Difference between revisions of "Recital Operators"
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===Comparison Operators=== | ===Comparison Operators=== | ||
| + | The following Comparison Operators are supported in Recital: | ||
| + | |||
| + | |||
| + | {| class="wikitable" | ||
| + | !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=== | ===Increment and Decrement Operators=== | ||
===String Concatenation Operator=== | ===String Concatenation Operator=== | ||
| Line 84: | Line 113: | ||
</code> | </code> | ||
| − | ===String Search | + | ===String Search Operators=== |
| + | The following String Search Operators are supported in Recital: | ||
| + | |||
| + | |||
| + | {| class="wikitable" | ||
| + | !Operator||Operation | ||
| + | |- | ||
| + | |$||Substring is Contained In | ||
| + | |- | ||
| + | ||||Contains Substring | ||
| + | |- | ||
| + | |} | ||
| + | |||
| + | |||
===String Substitution Operator=== | ===String Substitution Operator=== | ||
===Execution Operator=== | ===Execution Operator=== | ||
===Concatenation of Strings and Other Data Types=== | ===Concatenation of Strings and Other Data Types=== | ||
===Summary=== | ===Summary=== | ||
Revision as of 13:25, 6 November 2009
Contents
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 |
