Syntax

Identifiers

Identifiers are names used for variables, constants, functions, and others. They must start with a letter or underscore, followed by any combination of letters, numbers, or underscores.

Examples:

• myVariable
• _privateVar
• counter123

Keywords

The following words are reserved and cannot be used as identifiers:

General keywords

Type Keywords

Literals

Number Literals

Numeric values support integers and floating-point numbers.

Examples:

• 42
• 3.14
• 0.001
• -17

String Literals

Strings are enclosed in double quotes and support escape sequences.

Examples:

• "Hello, world!"
• "Line 1\nLine 2"
• "Tab\tseparated"

Boolean Literals

Boolean values can be either true or false.

Examples:

• true
• false

Null Literal

The null keyword represents the absence of a value.

Array Literals

Arrays are declared with square brackets.

Examples:

• []
• [1, 2, 3]
• ["hello", "world"]

Comments

Single-line comments start with //.

• // This is a comment
• printf("Hello\n") // Inline comment

Operators

Arithmetic Operators

Assignment Operators

Comparison Operators

Logical Operators

Special Operators

Statements

Expression Statements

Any expression can be a statement:

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printf("Hello\n")
x + 1

Block Statements

Statements can be grouped and scoped with braces:

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{
  var x number = 1
  printf("%g\n", x)
}

Code Structure

DLiteScript programs are sequences of statements. Statements are typically separated by newlines, though multiple statements can appear on the same line. Braces {} create new scopes for variables and constants.

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var x number = 10
printf("%g\n", x)

{
  var y number = 20
  printf("%g\n", y)
}