An SDLang (Simple Declarative Language) library for D, to read and write SDLang. Both a DOM and a Pull Parser are provided.

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 original 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]

Attributes are simply values with names.

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 the first occurrence of */ (ie, they do not nest).
• Values always come before the attributes.
• All the data types and syntax details are described in the Language Guide.
• Note that, unlike C-based languages, opening curly braces must be on the same line, not the next line. Why?.

For more details on the langauge, see the Language Guide.

• License is zlib/libpng, not LGPL. (No source from the Java or Ruby implementations was used or looked at. The libraries were used to test compatibility, but the actual source code was not viewed.)
• API is completely redesigned for D.
• 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.

• Language Guide
• How to use SDLang-D (Tutorial / DOM API Overview)
• Pull Parse SDLang
• API Reference
• Changelog
• SDLang Wiki
• SDLang-D FAQ
• SDLang Language FAQ
• Included tools and scripts
• License (zlib/libpng)
• Old Official SDL Site [mirror]