jBC Run time, Running jBC programs. jBC Error Handling, Handling error conditions in jBC programs. jCL, jBASE command language (Proc) reference manual. CATALOG Command. .. DECATALOG and DELETE-CATALOG Commands .. DECRYPT. Quick Navigation. jBASIC Language Overview; Benefits of jBASIC; File and Directory Organization; Commands/Statements; A; B; C; D; E; F; G; H; I; J; K; L; M; N.
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As the O option Wn set warning level to 0, 1, 2 or 3, see below Ipath path for include files V allow persistent variables in subroutines Qq specifies that the source code contains embedded SQL statements, see below If the record key selection is omitted, BASIC will use any preceding select list.
Checks that an expression consists entirely of control characters. LEN function Returns the character length of an expression. WEOF statement Writes an end of file mark on an attached tape device.
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Declares a symbol equivalent to a literal, variable or simple expression. Returns the length of the expression as the number of bytes rather than the number of characters. SWAP function Sub-string replacement.
Transfers program execution to a label nbase upon a calculation. Initializes all unnamed common variables to a value of zero. Using temp file s: LOOP statement Defines the start of a loop construct.
NUM function Returns Boolean true if the supplied value is numeric. Add the following data into the corresponding row. NOT function Inverts the Boolean value of an expression. Creates a select list of elements in a specified variable. This is the default optimization level. The name can include absolute or relative path information. Allow the hash method to be overridden when resizing the file. NOTS function Returns a dynamic array of the logical complement of the elements of a dynamic array.
Converts all uppercase characters in an expression to lowercase. Each warning level will produce a different set of warning messages.
jBASE BASIC PROGRAMMERS REFERENCE GUIDE
Create both data and dictionary file: It can be invoked as your login shell by using the normal system administration software supplied fommands the platform. If Account Name is not specified, the last element in Account Directory is used as the account name. Not finding what you’re looking for?
NULL statement Does nothing. Checks that an expression consists jbae of numeric characters. The default action is to exit the shell once the processing of the input file has been completed.
INTRODUCTION TO jBASE
Returns the mathematical constant e to the specified power. Reads a single character from the input buffer and returns it. Declares a list of variables and matrices that can be shared among programs.
The more primitive features seen on some older platforms such as the “dot” command stacker have been replaced with easier to use and jbasr functional equivalents. Determines the value of the specified environment variable.
jBASE — jBASE BASIC PROGRAMMERS REFERENCE GUIDE
The value is set to NO by default. The account’s location will be located and piped to jbackup. Turns on or off the echoing of characters typed at the keyboard. Calls can be made to OS functions and vice versa. Reads a field from a record in an opened file into commandx variable. Some Operating Systems require large file support to jbse enabled when the file system is created.
Returns the value of the natural logarithm of a supplied expression.
Allows processing to be suspended until an external event occurs. Removes leading spaces and tabs from elements of a dynamic array. Specifies which shell emulation to use when executing jsh. Returns the command used to invoke a program and the arguments it was given. Checks that an expression consists entirely of alphabetic characters.
Turns off buffering for a file opened for sequential processing.
The comkands levels are: The jED editor is used in two different modes; command mode and edit mode, with edit being the default mode and the current mode displayed at the top of the screen. No code optimizations are performed and debug information is produced for both the C debugger and the jBASE debugger.
Create hashed file dictionary only: Replace substring in an expression with another substring.