► |  | Syntax: Meta-Programming Helpers

1 | Syntax Object Helpers
2 | Module-Processing Helpers
3 | Macro Transformer Helpers
4 | Reader Helpers
5 | Non-Module Compilation And Expansion
6 | Trusting Standard Recertifying Transformers
7 | Attaching Documentation to Exports
8 | Parsing and classifying syntax
| Index

▼ | 8 | Parsing and classifying syntax

8.1 | Quick Start
8.2 | Parsing and classifying syntax
8.3 | Syntax patterns
8.4 | Literal sets and Conventions
8.5 | Library syntax classes and literal sets

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### 8`` Parsing and classifying syntax

The syntax/parse library provides a framework for describing and parsing syntax. Using syntax/parse, macro writers can define new syntactic categories, specify their legal syntax, and use them to write clear, concise, and robust macros. The library also provides a pattern-matching form, syntax-parse, which offers many improvements over syntax-case.

( require syntax/parse )

8.1 Quick Start
8.2 Parsing and classifying syntax
8.2.1 Parsing syntax
8.2.2 Classifying syntax
8.2.3 Pattern directives
8.2.4 Pattern variables and attributes
8.2.5 Inspection tools
8.3 Syntax patterns
8.3.1 Single-term patterns
8.3.2 Head patterns
8.3.3 Ellipsis-head patterns
8.3.4 Action patterns
8.4 Literal sets and Conventions
8.5 Library syntax classes and literal sets
8.5.1 Syntax classes
8.5.2 Literal sets

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