sdecl

sdecl is a small declarative language for tree-shaped data.

It is designed to be:

• compact
• fast
• easy to parse
• convenient for UI markup, config files, and build descriptions

The core of the language only provides an AST. Attribute values are stored as String, and their meaning is defined by the code that consumes the parsed tree.

Syntax

App @root {
    title: "Hello"
    width: 800

    Button @ok {
        text: "OK"
    }

    {
        visible: true
    }
}

Rules:

• Type { ... } creates a node with explicit type
• @name { ... } creates a node with implicit Node type
• { ... } creates a node with implicit type and no name
• attr: value defines an attribute
• quoted strings keep spaces
• unquoted values are parsed as raw strings without spaces

Reserved attribute names:

• type
• name
• children

Haxe API

import s.decl.Node;

var root = Node.parse(source);
var fileRoot = Node.parseFile("example.sdecl");

Each parsed node contains:

• type:String
• name:String
• attributes:Map<String, String>
• children:Array<Node>

Development

Run tests:

haxe build_tests.hxml