first commit

app_vue/node_modules/@hapi/hoek/lib/contain.js

@@ -0,0 +1,307 @@
+'use strict';
+
+const Assert = require('./assert');
+const DeepEqual = require('./deepEqual');
+const EscapeRegex = require('./escapeRegex');
+const Utils = require('./utils');
+
+
+const internals = {};
+
+
+module.exports = function (ref, values, options = {}) {        // options: { deep, once, only, part, symbols }
+
+    /*
+        string -> string(s)
+        array -> item(s)
+        object -> key(s)
+        object -> object (key:value)
+    */
+
+    if (typeof values !== 'object') {
+        values = [values];
+    }
+
+    Assert(!Array.isArray(values) || values.length, 'Values array cannot be empty');
+
+    // String
+
+    if (typeof ref === 'string') {
+        return internals.string(ref, values, options);
+    }
+
+    // Array
+
+    if (Array.isArray(ref)) {
+        return internals.array(ref, values, options);
+    }
+
+    // Object
+
+    Assert(typeof ref === 'object', 'Reference must be string or an object');
+    return internals.object(ref, values, options);
+};
+
+
+internals.array = function (ref, values, options) {
+
+    if (!Array.isArray(values)) {
+        values = [values];
+    }
+
+    if (!ref.length) {
+        return false;
+    }
+
+    if (options.only &&
+        options.once &&
+        ref.length !== values.length) {
+
+        return false;
+    }
+
+    let compare;
+
+    // Map values
+
+    const map = new Map();
+    for (const value of values) {
+        if (!options.deep ||
+            !value ||
+            typeof value !== 'object') {
+
+            const existing = map.get(value);
+            if (existing) {
+                ++existing.allowed;
+            }
+            else {
+                map.set(value, { allowed: 1, hits: 0 });
+            }
+        }
+        else {
+            compare = compare || internals.compare(options);
+
+            let found = false;
+            for (const [key, existing] of map.entries()) {
+                if (compare(key, value)) {
+                    ++existing.allowed;
+                    found = true;
+                    break;
+                }
+            }
+
+            if (!found) {
+                map.set(value, { allowed: 1, hits: 0 });
+            }
+        }
+    }
+
+    // Lookup values
+
+    let hits = 0;
+    for (const item of ref) {
+        let match;
+        if (!options.deep ||
+            !item ||
+            typeof item !== 'object') {
+
+            match = map.get(item);
+        }
+        else {
+            compare = compare || internals.compare(options);
+
+            for (const [key, existing] of map.entries()) {
+                if (compare(key, item)) {
+                    match = existing;
+                    break;
+                }
+            }
+        }
+
+        if (match) {
+            ++match.hits;
+            ++hits;
+
+            if (options.once &&
+                match.hits > match.allowed) {
+
+                return false;
+            }
+        }
+    }
+
+    // Validate results
+
+    if (options.only &&
+        hits !== ref.length) {
+
+        return false;
+    }
+
+    for (const match of map.values()) {
+        if (match.hits === match.allowed) {
+            continue;
+        }
+
+        if (match.hits < match.allowed &&
+            !options.part) {
+
+            return false;
+        }
+    }
+
+    return !!hits;
+};
+
+
+internals.object = function (ref, values, options) {
+
+    Assert(options.once === undefined, 'Cannot use option once with object');
+
+    const keys = Utils.keys(ref, options);
+    if (!keys.length) {
+        return false;
+    }
+
+    // Keys list
+
+    if (Array.isArray(values)) {
+        return internals.array(keys, values, options);
+    }
+
+    // Key value pairs
+
+    const symbols = Object.getOwnPropertySymbols(values).filter((sym) => values.propertyIsEnumerable(sym));
+    const targets = [...Object.keys(values), ...symbols];
+
+    const compare = internals.compare(options);
+    const set = new Set(targets);
+
+    for (const key of keys) {
+        if (!set.has(key)) {
+            if (options.only) {
+                return false;
+            }
+
+            continue;
+        }
+
+        if (!compare(values[key], ref[key])) {
+            return false;
+        }
+
+        set.delete(key);
+    }
+
+    if (set.size) {
+        return options.part ? set.size < targets.length : false;
+    }
+
+    return true;
+};
+
+
+internals.string = function (ref, values, options) {
+
+    // Empty string
+
+    if (ref === '') {
+        return values.length === 1 && values[0] === '' ||               // '' contains ''
+            !options.once && !values.some((v) => v !== '');             // '' contains multiple '' if !once
+    }
+
+    // Map values
+
+    const map = new Map();
+    const patterns = [];
+
+    for (const value of values) {
+        Assert(typeof value === 'string', 'Cannot compare string reference to non-string value');
+
+        if (value) {
+            const existing = map.get(value);
+            if (existing) {
+                ++existing.allowed;
+            }
+            else {
+                map.set(value, { allowed: 1, hits: 0 });
+                patterns.push(EscapeRegex(value));
+            }
+        }
+        else if (options.once ||
+            options.only) {
+
+            return false;
+        }
+    }
+
+    if (!patterns.length) {                     // Non-empty string contains unlimited empty string
+        return true;
+    }
+
+    // Match patterns
+
+    const regex = new RegExp(`(${patterns.join('|')})`, 'g');
+    const leftovers = ref.replace(regex, ($0, $1) => {
+
+        ++map.get($1).hits;
+        return '';                              // Remove from string
+    });
+
+    // Validate results
+
+    if (options.only &&
+        leftovers) {
+
+        return false;
+    }
+
+    let any = false;
+    for (const match of map.values()) {
+        if (match.hits) {
+            any = true;
+        }
+
+        if (match.hits === match.allowed) {
+            continue;
+        }
+
+        if (match.hits < match.allowed &&
+            !options.part) {
+
+            return false;
+        }
+
+        // match.hits > match.allowed
+
+        if (options.once) {
+            return false;
+        }
+    }
+
+    return !!any;
+};
+
+
+internals.compare = function (options) {
+
+    if (!options.deep) {
+        return internals.shallow;
+    }
+
+    const hasOnly = options.only !== undefined;
+    const hasPart = options.part !== undefined;
+
+    const flags = {
+        prototype: hasOnly ? options.only : hasPart ? !options.part : false,
+        part: hasOnly ? !options.only : hasPart ? options.part : false
+    };
+
+    return (a, b) => DeepEqual(a, b, flags);
+};
+
+
+internals.shallow = function (a, b) {
+
+    return a === b;
+};