caton

caton (Cat's object notation) is a markup language similar to many popular markup or notation languages (e.g. JSON, YAML, and others) which I once dreamed about, and it seemed like a very unusual idea to store and read data.

Syntax

Inside caton, I've seen only four concepts, when I dreamed:

• Sets
• Lists
• Properties

Field - Type of element which contains single value (e.g. String, Integer number, Floating point number, Logical Flag)

Set - Type of element, which contains unlimited count of elements with unique names.

List - Type of element, which contains unlimited count of unnamed, indexed elements.

List stores objects of only one type. List structure can store sets but structure of sets must be same!

Properties - Objects which can store only one of three previous types

Syntax Internals

I decided to design simple toolkit using R programming language for Caton and inside of this toolkit, Lexems defines as built-in types of expressionis

in file	in toolkit	description
()	set_node	set declaration
[]	list_node	list declaration
#	comment_node	comment (1 string)
*	any_node	"all inclusive" mark
any word	prop_node	property declaration

All Properties includes themselves 2 parameters: key and value Key is name of property itself Value is object (one of three) concepts

Examples

The most sweet part in repo are examples of syntax usage.

app=(
   # Applications configuration
   user="admin"       # Postgre secret file
   password="admin"   # host working at https://127.0.0.1:5432
   
   args=[
      # Usage of Lists as List<string>
      "--usessl";
      "--cert";
      "mycert.crt"
    ]
   
   settings=(
      # Usage of Sets as structures
      debug=true
      log_level="info"
      allowed_users=*
   )
   
   rules=[
      # Usage of Lists as List<Rule>
      # Lists can store the Sets but sets must be 
      (rule="disableTempAdm" flag: true);
      (rule="disableFindMe" flag: true)
   ]
)

In Future

I want to add extentions like XSD schemas in XAML/XML for more strict design of object's notation and Some instruments/frameworks for working with Caton marked up files.