Updated 5 files and added 1110 files (automated)

4 files changed, 3384 insertions, 0 deletions

diff --git a/includes/external/addressbook/node_modules/parse5/dist/tokenizer/index.d.ts b/includes/external/addressbook/node_modules/parse5/dist/tokenizer/index.d.ts
new file mode 100644
index 0000000..5afab96
--- /dev/null
+++ b/includes/external/addressbook/node_modules/parse5/dist/tokenizer/index.d.ts
@@ -0,0 +1,248 @@
+import { Preprocessor } from './preprocessor.js';
+import { type CharacterToken, type DoctypeToken, type TagToken, type EOFToken, type CommentToken } from '../common/token.js';
+import { type ParserErrorHandler } from '../common/error-codes.js';
+declare const enum State {
+    DATA = 0,
+    RCDATA = 1,
+    RAWTEXT = 2,
+    SCRIPT_DATA = 3,
+    PLAINTEXT = 4,
+    TAG_OPEN = 5,
+    END_TAG_OPEN = 6,
+    TAG_NAME = 7,
+    RCDATA_LESS_THAN_SIGN = 8,
+    RCDATA_END_TAG_OPEN = 9,
+    RCDATA_END_TAG_NAME = 10,
+    RAWTEXT_LESS_THAN_SIGN = 11,
+    RAWTEXT_END_TAG_OPEN = 12,
+    RAWTEXT_END_TAG_NAME = 13,
+    SCRIPT_DATA_LESS_THAN_SIGN = 14,
+    SCRIPT_DATA_END_TAG_OPEN = 15,
+    SCRIPT_DATA_END_TAG_NAME = 16,
+    SCRIPT_DATA_ESCAPE_START = 17,
+    SCRIPT_DATA_ESCAPE_START_DASH = 18,
+    SCRIPT_DATA_ESCAPED = 19,
+    SCRIPT_DATA_ESCAPED_DASH = 20,
+    SCRIPT_DATA_ESCAPED_DASH_DASH = 21,
+    SCRIPT_DATA_ESCAPED_LESS_THAN_SIGN = 22,
+    SCRIPT_DATA_ESCAPED_END_TAG_OPEN = 23,
+    SCRIPT_DATA_ESCAPED_END_TAG_NAME = 24,
+    SCRIPT_DATA_DOUBLE_ESCAPE_START = 25,
+    SCRIPT_DATA_DOUBLE_ESCAPED = 26,
+    SCRIPT_DATA_DOUBLE_ESCAPED_DASH = 27,
+    SCRIPT_DATA_DOUBLE_ESCAPED_DASH_DASH = 28,
+    SCRIPT_DATA_DOUBLE_ESCAPED_LESS_THAN_SIGN = 29,
+    SCRIPT_DATA_DOUBLE_ESCAPE_END = 30,
+    BEFORE_ATTRIBUTE_NAME = 31,
+    ATTRIBUTE_NAME = 32,
+    AFTER_ATTRIBUTE_NAME = 33,
+    BEFORE_ATTRIBUTE_VALUE = 34,
+    ATTRIBUTE_VALUE_DOUBLE_QUOTED = 35,
+    ATTRIBUTE_VALUE_SINGLE_QUOTED = 36,
+    ATTRIBUTE_VALUE_UNQUOTED = 37,
+    AFTER_ATTRIBUTE_VALUE_QUOTED = 38,
+    SELF_CLOSING_START_TAG = 39,
+    BOGUS_COMMENT = 40,
+    MARKUP_DECLARATION_OPEN = 41,
+    COMMENT_START = 42,
+    COMMENT_START_DASH = 43,
+    COMMENT = 44,
+    COMMENT_LESS_THAN_SIGN = 45,
+    COMMENT_LESS_THAN_SIGN_BANG = 46,
+    COMMENT_LESS_THAN_SIGN_BANG_DASH = 47,
+    COMMENT_LESS_THAN_SIGN_BANG_DASH_DASH = 48,
+    COMMENT_END_DASH = 49,
+    COMMENT_END = 50,
+    COMMENT_END_BANG = 51,
+    DOCTYPE = 52,
+    BEFORE_DOCTYPE_NAME = 53,
+    DOCTYPE_NAME = 54,
+    AFTER_DOCTYPE_NAME = 55,
+    AFTER_DOCTYPE_PUBLIC_KEYWORD = 56,
+    BEFORE_DOCTYPE_PUBLIC_IDENTIFIER = 57,
+    DOCTYPE_PUBLIC_IDENTIFIER_DOUBLE_QUOTED = 58,
+    DOCTYPE_PUBLIC_IDENTIFIER_SINGLE_QUOTED = 59,
+    AFTER_DOCTYPE_PUBLIC_IDENTIFIER = 60,
+    BETWEEN_DOCTYPE_PUBLIC_AND_SYSTEM_IDENTIFIERS = 61,
+    AFTER_DOCTYPE_SYSTEM_KEYWORD = 62,
+    BEFORE_DOCTYPE_SYSTEM_IDENTIFIER = 63,
+    DOCTYPE_SYSTEM_IDENTIFIER_DOUBLE_QUOTED = 64,
+    DOCTYPE_SYSTEM_IDENTIFIER_SINGLE_QUOTED = 65,
+    AFTER_DOCTYPE_SYSTEM_IDENTIFIER = 66,
+    BOGUS_DOCTYPE = 67,
+    CDATA_SECTION = 68,
+    CDATA_SECTION_BRACKET = 69,
+    CDATA_SECTION_END = 70,
+    CHARACTER_REFERENCE = 71,
+    NAMED_CHARACTER_REFERENCE = 72,
+    AMBIGUOUS_AMPERSAND = 73,
+    NUMERIC_CHARACTER_REFERENCE = 74,
+    HEXADEMICAL_CHARACTER_REFERENCE_START = 75,
+    HEXADEMICAL_CHARACTER_REFERENCE = 76,
+    DECIMAL_CHARACTER_REFERENCE = 77,
+    NUMERIC_CHARACTER_REFERENCE_END = 78
+}
+export declare const TokenizerMode: {
+    readonly DATA: State.DATA;
+    readonly RCDATA: State.RCDATA;
+    readonly RAWTEXT: State.RAWTEXT;
+    readonly SCRIPT_DATA: State.SCRIPT_DATA;
+    readonly PLAINTEXT: State.PLAINTEXT;
+    readonly CDATA_SECTION: State.CDATA_SECTION;
+};
+export interface TokenizerOptions {
+    sourceCodeLocationInfo?: boolean;
+}
+export interface TokenHandler {
+    onComment(token: CommentToken): void;
+    onDoctype(token: DoctypeToken): void;
+    onStartTag(token: TagToken): void;
+    onEndTag(token: TagToken): void;
+    onEof(token: EOFToken): void;
+    onCharacter(token: CharacterToken): void;
+    onNullCharacter(token: CharacterToken): void;
+    onWhitespaceCharacter(token: CharacterToken): void;
+    onParseError?: ParserErrorHandler | null;
+}
+export declare class Tokenizer {
+    private options;
+    private handler;
+    preprocessor: Preprocessor;
+    private paused;
+    /** Ensures that the parsing loop isn't run multiple times at once. */
+    private inLoop;
+    /**
+     * Indicates that the current adjusted node exists, is not an element in the HTML namespace,
+     * and that it is not an integration point for either MathML or HTML.
+     *
+     * @see {@link https://html.spec.whatwg.org/multipage/parsing.html#tree-construction}
+     */
+    inForeignNode: boolean;
+    lastStartTagName: string;
+    active: boolean;
+    state: State;
+    private returnState;
+    private charRefCode;
+    private consumedAfterSnapshot;
+    private currentLocation;
+    private currentCharacterToken;
+    private currentToken;
+    private currentAttr;
+    constructor(options: TokenizerOptions, handler: TokenHandler);
+    private _err;
+    private getCurrentLocation;
+    private _runParsingLoop;
+    pause(): void;
+    resume(writeCallback?: () => void): void;
+    write(chunk: string, isLastChunk: boolean, writeCallback?: () => void): void;
+    insertHtmlAtCurrentPos(chunk: string): void;
+    private _ensureHibernation;
+    private _consume;
+    private _unconsume;
+    private _reconsumeInState;
+    private _advanceBy;
+    private _consumeSequenceIfMatch;
+    private _createStartTagToken;
+    private _createEndTagToken;
+    private _createCommentToken;
+    private _createDoctypeToken;
+    private _createCharacterToken;
+    private _createAttr;
+    private _leaveAttrName;
+    private _leaveAttrValue;
+    private prepareToken;
+    private emitCurrentTagToken;
+    private emitCurrentComment;
+    private emitCurrentDoctype;
+    private _emitCurrentCharacterToken;
+    private _emitEOFToken;
+    private _appendCharToCurrentCharacterToken;
+    private _emitCodePoint;
+    private _emitChars;
+    private _matchNamedCharacterReference;
+    private _isCharacterReferenceInAttribute;
+    private _flushCodePointConsumedAsCharacterReference;
+    private _callState;
+    private _stateData;
+    private _stateRcdata;
+    private _stateRawtext;
+    private _stateScriptData;
+    private _statePlaintext;
+    private _stateTagOpen;
+    private _stateEndTagOpen;
+    private _stateTagName;
+    private _stateRcdataLessThanSign;
+    private _stateRcdataEndTagOpen;
+    private handleSpecialEndTag;
+    private _stateRcdataEndTagName;
+    private _stateRawtextLessThanSign;
+    private _stateRawtextEndTagOpen;
+    private _stateRawtextEndTagName;
+    private _stateScriptDataLessThanSign;
+    private _stateScriptDataEndTagOpen;
+    private _stateScriptDataEndTagName;
+    private _stateScriptDataEscapeStart;
+    private _stateScriptDataEscapeStartDash;
+    private _stateScriptDataEscaped;
+    private _stateScriptDataEscapedDash;
+    private _stateScriptDataEscapedDashDash;
+    private _stateScriptDataEscapedLessThanSign;
+    private _stateScriptDataEscapedEndTagOpen;
+    private _stateScriptDataEscapedEndTagName;
+    private _stateScriptDataDoubleEscapeStart;
+    private _stateScriptDataDoubleEscaped;
+    private _stateScriptDataDoubleEscapedDash;
+    private _stateScriptDataDoubleEscapedDashDash;
+    private _stateScriptDataDoubleEscapedLessThanSign;
+    private _stateScriptDataDoubleEscapeEnd;
+    private _stateBeforeAttributeName;
+    private _stateAttributeName;
+    private _stateAfterAttributeName;
+    private _stateBeforeAttributeValue;
+    private _stateAttributeValueDoubleQuoted;
+    private _stateAttributeValueSingleQuoted;
+    private _stateAttributeValueUnquoted;
+    private _stateAfterAttributeValueQuoted;
+    private _stateSelfClosingStartTag;
+    private _stateBogusComment;
+    private _stateMarkupDeclarationOpen;
+    private _stateCommentStart;
+    private _stateCommentStartDash;
+    private _stateComment;
+    private _stateCommentLessThanSign;
+    private _stateCommentLessThanSignBang;
+    private _stateCommentLessThanSignBangDash;
+    private _stateCommentLessThanSignBangDashDash;
+    private _stateCommentEndDash;
+    private _stateCommentEnd;
+    private _stateCommentEndBang;
+    private _stateDoctype;
+    private _stateBeforeDoctypeName;
+    private _stateDoctypeName;
+    private _stateAfterDoctypeName;
+    private _stateAfterDoctypePublicKeyword;
+    private _stateBeforeDoctypePublicIdentifier;
+    private _stateDoctypePublicIdentifierDoubleQuoted;
+    private _stateDoctypePublicIdentifierSingleQuoted;
+    private _stateAfterDoctypePublicIdentifier;
+    private _stateBetweenDoctypePublicAndSystemIdentifiers;
+    private _stateAfterDoctypeSystemKeyword;
+    private _stateBeforeDoctypeSystemIdentifier;
+    private _stateDoctypeSystemIdentifierDoubleQuoted;
+    private _stateDoctypeSystemIdentifierSingleQuoted;
+    private _stateAfterDoctypeSystemIdentifier;
+    private _stateBogusDoctype;
+    private _stateCdataSection;
+    private _stateCdataSectionBracket;
+    private _stateCdataSectionEnd;
+    private _stateCharacterReference;
+    private _stateNamedCharacterReference;
+    private _stateAmbiguousAmpersand;
+    private _stateNumericCharacterReference;
+    private _stateHexademicalCharacterReferenceStart;
+    private _stateHexademicalCharacterReference;
+    private _stateDecimalCharacterReference;
+    private _stateNumericCharacterReferenceEnd;
+}
+export {};
+//# sourceMappingURL=index.d.ts.map
\ No newline at end of file
diff --git a/includes/external/addressbook/node_modules/parse5/dist/tokenizer/index.js b/includes/external/addressbook/node_modules/parse5/dist/tokenizer/index.js
new file mode 100644
index 0000000..217b7bc
--- /dev/null
+++ b/includes/external/addressbook/node_modules/parse5/dist/tokenizer/index.js
@@ -0,0 +1,2904 @@
+import { Preprocessor } from './preprocessor.js';
+import { CODE_POINTS as $, SEQUENCES as $$, REPLACEMENT_CHARACTER, isSurrogate, isUndefinedCodePoint, isControlCodePoint, } from '../common/unicode.js';
+import { TokenType, getTokenAttr, } from '../common/token.js';
+import { htmlDecodeTree, BinTrieFlags, determineBranch } from 'entities/lib/decode.js';
+import { ERR } from '../common/error-codes.js';
+import { TAG_ID, getTagID } from '../common/html.js';
+//C1 Unicode control character reference replacements
+const C1_CONTROLS_REFERENCE_REPLACEMENTS = new Map([
+    [0x80, 8364],
+    [0x82, 8218],
+    [0x83, 402],
+    [0x84, 8222],
+    [0x85, 8230],
+    [0x86, 8224],
+    [0x87, 8225],
+    [0x88, 710],
+    [0x89, 8240],
+    [0x8a, 352],
+    [0x8b, 8249],
+    [0x8c, 338],
+    [0x8e, 381],
+    [0x91, 8216],
+    [0x92, 8217],
+    [0x93, 8220],
+    [0x94, 8221],
+    [0x95, 8226],
+    [0x96, 8211],
+    [0x97, 8212],
+    [0x98, 732],
+    [0x99, 8482],
+    [0x9a, 353],
+    [0x9b, 8250],
+    [0x9c, 339],
+    [0x9e, 382],
+    [0x9f, 376],
+]);
+//States
+var State;
+(function (State) {
+    State[State["DATA"] = 0] = "DATA";
+    State[State["RCDATA"] = 1] = "RCDATA";
+    State[State["RAWTEXT"] = 2] = "RAWTEXT";
+    State[State["SCRIPT_DATA"] = 3] = "SCRIPT_DATA";
+    State[State["PLAINTEXT"] = 4] = "PLAINTEXT";
+    State[State["TAG_OPEN"] = 5] = "TAG_OPEN";
+    State[State["END_TAG_OPEN"] = 6] = "END_TAG_OPEN";
+    State[State["TAG_NAME"] = 7] = "TAG_NAME";
+    State[State["RCDATA_LESS_THAN_SIGN"] = 8] = "RCDATA_LESS_THAN_SIGN";
+    State[State["RCDATA_END_TAG_OPEN"] = 9] = "RCDATA_END_TAG_OPEN";
+    State[State["RCDATA_END_TAG_NAME"] = 10] = "RCDATA_END_TAG_NAME";
+    State[State["RAWTEXT_LESS_THAN_SIGN"] = 11] = "RAWTEXT_LESS_THAN_SIGN";
+    State[State["RAWTEXT_END_TAG_OPEN"] = 12] = "RAWTEXT_END_TAG_OPEN";
+    State[State["RAWTEXT_END_TAG_NAME"] = 13] = "RAWTEXT_END_TAG_NAME";
+    State[State["SCRIPT_DATA_LESS_THAN_SIGN"] = 14] = "SCRIPT_DATA_LESS_THAN_SIGN";
+    State[State["SCRIPT_DATA_END_TAG_OPEN"] = 15] = "SCRIPT_DATA_END_TAG_OPEN";
+    State[State["SCRIPT_DATA_END_TAG_NAME"] = 16] = "SCRIPT_DATA_END_TAG_NAME";
+    State[State["SCRIPT_DATA_ESCAPE_START"] = 17] = "SCRIPT_DATA_ESCAPE_START";
+    State[State["SCRIPT_DATA_ESCAPE_START_DASH"] = 18] = "SCRIPT_DATA_ESCAPE_START_DASH";
+    State[State["SCRIPT_DATA_ESCAPED"] = 19] = "SCRIPT_DATA_ESCAPED";
+    State[State["SCRIPT_DATA_ESCAPED_DASH"] = 20] = "SCRIPT_DATA_ESCAPED_DASH";
+    State[State["SCRIPT_DATA_ESCAPED_DASH_DASH"] = 21] = "SCRIPT_DATA_ESCAPED_DASH_DASH";
+    State[State["SCRIPT_DATA_ESCAPED_LESS_THAN_SIGN"] = 22] = "SCRIPT_DATA_ESCAPED_LESS_THAN_SIGN";
+    State[State["SCRIPT_DATA_ESCAPED_END_TAG_OPEN"] = 23] = "SCRIPT_DATA_ESCAPED_END_TAG_OPEN";
+    State[State["SCRIPT_DATA_ESCAPED_END_TAG_NAME"] = 24] = "SCRIPT_DATA_ESCAPED_END_TAG_NAME";
+    State[State["SCRIPT_DATA_DOUBLE_ESCAPE_START"] = 25] = "SCRIPT_DATA_DOUBLE_ESCAPE_START";
+    State[State["SCRIPT_DATA_DOUBLE_ESCAPED"] = 26] = "SCRIPT_DATA_DOUBLE_ESCAPED";
+    State[State["SCRIPT_DATA_DOUBLE_ESCAPED_DASH"] = 27] = "SCRIPT_DATA_DOUBLE_ESCAPED_DASH";
+    State[State["SCRIPT_DATA_DOUBLE_ESCAPED_DASH_DASH"] = 28] = "SCRIPT_DATA_DOUBLE_ESCAPED_DASH_DASH";
+    State[State["SCRIPT_DATA_DOUBLE_ESCAPED_LESS_THAN_SIGN"] = 29] = "SCRIPT_DATA_DOUBLE_ESCAPED_LESS_THAN_SIGN";
+    State[State["SCRIPT_DATA_DOUBLE_ESCAPE_END"] = 30] = "SCRIPT_DATA_DOUBLE_ESCAPE_END";
+    State[State["BEFORE_ATTRIBUTE_NAME"] = 31] = "BEFORE_ATTRIBUTE_NAME";
+    State[State["ATTRIBUTE_NAME"] = 32] = "ATTRIBUTE_NAME";
+    State[State["AFTER_ATTRIBUTE_NAME"] = 33] = "AFTER_ATTRIBUTE_NAME";
+    State[State["BEFORE_ATTRIBUTE_VALUE"] = 34] = "BEFORE_ATTRIBUTE_VALUE";
+    State[State["ATTRIBUTE_VALUE_DOUBLE_QUOTED"] = 35] = "ATTRIBUTE_VALUE_DOUBLE_QUOTED";
+    State[State["ATTRIBUTE_VALUE_SINGLE_QUOTED"] = 36] = "ATTRIBUTE_VALUE_SINGLE_QUOTED";
+    State[State["ATTRIBUTE_VALUE_UNQUOTED"] = 37] = "ATTRIBUTE_VALUE_UNQUOTED";
+    State[State["AFTER_ATTRIBUTE_VALUE_QUOTED"] = 38] = "AFTER_ATTRIBUTE_VALUE_QUOTED";
+    State[State["SELF_CLOSING_START_TAG"] = 39] = "SELF_CLOSING_START_TAG";
+    State[State["BOGUS_COMMENT"] = 40] = "BOGUS_COMMENT";
+    State[State["MARKUP_DECLARATION_OPEN"] = 41] = "MARKUP_DECLARATION_OPEN";
+    State[State["COMMENT_START"] = 42] = "COMMENT_START";
+    State[State["COMMENT_START_DASH"] = 43] = "COMMENT_START_DASH";
+    State[State["COMMENT"] = 44] = "COMMENT";
+    State[State["COMMENT_LESS_THAN_SIGN"] = 45] = "COMMENT_LESS_THAN_SIGN";
+    State[State["COMMENT_LESS_THAN_SIGN_BANG"] = 46] = "COMMENT_LESS_THAN_SIGN_BANG";
+    State[State["COMMENT_LESS_THAN_SIGN_BANG_DASH"] = 47] = "COMMENT_LESS_THAN_SIGN_BANG_DASH";
+    State[State["COMMENT_LESS_THAN_SIGN_BANG_DASH_DASH"] = 48] = "COMMENT_LESS_THAN_SIGN_BANG_DASH_DASH";
+    State[State["COMMENT_END_DASH"] = 49] = "COMMENT_END_DASH";
+    State[State["COMMENT_END"] = 50] = "COMMENT_END";
+    State[State["COMMENT_END_BANG"] = 51] = "COMMENT_END_BANG";
+    State[State["DOCTYPE"] = 52] = "DOCTYPE";
+    State[State["BEFORE_DOCTYPE_NAME"] = 53] = "BEFORE_DOCTYPE_NAME";
+    State[State["DOCTYPE_NAME"] = 54] = "DOCTYPE_NAME";
+    State[State["AFTER_DOCTYPE_NAME"] = 55] = "AFTER_DOCTYPE_NAME";
+    State[State["AFTER_DOCTYPE_PUBLIC_KEYWORD"] = 56] = "AFTER_DOCTYPE_PUBLIC_KEYWORD";
+    State[State["BEFORE_DOCTYPE_PUBLIC_IDENTIFIER"] = 57] = "BEFORE_DOCTYPE_PUBLIC_IDENTIFIER";
+    State[State["DOCTYPE_PUBLIC_IDENTIFIER_DOUBLE_QUOTED"] = 58] = "DOCTYPE_PUBLIC_IDENTIFIER_DOUBLE_QUOTED";
+    State[State["DOCTYPE_PUBLIC_IDENTIFIER_SINGLE_QUOTED"] = 59] = "DOCTYPE_PUBLIC_IDENTIFIER_SINGLE_QUOTED";
+    State[State["AFTER_DOCTYPE_PUBLIC_IDENTIFIER"] = 60] = "AFTER_DOCTYPE_PUBLIC_IDENTIFIER";
+    State[State["BETWEEN_DOCTYPE_PUBLIC_AND_SYSTEM_IDENTIFIERS"] = 61] = "BETWEEN_DOCTYPE_PUBLIC_AND_SYSTEM_IDENTIFIERS";
+    State[State["AFTER_DOCTYPE_SYSTEM_KEYWORD"] = 62] = "AFTER_DOCTYPE_SYSTEM_KEYWORD";
+    State[State["BEFORE_DOCTYPE_SYSTEM_IDENTIFIER"] = 63] = "BEFORE_DOCTYPE_SYSTEM_IDENTIFIER";
+    State[State["DOCTYPE_SYSTEM_IDENTIFIER_DOUBLE_QUOTED"] = 64] = "DOCTYPE_SYSTEM_IDENTIFIER_DOUBLE_QUOTED";
+    State[State["DOCTYPE_SYSTEM_IDENTIFIER_SINGLE_QUOTED"] = 65] = "DOCTYPE_SYSTEM_IDENTIFIER_SINGLE_QUOTED";
+    State[State["AFTER_DOCTYPE_SYSTEM_IDENTIFIER"] = 66] = "AFTER_DOCTYPE_SYSTEM_IDENTIFIER";
+    State[State["BOGUS_DOCTYPE"] = 67] = "BOGUS_DOCTYPE";
+    State[State["CDATA_SECTION"] = 68] = "CDATA_SECTION";
+    State[State["CDATA_SECTION_BRACKET"] = 69] = "CDATA_SECTION_BRACKET";
+    State[State["CDATA_SECTION_END"] = 70] = "CDATA_SECTION_END";
+    State[State["CHARACTER_REFERENCE"] = 71] = "CHARACTER_REFERENCE";
+    State[State["NAMED_CHARACTER_REFERENCE"] = 72] = "NAMED_CHARACTER_REFERENCE";
+    State[State["AMBIGUOUS_AMPERSAND"] = 73] = "AMBIGUOUS_AMPERSAND";
+    State[State["NUMERIC_CHARACTER_REFERENCE"] = 74] = "NUMERIC_CHARACTER_REFERENCE";
+    State[State["HEXADEMICAL_CHARACTER_REFERENCE_START"] = 75] = "HEXADEMICAL_CHARACTER_REFERENCE_START";
+    State[State["HEXADEMICAL_CHARACTER_REFERENCE"] = 76] = "HEXADEMICAL_CHARACTER_REFERENCE";
+    State[State["DECIMAL_CHARACTER_REFERENCE"] = 77] = "DECIMAL_CHARACTER_REFERENCE";
+    State[State["NUMERIC_CHARACTER_REFERENCE_END"] = 78] = "NUMERIC_CHARACTER_REFERENCE_END";
+})(State || (State = {}));
+//Tokenizer initial states for different modes
+export const TokenizerMode = {
+    DATA: State.DATA,
+    RCDATA: State.RCDATA,
+    RAWTEXT: State.RAWTEXT,
+    SCRIPT_DATA: State.SCRIPT_DATA,
+    PLAINTEXT: State.PLAINTEXT,
+    CDATA_SECTION: State.CDATA_SECTION,
+};
+//Utils
+//OPTIMIZATION: these utility functions should not be moved out of this module. V8 Crankshaft will not inline
+//this functions if they will be situated in another module due to context switch.
+//Always perform inlining check before modifying this functions ('node --trace-inlining').
+function isAsciiDigit(cp) {
+    return cp >= $.DIGIT_0 && cp <= $.DIGIT_9;
+}
+function isAsciiUpper(cp) {
+    return cp >= $.LATIN_CAPITAL_A && cp <= $.LATIN_CAPITAL_Z;
+}
+function isAsciiLower(cp) {
+    return cp >= $.LATIN_SMALL_A && cp <= $.LATIN_SMALL_Z;
+}
+function isAsciiLetter(cp) {
+    return isAsciiLower(cp) || isAsciiUpper(cp);
+}
+function isAsciiAlphaNumeric(cp) {
+    return isAsciiLetter(cp) || isAsciiDigit(cp);
+}
+function isAsciiUpperHexDigit(cp) {
+    return cp >= $.LATIN_CAPITAL_A && cp <= $.LATIN_CAPITAL_F;
+}
+function isAsciiLowerHexDigit(cp) {
+    return cp >= $.LATIN_SMALL_A && cp <= $.LATIN_SMALL_F;
+}
+function isAsciiHexDigit(cp) {
+    return isAsciiDigit(cp) || isAsciiUpperHexDigit(cp) || isAsciiLowerHexDigit(cp);
+}
+function toAsciiLower(cp) {
+    return cp + 32;
+}
+function isWhitespace(cp) {
+    return cp === $.SPACE || cp === $.LINE_FEED || cp === $.TABULATION || cp === $.FORM_FEED;
+}
+function isEntityInAttributeInvalidEnd(nextCp) {
+    return nextCp === $.EQUALS_SIGN || isAsciiAlphaNumeric(nextCp);
+}
+function isScriptDataDoubleEscapeSequenceEnd(cp) {
+    return isWhitespace(cp) || cp === $.SOLIDUS || cp === $.GREATER_THAN_SIGN;
+}
+//Tokenizer
+export class Tokenizer {
+    constructor(options, handler) {
+        this.options = options;
+        this.handler = handler;
+        this.paused = false;
+        /** Ensures that the parsing loop isn't run multiple times at once. */
+        this.inLoop = false;
+        /**
+         * Indicates that the current adjusted node exists, is not an element in the HTML namespace,
+         * and that it is not an integration point for either MathML or HTML.
+         *
+         * @see {@link https://html.spec.whatwg.org/multipage/parsing.html#tree-construction}
+         */
+        this.inForeignNode = false;
+        this.lastStartTagName = '';
+        this.active = false;
+        this.state = State.DATA;
+        this.returnState = State.DATA;
+        this.charRefCode = -1;
+        this.consumedAfterSnapshot = -1;
+        this.currentCharacterToken = null;
+        this.currentToken = null;
+        this.currentAttr = { name: '', value: '' };
+        this.preprocessor = new Preprocessor(handler);
+        this.currentLocation = this.getCurrentLocation(-1);
+    }
+    //Errors
+    _err(code) {
+        var _a, _b;
+        (_b = (_a = this.handler).onParseError) === null || _b === void 0 ? void 0 : _b.call(_a, this.preprocessor.getError(code));
+    }
+    // NOTE: `offset` may never run across line boundaries.
+    getCurrentLocation(offset) {
+        if (!this.options.sourceCodeLocationInfo) {
+            return null;
+        }
+        return {
+            startLine: this.preprocessor.line,
+            startCol: this.preprocessor.col - offset,
+            startOffset: this.preprocessor.offset - offset,
+            endLine: -1,
+            endCol: -1,
+            endOffset: -1,
+        };
+    }
+    _runParsingLoop() {
+        if (this.inLoop)
+            return;
+        this.inLoop = true;
+        while (this.active && !this.paused) {
+            this.consumedAfterSnapshot = 0;
+            const cp = this._consume();
+            if (!this._ensureHibernation()) {
+                this._callState(cp);
+            }
+        }
+        this.inLoop = false;
+    }
+    //API
+    pause() {
+        this.paused = true;
+    }
+    resume(writeCallback) {
+        if (!this.paused) {
+            throw new Error('Parser was already resumed');
+        }
+        this.paused = false;
+        // Necessary for synchronous resume.
+        if (this.inLoop)
+            return;
+        this._runParsingLoop();
+        if (!this.paused) {
+            writeCallback === null || writeCallback === void 0 ? void 0 : writeCallback();
+        }
+    }
+    write(chunk, isLastChunk, writeCallback) {
+        this.active = true;
+        this.preprocessor.write(chunk, isLastChunk);
+        this._runParsingLoop();
+        if (!this.paused) {
+            writeCallback === null || writeCallback === void 0 ? void 0 : writeCallback();
+        }
+    }
+    insertHtmlAtCurrentPos(chunk) {
+        this.active = true;
+        this.preprocessor.insertHtmlAtCurrentPos(chunk);
+        this._runParsingLoop();
+    }
+    //Hibernation
+    _ensureHibernation() {
+        if (this.preprocessor.endOfChunkHit) {
+            this._unconsume(this.consumedAfterSnapshot);
+            this.active = false;
+            return true;
+        }
+        return false;
+    }
+    //Consumption
+    _consume() {
+        this.consumedAfterSnapshot++;
+        return this.preprocessor.advance();
+    }
+    _unconsume(count) {
+        this.consumedAfterSnapshot -= count;
+        this.preprocessor.retreat(count);
+    }
+    _reconsumeInState(state, cp) {
+        this.state = state;
+        this._callState(cp);
+    }
+    _advanceBy(count) {
+        this.consumedAfterSnapshot += count;
+        for (let i = 0; i < count; i++) {
+            this.preprocessor.advance();
+        }
+    }
+    _consumeSequenceIfMatch(pattern, caseSensitive) {
+        if (this.preprocessor.startsWith(pattern, caseSensitive)) {
+            // We will already have consumed one character before calling this method.
+            this._advanceBy(pattern.length - 1);
+            return true;
+        }
+        return false;
+    }
+    //Token creation
+    _createStartTagToken() {
+        this.currentToken = {
+            type: TokenType.START_TAG,
+            tagName: '',
+            tagID: TAG_ID.UNKNOWN,
+            selfClosing: false,
+            ackSelfClosing: false,
+            attrs: [],
+            location: this.getCurrentLocation(1),
+        };
+    }
+    _createEndTagToken() {
+        this.currentToken = {
+            type: TokenType.END_TAG,
+            tagName: '',
+            tagID: TAG_ID.UNKNOWN,
+            selfClosing: false,
+            ackSelfClosing: false,
+            attrs: [],
+            location: this.getCurrentLocation(2),
+        };
+    }
+    _createCommentToken(offset) {
+        this.currentToken = {
+            type: TokenType.COMMENT,
+            data: '',
+            location: this.getCurrentLocation(offset),
+        };
+    }
+    _createDoctypeToken(initialName) {
+        this.currentToken = {
+            type: TokenType.DOCTYPE,
+            name: initialName,
+            forceQuirks: false,
+            publicId: null,
+            systemId: null,
+            location: this.currentLocation,
+        };
+    }
+    _createCharacterToken(type, chars) {
+        this.currentCharacterToken = {
+            type,
+            chars,
+            location: this.currentLocation,
+        };
+    }
+    //Tag attributes
+    _createAttr(attrNameFirstCh) {
+        this.currentAttr = {
+            name: attrNameFirstCh,
+            value: '',
+        };
+        this.currentLocation = this.getCurrentLocation(0);
+    }
+    _leaveAttrName() {
+        var _a;
+        var _b;
+        const token = this.currentToken;
+        if (getTokenAttr(token, this.currentAttr.name) === null) {
+            token.attrs.push(this.currentAttr);
+            if (token.location && this.currentLocation) {
+                const attrLocations = ((_a = (_b = token.location).attrs) !== null && _a !== void 0 ? _a : (_b.attrs = Object.create(null)));
+                attrLocations[this.currentAttr.name] = this.currentLocation;
+                // Set end location
+                this._leaveAttrValue();
+            }
+        }
+        else {
+            this._err(ERR.duplicateAttribute);
+        }
+    }
+    _leaveAttrValue() {
+        if (this.currentLocation) {
+            this.currentLocation.endLine = this.preprocessor.line;
+            this.currentLocation.endCol = this.preprocessor.col;
+            this.currentLocation.endOffset = this.preprocessor.offset;
+        }
+    }
+    //Token emission
+    prepareToken(ct) {
+        this._emitCurrentCharacterToken(ct.location);
+        this.currentToken = null;
+        if (ct.location) {
+            ct.location.endLine = this.preprocessor.line;
+            ct.location.endCol = this.preprocessor.col + 1;
+            ct.location.endOffset = this.preprocessor.offset + 1;
+        }
+        this.currentLocation = this.getCurrentLocation(-1);
+    }
+    emitCurrentTagToken() {
+        const ct = this.currentToken;
+        this.prepareToken(ct);
+        ct.tagID = getTagID(ct.tagName);
+        if (ct.type === TokenType.START_TAG) {
+            this.lastStartTagName = ct.tagName;
+            this.handler.onStartTag(ct);
+        }
+        else {
+            if (ct.attrs.length > 0) {
+                this._err(ERR.endTagWithAttributes);
+            }
+            if (ct.selfClosing) {
+                this._err(ERR.endTagWithTrailingSolidus);
+            }
+            this.handler.onEndTag(ct);
+        }
+        this.preprocessor.dropParsedChunk();
+    }
+    emitCurrentComment(ct) {
+        this.prepareToken(ct);
+        this.handler.onComment(ct);
+        this.preprocessor.dropParsedChunk();
+    }
+    emitCurrentDoctype(ct) {
+        this.prepareToken(ct);
+        this.handler.onDoctype(ct);
+        this.preprocessor.dropParsedChunk();
+    }
+    _emitCurrentCharacterToken(nextLocation) {
+        if (this.currentCharacterToken) {
+            //NOTE: if we have a pending character token, make it's end location equal to the
+            //current token's start location.
+            if (nextLocation && this.currentCharacterToken.location) {
+                this.currentCharacterToken.location.endLine = nextLocation.startLine;
+                this.currentCharacterToken.location.endCol = nextLocation.startCol;
+                this.currentCharacterToken.location.endOffset = nextLocation.startOffset;
+            }
+            switch (this.currentCharacterToken.type) {
+                case TokenType.CHARACTER: {
+                    this.handler.onCharacter(this.currentCharacterToken);
+                    break;
+                }
+                case TokenType.NULL_CHARACTER: {
+                    this.handler.onNullCharacter(this.currentCharacterToken);
+                    break;
+                }
+                case TokenType.WHITESPACE_CHARACTER: {
+                    this.handler.onWhitespaceCharacter(this.currentCharacterToken);
+                    break;
+                }
+            }
+            this.currentCharacterToken = null;
+        }
+    }
+    _emitEOFToken() {
+        const location = this.getCurrentLocation(0);
+        if (location) {
+            location.endLine = location.startLine;
+            location.endCol = location.startCol;
+            location.endOffset = location.startOffset;
+        }
+        this._emitCurrentCharacterToken(location);
+        this.handler.onEof({ type: TokenType.EOF, location });
+        this.active = false;
+    }
+    //Characters emission
+    //OPTIMIZATION: specification uses only one type of character tokens (one token per character).
+    //This causes a huge memory overhead and a lot of unnecessary parser loops. parse5 uses 3 groups of characters.
+    //If we have a sequence of characters that belong to the same group, the parser can process it
+    //as a single solid character token.
+    //So, there are 3 types of character tokens in parse5:
+    //1)TokenType.NULL_CHARACTER - \u0000-character sequences (e.g. '\u0000\u0000\u0000')
+    //2)TokenType.WHITESPACE_CHARACTER - any whitespace/new-line character sequences (e.g. '\n  \r\t   \f')
+    //3)TokenType.CHARACTER - any character sequence which don't belong to groups 1 and 2 (e.g. 'abcdef1234@@#$%^')
+    _appendCharToCurrentCharacterToken(type, ch) {
+        if (this.currentCharacterToken) {
+            if (this.currentCharacterToken.type !== type) {
+                this.currentLocation = this.getCurrentLocation(0);
+                this._emitCurrentCharacterToken(this.currentLocation);
+                this.preprocessor.dropParsedChunk();
+            }
+            else {
+                this.currentCharacterToken.chars += ch;
+                return;
+            }
+        }
+        this._createCharacterToken(type, ch);
+    }
+    _emitCodePoint(cp) {
+        const type = isWhitespace(cp)
+            ? TokenType.WHITESPACE_CHARACTER
+            : cp === $.NULL
+                ? TokenType.NULL_CHARACTER
+                : TokenType.CHARACTER;
+        this._appendCharToCurrentCharacterToken(type, String.fromCodePoint(cp));
+    }
+    //NOTE: used when we emit characters explicitly.
+    //This is always for non-whitespace and non-null characters, which allows us to avoid additional checks.
+    _emitChars(ch) {
+        this._appendCharToCurrentCharacterToken(TokenType.CHARACTER, ch);
+    }
+    // Character reference helpers
+    _matchNamedCharacterReference(cp) {
+        let result = null;
+        let excess = 0;
+        let withoutSemicolon = false;
+        for (let i = 0, current = htmlDecodeTree[0]; i >= 0; cp = this._consume()) {
+            i = determineBranch(htmlDecodeTree, current, i + 1, cp);
+            if (i < 0)
+                break;
+            excess += 1;
+            current = htmlDecodeTree[i];
+            const masked = current & BinTrieFlags.VALUE_LENGTH;
+            // If the branch is a value, store it and continue
+            if (masked) {
+                // The mask is the number of bytes of the value, including the current byte.
+                const valueLength = (masked >> 14) - 1;
+                // Attribute values that aren't terminated properly aren't parsed, and shouldn't lead to a parser error.
+                // See the example in https://html.spec.whatwg.org/multipage/parsing.html#named-character-reference-state
+                if (cp !== $.SEMICOLON &&
+                    this._isCharacterReferenceInAttribute() &&
+                    isEntityInAttributeInvalidEnd(this.preprocessor.peek(1))) {
+                    //NOTE: we don't flush all consumed code points here, and instead switch back to the original state after
+                    //emitting an ampersand. This is fine, as alphanumeric characters won't be parsed differently in attributes.
+                    result = [$.AMPERSAND];
+                    // Skip over the value.
+                    i += valueLength;
+                }
+                else {
+                    // If this is a surrogate pair, consume the next two bytes.
+                    result =
+                        valueLength === 0
+                            ? [htmlDecodeTree[i] & ~BinTrieFlags.VALUE_LENGTH]
+                            : valueLength === 1
+                                ? [htmlDecodeTree[++i]]
+                                : [htmlDecodeTree[++i], htmlDecodeTree[++i]];
+                    excess = 0;
+                    withoutSemicolon = cp !== $.SEMICOLON;
+                }
+                if (valueLength === 0) {
+                    // If the value is zero-length, we're done.
+                    this._consume();
+                    break;
+                }
+            }
+        }
+        this._unconsume(excess);
+        if (withoutSemicolon && !this.preprocessor.endOfChunkHit) {
+            this._err(ERR.missingSemicolonAfterCharacterReference);
+        }
+        // We want to emit the error above on the code point after the entity.
+        // We always consume one code point too many in the loop, and we wait to
+        // unconsume it until after the error is emitted.
+        this._unconsume(1);
+        return result;
+    }
+    _isCharacterReferenceInAttribute() {
+        return (this.returnState === State.ATTRIBUTE_VALUE_DOUBLE_QUOTED ||
+            this.returnState === State.ATTRIBUTE_VALUE_SINGLE_QUOTED ||
+            this.returnState === State.ATTRIBUTE_VALUE_UNQUOTED);
+    }
+    _flushCodePointConsumedAsCharacterReference(cp) {
+        if (this._isCharacterReferenceInAttribute()) {
+            this.currentAttr.value += String.fromCodePoint(cp);
+        }
+        else {
+            this._emitCodePoint(cp);
+        }
+    }
+    // Calling states this way turns out to be much faster than any other approach.
+    _callState(cp) {
+        switch (this.state) {
+            case State.DATA: {
+                this._stateData(cp);
+                break;
+            }
+            case State.RCDATA: {
+                this._stateRcdata(cp);
+                break;
+            }
+            case State.RAWTEXT: {
+                this._stateRawtext(cp);
+                break;
+            }
+            case State.SCRIPT_DATA: {
+                this._stateScriptData(cp);
+                break;
+            }
+            case State.PLAINTEXT: {
+                this._statePlaintext(cp);
+                break;
+            }
+            case State.TAG_OPEN: {
+                this._stateTagOpen(cp);
+                break;
+            }
+            case State.END_TAG_OPEN: {
+                this._stateEndTagOpen(cp);
+                break;
+            }
+            case State.TAG_NAME: {
+                this._stateTagName(cp);
+                break;
+            }
+            case State.RCDATA_LESS_THAN_SIGN: {
+                this._stateRcdataLessThanSign(cp);
+                break;
+            }
+            case State.RCDATA_END_TAG_OPEN: {
+                this._stateRcdataEndTagOpen(cp);
+                break;
+            }
+            case State.RCDATA_END_TAG_NAME: {
+                this._stateRcdataEndTagName(cp);
+                break;
+            }
+            case State.RAWTEXT_LESS_THAN_SIGN: {
+                this._stateRawtextLessThanSign(cp);
+                break;
+            }
+            case State.RAWTEXT_END_TAG_OPEN: {
+                this._stateRawtextEndTagOpen(cp);
+                break;
+            }
+            case State.RAWTEXT_END_TAG_NAME: {
+                this._stateRawtextEndTagName(cp);
+                break;
+            }
+            case State.SCRIPT_DATA_LESS_THAN_SIGN: {
+                this._stateScriptDataLessThanSign(cp);
+                break;
+            }
+            case State.SCRIPT_DATA_END_TAG_OPEN: {
+                this._stateScriptDataEndTagOpen(cp);
+                break;
+            }
+            case State.SCRIPT_DATA_END_TAG_NAME: {
+                this._stateScriptDataEndTagName(cp);
+                break;
+            }
+            case State.SCRIPT_DATA_ESCAPE_START: {
+                this._stateScriptDataEscapeStart(cp);
+                break;
+            }
+            case State.SCRIPT_DATA_ESCAPE_START_DASH: {
+                this._stateScriptDataEscapeStartDash(cp);
+                break;
+            }
+            case State.SCRIPT_DATA_ESCAPED: {
+                this._stateScriptDataEscaped(cp);
+                break;
+            }
+            case State.SCRIPT_DATA_ESCAPED_DASH: {
+                this._stateScriptDataEscapedDash(cp);
+                break;
+            }
+            case State.SCRIPT_DATA_ESCAPED_DASH_DASH: {
+                this._stateScriptDataEscapedDashDash(cp);
+                break;
+            }
+            case State.SCRIPT_DATA_ESCAPED_LESS_THAN_SIGN: {
+                this._stateScriptDataEscapedLessThanSign(cp);
+                break;
+            }
+            case State.SCRIPT_DATA_ESCAPED_END_TAG_OPEN: {
+                this._stateScriptDataEscapedEndTagOpen(cp);
+                break;
+            }
+            case State.SCRIPT_DATA_ESCAPED_END_TAG_NAME: {
+                this._stateScriptDataEscapedEndTagName(cp);
+                break;
+            }
+            case State.SCRIPT_DATA_DOUBLE_ESCAPE_START: {
+                this._stateScriptDataDoubleEscapeStart(cp);
+                break;
+            }
+            case State.SCRIPT_DATA_DOUBLE_ESCAPED: {
+                this._stateScriptDataDoubleEscaped(cp);
+                break;
+            }
+            case State.SCRIPT_DATA_DOUBLE_ESCAPED_DASH: {
+                this._stateScriptDataDoubleEscapedDash(cp);
+                break;
+            }
+            case State.SCRIPT_DATA_DOUBLE_ESCAPED_DASH_DASH: {
+                this._stateScriptDataDoubleEscapedDashDash(cp);
+                break;
+            }
+            case State.SCRIPT_DATA_DOUBLE_ESCAPED_LESS_THAN_SIGN: {
+                this._stateScriptDataDoubleEscapedLessThanSign(cp);
+                break;
+            }
+            case State.SCRIPT_DATA_DOUBLE_ESCAPE_END: {
+                this._stateScriptDataDoubleEscapeEnd(cp);
+                break;
+            }
+            case State.BEFORE_ATTRIBUTE_NAME: {
+                this._stateBeforeAttributeName(cp);
+                break;
+            }
+            case State.ATTRIBUTE_NAME: {
+                this._stateAttributeName(cp);
+                break;
+            }
+            case State.AFTER_ATTRIBUTE_NAME: {
+                this._stateAfterAttributeName(cp);
+                break;
+            }
+            case State.BEFORE_ATTRIBUTE_VALUE: {
+                this._stateBeforeAttributeValue(cp);
+                break;
+            }
+            case State.ATTRIBUTE_VALUE_DOUBLE_QUOTED: {
+                this._stateAttributeValueDoubleQuoted(cp);
+                break;
+            }
+            case State.ATTRIBUTE_VALUE_SINGLE_QUOTED: {
+                this._stateAttributeValueSingleQuoted(cp);
+                break;
+            }
+            case State.ATTRIBUTE_VALUE_UNQUOTED: {
+                this._stateAttributeValueUnquoted(cp);
+                break;
+            }
+            case State.AFTER_ATTRIBUTE_VALUE_QUOTED: {
+                this._stateAfterAttributeValueQuoted(cp);
+                break;
+            }
+            case State.SELF_CLOSING_START_TAG: {
+                this._stateSelfClosingStartTag(cp);
+                break;
+            }
+            case State.BOGUS_COMMENT: {
+                this._stateBogusComment(cp);
+                break;
+            }
+            case State.MARKUP_DECLARATION_OPEN: {
+                this._stateMarkupDeclarationOpen(cp);
+                break;
+            }
+            case State.COMMENT_START: {
+                this._stateCommentStart(cp);
+                break;
+            }
+            case State.COMMENT_START_DASH: {
+                this._stateCommentStartDash(cp);
+                break;
+            }
+            case State.COMMENT: {
+                this._stateComment(cp);
+                break;
+            }
+            case State.COMMENT_LESS_THAN_SIGN: {
+                this._stateCommentLessThanSign(cp);
+                break;
+            }
+            case State.COMMENT_LESS_THAN_SIGN_BANG: {
+                this._stateCommentLessThanSignBang(cp);
+                break;
+            }
+            case State.COMMENT_LESS_THAN_SIGN_BANG_DASH: {
+                this._stateCommentLessThanSignBangDash(cp);
+                break;
+            }
+            case State.COMMENT_LESS_THAN_SIGN_BANG_DASH_DASH: {
+                this._stateCommentLessThanSignBangDashDash(cp);
+                break;
+            }
+            case State.COMMENT_END_DASH: {
+                this._stateCommentEndDash(cp);
+                break;
+            }
+            case State.COMMENT_END: {
+                this._stateCommentEnd(cp);
+                break;
+            }
+            case State.COMMENT_END_BANG: {
+                this._stateCommentEndBang(cp);
+                break;
+            }
+            case State.DOCTYPE: {
+                this._stateDoctype(cp);
+                break;
+            }
+            case State.BEFORE_DOCTYPE_NAME: {
+                this._stateBeforeDoctypeName(cp);
+                break;
+            }
+            case State.DOCTYPE_NAME: {
+                this._stateDoctypeName(cp);
+                break;
+            }
+            case State.AFTER_DOCTYPE_NAME: {
+                this._stateAfterDoctypeName(cp);
+                break;
+            }
+            case State.AFTER_DOCTYPE_PUBLIC_KEYWORD: {
+                this._stateAfterDoctypePublicKeyword(cp);
+                break;
+            }
+            case State.BEFORE_DOCTYPE_PUBLIC_IDENTIFIER: {
+                this._stateBeforeDoctypePublicIdentifier(cp);
+                break;
+            }
+            case State.DOCTYPE_PUBLIC_IDENTIFIER_DOUBLE_QUOTED: {
+                this._stateDoctypePublicIdentifierDoubleQuoted(cp);
+                break;
+            }
+            case State.DOCTYPE_PUBLIC_IDENTIFIER_SINGLE_QUOTED: {
+                this._stateDoctypePublicIdentifierSingleQuoted(cp);
+                break;
+            }
+            case State.AFTER_DOCTYPE_PUBLIC_IDENTIFIER: {
+                this._stateAfterDoctypePublicIdentifier(cp);
+                break;
+            }
+            case State.BETWEEN_DOCTYPE_PUBLIC_AND_SYSTEM_IDENTIFIERS: {
+                this._stateBetweenDoctypePublicAndSystemIdentifiers(cp);
+                break;
+            }
+            case State.AFTER_DOCTYPE_SYSTEM_KEYWORD: {
+                this._stateAfterDoctypeSystemKeyword(cp);
+                break;
+            }
+            case State.BEFORE_DOCTYPE_SYSTEM_IDENTIFIER: {
+                this._stateBeforeDoctypeSystemIdentifier(cp);
+                break;
+            }
+            case State.DOCTYPE_SYSTEM_IDENTIFIER_DOUBLE_QUOTED: {
+                this._stateDoctypeSystemIdentifierDoubleQuoted(cp);
+                break;
+            }
+            case State.DOCTYPE_SYSTEM_IDENTIFIER_SINGLE_QUOTED: {
+                this._stateDoctypeSystemIdentifierSingleQuoted(cp);
+                break;
+            }
+            case State.AFTER_DOCTYPE_SYSTEM_IDENTIFIER: {
+                this._stateAfterDoctypeSystemIdentifier(cp);
+                break;
+            }
+            case State.BOGUS_DOCTYPE: {
+                this._stateBogusDoctype(cp);
+                break;
+            }
+            case State.CDATA_SECTION: {
+                this._stateCdataSection(cp);
+                break;
+            }
+            case State.CDATA_SECTION_BRACKET: {
+                this._stateCdataSectionBracket(cp);
+                break;
+            }
+            case State.CDATA_SECTION_END: {
+                this._stateCdataSectionEnd(cp);
+                break;
+            }
+            case State.CHARACTER_REFERENCE: {
+                this._stateCharacterReference(cp);
+                break;
+            }
+            case State.NAMED_CHARACTER_REFERENCE: {
+                this._stateNamedCharacterReference(cp);
+                break;
+            }
+            case State.AMBIGUOUS_AMPERSAND: {
+                this._stateAmbiguousAmpersand(cp);
+                break;
+            }
+            case State.NUMERIC_CHARACTER_REFERENCE: {
+                this._stateNumericCharacterReference(cp);
+                break;
+            }
+            case State.HEXADEMICAL_CHARACTER_REFERENCE_START: {
+                this._stateHexademicalCharacterReferenceStart(cp);
+                break;
+            }
+            case State.HEXADEMICAL_CHARACTER_REFERENCE: {
+                this._stateHexademicalCharacterReference(cp);
+                break;
+            }
+            case State.DECIMAL_CHARACTER_REFERENCE: {
+                this._stateDecimalCharacterReference(cp);
+                break;
+            }
+            case State.NUMERIC_CHARACTER_REFERENCE_END: {
+                this._stateNumericCharacterReferenceEnd(cp);
+                break;
+            }
+            default: {
+                throw new Error('Unknown state');
+            }
+        }
+    }
+    // State machine
+    // Data state
+    //------------------------------------------------------------------
+    _stateData(cp) {
+        switch (cp) {
+            case $.LESS_THAN_SIGN: {
+                this.state = State.TAG_OPEN;
+                break;
+            }
+            case $.AMPERSAND: {
+                this.returnState = State.DATA;
+                this.state = State.CHARACTER_REFERENCE;
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                this._emitCodePoint(cp);
+                break;
+            }
+            case $.EOF: {
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this._emitCodePoint(cp);
+            }
+        }
+    }
+    //  RCDATA state
+    //------------------------------------------------------------------
+    _stateRcdata(cp) {
+        switch (cp) {
+            case $.AMPERSAND: {
+                this.returnState = State.RCDATA;
+                this.state = State.CHARACTER_REFERENCE;
+                break;
+            }
+            case $.LESS_THAN_SIGN: {
+                this.state = State.RCDATA_LESS_THAN_SIGN;
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                this._emitChars(REPLACEMENT_CHARACTER);
+                break;
+            }
+            case $.EOF: {
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this._emitCodePoint(cp);
+            }
+        }
+    }
+    // RAWTEXT state
+    //------------------------------------------------------------------
+    _stateRawtext(cp) {
+        switch (cp) {
+            case $.LESS_THAN_SIGN: {
+                this.state = State.RAWTEXT_LESS_THAN_SIGN;
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                this._emitChars(REPLACEMENT_CHARACTER);
+                break;
+            }
+            case $.EOF: {
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this._emitCodePoint(cp);
+            }
+        }
+    }
+    // Script data state
+    //------------------------------------------------------------------
+    _stateScriptData(cp) {
+        switch (cp) {
+            case $.LESS_THAN_SIGN: {
+                this.state = State.SCRIPT_DATA_LESS_THAN_SIGN;
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                this._emitChars(REPLACEMENT_CHARACTER);
+                break;
+            }
+            case $.EOF: {
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this._emitCodePoint(cp);
+            }
+        }
+    }
+    // PLAINTEXT state
+    //------------------------------------------------------------------
+    _statePlaintext(cp) {
+        switch (cp) {
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                this._emitChars(REPLACEMENT_CHARACTER);
+                break;
+            }
+            case $.EOF: {
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this._emitCodePoint(cp);
+            }
+        }
+    }
+    // Tag open state
+    //------------------------------------------------------------------
+    _stateTagOpen(cp) {
+        if (isAsciiLetter(cp)) {
+            this._createStartTagToken();
+            this.state = State.TAG_NAME;
+            this._stateTagName(cp);
+        }
+        else
+            switch (cp) {
+                case $.EXCLAMATION_MARK: {
+                    this.state = State.MARKUP_DECLARATION_OPEN;
+                    break;
+                }
+                case $.SOLIDUS: {
+                    this.state = State.END_TAG_OPEN;
+                    break;
+                }
+                case $.QUESTION_MARK: {
+                    this._err(ERR.unexpectedQuestionMarkInsteadOfTagName);
+                    this._createCommentToken(1);
+                    this.state = State.BOGUS_COMMENT;
+                    this._stateBogusComment(cp);
+                    break;
+                }
+                case $.EOF: {
+                    this._err(ERR.eofBeforeTagName);
+                    this._emitChars('<');
+                    this._emitEOFToken();
+                    break;
+                }
+                default: {
+                    this._err(ERR.invalidFirstCharacterOfTagName);
+                    this._emitChars('<');
+                    this.state = State.DATA;
+                    this._stateData(cp);
+                }
+            }
+    }
+    // End tag open state
+    //------------------------------------------------------------------
+    _stateEndTagOpen(cp) {
+        if (isAsciiLetter(cp)) {
+            this._createEndTagToken();
+            this.state = State.TAG_NAME;
+            this._stateTagName(cp);
+        }
+        else
+            switch (cp) {
+                case $.GREATER_THAN_SIGN: {
+                    this._err(ERR.missingEndTagName);
+                    this.state = State.DATA;
+                    break;
+                }
+                case $.EOF: {
+                    this._err(ERR.eofBeforeTagName);
+                    this._emitChars('</');
+                    this._emitEOFToken();
+                    break;
+                }
+                default: {
+                    this._err(ERR.invalidFirstCharacterOfTagName);
+                    this._createCommentToken(2);
+                    this.state = State.BOGUS_COMMENT;
+                    this._stateBogusComment(cp);
+                }
+            }
+    }
+    // Tag name state
+    //------------------------------------------------------------------
+    _stateTagName(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.SPACE:
+            case $.LINE_FEED:
+            case $.TABULATION:
+            case $.FORM_FEED: {
+                this.state = State.BEFORE_ATTRIBUTE_NAME;
+                break;
+            }
+            case $.SOLIDUS: {
+                this.state = State.SELF_CLOSING_START_TAG;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this.state = State.DATA;
+                this.emitCurrentTagToken();
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                token.tagName += REPLACEMENT_CHARACTER;
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInTag);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                token.tagName += String.fromCodePoint(isAsciiUpper(cp) ? toAsciiLower(cp) : cp);
+            }
+        }
+    }
+    // RCDATA less-than sign state
+    //------------------------------------------------------------------
+    _stateRcdataLessThanSign(cp) {
+        if (cp === $.SOLIDUS) {
+            this.state = State.RCDATA_END_TAG_OPEN;
+        }
+        else {
+            this._emitChars('<');
+            this.state = State.RCDATA;
+            this._stateRcdata(cp);
+        }
+    }
+    // RCDATA end tag open state
+    //------------------------------------------------------------------
+    _stateRcdataEndTagOpen(cp) {
+        if (isAsciiLetter(cp)) {
+            this.state = State.RCDATA_END_TAG_NAME;
+            this._stateRcdataEndTagName(cp);
+        }
+        else {
+            this._emitChars('</');
+            this.state = State.RCDATA;
+            this._stateRcdata(cp);
+        }
+    }
+    handleSpecialEndTag(_cp) {
+        if (!this.preprocessor.startsWith(this.lastStartTagName, false)) {
+            return !this._ensureHibernation();
+        }
+        this._createEndTagToken();
+        const token = this.currentToken;
+        token.tagName = this.lastStartTagName;
+        const cp = this.preprocessor.peek(this.lastStartTagName.length);
+        switch (cp) {
+            case $.SPACE:
+            case $.LINE_FEED:
+            case $.TABULATION:
+            case $.FORM_FEED: {
+                this._advanceBy(this.lastStartTagName.length);
+                this.state = State.BEFORE_ATTRIBUTE_NAME;
+                return false;
+            }
+            case $.SOLIDUS: {
+                this._advanceBy(this.lastStartTagName.length);
+                this.state = State.SELF_CLOSING_START_TAG;
+                return false;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this._advanceBy(this.lastStartTagName.length);
+                this.emitCurrentTagToken();
+                this.state = State.DATA;
+                return false;
+            }
+            default: {
+                return !this._ensureHibernation();
+            }
+        }
+    }
+    // RCDATA end tag name state
+    //------------------------------------------------------------------
+    _stateRcdataEndTagName(cp) {
+        if (this.handleSpecialEndTag(cp)) {
+            this._emitChars('</');
+            this.state = State.RCDATA;
+            this._stateRcdata(cp);
+        }
+    }
+    // RAWTEXT less-than sign state
+    //------------------------------------------------------------------
+    _stateRawtextLessThanSign(cp) {
+        if (cp === $.SOLIDUS) {
+            this.state = State.RAWTEXT_END_TAG_OPEN;
+        }
+        else {
+            this._emitChars('<');
+            this.state = State.RAWTEXT;
+            this._stateRawtext(cp);
+        }
+    }
+    // RAWTEXT end tag open state
+    //------------------------------------------------------------------
+    _stateRawtextEndTagOpen(cp) {
+        if (isAsciiLetter(cp)) {
+            this.state = State.RAWTEXT_END_TAG_NAME;
+            this._stateRawtextEndTagName(cp);
+        }
+        else {
+            this._emitChars('</');
+            this.state = State.RAWTEXT;
+            this._stateRawtext(cp);
+        }
+    }
+    // RAWTEXT end tag name state
+    //------------------------------------------------------------------
+    _stateRawtextEndTagName(cp) {
+        if (this.handleSpecialEndTag(cp)) {
+            this._emitChars('</');
+            this.state = State.RAWTEXT;
+            this._stateRawtext(cp);
+        }
+    }
+    // Script data less-than sign state
+    //------------------------------------------------------------------
+    _stateScriptDataLessThanSign(cp) {
+        switch (cp) {
+            case $.SOLIDUS: {
+                this.state = State.SCRIPT_DATA_END_TAG_OPEN;
+                break;
+            }
+            case $.EXCLAMATION_MARK: {
+                this.state = State.SCRIPT_DATA_ESCAPE_START;
+                this._emitChars('<!');
+                break;
+            }
+            default: {
+                this._emitChars('<');
+                this.state = State.SCRIPT_DATA;
+                this._stateScriptData(cp);
+            }
+        }
+    }
+    // Script data end tag open state
+    //------------------------------------------------------------------
+    _stateScriptDataEndTagOpen(cp) {
+        if (isAsciiLetter(cp)) {
+            this.state = State.SCRIPT_DATA_END_TAG_NAME;
+            this._stateScriptDataEndTagName(cp);
+        }
+        else {
+            this._emitChars('</');
+            this.state = State.SCRIPT_DATA;
+            this._stateScriptData(cp);
+        }
+    }
+    // Script data end tag name state
+    //------------------------------------------------------------------
+    _stateScriptDataEndTagName(cp) {
+        if (this.handleSpecialEndTag(cp)) {
+            this._emitChars('</');
+            this.state = State.SCRIPT_DATA;
+            this._stateScriptData(cp);
+        }
+    }
+    // Script data escape start state
+    //------------------------------------------------------------------
+    _stateScriptDataEscapeStart(cp) {
+        if (cp === $.HYPHEN_MINUS) {
+            this.state = State.SCRIPT_DATA_ESCAPE_START_DASH;
+            this._emitChars('-');
+        }
+        else {
+            this.state = State.SCRIPT_DATA;
+            this._stateScriptData(cp);
+        }
+    }
+    // Script data escape start dash state
+    //------------------------------------------------------------------
+    _stateScriptDataEscapeStartDash(cp) {
+        if (cp === $.HYPHEN_MINUS) {
+            this.state = State.SCRIPT_DATA_ESCAPED_DASH_DASH;
+            this._emitChars('-');
+        }
+        else {
+            this.state = State.SCRIPT_DATA;
+            this._stateScriptData(cp);
+        }
+    }
+    // Script data escaped state
+    //------------------------------------------------------------------
+    _stateScriptDataEscaped(cp) {
+        switch (cp) {
+            case $.HYPHEN_MINUS: {
+                this.state = State.SCRIPT_DATA_ESCAPED_DASH;
+                this._emitChars('-');
+                break;
+            }
+            case $.LESS_THAN_SIGN: {
+                this.state = State.SCRIPT_DATA_ESCAPED_LESS_THAN_SIGN;
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                this._emitChars(REPLACEMENT_CHARACTER);
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInScriptHtmlCommentLikeText);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this._emitCodePoint(cp);
+            }
+        }
+    }
+    // Script data escaped dash state
+    //------------------------------------------------------------------
+    _stateScriptDataEscapedDash(cp) {
+        switch (cp) {
+            case $.HYPHEN_MINUS: {
+                this.state = State.SCRIPT_DATA_ESCAPED_DASH_DASH;
+                this._emitChars('-');
+                break;
+            }
+            case $.LESS_THAN_SIGN: {
+                this.state = State.SCRIPT_DATA_ESCAPED_LESS_THAN_SIGN;
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                this.state = State.SCRIPT_DATA_ESCAPED;
+                this._emitChars(REPLACEMENT_CHARACTER);
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInScriptHtmlCommentLikeText);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this.state = State.SCRIPT_DATA_ESCAPED;
+                this._emitCodePoint(cp);
+            }
+        }
+    }
+    // Script data escaped dash dash state
+    //------------------------------------------------------------------
+    _stateScriptDataEscapedDashDash(cp) {
+        switch (cp) {
+            case $.HYPHEN_MINUS: {
+                this._emitChars('-');
+                break;
+            }
+            case $.LESS_THAN_SIGN: {
+                this.state = State.SCRIPT_DATA_ESCAPED_LESS_THAN_SIGN;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this.state = State.SCRIPT_DATA;
+                this._emitChars('>');
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                this.state = State.SCRIPT_DATA_ESCAPED;
+                this._emitChars(REPLACEMENT_CHARACTER);
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInScriptHtmlCommentLikeText);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this.state = State.SCRIPT_DATA_ESCAPED;
+                this._emitCodePoint(cp);
+            }
+        }
+    }
+    // Script data escaped less-than sign state
+    //------------------------------------------------------------------
+    _stateScriptDataEscapedLessThanSign(cp) {
+        if (cp === $.SOLIDUS) {
+            this.state = State.SCRIPT_DATA_ESCAPED_END_TAG_OPEN;
+        }
+        else if (isAsciiLetter(cp)) {
+            this._emitChars('<');
+            this.state = State.SCRIPT_DATA_DOUBLE_ESCAPE_START;
+            this._stateScriptDataDoubleEscapeStart(cp);
+        }
+        else {
+            this._emitChars('<');
+            this.state = State.SCRIPT_DATA_ESCAPED;
+            this._stateScriptDataEscaped(cp);
+        }
+    }
+    // Script data escaped end tag open state
+    //------------------------------------------------------------------
+    _stateScriptDataEscapedEndTagOpen(cp) {
+        if (isAsciiLetter(cp)) {
+            this.state = State.SCRIPT_DATA_ESCAPED_END_TAG_NAME;
+            this._stateScriptDataEscapedEndTagName(cp);
+        }
+        else {
+            this._emitChars('</');
+            this.state = State.SCRIPT_DATA_ESCAPED;
+            this._stateScriptDataEscaped(cp);
+        }
+    }
+    // Script data escaped end tag name state
+    //------------------------------------------------------------------
+    _stateScriptDataEscapedEndTagName(cp) {
+        if (this.handleSpecialEndTag(cp)) {
+            this._emitChars('</');
+            this.state = State.SCRIPT_DATA_ESCAPED;
+            this._stateScriptDataEscaped(cp);
+        }
+    }
+    // Script data double escape start state
+    //------------------------------------------------------------------
+    _stateScriptDataDoubleEscapeStart(cp) {
+        if (this.preprocessor.startsWith($$.SCRIPT, false) &&
+            isScriptDataDoubleEscapeSequenceEnd(this.preprocessor.peek($$.SCRIPT.length))) {
+            this._emitCodePoint(cp);
+            for (let i = 0; i < $$.SCRIPT.length; i++) {
+                this._emitCodePoint(this._consume());
+            }
+            this.state = State.SCRIPT_DATA_DOUBLE_ESCAPED;
+        }
+        else if (!this._ensureHibernation()) {
+            this.state = State.SCRIPT_DATA_ESCAPED;
+            this._stateScriptDataEscaped(cp);
+        }
+    }
+    // Script data double escaped state
+    //------------------------------------------------------------------
+    _stateScriptDataDoubleEscaped(cp) {
+        switch (cp) {
+            case $.HYPHEN_MINUS: {
+                this.state = State.SCRIPT_DATA_DOUBLE_ESCAPED_DASH;
+                this._emitChars('-');
+                break;
+            }
+            case $.LESS_THAN_SIGN: {
+                this.state = State.SCRIPT_DATA_DOUBLE_ESCAPED_LESS_THAN_SIGN;
+                this._emitChars('<');
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                this._emitChars(REPLACEMENT_CHARACTER);
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInScriptHtmlCommentLikeText);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this._emitCodePoint(cp);
+            }
+        }
+    }
+    // Script data double escaped dash state
+    //------------------------------------------------------------------
+    _stateScriptDataDoubleEscapedDash(cp) {
+        switch (cp) {
+            case $.HYPHEN_MINUS: {
+                this.state = State.SCRIPT_DATA_DOUBLE_ESCAPED_DASH_DASH;
+                this._emitChars('-');
+                break;
+            }
+            case $.LESS_THAN_SIGN: {
+                this.state = State.SCRIPT_DATA_DOUBLE_ESCAPED_LESS_THAN_SIGN;
+                this._emitChars('<');
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                this.state = State.SCRIPT_DATA_DOUBLE_ESCAPED;
+                this._emitChars(REPLACEMENT_CHARACTER);
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInScriptHtmlCommentLikeText);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this.state = State.SCRIPT_DATA_DOUBLE_ESCAPED;
+                this._emitCodePoint(cp);
+            }
+        }
+    }
+    // Script data double escaped dash dash state
+    //------------------------------------------------------------------
+    _stateScriptDataDoubleEscapedDashDash(cp) {
+        switch (cp) {
+            case $.HYPHEN_MINUS: {
+                this._emitChars('-');
+                break;
+            }
+            case $.LESS_THAN_SIGN: {
+                this.state = State.SCRIPT_DATA_DOUBLE_ESCAPED_LESS_THAN_SIGN;
+                this._emitChars('<');
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this.state = State.SCRIPT_DATA;
+                this._emitChars('>');
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                this.state = State.SCRIPT_DATA_DOUBLE_ESCAPED;
+                this._emitChars(REPLACEMENT_CHARACTER);
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInScriptHtmlCommentLikeText);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this.state = State.SCRIPT_DATA_DOUBLE_ESCAPED;
+                this._emitCodePoint(cp);
+            }
+        }
+    }
+    // Script data double escaped less-than sign state
+    //------------------------------------------------------------------
+    _stateScriptDataDoubleEscapedLessThanSign(cp) {
+        if (cp === $.SOLIDUS) {
+            this.state = State.SCRIPT_DATA_DOUBLE_ESCAPE_END;
+            this._emitChars('/');
+        }
+        else {
+            this.state = State.SCRIPT_DATA_DOUBLE_ESCAPED;
+            this._stateScriptDataDoubleEscaped(cp);
+        }
+    }
+    // Script data double escape end state
+    //------------------------------------------------------------------
+    _stateScriptDataDoubleEscapeEnd(cp) {
+        if (this.preprocessor.startsWith($$.SCRIPT, false) &&
+            isScriptDataDoubleEscapeSequenceEnd(this.preprocessor.peek($$.SCRIPT.length))) {
+            this._emitCodePoint(cp);
+            for (let i = 0; i < $$.SCRIPT.length; i++) {
+                this._emitCodePoint(this._consume());
+            }
+            this.state = State.SCRIPT_DATA_ESCAPED;
+        }
+        else if (!this._ensureHibernation()) {
+            this.state = State.SCRIPT_DATA_DOUBLE_ESCAPED;
+            this._stateScriptDataDoubleEscaped(cp);
+        }
+    }
+    // Before attribute name state
+    //------------------------------------------------------------------
+    _stateBeforeAttributeName(cp) {
+        switch (cp) {
+            case $.SPACE:
+            case $.LINE_FEED:
+            case $.TABULATION:
+            case $.FORM_FEED: {
+                // Ignore whitespace
+                break;
+            }
+            case $.SOLIDUS:
+            case $.GREATER_THAN_SIGN:
+            case $.EOF: {
+                this.state = State.AFTER_ATTRIBUTE_NAME;
+                this._stateAfterAttributeName(cp);
+                break;
+            }
+            case $.EQUALS_SIGN: {
+                this._err(ERR.unexpectedEqualsSignBeforeAttributeName);
+                this._createAttr('=');
+                this.state = State.ATTRIBUTE_NAME;
+                break;
+            }
+            default: {
+                this._createAttr('');
+                this.state = State.ATTRIBUTE_NAME;
+                this._stateAttributeName(cp);
+            }
+        }
+    }
+    // Attribute name state
+    //------------------------------------------------------------------
+    _stateAttributeName(cp) {
+        switch (cp) {
+            case $.SPACE:
+            case $.LINE_FEED:
+            case $.TABULATION:
+            case $.FORM_FEED:
+            case $.SOLIDUS:
+            case $.GREATER_THAN_SIGN:
+            case $.EOF: {
+                this._leaveAttrName();
+                this.state = State.AFTER_ATTRIBUTE_NAME;
+                this._stateAfterAttributeName(cp);
+                break;
+            }
+            case $.EQUALS_SIGN: {
+                this._leaveAttrName();
+                this.state = State.BEFORE_ATTRIBUTE_VALUE;
+                break;
+            }
+            case $.QUOTATION_MARK:
+            case $.APOSTROPHE:
+            case $.LESS_THAN_SIGN: {
+                this._err(ERR.unexpectedCharacterInAttributeName);
+                this.currentAttr.name += String.fromCodePoint(cp);
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                this.currentAttr.name += REPLACEMENT_CHARACTER;
+                break;
+            }
+            default: {
+                this.currentAttr.name += String.fromCodePoint(isAsciiUpper(cp) ? toAsciiLower(cp) : cp);
+            }
+        }
+    }
+    // After attribute name state
+    //------------------------------------------------------------------
+    _stateAfterAttributeName(cp) {
+        switch (cp) {
+            case $.SPACE:
+            case $.LINE_FEED:
+            case $.TABULATION:
+            case $.FORM_FEED: {
+                // Ignore whitespace
+                break;
+            }
+            case $.SOLIDUS: {
+                this.state = State.SELF_CLOSING_START_TAG;
+                break;
+            }
+            case $.EQUALS_SIGN: {
+                this.state = State.BEFORE_ATTRIBUTE_VALUE;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this.state = State.DATA;
+                this.emitCurrentTagToken();
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInTag);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this._createAttr('');
+                this.state = State.ATTRIBUTE_NAME;
+                this._stateAttributeName(cp);
+            }
+        }
+    }
+    // Before attribute value state
+    //------------------------------------------------------------------
+    _stateBeforeAttributeValue(cp) {
+        switch (cp) {
+            case $.SPACE:
+            case $.LINE_FEED:
+            case $.TABULATION:
+            case $.FORM_FEED: {
+                // Ignore whitespace
+                break;
+            }
+            case $.QUOTATION_MARK: {
+                this.state = State.ATTRIBUTE_VALUE_DOUBLE_QUOTED;
+                break;
+            }
+            case $.APOSTROPHE: {
+                this.state = State.ATTRIBUTE_VALUE_SINGLE_QUOTED;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this._err(ERR.missingAttributeValue);
+                this.state = State.DATA;
+                this.emitCurrentTagToken();
+                break;
+            }
+            default: {
+                this.state = State.ATTRIBUTE_VALUE_UNQUOTED;
+                this._stateAttributeValueUnquoted(cp);
+            }
+        }
+    }
+    // Attribute value (double-quoted) state
+    //------------------------------------------------------------------
+    _stateAttributeValueDoubleQuoted(cp) {
+        switch (cp) {
+            case $.QUOTATION_MARK: {
+                this.state = State.AFTER_ATTRIBUTE_VALUE_QUOTED;
+                break;
+            }
+            case $.AMPERSAND: {
+                this.returnState = State.ATTRIBUTE_VALUE_DOUBLE_QUOTED;
+                this.state = State.CHARACTER_REFERENCE;
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                this.currentAttr.value += REPLACEMENT_CHARACTER;
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInTag);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this.currentAttr.value += String.fromCodePoint(cp);
+            }
+        }
+    }
+    // Attribute value (single-quoted) state
+    //------------------------------------------------------------------
+    _stateAttributeValueSingleQuoted(cp) {
+        switch (cp) {
+            case $.APOSTROPHE: {
+                this.state = State.AFTER_ATTRIBUTE_VALUE_QUOTED;
+                break;
+            }
+            case $.AMPERSAND: {
+                this.returnState = State.ATTRIBUTE_VALUE_SINGLE_QUOTED;
+                this.state = State.CHARACTER_REFERENCE;
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                this.currentAttr.value += REPLACEMENT_CHARACTER;
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInTag);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this.currentAttr.value += String.fromCodePoint(cp);
+            }
+        }
+    }
+    // Attribute value (unquoted) state
+    //------------------------------------------------------------------
+    _stateAttributeValueUnquoted(cp) {
+        switch (cp) {
+            case $.SPACE:
+            case $.LINE_FEED:
+            case $.TABULATION:
+            case $.FORM_FEED: {
+                this._leaveAttrValue();
+                this.state = State.BEFORE_ATTRIBUTE_NAME;
+                break;
+            }
+            case $.AMPERSAND: {
+                this.returnState = State.ATTRIBUTE_VALUE_UNQUOTED;
+                this.state = State.CHARACTER_REFERENCE;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this._leaveAttrValue();
+                this.state = State.DATA;
+                this.emitCurrentTagToken();
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                this.currentAttr.value += REPLACEMENT_CHARACTER;
+                break;
+            }
+            case $.QUOTATION_MARK:
+            case $.APOSTROPHE:
+            case $.LESS_THAN_SIGN:
+            case $.EQUALS_SIGN:
+            case $.GRAVE_ACCENT: {
+                this._err(ERR.unexpectedCharacterInUnquotedAttributeValue);
+                this.currentAttr.value += String.fromCodePoint(cp);
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInTag);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this.currentAttr.value += String.fromCodePoint(cp);
+            }
+        }
+    }
+    // After attribute value (quoted) state
+    //------------------------------------------------------------------
+    _stateAfterAttributeValueQuoted(cp) {
+        switch (cp) {
+            case $.SPACE:
+            case $.LINE_FEED:
+            case $.TABULATION:
+            case $.FORM_FEED: {
+                this._leaveAttrValue();
+                this.state = State.BEFORE_ATTRIBUTE_NAME;
+                break;
+            }
+            case $.SOLIDUS: {
+                this._leaveAttrValue();
+                this.state = State.SELF_CLOSING_START_TAG;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this._leaveAttrValue();
+                this.state = State.DATA;
+                this.emitCurrentTagToken();
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInTag);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this._err(ERR.missingWhitespaceBetweenAttributes);
+                this.state = State.BEFORE_ATTRIBUTE_NAME;
+                this._stateBeforeAttributeName(cp);
+            }
+        }
+    }
+    // Self-closing start tag state
+    //------------------------------------------------------------------
+    _stateSelfClosingStartTag(cp) {
+        switch (cp) {
+            case $.GREATER_THAN_SIGN: {
+                const token = this.currentToken;
+                token.selfClosing = true;
+                this.state = State.DATA;
+                this.emitCurrentTagToken();
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInTag);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this._err(ERR.unexpectedSolidusInTag);
+                this.state = State.BEFORE_ATTRIBUTE_NAME;
+                this._stateBeforeAttributeName(cp);
+            }
+        }
+    }
+    // Bogus comment state
+    //------------------------------------------------------------------
+    _stateBogusComment(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.GREATER_THAN_SIGN: {
+                this.state = State.DATA;
+                this.emitCurrentComment(token);
+                break;
+            }
+            case $.EOF: {
+                this.emitCurrentComment(token);
+                this._emitEOFToken();
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                token.data += REPLACEMENT_CHARACTER;
+                break;
+            }
+            default: {
+                token.data += String.fromCodePoint(cp);
+            }
+        }
+    }
+    // Markup declaration open state
+    //------------------------------------------------------------------
+    _stateMarkupDeclarationOpen(cp) {
+        if (this._consumeSequenceIfMatch($$.DASH_DASH, true)) {
+            this._createCommentToken($$.DASH_DASH.length + 1);
+            this.state = State.COMMENT_START;
+        }
+        else if (this._consumeSequenceIfMatch($$.DOCTYPE, false)) {
+            // NOTE: Doctypes tokens are created without fixed offsets. We keep track of the moment a doctype *might* start here.
+            this.currentLocation = this.getCurrentLocation($$.DOCTYPE.length + 1);
+            this.state = State.DOCTYPE;
+        }
+        else if (this._consumeSequenceIfMatch($$.CDATA_START, true)) {
+            if (this.inForeignNode) {
+                this.state = State.CDATA_SECTION;
+            }
+            else {
+                this._err(ERR.cdataInHtmlContent);
+                this._createCommentToken($$.CDATA_START.length + 1);
+                this.currentToken.data = '[CDATA[';
+                this.state = State.BOGUS_COMMENT;
+            }
+        }
+        //NOTE: Sequence lookups can be abrupted by hibernation. In that case, lookup
+        //results are no longer valid and we will need to start over.
+        else if (!this._ensureHibernation()) {
+            this._err(ERR.incorrectlyOpenedComment);
+            this._createCommentToken(2);
+            this.state = State.BOGUS_COMMENT;
+            this._stateBogusComment(cp);
+        }
+    }
+    // Comment start state
+    //------------------------------------------------------------------
+    _stateCommentStart(cp) {
+        switch (cp) {
+            case $.HYPHEN_MINUS: {
+                this.state = State.COMMENT_START_DASH;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this._err(ERR.abruptClosingOfEmptyComment);
+                this.state = State.DATA;
+                const token = this.currentToken;
+                this.emitCurrentComment(token);
+                break;
+            }
+            default: {
+                this.state = State.COMMENT;
+                this._stateComment(cp);
+            }
+        }
+    }
+    // Comment start dash state
+    //------------------------------------------------------------------
+    _stateCommentStartDash(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.HYPHEN_MINUS: {
+                this.state = State.COMMENT_END;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this._err(ERR.abruptClosingOfEmptyComment);
+                this.state = State.DATA;
+                this.emitCurrentComment(token);
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInComment);
+                this.emitCurrentComment(token);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                token.data += '-';
+                this.state = State.COMMENT;
+                this._stateComment(cp);
+            }
+        }
+    }
+    // Comment state
+    //------------------------------------------------------------------
+    _stateComment(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.HYPHEN_MINUS: {
+                this.state = State.COMMENT_END_DASH;
+                break;
+            }
+            case $.LESS_THAN_SIGN: {
+                token.data += '<';
+                this.state = State.COMMENT_LESS_THAN_SIGN;
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                token.data += REPLACEMENT_CHARACTER;
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInComment);
+                this.emitCurrentComment(token);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                token.data += String.fromCodePoint(cp);
+            }
+        }
+    }
+    // Comment less-than sign state
+    //------------------------------------------------------------------
+    _stateCommentLessThanSign(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.EXCLAMATION_MARK: {
+                token.data += '!';
+                this.state = State.COMMENT_LESS_THAN_SIGN_BANG;
+                break;
+            }
+            case $.LESS_THAN_SIGN: {
+                token.data += '<';
+                break;
+            }
+            default: {
+                this.state = State.COMMENT;
+                this._stateComment(cp);
+            }
+        }
+    }
+    // Comment less-than sign bang state
+    //------------------------------------------------------------------
+    _stateCommentLessThanSignBang(cp) {
+        if (cp === $.HYPHEN_MINUS) {
+            this.state = State.COMMENT_LESS_THAN_SIGN_BANG_DASH;
+        }
+        else {
+            this.state = State.COMMENT;
+            this._stateComment(cp);
+        }
+    }
+    // Comment less-than sign bang dash state
+    //------------------------------------------------------------------
+    _stateCommentLessThanSignBangDash(cp) {
+        if (cp === $.HYPHEN_MINUS) {
+            this.state = State.COMMENT_LESS_THAN_SIGN_BANG_DASH_DASH;
+        }
+        else {
+            this.state = State.COMMENT_END_DASH;
+            this._stateCommentEndDash(cp);
+        }
+    }
+    // Comment less-than sign bang dash dash state
+    //------------------------------------------------------------------
+    _stateCommentLessThanSignBangDashDash(cp) {
+        if (cp !== $.GREATER_THAN_SIGN && cp !== $.EOF) {
+            this._err(ERR.nestedComment);
+        }
+        this.state = State.COMMENT_END;
+        this._stateCommentEnd(cp);
+    }
+    // Comment end dash state
+    //------------------------------------------------------------------
+    _stateCommentEndDash(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.HYPHEN_MINUS: {
+                this.state = State.COMMENT_END;
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInComment);
+                this.emitCurrentComment(token);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                token.data += '-';
+                this.state = State.COMMENT;
+                this._stateComment(cp);
+            }
+        }
+    }
+    // Comment end state
+    //------------------------------------------------------------------
+    _stateCommentEnd(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.GREATER_THAN_SIGN: {
+                this.state = State.DATA;
+                this.emitCurrentComment(token);
+                break;
+            }
+            case $.EXCLAMATION_MARK: {
+                this.state = State.COMMENT_END_BANG;
+                break;
+            }
+            case $.HYPHEN_MINUS: {
+                token.data += '-';
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInComment);
+                this.emitCurrentComment(token);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                token.data += '--';
+                this.state = State.COMMENT;
+                this._stateComment(cp);
+            }
+        }
+    }
+    // Comment end bang state
+    //------------------------------------------------------------------
+    _stateCommentEndBang(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.HYPHEN_MINUS: {
+                token.data += '--!';
+                this.state = State.COMMENT_END_DASH;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this._err(ERR.incorrectlyClosedComment);
+                this.state = State.DATA;
+                this.emitCurrentComment(token);
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInComment);
+                this.emitCurrentComment(token);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                token.data += '--!';
+                this.state = State.COMMENT;
+                this._stateComment(cp);
+            }
+        }
+    }
+    // DOCTYPE state
+    //------------------------------------------------------------------
+    _stateDoctype(cp) {
+        switch (cp) {
+            case $.SPACE:
+            case $.LINE_FEED:
+            case $.TABULATION:
+            case $.FORM_FEED: {
+                this.state = State.BEFORE_DOCTYPE_NAME;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this.state = State.BEFORE_DOCTYPE_NAME;
+                this._stateBeforeDoctypeName(cp);
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInDoctype);
+                this._createDoctypeToken(null);
+                const token = this.currentToken;
+                token.forceQuirks = true;
+                this.emitCurrentDoctype(token);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this._err(ERR.missingWhitespaceBeforeDoctypeName);
+                this.state = State.BEFORE_DOCTYPE_NAME;
+                this._stateBeforeDoctypeName(cp);
+            }
+        }
+    }
+    // Before DOCTYPE name state
+    //------------------------------------------------------------------
+    _stateBeforeDoctypeName(cp) {
+        if (isAsciiUpper(cp)) {
+            this._createDoctypeToken(String.fromCharCode(toAsciiLower(cp)));
+            this.state = State.DOCTYPE_NAME;
+        }
+        else
+            switch (cp) {
+                case $.SPACE:
+                case $.LINE_FEED:
+                case $.TABULATION:
+                case $.FORM_FEED: {
+                    // Ignore whitespace
+                    break;
+                }
+                case $.NULL: {
+                    this._err(ERR.unexpectedNullCharacter);
+                    this._createDoctypeToken(REPLACEMENT_CHARACTER);
+                    this.state = State.DOCTYPE_NAME;
+                    break;
+                }
+                case $.GREATER_THAN_SIGN: {
+                    this._err(ERR.missingDoctypeName);
+                    this._createDoctypeToken(null);
+                    const token = this.currentToken;
+                    token.forceQuirks = true;
+                    this.emitCurrentDoctype(token);
+                    this.state = State.DATA;
+                    break;
+                }
+                case $.EOF: {
+                    this._err(ERR.eofInDoctype);
+                    this._createDoctypeToken(null);
+                    const token = this.currentToken;
+                    token.forceQuirks = true;
+                    this.emitCurrentDoctype(token);
+                    this._emitEOFToken();
+                    break;
+                }
+                default: {
+                    this._createDoctypeToken(String.fromCodePoint(cp));
+                    this.state = State.DOCTYPE_NAME;
+                }
+            }
+    }
+    // DOCTYPE name state
+    //------------------------------------------------------------------
+    _stateDoctypeName(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.SPACE:
+            case $.LINE_FEED:
+            case $.TABULATION:
+            case $.FORM_FEED: {
+                this.state = State.AFTER_DOCTYPE_NAME;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this.state = State.DATA;
+                this.emitCurrentDoctype(token);
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                token.name += REPLACEMENT_CHARACTER;
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInDoctype);
+                token.forceQuirks = true;
+                this.emitCurrentDoctype(token);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                token.name += String.fromCodePoint(isAsciiUpper(cp) ? toAsciiLower(cp) : cp);
+            }
+        }
+    }
+    // After DOCTYPE name state
+    //------------------------------------------------------------------
+    _stateAfterDoctypeName(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.SPACE:
+            case $.LINE_FEED:
+            case $.TABULATION:
+            case $.FORM_FEED: {
+                // Ignore whitespace
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this.state = State.DATA;
+                this.emitCurrentDoctype(token);
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInDoctype);
+                token.forceQuirks = true;
+                this.emitCurrentDoctype(token);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                if (this._consumeSequenceIfMatch($$.PUBLIC, false)) {
+                    this.state = State.AFTER_DOCTYPE_PUBLIC_KEYWORD;
+                }
+                else if (this._consumeSequenceIfMatch($$.SYSTEM, false)) {
+                    this.state = State.AFTER_DOCTYPE_SYSTEM_KEYWORD;
+                }
+                //NOTE: sequence lookup can be abrupted by hibernation. In that case lookup
+                //results are no longer valid and we will need to start over.
+                else if (!this._ensureHibernation()) {
+                    this._err(ERR.invalidCharacterSequenceAfterDoctypeName);
+                    token.forceQuirks = true;
+                    this.state = State.BOGUS_DOCTYPE;
+                    this._stateBogusDoctype(cp);
+                }
+            }
+        }
+    }
+    // After DOCTYPE public keyword state
+    //------------------------------------------------------------------
+    _stateAfterDoctypePublicKeyword(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.SPACE:
+            case $.LINE_FEED:
+            case $.TABULATION:
+            case $.FORM_FEED: {
+                this.state = State.BEFORE_DOCTYPE_PUBLIC_IDENTIFIER;
+                break;
+            }
+            case $.QUOTATION_MARK: {
+                this._err(ERR.missingWhitespaceAfterDoctypePublicKeyword);
+                token.publicId = '';
+                this.state = State.DOCTYPE_PUBLIC_IDENTIFIER_DOUBLE_QUOTED;
+                break;
+            }
+            case $.APOSTROPHE: {
+                this._err(ERR.missingWhitespaceAfterDoctypePublicKeyword);
+                token.publicId = '';
+                this.state = State.DOCTYPE_PUBLIC_IDENTIFIER_SINGLE_QUOTED;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this._err(ERR.missingDoctypePublicIdentifier);
+                token.forceQuirks = true;
+                this.state = State.DATA;
+                this.emitCurrentDoctype(token);
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInDoctype);
+                token.forceQuirks = true;
+                this.emitCurrentDoctype(token);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this._err(ERR.missingQuoteBeforeDoctypePublicIdentifier);
+                token.forceQuirks = true;
+                this.state = State.BOGUS_DOCTYPE;
+                this._stateBogusDoctype(cp);
+            }
+        }
+    }
+    // Before DOCTYPE public identifier state
+    //------------------------------------------------------------------
+    _stateBeforeDoctypePublicIdentifier(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.SPACE:
+            case $.LINE_FEED:
+            case $.TABULATION:
+            case $.FORM_FEED: {
+                // Ignore whitespace
+                break;
+            }
+            case $.QUOTATION_MARK: {
+                token.publicId = '';
+                this.state = State.DOCTYPE_PUBLIC_IDENTIFIER_DOUBLE_QUOTED;
+                break;
+            }
+            case $.APOSTROPHE: {
+                token.publicId = '';
+                this.state = State.DOCTYPE_PUBLIC_IDENTIFIER_SINGLE_QUOTED;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this._err(ERR.missingDoctypePublicIdentifier);
+                token.forceQuirks = true;
+                this.state = State.DATA;
+                this.emitCurrentDoctype(token);
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInDoctype);
+                token.forceQuirks = true;
+                this.emitCurrentDoctype(token);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this._err(ERR.missingQuoteBeforeDoctypePublicIdentifier);
+                token.forceQuirks = true;
+                this.state = State.BOGUS_DOCTYPE;
+                this._stateBogusDoctype(cp);
+            }
+        }
+    }
+    // DOCTYPE public identifier (double-quoted) state
+    //------------------------------------------------------------------
+    _stateDoctypePublicIdentifierDoubleQuoted(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.QUOTATION_MARK: {
+                this.state = State.AFTER_DOCTYPE_PUBLIC_IDENTIFIER;
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                token.publicId += REPLACEMENT_CHARACTER;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this._err(ERR.abruptDoctypePublicIdentifier);
+                token.forceQuirks = true;
+                this.emitCurrentDoctype(token);
+                this.state = State.DATA;
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInDoctype);
+                token.forceQuirks = true;
+                this.emitCurrentDoctype(token);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                token.publicId += String.fromCodePoint(cp);
+            }
+        }
+    }
+    // DOCTYPE public identifier (single-quoted) state
+    //------------------------------------------------------------------
+    _stateDoctypePublicIdentifierSingleQuoted(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.APOSTROPHE: {
+                this.state = State.AFTER_DOCTYPE_PUBLIC_IDENTIFIER;
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                token.publicId += REPLACEMENT_CHARACTER;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this._err(ERR.abruptDoctypePublicIdentifier);
+                token.forceQuirks = true;
+                this.emitCurrentDoctype(token);
+                this.state = State.DATA;
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInDoctype);
+                token.forceQuirks = true;
+                this.emitCurrentDoctype(token);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                token.publicId += String.fromCodePoint(cp);
+            }
+        }
+    }
+    // After DOCTYPE public identifier state
+    //------------------------------------------------------------------
+    _stateAfterDoctypePublicIdentifier(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.SPACE:
+            case $.LINE_FEED:
+            case $.TABULATION:
+            case $.FORM_FEED: {
+                this.state = State.BETWEEN_DOCTYPE_PUBLIC_AND_SYSTEM_IDENTIFIERS;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this.state = State.DATA;
+                this.emitCurrentDoctype(token);
+                break;
+            }
+            case $.QUOTATION_MARK: {
+                this._err(ERR.missingWhitespaceBetweenDoctypePublicAndSystemIdentifiers);
+                token.systemId = '';
+                this.state = State.DOCTYPE_SYSTEM_IDENTIFIER_DOUBLE_QUOTED;
+                break;
+            }
+            case $.APOSTROPHE: {
+                this._err(ERR.missingWhitespaceBetweenDoctypePublicAndSystemIdentifiers);
+                token.systemId = '';
+                this.state = State.DOCTYPE_SYSTEM_IDENTIFIER_SINGLE_QUOTED;
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInDoctype);
+                token.forceQuirks = true;
+                this.emitCurrentDoctype(token);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this._err(ERR.missingQuoteBeforeDoctypeSystemIdentifier);
+                token.forceQuirks = true;
+                this.state = State.BOGUS_DOCTYPE;
+                this._stateBogusDoctype(cp);
+            }
+        }
+    }
+    // Between DOCTYPE public and system identifiers state
+    //------------------------------------------------------------------
+    _stateBetweenDoctypePublicAndSystemIdentifiers(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.SPACE:
+            case $.LINE_FEED:
+            case $.TABULATION:
+            case $.FORM_FEED: {
+                // Ignore whitespace
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this.emitCurrentDoctype(token);
+                this.state = State.DATA;
+                break;
+            }
+            case $.QUOTATION_MARK: {
+                token.systemId = '';
+                this.state = State.DOCTYPE_SYSTEM_IDENTIFIER_DOUBLE_QUOTED;
+                break;
+            }
+            case $.APOSTROPHE: {
+                token.systemId = '';
+                this.state = State.DOCTYPE_SYSTEM_IDENTIFIER_SINGLE_QUOTED;
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInDoctype);
+                token.forceQuirks = true;
+                this.emitCurrentDoctype(token);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this._err(ERR.missingQuoteBeforeDoctypeSystemIdentifier);
+                token.forceQuirks = true;
+                this.state = State.BOGUS_DOCTYPE;
+                this._stateBogusDoctype(cp);
+            }
+        }
+    }
+    // After DOCTYPE system keyword state
+    //------------------------------------------------------------------
+    _stateAfterDoctypeSystemKeyword(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.SPACE:
+            case $.LINE_FEED:
+            case $.TABULATION:
+            case $.FORM_FEED: {
+                this.state = State.BEFORE_DOCTYPE_SYSTEM_IDENTIFIER;
+                break;
+            }
+            case $.QUOTATION_MARK: {
+                this._err(ERR.missingWhitespaceAfterDoctypeSystemKeyword);
+                token.systemId = '';
+                this.state = State.DOCTYPE_SYSTEM_IDENTIFIER_DOUBLE_QUOTED;
+                break;
+            }
+            case $.APOSTROPHE: {
+                this._err(ERR.missingWhitespaceAfterDoctypeSystemKeyword);
+                token.systemId = '';
+                this.state = State.DOCTYPE_SYSTEM_IDENTIFIER_SINGLE_QUOTED;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this._err(ERR.missingDoctypeSystemIdentifier);
+                token.forceQuirks = true;
+                this.state = State.DATA;
+                this.emitCurrentDoctype(token);
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInDoctype);
+                token.forceQuirks = true;
+                this.emitCurrentDoctype(token);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this._err(ERR.missingQuoteBeforeDoctypeSystemIdentifier);
+                token.forceQuirks = true;
+                this.state = State.BOGUS_DOCTYPE;
+                this._stateBogusDoctype(cp);
+            }
+        }
+    }
+    // Before DOCTYPE system identifier state
+    //------------------------------------------------------------------
+    _stateBeforeDoctypeSystemIdentifier(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.SPACE:
+            case $.LINE_FEED:
+            case $.TABULATION:
+            case $.FORM_FEED: {
+                // Ignore whitespace
+                break;
+            }
+            case $.QUOTATION_MARK: {
+                token.systemId = '';
+                this.state = State.DOCTYPE_SYSTEM_IDENTIFIER_DOUBLE_QUOTED;
+                break;
+            }
+            case $.APOSTROPHE: {
+                token.systemId = '';
+                this.state = State.DOCTYPE_SYSTEM_IDENTIFIER_SINGLE_QUOTED;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this._err(ERR.missingDoctypeSystemIdentifier);
+                token.forceQuirks = true;
+                this.state = State.DATA;
+                this.emitCurrentDoctype(token);
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInDoctype);
+                token.forceQuirks = true;
+                this.emitCurrentDoctype(token);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this._err(ERR.missingQuoteBeforeDoctypeSystemIdentifier);
+                token.forceQuirks = true;
+                this.state = State.BOGUS_DOCTYPE;
+                this._stateBogusDoctype(cp);
+            }
+        }
+    }
+    // DOCTYPE system identifier (double-quoted) state
+    //------------------------------------------------------------------
+    _stateDoctypeSystemIdentifierDoubleQuoted(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.QUOTATION_MARK: {
+                this.state = State.AFTER_DOCTYPE_SYSTEM_IDENTIFIER;
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                token.systemId += REPLACEMENT_CHARACTER;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this._err(ERR.abruptDoctypeSystemIdentifier);
+                token.forceQuirks = true;
+                this.emitCurrentDoctype(token);
+                this.state = State.DATA;
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInDoctype);
+                token.forceQuirks = true;
+                this.emitCurrentDoctype(token);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                token.systemId += String.fromCodePoint(cp);
+            }
+        }
+    }
+    // DOCTYPE system identifier (single-quoted) state
+    //------------------------------------------------------------------
+    _stateDoctypeSystemIdentifierSingleQuoted(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.APOSTROPHE: {
+                this.state = State.AFTER_DOCTYPE_SYSTEM_IDENTIFIER;
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                token.systemId += REPLACEMENT_CHARACTER;
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this._err(ERR.abruptDoctypeSystemIdentifier);
+                token.forceQuirks = true;
+                this.emitCurrentDoctype(token);
+                this.state = State.DATA;
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInDoctype);
+                token.forceQuirks = true;
+                this.emitCurrentDoctype(token);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                token.systemId += String.fromCodePoint(cp);
+            }
+        }
+    }
+    // After DOCTYPE system identifier state
+    //------------------------------------------------------------------
+    _stateAfterDoctypeSystemIdentifier(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.SPACE:
+            case $.LINE_FEED:
+            case $.TABULATION:
+            case $.FORM_FEED: {
+                // Ignore whitespace
+                break;
+            }
+            case $.GREATER_THAN_SIGN: {
+                this.emitCurrentDoctype(token);
+                this.state = State.DATA;
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInDoctype);
+                token.forceQuirks = true;
+                this.emitCurrentDoctype(token);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this._err(ERR.unexpectedCharacterAfterDoctypeSystemIdentifier);
+                this.state = State.BOGUS_DOCTYPE;
+                this._stateBogusDoctype(cp);
+            }
+        }
+    }
+    // Bogus DOCTYPE state
+    //------------------------------------------------------------------
+    _stateBogusDoctype(cp) {
+        const token = this.currentToken;
+        switch (cp) {
+            case $.GREATER_THAN_SIGN: {
+                this.emitCurrentDoctype(token);
+                this.state = State.DATA;
+                break;
+            }
+            case $.NULL: {
+                this._err(ERR.unexpectedNullCharacter);
+                break;
+            }
+            case $.EOF: {
+                this.emitCurrentDoctype(token);
+                this._emitEOFToken();
+                break;
+            }
+            default:
+            // Do nothing
+        }
+    }
+    // CDATA section state
+    //------------------------------------------------------------------
+    _stateCdataSection(cp) {
+        switch (cp) {
+            case $.RIGHT_SQUARE_BRACKET: {
+                this.state = State.CDATA_SECTION_BRACKET;
+                break;
+            }
+            case $.EOF: {
+                this._err(ERR.eofInCdata);
+                this._emitEOFToken();
+                break;
+            }
+            default: {
+                this._emitCodePoint(cp);
+            }
+        }
+    }
+    // CDATA section bracket state
+    //------------------------------------------------------------------
+    _stateCdataSectionBracket(cp) {
+        if (cp === $.RIGHT_SQUARE_BRACKET) {
+            this.state = State.CDATA_SECTION_END;
+        }
+        else {
+            this._emitChars(']');
+            this.state = State.CDATA_SECTION;
+            this._stateCdataSection(cp);
+        }
+    }
+    // CDATA section end state
+    //------------------------------------------------------------------
+    _stateCdataSectionEnd(cp) {
+        switch (cp) {
+            case $.GREATER_THAN_SIGN: {
+                this.state = State.DATA;
+                break;
+            }
+            case $.RIGHT_SQUARE_BRACKET: {
+                this._emitChars(']');
+                break;
+            }
+            default: {
+                this._emitChars(']]');
+                this.state = State.CDATA_SECTION;
+                this._stateCdataSection(cp);
+            }
+        }
+    }
+    // Character reference state
+    //------------------------------------------------------------------
+    _stateCharacterReference(cp) {
+        if (cp === $.NUMBER_SIGN) {
+            this.state = State.NUMERIC_CHARACTER_REFERENCE;
+        }
+        else if (isAsciiAlphaNumeric(cp)) {
+            this.state = State.NAMED_CHARACTER_REFERENCE;
+            this._stateNamedCharacterReference(cp);
+        }
+        else {
+            this._flushCodePointConsumedAsCharacterReference($.AMPERSAND);
+            this._reconsumeInState(this.returnState, cp);
+        }
+    }
+    // Named character reference state
+    //------------------------------------------------------------------
+    _stateNamedCharacterReference(cp) {
+        const matchResult = this._matchNamedCharacterReference(cp);
+        //NOTE: Matching can be abrupted by hibernation. In that case, match
+        //results are no longer valid and we will need to start over.
+        if (this._ensureHibernation()) {
+            // Stay in the state, try again.
+        }
+        else if (matchResult) {
+            for (let i = 0; i < matchResult.length; i++) {
+                this._flushCodePointConsumedAsCharacterReference(matchResult[i]);
+            }
+            this.state = this.returnState;
+        }
+        else {
+            this._flushCodePointConsumedAsCharacterReference($.AMPERSAND);
+            this.state = State.AMBIGUOUS_AMPERSAND;
+        }
+    }
+    // Ambiguos ampersand state
+    //------------------------------------------------------------------
+    _stateAmbiguousAmpersand(cp) {
+        if (isAsciiAlphaNumeric(cp)) {
+            this._flushCodePointConsumedAsCharacterReference(cp);
+        }
+        else {
+            if (cp === $.SEMICOLON) {
+                this._err(ERR.unknownNamedCharacterReference);
+            }
+            this._reconsumeInState(this.returnState, cp);
+        }
+    }
+    // Numeric character reference state
+    //------------------------------------------------------------------
+    _stateNumericCharacterReference(cp) {
+        this.charRefCode = 0;
+        if (cp === $.LATIN_SMALL_X || cp === $.LATIN_CAPITAL_X) {
+            this.state = State.HEXADEMICAL_CHARACTER_REFERENCE_START;
+        }
+        // Inlined decimal character reference start state
+        else if (isAsciiDigit(cp)) {
+            this.state = State.DECIMAL_CHARACTER_REFERENCE;
+            this._stateDecimalCharacterReference(cp);
+        }
+        else {
+            this._err(ERR.absenceOfDigitsInNumericCharacterReference);
+            this._flushCodePointConsumedAsCharacterReference($.AMPERSAND);
+            this._flushCodePointConsumedAsCharacterReference($.NUMBER_SIGN);
+            this._reconsumeInState(this.returnState, cp);
+        }
+    }
+    // Hexademical character reference start state
+    //------------------------------------------------------------------
+    _stateHexademicalCharacterReferenceStart(cp) {
+        if (isAsciiHexDigit(cp)) {
+            this.state = State.HEXADEMICAL_CHARACTER_REFERENCE;
+            this._stateHexademicalCharacterReference(cp);
+        }
+        else {
+            this._err(ERR.absenceOfDigitsInNumericCharacterReference);
+            this._flushCodePointConsumedAsCharacterReference($.AMPERSAND);
+            this._flushCodePointConsumedAsCharacterReference($.NUMBER_SIGN);
+            this._unconsume(2);
+            this.state = this.returnState;
+        }
+    }
+    // Hexademical character reference state
+    //------------------------------------------------------------------
+    _stateHexademicalCharacterReference(cp) {
+        if (isAsciiUpperHexDigit(cp)) {
+            this.charRefCode = this.charRefCode * 16 + cp - 0x37;
+        }
+        else if (isAsciiLowerHexDigit(cp)) {
+            this.charRefCode = this.charRefCode * 16 + cp - 0x57;
+        }
+        else if (isAsciiDigit(cp)) {
+            this.charRefCode = this.charRefCode * 16 + cp - 0x30;
+        }
+        else if (cp === $.SEMICOLON) {
+            this.state = State.NUMERIC_CHARACTER_REFERENCE_END;
+        }
+        else {
+            this._err(ERR.missingSemicolonAfterCharacterReference);
+            this.state = State.NUMERIC_CHARACTER_REFERENCE_END;
+            this._stateNumericCharacterReferenceEnd(cp);
+        }
+    }
+    // Decimal character reference state
+    //------------------------------------------------------------------
+    _stateDecimalCharacterReference(cp) {
+        if (isAsciiDigit(cp)) {
+            this.charRefCode = this.charRefCode * 10 + cp - 0x30;
+        }
+        else if (cp === $.SEMICOLON) {
+            this.state = State.NUMERIC_CHARACTER_REFERENCE_END;
+        }
+        else {
+            this._err(ERR.missingSemicolonAfterCharacterReference);
+            this.state = State.NUMERIC_CHARACTER_REFERENCE_END;
+            this._stateNumericCharacterReferenceEnd(cp);
+        }
+    }
+    // Numeric character reference end state
+    //------------------------------------------------------------------
+    _stateNumericCharacterReferenceEnd(cp) {
+        if (this.charRefCode === $.NULL) {
+            this._err(ERR.nullCharacterReference);
+            this.charRefCode = $.REPLACEMENT_CHARACTER;
+        }
+        else if (this.charRefCode > 1114111) {
+            this._err(ERR.characterReferenceOutsideUnicodeRange);
+            this.charRefCode = $.REPLACEMENT_CHARACTER;
+        }
+        else if (isSurrogate(this.charRefCode)) {
+            this._err(ERR.surrogateCharacterReference);
+            this.charRefCode = $.REPLACEMENT_CHARACTER;
+        }
+        else if (isUndefinedCodePoint(this.charRefCode)) {
+            this._err(ERR.noncharacterCharacterReference);
+        }
+        else if (isControlCodePoint(this.charRefCode) || this.charRefCode === $.CARRIAGE_RETURN) {
+            this._err(ERR.controlCharacterReference);
+            const replacement = C1_CONTROLS_REFERENCE_REPLACEMENTS.get(this.charRefCode);
+            if (replacement !== undefined) {
+                this.charRefCode = replacement;
+            }
+        }
+        this._flushCodePointConsumedAsCharacterReference(this.charRefCode);
+        this._reconsumeInState(this.returnState, cp);
+    }
+}
+//# sourceMappingURL=index.js.map
\ No newline at end of file
diff --git a/includes/external/addressbook/node_modules/parse5/dist/tokenizer/preprocessor.d.ts b/includes/external/addressbook/node_modules/parse5/dist/tokenizer/preprocessor.d.ts
new file mode 100644
index 0000000..e74a590
--- /dev/null
+++ b/includes/external/addressbook/node_modules/parse5/dist/tokenizer/preprocessor.d.ts
@@ -0,0 +1,37 @@
+import { ERR, type ParserError, type ParserErrorHandler } from '../common/error-codes.js';
+export declare class Preprocessor {
+    private handler;
+    html: string;
+    private pos;
+    private lastGapPos;
+    private gapStack;
+    private skipNextNewLine;
+    private lastChunkWritten;
+    endOfChunkHit: boolean;
+    bufferWaterline: number;
+    private isEol;
+    private lineStartPos;
+    droppedBufferSize: number;
+    line: number;
+    constructor(handler: {
+        onParseError?: ParserErrorHandler | null;
+    });
+    /** The column on the current line. If we just saw a gap (eg. a surrogate pair), return the index before. */
+    get col(): number;
+    get offset(): number;
+    getError(code: ERR): ParserError;
+    private lastErrOffset;
+    private _err;
+    private _addGap;
+    private _processSurrogate;
+    willDropParsedChunk(): boolean;
+    dropParsedChunk(): void;
+    write(chunk: string, isLastChunk: boolean): void;
+    insertHtmlAtCurrentPos(chunk: string): void;
+    startsWith(pattern: string, caseSensitive: boolean): boolean;
+    peek(offset: number): number;
+    advance(): number;
+    private _checkForProblematicCharacters;
+    retreat(count: number): void;
+}
+//# sourceMappingURL=preprocessor.d.ts.map
\ No newline at end of file
diff --git a/includes/external/addressbook/node_modules/parse5/dist/tokenizer/preprocessor.js b/includes/external/addressbook/node_modules/parse5/dist/tokenizer/preprocessor.js
new file mode 100644
index 0000000..25f6d6b
--- /dev/null
+++ b/includes/external/addressbook/node_modules/parse5/dist/tokenizer/preprocessor.js
@@ -0,0 +1,195 @@
+import { CODE_POINTS as $, getSurrogatePairCodePoint, isControlCodePoint, isSurrogate, isSurrogatePair, isUndefinedCodePoint, } from '../common/unicode.js';
+import { ERR } from '../common/error-codes.js';
+//Const
+const DEFAULT_BUFFER_WATERLINE = 1 << 16;
+//Preprocessor
+//NOTE: HTML input preprocessing
+//(see: http://www.whatwg.org/specs/web-apps/current-work/multipage/parsing.html#preprocessing-the-input-stream)
+export class Preprocessor {
+    constructor(handler) {
+        this.handler = handler;
+        this.html = '';
+        this.pos = -1;
+        // NOTE: Initial `lastGapPos` is -2, to ensure `col` on initialisation is 0
+        this.lastGapPos = -2;
+        this.gapStack = [];
+        this.skipNextNewLine = false;
+        this.lastChunkWritten = false;
+        this.endOfChunkHit = false;
+        this.bufferWaterline = DEFAULT_BUFFER_WATERLINE;
+        this.isEol = false;
+        this.lineStartPos = 0;
+        this.droppedBufferSize = 0;
+        this.line = 1;
+        //NOTE: avoid reporting errors twice on advance/retreat
+        this.lastErrOffset = -1;
+    }
+    /** The column on the current line. If we just saw a gap (eg. a surrogate pair), return the index before. */
+    get col() {
+        return this.pos - this.lineStartPos + Number(this.lastGapPos !== this.pos);
+    }
+    get offset() {
+        return this.droppedBufferSize + this.pos;
+    }
+    getError(code) {
+        const { line, col, offset } = this;
+        return {
+            code,
+            startLine: line,
+            endLine: line,
+            startCol: col,
+            endCol: col,
+            startOffset: offset,
+            endOffset: offset,
+        };
+    }
+    _err(code) {
+        if (this.handler.onParseError && this.lastErrOffset !== this.offset) {
+            this.lastErrOffset = this.offset;
+            this.handler.onParseError(this.getError(code));
+        }
+    }
+    _addGap() {
+        this.gapStack.push(this.lastGapPos);
+        this.lastGapPos = this.pos;
+    }
+    _processSurrogate(cp) {
+        //NOTE: try to peek a surrogate pair
+        if (this.pos !== this.html.length - 1) {
+            const nextCp = this.html.charCodeAt(this.pos + 1);
+            if (isSurrogatePair(nextCp)) {
+                //NOTE: we have a surrogate pair. Peek pair character and recalculate code point.
+                this.pos++;
+                //NOTE: add a gap that should be avoided during retreat
+                this._addGap();
+                return getSurrogatePairCodePoint(cp, nextCp);
+            }
+        }
+        //NOTE: we are at the end of a chunk, therefore we can't infer the surrogate pair yet.
+        else if (!this.lastChunkWritten) {
+            this.endOfChunkHit = true;
+            return $.EOF;
+        }
+        //NOTE: isolated surrogate
+        this._err(ERR.surrogateInInputStream);
+        return cp;
+    }
+    willDropParsedChunk() {
+        return this.pos > this.bufferWaterline;
+    }
+    dropParsedChunk() {
+        if (this.willDropParsedChunk()) {
+            this.html = this.html.substring(this.pos);
+            this.lineStartPos -= this.pos;
+            this.droppedBufferSize += this.pos;
+            this.pos = 0;
+            this.lastGapPos = -2;
+            this.gapStack.length = 0;
+        }
+    }
+    write(chunk, isLastChunk) {
+        if (this.html.length > 0) {
+            this.html += chunk;
+        }
+        else {
+            this.html = chunk;
+        }
+        this.endOfChunkHit = false;
+        this.lastChunkWritten = isLastChunk;
+    }
+    insertHtmlAtCurrentPos(chunk) {
+        this.html = this.html.substring(0, this.pos + 1) + chunk + this.html.substring(this.pos + 1);
+        this.endOfChunkHit = false;
+    }
+    startsWith(pattern, caseSensitive) {
+        // Check if our buffer has enough characters
+        if (this.pos + pattern.length > this.html.length) {
+            this.endOfChunkHit = !this.lastChunkWritten;
+            return false;
+        }
+        if (caseSensitive) {
+            return this.html.startsWith(pattern, this.pos);
+        }
+        for (let i = 0; i < pattern.length; i++) {
+            const cp = this.html.charCodeAt(this.pos + i) | 0x20;
+            if (cp !== pattern.charCodeAt(i)) {
+                return false;
+            }
+        }
+        return true;
+    }
+    peek(offset) {
+        const pos = this.pos + offset;
+        if (pos >= this.html.length) {
+            this.endOfChunkHit = !this.lastChunkWritten;
+            return $.EOF;
+        }
+        const code = this.html.charCodeAt(pos);
+        return code === $.CARRIAGE_RETURN ? $.LINE_FEED : code;
+    }
+    advance() {
+        this.pos++;
+        //NOTE: LF should be in the last column of the line
+        if (this.isEol) {
+            this.isEol = false;
+            this.line++;
+            this.lineStartPos = this.pos;
+        }
+        if (this.pos >= this.html.length) {
+            this.endOfChunkHit = !this.lastChunkWritten;
+            return $.EOF;
+        }
+        let cp = this.html.charCodeAt(this.pos);
+        //NOTE: all U+000D CARRIAGE RETURN (CR) characters must be converted to U+000A LINE FEED (LF) characters
+        if (cp === $.CARRIAGE_RETURN) {
+            this.isEol = true;
+            this.skipNextNewLine = true;
+            return $.LINE_FEED;
+        }
+        //NOTE: any U+000A LINE FEED (LF) characters that immediately follow a U+000D CARRIAGE RETURN (CR) character
+        //must be ignored.
+        if (cp === $.LINE_FEED) {
+            this.isEol = true;
+            if (this.skipNextNewLine) {
+                // `line` will be bumped again in the recursive call.
+                this.line--;
+                this.skipNextNewLine = false;
+                this._addGap();
+                return this.advance();
+            }
+        }
+        this.skipNextNewLine = false;
+        if (isSurrogate(cp)) {
+            cp = this._processSurrogate(cp);
+        }
+        //OPTIMIZATION: first check if code point is in the common allowed
+        //range (ASCII alphanumeric, whitespaces, big chunk of BMP)
+        //before going into detailed performance cost validation.
+        const isCommonValidRange = this.handler.onParseError === null ||
+            (cp > 0x1f && cp < 0x7f) ||
+            cp === $.LINE_FEED ||
+            cp === $.CARRIAGE_RETURN ||
+            (cp > 0x9f && cp < 64976);
+        if (!isCommonValidRange) {
+            this._checkForProblematicCharacters(cp);
+        }
+        return cp;
+    }
+    _checkForProblematicCharacters(cp) {
+        if (isControlCodePoint(cp)) {
+            this._err(ERR.controlCharacterInInputStream);
+        }
+        else if (isUndefinedCodePoint(cp)) {
+            this._err(ERR.noncharacterInInputStream);
+        }
+    }
+    retreat(count) {
+        this.pos -= count;
+        while (this.pos < this.lastGapPos) {
+            this.lastGapPos = this.gapStack.pop();
+            this.pos--;
+        }
+        this.isEol = false;
+    }
+}
+//# sourceMappingURL=preprocessor.js.map
\ No newline at end of file