Recital Operators

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Recital Operators

Assignment Operators

Values are assigned to memory variables using the the equals = operator or the inline assignment := operator.

cVAR1 = 'newer value'
cVAR1 := 'newest value'

Note that the store command can also be used to assign valuesand can operate on more than one memory variable in a single command.

store 'new value' to cVAR1, cVAR2

Arithmetic Operators

Recital supports the use of the following Arithmetic Operators:


Operator Operation Precedence
() Parentheses 1
** Exponentiation 2
* Multiplication 3
/ Division 3
% Modulus/Remainder 3
+ Addition 4
- Subtraction 4


When dealing with Date data types, the operators work as follows:


Operator Operation
+ <expD> + <expN> returns a date plus the number of days specified in <expN>.
- Returns the interval between the two dates as a number of days.


Example

? 2*3^2
        18
? 2*25%7
      1.00
? date() + 30 - date()
        30


Comparison Operators

The following Comparison Operators are supported in Recital:


Operator Operation
= Equal To
== Exactly Equal To / Matches Pattern
<> Not Equal To
!= Not Equal To
# Not Equal To
> Greater Than
>= Greater Than or Equal To
< Less Than
<= Less Than or Equal To


The Comparison Operators are always evaluated from left to right.

Increment and Decrement Operators

String Concatenation Operator

When dealing with string data types, the + and - operators perform the following concatenation operations:

Operator Operation
+ Concatenate the right hand string to the end of the left hand string.
- Concatenate the right hand string to the end of the left hand string after trimming the left hand string of trailing spaces.

Example

? [Hello] + [ ] + [ World]
Hello World
? [Hello     ] - [ World]
Hello World

String Search Operators

The following String Search Operators are supported in Recital:


Operator Operation
$ Substring is Contained In
| Contains Substring


String Substitution Operator

Execution Operator

Concatenation of Strings and Other Data Types

Summary