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luhn-generator

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A generator of numbers that passes the validation of Luhn algorithm or Luhn formula, also known as the 'modulus 10' or 'mod 10' algorithm

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'use strict'; var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } // A simple implementation of make-array function make_array(subject) { return Array.isArray(subject) ? subject : [subject]; } var REGEX_BLANK_LINE = /^\s+$/; var REGEX_LEADING_EXCAPED_EXCLAMATION = /^\\!/; var REGEX_LEADING_EXCAPED_HASH = /^\\#/; var SLASH = '/'; var KEY_IGNORE = typeof Symbol !== 'undefined' ? Symbol.for('node-ignore') /* istanbul ignore next */ : 'node-ignore'; var define = function define(object, key, value) { return Object.defineProperty(object, key, { value }); }; var REGEX_REGEXP_RANGE = /([0-z])-([0-z])/g; // Sanitize the range of a regular expression // The cases are complicated, see test cases for details var sanitizeRange = function sanitizeRange(range) { return range.replace(REGEX_REGEXP_RANGE, function (match, from, to) { return from.charCodeAt(0) <= to.charCodeAt(0) ? match // Invalid range (out of order) which is ok for gitignore rules but // fatal for JavaScript regular expression, so eliminate it. : ''; }); }; // > If the pattern ends with a slash, // > it is removed for the purpose of the following description, // > but it would only find a match with a directory. // > In other words, foo/ will match a directory foo and paths underneath it, // > but will not match a regular file or a symbolic link foo // > (this is consistent with the way how pathspec works in general in Git). // '`foo/`' will not match regular file '`foo`' or symbolic link '`foo`' // -> ignore-rules will not deal with it, because it costs extra `fs.stat` call // you could use option `mark: true` with `glob` // '`foo/`' should not continue with the '`..`' var DEFAULT_REPLACER_PREFIX = [ // > Trailing spaces are ignored unless they are quoted with backslash ("\") [ // (a\ ) -> (a ) // (a ) -> (a) // (a \ ) -> (a ) /\\?\s+$/, function (match) { return match.indexOf('\\') === 0 ? ' ' : ''; }], // replace (\ ) with ' ' [/\\\s/g, function () { return ' '; }], // Escape metacharacters // which is written down by users but means special for regular expressions. // > There are 12 characters with special meanings: // > - the backslash \, // > - the caret ^, // > - the dollar sign $, // > - the period or dot ., // > - the vertical bar or pipe symbol |, // > - the question mark ?, // > - the asterisk or star *, // > - the plus sign +, // > - the opening parenthesis (, // > - the closing parenthesis ), // > - and the opening square bracket [, // > - the opening curly brace {, // > These special characters are often called "metacharacters". [/[\\^$.|*+(){]/g, function (match) { return `\\${match}`; }], [ // > [abc] matches any character inside the brackets // > (in this case a, b, or c); /\[([^\]/]*)($|\])/g, function (match, p1, p2) { return p2 === ']' ? `[${sanitizeRange(p1)}]` : `\\${match}`; }], [ // > a question mark (?) matches a single character /(?!\\)\?/g, function () { return '[^/]'; }], // leading slash [ // > A leading slash matches the beginning of the pathname. // > For example, "/*.c" matches "cat-file.c" but not "mozilla-sha1/sha1.c". // A leading slash matches the beginning of the pathname /^\//, function () { return '^'; }], // replace special metacharacter slash after the leading slash [/\//g, function () { return '\\/'; }], [ // > A leading "**" followed by a slash means match in all directories. // > For example, "**/foo" matches file or directory "foo" anywhere, // > the same as pattern "foo". // > "**/foo/bar" matches file or directory "bar" anywhere that is directly // > under directory "foo". // Notice that the '*'s have been replaced as '\\*' /^\^*\\\*\\\*\\\//, // '**/foo' <-> 'foo' function () { return '^(?:.*\\/)?'; }]]; var DEFAULT_REPLACER_SUFFIX = [ // starting [ // there will be no leading '/' // (which has been replaced by section "leading slash") // If starts with '**', adding a '^' to the regular expression also works /^(?=[^^])/, function startingReplacer() { return !/\/(?!$)/.test(this) // > If the pattern does not contain a slash /, // > Git treats it as a shell glob pattern // Actually, if there is only a trailing slash, // git also treats it as a shell glob pattern ? '(?:^|\\/)' // > Otherwise, Git treats the pattern as a shell glob suitable for // > consumption by fnmatch(3) : '^'; }], // two globstars [ // Use lookahead assertions so that we could match more than one `'/**'` /\\\/\\\*\\\*(?=\\\/|$)/g, // Zero, one or several directories // should not use '*', or it will be replaced by the next replacer // Check if it is not the last `'/**'` function (match, index, str) { return index + 6 < str.length // case: /**/ // > A slash followed by two consecutive asterisks then a slash matches // > zero or more directories. // > For example, "a/**/b" matches "a/b", "a/x/b", "a/x/y/b" and so on. // '/**/' ? '(?:\\/[^\\/]+)*' // case: /** // > A trailing `"/**"` matches everything inside. // #21: everything inside but it should not include the current folder : '\\/.+'; }], // intermediate wildcards [ // Never replace escaped '*' // ignore rule '\*' will match the path '*' // 'abc.*/' -> go // 'abc.*' -> skip this rule /(^|[^\\]+)\\\*(?=.+)/g, // '*.js' matches '.js' // '*.js' doesn't match 'abc' function (match, p1) { return `${p1}[^\\/]*`; }], // trailing wildcard [/(\^|\\\/)?\\\*$/, function (match, p1) { var prefix = p1 // '\^': // '/*' does not match '' // '/*' does not match everything // '\\\/': // 'abc/*' does not match 'abc/' ? `${p1}[^/]+` // 'a*' matches 'a' // 'a*' matches 'aa' : '[^/]*'; return `${prefix}(?=$|\\/$)`; }], [ // unescape /\\\\\\/g, function () { return '\\'; }]]; var POSITIVE_REPLACERS = [].concat(DEFAULT_REPLACER_PREFIX, [ // 'f' // matches // - /f(end) // - /f/ // - (start)f(end) // - (start)f/ // doesn't match // - oof // - foo // pseudo: // -> (^|/)f(/|$) // ending [ // 'js' will not match 'js.' // 'ab' will not match 'abc' /(?:[^*/])$/, // 'js*' will not match 'a.js' // 'js/' will not match 'a.js' // 'js' will match 'a.js' and 'a.js/' function (match) { return `${match}(?=$|\\/)`; }]], DEFAULT_REPLACER_SUFFIX); var NEGATIVE_REPLACERS = [].concat(DEFAULT_REPLACER_PREFIX, [ // #24, #38 // The MISSING rule of [gitignore docs](https://git-scm.com/docs/gitignore) // A negative pattern without a trailing wildcard should not // re-include the things inside that directory. // eg: // ['node_modules/*', '!node_modules'] // should ignore `node_modules/a.js` [/(?:[^*])$/, function (match) { return `${match}(?=$|\\/$)`; }]], DEFAULT_REPLACER_SUFFIX); // A simple cache, because an ignore rule only has only one certain meaning var cache = Object.create(null); // @param {pattern} var make_regex = function make_regex(pattern, negative, ignorecase) { var r = cache[pattern]; if (r) { return r; } var replacers = negative ? NEGATIVE_REPLACERS : POSITIVE_REPLACERS; var source = replacers.reduce(function (prev, current) { return prev.replace(current[0], current[1].bind(pattern)); }, pattern); return cache[pattern] = ignorecase ? new RegExp(source, 'i') : new RegExp(source); }; // > A blank line matches no files, so it can serve as a separator for readability. var checkPattern = function checkPattern(pattern) { return pattern && typeof pattern === 'string' && !REGEX_BLANK_LINE.test(pattern) // > A line starting with # serves as a comment. && pattern.indexOf('#') !== 0; }; var createRule = function createRule(pattern, ignorecase) { var origin = pattern; var negative = false; // > An optional prefix "!" which negates the pattern; if (pattern.indexOf('!') === 0) { negative = true; pattern = pattern.substr(1); } pattern = pattern // > Put a backslash ("\") in front of the first "!" for patterns that // > begin with a literal "!", for example, `"\!important!.txt"`. .replace(REGEX_LEADING_EXCAPED_EXCLAMATION, '!') // > Put a backslash ("\") in front of the first hash for patterns that // > begin with a hash. .replace(REGEX_LEADING_EXCAPED_HASH, '#'); var regex = make_regex(pattern, negative, ignorecase); return { origin, pattern, negative, regex }; }; var IgnoreBase = function () { function IgnoreBase() { var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {}, _ref$ignorecase = _ref.ignorecase, ignorecase = _ref$ignorecase === undefined ? true : _ref$ignorecase; _classCallCheck(this, IgnoreBase); this._rules = []; this._ignorecase = ignorecase; define(this, KEY_IGNORE, true); this._initCache(); } _createClass(IgnoreBase, [{ key: '_initCache', value: function _initCache() { this._cache = Object.create(null); } // @param {Array.<string>|string|Ignore} pattern }, { key: 'add', value: function add(pattern) { this._added = false; if (typeof pattern === 'string') { pattern = pattern.split(/\r?\n/g); } make_array(pattern).forEach(this._addPattern, this); // Some rules have just added to the ignore, // making the behavior changed. if (this._added) { this._initCache(); } return this; } // legacy }, { key: 'addPattern', value: function addPattern(pattern) { return this.add(pattern); } }, { key: '_addPattern', value: function _addPattern(pattern) { // #32 if (pattern && pattern[KEY_IGNORE]) { this._rules = this._rules.concat(pattern._rules); this._added = true; return; } if (checkPattern(pattern)) { var rule = createRule(pattern, this._ignorecase); this._added = true; this._rules.push(rule); } } }, { key: 'filter', value: function filter(paths) { var _this = this; return make_array(paths).filter(function (path) { return _this._filter(path); }); } }, { key: 'createFilter', value: function createFilter() { var _this2 = this; return function (path) { return _this2._filter(path); }; } }, { key: 'ignores', value: function ignores(path) { return !this._filter(path); } // @returns `Boolean` true if the `path` is NOT ignored }, { key: '_filter', value: function _filter(path, slices) { if (!path) { return false; } if (path in this._cache) { return this._cache[path]; } if (!slices) { // path/to/a.js // ['path', 'to', 'a.js'] slices = path.split(SLASH); } slices.pop(); return this._cache[path] = slices.length // > It is not possible to re-include a file if a parent directory of // > that file is excluded. // If the path contains a parent directory, check the parent first ? this._filter(slices.join(SLASH) + SLASH, slices) && this._test(path) // Or only test the path : this._test(path); } // @returns {Boolean} true if a file is NOT ignored }, { key: '_test', value: function _test(path) { // Explicitly define variable type by setting matched to `0` var matched = 0; this._rules.forEach(function (rule) { // if matched = true, then we only test negative rules // if matched = false, then we test non-negative rules if (!(matched ^ rule.negative)) { matched = rule.negative ^ rule.regex.test(path); } }); return !matched; } }]); return IgnoreBase; }(); // Windows // -------------------------------------------------------------- /* istanbul ignore if */ if ( // Detect `process` so that it can run in browsers. typeof process !== 'undefined' && (process.env && process.env.IGNORE_TEST_WIN32 || process.platform === 'win32')) { var filter = IgnoreBase.prototype._filter; /* eslint no-control-regex: "off" */ var make_posix = function make_posix(str) { return (/^\\\\\?\\/.test(str) || /[^\x00-\x80]+/.test(str) ? str : str.replace(/\\/g, '/') ); }; IgnoreBase.prototype._filter = function filterWin32(path, slices) { path = make_posix(path); return filter.call(this, path, slices); }; } module.exports = function (options) { return new IgnoreBase(options); };