Igor Syntax

File Format

Igor Language is a text code stored in a plain text utf8 files. By convention Igor file should (but not must) have .igor extension.

Whitespaces are used to separate tokens. Whitespaces are allowed between any two tokens but required only to separate keywords and identifiers.

Any non-empty combination of the following elements is a valid whitespace:

Tab (\t)

Linebreaks (\r, \n)

Spaces

Comments

All whitespaces are indistinuguishable. Indentation is not enforced.

C-style comments are supported:

// Single-line comment

/*
    Multi-line comment
*/

Comments are treated as regular whitespaces. Their content is ignored by compiler.

There’s a special syntax for documentation comments (annotations):

# Single-line annotation

<#
    Multi-line annotation
#>

Unlike normal comments, documentation comments are used to generate annotations, comments and documentation summaries for the target code.

Identifier is a non-empty sequence of latin letters, decimal digits and underscore character, starting from the letter or underscore character.

Identifiers are case-sensitive.

There’re two types of numeric literals: integers and floats. The conventional notation is used.

Examples:

42
-10.5
1.5e7

Strings are enclosed in double quotes (").

Example:

"This is a string"
"" // empty string