add hw2

node_modules/yargs/build/lib/validation.js

@@ -0,0 +1,305 @@
+import { argsert } from './argsert.js';
+import { assertNotStrictEqual, } from './typings/common-types.js';
+import { levenshtein as distance } from './utils/levenshtein.js';
+import { objFilter } from './utils/obj-filter.js';
+const specialKeys = ['$0', '--', '_'];
+export function validation(yargs, usage, shim) {
+    const __ = shim.y18n.__;
+    const __n = shim.y18n.__n;
+    const self = {};
+    self.nonOptionCount = function nonOptionCount(argv) {
+        const demandedCommands = yargs.getDemandedCommands();
+        const positionalCount = argv._.length + (argv['--'] ? argv['--'].length : 0);
+        const _s = positionalCount - yargs.getInternalMethods().getContext().commands.length;
+        if (demandedCommands._ &&
+            (_s < demandedCommands._.min || _s > demandedCommands._.max)) {
+            if (_s < demandedCommands._.min) {
+                if (demandedCommands._.minMsg !== undefined) {
+                    usage.fail(demandedCommands._.minMsg
+                        ? demandedCommands._.minMsg
+                            .replace(/\$0/g, _s.toString())
+                            .replace(/\$1/, demandedCommands._.min.toString())
+                        : null);
+                }
+                else {
+                    usage.fail(__n('Not enough non-option arguments: got %s, need at least %s', 'Not enough non-option arguments: got %s, need at least %s', _s, _s.toString(), demandedCommands._.min.toString()));
+                }
+            }
+            else if (_s > demandedCommands._.max) {
+                if (demandedCommands._.maxMsg !== undefined) {
+                    usage.fail(demandedCommands._.maxMsg
+                        ? demandedCommands._.maxMsg
+                            .replace(/\$0/g, _s.toString())
+                            .replace(/\$1/, demandedCommands._.max.toString())
+                        : null);
+                }
+                else {
+                    usage.fail(__n('Too many non-option arguments: got %s, maximum of %s', 'Too many non-option arguments: got %s, maximum of %s', _s, _s.toString(), demandedCommands._.max.toString()));
+                }
+            }
+        }
+    };
+    self.positionalCount = function positionalCount(required, observed) {
+        if (observed < required) {
+            usage.fail(__n('Not enough non-option arguments: got %s, need at least %s', 'Not enough non-option arguments: got %s, need at least %s', observed, observed + '', required + ''));
+        }
+    };
+    self.requiredArguments = function requiredArguments(argv, demandedOptions) {
+        let missing = null;
+        for (const key of Object.keys(demandedOptions)) {
+            if (!Object.prototype.hasOwnProperty.call(argv, key) ||
+                typeof argv[key] === 'undefined') {
+                missing = missing || {};
+                missing[key] = demandedOptions[key];
+            }
+        }
+        if (missing) {
+            const customMsgs = [];
+            for (const key of Object.keys(missing)) {
+                const msg = missing[key];
+                if (msg && customMsgs.indexOf(msg) < 0) {
+                    customMsgs.push(msg);
+                }
+            }
+            const customMsg = customMsgs.length ? `\n${customMsgs.join('\n')}` : '';
+            usage.fail(__n('Missing required argument: %s', 'Missing required arguments: %s', Object.keys(missing).length, Object.keys(missing).join(', ') + customMsg));
+        }
+    };
+    self.unknownArguments = function unknownArguments(argv, aliases, positionalMap, isDefaultCommand, checkPositionals = true) {
+        var _a;
+        const commandKeys = yargs
+            .getInternalMethods()
+            .getCommandInstance()
+            .getCommands();
+        const unknown = [];
+        const currentContext = yargs.getInternalMethods().getContext();
+        Object.keys(argv).forEach(key => {
+            if (!specialKeys.includes(key) &&
+                !Object.prototype.hasOwnProperty.call(positionalMap, key) &&
+                !Object.prototype.hasOwnProperty.call(yargs.getInternalMethods().getParseContext(), key) &&
+                !self.isValidAndSomeAliasIsNotNew(key, aliases)) {
+                unknown.push(key);
+            }
+        });
+        if (checkPositionals &&
+            (currentContext.commands.length > 0 ||
+                commandKeys.length > 0 ||
+                isDefaultCommand)) {
+            argv._.slice(currentContext.commands.length).forEach(key => {
+                if (!commandKeys.includes('' + key)) {
+                    unknown.push('' + key);
+                }
+            });
+        }
+        if (checkPositionals) {
+            const demandedCommands = yargs.getDemandedCommands();
+            const maxNonOptDemanded = ((_a = demandedCommands._) === null || _a === void 0 ? void 0 : _a.max) || 0;
+            const expected = currentContext.commands.length + maxNonOptDemanded;
+            if (expected < argv._.length) {
+                argv._.slice(expected).forEach(key => {
+                    key = String(key);
+                    if (!currentContext.commands.includes(key) &&
+                        !unknown.includes(key)) {
+                        unknown.push(key);
+                    }
+                });
+            }
+        }
+        if (unknown.length) {
+            usage.fail(__n('Unknown argument: %s', 'Unknown arguments: %s', unknown.length, unknown.map(s => (s.trim() ? s : `"${s}"`)).join(', ')));
+        }
+    };
+    self.unknownCommands = function unknownCommands(argv) {
+        const commandKeys = yargs
+            .getInternalMethods()
+            .getCommandInstance()
+            .getCommands();
+        const unknown = [];
+        const currentContext = yargs.getInternalMethods().getContext();
+        if (currentContext.commands.length > 0 || commandKeys.length > 0) {
+            argv._.slice(currentContext.commands.length).forEach(key => {
+                if (!commandKeys.includes('' + key)) {
+                    unknown.push('' + key);
+                }
+            });
+        }
+        if (unknown.length > 0) {
+            usage.fail(__n('Unknown command: %s', 'Unknown commands: %s', unknown.length, unknown.join(', ')));
+            return true;
+        }
+        else {
+            return false;
+        }
+    };
+    self.isValidAndSomeAliasIsNotNew = function isValidAndSomeAliasIsNotNew(key, aliases) {
+        if (!Object.prototype.hasOwnProperty.call(aliases, key)) {
+            return false;
+        }
+        const newAliases = yargs.parsed.newAliases;
+        return [key, ...aliases[key]].some(a => !Object.prototype.hasOwnProperty.call(newAliases, a) || !newAliases[key]);
+    };
+    self.limitedChoices = function limitedChoices(argv) {
+        const options = yargs.getOptions();
+        const invalid = {};
+        if (!Object.keys(options.choices).length)
+            return;
+        Object.keys(argv).forEach(key => {
+            if (specialKeys.indexOf(key) === -1 &&
+                Object.prototype.hasOwnProperty.call(options.choices, key)) {
+                [].concat(argv[key]).forEach(value => {
+                    if (options.choices[key].indexOf(value) === -1 &&
+                        value !== undefined) {
+                        invalid[key] = (invalid[key] || []).concat(value);
+                    }
+                });
+            }
+        });
+        const invalidKeys = Object.keys(invalid);
+        if (!invalidKeys.length)
+            return;
+        let msg = __('Invalid values:');
+        invalidKeys.forEach(key => {
+            msg += `\n  ${__('Argument: %s, Given: %s, Choices: %s', key, usage.stringifiedValues(invalid[key]), usage.stringifiedValues(options.choices[key]))}`;
+        });
+        usage.fail(msg);
+    };
+    let implied = {};
+    self.implies = function implies(key, value) {
+        argsert('<string|object> [array|number|string]', [key, value], arguments.length);
+        if (typeof key === 'object') {
+            Object.keys(key).forEach(k => {
+                self.implies(k, key[k]);
+            });
+        }
+        else {
+            yargs.global(key);
+            if (!implied[key]) {
+                implied[key] = [];
+            }
+            if (Array.isArray(value)) {
+                value.forEach(i => self.implies(key, i));
+            }
+            else {
+                assertNotStrictEqual(value, undefined, shim);
+                implied[key].push(value);
+            }
+        }
+    };
+    self.getImplied = function getImplied() {
+        return implied;
+    };
+    function keyExists(argv, val) {
+        const num = Number(val);
+        val = isNaN(num) ? val : num;
+        if (typeof val === 'number') {
+            val = argv._.length >= val;
+        }
+        else if (val.match(/^--no-.+/)) {
+            val = val.match(/^--no-(.+)/)[1];
+            val = !Object.prototype.hasOwnProperty.call(argv, val);
+        }
+        else {
+            val = Object.prototype.hasOwnProperty.call(argv, val);
+        }
+        return val;
+    }
+    self.implications = function implications(argv) {
+        const implyFail = [];
+        Object.keys(implied).forEach(key => {
+            const origKey = key;
+            (implied[key] || []).forEach(value => {
+                let key = origKey;
+                const origValue = value;
+                key = keyExists(argv, key);
+                value = keyExists(argv, value);
+                if (key && !value) {
+                    implyFail.push(` ${origKey} -> ${origValue}`);
+                }
+            });
+        });
+        if (implyFail.length) {
+            let msg = `${__('Implications failed:')}\n`;
+            implyFail.forEach(value => {
+                msg += value;
+            });
+            usage.fail(msg);
+        }
+    };
+    let conflicting = {};
+    self.conflicts = function conflicts(key, value) {
+        argsert('<string|object> [array|string]', [key, value], arguments.length);
+        if (typeof key === 'object') {
+            Object.keys(key).forEach(k => {
+                self.conflicts(k, key[k]);
+            });
+        }
+        else {
+            yargs.global(key);
+            if (!conflicting[key]) {
+                conflicting[key] = [];
+            }
+            if (Array.isArray(value)) {
+                value.forEach(i => self.conflicts(key, i));
+            }
+            else {
+                conflicting[key].push(value);
+            }
+        }
+    };
+    self.getConflicting = () => conflicting;
+    self.conflicting = function conflictingFn(argv) {
+        Object.keys(argv).forEach(key => {
+            if (conflicting[key]) {
+                conflicting[key].forEach(value => {
+                    if (value && argv[key] !== undefined && argv[value] !== undefined) {
+                        usage.fail(__('Arguments %s and %s are mutually exclusive', key, value));
+                    }
+                });
+            }
+        });
+        if (yargs.getInternalMethods().getParserConfiguration()['strip-dashed']) {
+            Object.keys(conflicting).forEach(key => {
+                conflicting[key].forEach(value => {
+                    if (value &&
+                        argv[shim.Parser.camelCase(key)] !== undefined &&
+                        argv[shim.Parser.camelCase(value)] !== undefined) {
+                        usage.fail(__('Arguments %s and %s are mutually exclusive', key, value));
+                    }
+                });
+            });
+        }
+    };
+    self.recommendCommands = function recommendCommands(cmd, potentialCommands) {
+        const threshold = 3;
+        potentialCommands = potentialCommands.sort((a, b) => b.length - a.length);
+        let recommended = null;
+        let bestDistance = Infinity;
+        for (let i = 0, candidate; (candidate = potentialCommands[i]) !== undefined; i++) {
+            const d = distance(cmd, candidate);
+            if (d <= threshold && d < bestDistance) {
+                bestDistance = d;
+                recommended = candidate;
+            }
+        }
+        if (recommended)
+            usage.fail(__('Did you mean %s?', recommended));
+    };
+    self.reset = function reset(localLookup) {
+        implied = objFilter(implied, k => !localLookup[k]);
+        conflicting = objFilter(conflicting, k => !localLookup[k]);
+        return self;
+    };
+    const frozens = [];
+    self.freeze = function freeze() {
+        frozens.push({
+            implied,
+            conflicting,
+        });
+    };
+    self.unfreeze = function unfreeze() {
+        const frozen = frozens.pop();
+        assertNotStrictEqual(frozen, undefined, shim);
+        ({ implied, conflicting } = frozen);
+    };
+    return self;
+}