highlight 'type names'

[Alexey-T]

these words are predefined type names. maybe HL them with different color?

base64
base85
boolean
country-2
country-3
country-subdivision
currency
date
date-time
decimal
decimal128
decimal64
duration
email
f32
f64
hostname
i128
i16
i32
i64
i8
idn-email
idn-hostname
ipv4
ipv6
irl
irl-reference
isize
number
regex
string
time
u128
u16
u32
u64
u8
url
url-reference
url-template
usize
uuid

docs:

Type Annotations

KDL supports type annotations on both values and nodes. These can be arbitrary, but can be used by individual implementations or use-cases to constrain KDL's basic types. A number of type names are also reserved to have specific meanings.

numbers (u8)10 (i32)20 myfloat=(f32)1.5 {
  strings (uuid)"123e4567-e89b-12d3-a456-426614174000" (date)"2021-02-03" filter=(regex)#"$\d+"#
  (author)person name=Alex
}