlessthanloop);
+            }
+            default: {
+              reconsume = true;
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_DOUBLE_ESCAPED, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      scriptdatadoubleescapedlessthanloop_end:;
+        [[fallthrough]];
+      }
+      case SCRIPT_DATA_DOUBLE_ESCAPE_END: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          if (index < 6) {
+            char16_t folded = c;
+            if (c >= 'A' && c <= 'Z') {
+              folded += 0x20;
+            }
+            if (folded != nsHtml5Tokenizer::SCRIPT_ARR[index]) {
+              reconsume = true;
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_DOUBLE_ESCAPED, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            index++;
+            continue;
+          }
+          switch (c) {
+            case '\r': {
+              emitCarriageReturn(buf, pos);
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::SCRIPT_DATA_ESCAPED,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f':
+            case '/':
+            case '>': {
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::SCRIPT_DATA_ESCAPED,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            default: {
+              reconsume = true;
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::SCRIPT_DATA_DOUBLE_ESCAPED, reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      }
+      case MARKUP_DECLARATION_OCTYPE: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          if (index < 6) {
+            char16_t folded = c;
+            if (c >= 'A' && c <= 'Z') {
+              folded += 0x20;
+            }
+            if (folded == nsHtml5Tokenizer::OCTYPE[index]) {
+              appendStrBuf(c);
+            } else {
+              if (P::reportErrors) {
+                errBogusComment();
+              }
+              reconsume = true;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_COMMENT, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            index++;
+            continue;
+          } else {
+            reconsume = true;
+            state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DOCTYPE,
+                                  reconsume, pos);
+            NS_HTML5_BREAK(markupdeclarationdoctypeloop);
+          }
+        }
+      markupdeclarationdoctypeloop_end:;
+        [[fallthrough]];
+      }
+      case DOCTYPE: {
+        for (;;) {
+          if (reconsume) {
+            reconsume = false;
+          } else {
+            if (++pos == endPos) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            c = checkChar(buf, pos);
+          }
+          initDoctypeFields();
+          switch (c) {
+            case '\r': {
+              silentCarriageReturn();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BEFORE_DOCTYPE_NAME,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f': {
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BEFORE_DOCTYPE_NAME,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(doctypeloop);
+            }
+            default: {
+              if (P::reportErrors) {
+                errMissingSpaceBeforeDoctypeName();
+              }
+              reconsume = true;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BEFORE_DOCTYPE_NAME,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(doctypeloop);
+            }
+          }
+        }
+      doctypeloop_end:;
+        [[fallthrough]];
+      }
+      case BEFORE_DOCTYPE_NAME: {
+        for (;;) {
+          if (reconsume) {
+            reconsume = false;
+          } else {
+            if (++pos == endPos) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            c = checkChar(buf, pos);
+          }
+          switch (c) {
+            case '\r': {
+              silentCarriageReturn();
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f': {
+              continue;
+            }
+            case '>': {
+              if (P::reportErrors) {
+                errNamelessDoctype();
+              }
+              forceQuirks = true;
+              emitDoctypeToken(pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            default: {
+              if (c >= 'A' && c <= 'Z') {
+                c += 0x20;
+              }
+              clearStrBufBeforeUse();
+              appendStrBuf(c);
+              state =
+                  P::transition(mViewSource.get(),
+                                nsHtml5Tokenizer::DOCTYPE_NAME, reconsume, pos);
+              NS_HTML5_BREAK(beforedoctypenameloop);
+            }
+          }
+        }
+      beforedoctypenameloop_end:;
+        [[fallthrough]];
+      }
+      case DOCTYPE_NAME: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '\r': {
+              silentCarriageReturn();
+              strBufToDoctypeName();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::AFTER_DOCTYPE_NAME,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f': {
+              strBufToDoctypeName();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::AFTER_DOCTYPE_NAME,
+                                    reconsume, pos);
+              NS_HTML5_BREAK(doctypenameloop);
+            }
+            case '>': {
+              strBufToDoctypeName();
+              emitDoctypeToken(pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            default: {
+              if (c >= 'A' && c <= 'Z') {
+                c += 0x0020;
+              }
+              appendStrBuf(c);
+              continue;
+            }
+          }
+        }
+      doctypenameloop_end:;
+        [[fallthrough]];
+      }
+      case AFTER_DOCTYPE_NAME: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '\r': {
+              silentCarriageReturn();
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f': {
+              continue;
+            }
+            case '>': {
+              emitDoctypeToken(pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case 'p':
+            case 'P': {
+              index = 0;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::DOCTYPE_UBLIC, reconsume,
+                                    pos);
+              NS_HTML5_BREAK(afterdoctypenameloop);
+            }
+            case 's':
+            case 'S': {
+              index = 0;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::DOCTYPE_YSTEM, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            default: {
+              bogusDoctype();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_DOCTYPE, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      afterdoctypenameloop_end:;
+        [[fallthrough]];
+      }
+      case DOCTYPE_UBLIC: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          if (index < 5) {
+            char16_t folded = c;
+            if (c >= 'A' && c <= 'Z') {
+              folded += 0x20;
+            }
+            if (folded != nsHtml5Tokenizer::UBLIC[index]) {
+              bogusDoctype();
+              reconsume = true;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_DOCTYPE, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            index++;
+            continue;
+          } else {
+            reconsume = true;
+            state = P::transition(
+                mViewSource.get(),
+                nsHtml5Tokenizer::AFTER_DOCTYPE_PUBLIC_KEYWORD, reconsume, pos);
+            NS_HTML5_BREAK(doctypeublicloop);
+          }
+        }
+      doctypeublicloop_end:;
+        [[fallthrough]];
+      }
+      case AFTER_DOCTYPE_PUBLIC_KEYWORD: {
+        for (;;) {
+          if (reconsume) {
+            reconsume = false;
+          } else {
+            if (++pos == endPos) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            c = checkChar(buf, pos);
+          }
+          switch (c) {
+            case '\r': {
+              silentCarriageReturn();
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::BEFORE_DOCTYPE_PUBLIC_IDENTIFIER, reconsume,
+                  pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f': {
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::BEFORE_DOCTYPE_PUBLIC_IDENTIFIER, reconsume,
+                  pos);
+              NS_HTML5_BREAK(afterdoctypepublickeywordloop);
+            }
+            case '\"': {
+              if (P::reportErrors) {
+                errNoSpaceBetweenDoctypePublicKeywordAndQuote();
+              }
+              clearStrBufBeforeUse();
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::DOCTYPE_PUBLIC_IDENTIFIER_DOUBLE_QUOTED,
+                  reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\'': {
+              if (P::reportErrors) {
+                errNoSpaceBetweenDoctypePublicKeywordAndQuote();
+              }
+              clearStrBufBeforeUse();
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::DOCTYPE_PUBLIC_IDENTIFIER_SINGLE_QUOTED,
+                  reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '>': {
+              if (P::reportErrors) {
+                errExpectedPublicId();
+              }
+              forceQuirks = true;
+              emitDoctypeToken(pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            default: {
+              bogusDoctype();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_DOCTYPE, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      afterdoctypepublickeywordloop_end:;
+        [[fallthrough]];
+      }
+      case BEFORE_DOCTYPE_PUBLIC_IDENTIFIER: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '\r': {
+              silentCarriageReturn();
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f': {
+              continue;
+            }
+            case '\"': {
+              clearStrBufBeforeUse();
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::DOCTYPE_PUBLIC_IDENTIFIER_DOUBLE_QUOTED,
+                  reconsume, pos);
+              NS_HTML5_BREAK(beforedoctypepublicidentifierloop);
+            }
+            case '\'': {
+              clearStrBufBeforeUse();
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::DOCTYPE_PUBLIC_IDENTIFIER_SINGLE_QUOTED,
+                  reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '>': {
+              if (P::reportErrors) {
+                errExpectedPublicId();
+              }
+              forceQuirks = true;
+              emitDoctypeToken(pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            default: {
+              bogusDoctype();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_DOCTYPE, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      beforedoctypepublicidentifierloop_end:;
+        [[fallthrough]];
+      }
+      case DOCTYPE_PUBLIC_IDENTIFIER_DOUBLE_QUOTED: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '\"': {
+              publicIdentifier = strBufToString();
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::AFTER_DOCTYPE_PUBLIC_IDENTIFIER, reconsume,
+                  pos);
+              NS_HTML5_BREAK(doctypepublicidentifierdoublequotedloop);
+            }
+            case '>': {
+              if (P::reportErrors) {
+                errGtInPublicId();
+              }
+              forceQuirks = true;
+              publicIdentifier = strBufToString();
+              emitDoctypeToken(pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\r': {
+              appendStrBufCarriageReturn();
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              appendStrBufLineFeed();
+              continue;
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            default: {
+              appendStrBuf(c);
+              continue;
+            }
+          }
+        }
+      doctypepublicidentifierdoublequotedloop_end:;
+        [[fallthrough]];
+      }
+      case AFTER_DOCTYPE_PUBLIC_IDENTIFIER: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '\r': {
+              silentCarriageReturn();
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::
+                      BETWEEN_DOCTYPE_PUBLIC_AND_SYSTEM_IDENTIFIERS,
+                  reconsume, pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f': {
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::
+                      BETWEEN_DOCTYPE_PUBLIC_AND_SYSTEM_IDENTIFIERS,
+                  reconsume, pos);
+              NS_HTML5_BREAK(afterdoctypepublicidentifierloop);
+            }
+            case '>': {
+              emitDoctypeToken(pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\"': {
+              if (P::reportErrors) {
+                errNoSpaceBetweenPublicAndSystemIds();
+              }
+              clearStrBufBeforeUse();
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::DOCTYPE_SYSTEM_IDENTIFIER_DOUBLE_QUOTED,
+                  reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\'': {
+              if (P::reportErrors) {
+                errNoSpaceBetweenPublicAndSystemIds();
+              }
+              clearStrBufBeforeUse();
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::DOCTYPE_SYSTEM_IDENTIFIER_SINGLE_QUOTED,
+                  reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            default: {
+              bogusDoctype();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_DOCTYPE, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      afterdoctypepublicidentifierloop_end:;
+        [[fallthrough]];
+      }
+      case BETWEEN_DOCTYPE_PUBLIC_AND_SYSTEM_IDENTIFIERS: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '\r': {
+              silentCarriageReturn();
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f': {
+              continue;
+            }
+            case '>': {
+              emitDoctypeToken(pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\"': {
+              clearStrBufBeforeUse();
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::DOCTYPE_SYSTEM_IDENTIFIER_DOUBLE_QUOTED,
+                  reconsume, pos);
+              NS_HTML5_BREAK(betweendoctypepublicandsystemidentifiersloop);
+            }
+            case '\'': {
+              clearStrBufBeforeUse();
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::DOCTYPE_SYSTEM_IDENTIFIER_SINGLE_QUOTED,
+                  reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            default: {
+              bogusDoctype();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_DOCTYPE, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      betweendoctypepublicandsystemidentifiersloop_end:;
+        [[fallthrough]];
+      }
+      case DOCTYPE_SYSTEM_IDENTIFIER_DOUBLE_QUOTED: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '\"': {
+              systemIdentifier = strBufToString();
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::AFTER_DOCTYPE_SYSTEM_IDENTIFIER, reconsume,
+                  pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '>': {
+              if (P::reportErrors) {
+                errGtInSystemId();
+              }
+              forceQuirks = true;
+              systemIdentifier = strBufToString();
+              emitDoctypeToken(pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\r': {
+              appendStrBufCarriageReturn();
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              appendStrBufLineFeed();
+              continue;
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            default: {
+              appendStrBuf(c);
+              continue;
+            }
+          }
+        }
+      }
+      case AFTER_DOCTYPE_SYSTEM_IDENTIFIER: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '\r': {
+              silentCarriageReturn();
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f': {
+              continue;
+            }
+            case '>': {
+              emitDoctypeToken(pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            default: {
+              bogusDoctypeWithoutQuirks();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_DOCTYPE, reconsume,
+                                    pos);
+              NS_HTML5_BREAK(afterdoctypesystemidentifierloop);
+            }
+          }
+        }
+      afterdoctypesystemidentifierloop_end:;
+        [[fallthrough]];
+      }
+      case BOGUS_DOCTYPE: {
+        for (;;) {
+          if (reconsume) {
+            reconsume = false;
+          } else {
+            if (++pos == endPos) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            c = checkChar(buf, pos);
+          }
+          switch (c) {
+            case '>': {
+              emitDoctypeToken(pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\r': {
+              silentCarriageReturn();
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            default: {
+              continue;
+            }
+          }
+        }
+      }
+      case DOCTYPE_YSTEM: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          if (index < 5) {
+            char16_t folded = c;
+            if (c >= 'A' && c <= 'Z') {
+              folded += 0x20;
+            }
+            if (folded != nsHtml5Tokenizer::YSTEM[index]) {
+              bogusDoctype();
+              reconsume = true;
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_DOCTYPE, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            index++;
+            NS_HTML5_CONTINUE(stateloop);
+          } else {
+            reconsume = true;
+            state = P::transition(
+                mViewSource.get(),
+                nsHtml5Tokenizer::AFTER_DOCTYPE_SYSTEM_KEYWORD, reconsume, pos);
+            NS_HTML5_BREAK(doctypeystemloop);
+          }
+        }
+      doctypeystemloop_end:;
+        [[fallthrough]];
+      }
+      case AFTER_DOCTYPE_SYSTEM_KEYWORD: {
+        for (;;) {
+          if (reconsume) {
+            reconsume = false;
+          } else {
+            if (++pos == endPos) {
+              NS_HTML5_BREAK(stateloop);
+            }
+            c = checkChar(buf, pos);
+          }
+          switch (c) {
+            case '\r': {
+              silentCarriageReturn();
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::BEFORE_DOCTYPE_SYSTEM_IDENTIFIER, reconsume,
+                  pos);
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f': {
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::BEFORE_DOCTYPE_SYSTEM_IDENTIFIER, reconsume,
+                  pos);
+              NS_HTML5_BREAK(afterdoctypesystemkeywordloop);
+            }
+            case '\"': {
+              if (P::reportErrors) {
+                errNoSpaceBetweenDoctypeSystemKeywordAndQuote();
+              }
+              clearStrBufBeforeUse();
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::DOCTYPE_SYSTEM_IDENTIFIER_DOUBLE_QUOTED,
+                  reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\'': {
+              if (P::reportErrors) {
+                errNoSpaceBetweenDoctypeSystemKeywordAndQuote();
+              }
+              clearStrBufBeforeUse();
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::DOCTYPE_SYSTEM_IDENTIFIER_SINGLE_QUOTED,
+                  reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '>': {
+              if (P::reportErrors) {
+                errExpectedPublicId();
+              }
+              forceQuirks = true;
+              emitDoctypeToken(pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            default: {
+              bogusDoctype();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_DOCTYPE, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      afterdoctypesystemkeywordloop_end:;
+        [[fallthrough]];
+      }
+      case BEFORE_DOCTYPE_SYSTEM_IDENTIFIER: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '\r': {
+              silentCarriageReturn();
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              silentLineFeed();
+              [[fallthrough]];
+            }
+            case ' ':
+            case '\t':
+            case '\f': {
+              continue;
+            }
+            case '\"': {
+              clearStrBufBeforeUse();
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::DOCTYPE_SYSTEM_IDENTIFIER_DOUBLE_QUOTED,
+                  reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\'': {
+              clearStrBufBeforeUse();
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::DOCTYPE_SYSTEM_IDENTIFIER_SINGLE_QUOTED,
+                  reconsume, pos);
+              NS_HTML5_BREAK(beforedoctypesystemidentifierloop);
+            }
+            case '>': {
+              if (P::reportErrors) {
+                errExpectedSystemId();
+              }
+              forceQuirks = true;
+              emitDoctypeToken(pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            default: {
+              bogusDoctype();
+              state = P::transition(mViewSource.get(),
+                                    nsHtml5Tokenizer::BOGUS_DOCTYPE, reconsume,
+                                    pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+          }
+        }
+      beforedoctypesystemidentifierloop_end:;
+        [[fallthrough]];
+      }
+      case DOCTYPE_SYSTEM_IDENTIFIER_SINGLE_QUOTED: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '\'': {
+              systemIdentifier = strBufToString();
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::AFTER_DOCTYPE_SYSTEM_IDENTIFIER, reconsume,
+                  pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '>': {
+              if (P::reportErrors) {
+                errGtInSystemId();
+              }
+              forceQuirks = true;
+              systemIdentifier = strBufToString();
+              emitDoctypeToken(pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\r': {
+              appendStrBufCarriageReturn();
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              appendStrBufLineFeed();
+              continue;
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            default: {
+              appendStrBuf(c);
+              continue;
+            }
+          }
+        }
+      }
+      case DOCTYPE_PUBLIC_IDENTIFIER_SINGLE_QUOTED: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '\'': {
+              publicIdentifier = strBufToString();
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::AFTER_DOCTYPE_PUBLIC_IDENTIFIER, reconsume,
+                  pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '>': {
+              if (P::reportErrors) {
+                errGtInPublicId();
+              }
+              forceQuirks = true;
+              publicIdentifier = strBufToString();
+              emitDoctypeToken(pos);
+              state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                    reconsume, pos);
+              NS_HTML5_CONTINUE(stateloop);
+            }
+            case '\r': {
+              appendStrBufCarriageReturn();
+              NS_HTML5_BREAK(stateloop);
+            }
+            case '\n': {
+              appendStrBufLineFeed();
+              continue;
+            }
+            case '\0': {
+              c = 0xfffd;
+              [[fallthrough]];
+            }
+            default: {
+              appendStrBuf(c);
+              continue;
+            }
+          }
+        }
+      }
+      case PROCESSING_INSTRUCTION: {
+        for (;;) {
+          if (++pos == endPos) {
+            NS_HTML5_BREAK(stateloop);
+          }
+          c = checkChar(buf, pos);
+          switch (c) {
+            case '\?': {
+              state = P::transition(
+                  mViewSource.get(),
+                  nsHtml5Tokenizer::PROCESSING_INSTRUCTION_QUESTION_MARK,
+                  reconsume, pos);
+              NS_HTML5_BREAK(processinginstructionloop);
+            }
+            default: {
+              continue;
+            }
+          }
+        }
+      processinginstructionloop_end:;
+        [[fallthrough]];
+      }
+      case PROCESSING_INSTRUCTION_QUESTION_MARK: {
+        if (++pos == endPos) {
+          NS_HTML5_BREAK(stateloop);
+        }
+        c = checkChar(buf, pos);
+        switch (c) {
+          case '>': {
+            state = P::transition(mViewSource.get(), nsHtml5Tokenizer::DATA,
+                                  reconsume, pos);
+            NS_HTML5_CONTINUE(stateloop);
+          }
+          default: {
+            state = P::transition(mViewSource.get(),
+                                  nsHtml5Tokenizer::PROCESSING_INSTRUCTION,
+                                  reconsume, pos);
+            NS_HTML5_CONTINUE(stateloop);
+          }
+        }
+      }
+    }
+  }
+stateloop_end:;
+  flushChars(buf, pos);
+  stateSave = state;
+  returnStateSave = returnState;
+  return pos;
+}
+
+void nsHtml5Tokenizer::initDoctypeFields() {
+  clearStrBufAfterUse();
+  doctypeName = nsGkAtoms::_empty;
+  if (systemIdentifier) {
+    systemIdentifier.Release();
+    systemIdentifier = nullptr;
+  }
+  if (publicIdentifier) {
+    publicIdentifier.Release();
+    publicIdentifier = nullptr;
+  }
+  forceQuirks = false;
+}
+
+void nsHtml5Tokenizer::emitCarriageReturn(char16_t* buf, int32_t pos) {
+  silentCarriageReturn();
+  flushChars(buf, pos);
+  tokenHandler->characters(nsHtml5Tokenizer::LF, 0, 1);
+  cstart = INT32_MAX;
+}
+
+void nsHtml5Tokenizer::emitReplacementCharacter(char16_t* buf, int32_t pos) {
+  flushChars(buf, pos);
+  tokenHandler->zeroOriginatingReplacementCharacter();
+  cstart = pos + 1;
+}
+
+void nsHtml5Tokenizer::emitPlaintextReplacementCharacter(char16_t* buf,
+                                                         int32_t pos) {
+  flushChars(buf, pos);
+  tokenHandler->characters(REPLACEMENT_CHARACTER, 0, 1);
+  cstart = pos + 1;
+}
+
+void nsHtml5Tokenizer::setAdditionalAndRememberAmpersandLocation(char16_t add) {
+  additional = add;
+}
+
+void nsHtml5Tokenizer::bogusDoctype() {
+  errBogusDoctype();
+  forceQuirks = true;
+}
+
+void nsHtml5Tokenizer::bogusDoctypeWithoutQuirks() {
+  errBogusDoctype();
+  forceQuirks = false;
+}
+
+void nsHtml5Tokenizer::handleNcrValue(int32_t returnState) {
+  if (value <= 0xFFFF) {
+    if (value >= 0x80 && value <= 0x9f) {
+      errNcrInC1Range();
+      char16_t* val = nsHtml5NamedCharacters::WINDOWS_1252[value - 0x80];
+      emitOrAppendOne(val, returnState);
+    } else if (value == 0x0) {
+      errNcrZero();
+      emitOrAppendOne(nsHtml5Tokenizer::REPLACEMENT_CHARACTER, returnState);
+    } else if ((value & 0xF800) == 0xD800) {
+      errNcrSurrogate();
+      emitOrAppendOne(nsHtml5Tokenizer::REPLACEMENT_CHARACTER, returnState);
+    } else {
+      char16_t ch = (char16_t)value;
+      bmpChar[0] = ch;
+      emitOrAppendOne(bmpChar, returnState);
+    }
+  } else if (value <= 0x10FFFF) {
+    astralChar[0] = (char16_t)(nsHtml5Tokenizer::LEAD_OFFSET + (value >> 10));
+    astralChar[1] = (char16_t)(0xDC00 + (value & 0x3FF));
+    emitOrAppendTwo(astralChar, returnState);
+  } else {
+    errNcrOutOfRange();
+    emitOrAppendOne(nsHtml5Tokenizer::REPLACEMENT_CHARACTER, returnState);
+  }
+}
+
+void nsHtml5Tokenizer::eof() {
+  int32_t state = stateSave;
+  int32_t returnState = returnStateSave;
+eofloop:
+  for (;;) {
+    switch (state) {
+      case SCRIPT_DATA_LESS_THAN_SIGN:
+      case SCRIPT_DATA_ESCAPED_LESS_THAN_SIGN: {
+        tokenHandler->characters(nsHtml5Tokenizer::LT_GT, 0, 1);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case TAG_OPEN: {
+        errEofAfterLt();
+        tokenHandler->characters(nsHtml5Tokenizer::LT_GT, 0, 1);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case RAWTEXT_RCDATA_LESS_THAN_SIGN: {
+        tokenHandler->characters(nsHtml5Tokenizer::LT_GT, 0, 1);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case NON_DATA_END_TAG_NAME: {
+        tokenHandler->characters(nsHtml5Tokenizer::LT_SOLIDUS, 0, 2);
+        emitStrBuf();
+        NS_HTML5_BREAK(eofloop);
+      }
+      case CLOSE_TAG_OPEN: {
+        errEofAfterLt();
+        tokenHandler->characters(nsHtml5Tokenizer::LT_SOLIDUS, 0, 2);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case TAG_NAME: {
+        errEofInTagName();
+        NS_HTML5_BREAK(eofloop);
+      }
+      case BEFORE_ATTRIBUTE_NAME:
+      case AFTER_ATTRIBUTE_VALUE_QUOTED:
+      case SELF_CLOSING_START_TAG: {
+        errEofWithoutGt();
+        NS_HTML5_BREAK(eofloop);
+      }
+      case ATTRIBUTE_NAME: {
+        errEofInAttributeName();
+        NS_HTML5_BREAK(eofloop);
+      }
+      case AFTER_ATTRIBUTE_NAME:
+      case BEFORE_ATTRIBUTE_VALUE: {
+        errEofWithoutGt();
+        NS_HTML5_BREAK(eofloop);
+      }
+      case ATTRIBUTE_VALUE_DOUBLE_QUOTED:
+      case ATTRIBUTE_VALUE_SINGLE_QUOTED:
+      case ATTRIBUTE_VALUE_UNQUOTED: {
+        errEofInAttributeValue();
+        NS_HTML5_BREAK(eofloop);
+      }
+      case BOGUS_COMMENT: {
+        emitComment(0, 0);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case BOGUS_COMMENT_HYPHEN: {
+        emitComment(0, 0);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case MARKUP_DECLARATION_OPEN: {
+        errBogusComment();
+        emitComment(0, 0);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case MARKUP_DECLARATION_HYPHEN: {
+        errBogusComment();
+        emitComment(0, 0);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case MARKUP_DECLARATION_OCTYPE: {
+        if (index < 6) {
+          errBogusComment();
+          emitComment(0, 0);
+        } else {
+          errEofInDoctype();
+          doctypeName = nsGkAtoms::_empty;
+          if (systemIdentifier) {
+            systemIdentifier.Release();
+            systemIdentifier = nullptr;
+          }
+          if (publicIdentifier) {
+            publicIdentifier.Release();
+            publicIdentifier = nullptr;
+          }
+          forceQuirks = true;
+          emitDoctypeToken(0);
+          NS_HTML5_BREAK(eofloop);
+        }
+        NS_HTML5_BREAK(eofloop);
+      }
+      case COMMENT_START:
+      case COMMENT: {
+        errEofInComment();
+        emitComment(0, 0);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case COMMENT_END: {
+        errEofInComment();
+        emitComment(2, 0);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case COMMENT_END_DASH:
+      case COMMENT_START_DASH: {
+        errEofInComment();
+        emitComment(1, 0);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case COMMENT_END_BANG: {
+        errEofInComment();
+        emitComment(3, 0);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case DOCTYPE:
+      case BEFORE_DOCTYPE_NAME: {
+        errEofInDoctype();
+        forceQuirks = true;
+        emitDoctypeToken(0);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case DOCTYPE_NAME: {
+        errEofInDoctype();
+        strBufToDoctypeName();
+        forceQuirks = true;
+        emitDoctypeToken(0);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case DOCTYPE_UBLIC:
+      case DOCTYPE_YSTEM:
+      case AFTER_DOCTYPE_NAME:
+      case AFTER_DOCTYPE_PUBLIC_KEYWORD:
+      case AFTER_DOCTYPE_SYSTEM_KEYWORD:
+      case BEFORE_DOCTYPE_PUBLIC_IDENTIFIER: {
+        errEofInDoctype();
+        forceQuirks = true;
+        emitDoctypeToken(0);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case DOCTYPE_PUBLIC_IDENTIFIER_DOUBLE_QUOTED:
+      case DOCTYPE_PUBLIC_IDENTIFIER_SINGLE_QUOTED: {
+        errEofInPublicId();
+        forceQuirks = true;
+        publicIdentifier = strBufToString();
+        emitDoctypeToken(0);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case AFTER_DOCTYPE_PUBLIC_IDENTIFIER:
+      case BEFORE_DOCTYPE_SYSTEM_IDENTIFIER:
+      case BETWEEN_DOCTYPE_PUBLIC_AND_SYSTEM_IDENTIFIERS: {
+        errEofInDoctype();
+        forceQuirks = true;
+        emitDoctypeToken(0);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case DOCTYPE_SYSTEM_IDENTIFIER_DOUBLE_QUOTED:
+      case DOCTYPE_SYSTEM_IDENTIFIER_SINGLE_QUOTED: {
+        errEofInSystemId();
+        forceQuirks = true;
+        systemIdentifier = strBufToString();
+        emitDoctypeToken(0);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case AFTER_DOCTYPE_SYSTEM_IDENTIFIER: {
+        errEofInDoctype();
+        forceQuirks = true;
+        emitDoctypeToken(0);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case BOGUS_DOCTYPE: {
+        emitDoctypeToken(0);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case CONSUME_CHARACTER_REFERENCE: {
+        emitOrAppendCharRefBuf(returnState);
+        state = returnState;
+        continue;
+      }
+      case CHARACTER_REFERENCE_HILO_LOOKUP: {
+        errNoNamedCharacterMatch();
+        emitOrAppendCharRefBuf(returnState);
+        state = returnState;
+        continue;
+      }
+      case CHARACTER_REFERENCE_TAIL: {
+        for (;;) {
+          char16_t c = '\0';
+          entCol++;
+          for (;;) {
+            if (hi == -1) {
+              NS_HTML5_BREAK(hiloop);
+            }
+            if (entCol == nsHtml5NamedCharacters::NAMES[hi].length()) {
+              NS_HTML5_BREAK(hiloop);
+            }
+            if (entCol > nsHtml5NamedCharacters::NAMES[hi].length()) {
+              NS_HTML5_BREAK(outer);
+            } else if (c < nsHtml5NamedCharacters::NAMES[hi].charAt(entCol)) {
+              hi--;
+            } else {
+              NS_HTML5_BREAK(hiloop);
+            }
+          }
+        hiloop_end:;
+          for (;;) {
+            if (hi < lo) {
+              NS_HTML5_BREAK(outer);
+            }
+            if (entCol == nsHtml5NamedCharacters::NAMES[lo].length()) {
+              candidate = lo;
+              charRefBufMark = charRefBufLen;
+              lo++;
+            } else if (entCol > nsHtml5NamedCharacters::NAMES[lo].length()) {
+              NS_HTML5_BREAK(outer);
+            } else if (c > nsHtml5NamedCharacters::NAMES[lo].charAt(entCol)) {
+              lo++;
+            } else {
+              NS_HTML5_BREAK(loloop);
+            }
+          }
+        loloop_end:;
+          if (hi < lo) {
+            NS_HTML5_BREAK(outer);
+          }
+          continue;
+        }
+      outer_end:;
+        if (candidate == -1) {
+          errNoNamedCharacterMatch();
+          emitOrAppendCharRefBuf(returnState);
+          state = returnState;
+          NS_HTML5_CONTINUE(eofloop);
+        } else {
+          const nsHtml5CharacterName& candidateName =
+              nsHtml5NamedCharacters::NAMES[candidate];
+          if (!candidateName.length() ||
+              candidateName.charAt(candidateName.length() - 1) != ';') {
+            if ((returnState & DATA_AND_RCDATA_MASK)) {
+              char16_t ch;
+              if (charRefBufMark == charRefBufLen) {
+                ch = '\0';
+              } else {
+                ch = charRefBuf[charRefBufMark];
+              }
+              if ((ch >= '0' && ch <= '9') || (ch >= 'A' && ch <= 'Z') ||
+                  (ch >= 'a' && ch <= 'z')) {
+                errNoNamedCharacterMatch();
+                appendCharRefBufToStrBuf();
+                state = returnState;
+                NS_HTML5_CONTINUE(eofloop);
+              }
+            }
+            if ((returnState & DATA_AND_RCDATA_MASK)) {
+              errUnescapedAmpersandInterpretedAsCharacterReference();
+            } else {
+              errNotSemicolonTerminated();
+            }
+          }
+          const char16_t* val = nsHtml5NamedCharacters::VALUES[candidate];
+          if (!val[1]) {
+            emitOrAppendOne(val, returnState);
+          } else {
+            emitOrAppendTwo(val, returnState);
+          }
+          if (charRefBufMark < charRefBufLen) {
+            if ((returnState & DATA_AND_RCDATA_MASK)) {
+              appendStrBuf(charRefBuf, charRefBufMark,
+                           charRefBufLen - charRefBufMark);
+            } else {
+              tokenHandler->characters(charRefBuf, charRefBufMark,
+                                       charRefBufLen - charRefBufMark);
+            }
+          }
+          charRefBufLen = 0;
+          state = returnState;
+          NS_HTML5_CONTINUE(eofloop);
+        }
+      }
+      case CONSUME_NCR:
+      case DECIMAL_NRC_LOOP:
+      case HEX_NCR_LOOP: {
+        if (!seenDigits) {
+          errNoDigitsInNCR();
+          emitOrAppendCharRefBuf(returnState);
+          state = returnState;
+          continue;
+        } else {
+          errCharRefLacksSemicolon();
+        }
+        handleNcrValue(returnState);
+        state = returnState;
+        continue;
+      }
+      case CDATA_RSQB: {
+        tokenHandler->characters(nsHtml5Tokenizer::RSQB_RSQB, 0, 1);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case CDATA_RSQB_RSQB: {
+        tokenHandler->characters(nsHtml5Tokenizer::RSQB_RSQB, 0, 2);
+        NS_HTML5_BREAK(eofloop);
+      }
+      case DATA:
+      default: {
+        NS_HTML5_BREAK(eofloop);
+      }
+    }
+  }
+eofloop_end:;
+  tokenHandler->eof();
+  return;
+}
+
+void nsHtml5Tokenizer::emitDoctypeToken(int32_t pos) {
+  cstart = pos + 1;
+  tokenHandler->doctype(doctypeName, publicIdentifier, systemIdentifier,
+                        forceQuirks);
+  doctypeName = nullptr;
+  publicIdentifier.Release();
+  publicIdentifier = nullptr;
+  systemIdentifier.Release();
+  systemIdentifier = nullptr;
+}
+
+bool nsHtml5Tokenizer::internalEncodingDeclaration(
+    nsHtml5String internalCharset) {
+  if (encodingDeclarationHandler) {
+    return encodingDeclarationHandler->internalEncodingDeclaration(
+        internalCharset);
+  }
+  return false;
+}
+
+void nsHtml5Tokenizer::emitOrAppendTwo(const char16_t* val,
+                                       int32_t returnState) {
+  if ((returnState & DATA_AND_RCDATA_MASK)) {
+    appendStrBuf(val[0]);
+    appendStrBuf(val[1]);
+  } else {
+    tokenHandler->characters(val, 0, 2);
+  }
+}
+
+void nsHtml5Tokenizer::emitOrAppendOne(const char16_t* val,
+                                       int32_t returnState) {
+  if ((returnState & DATA_AND_RCDATA_MASK)) {
+    appendStrBuf(val[0]);
+  } else {
+    tokenHandler->characters(val, 0, 1);
+  }
+}
+
+void nsHtml5Tokenizer::end() {
+  strBuf = nullptr;
+  doctypeName = nullptr;
+  if (systemIdentifier) {
+    systemIdentifier.Release();
+    systemIdentifier = nullptr;
+  }
+  if (publicIdentifier) {
+    publicIdentifier.Release();
+    publicIdentifier = nullptr;
+  }
+  tagName = nullptr;
+  nonInternedTagName->setNameForNonInterned(nullptr, false);
+  attributeName = nullptr;
+  nonInternedAttributeName->setNameForNonInterned(nullptr);
+  tokenHandler->endTokenization();
+  if (attributes) {
+    attributes->clear(0);
+  }
+}
+
+void nsHtml5Tokenizer::requestSuspension() { shouldSuspend = true; }
+
+bool nsHtml5Tokenizer::isInDataState() { return (stateSave == DATA); }
+
+void nsHtml5Tokenizer::resetToDataState() {
+  clearStrBufAfterUse();
+  charRefBufLen = 0;
+  stateSave = nsHtml5Tokenizer::DATA;
+  lastCR = false;
+  index = 0;
+  forceQuirks = false;
+  additional = '\0';
+  entCol = -1;
+  firstCharKey = -1;
+  lo = 0;
+  hi = 0;
+  candidate = -1;
+  charRefBufMark = 0;
+  value = 0;
+  seenDigits = false;
+  endTag = false;
+  shouldSuspend = false;
+  initDoctypeFields();
+  containsHyphen = false;
+  tagName = nullptr;
+  attributeName = nullptr;
+  if (newAttributesEachTime) {
+    if (attributes) {
+      delete attributes;
+      attributes = nullptr;
+    }
+  }
+}
+
+void nsHtml5Tokenizer::loadState(nsHtml5Tokenizer* other) {
+  strBufLen = other->strBufLen;
+  if (strBufLen > strBuf.length) {
+    strBuf = jArray<char16_t, int32_t>::newJArray(strBufLen);
+  }
+  nsHtml5ArrayCopy::arraycopy(other->strBuf, strBuf, strBufLen);
+  charRefBufLen = other->charRefBufLen;
+  nsHtml5ArrayCopy::arraycopy(other->charRefBuf, charRefBuf, charRefBufLen);
+  stateSave = other->stateSave;
+  returnStateSave = other->returnStateSave;
+  endTagExpectation = other->endTagExpectation;
+  endTagExpectationAsArray = other->endTagExpectationAsArray;
+  lastCR = other->lastCR;
+  index = other->index;
+  forceQuirks = other->forceQuirks;
+  additional = other->additional;
+  entCol = other->entCol;
+  firstCharKey = other->firstCharKey;
+  lo = other->lo;
+  hi = other->hi;
+  candidate = other->candidate;
+  charRefBufMark = other->charRefBufMark;
+  value = other->value;
+  seenDigits = other->seenDigits;
+  endTag = other->endTag;
+  shouldSuspend = false;
+  doctypeName = other->doctypeName;
+  systemIdentifier.Release();
+  if (!other->systemIdentifier) {
+    systemIdentifier = nullptr;
+  } else {
+    systemIdentifier =
+        nsHtml5Portability::newStringFromString(other->systemIdentifier);
+  }
+  publicIdentifier.Release();
+  if (!other->publicIdentifier) {
+    publicIdentifier = nullptr;
+  } else {
+    publicIdentifier =
+        nsHtml5Portability::newStringFromString(other->publicIdentifier);
+  }
+  containsHyphen = other->containsHyphen;
+  if (!other->tagName) {
+    tagName = nullptr;
+  } else if (other->tagName->isInterned()) {
+    tagName = other->tagName;
+  } else {
+    nonInternedTagName->setNameForNonInterned(other->tagName->getName(),
+                                              other->tagName->isCustom());
+    tagName = nonInternedTagName;
+  }
+  if (!other->attributeName) {
+    attributeName = nullptr;
+  } else if (other->attributeName->isInterned()) {
+    attributeName = other->attributeName;
+  } else {
+    nonInternedAttributeName->setNameForNonInterned(
+        other->attributeName->getLocal(nsHtml5AttributeName::HTML));
+    attributeName = nonInternedAttributeName;
+  }
+  delete attributes;
+  if (!other->attributes) {
+    attributes = nullptr;
+  } else {
+    attributes = other->attributes->cloneAttributes();
+  }
+}
+
+void nsHtml5Tokenizer::initializeWithoutStarting() {
+  confident = false;
+  strBuf = nullptr;
+  line = 1;
+  attributeLine = 1;
+  resetToDataState();
+}
+
+void nsHtml5Tokenizer::setEncodingDeclarationHandler(
+    nsHtml5StreamParser* encodingDeclarationHandler) {
+  this->encodingDeclarationHandler = encodingDeclarationHandler;
+}
+
+nsHtml5Tokenizer::~nsHtml5Tokenizer() {
+  MOZ_COUNT_DTOR(nsHtml5Tokenizer);
+  delete nonInternedTagName;
+  nonInternedTagName = nullptr;
+  delete nonInternedAttributeName;
+  nonInternedAttributeName = nullptr;
+  delete attributes;
+  attributes = nullptr;
+}
+
+void nsHtml5Tokenizer::initializeStatics() {}
+
+void nsHtml5Tokenizer::releaseStatics() {}
+
+#include "nsHtml5TokenizerCppSupplement.h"