Commands: Introduction

Overview

The Commands Manual describes the verbs, functions, and variables supported by PRO/5. Each verb, function, or variable is described by syntax, functional purpose, and example. These elements are permanent features of PRO/5. For convenience, PRO/5 verbs, functions, and variables are listed alphabetically.

In the syntax descriptions, upper-case letters and punctuation must be used exactly as they appear in the example. Braces {} indicate optional items, and Italics indicate syntactical elements. The following are the common syntactical elements used in this manual.

Syntactical Elements

Parameter	Description
arglist	An argument list.
channelno	Any integer expression in the range 1 to 32767. In some cases, channel 0 is legal.
disk	A disk drive.
expr	Any numeric or string expression.
field	Used to identify a field.
fileid	Any string expression subject to the rules for file names.
flags	Options within a key segment.
index	Any positive integer expression specifying a record number (or byte) within a file.
int	Any numeric expression resulting in an integer. There may be a legal range of values, depending on where the integer is used.
keysize	Maximum length of a key in a file.
len	Length of a field.
lineno	Any integer constant in a range of 1 to 65534.
lineref	Any reference to a line number or label.
num	Any numeric expression.
numname	Any numeric variable.
numvar	Any numeric variable or array element.
offset	Offset to a field.
precis	Numeric precision for calculations.
records	Number of records to be allocated.
recsize	Size of each record in bytes.
segment	A key component that can be made up of a single field or part of a field.
string	Any string expression.
strname	Any nonsubscripted string variable.
strvar	Any string variable or subscripted string variable.
var	Any numeric variable, string variable, subscripted string variable, or single array element.
varname	Any numeric variable or nonsubscripted string variable. In specified cases, it allows an array [ALL] reference.
verifyoptions	A list of string and line numbers, optionally followed by minimum and maximum length for a string input, and minimum and maximum value for numeric input.