Definitions

The following words, acronyms and abbreviations are referred to in this document.

Term	Definition
OVM	Ozterm Virtual Machine - Software library that provides a compiler, and runtime engine for a 3GL / 4GL scripting language based heavily on the Ozterm command language.
3GL	3rd Generation Langauge - Term that covers computer programming languages such a C, C++ and Pascal.
4GL	4^th Generation Language – Term that covers computer programming languages that have commands that are aware of the meaning of the data they operate on. Ozterm provides some 4GL commands for manipulating network elements.
LHS	Left Hand Side. Used to indicate the left hand side of an expression. In the line @set a = 1 + 2 the letter ‘a’ is the LHS.
RHS	Right Hand Side. Used to indicate the right hand side of an expression. In the line @set a = 1 + 2 the expression 1+ 2 is the RHS.
Stdin	The default input stream provided by most operating systems to C / C++ applications.
Stdout	The default output stream provided by most operating systems to C / C++ applications.

Category Text	Means	Example ( Keyword in CAPITALS )
Command.	The keyword is a command.	@COMMENT("Hello World")
Integer Function.	The keyword is a function that returns an integer value.	@set number = RANDOM(100)
Boolean Function.	The keyword is a function that returns a boolean value.	@if CHECKSTATE() then
String Function.	The keyword is a function that returns a string value.	@set alphabet = CONCAT("abcdefghijkl","mnopqrstuvwxyz")
Operator.	The keyword is an operator (It is used within an expression).	@set done = gotachar OR timedout
Reserved Word.	The keyword has special meaning to one or more commands or functions.	@set whichcol = strpos(fullpath,".",LAST)

Parameter Text	Means	Example
None	The keyword takes no parameters. Note that functions still require the () after the function name when used.	@logon, argcount()
Label name	The name of an @label label-name must be supplied without quotes. Some commands that require label names do not use ().	@label fred @check(on,fred) @goto fred
Integer expression	The parameter can be an expression that returns an integer value.	random(100)
Boolean expression	The parameter can be an expression that returns a boolean value.	@check(on)
String expression	The parameter can be an expression that returns a string value.	@setdest("EDSX")
Integer variable	The parameter must be the name of a simple integer variable previously defined with the @integer command. The value stored in the integer variable may be changed by the command or function.	@integer a1 getdate(a1)
Boolean variable	The parameter must be the name of a simple boolean variable previously defined with the @boolean command. The value stored in the boolean variable may be changed by the command or function.
String variable	The parameter must be the name of a simple string variable previously defined with the @string command. The value stored in the string variable may be changed by the command or function.	getdate
0 or more expressions	0 or more expressions returning any type separated by commas can be given. When more than 1 parameter is supplied subsequent parameters do not need to be of the same type.	@comment @comment(1,’a’,on)
0 or more expressions of previous type	0 or more expressions all returning the same type as the previous parameters can be given. When more than 1 parameter is given they must all return the same type.	@string fred=’jane’ inset(fred,’mary’,’jane’)
‘keyword’	The specified keyword without quotes must be given.	@draw(box,1,1,5,5)

References

Contents

DCS

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