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css-tokenizer: improve ParseError (#1420)
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lines changed

‎packages/css-tokenizer/CHANGELOG.md

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# Changes to CSS Tokenizer
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### Unreleased (minor)
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- Expose `ParseErrorMessage`, the list of known parser error messages object to facilitate detection of specific cases
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- Add a specific `ParseErrorWithToken` subclass. This contains the associated token.
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### 2.3.3
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_July 3, 2024_

‎packages/css-tokenizer/dist/index.cjs

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‎packages/css-tokenizer/dist/index.d.ts

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@@ -212,9 +212,28 @@ export declare class ParseError extends Error {
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sourceEnd: number;
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/** The parser steps that preceded the error. */
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parserState: Array<string>;
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/** The associated AST node. */
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astNode?: unknown;
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constructor(message: string, sourceStart: number, sourceEnd: number, parserState: Array<string>);
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}
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export declare const ParseErrorMessage: {
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UnexpectedNewLineInString: string;
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UnexpectedEOFInString: string;
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UnexpectedEOFInComment: string;
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UnexpectedEOFInURL: string;
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UnexpectedEOFInEscapedCodePoint: string;
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UnexpectedCharacterInURL: string;
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InvalidEscapeSequenceInURL: string;
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InvalidEscapeSequenceAfterBackslash: string;
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};
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export declare class ParseErrorWithToken extends ParseError {
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/** The associated token. */
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token: CSSToken;
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constructor(message: string, sourceStart: number, sourceEnd: number, parserState: Array<string>, token: CSSToken);
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}
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/**
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* @internal
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*/

‎packages/css-tokenizer/dist/index.mjs

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‎packages/css-tokenizer/docs/css-tokenizer.api.json

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}
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]
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},
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{
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"kind": "Property",
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"canonicalReference": "@csstools/css-tokenizer!ParseError#astNode:member",
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"docComment": "/**\n * The associated AST node.\n */\n",
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"excerptTokens": [
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{
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"kind": "Content",
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"text": "astNode?: "
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},
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{
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"kind": "Content",
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"text": "unknown"
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},
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{
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"kind": "Content",
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"text": ";"
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}
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],
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"isReadonly": false,
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"isOptional": true,
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"releaseTag": "Public",
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"name": "astNode",
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"propertyTypeTokenRange": {
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"startIndex": 1,
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"endIndex": 2
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},
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"isStatic": false,
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"isProtected": false,
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"isAbstract": false
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},
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{
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"kind": "Property",
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"canonicalReference": "@csstools/css-tokenizer!ParseError#parserState:member",
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},
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"implementsTokenRanges": []
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},
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{
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"kind": "Variable",
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"canonicalReference": "@csstools/css-tokenizer!ParseErrorMessage:var",
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"docComment": "",
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"excerptTokens": [
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{
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"kind": "Content",
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"text": "ParseErrorMessage: "
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},
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{
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"kind": "Content",
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"text": "{\n UnexpectedNewLineInString: string;\n UnexpectedEOFInString: string;\n UnexpectedEOFInComment: string;\n UnexpectedEOFInURL: string;\n UnexpectedEOFInEscapedCodePoint: string;\n UnexpectedCharacterInURL: string;\n InvalidEscapeSequenceInURL: string;\n InvalidEscapeSequenceAfterBackslash: string;\n}"
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}
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],
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"fileUrlPath": "dist/_types/interfaces/error.d.ts",
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"isReadonly": true,
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"releaseTag": "Public",
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"name": "ParseErrorMessage",
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"variableTypeTokenRange": {
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"startIndex": 1,
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"endIndex": 2
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}
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},
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{
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"kind": "Class",
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"canonicalReference": "@csstools/css-tokenizer!ParseErrorWithToken:class",
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"docComment": "",
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"excerptTokens": [
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{
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"kind": "Content",
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"text": "export declare class ParseErrorWithToken extends "
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},
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{
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"kind": "Reference",
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"text": "ParseError",
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"canonicalReference": "@csstools/css-tokenizer!ParseError:class"
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},
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{
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"kind": "Content",
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"text": " "
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}
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],
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"fileUrlPath": "dist/_types/interfaces/error.d.ts",
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"releaseTag": "Public",
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"isAbstract": false,
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"name": "ParseErrorWithToken",
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"preserveMemberOrder": false,
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"members": [
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{
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"kind": "Constructor",
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"canonicalReference": "@csstools/css-tokenizer!ParseErrorWithToken:constructor(1)",
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"docComment": "/**\n * Constructs a new instance of the `ParseErrorWithToken` class\n */\n",
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"excerptTokens": [
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{
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"kind": "Content",
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"text": "constructor(message: "
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},
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{
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"kind": "Content",
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"text": "string"
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},
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{
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"kind": "Content",
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"text": ", sourceStart: "
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},
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{
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"kind": "Content",
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"text": "number"
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},
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{
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"kind": "Content",
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"text": ", sourceEnd: "
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},
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{
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"kind": "Content",
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"text": "number"
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},
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{
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"kind": "Content",
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"text": ", parserState: "
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},
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{
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"kind": "Reference",
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"text": "Array",
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"canonicalReference": "!Array:interface"
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},
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{
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"kind": "Content",
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"text": "<string>"
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},
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{
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"kind": "Content",
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"text": ", token: "
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},
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{
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"kind": "Reference",
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"text": "CSSToken",
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"canonicalReference": "@csstools/css-tokenizer!CSSToken:type"
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},
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{
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"kind": "Content",
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"text": ");"
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}
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],
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"releaseTag": "Public",
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"isProtected": false,
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"overloadIndex": 1,
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"parameters": [
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{
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"parameterName": "message",
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"parameterTypeTokenRange": {
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"startIndex": 1,
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"endIndex": 2
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},
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"isOptional": false
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},
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{
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"parameterName": "sourceStart",
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"parameterTypeTokenRange": {
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"startIndex": 3,
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"endIndex": 4
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},
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"isOptional": false
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},
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{
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"parameterName": "sourceEnd",
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"parameterTypeTokenRange": {
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"startIndex": 5,
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"endIndex": 6
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},
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"isOptional": false
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},
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{
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"parameterName": "parserState",
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"parameterTypeTokenRange": {
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"startIndex": 7,
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"endIndex": 9
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},
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"isOptional": false
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},
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{
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"parameterName": "token",
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"parameterTypeTokenRange": {
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"startIndex": 10,
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"endIndex": 11
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},
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"isOptional": false
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}
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]
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},
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{
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"kind": "Property",
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"canonicalReference": "@csstools/css-tokenizer!ParseErrorWithToken#token:member",
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"docComment": "/**\n * The associated token.\n */\n",
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"excerptTokens": [
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{
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"kind": "Content",
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"text": "token: "
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},
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{
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"kind": "Reference",
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"text": "CSSToken",
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"canonicalReference": "@csstools/css-tokenizer!CSSToken:type"
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},
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{
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"kind": "Content",
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"text": ";"
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}
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],
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"isReadonly": false,
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"isOptional": false,
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"releaseTag": "Public",
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"name": "token",
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"propertyTypeTokenRange": {
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"startIndex": 1,
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"endIndex": 2
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},
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"isStatic": false,
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"isProtected": false,
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"isAbstract": false
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}
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],
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"extendsTokenRange": {
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"startIndex": 1,
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"endIndex": 2
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},
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"implementsTokenRanges": []
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},
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{
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"kind": "Function",
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"canonicalReference": "@csstools/css-tokenizer!stringify:function(1)",

‎packages/css-tokenizer/docs/css-tokenizer.md

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The CSS Tokenizer is forgiving and will never throw on invalid input. Any errors are reported through the `onParseError` callback.
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</td></tr>
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<tr><td>
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[ParseErrorWithToken](./css-tokenizer.parseerrorwithtoken.md)
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</td><td>
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</td></tr>
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</tbody></table>
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</td><td>
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</td></tr>
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</tbody></table>
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## Variables
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<table><thead><tr><th>
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Variable
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</th><th>
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Description
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</th></tr></thead>
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<tbody><tr><td>
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[ParseErrorMessage](./css-tokenizer.parseerrormessage.md)
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</td><td>
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</td></tr>
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</tbody></table>
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‎packages/css-tokenizer/docs/css-tokenizer.parseerror.astnode.md

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<!-- Do not edit this file. It is automatically generated by API Documenter. -->
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[Home](./index.md) &gt; [@csstools/css-tokenizer](./css-tokenizer.md) &gt; [ParseError](./css-tokenizer.parseerror.md) &gt; [astNode](./css-tokenizer.parseerror.astnode.md)
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## ParseError.astNode property
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The associated AST node.
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**Signature:**
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```typescript
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astNode?: unknown;
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```

‎packages/css-tokenizer/docs/css-tokenizer.parseerror.md

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</th></tr></thead>
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<tbody><tr><td>
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[astNode?](./css-tokenizer.parseerror.astnode.md)
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</td><td>
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</td><td>
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unknown
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</td><td>
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_(Optional)_ The associated AST node.
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</td></tr>
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<tr><td>
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[parserState](./css-tokenizer.parseerror.parserstate.md)
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‎packages/css-tokenizer/docs/css-tokenizer.parseerrormessage.md

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<!-- Do not edit this file. It is automatically generated by API Documenter. -->
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[Home](./index.md) &gt; [@csstools/css-tokenizer](./css-tokenizer.md) &gt; [ParseErrorMessage](./css-tokenizer.parseerrormessage.md)
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## ParseErrorMessage variable
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**Signature:**
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```typescript
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ParseErrorMessage: {
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UnexpectedNewLineInString: string;
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UnexpectedEOFInString: string;
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UnexpectedEOFInComment: string;
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UnexpectedEOFInURL: string;
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UnexpectedEOFInEscapedCodePoint: string;
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UnexpectedCharacterInURL: string;
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InvalidEscapeSequenceInURL: string;
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InvalidEscapeSequenceAfterBackslash: string;
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}
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```

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