sci(1)
Scheme interpreter
SYNTAX
sci
[ option ]
DESCRIPTION
The
sci
command 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, scc.
OPTIONS
These options are accepted by
sci.
- -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 sci. All files
associated with the interpreter are found in the
directory .../schemetoc/scrt.
