FML is a data serialization language. It allows to manipulate data in several types.

All documentation of FML can be found here. It contains all guides and detailed documentation.

• Comments: FML allows one-line comments. Comments start with a hash symbol (#). E.g. # This is a comment.
• Keys: keys can be started with an underscore (_) or letter, followed by numbers, lower or upper case letters, and/or underscores.
• Values:
  • Strings: strings must be in double-quotes. E.g. "this is a string".
  • Chars: chars must be in quotes. E.g. 'c'.
  • Integers¹: e.g. 255.
  • Float¹: e.g. floats can be write 255., 255.0 or 255f.
  • Boolean: booleans can be true or false.
  • Array: arrays must be curly between braces ({ }) separated by comma (,). E.g. {0, 1, 2}, {'a', 'b', 'c'}, {{0, 1}, {0, 1}} and so on.

¹ Some types must be parsed as maximum language precision for that type.

# All data types of a FML file. # Literals string:"string \"between\" double quotes"; char:'c'; quote_in_char:'\''; # Numerics int:10; float:0.5; # Booleans boolTrue:true; boolFalse:false; # Vector stringArr:{"yes", "no", "maybe"}; chargArr:{'a', 'b', 'c'}; intArr:{0, 1, 2, 10, -5}; floatArr:{0.9, 1.7, -0.2, 1.06, -5.618}; boolArr:{true, false, true}; # Matrix multArr2:{ {0, 1, 2}, {0, 1, 2}, {0, 1, 2} }; # Multidimensional array multArr3:{ { {0, 1, 2}, {0, 1, 2}, {0, 1, 2} }, { {0, 1, 2}, {0, 1, 2}, {0, 1, 2} }, { {0, 1, 2}, {0, 1, 2}, {0, 1, 2} } }; # Sub-structures sub_str: v1: 10; v2: "sub"; ; # Array of sub-structures stringArr:{ sub_str: v1:10; v2:"sub"; ;, sub_str: v1:11; v2:"sup"; ;, sub_str: v1:20; v2:"sut"; ; };