SRFI:s
From Gambit wiki
SRFI
Scheme Request For Implementation. See http://srfi.schemers.org/.
Gambit provides the following SRFIs:
0: Feature-based conditional expansion construct (builtin)
1: List Library
2: AND-LET*: an AND with local bindings, a guarded LET* special form
4: Homogeneous numeric vector datatypes (builtin)
5: A compatible let form with signatures and rest arguments
6: Basic String Ports (builtin)
8: receive: Binding to multiple values (builtin)
9: Defining Record Types (builtin)
13: String Libraries
16: Syntax for procedures of variable arity (builtin)
18: Multithreading support (builtin)
21: Real-time multithreading support (builtin)
22: Running Scheme Scripts on Unix (builtin)
23: Error reporting mechanism (builtin)
26: Notation for Specializing Parameters without Currying
27: Sources of Random Bits (builtin)
30: Nested Multi-line Comments (builtin)
31: A special form rec for recursive evaluation
33: Integer Bitwise-operation Library
39: Parameter objects (builtin)
41: Streams
45: Primitives for Expressing Iterative Lazy Algorithms
48: Intermediate Format Strings
62: S-expression comments (builtin)
64: A Scheme API for test suites (incomplete implementation)
88: Keyword objects (builtin)
111: Boxes (builtin)
124: Ephemerons
132: Sort Libraries
151: Bitwise Operations
158: Generators and Accumulators
179: Nonempty Intervals and Generalized Arrays (Updated)
193: Command line (builtin)