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182 lines
5.6 KiB
182 lines
5.6 KiB
2 years ago
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/** All the states the tokenizer can be in. */
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declare const enum State {
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Text = 1,
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BeforeTagName = 2,
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InTagName = 3,
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InSelfClosingTag = 4,
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BeforeClosingTagName = 5,
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InClosingTagName = 6,
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AfterClosingTagName = 7,
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BeforeAttributeName = 8,
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InAttributeName = 9,
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AfterAttributeName = 10,
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BeforeAttributeValue = 11,
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InAttributeValueDq = 12,
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InAttributeValueSq = 13,
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InAttributeValueNq = 14,
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BeforeDeclaration = 15,
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InDeclaration = 16,
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InProcessingInstruction = 17,
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BeforeComment = 18,
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InComment = 19,
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InSpecialComment = 20,
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AfterComment1 = 21,
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AfterComment2 = 22,
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BeforeCdata1 = 23,
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BeforeCdata2 = 24,
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BeforeCdata3 = 25,
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BeforeCdata4 = 26,
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BeforeCdata5 = 27,
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BeforeCdata6 = 28,
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InCdata = 29,
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AfterCdata1 = 30,
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AfterCdata2 = 31,
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BeforeSpecialS = 32,
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BeforeSpecialSEnd = 33,
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BeforeScript1 = 34,
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BeforeScript2 = 35,
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BeforeScript3 = 36,
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BeforeScript4 = 37,
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BeforeScript5 = 38,
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AfterScript1 = 39,
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AfterScript2 = 40,
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AfterScript3 = 41,
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AfterScript4 = 42,
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AfterScript5 = 43,
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BeforeStyle1 = 44,
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BeforeStyle2 = 45,
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BeforeStyle3 = 46,
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BeforeStyle4 = 47,
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AfterStyle1 = 48,
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AfterStyle2 = 49,
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AfterStyle3 = 50,
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AfterStyle4 = 51,
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BeforeSpecialT = 52,
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BeforeSpecialTEnd = 53,
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BeforeTitle1 = 54,
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BeforeTitle2 = 55,
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BeforeTitle3 = 56,
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BeforeTitle4 = 57,
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AfterTitle1 = 58,
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AfterTitle2 = 59,
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AfterTitle3 = 60,
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AfterTitle4 = 61,
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BeforeEntity = 62,
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BeforeNumericEntity = 63,
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InNamedEntity = 64,
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InNumericEntity = 65,
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InHexEntity = 66
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}
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export interface Callbacks {
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onattribdata(value: string): void;
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onattribend(quote: string | undefined | null): void;
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onattribname(name: string): void;
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oncdata(data: string): void;
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onclosetag(name: string): void;
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oncomment(data: string): void;
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ondeclaration(content: string): void;
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onend(): void;
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onerror(error: Error, state?: State): void;
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onopentagend(): void;
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onopentagname(name: string): void;
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onprocessinginstruction(instruction: string): void;
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onselfclosingtag(): void;
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ontext(value: string): void;
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}
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export default class Tokenizer {
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/** The current state the tokenizer is in. */
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_state: State;
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/** The read buffer. */
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private buffer;
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/** The beginning of the section that is currently being read. */
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sectionStart: number;
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/** The index within the buffer that we are currently looking at. */
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_index: number;
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/**
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* Data that has already been processed will be removed from the buffer occasionally.
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* `_bufferOffset` keeps track of how many characters have been removed, to make sure position information is accurate.
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*/
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private bufferOffset;
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/** Some behavior, eg. when decoding entities, is done while we are in another state. This keeps track of the other state type. */
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private baseState;
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/** For special parsing behavior inside of script and style tags. */
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private special;
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/** Indicates whether the tokenizer has been paused. */
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private running;
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/** Indicates whether the tokenizer has finished running / `.end` has been called. */
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private ended;
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private readonly cbs;
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private readonly xmlMode;
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private readonly decodeEntities;
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constructor(options: {
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xmlMode?: boolean;
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decodeEntities?: boolean;
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} | null, cbs: Callbacks);
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reset(): void;
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write(chunk: string): void;
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end(chunk?: string): void;
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pause(): void;
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resume(): void;
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/**
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* The current index within all of the written data.
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*/
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getAbsoluteIndex(): number;
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private stateText;
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/**
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* HTML only allows ASCII alpha characters (a-z and A-Z) at the beginning of a tag name.
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*
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* XML allows a lot more characters here (@see https://www.w3.org/TR/REC-xml/#NT-NameStartChar).
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* We allow anything that wouldn't end the tag.
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*/
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private isTagStartChar;
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private stateBeforeTagName;
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private stateInTagName;
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private stateBeforeClosingTagName;
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private stateInClosingTagName;
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private stateAfterClosingTagName;
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private stateBeforeAttributeName;
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private stateInSelfClosingTag;
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private stateInAttributeName;
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private stateAfterAttributeName;
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private stateBeforeAttributeValue;
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private handleInAttributeValue;
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private stateInAttributeValueDoubleQuotes;
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private stateInAttributeValueSingleQuotes;
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private stateInAttributeValueNoQuotes;
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private stateBeforeDeclaration;
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private stateInDeclaration;
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private stateInProcessingInstruction;
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private stateBeforeComment;
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private stateInComment;
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private stateInSpecialComment;
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private stateAfterComment1;
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private stateAfterComment2;
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private stateBeforeCdata6;
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private stateInCdata;
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private stateAfterCdata1;
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private stateAfterCdata2;
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private stateBeforeSpecialS;
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private stateBeforeSpecialSEnd;
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private stateBeforeSpecialLast;
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private stateAfterSpecialLast;
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private parseFixedEntity;
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private parseLegacyEntity;
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private stateInNamedEntity;
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private decodeNumericEntity;
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private stateInNumericEntity;
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private stateInHexEntity;
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private cleanup;
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/**
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* Iterates through the buffer, calling the function corresponding to the current state.
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*
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* States that are more likely to be hit are higher up, as a performance improvement.
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*/
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private parse;
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private finish;
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private handleTrailingData;
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private getSection;
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private emitToken;
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private emitPartial;
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}
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export {};
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//# sourceMappingURL=Tokenizer.d.ts.map
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