karol11 / cml

A text-based data format. A lightweight replacement of XML, YAML and JSON. It is strictly typed, and it can represent free form data structures.

CML

CML - is a text-based object representation data format.

Its nearest analogs are YAML, XML and JSON.

The main features that distinguish CML from competitors are:

• CML stores explicit type information,
• Its data formats are not limited to tree-like structures, CML can store arbitrary cross-references,
• CML has simple, obvious and unambiguous syntax ideally suitable both for a human reader and computer parsing.

This repository contains libraries for

• JavaScript,
• Java
• and C that helps both read and write CML files in STAX and DOM modes.

Here is a simple CML example:

Menu.file
caption "File"
items:
  Command.new
  caption "New..."
  hotkey "Ctrl+N"

  Command.open
  caption "Open..."

  Divider

  Submenu.recents
  caption "Recent files"

And here is a more complex example showing all CML features

; this is a comment line
Polygon                        ; <- class name of root object
description "A test polygon"   ; <- a string field
scale 1.5                      ; <- a floating-point number field
visible +                      ; <- a boolean field
pivot Point                    ; <- a field containing a nested object of class Point
  x 100                        ;    <- this nested point has two integer fields x and y
  y 42
points:                        ; <- another field of root polygon containing an array
  Point                        ;    <- array contents - three point objects
  x -10
  y 0

  Point.p1                     ;    <- this is a named object p1
  x 10
  y 10.5
	
  Point
  x 0
  y 0
focused=p1                     ; <- this field is a *reference* to the Point.p1
background# 177                ; <- this field contains binary data
  R0lGODdhGAAgAKIAAAAAAIAAAICAgMDAwP8AAP
  ///wAAAAAAACwAAAAAGAAgAAAEfpDISau9VhTM
  6/hdSAybyBWleaGDuhatOwkkLE8wGd8FnfK6m0
  RnExJ6IOPAZyQIfD/X87O7PafCJVVg4jqXtI+X
  E74KAACzJwk2n9Hn8PYpoVMG8LjblE8L32dVKg
  FTAUpaY1JLAEuGUmlocDJvkX6PlZZSAWiERgIB
  hIIVEQA7

Links

• Wiki