pillarjs/path-to-regexp
Path To Regexp
path-to-regexp is an HTTP route matcher and regular expression generator that transforms parameterized path strings into regular expressions for matching web addresses. It functions as a URL route parser and pattern compiler, enabling the conversion of human-readable path templates into functional expressions for routing.
The project provides capabilities for extracting named parameters and wildcards from URLs based on defined path patterns. It also handles the reverse process of dynamic path generation, transforming key-value pairs into formatted path strings by injecting values into defined parameter placeholders.
The library covers a broader range of routing utilities, including token-based path parsing and the ability to define custom parameter delimiters. It also supports anchor-controlled matching to determine if a regular expression must match from the beginning or end of an input string.
Features
- Route Pattern Matching - Provides the core mechanism for mapping network paths to handlers using regular expression patterns.
- Regex-Based Route Matching - Transforms parameterized path strings into regular expressions for matching web addresses and extracting capture groups.
- Route-Based Generators - Generates optimized regular expression patterns from human-readable path strings for routing purposes.
- Token-Based URL Matchers - Matches dynamic URL segments by replacing named tokens and regular expressions inside route definitions.
- URL Path Parameterization - Creates dynamic URL paths by injecting specific values into placeholders within parameterized templates.
- String Tokenization - Breaks path strings into a structured sequence of tokens for the purpose of matching or compilation.
- Route Tokenization - Deconstructs path strings into structured tokens to separate literal segments from dynamic parameters.
- Token Set Matching - Transforms a path string into a sequence of tokens to enable regular expression compilation.
- URL Route Mapping - Maps flexible URL patterns to specific handlers or logic within a web application.
- Route Parameter Parsers - Provides utilities for extracting and validating dynamic URL segments from path strings.
- Route Path Generators - Generates valid URL paths by injecting provided key-value pairs into parameterized path templates.
- Route Pattern Compilers - Transforms path strings containing parameters and wildcards into regular expressions for URL matching.
- Route Path Generators - Programmatically derives URL paths by injecting values into parameterized templates.
- URL Parameter Extraction - Matches strings against path patterns to extract named segments and wildcards as structured objects.
- Template Compilers - Transforms parameterized path templates into valid URL strings by injecting specific key-value pairs.
- Bidirectional Mappings - Implements bidirectional mappings allowing conversion between URL strings and their internal tokenized representations.
- Path Parameter Converters - Converts parameterized path strings into regular expressions to handle and match URL route parameters.
- Regex and Pattern Matching - Converts path strings into regular expressions.
