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-rw-r--r--node_modules/sift/src/index.js554
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diff --git a/node_modules/sift/src/index.js b/node_modules/sift/src/index.js
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--- a/node_modules/sift/src/index.js
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-/*
- *
- * Copryright 2018, Craig Condon
- * Licensed under MIT
- *
- * Filter JavaScript objects with mongodb queries
- */
-
-/**
- */
-
-function isFunction(value) {
- return typeof value === 'function';
-}
-
-/**
- */
-
-function isArray(value) {
- return Object.prototype.toString.call(value) === '[object Array]';
-}
-
-/**
- */
-
-function comparable(value) {
- if (value instanceof Date) {
- return value.getTime();
- } else if (isArray(value)) {
- return value.map(comparable);
- } else if (value && typeof value.toJSON === 'function') {
- return value.toJSON();
- } else {
- return value;
- }
-}
-
-function get(obj, key) {
- return isFunction(obj.get) ? obj.get(key) : obj[key];
-}
-
-/**
- */
-
-function or(validator) {
- return function(a, b) {
- if (!isArray(b) || !b.length) {
- return validator(a, b);
- }
- for (var i = 0, n = b.length; i < n; i++) {
- if (validator(a, get(b,i))) return true;
- }
- return false;
- }
-}
-
-/**
- */
-
-function and(validator) {
- return function(a, b) {
- if (!isArray(b) || !b.length) {
- return validator(a, b);
- }
- for (var i = 0, n = b.length; i < n; i++) {
- if (!validator(a, get(b, i))) return false;
- }
- return true;
- };
-}
-
-function validate(validator, b, k, o) {
- return validator.v(validator.a, b, k, o);
-}
-
-var OPERATORS = {
-
- /**
- */
-
- $eq: or(function(a, b) {
- return a(b);
- }),
-
- /**
- */
-
- $ne: and(function(a, b) {
- return !a(b);
- }),
-
- /**
- */
-
- $gt: or(function(a, b) {
- return compare(comparable(b), a) > 0;
- }),
-
- /**
- */
-
- $gte: or(function(a, b) {
- return compare(comparable(b), a) >= 0;
- }),
-
- /**
- */
-
- $lt: or(function(a, b) {
- return compare(comparable(b), a) < 0;
- }),
-
- /**
- */
-
- $lte: or(function(a, b) {
- return compare(comparable(b), a) <= 0;
- }),
-
- /**
- */
-
- $mod: or(function(a, b) {
- return b % a[0] == a[1];
- }),
-
- /**
- */
-
- $in: function(a, b) {
-
- if (b instanceof Array) {
- for (var i = b.length; i--;) {
- if (~a.indexOf(comparable(get(b, i)))) {
- return true;
- }
- }
- } else {
- var comparableB = comparable(b);
- if (comparableB === b && typeof b === 'object') {
- for (var i = a.length; i--;) {
- if (String(a[i]) === String(b) && String(b) !== '[object Object]') {
- return true;
- }
- }
- }
-
- /*
- Handles documents that are undefined, whilst also
- having a 'null' element in the parameters to $in.
- */
- if (typeof comparableB == 'undefined') {
- for (var i = a.length; i--;) {
- if (a[i] == null) {
- return true;
- }
- }
- }
-
- /*
- Handles the case of {'field': {$in: [/regexp1/, /regexp2/, ...]}}
- */
- for (var i = a.length; i--;) {
- var validator = createRootValidator(get(a, i), undefined);
- var result = validate(validator, b, i, a);
- if ((result) && (String(result) !== '[object Object]') && (String(b) !== '[object Object]')) {
- return true;
- }
- }
-
- return !!~a.indexOf(comparableB);
- }
-
- return false;
- },
-
- /**
- */
-
- $nin: function(a, b, k, o) {
- return !OPERATORS.$in(a, b, k, o);
- },
-
- /**
- */
-
- $not: function(a, b, k, o) {
- return !validate(a, b, k, o);
- },
-
- /**
- */
-
- $type: function(a, b) {
- return b != void 0 ? b instanceof a || b.constructor == a : false;
- },
-
- /**
- */
-
- $all: function(a, b, k, o) {
- return OPERATORS.$and(a, b, k, o);
- },
-
- /**
- */
-
- $size: function(a, b) {
- return b ? a === b.length : false;
- },
-
- /**
- */
-
- $or: function(a, b, k, o) {
- for (var i = 0, n = a.length; i < n; i++) if (validate(get(a, i), b, k, o)) return true;
- return false;
- },
-
- /**
- */
-
- $nor: function(a, b, k, o) {
- return !OPERATORS.$or(a, b, k, o);
- },
-
- /**
- */
-
- $and: function(a, b, k, o) {
- for (var i = 0, n = a.length; i < n; i++) {
- if (!validate(get(a, i), b, k, o)) {
- return false;
- }
- }
- return true;
- },
-
- /**
- */
-
- $regex: or(function(a, b) {
- return typeof b === 'string' && a.test(b);
- }),
-
- /**
- */
-
- $where: function(a, b, k, o) {
- return a.call(b, b, k, o);
- },
-
- /**
- */
-
- $elemMatch: function(a, b, k, o) {
- if (isArray(b)) {
- return !!~search(b, a);
- }
- return validate(a, b, k, o);
- },
-
- /**
- */
-
- $exists: function(a, b, k, o) {
- return o.hasOwnProperty(k) === a;
- }
-};
-
-/**
- */
-
-var prepare = {
-
- /**
- */
-
- $eq: function(a) {
-
- if (a instanceof RegExp) {
- return function(b) {
- return typeof b === 'string' && a.test(b);
- };
- } else if (a instanceof Function) {
- return a;
- } else if (isArray(a) && !a.length) {
- // Special case of a == []
- return function(b) {
- return (isArray(b) && !b.length);
- };
- } else if (a === null){
- return function(b){
- //will match both null and undefined
- return b == null;
- }
- }
-
- return function(b) {
- return compare(comparable(b), comparable(a)) === 0;
- };
- },
-
- /**
- */
-
- $ne: function(a) {
- return prepare.$eq(a);
- },
-
- /**
- */
-
- $and: function(a) {
- return a.map(parse);
- },
-
- /**
- */
-
- $all: function(a) {
- return prepare.$and(a);
- },
-
- /**
- */
-
- $or: function(a) {
- return a.map(parse);
- },
-
- /**
- */
-
- $nor: function(a) {
- return a.map(parse);
- },
-
- /**
- */
-
- $not: function(a) {
- return parse(a);
- },
-
- /**
- */
-
- $regex: function(a, query) {
- return new RegExp(a, query.$options);
- },
-
- /**
- */
-
- $where: function(a) {
- return typeof a === 'string' ? new Function('obj', 'return ' + a) : a;
- },
-
- /**
- */
-
- $elemMatch: function(a) {
- return parse(a);
- },
-
- /**
- */
-
- $exists: function(a) {
- return !!a;
- }
-};
-
-/**
- */
-
-function search(array, validator) {
-
- for (var i = 0; i < array.length; i++) {
- var result = get(array, i);
- if (validate(validator, get(array, i))) {
- return i;
- }
- }
-
- return -1;
-}
-
-/**
- */
-
-function createValidator(a, validate) {
- return { a: a, v: validate };
-}
-
-/**
- */
-
-function nestedValidator(a, b) {
- var values = [];
- findValues(b, a.k, 0, b, values);
-
- if (values.length === 1) {
- var first = values[0];
- return validate(a.nv, first[0], first[1], first[2]);
- }
-
- // If the query contains $ne, need to test all elements ANDed together
- var inclusive = a && a.q && typeof a.q.$ne !== 'undefined';
- var allValid = inclusive;
- for (var i = 0; i < values.length; i++) {
- var result = values[i];
- var isValid = validate(a.nv, result[0], result[1], result[2]);
- if (inclusive) {
- allValid &= isValid;
- } else {
- allValid |= isValid;
- }
- }
- return allValid;
-}
-
-/**
- */
-
-function findValues(current, keypath, index, object, values) {
-
- if (index === keypath.length || current == void 0) {
-
- values.push([current, keypath[index - 1], object]);
- return;
- }
-
- var k = get(keypath, index);
-
- // ensure that if current is an array, that the current key
- // is NOT an array index. This sort of thing needs to work:
- // sift({'foo.0':42}, [{foo: [42]}]);
- if (isArray(current) && isNaN(Number(k))) {
- for (var i = 0, n = current.length; i < n; i++) {
- findValues(get(current, i), keypath, index, current, values);
- }
- } else {
- findValues(get(current, k), keypath, index + 1, current, values);
- }
-}
-
-/**
- */
-
-function createNestedValidator(keypath, a, q) {
- return { a: { k: keypath, nv: a, q: q }, v: nestedValidator };
-}
-
-/**
- * flatten the query
- */
-
-function isVanillaObject(value) {
- return value && value.constructor === Object;
-}
-
-function parse(query) {
- query = comparable(query);
-
- if (!query || !isVanillaObject(query)) { // cross browser support
- query = { $eq: query };
- }
-
- var validators = [];
-
- for (var key in query) {
- var a = query[key];
-
- if (key === '$options') {
- continue;
- }
-
- if (OPERATORS[key]) {
- if (prepare[key]) a = prepare[key](a, query);
- validators.push(createValidator(comparable(a), OPERATORS[key]));
- } else {
-
- if (key.charCodeAt(0) === 36) {
- throw new Error('Unknown operation ' + key);
- }
- validators.push(createNestedValidator(key.split('.'), parse(a), a));
- }
- }
-
- return validators.length === 1 ? validators[0] : createValidator(validators, OPERATORS.$and);
-}
-
-/**
- */
-
-function createRootValidator(query, getter) {
- var validator = parse(query);
- if (getter) {
- validator = {
- a: validator,
- v: function(a, b, k, o) {
- return validate(a, getter(b), k, o);
- }
- };
- }
- return validator;
-}
-
-/**
- */
-
-export default function sift(query, array, getter) {
-
- if (isFunction(array)) {
- getter = array;
- array = void 0;
- }
-
- var validator = createRootValidator(query, getter);
-
- function filter(b, k, o) {
- return validate(validator, b, k, o);
- }
-
- if (array) {
- return array.filter(filter);
- }
-
- return filter;
-}
-
-/**
- */
-
-export function indexOf(query, array, getter) {
- return search(array, createRootValidator(query, getter));
-};
-
-/**
- */
-
-export function compare(a, b) {
- if(a===b) return 0;
- if(typeof a === typeof b) {
- if (a > b) {
- return 1;
- }
- if (a < b) {
- return -1;
- }
- }
-}; \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-23 12:20:15 +0000