NAME¶
s2ci - Scheme interpreter
SYNTAX¶
s2ci [ option ]
DESCRIPTION¶
The
s2ci command (previously known as
sci) invokes a Scheme
interpreter. The language accepted by this interpreter is that defined in the
essential portions of the
Revised4 Report on the Algorithmic Language
Scheme, with minor constraints and some additions. The Scheme interpreter
is written in Scheme which has then been compiled using the Scheme-to-C
compiler,
s2cc.
OPTIONS¶
These options are accepted by
s2ci.
- -e
- Echo text read from the standard input file on the standard output
file.
- -emacs
- Scheme interpreter is controlled by GNU emacs.
- -nh
- Do not print the interpreter version header on the standard output
file.
- -np
- Do not prompt for input from the standard input file on the standard
output file.
- -q
- Do not print the result of each expression evaluation.
- -scgc statflag
- Enables garbage collection statistics. If set to 1, then garbage
collection statistics will be printed. The default is 0, that will result
in no statistics.
- -sch heap
- Specifies the initial size of the heap in megabytes. The default heap size
is 4 MB. The maximum heap size allowed is 1000 MB.
- -scl percent
- Specifies the percent of the heap allocated after a generational garbage
collection that will force a full collection. The default is 40%.
- -scm main
- Specifies the function that should be used instead of the predefined
"main". The function name must be entered in the correct case,
i.e. letters typically upshifted.
- -scmh heap
- Specifies the maximum heap size in megabytes. The default is five times
the initial size of the heap.
ENVIRONMENT VARIABLES¶
The items controlled by
-sc.. flags can also be controlled by environment
variables. If both the flag and the environment variable are provided, then
the flag's value will be used.
- SCGCINFO
- Controls the reporting of garbage collection statistics to the standard
error file. If set to 1, then garbage collection statistics will be
printed. The default setting is 0 that will not print the statistics.
- SCHEAP
- Specifies the initial size of the heap in megabytes. The default heap size
is 4 MB. The maximum heap size allowed is 1000 MB.
- SCLIMIT
- Specifies the percent of the heap allocated after a generational garbage
collection that will force a full collection. The default is 40%.
- SCMAXHEAP
- Specifies the maximum size of the heap in megabytes. The default value is
five times the initial heap size.
FILES¶
The interpreter is one a.out file with the name
s2ci. All files
associated with the interpreter are found in the directory
.../schemetoc/scrt .
SEE ALSO¶
Harold Abelson and Gerald Jay Sussman with Julie Sussman,
Structure and
Interpretation of Computer Programs, The MIT Press.
William Clinger and Jonathan Rees (Editors),
Revised4 Report on the
Algorithmic Language Scheme, LISP Pointers, Volume IV, Number 3,
July-September 1991. PostScript for this report is included in the software
distribution.
Jerry D. Smith,
An Introduction to Scheme, Prentice Hall, Inc. Chapter
notes for using this text with Scheme->C are included in the software
distribution.
R. Kent Dybvig,
The SCHEME Programming Language, Prentice Hall, Inc.
Daniel P. Friedman and Matthias Felleisen,
The Little LISPer, MIT Press.
Joel F. Bartlett,
Scheme->C a Portable Scheme-to-C Compiler, WRL
Research Report 89/1.
Additional documentation is included in the software distribution.
s2cc(1)
http://alioth.debian.org/projects/scheme2c/