@cucumber/tag-expressions
Version:
Cucumber Tag Expression parser
226 lines • 24.4 kB
JavaScript
const OPERAND = 'operand';
const OPERATOR = 'operator';
const PREC = {
'(': -2,
')': -1,
or: 0,
and: 1,
not: 2,
};
const ASSOC = {
or: 'left',
and: 'left',
not: 'right',
};
/**
* Parses infix boolean expression (using Dijkstra's Shunting Yard algorithm)
* and builds a tree of expressions. The root node of the expression is returned.
*
* This expression can be evaluated by passing in an array of literals that resolve to true
*/
export function parse(infix) {
const tokens = tokenize(infix);
if (tokens.length === 0) {
return new True();
}
const expressions = [];
const operators = [];
let expectedTokenType = OPERAND;
tokens.forEach((token) => {
if (isUnary(token)) {
check(expectedTokenType, OPERAND);
operators.push(token);
expectedTokenType = OPERAND;
}
else if (isBinary(token)) {
check(expectedTokenType, OPERATOR);
while (operators.length > 0 &&
isOp(peek(operators)) &&
((ASSOC[token] === 'left' && PREC[token] <= PREC[peek(operators)]) ||
(ASSOC[token] === 'right' && PREC[token] < PREC[peek(operators)]))) {
pushExpr(operators.pop(), expressions);
}
operators.push(token);
expectedTokenType = OPERAND;
}
else if ('(' === token) {
check(expectedTokenType, OPERAND);
operators.push(token);
expectedTokenType = OPERAND;
}
else if (')' === token) {
check(expectedTokenType, OPERATOR);
while (operators.length > 0 && peek(operators) !== '(') {
pushExpr(operators.pop(), expressions);
}
if (operators.length === 0) {
throw new Error(`Tag expression "${infix}" could not be parsed because of syntax error: Unmatched ).`);
}
if (peek(operators) === '(') {
operators.pop();
}
expectedTokenType = OPERATOR;
}
else {
check(expectedTokenType, OPERAND);
pushExpr(token, expressions);
expectedTokenType = OPERATOR;
}
});
while (operators.length > 0) {
if (peek(operators) === '(') {
throw new Error(`Tag expression "${infix}" could not be parsed because of syntax error: Unmatched (.`);
}
pushExpr(operators.pop(), expressions);
}
return expressions.pop();
function check(expectedTokenType, tokenType) {
if (expectedTokenType !== tokenType) {
throw new Error(`Tag expression "${infix}" could not be parsed because of syntax error: Expected ${expectedTokenType}.`);
}
}
function pushExpr(token, stack) {
if (token === 'and') {
const rightAndExpr = popOperand(stack);
stack.push(new And(popOperand(stack), rightAndExpr));
}
else if (token === 'or') {
const rightOrExpr = popOperand(stack);
stack.push(new Or(popOperand(stack), rightOrExpr));
}
else if (token === 'not') {
stack.push(new Not(popOperand(stack)));
}
else {
stack.push(new Literal(token));
}
}
function popOperand(stack) {
if (stack.length === 0) {
throw new Error(`Tag expression "${infix}" could not be parsed because of syntax error: Expected operand.`);
}
return stack.pop();
}
}
function tokenize(expr) {
const tokens = [];
let isEscaped = false;
let token = [];
for (let i = 0; i < expr.length; i++) {
const c = expr.charAt(i);
if (isEscaped) {
if (c === '(' || c === ')' || c === '\\' || /\s/.test(c)) {
token.push(c);
isEscaped = false;
}
else {
throw new Error(`Tag expression "${expr}" could not be parsed because of syntax error: Illegal escape before "${c}".`);
}
}
else if (c === '\\') {
isEscaped = true;
}
else if (c === '(' || c === ')' || /\s/.test(c)) {
if (token.length > 0) {
tokens.push(token.join(''));
token = [];
}
if (!/\s/.test(c)) {
tokens.push(c);
}
}
else {
token.push(c);
}
}
if (token.length > 0) {
tokens.push(token.join(''));
}
return tokens;
}
function isUnary(token) {
return 'not' === token;
}
function isBinary(token) {
return 'or' === token || 'and' === token;
}
function isOp(token) {
return ASSOC[token] !== undefined;
}
function peek(stack) {
return stack[stack.length - 1];
}
class Literal {
value;
constructor(value) {
this.value = value;
}
evaluate(variables) {
return variables.indexOf(this.value) !== -1;
}
toString() {
return this.value
.replace(/\\/g, '\\\\')
.replace(/\(/g, '\\(')
.replace(/\)/g, '\\)')
.replace(/\s/g, '\\ ');
}
}
class Or {
leftExpr;
rightExpr;
constructor(leftExpr, rightExpr) {
this.leftExpr = leftExpr;
this.rightExpr = rightExpr;
}
evaluate(variables) {
return this.leftExpr.evaluate(variables) || this.rightExpr.evaluate(variables);
}
toString() {
return `( ${this.leftExpr.toString()} or ${this.rightExpr.toString()} )`;
}
}
class And {
leftExpr;
rightExpr;
constructor(leftExpr, rightExpr) {
this.leftExpr = leftExpr;
this.rightExpr = rightExpr;
}
evaluate(variables) {
return this.leftExpr.evaluate(variables) && this.rightExpr.evaluate(variables);
}
toString() {
return `( ${this.leftExpr.toString()} and ${this.rightExpr.toString()} )`;
}
}
class Not {
expr;
constructor(expr) {
this.expr = expr;
}
evaluate(variables) {
return !this.expr.evaluate(variables);
}
toString() {
if (this.expr instanceof And || this.expr instanceof Or) {
// -- HINT: Binary Operators already have already '( ... )'.
return `not ${this.expr.toString()}`;
}
// -- OTHERWISE:
return `not ( ${this.expr.toString()} )`;
}
}
class True {
evaluate(_variables) {
return true;
}
toString() {
return '';
}
}
/**
* @deprecated Use the named export `parse` instead: `import { parse } from '@cucumber/tag-expressions'`
*/
export default parse;
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"index.js","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":"AAAA,MAAM,OAAO,GAAG,SAAS,CAAA;AACzB,MAAM,QAAQ,GAAG,UAAU,CAAA;AAC3B,MAAM,IAAI,GAA8B;IACtC,GAAG,EAAE,CAAC,CAAC;IACP,GAAG,EAAE,CAAC,CAAC;IACP,EAAE,EAAE,CAAC;IACL,GAAG,EAAE,CAAC;IACN,GAAG,EAAE,CAAC;CACP,CAAA;AACD,MAAM,KAAK,GAA8B;IACvC,EAAE,EAAE,MAAM;IACV,GAAG,EAAE,MAAM;IACX,GAAG,EAAE,OAAO;CACb,CAAA;AAED;;;;;GAKG;AACH,MAAM,UAAU,KAAK,CAAC,KAAa;IACjC,MAAM,MAAM,GAAG,QAAQ,CAAC,KAAK,CAAC,CAAA;IAC9B,IAAI,MAAM,CAAC,MAAM,KAAK,CAAC,EAAE,CAAC;QACxB,OAAO,IAAI,IAAI,EAAE,CAAA;IACnB,CAAC;IACD,MAAM,WAAW,GAAW,EAAE,CAAA;IAC9B,MAAM,SAAS,GAAa,EAAE,CAAA;IAC9B,IAAI,iBAAiB,GAAG,OAAO,CAAA;IAE/B,MAAM,CAAC,OAAO,CAAC,CAAC,KAAK,EAAE,EAAE;QACvB,IAAI,OAAO,CAAC,KAAK,CAAC,EAAE,CAAC;YACnB,KAAK,CAAC,iBAAiB,EAAE,OAAO,CAAC,CAAA;YACjC,SAAS,CAAC,IAAI,CAAC,KAAK,CAAC,CAAA;YACrB,iBAAiB,GAAG,OAAO,CAAA;QAC7B,CAAC;aAAM,IAAI,QAAQ,CAAC,KAAK,CAAC,EAAE,CAAC;YAC3B,KAAK,CAAC,iBAAiB,EAAE,QAAQ,CAAC,CAAA;YAClC,OACE,SAAS,CAAC,MAAM,GAAG,CAAC;gBACpB,IAAI,CAAC,IAAI,CAAC,SAAS,CAAC,CAAC;gBACrB,CAAC,CAAC,KAAK,CAAC,KAAK,CAAC,KAAK,MAAM,IAAI,IAAI,CAAC,KAAK,CAAC,IAAI,IAAI,CAAC,IAAI,CAAC,SAAS,CAAC,CAAC,CAAC;oBAChE,CAAC,KAAK,CAAC,KAAK,CAAC,KAAK,OAAO,IAAI,IAAI,CAAC,KAAK,CAAC,GAAG,IAAI,CAAC,IAAI,CAAC,SAAS,CAAC,CAAC,CAAC,CAAC,EACpE,CAAC;gBACD,QAAQ,CAAC,SAAS,CAAC,GAAG,EAAY,EAAE,WAAW,CAAC,CAAA;YAClD,CAAC;YACD,SAAS,CAAC,IAAI,CAAC,KAAK,CAAC,CAAA;YACrB,iBAAiB,GAAG,OAAO,CAAA;QAC7B,CAAC;aAAM,IAAI,GAAG,KAAK,KAAK,EAAE,CAAC;YACzB,KAAK,CAAC,iBAAiB,EAAE,OAAO,CAAC,CAAA;YACjC,SAAS,CAAC,IAAI,CAAC,KAAK,CAAC,CAAA;YACrB,iBAAiB,GAAG,OAAO,CAAA;QAC7B,CAAC;aAAM,IAAI,GAAG,KAAK,KAAK,EAAE,CAAC;YACzB,KAAK,CAAC,iBAAiB,EAAE,QAAQ,CAAC,CAAA;YAClC,OAAO,SAAS,CAAC,MAAM,GAAG,CAAC,IAAI,IAAI,CAAC,SAAS,CAAC,KAAK,GAAG,EAAE,CAAC;gBACvD,QAAQ,CAAC,SAAS,CAAC,GAAG,EAAY,EAAE,WAAW,CAAC,CAAA;YAClD,CAAC;YACD,IAAI,SAAS,CAAC,MAAM,KAAK,CAAC,EAAE,CAAC;gBAC3B,MAAM,IAAI,KAAK,CACb,mBAAmB,KAAK,6DAA6D,CACtF,CAAA;YACH,CAAC;YACD,IAAI,IAAI,CAAC,SAAS,CAAC,KAAK,GAAG,EAAE,CAAC;gBAC5B,SAAS,CAAC,GAAG,EAAE,CAAA;YACjB,CAAC;YACD,iBAAiB,GAAG,QAAQ,CAAA;QAC9B,CAAC;aAAM,CAAC;YACN,KAAK,CAAC,iBAAiB,EAAE,OAAO,CAAC,CAAA;YACjC,QAAQ,CAAC,KAAK,EAAE,WAAW,CAAC,CAAA;YAC5B,iBAAiB,GAAG,QAAQ,CAAA;QAC9B,CAAC;IACH,CAAC,CAAC,CAAA;IAEF,OAAO,SAAS,CAAC,MAAM,GAAG,CAAC,EAAE,CAAC;QAC5B,IAAI,IAAI,CAAC,SAAS,CAAC,KAAK,GAAG,EAAE,CAAC;YAC5B,MAAM,IAAI,KAAK,CACb,mBAAmB,KAAK,6DAA6D,CACtF,CAAA;QACH,CAAC;QACD,QAAQ,CAAC,SAAS,CAAC,GAAG,EAAY,EAAE,WAAW,CAAC,CAAA;IAClD,CAAC;IAED,OAAO,WAAW,CAAC,GAAG,EAAU,CAAA;IAEhC,SAAS,KAAK,CAAC,iBAAyB,EAAE,SAAiB;QACzD,IAAI,iBAAiB,KAAK,SAAS,EAAE,CAAC;YACpC,MAAM,IAAI,KAAK,CACb,mBAAmB,KAAK,2DAA2D,iBAAiB,GAAG,CACxG,CAAA;QACH,CAAC;IACH,CAAC;IAED,SAAS,QAAQ,CAAC,KAAa,EAAE,KAAa;QAC5C,IAAI,KAAK,KAAK,KAAK,EAAE,CAAC;YACpB,MAAM,YAAY,GAAG,UAAU,CAAC,KAAK,CAAC,CAAA;YACtC,KAAK,CAAC,IAAI,CAAC,IAAI,GAAG,CAAC,UAAU,CAAC,KAAK,CAAC,EAAE,YAAY,CAAC,CAAC,CAAA;QACtD,CAAC;aAAM,IAAI,KAAK,KAAK,IAAI,EAAE,CAAC;YAC1B,MAAM,WAAW,GAAG,UAAU,CAAC,KAAK,CAAC,CAAA;YACrC,KAAK,CAAC,IAAI,CAAC,IAAI,EAAE,CAAC,UAAU,CAAC,KAAK,CAAC,EAAE,WAAW,CAAC,CAAC,CAAA;QACpD,CAAC;aAAM,IAAI,KAAK,KAAK,KAAK,EAAE,CAAC;YAC3B,KAAK,CAAC,IAAI,CAAC,IAAI,GAAG,CAAC,UAAU,CAAC,KAAK,CAAC,CAAC,CAAC,CAAA;QACxC,CAAC;aAAM,CAAC;YACN,KAAK,CAAC,IAAI,CAAC,IAAI,OAAO,CAAC,KAAK,CAAC,CAAC,CAAA;QAChC,CAAC;IACH,CAAC;IAED,SAAS,UAAU,CAAI,KAAU;QAC/B,IAAI,KAAK,CAAC,MAAM,KAAK,CAAC,EAAE,CAAC;YACvB,MAAM,IAAI,KAAK,CACb,mBAAmB,KAAK,kEAAkE,CAC3F,CAAA;QACH,CAAC;QACD,OAAO,KAAK,CAAC,GAAG,EAAO,CAAA;IACzB,CAAC;AACH,CAAC;AAED,SAAS,QAAQ,CAAC,IAAY;IAC5B,MAAM,MAAM,GAAG,EAAE,CAAA;IACjB,IAAI,SAAS,GAAG,KAAK,CAAA;IACrB,IAAI,KAAK,GAAa,EAAE,CAAA;IACxB,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,IAAI,CAAC,MAAM,EAAE,CAAC,EAAE,EAAE,CAAC;QACrC,MAAM,CAAC,GAAG,IAAI,CAAC,MAAM,CAAC,CAAC,CAAC,CAAA;QACxB,IAAI,SAAS,EAAE,CAAC;YACd,IAAI,CAAC,KAAK,GAAG,IAAI,CAAC,KAAK,GAAG,IAAI,CAAC,KAAK,IAAI,IAAI,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC;gBACzD,KAAK,CAAC,IAAI,CAAC,CAAC,CAAC,CAAA;gBACb,SAAS,GAAG,KAAK,CAAA;YACnB,CAAC;iBAAM,CAAC;gBACN,MAAM,IAAI,KAAK,CACb,mBAAmB,IAAI,yEAAyE,CAAC,IAAI,CACtG,CAAA;YACH,CAAC;QACH,CAAC;aAAM,IAAI,CAAC,KAAK,IAAI,EAAE,CAAC;YACtB,SAAS,GAAG,IAAI,CAAA;QAClB,CAAC;aAAM,IAAI,CAAC,KAAK,GAAG,IAAI,CAAC,KAAK,GAAG,IAAI,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC;YAClD,IAAI,KAAK,CAAC,MAAM,GAAG,CAAC,EAAE,CAAC;gBACrB,MAAM,CAAC,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,EAAE,CAAC,CAAC,CAAA;gBAC3B,KAAK,GAAG,EAAE,CAAA;YACZ,CAAC;YACD,IAAI,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC;gBAClB,MAAM,CAAC,IAAI,CAAC,CAAC,CAAC,CAAA;YAChB,CAAC;QACH,CAAC;aAAM,CAAC;YACN,KAAK,CAAC,IAAI,CAAC,CAAC,CAAC,CAAA;QACf,CAAC;IACH,CAAC;IACD,IAAI,KAAK,CAAC,MAAM,GAAG,CAAC,EAAE,CAAC;QACrB,MAAM,CAAC,IAAI,CAAC,KAAK,CAAC,IAAI,CAAC,EAAE,CAAC,CAAC,CAAA;IAC7B,CAAC;IACD,OAAO,MAAM,CAAA;AACf,CAAC;AAED,SAAS,OAAO,CAAC,KAAa;IAC5B,OAAO,KAAK,KAAK,KAAK,CAAA;AACxB,CAAC;AAED,SAAS,QAAQ,CAAC,KAAa;IAC7B,OAAO,IAAI,KAAK,KAAK,IAAI,KAAK,KAAK,KAAK,CAAA;AAC1C,CAAC;AAED,SAAS,IAAI,CAAC,KAAa;IACzB,OAAO,KAAK,CAAC,KAAK,CAAC,KAAK,SAAS,CAAA;AACnC,CAAC;AAED,SAAS,IAAI,CAAC,KAAe;IAC3B,OAAO,KAAK,CAAC,KAAK,CAAC,MAAM,GAAG,CAAC,CAAC,CAAA;AAChC,CAAC;AAMD,MAAM,OAAO;IACkB;IAA7B,YAA6B,KAAa;QAAb,UAAK,GAAL,KAAK,CAAQ;IAAG,CAAC;IAEvC,QAAQ,CAAC,SAAmB;QACjC,OAAO,SAAS,CAAC,OAAO,CAAC,IAAI,CAAC,KAAK,CAAC,KAAK,CAAC,CAAC,CAAA;IAC7C,CAAC;IAEM,QAAQ;QACb,OAAO,IAAI,CAAC,KAAK;aACd,OAAO,CAAC,KAAK,EAAE,MAAM,CAAC;aACtB,OAAO,CAAC,KAAK,EAAE,KAAK,CAAC;aACrB,OAAO,CAAC,KAAK,EAAE,KAAK,CAAC;aACrB,OAAO,CAAC,KAAK,EAAE,KAAK,CAAC,CAAA;IAC1B,CAAC;CACF;AAED,MAAM,EAAE;IAEa;IACA;IAFnB,YACmB,QAAc,EACd,SAAe;QADf,aAAQ,GAAR,QAAQ,CAAM;QACd,cAAS,GAAT,SAAS,CAAM;IAC/B,CAAC;IAEG,QAAQ,CAAC,SAAmB;QACjC,OAAO,IAAI,CAAC,QAAQ,CAAC,QAAQ,CAAC,SAAS,CAAC,IAAI,IAAI,CAAC,SAAS,CAAC,QAAQ,CAAC,SAAS,CAAC,CAAA;IAChF,CAAC;IAEM,QAAQ;QACb,OAAO,KAAK,IAAI,CAAC,QAAQ,CAAC,QAAQ,EAAE,OAAO,IAAI,CAAC,SAAS,CAAC,QAAQ,EAAE,IAAI,CAAA;IAC1E,CAAC;CACF;AAED,MAAM,GAAG;IAEY;IACA;IAFnB,YACmB,QAAc,EACd,SAAe;QADf,aAAQ,GAAR,QAAQ,CAAM;QACd,cAAS,GAAT,SAAS,CAAM;IAC/B,CAAC;IAEG,QAAQ,CAAC,SAAmB;QACjC,OAAO,IAAI,CAAC,QAAQ,CAAC,QAAQ,CAAC,SAAS,CAAC,IAAI,IAAI,CAAC,SAAS,CAAC,QAAQ,CAAC,SAAS,CAAC,CAAA;IAChF,CAAC;IAEM,QAAQ;QACb,OAAO,KAAK,IAAI,CAAC,QAAQ,CAAC,QAAQ,EAAE,QAAQ,IAAI,CAAC,SAAS,CAAC,QAAQ,EAAE,IAAI,CAAA;IAC3E,CAAC;CACF;AAED,MAAM,GAAG;IACsB;IAA7B,YAA6B,IAAU;QAAV,SAAI,GAAJ,IAAI,CAAM;IAAG,CAAC;IAEpC,QAAQ,CAAC,SAAmB;QACjC,OAAO,CAAC,IAAI,CAAC,IAAI,CAAC,QAAQ,CAAC,SAAS,CAAC,CAAA;IACvC,CAAC;IAEM,QAAQ;QACb,IAAI,IAAI,CAAC,IAAI,YAAY,GAAG,IAAI,IAAI,CAAC,IAAI,YAAY,EAAE,EAAE,CAAC;YACxD,4DAA4D;YAC5D,OAAO,OAAO,IAAI,CAAC,IAAI,CAAC,QAAQ,EAAE,EAAE,CAAA;QACtC,CAAC;QACD,gBAAgB;QAChB,OAAO,SAAS,IAAI,CAAC,IAAI,CAAC,QAAQ,EAAE,IAAI,CAAA;IAC1C,CAAC;CACF;AAED,MAAM,IAAI;IACD,QAAQ,CAAC,UAAoB;QAClC,OAAO,IAAI,CAAA;IACb,CAAC;IAEM,QAAQ;QACb,OAAO,EAAE,CAAA;IACX,CAAC;CACF;AAED;;GAEG;AACH,eAAe,KAAK,CAAA","sourcesContent":["const OPERAND = 'operand'\nconst OPERATOR = 'operator'\nconst PREC: { [key: string]: number } = {\n  '(': -2,\n  ')': -1,\n  or: 0,\n  and: 1,\n  not: 2,\n}\nconst ASSOC: { [key: string]: string } = {\n  or: 'left',\n  and: 'left',\n  not: 'right',\n}\n\n/**\n * Parses infix boolean expression (using Dijkstra's Shunting Yard algorithm)\n * and builds a tree of expressions. The root node of the expression is returned.\n *\n * This expression can be evaluated by passing in an array of literals that resolve to true\n */\nexport function parse(infix: string): Node {\n  const tokens = tokenize(infix)\n  if (tokens.length === 0) {\n    return new True()\n  }\n  const expressions: Node[] = []\n  const operators: string[] = []\n  let expectedTokenType = OPERAND\n\n  tokens.forEach((token) => {\n    if (isUnary(token)) {\n      check(expectedTokenType, OPERAND)\n      operators.push(token)\n      expectedTokenType = OPERAND\n    } else if (isBinary(token)) {\n      check(expectedTokenType, OPERATOR)\n      while (\n        operators.length > 0 &&\n        isOp(peek(operators)) &&\n        ((ASSOC[token] === 'left' && PREC[token] <= PREC[peek(operators)]) ||\n          (ASSOC[token] === 'right' && PREC[token] < PREC[peek(operators)]))\n      ) {\n        pushExpr(operators.pop() as string, expressions)\n      }\n      operators.push(token)\n      expectedTokenType = OPERAND\n    } else if ('(' === token) {\n      check(expectedTokenType, OPERAND)\n      operators.push(token)\n      expectedTokenType = OPERAND\n    } else if (')' === token) {\n      check(expectedTokenType, OPERATOR)\n      while (operators.length > 0 && peek(operators) !== '(') {\n        pushExpr(operators.pop() as string, expressions)\n      }\n      if (operators.length === 0) {\n        throw new Error(\n          `Tag expression \"${infix}\" could not be parsed because of syntax error: Unmatched ).`\n        )\n      }\n      if (peek(operators) === '(') {\n        operators.pop()\n      }\n      expectedTokenType = OPERATOR\n    } else {\n      check(expectedTokenType, OPERAND)\n      pushExpr(token, expressions)\n      expectedTokenType = OPERATOR\n    }\n  })\n\n  while (operators.length > 0) {\n    if (peek(operators) === '(') {\n      throw new Error(\n        `Tag expression \"${infix}\" could not be parsed because of syntax error: Unmatched (.`\n      )\n    }\n    pushExpr(operators.pop() as string, expressions)\n  }\n\n  return expressions.pop() as Node\n\n  function check(expectedTokenType: string, tokenType: string) {\n    if (expectedTokenType !== tokenType) {\n      throw new Error(\n        `Tag expression \"${infix}\" could not be parsed because of syntax error: Expected ${expectedTokenType}.`\n      )\n    }\n  }\n\n  function pushExpr(token: string, stack: Node[]) {\n    if (token === 'and') {\n      const rightAndExpr = popOperand(stack)\n      stack.push(new And(popOperand(stack), rightAndExpr))\n    } else if (token === 'or') {\n      const rightOrExpr = popOperand(stack)\n      stack.push(new Or(popOperand(stack), rightOrExpr))\n    } else if (token === 'not') {\n      stack.push(new Not(popOperand(stack)))\n    } else {\n      stack.push(new Literal(token))\n    }\n  }\n\n  function popOperand<T>(stack: T[]): T {\n    if (stack.length === 0) {\n      throw new Error(\n        `Tag expression \"${infix}\" could not be parsed because of syntax error: Expected operand.`\n      )\n    }\n    return stack.pop() as T\n  }\n}\n\nfunction tokenize(expr: string): string[] {\n  const tokens = []\n  let isEscaped = false\n  let token: string[] = []\n  for (let i = 0; i < expr.length; i++) {\n    const c = expr.charAt(i)\n    if (isEscaped) {\n      if (c === '(' || c === ')' || c === '\\\\' || /\\s/.test(c)) {\n        token.push(c)\n        isEscaped = false\n      } else {\n        throw new Error(\n          `Tag expression \"${expr}\" could not be parsed because of syntax error: Illegal escape before \"${c}\".`\n        )\n      }\n    } else if (c === '\\\\') {\n      isEscaped = true\n    } else if (c === '(' || c === ')' || /\\s/.test(c)) {\n      if (token.length > 0) {\n        tokens.push(token.join(''))\n        token = []\n      }\n      if (!/\\s/.test(c)) {\n        tokens.push(c)\n      }\n    } else {\n      token.push(c)\n    }\n  }\n  if (token.length > 0) {\n    tokens.push(token.join(''))\n  }\n  return tokens\n}\n\nfunction isUnary(token: string) {\n  return 'not' === token\n}\n\nfunction isBinary(token: string) {\n  return 'or' === token || 'and' === token\n}\n\nfunction isOp(token: string) {\n  return ASSOC[token] !== undefined\n}\n\nfunction peek(stack: string[]) {\n  return stack[stack.length - 1]\n}\n\nexport interface Node {\n  evaluate(variables: string[]): boolean\n}\n\nclass Literal implements Node {\n  constructor(private readonly value: string) {}\n\n  public evaluate(variables: string[]) {\n    return variables.indexOf(this.value) !== -1\n  }\n\n  public toString() {\n    return this.value\n      .replace(/\\\\/g, '\\\\\\\\')\n      .replace(/\\(/g, '\\\\(')\n      .replace(/\\)/g, '\\\\)')\n      .replace(/\\s/g, '\\\\ ')\n  }\n}\n\nclass Or implements Node {\n  constructor(\n    private readonly leftExpr: Node,\n    private readonly rightExpr: Node\n  ) {}\n\n  public evaluate(variables: string[]) {\n    return this.leftExpr.evaluate(variables) || this.rightExpr.evaluate(variables)\n  }\n\n  public toString() {\n    return `( ${this.leftExpr.toString()} or ${this.rightExpr.toString()} )`\n  }\n}\n\nclass And implements Node {\n  constructor(\n    private readonly leftExpr: Node,\n    private readonly rightExpr: Node\n  ) {}\n\n  public evaluate(variables: string[]) {\n    return this.leftExpr.evaluate(variables) && this.rightExpr.evaluate(variables)\n  }\n\n  public toString() {\n    return `( ${this.leftExpr.toString()} and ${this.rightExpr.toString()} )`\n  }\n}\n\nclass Not implements Node {\n  constructor(private readonly expr: Node) {}\n\n  public evaluate(variables: string[]) {\n    return !this.expr.evaluate(variables)\n  }\n\n  public toString() {\n    if (this.expr instanceof And || this.expr instanceof Or) {\n      // -- HINT: Binary Operators already have already '( ... )'.\n      return `not ${this.expr.toString()}`\n    }\n    // -- OTHERWISE:\n    return `not ( ${this.expr.toString()} )`\n  }\n}\n\nclass True implements Node {\n  public evaluate(_variables: string[]) {\n    return true\n  }\n\n  public toString() {\n    return ''\n  }\n}\n\n/**\n * @deprecated Use the named export `parse` instead: `import { parse } from '@cucumber/tag-expressions'`\n */\nexport default parse\n"]}