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+// Copyright 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023 Simon Lydell
+// License: MIT.
+var HashbangComment, Identifier, JSXIdentifier, JSXPunctuator, JSXString, JSXText, KeywordsWithExpressionAfter, KeywordsWithNoLineTerminatorAfter, LineTerminatorSequence, MultiLineComment, Newline, NumericLiteral, Punctuator, RegularExpressionLiteral, SingleLineComment, StringLiteral, Template, TokensNotPrecedingObjectLiteral, TokensPrecedingExpression, WhiteSpace, jsTokens;
+RegularExpressionLiteral = /\/(?![*\/])(?:\[(?:[^\]\\\n\r\u2028\u2029]+|\\.)*\]?|[^\/[\\\n\r\u2028\u2029]+|\\.)*(\/[$_\u200C\u200D\p{ID_Continue}]*|\\)?/yu;
+Punctuator = /--|\+\+|=>|\.{3}|\??\.(?!\d)|(?:&&|\|\||\?\?|[+\-%&|^]|\*{1,2}|<{1,2}|>{1,3}|!=?|={1,2}|\/(?![\/*]))=?|[?~,:;[\](){}]/y;
+Identifier = /(\x23?)(?=[$_\p{ID_Start}\\])(?:[$_\u200C\u200D\p{ID_Continue}]+|\\u[\da-fA-F]{4}|\\u\{[\da-fA-F]+\})+/yu;
+StringLiteral = /(['"])(?:[^'"\\\n\r]+|(?!\1)['"]|\\(?:\r\n|[^]))*(\1)?/y;
+NumericLiteral = /(?:0[xX][\da-fA-F](?:_?[\da-fA-F])*|0[oO][0-7](?:_?[0-7])*|0[bB][01](?:_?[01])*)n?|0n|[1-9](?:_?\d)*n|(?:(?:0(?!\d)|0\d*[89]\d*|[1-9](?:_?\d)*)(?:\.(?:\d(?:_?\d)*)?)?|\.\d(?:_?\d)*)(?:[eE][+-]?\d(?:_?\d)*)?|0[0-7]+/y;
+Template = /[`}](?:[^`\\$]+|\\[^]|\$(?!\{))*(`|\$\{)?/y;
+WhiteSpace = /[\t\v\f\ufeff\p{Zs}]+/yu;
+LineTerminatorSequence = /\r?\n|[\r\u2028\u2029]/y;
+MultiLineComment = /\/\*(?:[^*]+|\*(?!\/))*(\*\/)?/y;
+SingleLineComment = /\/\/.*/y;
+HashbangComment = /^#!.*/;
+JSXPunctuator = /[<>.:={}]|\/(?![\/*])/y;
+JSXIdentifier = /[$_\p{ID_Start}][$_\u200C\u200D\p{ID_Continue}-]*/yu;
+JSXString = /(['"])(?:[^'"]+|(?!\1)['"])*(\1)?/y;
+JSXText = /[^<>{}]+/y;
+TokensPrecedingExpression = /^(?:[\/+-]|\.{3}|\?(?:InterpolationIn(?:JSX|Template)|NoLineTerminatorHere|NonExpressionParenEnd|UnaryIncDec))?$|[{}([,;<>=*%&|^!~?:]$/;
+TokensNotPrecedingObjectLiteral = /^(?:=>|[;\]){}]|else|\?(?:NoLineTerminatorHere|NonExpressionParenEnd))?$/;
+KeywordsWithExpressionAfter = /^(?:await|case|default|delete|do|else|instanceof|new|return|throw|typeof|void|yield)$/;
+KeywordsWithNoLineTerminatorAfter = /^(?:return|throw|yield)$/;
+Newline = RegExp(LineTerminatorSequence.source);
+jsTokens = function*(input, {jsx = false} = {}) {
+ var braces, firstCodePoint, isExpression, lastIndex, lastSignificantToken, length, match, mode, nextLastIndex, nextLastSignificantToken, parenNesting, postfixIncDec, punctuator, stack;
+ ({length} = input);
+ lastIndex = 0;
+ lastSignificantToken = "";
+ stack = [
+ {tag: "JS"}
+ ];
+ braces = [];
+ parenNesting = 0;
+ postfixIncDec = false;
+ if (match = HashbangComment.exec(input)) {
+ yield ({
+ type: "HashbangComment",
+ value: match[0]
+ });
+ lastIndex = match[0].length;
+ }
+ while (lastIndex < length) {
+ mode = stack[stack.length - 1];
+ switch (mode.tag) {
+ case "JS":
+ case "JSNonExpressionParen":
+ case "InterpolationInTemplate":
+ case "InterpolationInJSX":
+ if (input[lastIndex] === "/" && (TokensPrecedingExpression.test(lastSignificantToken) || KeywordsWithExpressionAfter.test(lastSignificantToken))) {
+ RegularExpressionLiteral.lastIndex = lastIndex;
+ if (match = RegularExpressionLiteral.exec(input)) {
+ lastIndex = RegularExpressionLiteral.lastIndex;
+ lastSignificantToken = match[0];
+ postfixIncDec = true;
+ yield ({
+ type: "RegularExpressionLiteral",
+ value: match[0],
+ closed: match[1] !== void 0 && match[1] !== "\\"
+ });
+ continue;
+ }
+ }
+ Punctuator.lastIndex = lastIndex;
+ if (match = Punctuator.exec(input)) {
+ punctuator = match[0];
+ nextLastIndex = Punctuator.lastIndex;
+ nextLastSignificantToken = punctuator;
+ switch (punctuator) {
+ case "(":
+ if (lastSignificantToken === "?NonExpressionParenKeyword") {
+ stack.push({
+ tag: "JSNonExpressionParen",
+ nesting: parenNesting
+ });
+ }
+ parenNesting++;
+ postfixIncDec = false;
+ break;
+ case ")":
+ parenNesting--;
+ postfixIncDec = true;
+ if (mode.tag === "JSNonExpressionParen" && parenNesting === mode.nesting) {
+ stack.pop();
+ nextLastSignificantToken = "?NonExpressionParenEnd";
+ postfixIncDec = false;
+ }
+ break;
+ case "{":
+ Punctuator.lastIndex = 0;
+ isExpression = !TokensNotPrecedingObjectLiteral.test(lastSignificantToken) && (TokensPrecedingExpression.test(lastSignificantToken) || KeywordsWithExpressionAfter.test(lastSignificantToken));
+ braces.push(isExpression);
+ postfixIncDec = false;
+ break;
+ case "}":
+ switch (mode.tag) {
+ case "InterpolationInTemplate":
+ if (braces.length === mode.nesting) {
+ Template.lastIndex = lastIndex;
+ match = Template.exec(input);
+ lastIndex = Template.lastIndex;
+ lastSignificantToken = match[0];
+ if (match[1] === "${") {
+ lastSignificantToken = "?InterpolationInTemplate";
+ postfixIncDec = false;
+ yield ({
+ type: "TemplateMiddle",
+ value: match[0]
+ });
+ } else {
+ stack.pop();
+ postfixIncDec = true;
+ yield ({
+ type: "TemplateTail",
+ value: match[0],
+ closed: match[1] === "`"
+ });
+ }
+ continue;
+ }
+ break;
+ case "InterpolationInJSX":
+ if (braces.length === mode.nesting) {
+ stack.pop();
+ lastIndex += 1;
+ lastSignificantToken = "}";
+ yield ({
+ type: "JSXPunctuator",
+ value: "}"
+ });
+ continue;
+ }
+ }
+ postfixIncDec = braces.pop();
+ nextLastSignificantToken = postfixIncDec ? "?ExpressionBraceEnd" : "}";
+ break;
+ case "]":
+ postfixIncDec = true;
+ break;
+ case "++":
+ case "--":
+ nextLastSignificantToken = postfixIncDec ? "?PostfixIncDec" : "?UnaryIncDec";
+ break;
+ case "<":
+ if (jsx && (TokensPrecedingExpression.test(lastSignificantToken) || KeywordsWithExpressionAfter.test(lastSignificantToken))) {
+ stack.push({tag: "JSXTag"});
+ lastIndex += 1;
+ lastSignificantToken = "<";
+ yield ({
+ type: "JSXPunctuator",
+ value: punctuator
+ });
+ continue;
+ }
+ postfixIncDec = false;
+ break;
+ default:
+ postfixIncDec = false;
+ }
+ lastIndex = nextLastIndex;
+ lastSignificantToken = nextLastSignificantToken;
+ yield ({
+ type: "Punctuator",
+ value: punctuator
+ });
+ continue;
+ }
+ Identifier.lastIndex = lastIndex;
+ if (match = Identifier.exec(input)) {
+ lastIndex = Identifier.lastIndex;
+ nextLastSignificantToken = match[0];
+ switch (match[0]) {
+ case "for":
+ case "if":
+ case "while":
+ case "with":
+ if (lastSignificantToken !== "." && lastSignificantToken !== "?.") {
+ nextLastSignificantToken = "?NonExpressionParenKeyword";
+ }
+ }
+ lastSignificantToken = nextLastSignificantToken;
+ postfixIncDec = !KeywordsWithExpressionAfter.test(match[0]);
+ yield ({
+ type: match[1] === "#" ? "PrivateIdentifier" : "IdentifierName",
+ value: match[0]
+ });
+ continue;
+ }
+ StringLiteral.lastIndex = lastIndex;
+ if (match = StringLiteral.exec(input)) {
+ lastIndex = StringLiteral.lastIndex;
+ lastSignificantToken = match[0];
+ postfixIncDec = true;
+ yield ({
+ type: "StringLiteral",
+ value: match[0],
+ closed: match[2] !== void 0
+ });
+ continue;
+ }
+ NumericLiteral.lastIndex = lastIndex;
+ if (match = NumericLiteral.exec(input)) {
+ lastIndex = NumericLiteral.lastIndex;
+ lastSignificantToken = match[0];
+ postfixIncDec = true;
+ yield ({
+ type: "NumericLiteral",
+ value: match[0]
+ });
+ continue;
+ }
+ Template.lastIndex = lastIndex;
+ if (match = Template.exec(input)) {
+ lastIndex = Template.lastIndex;
+ lastSignificantToken = match[0];
+ if (match[1] === "${") {
+ lastSignificantToken = "?InterpolationInTemplate";
+ stack.push({
+ tag: "InterpolationInTemplate",
+ nesting: braces.length
+ });
+ postfixIncDec = false;
+ yield ({
+ type: "TemplateHead",
+ value: match[0]
+ });
+ } else {
+ postfixIncDec = true;
+ yield ({
+ type: "NoSubstitutionTemplate",
+ value: match[0],
+ closed: match[1] === "`"
+ });
+ }
+ continue;
+ }
+ break;
+ case "JSXTag":
+ case "JSXTagEnd":
+ JSXPunctuator.lastIndex = lastIndex;
+ if (match = JSXPunctuator.exec(input)) {
+ lastIndex = JSXPunctuator.lastIndex;
+ nextLastSignificantToken = match[0];
+ switch (match[0]) {
+ case "<":
+ stack.push({tag: "JSXTag"});
+ break;
+ case ">":
+ stack.pop();
+ if (lastSignificantToken === "/" || mode.tag === "JSXTagEnd") {
+ nextLastSignificantToken = "?JSX";
+ postfixIncDec = true;
+ } else {
+ stack.push({tag: "JSXChildren"});
+ }
+ break;
+ case "{":
+ stack.push({
+ tag: "InterpolationInJSX",
+ nesting: braces.length
+ });
+ nextLastSignificantToken = "?InterpolationInJSX";
+ postfixIncDec = false;
+ break;
+ case "/":
+ if (lastSignificantToken === "<") {
+ stack.pop();
+ if (stack[stack.length - 1].tag === "JSXChildren") {
+ stack.pop();
+ }
+ stack.push({tag: "JSXTagEnd"});
+ }
+ }
+ lastSignificantToken = nextLastSignificantToken;
+ yield ({
+ type: "JSXPunctuator",
+ value: match[0]
+ });
+ continue;
+ }
+ JSXIdentifier.lastIndex = lastIndex;
+ if (match = JSXIdentifier.exec(input)) {
+ lastIndex = JSXIdentifier.lastIndex;
+ lastSignificantToken = match[0];
+ yield ({
+ type: "JSXIdentifier",
+ value: match[0]
+ });
+ continue;
+ }
+ JSXString.lastIndex = lastIndex;
+ if (match = JSXString.exec(input)) {
+ lastIndex = JSXString.lastIndex;
+ lastSignificantToken = match[0];
+ yield ({
+ type: "JSXString",
+ value: match[0],
+ closed: match[2] !== void 0
+ });
+ continue;
+ }
+ break;
+ case "JSXChildren":
+ JSXText.lastIndex = lastIndex;
+ if (match = JSXText.exec(input)) {
+ lastIndex = JSXText.lastIndex;
+ lastSignificantToken = match[0];
+ yield ({
+ type: "JSXText",
+ value: match[0]
+ });
+ continue;
+ }
+ switch (input[lastIndex]) {
+ case "<":
+ stack.push({tag: "JSXTag"});
+ lastIndex++;
+ lastSignificantToken = "<";
+ yield ({
+ type: "JSXPunctuator",
+ value: "<"
+ });
+ continue;
+ case "{":
+ stack.push({
+ tag: "InterpolationInJSX",
+ nesting: braces.length
+ });
+ lastIndex++;
+ lastSignificantToken = "?InterpolationInJSX";
+ postfixIncDec = false;
+ yield ({
+ type: "JSXPunctuator",
+ value: "{"
+ });
+ continue;
+ }
+ }
+ WhiteSpace.lastIndex = lastIndex;
+ if (match = WhiteSpace.exec(input)) {
+ lastIndex = WhiteSpace.lastIndex;
+ yield ({
+ type: "WhiteSpace",
+ value: match[0]
+ });
+ continue;
+ }
+ LineTerminatorSequence.lastIndex = lastIndex;
+ if (match = LineTerminatorSequence.exec(input)) {
+ lastIndex = LineTerminatorSequence.lastIndex;
+ postfixIncDec = false;
+ if (KeywordsWithNoLineTerminatorAfter.test(lastSignificantToken)) {
+ lastSignificantToken = "?NoLineTerminatorHere";
+ }
+ yield ({
+ type: "LineTerminatorSequence",
+ value: match[0]
+ });
+ continue;
+ }
+ MultiLineComment.lastIndex = lastIndex;
+ if (match = MultiLineComment.exec(input)) {
+ lastIndex = MultiLineComment.lastIndex;
+ if (Newline.test(match[0])) {
+ postfixIncDec = false;
+ if (KeywordsWithNoLineTerminatorAfter.test(lastSignificantToken)) {
+ lastSignificantToken = "?NoLineTerminatorHere";
+ }
+ }
+ yield ({
+ type: "MultiLineComment",
+ value: match[0],
+ closed: match[1] !== void 0
+ });
+ continue;
+ }
+ SingleLineComment.lastIndex = lastIndex;
+ if (match = SingleLineComment.exec(input)) {
+ lastIndex = SingleLineComment.lastIndex;
+ postfixIncDec = false;
+ yield ({
+ type: "SingleLineComment",
+ value: match[0]
+ });
+ continue;
+ }
+ firstCodePoint = String.fromCodePoint(input.codePointAt(lastIndex));
+ lastIndex += firstCodePoint.length;
+ lastSignificantToken = firstCodePoint;
+ postfixIncDec = false;
+ yield ({
+ type: mode.tag.startsWith("JSX") ? "JSXInvalid" : "Invalid",
+ value: firstCodePoint
+ });
+ }
+ return void 0;
+};
+export default jsTokens;
+export { jsTokens as "module.exports" }; \ No newline at end of file