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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /parser/html/nsHtml5TokenizerHSupplement.h
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'parser/html/nsHtml5TokenizerHSupplement.h')
-rw-r--r--parser/html/nsHtml5TokenizerHSupplement.h220
1 files changed, 220 insertions, 0 deletions
diff --git a/parser/html/nsHtml5TokenizerHSupplement.h b/parser/html/nsHtml5TokenizerHSupplement.h
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+++ b/parser/html/nsHtml5TokenizerHSupplement.h
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+private:
+inline void silentCarriageReturn() {
+ nextCharOnNewLine = true;
+ lastCR = true;
+}
+
+inline void silentLineFeed() { nextCharOnNewLine = true; }
+
+inline char16_t checkChar(char16_t* buf, int32_t pos) {
+ // The name of this method comes from the validator.
+ // We aren't checking a char here. We read the next
+ // UTF-16 code unit and, before returning it, adjust
+ // the line and column numbers.
+ char16_t c = buf[pos];
+ if (MOZ_UNLIKELY(nextCharOnNewLine)) {
+ // By changing the line and column here instead
+ // of doing so eagerly when seeing the line break
+ // causes the line break itself to be considered
+ // column-wise at the end of a line.
+ line++;
+ col = 1;
+ nextCharOnNewLine = false;
+ } else if (MOZ_LIKELY(!NS_IS_LOW_SURROGATE(c))) {
+ // SpiderMonkey wants to count scalar values
+ // instead of UTF-16 code units. We omit low
+ // surrogates from the count so that only the
+ // high surrogate increments the count for
+ // two-code-unit scalar values.
+ //
+ // It's somewhat questionable from the performance
+ // perspective to make the human-perceivable column
+ // count correct for non-BMP characters in the case
+ // where there is a single scalar value per extended
+ // grapheme cluster when even on the BMP there are
+ // various cases where the scalar count doesn't make
+ // much sense as a human-perceived "column count" due
+ // to extended grapheme clusters consisting of more
+ // than one scalar value.
+ col++;
+ }
+ return c;
+}
+
+int32_t col;
+bool nextCharOnNewLine;
+
+public:
+inline int32_t getColumnNumber() { return col; }
+
+inline void setColumnNumberAndResetNextLine(int32_t aCol) {
+ col = aCol;
+ // The restored position only ever points to the position of
+ // script tag's > character, so we can unconditionally use
+ // `false` below.
+ nextCharOnNewLine = false;
+}
+
+inline nsHtml5HtmlAttributes* GetAttributes() { return attributes; }
+
+/**
+ * Makes sure the buffers are large enough to be able to tokenize aLength
+ * UTF-16 code units before having to make the buffers larger.
+ *
+ * @param aLength the number of UTF-16 code units to be tokenized before the
+ * next call to this method.
+ * @return true if successful; false if out of memory
+ */
+bool EnsureBufferSpace(int32_t aLength);
+
+bool TemplatePushedOrHeadPopped();
+
+void RememberGt(int32_t aPos);
+
+void AtKilobyteBoundary() { suspendAfterCurrentTokenIfNotInText(); }
+
+bool IsInTokenStartedAtKilobyteBoundary() {
+ return suspensionAfterCurrentNonTextTokenPending();
+}
+
+mozilla::UniquePtr<nsHtml5Highlighter> mViewSource;
+
+/**
+ * Starts handling text/plain. This is a one-way initialization. There is
+ * no corresponding EndPlainText() call.
+ */
+void StartPlainText();
+
+void EnableViewSource(nsHtml5Highlighter* aHighlighter);
+
+bool ShouldFlushViewSource();
+
+mozilla::Result<bool, nsresult> FlushViewSource();
+
+void StartViewSource(const nsAutoString& aTitle);
+
+void StartViewSourceCharacters();
+
+[[nodiscard]] bool EndViewSource();
+
+void RewindViewSource();
+
+void SetViewSourceOpSink(nsAHtml5TreeOpSink* aOpSink);
+
+void errGarbageAfterLtSlash();
+
+void errLtSlashGt();
+
+void errWarnLtSlashInRcdata();
+
+void errCharRefLacksSemicolon();
+
+void errNoDigitsInNCR();
+
+void errGtInSystemId();
+
+void errGtInPublicId();
+
+void errNamelessDoctype();
+
+void errConsecutiveHyphens();
+
+void errPrematureEndOfComment();
+
+void errBogusComment();
+
+void errUnquotedAttributeValOrNull(char16_t c);
+
+void errSlashNotFollowedByGt();
+
+void errNoSpaceBetweenAttributes();
+
+void errLtOrEqualsOrGraveInUnquotedAttributeOrNull(char16_t c);
+
+void errAttributeValueMissing();
+
+void errBadCharBeforeAttributeNameOrNull(char16_t c);
+
+void errEqualsSignBeforeAttributeName();
+
+void errBadCharAfterLt(char16_t c);
+
+void errLtGt();
+
+void errProcessingInstruction();
+
+void errUnescapedAmpersandInterpretedAsCharacterReference();
+
+void errNotSemicolonTerminated();
+
+void errNoNamedCharacterMatch();
+
+void errQuoteBeforeAttributeName(char16_t c);
+
+void errQuoteOrLtInAttributeNameOrNull(char16_t c);
+
+void errExpectedPublicId();
+
+void errBogusDoctype();
+
+void maybeErrAttributesOnEndTag(nsHtml5HtmlAttributes* attrs);
+
+void maybeErrSlashInEndTag(bool selfClosing);
+
+char16_t errNcrNonCharacter(char16_t ch);
+
+void errAstralNonCharacter(int32_t ch);
+
+void errNcrSurrogate();
+
+char16_t errNcrControlChar(char16_t ch);
+
+void errNcrCr();
+
+void errNcrInC1Range();
+
+void errEofInPublicId();
+
+void errEofInComment();
+
+void errEofInDoctype();
+
+void errEofInAttributeValue();
+
+void errEofInAttributeName();
+
+void errEofWithoutGt();
+
+void errEofInTagName();
+
+void errEofInEndTag();
+
+void errEofAfterLt();
+
+void errNcrOutOfRange();
+
+void errNcrUnassigned();
+
+void errDuplicateAttribute();
+
+void errEofInSystemId();
+
+void errExpectedSystemId();
+
+void errMissingSpaceBeforeDoctypeName();
+
+void errNestedComment();
+
+void errNcrControlChar();
+
+void errNcrZero();
+
+void errNoSpaceBetweenDoctypeSystemKeywordAndQuote();
+
+void errNoSpaceBetweenPublicAndSystemIds();
+
+void errNoSpaceBetweenDoctypePublicKeywordAndQuote();