Base library usable any time.
目前為
此腳本不應該直接安裝，它是一個供其他腳本使用的函式庫。欲使用本函式庫，請在腳本 metadata 寫上： // @require https://update.cn-greasyfork.org/scripts/477290/1266692/NH_base.js
// ==UserScript==
// ==UserLibrary==
// @name NH_base
// @description Base library usable any time.
// @version 8
// @license GPL-3.0-or-later; https://www.gnu.org/licenses/gpl-3.0-standalone.html
// @homepageURL https://github.com/nexushoratio/userscripts
// @supportURL https://github.com/nexushoratio/userscripts/issues
// @match https://www.example.com/*
// ==/UserLibrary==
// ==/UserScript==
window.NexusHoratio ??= {};
window.NexusHoratio.base = (function base() {
'use strict';
const version = 8;
const NOT_FOUND = -1;
const testing = {
enabled: false,
funcs: [],
testCases: [],
};
/** Accumulated results from running a TestCase. */
class TestResult {
// TODO
}
/**
* An xUnit style test framework.
*
* Many expected methods exist, such as setUp, setUpClass, addCleanup,
* addClassCleanup, etc. No tearDown methods, however; use addCleanup.
*
* Generally, register the class with a test runner that will do them all in
* turn. One approach is to use a static initializer block at the top of
* the class.
*/
class TestCase {
/** Instantiate a TestCase. */
constructor() {
if (new.target === TestCase) {
throw new TypeError('Abstract class; do not instantiate directly.');
}
}
/**
* Instantiate this class and execute the tests.
* @returns {TestResult} - Collected results.
*/
static run() {
const result = new TestResult();
// TODO: introspection to find test methods and execute them.
return result;
}
/** Called once before any instances are created. */
static setUpClass() {
// Empty.
}
/**
* Register a function with arguments to run after all tests in the class
* have ran.
* @param {function} func - Function to call.
* @param {...*} rest - Arbitrary arguments to func.
*/
static addClassCleanup(func, ...rest) {
this.#classCleanups.push([func, rest]);
}
/** Called once before each test method. */
setUp() { // eslint-disable-line class-methods-use-this
// Empty.
}
/**
* Register a function with arguments to run after a test.
* @param {function} func - Function to call.
* @param {...*} rest - Arbitrary arguments to func.
*/
addCleanup(func, ...rest) {
this.#cleanups.push([func, rest]);
}
// TODO: Add assertions as needed.
static #classCleanups = [];
#cleanups = [];
}
/** Test Foo. */
class FooTestCase extends TestCase {
}
testing.testCases.push(FooTestCase);
/**
* A Number like class that supports operations.
*
* For lack of any other standard, methods will be named like those in
* Python's operator module.
*
* All operations should return `this` to allow chaining.
*
* The existence of the valueOf(), toString() and toJSON() methods will
* probably allow this class to work in many situations through type
* coercion.
*/
class NumberOp {
/** @param {number} value - Initial value, parsed by Number(). */
constructor(value = 0) {
this.assign(value);
}
/** @returns {number} - Current value. */
valueOf() {
return this.#value;
}
/** @returns {string} - Current value. */
toString() {
return `${this.valueOf()}`;
}
/** @returns {number} - Current value. */
toJSON() {
return this.valueOf();
}
/**
* @param {number} value - Number to assign.
* @returns {NumberOp} - This instance.
*/
assign(value) {
this.#value = Number(value);
return this;
}
/**
* @param {number} value - Number to add.
* @returns {NumberOp} - This instance.
*/
add(value) {
this.#value += Number(value);
return this;
}
#value
}
/* eslint-disable max-lines-per-function */
/* eslint-disable no-magic-numbers */
/* eslint-disable max-statements */
/** Test case. */
function testNumberOp() {
/**
* @typedef {object} NumberOpTest
* @property {function()} test - Function to execute.
* @property {*} expect - Expected results.
*/
/** @type {Map<string,NumberOpTest>} */
const tests = new Map();
tests.set('valueOfDefault', {test: () => {
const x = new NumberOp();
return x.valueOf();
},
expected: 0});
tests.set('valueOfExplicitNumber', {test: () => {
const x = new NumberOp(42);
return x.valueOf();
},
expected: 42});
tests.set('valueOfExplicitString', {test: () => {
const x = new NumberOp('52');
return x.valueOf();
},
expected: 52});
tests.set('toString', {test: () => {
const x = new NumberOp(123);
return x.toString();
},
expected: '123'});
tests.set('templateLiteral', {test: () => {
const val = new NumberOp(456);
return `abc${val}xyz`;
},
expected: 'abc456xyz'});
tests.set('basicMathInfixFirstOperand', {test: () => {
const x = new NumberOp(124);
return x + 6;
},
expected: 130});
tests.set('basicMathInfixSecondOperand', {test: () => {
const x = new NumberOp(5);
return 3 + x;
},
expected: 8});
tests.set('basicStringInfixFirstOperand', {test: () => {
const s = 'abc';
const x = new NumberOp(123);
return s + x;
},
expected: 'abc123'});
tests.set('basicStringInfixSecondOperand', {test: () => {
const x = new NumberOp(789);
const s = 'xyz';
return x + s;
},
expected: '789xyz'});
tests.set('assignOp', {test: () => {
const x = new NumberOp(123);
x.assign(42);
return x.valueOf();
},
expected: 42});
tests.set('addOpNumber', {test: () => {
const x = new NumberOp(3);
x.add(1);
return x.valueOf();
},
expected: 4});
tests.set('addOpString', {test: () => {
const x = new NumberOp(1);
x.add('5');
return x.valueOf();
},
expected: 6});
tests.set('addOpNumberOp', {test: () => {
const x = new NumberOp(3);
const y = new NumberOp(8);
x.add(y);
return x.valueOf();
},
expected: 11});
tests.set('addOpNegative', {test: () => {
const x = new NumberOp(8);
x.add(-16);
return x.valueOf();
},
expected: -8});
tests.set('addOpChaining', {test: () => {
const x = new NumberOp();
x.add(1).add(2)
.add(3);
return x.valueOf();
},
expected: 6});
tests.set('generalOpChaining', {test: () => {
const x = new NumberOp();
x.assign(40).add(2);
return x.valueOf();
},
expected: 42});
for (const [name, {test, expected}] of tests) {
const actual = test();
const passed = actual === expected;
const msg = `t:${name} e:${expected} a:${actual} p:${passed}`;
testing.log.log(msg);
if (!passed) {
throw new Error(msg);
}
}
}
/* eslint-enable */
testing.funcs.push(testNumberOp);
/**
* Subclass of {Map} similar to Python's defaultdict.
*
* First argument is a factory function that will create a new default value
* for the key if not already present in the container.
*
* The factory function may take arguments. If `.get()` is called with
* extra arguments, those will be passed to the factory if it needed.
*/
class DefaultMap extends Map {
/**
* @param {function(...args) : *} factory - Function that creates a new
* default value if a requested key is not present.
* @param {Iterable} [iterable] - Passed to {Map} super().
*/
constructor(factory, iterable) {
if (!(factory instanceof Function)) {
throw new TypeError('The factory argument MUST be of ' +
`type Function, not ${typeof factory}.`);
}
super(iterable);
this.#factory = factory;
}
/**
* Enhanced version of `Map.prototype.get()`.
* @param {*} key - The key of the element to return from this instance.
* @param {...*} args - Extra arguments passed tot he factory function if
* it is called.
* @returns {*} - The value associated with the key, perhaps newly
* created.
*/
get(key, ...args) {
if (!this.has(key)) {
this.set(key, this.#factory(...args));
}
return super.get(key);
}
#factory
}
/* eslint-disable max-lines-per-function */
/* eslint-disable no-magic-numbers */
/* eslint-disable no-unused-vars */
/** Test case. */
function testDefaultMap() {
/**
* @typedef {object} DefaultMapTest
* @property {function()} test - Function to execute.
* @property {*} expected - Expected results.
*/
/** @type {Map<string,DefaultMapTest>} */
const tests = new Map();
tests.set('noFactory', {test: () => {
try {
const dummy = new DefaultMap();
} catch (e) {
if (e instanceof TypeError) {
return 'caught';
}
}
return 'oops';
},
expected: 'caught'});
tests.set('badFactory', {test: () => {
try {
const dummy = new DefaultMap('a');
} catch (e) {
if (e instanceof TypeError) {
return 'caught';
}
}
return 'oops';
},
expected: 'caught'});
tests.set('withIterable', {test: () => {
const dummy = new DefaultMap(Number, [[1, 'one'], [2, 'two']]);
dummy.set(3, ['a', 'b']);
dummy.get(4);
return JSON.stringify(Array.from(dummy.entries()));
},
expected: '[[1,"one"],[2,"two"],[3,["a","b"]],[4,0]]'});
tests.set('counter', {test: () => {
const dummy = new DefaultMap(() => new NumberOp());
dummy.get('a');
dummy.get('b').add(1);
dummy.get('b').add(1);
dummy.get('c');
return JSON.stringify(Array.from(dummy.entries()));
},
expected: '[["a",0],["b",2],["c",0]]'});
tests.set('array', {test: () => {
const dummy = new DefaultMap(Array);
dummy.get('a').push(1, 2, 3);
dummy.get('b').push(4, 5, 6);
dummy.get('a').push('one', 'two', 'three');
return JSON.stringify(Array.from(dummy.entries()));
},
expected: '[["a",[1,2,3,"one","two","three"]],["b",[4,5,6]]]'});
tests.set('factoryWithArgs', {test: () => {
const dummy = new DefaultMap(x => new NumberOp(x));
const a = dummy.get('a');
const b = dummy.get('b', 5);
return JSON.stringify([a, b]);
},
expected: '[0,5]'});
for (const [name, {test, expected}] of tests) {
const actual = test();
const passed = actual === expected;
const msg = `t:${name} e:${expected} a:${actual} p:${passed}`;
testing.log.log(msg);
if (!passed) {
throw new Error(msg);
}
}
}
/* eslint-enable */
testing.funcs.push(testDefaultMap);
/**
* Fancy-ish log messages.
*
* Console message groups can be started and ended using special methods.
*
* @example
* const log = new Logger('Bob');
* foo(x) {
* const me = 'foo';
* log.entered(me, x);
* ... do stuff ...
* log.starting('loop');
* for (const item in items) {
* log.log(`Processing ${item}`);
* ...
* }
* log.finished('loop');
* log.leaving(me, y);
* return y;
* }
*
* Logger.config('Bob').enabled = true;
* Logger.config('Bob').group('foo').mode = 'silenced');
*/
class Logger {
/** @param {string} name - Name for this logger. */
constructor(name) {
this.#name = name;
this.#config = Logger.config(name);
Logger.#loggers.get(this.#name).push(new WeakRef(this));
}
/** @type {object} - Logger configurations. */
static get configs() {
return Logger.#toPojo();
}
/** @param {object} val - Logger configurations. */
static set configs(val) {
Logger.#fromPojo(val);
}
/** @type {string[]} - Names of known loggers. */
static get loggers() {
return Array.from(this.#loggers.keys());
}
/**
* Get configuration of a specific Logger.
* @param {string} name - Logger configuration to get.
* @returns {Logger.Config} - Current config for that Logger.
*/
static config(name) {
return this.#configs.get(name);
}
/** Reset all configs to an empty state. */
static resetConfigs() {
this.#configs.clear();
}
/** Clear the console. */
static clear() {
this.#clear();
}
/** @type {boolean} - Whether logging is currently enabled. */
get enabled() {
return this.#config.enabled;
}
/** @type {string} - Name for this logger. */
get name() {
return this.#name;
}
/** @type {boolean} - Indicates whether current group is silenced. */
get silenced() {
let ret = false;
const group = this.#groupStack.at(-1);
if (group) {
const mode = this.#config.group(group).mode;
ret = mode === Logger.#GroupMode.Silenced;
}
return ret;
}
/** @type {boolean} - Indicates whether messages include a stack trace. */
get includeStackTrace() {
return this.#config.includeStackTrace;
}
/**
* Log a specific message.
* @param {string} msg - Message to send to console.debug.
* @param {...*} rest - Arbitrary items to pass to console.debug.
*/
log(msg, ...rest) {
this.#log(msg, ...rest);
}
/**
* Indicate entered a specific group.
* @param {string} group - Group that was entered.
* @param {...*} rest - Arbitrary items to pass to console.debug.
*/
entered(group, ...rest) {
this.#intro(group, Logger.#GroupMode.Opened, ...rest);
}
/**
* Indicate leaving a specific group.
* @param {string} group - Group leaving.
* @param {...*} rest - Arbitrary items to pass to console.debug.
*/
leaving(group, ...rest) {
this.#outro(group, ...rest);
}
/**
* Indicate starting a specific collapsed group.
* @param {string} group - Group that is being started.
* @param {...*} rest - Arbitrary items to pass to console.debug.
*/
starting(group, ...rest) {
this.#intro(group, Logger.#GroupMode.Closed, ...rest);
}
/**
* Indicate finishe a specific collapsed group.
* @param {string} group - Group that was entered.
* @param {...*} rest - Arbitrary items to pass to console.debug.
*/
finished(group, ...rest) {
this.#outro(group, ...rest);
}
static #configs = new DefaultMap(() => new Logger.#Config());
static #loggers = new DefaultMap(Array);
/**
* Set Logger configs from a plain object.
* @param {object} pojo - Created by {Logger.#toPojo}.
*/
static #fromPojo = (pojo) => {
if (pojo && pojo.type === 'LoggerConfigs') {
this.resetConfigs();
for (const [k, v] of Object.entries(pojo.entries)) {
this.#configs.get(k).fromPojo(v);
}
}
}
/** @returns {object} - Logger.#configs as a plain object. */
static #toPojo = () => {
const pojo = {
type: 'LoggerConfigs',
entries: {},
};
for (const [k, v] of this.#configs.entries()) {
pojo.entries[k] = v.toPojo();
}
return pojo;
}
/* eslint-disable no-console */
static #clear = () => {
console.clear();
}
/**
* Log a specific message.
* @param {string} msg - Message to send to console.debug.
* @param {...*} rest - Arbitrary items to pass to console.debug.
*/
#log = (msg, ...rest) => {
if (this.enabled && !this.silenced) {
if (this.includeStackTrace) {
console.groupCollapsed(`${this.name} call stack`);
console.includeStackTrace();
console.groupEnd();
}
console.debug(`${this.name}: ${msg}`, ...rest);
}
}
/**
* Introduces a specific group.
* @param {string} group - Group being created.
* @param {Logger.#GroupMode} defaultMode - Mode to use if new.
* @param {...*} rest - Arbitrary items to pass to console.debug.
*/
#intro = (group, defaultMode, ...rest) => {
this.#groupStack.push(group);
const mode = this.#config.group(group, defaultMode).mode;
if (this.enabled && mode !== Logger.#GroupMode.Silenced) {
console[mode.func](`${this.name}: ${group}`);
if (rest.length) {
const msg = `${mode.greeting} ${group} with`;
this.log(msg, ...rest);
}
}
}
/**
* Concludes a specific group.
* @param {string} group - Group leaving.
* @param {...*} rest - Arbitrary items to pass to console.debug.
*/
#outro = (group, ...rest) => {
const lastGroup = this.#groupStack.pop();
if (group !== lastGroup) {
console.error(`${this.name}: Group mismatch! Passed ` +
`"${group}", expected to see "${lastGroup}"`);
}
const mode = this.#config.group(group).mode;
if (this.enabled && mode !== Logger.#GroupMode.Silenced) {
let msg = `${mode.farewell} ${group}`;
if (rest.length) {
msg += ' with:';
}
this.log(msg, ...rest);
console.groupEnd();
}
}
/* eslint-enable */
static #Config = class {
/** @type {boolean} - Whether logging is currently enabled. */
get enabled() {
return this.#enabled;
}
/** @param {boolean} val - Set whether logging is currently enabled. */
set enabled(val) {
this.#enabled = Boolean(val);
}
/** @type {Map<string,Logger.#Group>} - Per group settings. */
get groups() {
return this.#groups;
}
/** @type {boolean} - Whether messages include a stack trace. */
get includeStackTrace() {
return this.#includeStackTrace;
}
/** @param {boolean} val - Set inclusion of stack traces. */
set includeStackTrace(val) {
this.#includeStackTrace = Boolean(val);
}
/**
* @param {string} name - Name of the group to get.
* @param {Logger.#GroupMode} mode - Default mode if not seen before.
* @returns {Logger.#Group} - Requested group, perhaps newly made.
*/
group(name, mode) {
const sanitizedName = name ?? 'null';
const defaultMode = mode ?? 'opened';
return this.#groups.get(sanitizedName, defaultMode);
}
/** @returns {object} - Config as a plain object. */
toPojo() {
const pojo = {
enabled: this.enabled,
includeStackTrace: this.includeStackTrace,
groups: {},
};
for (const [k, v] of this.groups) {
pojo.groups[k] = {
mode: v.mode.name,
};
}
return pojo;
}
/** @param {object} pojo - Config as a plain object. */
fromPojo(pojo) {
if (Object.hasOwn(pojo, 'enabled')) {
this.enabled = pojo.enabled;
}
if (Object.hasOwn(pojo, 'includeStackTrace')) {
this.includeStackTrace = pojo.includeStackTrace;
}
if (Object.hasOwn(pojo, 'groups')) {
for (const [k, v] of Object.entries(pojo.groups)) {
const gm = Logger.#GroupMode.byName(v.mode);
if (gm) {
this.group(k).mode = gm;
}
}
}
}
#enabled = false;
#includeStackTrace = false;
#groups = new DefaultMap(x => new Logger.#Group(x));
}
static #Group = class {
/** @param {Logger.#GroupMode} mode - Initial mode for this group. */
constructor(mode) {
this.mode = mode;
}
/** @type {Logger.#GroupMode} */
get mode() {
return this.#mode;
}
/** @param {Logger.#GroupMode} val - Mode to set this group. */
set mode(val) {
let newVal = val;
if (!(newVal instanceof Logger.#GroupMode)) {
newVal = Logger.#GroupMode.byName(newVal);
}
if (newVal) {
this.#mode = newVal;
}
}
#mode
}
/** Enum/helper for Logger groups. */
static #GroupMode = class {
/**
* @param {string} name - Mode name.
* @param {string} [greeting] - Greeting when opening group.
* @param {string} [farewell] - Salutation when closing group.
* @param {string} [func] - console.func to use for opening group.
*/
constructor(name, greeting, farewell, func) { // eslint-disable-line max-params
this.#farewell = farewell;
this.#func = func;
this.#greeting = greeting;
this.#name = name;
Logger.#GroupMode.#known.set(name, this);
Object.freeze(this);
}
/**
* Find GroupMode by name.
* @param {string} name - Mode name.
* @returns {GroupMode} - Mode, if found.
*/
static byName(name) {
return this.#known.get(name);
}
/** @type {string} - Mode name. */
get name() {
return this.#name;
}
/** @type {string} - Greeting when opening group. */
get greeting() {
return this.#greeting;
}
/** @type {string} - Farewell when closing group. */
get farewell() {
return this.#farewell;
}
/** @type {string} - console.func to use for opening group. */
get func() {
return this.#func;
}
static #known = new Map();
#farewell
#func
#greeting
#name
}
static {
Logger.#GroupMode.Silenced = new Logger.#GroupMode('silenced');
Logger.#GroupMode.Opened = new Logger.#GroupMode(
'opened', 'Entered', 'Leaving', 'group'
);
Logger.#GroupMode.Closed = new Logger.#GroupMode(
'closed', 'Starting', 'Finished', 'groupCollapsed'
);
Object.freeze(Logger.#GroupMode);
}
// JavaScript does not support friend type access, so embedded these
// tests.
static #testGroupMode
static {
/* eslint-disable max-lines-per-function */
/** Test case. */
Logger.#testGroupMode = () => {
const tests = new Map();
tests.set('classIsFrozen', {test: () => {
try {
Logger.#GroupMode.Bob = {};
} catch (e) {
if (e instanceof TypeError) {
return 'cold';
}
}
return 'hot';
},
expected: 'cold'});
tests.set('instanceIsFrozen', {test: () => {
try {
Logger.#GroupMode.Silenced.newProp = 'data';
} catch (e) {
if (e.message.includes('newProp')) {
return 'cold';
}
return 'exception message missing newProp';
}
return 'hot';
},
expected: 'cold'});
tests.set('byName', {test: () => {
const gm = Logger.#GroupMode.byName('closed');
return gm;
},
expected: Logger.#GroupMode.Closed});
tests.set('byNameBad', {test: () => {
const gm = Logger.#GroupMode.byName('bob');
if (!gm) {
return 'expected-missing-bob';
}
return 'confused-bob';
},
expected: 'expected-missing-bob'});
for (const [name, {test, expected}] of tests) {
const actual = test();
const passed = actual === expected;
const msg = `t:${name} e:${expected} a:${actual} p:${passed}`;
testing.log.log(msg);
if (!passed) {
throw new Error(msg);
}
}
};
/* eslint-enable */
Logger.#testGroupMode.testName = 'testLoggerGroupMode';
testing.funcs.push(Logger.#testGroupMode);
}
#config
#groupStack = [];
#name
}
/* eslint-disable max-lines-per-function */
/* eslint-disable max-statements */
/** Test case. */
function testLogger() {
const tests = new Map();
tests.set('testReset', {test: () => {
Logger.config('testReset').enabled = true;
Logger.resetConfigs();
return JSON.stringify(Logger.configs.entries);
},
expected: '{}'});
tests.set('defaultDisabled', {test: () => {
const config = Logger.config('defaultDisabled');
return config.enabled;
},
expected: false});
tests.set('defaultNoStackTraces', {test: () => {
const config = Logger.config('defaultNoStackTraces');
return config.includeStackTrace;
},
expected: false});
tests.set('defaultNoGroups', {test: () => {
const config = Logger.config('defaultNoGroups');
return config.groups.size;
},
expected: 0});
tests.set('openedGroup', {test: () => {
const logger = new Logger('openedGroup');
logger.entered('ent');
return Logger.config('openedGroup').groups.get('ent').mode.name;
},
expected: 'opened'});
tests.set('closedGroup', {test: () => {
const logger = new Logger('closedGroup');
logger.starting('start');
return Logger.config('closedGroup').groups.get('start').mode.name;
},
expected: 'closed'});
tests.set('expectMismatchedGroup', {test: () => {
// This test requires manual verification that an error message was
// logged:
// <name>: Group mismatch! Passed "two", expected to see "one"
const logger = new Logger('expectMismatchedGroup');
logger.entered('one');
logger.leaving('two');
return 'x';
},
expected: 'x'});
tests.set('updateGroupByString', {test: () => {
const logger = new Logger('updateGroupByString');
logger.entered('one');
Logger.config('updateGroupByString').group('one').mode = 'silenced';
return Logger.config('updateGroupByString').group('one').mode.name;
},
expected: 'silenced'});
tests.set('restoreConfigsBools', {test: () => {
const me = 'restoreConfigsBools';
const results = [];
Logger.config(me).includeStackTrace = true;
results.push(Logger.config(me).includeStackTrace);
const oldConfigs = Logger.configs;
Logger.resetConfigs();
results.push(Logger.config(me).includeStackTrace);
// Bob is not in oldConfigs, so should go back to the default (false)
// after restoring the configs.
Logger.config('Bob').enabled = true;
Logger.configs = oldConfigs;
results.push(Logger.config(me).includeStackTrace);
results.push(Logger.config('Bob').enabled);
return JSON.stringify(results);
},
expected: '[true,false,true,false]'});
tests.set('restoreConfigsGroups', {test: () => {
const me = 'restoreConfigsGroups';
const results = [];
const logger = new Logger(me);
logger.starting('ent');
logger.finished('ent');
results.push(Logger.config(me).group('ent').mode.name);
const saved = Logger.configs;
Logger.resetConfigs();
results.push(Logger.config(me).group('ent').mode.name);
Logger.configs = saved;
results.push(Logger.config(me).group('ent').mode.name);
return JSON.stringify(results);
},
expected: '["closed","opened","closed"]'});
const savedConfigs = Logger.configs;
for (const [name, {test, expected}] of tests) {
Logger.resetConfigs();
const actual = test();
const passed = actual === expected;
const msg = `t:${name} e:${expected} a:${actual} p:${passed}`;
testing.log.log(msg);
if (!passed) {
throw new Error(msg);
}
}
Logger.configs = savedConfigs;
}
/* eslint-enable */
testing.funcs.push(testLogger);
/**
* Basic test runner.
*
* This depends on {Logger}, hence the locationin this file.
*/
function runTests() {
if (testing.enabled) {
const me = 'Running tests';
testing.log = new Logger('Testing');
testing.log.entered(me);
for (const test of testing.funcs) {
const name = test.name || test.testName;
testing.log.starting(name);
test();
testing.log.finished(name);
}
testing.log.leaving(me);
testing.log.log('All tests passed.');
}
}
testing.run = runTests;
/**
* Create a UUID-like string with a base.
* @param {string} strBase - Base value for the string.
* @returns {string} - A unique string.
*/
function uuId(strBase) {
return `${strBase}-${crypto.randomUUID()}`;
}
/**
* Normalizes a string to be safe to use as an HTML element id.
* @param {string} input - The string to normalize.
* @returns {string} - Normlized string.
*/
function safeId(input) {
let result = input
.replaceAll(' ', '-')
.replaceAll('.', '_')
.replaceAll(',', '__comma__')
.replaceAll(':', '__colon__');
if (!(/^[a-z_]/iu).test(result)) {
result = `a${result}`;
}
return result;
}
/** Test case. */
function testSafeId() {
const tests = [
{test: 'Tabby Cat', expected: 'Tabby-Cat'},
{test: '_', expected: '_'},
{test: '', expected: 'a'},
{test: '0', expected: 'a0'},
{test: 'a.b.c', expected: 'a_b_c'},
{test: 'a,b,c', expected: 'a__comma__b__comma__c'},
{test: 'a:b::c', expected: 'a__colon__b__colon____colon__c'},
];
for (const {test, expected} of tests) {
const actual = safeId(test);
const passed = actual === expected;
const msg = `${test} ${expected} ${actual}, ${passed}`;
testing.log.log(msg);
if (!passed) {
throw new Error(msg);
}
}
}
testing.funcs.push(testSafeId);
/**
* Java's hashCode: s[0]*31(n-1) + s[1]*31(n-2) + ... + s[n-1]
* @param {string} s - String to hash.
* @returns {string} - Hash value.
*/
function strHash(s) {
let hash = 0;
for (let i = 0; i < s.length; i += 1) {
// eslint-disable-next-line no-magic-numbers
hash = (hash * 31) + s.charCodeAt(i) | 0;
}
return `${hash}`;
}
return {
version: version,
NOT_FOUND: NOT_FOUND,
testing: testing,
TestCase: TestCase,
DefaultMap: DefaultMap,
Logger: Logger,
uuId: uuId,
safeId: safeId,
strHash: strHash,
};
}());