locrian 0.1.1

A simple embeddable functional programming language.
Documentation 
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// Adapted from https://pest.rs/book/examples/json.html
WHITESPACE = _{ " " | "\t" | "\r" | "\n" | COMMENT }
COMMENT    =  { ("//" ~ (!NEWLINE ~ ANY)* ~ NEWLINE) | ("/*" ~ (!("*/") ~ ANY)* ~ "*/") }
ident      = @{ (ASCII_ALPHA | "$" | "_") ~ (ASCII_ALPHANUMERIC | "$" | "_" | "-")* }
splat      =  { "..." ~ value }
parameters =  { WHITESPACE* ~ value ~ ("," ~ WHITESPACE* ~ value)* }
fn_call    = ${ ident ~ WHITESPACE* ~ "(" ~ WHITESPACE* ~ (splat | parameters)? ~ WHITESPACE* ~ ")" }
object     =  {
    "{" ~ WHITESPACE* ~ "}"
  | "{" ~ WHITESPACE* ~ pair ~ (WHITESPACE* ~ "," ~ WHITESPACE* ~ pair)* ~ WHITESPACE* ~ "}"
}
pair       =  { string ~ WHITESPACE* ~ ":" ~ WHITESPACE* ~ value }
array      =  {
    "[" ~ WHITESPACE* ~ "]"
  | "[" ~ WHITESPACE* ~ value ~ (WHITESPACE* ~ "," ~ WHITESPACE* ~ value)* ~ WHITESPACE* ~ "]"
}
string     = ${ "\"" ~ inner ~ "\"" }
inner      = @{ char* }
char       =  {
    !("\"" | "\\") ~ ANY
  | "\\" ~ ("\"" | "\\" | "/" | "b" | "f" | "n" | "r" | "t")
  | "\\" ~ ("u" ~ ASCII_HEX_DIGIT{4})
}
boolean    =  { "true" | "false" }
null       =  { "null" }
number     = @{
    "-"? ~ ("0" | ASCII_NONZERO_DIGIT ~ ASCII_DIGIT*) ~ ("." ~ ASCII_DIGIT*)? ~ (^"e" ~ ("+" | "-")? ~ ASCII_DIGIT+)?
}
quote      =  { "'" ~ value }
value      = _{ fn_call | boolean | null | ident | string | object | array | number | quote }
expr       = _{ SOI ~ value ~ COMMENT? ~ EOI }