Overview
A Dart package that provides a StringScanner class for efficiently parsing strings by applying a sequence of patterns. It maintains a position within the input string and allows incremental matching, making it ideal for building custom parsers or processing structured text. The scanner supports lookahead, skipping whitespace, and pattern-based extraction, enabling clean and readable parsing logic. Designed for use in compilers, configuration file readers, and domain-specific language (DSL) implementations, it offers a lightweight alternative to full regex engines when precise control is needed.
Use cases
- Parsing configuration files
- Building DSLs
- Tokenizing input streams
- Implementing custom syntax parsers
- Processing structured text data
Key features
- Incremental string parsing
- Pattern-based matching
- Lookahead capabilities
- Whitespace skipping
- Position tracking
- Simple API for custom parsers
Suitable for
- Developers building parsers
- Those working with structured text formats
- Projects requiring fine-grained text processing
- Compiler or interpreter authors
- Applications needing efficient tokenization
Considerations
- Not suitable for complex regex patterns
- Requires manual pattern definition
- Best for sequential parsing workflows
- Limited built-in error handling
- Performance depends on pattern complexity