Bywater Software Announces
the First Public Release of


Bywater BASIC Interpreter/Shell, version 1.10
---------------------------------------------

Copyright (c) 1992, Ted A. Campbell
for bwBASIC version 1.10, 1 November 1992



DESCRIPTION:

The Bywater BASIC Interpreter (bwBASIC) implements a large
superset of the ANSI Standard for Minimal BASIC (X3.60-1978)
implemented in ANSI C, and offers a simple interactive environ-
ment including some shell program facilities as an extension of
BASIC. The interpreter has been compiled successfully on a range
of ANSI C compilers on varying platforms with no alterations
to source code necessary.


OBTAINING THE SOURCE CODE:

The source code for bwBASIC 1.10 will be posted to network news
groups and is available immediately by anonymous ftp. To obtain
the source code, ftp to site duke.cs.duke.edu, cd to /pub/bywater
and get the appropriate files. These are as follows:

bwb110.zipSource code in ZIP compressed format, with text lines
concluded with CR-LF. This is the appropriate version
for DOS-based computers.

bwb110.tar.ZTar'd and compressed source code with text lines con-
cluded with LF only. This is the appropriate version
for Unix-based computers.


COMMUNICATIONS:

Ted A. Campbell
Bywater Software
P.O. Box 4023
Duke Station
Durham, NC 27706
USA

email: [email protected]


A LIST OF BASIC COMMANDS AND FUNCTIONS IMPLEMENTED in bwBASIC 1.10:

ABS( number )
ASC( string$ )
ATN( number )
CHAIN [MERGE] file-name [, line-number] [, ALL]
CHR$( number )
CINT( number )
CLEAR
CLOSE [[#]file-number]...
COMMON variable [, variable...]
COS( number )
CSNG( number )
CVD( string$ )
CVI( string$ )
CVS( string$ )
DATA constant[,constant]...
DATE$
DEF FNname(arg...)] = expression
DEFDBL letter[-letter](, letter[-letter])...
DEFINT letter[-letter](, letter[-letter])...
DEFSNG letter[-letter](, letter[-letter])...
DEFSTR letter[-letter](, letter[-letter])...
DELETE line[-line]
DIM variable(elements...)[variable(elements...)]...
END
ENVIRON variable-string = string
ENVIRON$( variable-string )
EOF( device-number )
ERASE variable[, variable]...
ERL
ERR
ERROR number
EXP( number )
FIELD [#] device-number, number AS string-variable [, number AS string-variable...]
FOR counter = start TO finish [STEP increment]
GET [#] device-number [, record-number]
GOSUB line
GOTO line
HEX$( number )
IF expression THEN statement [ELSE statement]
INPUT [# device-number]|[;]["prompt string";]list of variables
INSTR( [start-position,] string-searched$, string-pattern$ )
INT( number )
KILL file-name
LEFT$( string$, number-of-spaces )
LEN( string$ )
LET variable = expression
LINE INPUT [[#] device-number,]["prompt string";] string-variable$
LIST line[-line]
LOAD file-name
LOC( device-number )
LOF( device-number )
LOG( number )
LSET string-variable$ = expression
MERGE file-name
MID$( string$, start-position-in-string[, number-of-spaces ] )
MKD$( double-value# )
MKI$( integer-value% )
MKS$( single-value! )
NAME old-file-name AS new-file-name
NEW
NEXT counter
OCT$( number )
ON variable GOTO|GOSUB line[,line,line,...]
ON ERROR GOSUB line
OPEN O|I|R, [#]device-number, file-name [,record length]
file-name FOR INPUT|OUTPUT|APPEND AS [#]device-number [LEN = record-length]
OPTION BASE number
POS
PRINT [# device-number,][USING format-string$;] expressions...
PUT [#] device-number [, record-number]
RANDOMIZE number
READ variable[, variable]...
REM string
RESTORE line
RETURN
RIGHT$( string$, number-of-spaces )
RND( number )
RSET string-variable$ = expression
RUN [line][file-name]
SAVE file-name
SGN( number )
SIN( number )
SPACE$( number )
SPC( number )
SQR( number )
STOP
STR$( number )
STRING$( number, ascii-value|string$ )
SWAP variable, variable
SYSTEM
TAB( number )
TAN( number )
TIME$
TIMER
TROFF
TRON
VAL( string$ )
WEND
WHILE expression
WIDTH [# device-number,] number
WRITE [# device-number,] element [, element ]....

If DIRECTORY_CMDS is set to TRUE when the program is compiled,
then the following commands will be available:

CHDIR pathname
MKDIR pathname
RMDIR pathname