tessl/npm-picomatch

Blazing fast and accurate glob matcher written in JavaScript, with no dependencies and full support for standard and extended Bash glob features, including braces, extglobs, POSIX brackets, and regular expressions.

1.45x

Overview

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Files

Pattern Validator

Name: tessl/npm-picomatch
Rating: 0.83 (1 reviews)
Author: tessl

Build a pattern validation utility that converts glob patterns into regular expressions and validates file paths against them.

Requirements

Create a module that provides functionality to:

Convert glob patterns to regular expressions
Validate whether file paths match the compiled patterns
Support case-insensitive pattern matching
Handle multiple patterns efficiently

The module should expose a function that takes a glob pattern (or array of patterns) and returns a validator object with a test method that checks if a given path matches the pattern.

Expected Behavior

Basic Pattern Conversion

Convert simple wildcard patterns to regex @test

// Example: Pattern "*.js" should match "file.js" but not "file.ts"
const validator = createValidator('*.js');
validator.test('file.js') === true;
validator.test('file.ts') === false;

Globstar Pattern Support

Handle recursive directory patterns with globstar @test

// Example: Pattern "**/*.js" should match files in any nested directory
const validator = createValidator('**/*.js');
validator.test('src/utils/helper.js') === true;
validator.test('lib/index.js') === true;
validator.test('readme.md') === false;

Case-Insensitive Matching

Support case-insensitive pattern matching when configured @test

// Example: With nocase option, "*.JS" should match "file.js"
const validator = createValidator('*.JS', { nocase: true });
validator.test('file.js') === true;
validator.test('file.JS') === true;

Implementation

@generates

API

/**
 * Creates a validator from one or more glob patterns
 * @param {string|string[]} patterns - Glob pattern(s) to compile
 * @param {object} options - Configuration options (e.g., { nocase: true })
 * @returns {object} Validator object with test method
 */
function createValidator(patterns, options) {
  // Returns { test: (path) => boolean }
}

module.exports = { createValidator };

Dependencies { .dependencies }

picomatch { .dependency }

Provides glob pattern compilation and matching support.

@satisfied-by

Install with Tessl CLI

npx tessl i tessl/npm-picomatch