Type casting - yaml/YAML2 GitHub Wiki

Typically

d: !!float 123             # also a float via explicit data type prefixed by (!!)
e: !!str 123               # a string, disambiguated by explicit type
f: !!str Yes               # a string via explicit type    

{d: !!float 123 , e: !!str 123 , f: !!str Yes }

What if it's like this?

d: (float) 123             # also a float via explicit data type prefixed by (!!)
e: (str) 123               # a string, disambiguated by explicit type
f: (str) Yes               # a string via explicit type    

{d: (float) 123 ,   e: (str) 123 , f: (str) Yes }

custom datatypes could be then like:

d: (!complex) 123+32i 
e: (!complex) 123/_32rad 
f: (!complex) 23exp84i
g: (!mathEqn) "exp(32x)"

{d: (!complex) 123+32i ,   e: (!complex) 123/_32rad , f: (!complex) 23exp84i }

---

If we are willing to disallow "!" in keynames

d!!float: 123             # also a float via explicit data type prefixed by (!!)
e!!str: 123               # a string, disambiguated by explicit type
f!!str: Yes               # a string via explicit type    

{d!!float: 123 , e!!str: 123 , f!!str: Yes }

---

Alternatively:

d(float):  123             # also a float via explicit data type prefixed by (!!)
e(str):  123               # a string, disambiguated by explicit type
f(str):  Yes               # a string via explicit type    

{d(float): 123 ,  e(str): 123 , f(str):  Yes }

or:

(float) d:  123             # also a float via explicit data type prefixed by (!!)
(str)   e:  123               # a string, disambiguated by explicit type
(str)   f:  Yes               # a string via explicit type    

{(float)d: 123 ,  (str)e: 123 , (str)f:  Yes }