A Recital Primer

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A Recital Primer

Lexical Structure

Keywords

Lines and Indentation

Comments

Single line comments

// allows comment lines to be inserted in programs to enhance their readability and maintainability. The // command allows all characters following it on a line, to be treated as a comment and to be ignored by Recital. The // command can be placed anywhere on a line, even following an executable command.

// declare variables
private x,y,z

Multi line comments

/* and */ denote block comments. These can be inserted in programs to enhance their readability and maintainability.

The /* denotes the start of the comment block, the */ the end of the comment block.

All characters between the two comment block delimiters are treated as comments and ignored by Recital.

/* the following lines
     are multi
     line comments */
private x,y,z

Data Types

Identifiers

Operators

Expressions

Statements

Control Flow

Looping

Macros

Shell command substitution

Functions

Defining a Function

Calling a Function

Classes

Libraries