googlei18n/libphonenumber
Libphonenumber
This project is an international phone number library providing tools for parsing, formatting, and validating phone numbers across multiple programming languages. It functions as a parsing utility, a formatting engine, and a validation tool to ensure phone number strings are transformed into structured objects and standardized display formats.
The library includes a telecom metadata resolver to retrieve geographical, carrier, and timezone information associated with specific number ranges. It differentiates itself by identifying phone number types, such as mobile, fixed-line, or VoIP, and calculating similarity between different number representations to determine if they refer to the same entity.
The software covers a broad range of processing capabilities, including the extraction of phone numbers from unstructured text and the generation of valid example numbers for testing. It also provides mechanisms for real-time input formatting during user data entry and the normalization of contact data to identify duplicates.
Features
- International Phone Number Libraries - Provides a comprehensive library for parsing, formatting, and validating international phone numbers across multiple languages.
- Phone Number Parsing & Formatting - Provides a comprehensive engine to parse and format international phone numbers into structured objects and standardized display formats.
- Line Type Identification - Distinguishes between phone number categories including mobile, fixed-line, toll-free, and VoIP based on regional patterns.
- Parsing Utilities - Normalizes phone number strings into structured objects by identifying country codes and regional patterns.
- Phone Validation - Checks if a phone number is mathematically possible and conforms to regional numbering plans.
- Formatting Engines - Implements an engine that transforms raw phone number strings into standardized display formats.
- Phone Number Parsing - Transforms unstructured phone number strings into structured data objects using country codes and regional rules.
- Phone Number Validation - Provides metadata-driven validation to verify phone number lengths and prefixes against regional numbering plans.
- Regional Parsing Logics - Determines the numbering rules to apply by mapping the country calling code to a specific regional metadata set.
- Phone Number Formatting - Applies specific spacing and punctuation rules based on national and international display conventions.
- Phone Number Validators - Converts raw phone number strings into standardized national or international display formats.
- Phone Number Research - Retrieves carrier, geographical, and timezone information associated with specific phone numbers.
- Contact Data Normalization - Standardizes phone numbers across global datasets to ensure uniformity and identify duplicate entries.
- Regular Expression Libraries - Employs complex regular expression patterns to identify and extract phone numbers from unstructured text.
- Phone Number Extraction - Scans and identifies valid phone numbers embedded within larger bodies of unstructured text.
- Cross-Language Implementations - Maintains synchronized logic and data across Java, C++, and JavaScript for consistent global behavior.
- Telecom Carrier Lookups - Uses prefix-based trie structures to optimize the search and matching of telecommunications carriers.
- Real-time Input Formatting - Implements real-time visual formatting of phone numbers as users enter digits into input fields.
- Data Formats - Library for parsing and formatting international phone numbers.
- Android Development Utilities - Library for parsing and validating international phone numbers.
