sdlang-d 0.9.2

SDLang-D

An SDL (Simple Declarative Language) library for D.

Officially supported compiler versions are shown in .travis.yml.

SDL is a data language like JSON, XML or YAML, except it's:

• Less verbose than JSON and XML.
• Type-aware.
• Easier to learn and read than YAML.

This is what SDL looks like (some of these examples, and more, are from the SDL site):

// A couple basic values
first "Joe"
last "Coder"

// Supports values, named attributes, and various data types
numbers 12 53 2 635
names "Sally" "Frank N. Stein"
pets chihuahua="small" dalmation="hyper" mastiff="big"

mixed 34.7f "Tim" somedate=2010/08/14

// Supports child tags
folder "myFiles" color="yellow" protection=on {
    folder "my images" {
        file "myHouse.jpg" color=true date=2005/11/05
        file "myCar.jpg" color=false date=2002/01/05
    }
    folder "my documents" {
        document "resume.pdf"
    }
}

Tags are of this form:

[tag name] [values] [attributes] [children]

Tag and attribute names can optionally include a namespace prefix (ie, `namespace:name`). All parts are optional, the only exception being that an anonymous (ie, no name) tag must have at least one value.

Also:

• Tags are separated by either newline or semicolon.
• Whitespace and indentation is not significant (other than newlines).
• The line-continuation operator is `\` (backslash). This can be used to split a tag across multiple lines.
• Line comments start with either `#, // or --`.
• Block comments start with `/* and end with */`.
• All the data types and syntax details are described here.

Differences from original Java implementation

• API is completely redesigned for D.
• License is zlib/libpng, not LGPL. (No source from the Java or Ruby implementations was used or looked at.)
• Anonymous tags are named `"" (empty string) not "content"`.
• Dates with unknown or invalid time zones use a special type indicating "unknown time zone" (`DateTimeFracUnknownZone`) instead of assuming GMT.

Documentation

• How to use SDLang-D's DOM mode (Tutorial / API Overview)
• API Reference
• Changelog
• Included tools and scripts
• License (zlib/libpng)