Reference: PLT Scheme

1`` | Language Model
2`` | Syntactic Forms
3`` | Datatypes
4`` | Structures
5`` | Classes and Objects
6`` | Units
7`` | Contracts
8`` | Pattern Matching
9`` | Control Flow
10`` | Concurrency
11`` | Macros
12`` | Input and Output
13`` | Reflection and Security
14`` | Operating System
15`` | Memory Management
16`` | Running PLT Scheme
| Bibliography
| Index

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#%expression

Version: 4.0.2
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#### 2.4`` Expression Wrapper: #%expression

(#%expression expr)

Produces the same result as expr. The only use of #%expression is to force the parsing of a form as an expression.

Examples:
> (#%expression (+ 1 2))
3
> (#%expression (define x 10))
eval:4:0: define: not allowed in an expression context in:
(define x 10)

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