A linguagem OPUS e o OpenBASE
Acesso aos Bancos de Dados
Arquivos externos
Variáveis e expressões OPUS
Estruturas OPUS
Operadores OPUS
Programas OPUS
Compilação de programas OPUS
Controle do ambiente OPUS
$ARCHIVES
$CLIENT
$COLOR
$CRYPT
$DATE
$DIRINC
$DIRLIB
$FILES
$FLOAT
$FLOATFUN
$GETS
$LENTMP
$LIBLOCK
$LIBRARY
$LIBSQLI
$NOBOX
$NOCLEAR
$NOCOMP
$NODATABASE
$NODUP
$NOEXEC
$NOGET
$NOINIT
$NOLIB
$NOLINK
$NOREADVAR
$NOSCREEN
$NOTERM
$PARASP
$SAVEC
$SCREEN
$SSCREEN
$TMP
$TESTITEM
$VARPAR
$WARN
Comandos da linguagem OPUS
#DEFINE
#IFDEF
#IFNDEF
#INCLUDE
#UNDEF
++ | INCR
--| DECR
?
??
@ ...
@ ... BOX ...
@ ... CLEAR ...
@ ... GET ...
@... PROMPT ...
@ ... SAY ...
@ ... TO ...
ACCEPT
APPEND
BEEP
CALL
CANCEL
CC DECL
CC EXTERN
CC INCLUDE
CC PROC
CHANGE
CLEAR
CLEAR MESSAGE
CLOSE FILE
CONTINUE
DATABASE
DATAJOIN
DECLARE
DELETE
DELETE FILE
DO
DO CASE
DO WHILE
DYNAMIC
EDIT
EJECT
EMPTY
EXIT
EXTERNAL
FILEADD
FILECOPY
FILESEP
FIND
FOR ... NEXT
FUNCTION
GO
IF ... ENDIF
INPUT
INSERT
KEYBOARD
LOCATE
LOCK
LOOP
MENU TO
MESSAGE
MODIFY
NANOSLEEP
PARAMETERS
POINTER
PRIVATE
PROCEDURE
PROGRAM
PUBLIC
PUTENV
QUERY
QUIT
READ
REINDEX
REPLACE
REPORT
RESTORE
RETURN
REVERSE
RUN
SAVE
SEEK
SELECT
SKIP
SLEEP
SORT
START
STATIC
STORE
TEXT
UNDO
UNLOCK
USE
WAIT
ZAP
Comandos SET e suas opções
SET Alarm | Bell
SET Align
SET Attribute
SET Break
SET Cancel
SET Century
SET CenturyWindow
SET Chaincount
SET Clear
SET Color
SET Conf
SET Confirm
SET Connection
SET Cursor
SET Cursorpos
SET Decimals
SET Deleted
SET Delimiters
SET Device
SET Divdec
SET Edit
SET Editkey
SET Erase
SET Errno
SET Exact
SET Ext
SET Fkeys
SET Fmodify
SET Graphic
SET Hscroll
SET Inichoice
SET Intensity
SET Jump
SET Key
SET Keyord
SET Levelerr
SET Linchoice
SET Linebreak
SET Memotab
SET Message
SET Messlen
SET Nographic
SET Nolog
SET Notimestamp
SET Nowait
SET Onlylog
SET Open
SET Openerr
SET Optread
SET Order
SET Out
SET Parasp
SET Pf
SET Phonend
SET Phonets
SET Phonopt
SET Point
SET Ppid
SET Print
SET Printer
SET Prompt
SET Real
SET Reverse
SET Roll
SET Scroll
SET Sigint
SET Signore
SET Sigquit
SET Sigusr1
SET Sscreen
SET Stoplen
SET Strlerr
SET Tab
SET Timeout
SET Trace
SET Truncate
SET Update
SET Void
SET Xterm
