78 lines
1.7 KiB
JavaScript
78 lines
1.7 KiB
JavaScript
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'use strict';
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const escapeStringRegexp = require('escape-string-regexp');
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const regexpCache = new Map();
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function makeRegexp(pattern, options) {
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options = {
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caseSensitive: false,
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...options
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};
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const cacheKey = pattern + JSON.stringify(options);
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if (regexpCache.has(cacheKey)) {
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return regexpCache.get(cacheKey);
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}
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const negated = pattern[0] === '!';
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if (negated) {
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pattern = pattern.slice(1);
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}
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pattern = escapeStringRegexp(pattern).replace(/\\\*/g, '[\\s\\S]*');
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const regexp = new RegExp(`^${pattern}$`, options.caseSensitive ? '' : 'i');
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regexp.negated = negated;
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regexpCache.set(cacheKey, regexp);
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return regexp;
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}
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module.exports = (inputs, patterns, options) => {
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if (!(Array.isArray(inputs) && Array.isArray(patterns))) {
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throw new TypeError(`Expected two arrays, got ${typeof inputs} ${typeof patterns}`);
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}
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if (patterns.length === 0) {
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return inputs;
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}
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const isFirstPatternNegated = patterns[0][0] === '!';
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patterns = patterns.map(pattern => makeRegexp(pattern, options));
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const result = [];
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for (const input of inputs) {
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// If first pattern is negated we include everything to match user expectation.
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let matches = isFirstPatternNegated;
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for (const pattern of patterns) {
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if (pattern.test(input)) {
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matches = !pattern.negated;
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}
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}
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if (matches) {
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result.push(input);
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}
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}
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return result;
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};
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module.exports.isMatch = (input, pattern, options) => {
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const inputArray = Array.isArray(input) ? input : [input];
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const patternArray = Array.isArray(pattern) ? pattern : [pattern];
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return inputArray.some(input => {
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return patternArray.every(pattern => {
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const regexp = makeRegexp(pattern, options);
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const matches = regexp.test(input);
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return regexp.negated ? !matches : matches;
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});
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});
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};
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