Turbo Basic

TypographyThe body of this manual is printed in a normal typeface; other typefaces havespecial meaning .. Alternate type is used for example programs and screen output; for example:Dir mask:Italic type emphasizes an important concept or word. In particular, italics areused in syntax descriptions to indicate areas within commands to be filled in withapplication-specific information; for example:REG register, valueUPPERCASE text denotes part of a BASIC command that must be suppliedverbatim; for example:RESUME NEXTCertain characters have special meaning when they appear in syntax descriptions.Brackets ([ ]) mean .that the enclosed information is optional. For example:OPEN fi 1 espec AS [I] fi 7 enummeans that you can include a number sign (#) before the file number or leave itout, at your option. Therefore, both of the follOwing are legal:OPEN "cust.dta" AS 1OPEN "cust.dta" AS #1Braces ({ }) indicate a choice of two or more options, one of which mustbe used.The options are separated by vertical bars (I). For example:KEY {ONIOFF}means that both KEY ON and KEY OFF are valid statements, and that KEY byitself is not.Ellipses ( ..• ) indicate. that part of a command can be repeated as many times asnecessary. For example:READ variable [, variable] •••means that multiple variables, separated by commas, can be processed by a singleREAD statement:READ a$READ as, b$, a,b, cIntroduction 3